Show More
@@ -1,3550 +1,3551 b'' | |||||
1 | # revlog.py - storage back-end for mercurial |
|
1 | # revlog.py - storage back-end for mercurial | |
2 | # coding: utf8 |
|
2 | # coding: utf8 | |
3 | # |
|
3 | # | |
4 | # Copyright 2005-2007 Olivia Mackall <olivia@selenic.com> |
|
4 | # Copyright 2005-2007 Olivia Mackall <olivia@selenic.com> | |
5 | # |
|
5 | # | |
6 | # This software may be used and distributed according to the terms of the |
|
6 | # This software may be used and distributed according to the terms of the | |
7 | # GNU General Public License version 2 or any later version. |
|
7 | # GNU General Public License version 2 or any later version. | |
8 |
|
8 | |||
9 | """Storage back-end for Mercurial. |
|
9 | """Storage back-end for Mercurial. | |
10 |
|
10 | |||
11 | This provides efficient delta storage with O(1) retrieve and append |
|
11 | This provides efficient delta storage with O(1) retrieve and append | |
12 | and O(changes) merge between branches. |
|
12 | and O(changes) merge between branches. | |
13 | """ |
|
13 | """ | |
14 |
|
14 | |||
15 |
|
15 | |||
16 | import binascii |
|
16 | import binascii | |
17 | import collections |
|
17 | import collections | |
18 | import contextlib |
|
18 | import contextlib | |
19 | import io |
|
19 | import io | |
20 | import os |
|
20 | import os | |
21 | import struct |
|
21 | import struct | |
22 | import weakref |
|
22 | import weakref | |
23 | import zlib |
|
23 | import zlib | |
24 |
|
24 | |||
25 | # import stuff from node for others to import from revlog |
|
25 | # import stuff from node for others to import from revlog | |
26 | from .node import ( |
|
26 | from .node import ( | |
27 | bin, |
|
27 | bin, | |
28 | hex, |
|
28 | hex, | |
29 | nullrev, |
|
29 | nullrev, | |
30 | sha1nodeconstants, |
|
30 | sha1nodeconstants, | |
31 | short, |
|
31 | short, | |
32 | wdirrev, |
|
32 | wdirrev, | |
33 | ) |
|
33 | ) | |
34 | from .i18n import _ |
|
34 | from .i18n import _ | |
35 | from .revlogutils.constants import ( |
|
35 | from .revlogutils.constants import ( | |
36 | ALL_KINDS, |
|
36 | ALL_KINDS, | |
37 | CHANGELOGV2, |
|
37 | CHANGELOGV2, | |
38 | COMP_MODE_DEFAULT, |
|
38 | COMP_MODE_DEFAULT, | |
39 | COMP_MODE_INLINE, |
|
39 | COMP_MODE_INLINE, | |
40 | COMP_MODE_PLAIN, |
|
40 | COMP_MODE_PLAIN, | |
41 | DELTA_BASE_REUSE_NO, |
|
41 | DELTA_BASE_REUSE_NO, | |
42 | DELTA_BASE_REUSE_TRY, |
|
42 | DELTA_BASE_REUSE_TRY, | |
43 | ENTRY_RANK, |
|
43 | ENTRY_RANK, | |
44 | FEATURES_BY_VERSION, |
|
44 | FEATURES_BY_VERSION, | |
45 | FLAG_GENERALDELTA, |
|
45 | FLAG_GENERALDELTA, | |
46 | FLAG_INLINE_DATA, |
|
46 | FLAG_INLINE_DATA, | |
47 | INDEX_HEADER, |
|
47 | INDEX_HEADER, | |
48 | KIND_CHANGELOG, |
|
48 | KIND_CHANGELOG, | |
49 | KIND_FILELOG, |
|
49 | KIND_FILELOG, | |
50 | RANK_UNKNOWN, |
|
50 | RANK_UNKNOWN, | |
51 | REVLOGV0, |
|
51 | REVLOGV0, | |
52 | REVLOGV1, |
|
52 | REVLOGV1, | |
53 | REVLOGV1_FLAGS, |
|
53 | REVLOGV1_FLAGS, | |
54 | REVLOGV2, |
|
54 | REVLOGV2, | |
55 | REVLOGV2_FLAGS, |
|
55 | REVLOGV2_FLAGS, | |
56 | REVLOG_DEFAULT_FLAGS, |
|
56 | REVLOG_DEFAULT_FLAGS, | |
57 | REVLOG_DEFAULT_FORMAT, |
|
57 | REVLOG_DEFAULT_FORMAT, | |
58 | REVLOG_DEFAULT_VERSION, |
|
58 | REVLOG_DEFAULT_VERSION, | |
59 | SUPPORTED_FLAGS, |
|
59 | SUPPORTED_FLAGS, | |
60 | ) |
|
60 | ) | |
61 | from .revlogutils.flagutil import ( |
|
61 | from .revlogutils.flagutil import ( | |
62 | REVIDX_DEFAULT_FLAGS, |
|
62 | REVIDX_DEFAULT_FLAGS, | |
63 | REVIDX_ELLIPSIS, |
|
63 | REVIDX_ELLIPSIS, | |
64 | REVIDX_EXTSTORED, |
|
64 | REVIDX_EXTSTORED, | |
65 | REVIDX_FLAGS_ORDER, |
|
65 | REVIDX_FLAGS_ORDER, | |
66 | REVIDX_HASCOPIESINFO, |
|
66 | REVIDX_HASCOPIESINFO, | |
67 | REVIDX_ISCENSORED, |
|
67 | REVIDX_ISCENSORED, | |
68 | REVIDX_RAWTEXT_CHANGING_FLAGS, |
|
68 | REVIDX_RAWTEXT_CHANGING_FLAGS, | |
69 | ) |
|
69 | ) | |
70 | from .thirdparty import attr |
|
70 | from .thirdparty import attr | |
71 | from . import ( |
|
71 | from . import ( | |
72 | ancestor, |
|
72 | ancestor, | |
73 | dagop, |
|
73 | dagop, | |
74 | error, |
|
74 | error, | |
75 | mdiff, |
|
75 | mdiff, | |
76 | policy, |
|
76 | policy, | |
77 | pycompat, |
|
77 | pycompat, | |
78 | revlogutils, |
|
78 | revlogutils, | |
79 | templatefilters, |
|
79 | templatefilters, | |
80 | util, |
|
80 | util, | |
81 | ) |
|
81 | ) | |
82 | from .interfaces import ( |
|
82 | from .interfaces import ( | |
83 | repository, |
|
83 | repository, | |
84 | util as interfaceutil, |
|
84 | util as interfaceutil, | |
85 | ) |
|
85 | ) | |
86 | from .revlogutils import ( |
|
86 | from .revlogutils import ( | |
87 | deltas as deltautil, |
|
87 | deltas as deltautil, | |
88 | docket as docketutil, |
|
88 | docket as docketutil, | |
89 | flagutil, |
|
89 | flagutil, | |
90 | nodemap as nodemaputil, |
|
90 | nodemap as nodemaputil, | |
91 | randomaccessfile, |
|
91 | randomaccessfile, | |
92 | revlogv0, |
|
92 | revlogv0, | |
93 | rewrite, |
|
93 | rewrite, | |
94 | sidedata as sidedatautil, |
|
94 | sidedata as sidedatautil, | |
95 | ) |
|
95 | ) | |
96 | from .utils import ( |
|
96 | from .utils import ( | |
97 | storageutil, |
|
97 | storageutil, | |
98 | stringutil, |
|
98 | stringutil, | |
99 | ) |
|
99 | ) | |
100 |
|
100 | |||
101 | # blanked usage of all the name to prevent pyflakes constraints |
|
101 | # blanked usage of all the name to prevent pyflakes constraints | |
102 | # We need these name available in the module for extensions. |
|
102 | # We need these name available in the module for extensions. | |
103 |
|
103 | |||
104 | REVLOGV0 |
|
104 | REVLOGV0 | |
105 | REVLOGV1 |
|
105 | REVLOGV1 | |
106 | REVLOGV2 |
|
106 | REVLOGV2 | |
107 | CHANGELOGV2 |
|
107 | CHANGELOGV2 | |
108 | FLAG_INLINE_DATA |
|
108 | FLAG_INLINE_DATA | |
109 | FLAG_GENERALDELTA |
|
109 | FLAG_GENERALDELTA | |
110 | REVLOG_DEFAULT_FLAGS |
|
110 | REVLOG_DEFAULT_FLAGS | |
111 | REVLOG_DEFAULT_FORMAT |
|
111 | REVLOG_DEFAULT_FORMAT | |
112 | REVLOG_DEFAULT_VERSION |
|
112 | REVLOG_DEFAULT_VERSION | |
113 | REVLOGV1_FLAGS |
|
113 | REVLOGV1_FLAGS | |
114 | REVLOGV2_FLAGS |
|
114 | REVLOGV2_FLAGS | |
115 | REVIDX_ISCENSORED |
|
115 | REVIDX_ISCENSORED | |
116 | REVIDX_ELLIPSIS |
|
116 | REVIDX_ELLIPSIS | |
117 | REVIDX_HASCOPIESINFO |
|
117 | REVIDX_HASCOPIESINFO | |
118 | REVIDX_EXTSTORED |
|
118 | REVIDX_EXTSTORED | |
119 | REVIDX_DEFAULT_FLAGS |
|
119 | REVIDX_DEFAULT_FLAGS | |
120 | REVIDX_FLAGS_ORDER |
|
120 | REVIDX_FLAGS_ORDER | |
121 | REVIDX_RAWTEXT_CHANGING_FLAGS |
|
121 | REVIDX_RAWTEXT_CHANGING_FLAGS | |
122 |
|
122 | |||
123 | parsers = policy.importmod('parsers') |
|
123 | parsers = policy.importmod('parsers') | |
124 | rustancestor = policy.importrust('ancestor') |
|
124 | rustancestor = policy.importrust('ancestor') | |
125 | rustdagop = policy.importrust('dagop') |
|
125 | rustdagop = policy.importrust('dagop') | |
126 | rustrevlog = policy.importrust('revlog') |
|
126 | rustrevlog = policy.importrust('revlog') | |
127 |
|
127 | |||
128 | # Aliased for performance. |
|
128 | # Aliased for performance. | |
129 | _zlibdecompress = zlib.decompress |
|
129 | _zlibdecompress = zlib.decompress | |
130 |
|
130 | |||
131 | # max size of inline data embedded into a revlog |
|
131 | # max size of inline data embedded into a revlog | |
132 | _maxinline = 131072 |
|
132 | _maxinline = 131072 | |
133 |
|
133 | |||
134 | # Flag processors for REVIDX_ELLIPSIS. |
|
134 | # Flag processors for REVIDX_ELLIPSIS. | |
135 | def ellipsisreadprocessor(rl, text): |
|
135 | def ellipsisreadprocessor(rl, text): | |
136 | return text, False |
|
136 | return text, False | |
137 |
|
137 | |||
138 |
|
138 | |||
139 | def ellipsiswriteprocessor(rl, text): |
|
139 | def ellipsiswriteprocessor(rl, text): | |
140 | return text, False |
|
140 | return text, False | |
141 |
|
141 | |||
142 |
|
142 | |||
143 | def ellipsisrawprocessor(rl, text): |
|
143 | def ellipsisrawprocessor(rl, text): | |
144 | return False |
|
144 | return False | |
145 |
|
145 | |||
146 |
|
146 | |||
147 | ellipsisprocessor = ( |
|
147 | ellipsisprocessor = ( | |
148 | ellipsisreadprocessor, |
|
148 | ellipsisreadprocessor, | |
149 | ellipsiswriteprocessor, |
|
149 | ellipsiswriteprocessor, | |
150 | ellipsisrawprocessor, |
|
150 | ellipsisrawprocessor, | |
151 | ) |
|
151 | ) | |
152 |
|
152 | |||
153 |
|
153 | |||
154 | def _verify_revision(rl, skipflags, state, node): |
|
154 | def _verify_revision(rl, skipflags, state, node): | |
155 | """Verify the integrity of the given revlog ``node`` while providing a hook |
|
155 | """Verify the integrity of the given revlog ``node`` while providing a hook | |
156 | point for extensions to influence the operation.""" |
|
156 | point for extensions to influence the operation.""" | |
157 | if skipflags: |
|
157 | if skipflags: | |
158 | state[b'skipread'].add(node) |
|
158 | state[b'skipread'].add(node) | |
159 | else: |
|
159 | else: | |
160 | # Side-effect: read content and verify hash. |
|
160 | # Side-effect: read content and verify hash. | |
161 | rl.revision(node) |
|
161 | rl.revision(node) | |
162 |
|
162 | |||
163 |
|
163 | |||
164 | # True if a fast implementation for persistent-nodemap is available |
|
164 | # True if a fast implementation for persistent-nodemap is available | |
165 | # |
|
165 | # | |
166 | # We also consider we have a "fast" implementation in "pure" python because |
|
166 | # We also consider we have a "fast" implementation in "pure" python because | |
167 | # people using pure don't really have performance consideration (and a |
|
167 | # people using pure don't really have performance consideration (and a | |
168 | # wheelbarrow of other slowness source) |
|
168 | # wheelbarrow of other slowness source) | |
169 | HAS_FAST_PERSISTENT_NODEMAP = rustrevlog is not None or hasattr( |
|
169 | HAS_FAST_PERSISTENT_NODEMAP = rustrevlog is not None or hasattr( | |
170 | parsers, 'BaseIndexObject' |
|
170 | parsers, 'BaseIndexObject' | |
171 | ) |
|
171 | ) | |
172 |
|
172 | |||
173 |
|
173 | |||
174 | @interfaceutil.implementer(repository.irevisiondelta) |
|
174 | @interfaceutil.implementer(repository.irevisiondelta) | |
175 | @attr.s(slots=True) |
|
175 | @attr.s(slots=True) | |
176 | class revlogrevisiondelta: |
|
176 | class revlogrevisiondelta: | |
177 | node = attr.ib() |
|
177 | node = attr.ib() | |
178 | p1node = attr.ib() |
|
178 | p1node = attr.ib() | |
179 | p2node = attr.ib() |
|
179 | p2node = attr.ib() | |
180 | basenode = attr.ib() |
|
180 | basenode = attr.ib() | |
181 | flags = attr.ib() |
|
181 | flags = attr.ib() | |
182 | baserevisionsize = attr.ib() |
|
182 | baserevisionsize = attr.ib() | |
183 | revision = attr.ib() |
|
183 | revision = attr.ib() | |
184 | delta = attr.ib() |
|
184 | delta = attr.ib() | |
185 | sidedata = attr.ib() |
|
185 | sidedata = attr.ib() | |
186 | protocol_flags = attr.ib() |
|
186 | protocol_flags = attr.ib() | |
187 | linknode = attr.ib(default=None) |
|
187 | linknode = attr.ib(default=None) | |
188 |
|
188 | |||
189 |
|
189 | |||
190 | @interfaceutil.implementer(repository.iverifyproblem) |
|
190 | @interfaceutil.implementer(repository.iverifyproblem) | |
191 | @attr.s(frozen=True) |
|
191 | @attr.s(frozen=True) | |
192 | class revlogproblem: |
|
192 | class revlogproblem: | |
193 | warning = attr.ib(default=None) |
|
193 | warning = attr.ib(default=None) | |
194 | error = attr.ib(default=None) |
|
194 | error = attr.ib(default=None) | |
195 | node = attr.ib(default=None) |
|
195 | node = attr.ib(default=None) | |
196 |
|
196 | |||
197 |
|
197 | |||
198 | def parse_index_v1(data, inline): |
|
198 | def parse_index_v1(data, inline): | |
199 | # call the C implementation to parse the index data |
|
199 | # call the C implementation to parse the index data | |
200 | index, cache = parsers.parse_index2(data, inline) |
|
200 | index, cache = parsers.parse_index2(data, inline) | |
201 | return index, cache |
|
201 | return index, cache | |
202 |
|
202 | |||
203 |
|
203 | |||
204 | def parse_index_v2(data, inline): |
|
204 | def parse_index_v2(data, inline): | |
205 | # call the C implementation to parse the index data |
|
205 | # call the C implementation to parse the index data | |
206 | index, cache = parsers.parse_index2(data, inline, format=REVLOGV2) |
|
206 | index, cache = parsers.parse_index2(data, inline, format=REVLOGV2) | |
207 | return index, cache |
|
207 | return index, cache | |
208 |
|
208 | |||
209 |
|
209 | |||
210 | def parse_index_cl_v2(data, inline): |
|
210 | def parse_index_cl_v2(data, inline): | |
211 | # call the C implementation to parse the index data |
|
211 | # call the C implementation to parse the index data | |
212 | index, cache = parsers.parse_index2(data, inline, format=CHANGELOGV2) |
|
212 | index, cache = parsers.parse_index2(data, inline, format=CHANGELOGV2) | |
213 | return index, cache |
|
213 | return index, cache | |
214 |
|
214 | |||
215 |
|
215 | |||
216 | if hasattr(parsers, 'parse_index_devel_nodemap'): |
|
216 | if hasattr(parsers, 'parse_index_devel_nodemap'): | |
217 |
|
217 | |||
218 | def parse_index_v1_nodemap(data, inline): |
|
218 | def parse_index_v1_nodemap(data, inline): | |
219 | index, cache = parsers.parse_index_devel_nodemap(data, inline) |
|
219 | index, cache = parsers.parse_index_devel_nodemap(data, inline) | |
220 | return index, cache |
|
220 | return index, cache | |
221 |
|
221 | |||
222 |
|
222 | |||
223 | else: |
|
223 | else: | |
224 | parse_index_v1_nodemap = None |
|
224 | parse_index_v1_nodemap = None | |
225 |
|
225 | |||
226 |
|
226 | |||
227 | def parse_index_v1_mixed(data, inline): |
|
227 | def parse_index_v1_mixed(data, inline): | |
228 | index, cache = parse_index_v1(data, inline) |
|
228 | index, cache = parse_index_v1(data, inline) | |
229 | return rustrevlog.MixedIndex(index), cache |
|
229 | return rustrevlog.MixedIndex(index), cache | |
230 |
|
230 | |||
231 |
|
231 | |||
232 | # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte |
|
232 | # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte | |
233 | # signed integer) |
|
233 | # signed integer) | |
234 | _maxentrysize = 0x7FFFFFFF |
|
234 | _maxentrysize = 0x7FFFFFFF | |
235 |
|
235 | |||
236 | FILE_TOO_SHORT_MSG = _( |
|
236 | FILE_TOO_SHORT_MSG = _( | |
237 | b'cannot read from revlog %s;' |
|
237 | b'cannot read from revlog %s;' | |
238 | b' expected %d bytes from offset %d, data size is %d' |
|
238 | b' expected %d bytes from offset %d, data size is %d' | |
239 | ) |
|
239 | ) | |
240 |
|
240 | |||
241 | hexdigits = b'0123456789abcdefABCDEF' |
|
241 | hexdigits = b'0123456789abcdefABCDEF' | |
242 |
|
242 | |||
243 |
|
243 | |||
244 | class revlog: |
|
244 | class revlog: | |
245 | """ |
|
245 | """ | |
246 | the underlying revision storage object |
|
246 | the underlying revision storage object | |
247 |
|
247 | |||
248 | A revlog consists of two parts, an index and the revision data. |
|
248 | A revlog consists of two parts, an index and the revision data. | |
249 |
|
249 | |||
250 | The index is a file with a fixed record size containing |
|
250 | The index is a file with a fixed record size containing | |
251 | information on each revision, including its nodeid (hash), the |
|
251 | information on each revision, including its nodeid (hash), the | |
252 | nodeids of its parents, the position and offset of its data within |
|
252 | nodeids of its parents, the position and offset of its data within | |
253 | the data file, and the revision it's based on. Finally, each entry |
|
253 | the data file, and the revision it's based on. Finally, each entry | |
254 | contains a linkrev entry that can serve as a pointer to external |
|
254 | contains a linkrev entry that can serve as a pointer to external | |
255 | data. |
|
255 | data. | |
256 |
|
256 | |||
257 | The revision data itself is a linear collection of data chunks. |
|
257 | The revision data itself is a linear collection of data chunks. | |
258 | Each chunk represents a revision and is usually represented as a |
|
258 | Each chunk represents a revision and is usually represented as a | |
259 | delta against the previous chunk. To bound lookup time, runs of |
|
259 | delta against the previous chunk. To bound lookup time, runs of | |
260 | deltas are limited to about 2 times the length of the original |
|
260 | deltas are limited to about 2 times the length of the original | |
261 | version data. This makes retrieval of a version proportional to |
|
261 | version data. This makes retrieval of a version proportional to | |
262 | its size, or O(1) relative to the number of revisions. |
|
262 | its size, or O(1) relative to the number of revisions. | |
263 |
|
263 | |||
264 | Both pieces of the revlog are written to in an append-only |
|
264 | Both pieces of the revlog are written to in an append-only | |
265 | fashion, which means we never need to rewrite a file to insert or |
|
265 | fashion, which means we never need to rewrite a file to insert or | |
266 | remove data, and can use some simple techniques to avoid the need |
|
266 | remove data, and can use some simple techniques to avoid the need | |
267 | for locking while reading. |
|
267 | for locking while reading. | |
268 |
|
268 | |||
269 | If checkambig, indexfile is opened with checkambig=True at |
|
269 | If checkambig, indexfile is opened with checkambig=True at | |
270 | writing, to avoid file stat ambiguity. |
|
270 | writing, to avoid file stat ambiguity. | |
271 |
|
271 | |||
272 | If mmaplargeindex is True, and an mmapindexthreshold is set, the |
|
272 | If mmaplargeindex is True, and an mmapindexthreshold is set, the | |
273 | index will be mmapped rather than read if it is larger than the |
|
273 | index will be mmapped rather than read if it is larger than the | |
274 | configured threshold. |
|
274 | configured threshold. | |
275 |
|
275 | |||
276 | If censorable is True, the revlog can have censored revisions. |
|
276 | If censorable is True, the revlog can have censored revisions. | |
277 |
|
277 | |||
278 | If `upperboundcomp` is not None, this is the expected maximal gain from |
|
278 | If `upperboundcomp` is not None, this is the expected maximal gain from | |
279 | compression for the data content. |
|
279 | compression for the data content. | |
280 |
|
280 | |||
281 | `concurrencychecker` is an optional function that receives 3 arguments: a |
|
281 | `concurrencychecker` is an optional function that receives 3 arguments: a | |
282 | file handle, a filename, and an expected position. It should check whether |
|
282 | file handle, a filename, and an expected position. It should check whether | |
283 | the current position in the file handle is valid, and log/warn/fail (by |
|
283 | the current position in the file handle is valid, and log/warn/fail (by | |
284 | raising). |
|
284 | raising). | |
285 |
|
285 | |||
286 | See mercurial/revlogutils/contants.py for details about the content of an |
|
286 | See mercurial/revlogutils/contants.py for details about the content of an | |
287 | index entry. |
|
287 | index entry. | |
288 | """ |
|
288 | """ | |
289 |
|
289 | |||
290 | _flagserrorclass = error.RevlogError |
|
290 | _flagserrorclass = error.RevlogError | |
291 |
|
291 | |||
292 | @staticmethod |
|
292 | @staticmethod | |
293 | def is_inline_index(header_bytes): |
|
293 | def is_inline_index(header_bytes): | |
294 | """Determine if a revlog is inline from the initial bytes of the index""" |
|
294 | """Determine if a revlog is inline from the initial bytes of the index""" | |
295 | header = INDEX_HEADER.unpack(header_bytes)[0] |
|
295 | header = INDEX_HEADER.unpack(header_bytes)[0] | |
296 |
|
296 | |||
297 | _format_flags = header & ~0xFFFF |
|
297 | _format_flags = header & ~0xFFFF | |
298 | _format_version = header & 0xFFFF |
|
298 | _format_version = header & 0xFFFF | |
299 |
|
299 | |||
300 | features = FEATURES_BY_VERSION[_format_version] |
|
300 | features = FEATURES_BY_VERSION[_format_version] | |
301 | return features[b'inline'](_format_flags) |
|
301 | return features[b'inline'](_format_flags) | |
302 |
|
302 | |||
303 | def __init__( |
|
303 | def __init__( | |
304 | self, |
|
304 | self, | |
305 | opener, |
|
305 | opener, | |
306 | target, |
|
306 | target, | |
307 | radix, |
|
307 | radix, | |
308 | postfix=None, # only exist for `tmpcensored` now |
|
308 | postfix=None, # only exist for `tmpcensored` now | |
309 | checkambig=False, |
|
309 | checkambig=False, | |
310 | mmaplargeindex=False, |
|
310 | mmaplargeindex=False, | |
311 | censorable=False, |
|
311 | censorable=False, | |
312 | upperboundcomp=None, |
|
312 | upperboundcomp=None, | |
313 | persistentnodemap=False, |
|
313 | persistentnodemap=False, | |
314 | concurrencychecker=None, |
|
314 | concurrencychecker=None, | |
315 | trypending=False, |
|
315 | trypending=False, | |
316 | try_split=False, |
|
316 | try_split=False, | |
317 | canonical_parent_order=True, |
|
317 | canonical_parent_order=True, | |
318 | ): |
|
318 | ): | |
319 | """ |
|
319 | """ | |
320 | create a revlog object |
|
320 | create a revlog object | |
321 |
|
321 | |||
322 | opener is a function that abstracts the file opening operation |
|
322 | opener is a function that abstracts the file opening operation | |
323 | and can be used to implement COW semantics or the like. |
|
323 | and can be used to implement COW semantics or the like. | |
324 |
|
324 | |||
325 | `target`: a (KIND, ID) tuple that identify the content stored in |
|
325 | `target`: a (KIND, ID) tuple that identify the content stored in | |
326 | this revlog. It help the rest of the code to understand what the revlog |
|
326 | this revlog. It help the rest of the code to understand what the revlog | |
327 | is about without having to resort to heuristic and index filename |
|
327 | is about without having to resort to heuristic and index filename | |
328 | analysis. Note: that this must be reliably be set by normal code, but |
|
328 | analysis. Note: that this must be reliably be set by normal code, but | |
329 | that test, debug, or performance measurement code might not set this to |
|
329 | that test, debug, or performance measurement code might not set this to | |
330 | accurate value. |
|
330 | accurate value. | |
331 | """ |
|
331 | """ | |
332 | self.upperboundcomp = upperboundcomp |
|
332 | self.upperboundcomp = upperboundcomp | |
333 |
|
333 | |||
334 | self.radix = radix |
|
334 | self.radix = radix | |
335 |
|
335 | |||
336 | self._docket_file = None |
|
336 | self._docket_file = None | |
337 | self._indexfile = None |
|
337 | self._indexfile = None | |
338 | self._datafile = None |
|
338 | self._datafile = None | |
339 | self._sidedatafile = None |
|
339 | self._sidedatafile = None | |
340 | self._nodemap_file = None |
|
340 | self._nodemap_file = None | |
341 | self.postfix = postfix |
|
341 | self.postfix = postfix | |
342 | self._trypending = trypending |
|
342 | self._trypending = trypending | |
343 | self._try_split = try_split |
|
343 | self._try_split = try_split | |
344 | self.opener = opener |
|
344 | self.opener = opener | |
345 | if persistentnodemap: |
|
345 | if persistentnodemap: | |
346 | self._nodemap_file = nodemaputil.get_nodemap_file(self) |
|
346 | self._nodemap_file = nodemaputil.get_nodemap_file(self) | |
347 |
|
347 | |||
348 | assert target[0] in ALL_KINDS |
|
348 | assert target[0] in ALL_KINDS | |
349 | assert len(target) == 2 |
|
349 | assert len(target) == 2 | |
350 | self.target = target |
|
350 | self.target = target | |
351 | # When True, indexfile is opened with checkambig=True at writing, to |
|
351 | # When True, indexfile is opened with checkambig=True at writing, to | |
352 | # avoid file stat ambiguity. |
|
352 | # avoid file stat ambiguity. | |
353 | self._checkambig = checkambig |
|
353 | self._checkambig = checkambig | |
354 | self._mmaplargeindex = mmaplargeindex |
|
354 | self._mmaplargeindex = mmaplargeindex | |
355 | self._censorable = censorable |
|
355 | self._censorable = censorable | |
356 | # 3-tuple of (node, rev, text) for a raw revision. |
|
356 | # 3-tuple of (node, rev, text) for a raw revision. | |
357 | self._revisioncache = None |
|
357 | self._revisioncache = None | |
358 | # Maps rev to chain base rev. |
|
358 | # Maps rev to chain base rev. | |
359 | self._chainbasecache = util.lrucachedict(100) |
|
359 | self._chainbasecache = util.lrucachedict(100) | |
360 | # 2-tuple of (offset, data) of raw data from the revlog at an offset. |
|
360 | # 2-tuple of (offset, data) of raw data from the revlog at an offset. | |
361 | self._chunkcache = (0, b'') |
|
361 | self._chunkcache = (0, b'') | |
362 | # How much data to read and cache into the raw revlog data cache. |
|
362 | # How much data to read and cache into the raw revlog data cache. | |
363 | self._chunkcachesize = 65536 |
|
363 | self._chunkcachesize = 65536 | |
364 | self._maxchainlen = None |
|
364 | self._maxchainlen = None | |
365 | self._deltabothparents = True |
|
365 | self._deltabothparents = True | |
366 | self._candidate_group_chunk_size = 0 |
|
366 | self._candidate_group_chunk_size = 0 | |
367 | self._debug_delta = False |
|
367 | self._debug_delta = False | |
368 | self.index = None |
|
368 | self.index = None | |
369 | self._docket = None |
|
369 | self._docket = None | |
370 | self._nodemap_docket = None |
|
370 | self._nodemap_docket = None | |
371 | # Mapping of partial identifiers to full nodes. |
|
371 | # Mapping of partial identifiers to full nodes. | |
372 | self._pcache = {} |
|
372 | self._pcache = {} | |
373 | # Mapping of revision integer to full node. |
|
373 | # Mapping of revision integer to full node. | |
374 | self._compengine = b'zlib' |
|
374 | self._compengine = b'zlib' | |
375 | self._compengineopts = {} |
|
375 | self._compengineopts = {} | |
376 | self._maxdeltachainspan = -1 |
|
376 | self._maxdeltachainspan = -1 | |
377 | self._withsparseread = False |
|
377 | self._withsparseread = False | |
378 | self._sparserevlog = False |
|
378 | self._sparserevlog = False | |
379 | self.hassidedata = False |
|
379 | self.hassidedata = False | |
380 | self._srdensitythreshold = 0.50 |
|
380 | self._srdensitythreshold = 0.50 | |
381 | self._srmingapsize = 262144 |
|
381 | self._srmingapsize = 262144 | |
382 |
|
382 | |||
383 | # other optionnals features |
|
383 | # other optionnals features | |
384 |
|
384 | |||
385 | # might remove rank configuration once the computation has no impact |
|
385 | # might remove rank configuration once the computation has no impact | |
386 | self._compute_rank = False |
|
386 | self._compute_rank = False | |
387 |
|
387 | |||
388 | # Make copy of flag processors so each revlog instance can support |
|
388 | # Make copy of flag processors so each revlog instance can support | |
389 | # custom flags. |
|
389 | # custom flags. | |
390 | self._flagprocessors = dict(flagutil.flagprocessors) |
|
390 | self._flagprocessors = dict(flagutil.flagprocessors) | |
391 |
|
391 | |||
392 | # 3-tuple of file handles being used for active writing. |
|
392 | # 3-tuple of file handles being used for active writing. | |
393 | self._writinghandles = None |
|
393 | self._writinghandles = None | |
394 | # prevent nesting of addgroup |
|
394 | # prevent nesting of addgroup | |
395 | self._adding_group = None |
|
395 | self._adding_group = None | |
396 |
|
396 | |||
397 | self._loadindex() |
|
397 | self._loadindex() | |
398 |
|
398 | |||
399 | self._concurrencychecker = concurrencychecker |
|
399 | self._concurrencychecker = concurrencychecker | |
400 |
|
400 | |||
401 | # parent order is supposed to be semantically irrelevant, so we |
|
401 | # parent order is supposed to be semantically irrelevant, so we | |
402 | # normally resort parents to ensure that the first parent is non-null, |
|
402 | # normally resort parents to ensure that the first parent is non-null, | |
403 | # if there is a non-null parent at all. |
|
403 | # if there is a non-null parent at all. | |
404 | # filelog abuses the parent order as flag to mark some instances of |
|
404 | # filelog abuses the parent order as flag to mark some instances of | |
405 | # meta-encoded files, so allow it to disable this behavior. |
|
405 | # meta-encoded files, so allow it to disable this behavior. | |
406 | self.canonical_parent_order = canonical_parent_order |
|
406 | self.canonical_parent_order = canonical_parent_order | |
407 |
|
407 | |||
408 | def _init_opts(self): |
|
408 | def _init_opts(self): | |
409 | """process options (from above/config) to setup associated default revlog mode |
|
409 | """process options (from above/config) to setup associated default revlog mode | |
410 |
|
410 | |||
411 | These values might be affected when actually reading on disk information. |
|
411 | These values might be affected when actually reading on disk information. | |
412 |
|
412 | |||
413 | The relevant values are returned for use in _loadindex(). |
|
413 | The relevant values are returned for use in _loadindex(). | |
414 |
|
414 | |||
415 | * newversionflags: |
|
415 | * newversionflags: | |
416 | version header to use if we need to create a new revlog |
|
416 | version header to use if we need to create a new revlog | |
417 |
|
417 | |||
418 | * mmapindexthreshold: |
|
418 | * mmapindexthreshold: | |
419 | minimal index size for start to use mmap |
|
419 | minimal index size for start to use mmap | |
420 |
|
420 | |||
421 | * force_nodemap: |
|
421 | * force_nodemap: | |
422 | force the usage of a "development" version of the nodemap code |
|
422 | force the usage of a "development" version of the nodemap code | |
423 | """ |
|
423 | """ | |
424 | mmapindexthreshold = None |
|
424 | mmapindexthreshold = None | |
425 | opts = self.opener.options |
|
425 | opts = self.opener.options | |
426 |
|
426 | |||
427 | if b'changelogv2' in opts and self.revlog_kind == KIND_CHANGELOG: |
|
427 | if b'changelogv2' in opts and self.revlog_kind == KIND_CHANGELOG: | |
428 | new_header = CHANGELOGV2 |
|
428 | new_header = CHANGELOGV2 | |
429 | self._compute_rank = opts.get(b'changelogv2.compute-rank', True) |
|
429 | self._compute_rank = opts.get(b'changelogv2.compute-rank', True) | |
430 | elif b'revlogv2' in opts: |
|
430 | elif b'revlogv2' in opts: | |
431 | new_header = REVLOGV2 |
|
431 | new_header = REVLOGV2 | |
432 | elif b'revlogv1' in opts: |
|
432 | elif b'revlogv1' in opts: | |
433 | new_header = REVLOGV1 | FLAG_INLINE_DATA |
|
433 | new_header = REVLOGV1 | FLAG_INLINE_DATA | |
434 | if b'generaldelta' in opts: |
|
434 | if b'generaldelta' in opts: | |
435 | new_header |= FLAG_GENERALDELTA |
|
435 | new_header |= FLAG_GENERALDELTA | |
436 | elif b'revlogv0' in self.opener.options: |
|
436 | elif b'revlogv0' in self.opener.options: | |
437 | new_header = REVLOGV0 |
|
437 | new_header = REVLOGV0 | |
438 | else: |
|
438 | else: | |
439 | new_header = REVLOG_DEFAULT_VERSION |
|
439 | new_header = REVLOG_DEFAULT_VERSION | |
440 |
|
440 | |||
441 | if b'chunkcachesize' in opts: |
|
441 | if b'chunkcachesize' in opts: | |
442 | self._chunkcachesize = opts[b'chunkcachesize'] |
|
442 | self._chunkcachesize = opts[b'chunkcachesize'] | |
443 | if b'maxchainlen' in opts: |
|
443 | if b'maxchainlen' in opts: | |
444 | self._maxchainlen = opts[b'maxchainlen'] |
|
444 | self._maxchainlen = opts[b'maxchainlen'] | |
445 | if b'deltabothparents' in opts: |
|
445 | if b'deltabothparents' in opts: | |
446 | self._deltabothparents = opts[b'deltabothparents'] |
|
446 | self._deltabothparents = opts[b'deltabothparents'] | |
447 | dps_cgds = opts.get(b'delta-parent-search.candidate-group-chunk-size') |
|
447 | dps_cgds = opts.get(b'delta-parent-search.candidate-group-chunk-size') | |
448 | if dps_cgds: |
|
448 | if dps_cgds: | |
449 | self._candidate_group_chunk_size = dps_cgds |
|
449 | self._candidate_group_chunk_size = dps_cgds | |
450 | self._lazydelta = bool(opts.get(b'lazydelta', True)) |
|
450 | self._lazydelta = bool(opts.get(b'lazydelta', True)) | |
451 | self._lazydeltabase = False |
|
451 | self._lazydeltabase = False | |
452 | if self._lazydelta: |
|
452 | if self._lazydelta: | |
453 | self._lazydeltabase = bool(opts.get(b'lazydeltabase', False)) |
|
453 | self._lazydeltabase = bool(opts.get(b'lazydeltabase', False)) | |
454 | if b'debug-delta' in opts: |
|
454 | if b'debug-delta' in opts: | |
455 | self._debug_delta = opts[b'debug-delta'] |
|
455 | self._debug_delta = opts[b'debug-delta'] | |
456 | if b'compengine' in opts: |
|
456 | if b'compengine' in opts: | |
457 | self._compengine = opts[b'compengine'] |
|
457 | self._compengine = opts[b'compengine'] | |
458 | if b'zlib.level' in opts: |
|
458 | if b'zlib.level' in opts: | |
459 | self._compengineopts[b'zlib.level'] = opts[b'zlib.level'] |
|
459 | self._compengineopts[b'zlib.level'] = opts[b'zlib.level'] | |
460 | if b'zstd.level' in opts: |
|
460 | if b'zstd.level' in opts: | |
461 | self._compengineopts[b'zstd.level'] = opts[b'zstd.level'] |
|
461 | self._compengineopts[b'zstd.level'] = opts[b'zstd.level'] | |
462 | if b'maxdeltachainspan' in opts: |
|
462 | if b'maxdeltachainspan' in opts: | |
463 | self._maxdeltachainspan = opts[b'maxdeltachainspan'] |
|
463 | self._maxdeltachainspan = opts[b'maxdeltachainspan'] | |
464 | if self._mmaplargeindex and b'mmapindexthreshold' in opts: |
|
464 | if self._mmaplargeindex and b'mmapindexthreshold' in opts: | |
465 | mmapindexthreshold = opts[b'mmapindexthreshold'] |
|
465 | mmapindexthreshold = opts[b'mmapindexthreshold'] | |
466 | self._sparserevlog = bool(opts.get(b'sparse-revlog', False)) |
|
466 | self._sparserevlog = bool(opts.get(b'sparse-revlog', False)) | |
467 | withsparseread = bool(opts.get(b'with-sparse-read', False)) |
|
467 | withsparseread = bool(opts.get(b'with-sparse-read', False)) | |
468 | # sparse-revlog forces sparse-read |
|
468 | # sparse-revlog forces sparse-read | |
469 | self._withsparseread = self._sparserevlog or withsparseread |
|
469 | self._withsparseread = self._sparserevlog or withsparseread | |
470 | if b'sparse-read-density-threshold' in opts: |
|
470 | if b'sparse-read-density-threshold' in opts: | |
471 | self._srdensitythreshold = opts[b'sparse-read-density-threshold'] |
|
471 | self._srdensitythreshold = opts[b'sparse-read-density-threshold'] | |
472 | if b'sparse-read-min-gap-size' in opts: |
|
472 | if b'sparse-read-min-gap-size' in opts: | |
473 | self._srmingapsize = opts[b'sparse-read-min-gap-size'] |
|
473 | self._srmingapsize = opts[b'sparse-read-min-gap-size'] | |
474 | if opts.get(b'enableellipsis'): |
|
474 | if opts.get(b'enableellipsis'): | |
475 | self._flagprocessors[REVIDX_ELLIPSIS] = ellipsisprocessor |
|
475 | self._flagprocessors[REVIDX_ELLIPSIS] = ellipsisprocessor | |
476 |
|
476 | |||
477 | # revlog v0 doesn't have flag processors |
|
477 | # revlog v0 doesn't have flag processors | |
478 | for flag, processor in opts.get(b'flagprocessors', {}).items(): |
|
478 | for flag, processor in opts.get(b'flagprocessors', {}).items(): | |
479 | flagutil.insertflagprocessor(flag, processor, self._flagprocessors) |
|
479 | flagutil.insertflagprocessor(flag, processor, self._flagprocessors) | |
480 |
|
480 | |||
481 | if self._chunkcachesize <= 0: |
|
481 | if self._chunkcachesize <= 0: | |
482 | raise error.RevlogError( |
|
482 | raise error.RevlogError( | |
483 | _(b'revlog chunk cache size %r is not greater than 0') |
|
483 | _(b'revlog chunk cache size %r is not greater than 0') | |
484 | % self._chunkcachesize |
|
484 | % self._chunkcachesize | |
485 | ) |
|
485 | ) | |
486 | elif self._chunkcachesize & (self._chunkcachesize - 1): |
|
486 | elif self._chunkcachesize & (self._chunkcachesize - 1): | |
487 | raise error.RevlogError( |
|
487 | raise error.RevlogError( | |
488 | _(b'revlog chunk cache size %r is not a power of 2') |
|
488 | _(b'revlog chunk cache size %r is not a power of 2') | |
489 | % self._chunkcachesize |
|
489 | % self._chunkcachesize | |
490 | ) |
|
490 | ) | |
491 | force_nodemap = opts.get(b'devel-force-nodemap', False) |
|
491 | force_nodemap = opts.get(b'devel-force-nodemap', False) | |
492 | return new_header, mmapindexthreshold, force_nodemap |
|
492 | return new_header, mmapindexthreshold, force_nodemap | |
493 |
|
493 | |||
494 | def _get_data(self, filepath, mmap_threshold, size=None): |
|
494 | def _get_data(self, filepath, mmap_threshold, size=None): | |
495 | """return a file content with or without mmap |
|
495 | """return a file content with or without mmap | |
496 |
|
496 | |||
497 | If the file is missing return the empty string""" |
|
497 | If the file is missing return the empty string""" | |
498 | try: |
|
498 | try: | |
499 | with self.opener(filepath) as fp: |
|
499 | with self.opener(filepath) as fp: | |
500 | if mmap_threshold is not None: |
|
500 | if mmap_threshold is not None: | |
501 | file_size = self.opener.fstat(fp).st_size |
|
501 | file_size = self.opener.fstat(fp).st_size | |
502 | if file_size >= mmap_threshold: |
|
502 | if file_size >= mmap_threshold: | |
503 | if size is not None: |
|
503 | if size is not None: | |
504 | # avoid potentiel mmap crash |
|
504 | # avoid potentiel mmap crash | |
505 | size = min(file_size, size) |
|
505 | size = min(file_size, size) | |
506 | # TODO: should .close() to release resources without |
|
506 | # TODO: should .close() to release resources without | |
507 | # relying on Python GC |
|
507 | # relying on Python GC | |
508 | if size is None: |
|
508 | if size is None: | |
509 | return util.buffer(util.mmapread(fp)) |
|
509 | return util.buffer(util.mmapread(fp)) | |
510 | else: |
|
510 | else: | |
511 | return util.buffer(util.mmapread(fp, size)) |
|
511 | return util.buffer(util.mmapread(fp, size)) | |
512 | if size is None: |
|
512 | if size is None: | |
513 | return fp.read() |
|
513 | return fp.read() | |
514 | else: |
|
514 | else: | |
515 | return fp.read(size) |
|
515 | return fp.read(size) | |
516 | except FileNotFoundError: |
|
516 | except FileNotFoundError: | |
517 | return b'' |
|
517 | return b'' | |
518 |
|
518 | |||
519 | def get_streams(self, max_linkrev, force_inline=False): |
|
519 | def get_streams(self, max_linkrev, force_inline=False): | |
520 | """return a list of streams that represent this revlog |
|
520 | """return a list of streams that represent this revlog | |
521 |
|
521 | |||
522 | This is used by stream-clone to do bytes to bytes copies of a repository. |
|
522 | This is used by stream-clone to do bytes to bytes copies of a repository. | |
523 |
|
523 | |||
524 | This streams data for all revisions that refer to a changelog revision up |
|
524 | This streams data for all revisions that refer to a changelog revision up | |
525 | to `max_linkrev`. |
|
525 | to `max_linkrev`. | |
526 |
|
526 | |||
527 | If `force_inline` is set, it enforces that the stream will represent an inline revlog. |
|
527 | If `force_inline` is set, it enforces that the stream will represent an inline revlog. | |
528 |
|
528 | |||
529 | It returns is a list of three-tuple: |
|
529 | It returns is a list of three-tuple: | |
530 |
|
530 | |||
531 | [ |
|
531 | [ | |
532 | (filename, bytes_stream, stream_size), |
|
532 | (filename, bytes_stream, stream_size), | |
533 | β¦ |
|
533 | β¦ | |
534 | ] |
|
534 | ] | |
535 | """ |
|
535 | """ | |
536 | n = len(self) |
|
536 | n = len(self) | |
537 | index = self.index |
|
537 | index = self.index | |
538 | while n > 0: |
|
538 | while n > 0: | |
539 | linkrev = index[n - 1][4] |
|
539 | linkrev = index[n - 1][4] | |
540 | if linkrev < max_linkrev: |
|
540 | if linkrev < max_linkrev: | |
541 | break |
|
541 | break | |
542 | # note: this loop will rarely go through multiple iterations, since |
|
542 | # note: this loop will rarely go through multiple iterations, since | |
543 | # it only traverses commits created during the current streaming |
|
543 | # it only traverses commits created during the current streaming | |
544 | # pull operation. |
|
544 | # pull operation. | |
545 | # |
|
545 | # | |
546 | # If this become a problem, using a binary search should cap the |
|
546 | # If this become a problem, using a binary search should cap the | |
547 | # runtime of this. |
|
547 | # runtime of this. | |
548 | n = n - 1 |
|
548 | n = n - 1 | |
549 | if n == 0: |
|
549 | if n == 0: | |
550 | # no data to send |
|
550 | # no data to send | |
551 | return [] |
|
551 | return [] | |
552 | index_size = n * index.entry_size |
|
552 | index_size = n * index.entry_size | |
553 | data_size = self.end(n - 1) |
|
553 | data_size = self.end(n - 1) | |
554 |
|
554 | |||
555 | # XXX we might have been split (or stripped) since the object |
|
555 | # XXX we might have been split (or stripped) since the object | |
556 | # initialization, We need to close this race too, but having a way to |
|
556 | # initialization, We need to close this race too, but having a way to | |
557 | # pre-open the file we feed to the revlog and never closing them before |
|
557 | # pre-open the file we feed to the revlog and never closing them before | |
558 | # we are done streaming. |
|
558 | # we are done streaming. | |
559 |
|
559 | |||
560 | if self._inline: |
|
560 | if self._inline: | |
561 |
|
561 | |||
562 | def get_stream(): |
|
562 | def get_stream(): | |
563 | with self._indexfp() as fp: |
|
563 | with self._indexfp() as fp: | |
564 | yield None |
|
564 | yield None | |
565 | size = index_size + data_size |
|
565 | size = index_size + data_size | |
566 | if size <= 65536: |
|
566 | if size <= 65536: | |
567 | yield fp.read(size) |
|
567 | yield fp.read(size) | |
568 | else: |
|
568 | else: | |
569 | yield from util.filechunkiter(fp, limit=size) |
|
569 | yield from util.filechunkiter(fp, limit=size) | |
570 |
|
570 | |||
571 | inline_stream = get_stream() |
|
571 | inline_stream = get_stream() | |
572 | next(inline_stream) |
|
572 | next(inline_stream) | |
573 | return [ |
|
573 | return [ | |
574 | (self._indexfile, inline_stream, index_size + data_size), |
|
574 | (self._indexfile, inline_stream, index_size + data_size), | |
575 | ] |
|
575 | ] | |
576 | elif force_inline: |
|
576 | elif force_inline: | |
577 |
|
577 | |||
578 | def get_stream(): |
|
578 | def get_stream(): | |
579 | with self._datafp() as fp_d: |
|
579 | with self._datafp() as fp_d: | |
580 | yield None |
|
580 | yield None | |
581 |
|
581 | |||
582 | for rev in range(n): |
|
582 | for rev in range(n): | |
583 | idx = self.index.entry_binary(rev) |
|
583 | idx = self.index.entry_binary(rev) | |
584 | if rev == 0 and self._docket is None: |
|
584 | if rev == 0 and self._docket is None: | |
585 | # re-inject the inline flag |
|
585 | # re-inject the inline flag | |
586 | header = self._format_flags |
|
586 | header = self._format_flags | |
587 | header |= self._format_version |
|
587 | header |= self._format_version | |
588 | header |= FLAG_INLINE_DATA |
|
588 | header |= FLAG_INLINE_DATA | |
589 | header = self.index.pack_header(header) |
|
589 | header = self.index.pack_header(header) | |
590 | idx = header + idx |
|
590 | idx = header + idx | |
591 | yield idx |
|
591 | yield idx | |
592 | yield self._getsegmentforrevs(rev, rev, df=fp_d)[1] |
|
592 | yield self._getsegmentforrevs(rev, rev, df=fp_d)[1] | |
593 |
|
593 | |||
594 | inline_stream = get_stream() |
|
594 | inline_stream = get_stream() | |
595 | next(inline_stream) |
|
595 | next(inline_stream) | |
596 | return [ |
|
596 | return [ | |
597 | (self._indexfile, inline_stream, index_size + data_size), |
|
597 | (self._indexfile, inline_stream, index_size + data_size), | |
598 | ] |
|
598 | ] | |
599 | else: |
|
599 | else: | |
600 |
|
600 | |||
601 | def get_index_stream(): |
|
601 | def get_index_stream(): | |
602 | with self._indexfp() as fp: |
|
602 | with self._indexfp() as fp: | |
603 | yield None |
|
603 | yield None | |
604 | if index_size <= 65536: |
|
604 | if index_size <= 65536: | |
605 | yield fp.read(index_size) |
|
605 | yield fp.read(index_size) | |
606 | else: |
|
606 | else: | |
607 | yield from util.filechunkiter(fp, limit=index_size) |
|
607 | yield from util.filechunkiter(fp, limit=index_size) | |
608 |
|
608 | |||
609 | def get_data_stream(): |
|
609 | def get_data_stream(): | |
610 | with self._datafp() as fp: |
|
610 | with self._datafp() as fp: | |
611 | yield None |
|
611 | yield None | |
612 | if data_size <= 65536: |
|
612 | if data_size <= 65536: | |
613 | yield fp.read(data_size) |
|
613 | yield fp.read(data_size) | |
614 | else: |
|
614 | else: | |
615 | yield from util.filechunkiter(fp, limit=data_size) |
|
615 | yield from util.filechunkiter(fp, limit=data_size) | |
616 |
|
616 | |||
617 | index_stream = get_index_stream() |
|
617 | index_stream = get_index_stream() | |
618 | next(index_stream) |
|
618 | next(index_stream) | |
619 | data_stream = get_data_stream() |
|
619 | data_stream = get_data_stream() | |
620 | next(data_stream) |
|
620 | next(data_stream) | |
621 | return [ |
|
621 | return [ | |
622 | (self._datafile, data_stream, data_size), |
|
622 | (self._datafile, data_stream, data_size), | |
623 | (self._indexfile, index_stream, index_size), |
|
623 | (self._indexfile, index_stream, index_size), | |
624 | ] |
|
624 | ] | |
625 |
|
625 | |||
626 | def _loadindex(self, docket=None): |
|
626 | def _loadindex(self, docket=None): | |
627 |
|
627 | |||
628 | new_header, mmapindexthreshold, force_nodemap = self._init_opts() |
|
628 | new_header, mmapindexthreshold, force_nodemap = self._init_opts() | |
629 |
|
629 | |||
630 | if self.postfix is not None: |
|
630 | if self.postfix is not None: | |
631 | entry_point = b'%s.i.%s' % (self.radix, self.postfix) |
|
631 | entry_point = b'%s.i.%s' % (self.radix, self.postfix) | |
632 | elif self._trypending and self.opener.exists(b'%s.i.a' % self.radix): |
|
632 | elif self._trypending and self.opener.exists(b'%s.i.a' % self.radix): | |
633 | entry_point = b'%s.i.a' % self.radix |
|
633 | entry_point = b'%s.i.a' % self.radix | |
634 | elif self._try_split and self.opener.exists(self._split_index_file): |
|
634 | elif self._try_split and self.opener.exists(self._split_index_file): | |
635 | entry_point = self._split_index_file |
|
635 | entry_point = self._split_index_file | |
636 | else: |
|
636 | else: | |
637 | entry_point = b'%s.i' % self.radix |
|
637 | entry_point = b'%s.i' % self.radix | |
638 |
|
638 | |||
639 | if docket is not None: |
|
639 | if docket is not None: | |
640 | self._docket = docket |
|
640 | self._docket = docket | |
641 | self._docket_file = entry_point |
|
641 | self._docket_file = entry_point | |
642 | else: |
|
642 | else: | |
643 | self._initempty = True |
|
643 | self._initempty = True | |
644 | entry_data = self._get_data(entry_point, mmapindexthreshold) |
|
644 | entry_data = self._get_data(entry_point, mmapindexthreshold) | |
645 | if len(entry_data) > 0: |
|
645 | if len(entry_data) > 0: | |
646 | header = INDEX_HEADER.unpack(entry_data[:4])[0] |
|
646 | header = INDEX_HEADER.unpack(entry_data[:4])[0] | |
647 | self._initempty = False |
|
647 | self._initempty = False | |
648 | else: |
|
648 | else: | |
649 | header = new_header |
|
649 | header = new_header | |
650 |
|
650 | |||
651 | self._format_flags = header & ~0xFFFF |
|
651 | self._format_flags = header & ~0xFFFF | |
652 | self._format_version = header & 0xFFFF |
|
652 | self._format_version = header & 0xFFFF | |
653 |
|
653 | |||
654 | supported_flags = SUPPORTED_FLAGS.get(self._format_version) |
|
654 | supported_flags = SUPPORTED_FLAGS.get(self._format_version) | |
655 | if supported_flags is None: |
|
655 | if supported_flags is None: | |
656 | msg = _(b'unknown version (%d) in revlog %s') |
|
656 | msg = _(b'unknown version (%d) in revlog %s') | |
657 | msg %= (self._format_version, self.display_id) |
|
657 | msg %= (self._format_version, self.display_id) | |
658 | raise error.RevlogError(msg) |
|
658 | raise error.RevlogError(msg) | |
659 | elif self._format_flags & ~supported_flags: |
|
659 | elif self._format_flags & ~supported_flags: | |
660 | msg = _(b'unknown flags (%#04x) in version %d revlog %s') |
|
660 | msg = _(b'unknown flags (%#04x) in version %d revlog %s') | |
661 | display_flag = self._format_flags >> 16 |
|
661 | display_flag = self._format_flags >> 16 | |
662 | msg %= (display_flag, self._format_version, self.display_id) |
|
662 | msg %= (display_flag, self._format_version, self.display_id) | |
663 | raise error.RevlogError(msg) |
|
663 | raise error.RevlogError(msg) | |
664 |
|
664 | |||
665 | features = FEATURES_BY_VERSION[self._format_version] |
|
665 | features = FEATURES_BY_VERSION[self._format_version] | |
666 | self._inline = features[b'inline'](self._format_flags) |
|
666 | self._inline = features[b'inline'](self._format_flags) | |
667 | self._generaldelta = features[b'generaldelta'](self._format_flags) |
|
667 | self._generaldelta = features[b'generaldelta'](self._format_flags) | |
668 | self.hassidedata = features[b'sidedata'] |
|
668 | self.hassidedata = features[b'sidedata'] | |
669 |
|
669 | |||
670 | if not features[b'docket']: |
|
670 | if not features[b'docket']: | |
671 | self._indexfile = entry_point |
|
671 | self._indexfile = entry_point | |
672 | index_data = entry_data |
|
672 | index_data = entry_data | |
673 | else: |
|
673 | else: | |
674 | self._docket_file = entry_point |
|
674 | self._docket_file = entry_point | |
675 | if self._initempty: |
|
675 | if self._initempty: | |
676 | self._docket = docketutil.default_docket(self, header) |
|
676 | self._docket = docketutil.default_docket(self, header) | |
677 | else: |
|
677 | else: | |
678 | self._docket = docketutil.parse_docket( |
|
678 | self._docket = docketutil.parse_docket( | |
679 | self, entry_data, use_pending=self._trypending |
|
679 | self, entry_data, use_pending=self._trypending | |
680 | ) |
|
680 | ) | |
681 |
|
681 | |||
682 | if self._docket is not None: |
|
682 | if self._docket is not None: | |
683 | self._indexfile = self._docket.index_filepath() |
|
683 | self._indexfile = self._docket.index_filepath() | |
684 | index_data = b'' |
|
684 | index_data = b'' | |
685 | index_size = self._docket.index_end |
|
685 | index_size = self._docket.index_end | |
686 | if index_size > 0: |
|
686 | if index_size > 0: | |
687 | index_data = self._get_data( |
|
687 | index_data = self._get_data( | |
688 | self._indexfile, mmapindexthreshold, size=index_size |
|
688 | self._indexfile, mmapindexthreshold, size=index_size | |
689 | ) |
|
689 | ) | |
690 | if len(index_data) < index_size: |
|
690 | if len(index_data) < index_size: | |
691 | msg = _(b'too few index data for %s: got %d, expected %d') |
|
691 | msg = _(b'too few index data for %s: got %d, expected %d') | |
692 | msg %= (self.display_id, len(index_data), index_size) |
|
692 | msg %= (self.display_id, len(index_data), index_size) | |
693 | raise error.RevlogError(msg) |
|
693 | raise error.RevlogError(msg) | |
694 |
|
694 | |||
695 | self._inline = False |
|
695 | self._inline = False | |
696 | # generaldelta implied by version 2 revlogs. |
|
696 | # generaldelta implied by version 2 revlogs. | |
697 | self._generaldelta = True |
|
697 | self._generaldelta = True | |
698 | # the logic for persistent nodemap will be dealt with within the |
|
698 | # the logic for persistent nodemap will be dealt with within the | |
699 | # main docket, so disable it for now. |
|
699 | # main docket, so disable it for now. | |
700 | self._nodemap_file = None |
|
700 | self._nodemap_file = None | |
701 |
|
701 | |||
702 | if self._docket is not None: |
|
702 | if self._docket is not None: | |
703 | self._datafile = self._docket.data_filepath() |
|
703 | self._datafile = self._docket.data_filepath() | |
704 | self._sidedatafile = self._docket.sidedata_filepath() |
|
704 | self._sidedatafile = self._docket.sidedata_filepath() | |
705 | elif self.postfix is None: |
|
705 | elif self.postfix is None: | |
706 | self._datafile = b'%s.d' % self.radix |
|
706 | self._datafile = b'%s.d' % self.radix | |
707 | else: |
|
707 | else: | |
708 | self._datafile = b'%s.d.%s' % (self.radix, self.postfix) |
|
708 | self._datafile = b'%s.d.%s' % (self.radix, self.postfix) | |
709 |
|
709 | |||
710 | self.nodeconstants = sha1nodeconstants |
|
710 | self.nodeconstants = sha1nodeconstants | |
711 | self.nullid = self.nodeconstants.nullid |
|
711 | self.nullid = self.nodeconstants.nullid | |
712 |
|
712 | |||
713 | # sparse-revlog can't be on without general-delta (issue6056) |
|
713 | # sparse-revlog can't be on without general-delta (issue6056) | |
714 | if not self._generaldelta: |
|
714 | if not self._generaldelta: | |
715 | self._sparserevlog = False |
|
715 | self._sparserevlog = False | |
716 |
|
716 | |||
717 | self._storedeltachains = True |
|
717 | self._storedeltachains = True | |
718 |
|
718 | |||
719 | devel_nodemap = ( |
|
719 | devel_nodemap = ( | |
720 | self._nodemap_file |
|
720 | self._nodemap_file | |
721 | and force_nodemap |
|
721 | and force_nodemap | |
722 | and parse_index_v1_nodemap is not None |
|
722 | and parse_index_v1_nodemap is not None | |
723 | ) |
|
723 | ) | |
724 |
|
724 | |||
725 | use_rust_index = False |
|
725 | use_rust_index = False | |
726 | if rustrevlog is not None: |
|
726 | if rustrevlog is not None: | |
727 | if self._nodemap_file is not None: |
|
727 | if self._nodemap_file is not None: | |
728 | use_rust_index = True |
|
728 | use_rust_index = True | |
729 | else: |
|
729 | else: | |
730 | use_rust_index = self.opener.options.get(b'rust.index') |
|
730 | use_rust_index = self.opener.options.get(b'rust.index') | |
731 |
|
731 | |||
732 | self._parse_index = parse_index_v1 |
|
732 | self._parse_index = parse_index_v1 | |
733 | if self._format_version == REVLOGV0: |
|
733 | if self._format_version == REVLOGV0: | |
734 | self._parse_index = revlogv0.parse_index_v0 |
|
734 | self._parse_index = revlogv0.parse_index_v0 | |
735 | elif self._format_version == REVLOGV2: |
|
735 | elif self._format_version == REVLOGV2: | |
736 | self._parse_index = parse_index_v2 |
|
736 | self._parse_index = parse_index_v2 | |
737 | elif self._format_version == CHANGELOGV2: |
|
737 | elif self._format_version == CHANGELOGV2: | |
738 | self._parse_index = parse_index_cl_v2 |
|
738 | self._parse_index = parse_index_cl_v2 | |
739 | elif devel_nodemap: |
|
739 | elif devel_nodemap: | |
740 | self._parse_index = parse_index_v1_nodemap |
|
740 | self._parse_index = parse_index_v1_nodemap | |
741 | elif use_rust_index: |
|
741 | elif use_rust_index: | |
742 | self._parse_index = parse_index_v1_mixed |
|
742 | self._parse_index = parse_index_v1_mixed | |
743 | try: |
|
743 | try: | |
744 | d = self._parse_index(index_data, self._inline) |
|
744 | d = self._parse_index(index_data, self._inline) | |
745 | index, chunkcache = d |
|
745 | index, chunkcache = d | |
746 | use_nodemap = ( |
|
746 | use_nodemap = ( | |
747 | not self._inline |
|
747 | not self._inline | |
748 | and self._nodemap_file is not None |
|
748 | and self._nodemap_file is not None | |
749 | and hasattr(index, 'update_nodemap_data') |
|
749 | and hasattr(index, 'update_nodemap_data') | |
750 | ) |
|
750 | ) | |
751 | if use_nodemap: |
|
751 | if use_nodemap: | |
752 | nodemap_data = nodemaputil.persisted_data(self) |
|
752 | nodemap_data = nodemaputil.persisted_data(self) | |
753 | if nodemap_data is not None: |
|
753 | if nodemap_data is not None: | |
754 | docket = nodemap_data[0] |
|
754 | docket = nodemap_data[0] | |
755 | if ( |
|
755 | if ( | |
756 | len(d[0]) > docket.tip_rev |
|
756 | len(d[0]) > docket.tip_rev | |
757 | and d[0][docket.tip_rev][7] == docket.tip_node |
|
757 | and d[0][docket.tip_rev][7] == docket.tip_node | |
758 | ): |
|
758 | ): | |
759 | # no changelog tampering |
|
759 | # no changelog tampering | |
760 | self._nodemap_docket = docket |
|
760 | self._nodemap_docket = docket | |
761 | index.update_nodemap_data(*nodemap_data) |
|
761 | index.update_nodemap_data(*nodemap_data) | |
762 | except (ValueError, IndexError): |
|
762 | except (ValueError, IndexError): | |
763 | raise error.RevlogError( |
|
763 | raise error.RevlogError( | |
764 | _(b"index %s is corrupted") % self.display_id |
|
764 | _(b"index %s is corrupted") % self.display_id | |
765 | ) |
|
765 | ) | |
766 | self.index = index |
|
766 | self.index = index | |
767 | self._segmentfile = randomaccessfile.randomaccessfile( |
|
767 | self._segmentfile = randomaccessfile.randomaccessfile( | |
768 | self.opener, |
|
768 | self.opener, | |
769 | (self._indexfile if self._inline else self._datafile), |
|
769 | (self._indexfile if self._inline else self._datafile), | |
770 | self._chunkcachesize, |
|
770 | self._chunkcachesize, | |
771 | chunkcache, |
|
771 | chunkcache, | |
772 | ) |
|
772 | ) | |
773 | self._segmentfile_sidedata = randomaccessfile.randomaccessfile( |
|
773 | self._segmentfile_sidedata = randomaccessfile.randomaccessfile( | |
774 | self.opener, |
|
774 | self.opener, | |
775 | self._sidedatafile, |
|
775 | self._sidedatafile, | |
776 | self._chunkcachesize, |
|
776 | self._chunkcachesize, | |
777 | ) |
|
777 | ) | |
778 | # revnum -> (chain-length, sum-delta-length) |
|
778 | # revnum -> (chain-length, sum-delta-length) | |
779 | self._chaininfocache = util.lrucachedict(500) |
|
779 | self._chaininfocache = util.lrucachedict(500) | |
780 | # revlog header -> revlog compressor |
|
780 | # revlog header -> revlog compressor | |
781 | self._decompressors = {} |
|
781 | self._decompressors = {} | |
782 |
|
782 | |||
783 | def get_revlog(self): |
|
783 | def get_revlog(self): | |
784 | """simple function to mirror API of other not-really-revlog API""" |
|
784 | """simple function to mirror API of other not-really-revlog API""" | |
785 | return self |
|
785 | return self | |
786 |
|
786 | |||
787 | @util.propertycache |
|
787 | @util.propertycache | |
788 | def revlog_kind(self): |
|
788 | def revlog_kind(self): | |
789 | return self.target[0] |
|
789 | return self.target[0] | |
790 |
|
790 | |||
791 | @util.propertycache |
|
791 | @util.propertycache | |
792 | def display_id(self): |
|
792 | def display_id(self): | |
793 | """The public facing "ID" of the revlog that we use in message""" |
|
793 | """The public facing "ID" of the revlog that we use in message""" | |
794 | if self.revlog_kind == KIND_FILELOG: |
|
794 | if self.revlog_kind == KIND_FILELOG: | |
795 | # Reference the file without the "data/" prefix, so it is familiar |
|
795 | # Reference the file without the "data/" prefix, so it is familiar | |
796 | # to the user. |
|
796 | # to the user. | |
797 | return self.target[1] |
|
797 | return self.target[1] | |
798 | else: |
|
798 | else: | |
799 | return self.radix |
|
799 | return self.radix | |
800 |
|
800 | |||
801 | def _get_decompressor(self, t): |
|
801 | def _get_decompressor(self, t): | |
802 | try: |
|
802 | try: | |
803 | compressor = self._decompressors[t] |
|
803 | compressor = self._decompressors[t] | |
804 | except KeyError: |
|
804 | except KeyError: | |
805 | try: |
|
805 | try: | |
806 | engine = util.compengines.forrevlogheader(t) |
|
806 | engine = util.compengines.forrevlogheader(t) | |
807 | compressor = engine.revlogcompressor(self._compengineopts) |
|
807 | compressor = engine.revlogcompressor(self._compengineopts) | |
808 | self._decompressors[t] = compressor |
|
808 | self._decompressors[t] = compressor | |
809 | except KeyError: |
|
809 | except KeyError: | |
810 | raise error.RevlogError( |
|
810 | raise error.RevlogError( | |
811 | _(b'unknown compression type %s') % binascii.hexlify(t) |
|
811 | _(b'unknown compression type %s') % binascii.hexlify(t) | |
812 | ) |
|
812 | ) | |
813 | return compressor |
|
813 | return compressor | |
814 |
|
814 | |||
815 | @util.propertycache |
|
815 | @util.propertycache | |
816 | def _compressor(self): |
|
816 | def _compressor(self): | |
817 | engine = util.compengines[self._compengine] |
|
817 | engine = util.compengines[self._compengine] | |
818 | return engine.revlogcompressor(self._compengineopts) |
|
818 | return engine.revlogcompressor(self._compengineopts) | |
819 |
|
819 | |||
820 | @util.propertycache |
|
820 | @util.propertycache | |
821 | def _decompressor(self): |
|
821 | def _decompressor(self): | |
822 | """the default decompressor""" |
|
822 | """the default decompressor""" | |
823 | if self._docket is None: |
|
823 | if self._docket is None: | |
824 | return None |
|
824 | return None | |
825 | t = self._docket.default_compression_header |
|
825 | t = self._docket.default_compression_header | |
826 | c = self._get_decompressor(t) |
|
826 | c = self._get_decompressor(t) | |
827 | return c.decompress |
|
827 | return c.decompress | |
828 |
|
828 | |||
829 | def _indexfp(self): |
|
829 | def _indexfp(self): | |
830 | """file object for the revlog's index file""" |
|
830 | """file object for the revlog's index file""" | |
831 | return self.opener(self._indexfile, mode=b"r") |
|
831 | return self.opener(self._indexfile, mode=b"r") | |
832 |
|
832 | |||
833 | def __index_write_fp(self): |
|
833 | def __index_write_fp(self): | |
834 | # You should not use this directly and use `_writing` instead |
|
834 | # You should not use this directly and use `_writing` instead | |
835 | try: |
|
835 | try: | |
836 | f = self.opener( |
|
836 | f = self.opener( | |
837 | self._indexfile, mode=b"r+", checkambig=self._checkambig |
|
837 | self._indexfile, mode=b"r+", checkambig=self._checkambig | |
838 | ) |
|
838 | ) | |
839 | if self._docket is None: |
|
839 | if self._docket is None: | |
840 | f.seek(0, os.SEEK_END) |
|
840 | f.seek(0, os.SEEK_END) | |
841 | else: |
|
841 | else: | |
842 | f.seek(self._docket.index_end, os.SEEK_SET) |
|
842 | f.seek(self._docket.index_end, os.SEEK_SET) | |
843 | return f |
|
843 | return f | |
844 | except FileNotFoundError: |
|
844 | except FileNotFoundError: | |
845 | return self.opener( |
|
845 | return self.opener( | |
846 | self._indexfile, mode=b"w+", checkambig=self._checkambig |
|
846 | self._indexfile, mode=b"w+", checkambig=self._checkambig | |
847 | ) |
|
847 | ) | |
848 |
|
848 | |||
849 | def __index_new_fp(self): |
|
849 | def __index_new_fp(self): | |
850 | # You should not use this unless you are upgrading from inline revlog |
|
850 | # You should not use this unless you are upgrading from inline revlog | |
851 | return self.opener( |
|
851 | return self.opener( | |
852 | self._indexfile, |
|
852 | self._indexfile, | |
853 | mode=b"w", |
|
853 | mode=b"w", | |
854 | checkambig=self._checkambig, |
|
854 | checkambig=self._checkambig, | |
855 | atomictemp=True, |
|
855 | atomictemp=True, | |
856 | ) |
|
856 | ) | |
857 |
|
857 | |||
858 | def _datafp(self, mode=b'r'): |
|
858 | def _datafp(self, mode=b'r'): | |
859 | """file object for the revlog's data file""" |
|
859 | """file object for the revlog's data file""" | |
860 | return self.opener(self._datafile, mode=mode) |
|
860 | return self.opener(self._datafile, mode=mode) | |
861 |
|
861 | |||
862 | @contextlib.contextmanager |
|
862 | @contextlib.contextmanager | |
863 | def _sidedatareadfp(self): |
|
863 | def _sidedatareadfp(self): | |
864 | """file object suitable to read sidedata""" |
|
864 | """file object suitable to read sidedata""" | |
865 | if self._writinghandles: |
|
865 | if self._writinghandles: | |
866 | yield self._writinghandles[2] |
|
866 | yield self._writinghandles[2] | |
867 | else: |
|
867 | else: | |
868 | with self.opener(self._sidedatafile) as fp: |
|
868 | with self.opener(self._sidedatafile) as fp: | |
869 | yield fp |
|
869 | yield fp | |
870 |
|
870 | |||
871 | def tiprev(self): |
|
871 | def tiprev(self): | |
872 | return len(self.index) - 1 |
|
872 | return len(self.index) - 1 | |
873 |
|
873 | |||
874 | def tip(self): |
|
874 | def tip(self): | |
875 | return self.node(self.tiprev()) |
|
875 | return self.node(self.tiprev()) | |
876 |
|
876 | |||
877 | def __contains__(self, rev): |
|
877 | def __contains__(self, rev): | |
878 | return 0 <= rev < len(self) |
|
878 | return 0 <= rev < len(self) | |
879 |
|
879 | |||
880 | def __len__(self): |
|
880 | def __len__(self): | |
881 | return len(self.index) |
|
881 | return len(self.index) | |
882 |
|
882 | |||
883 | def __iter__(self): |
|
883 | def __iter__(self): | |
884 | return iter(range(len(self))) |
|
884 | return iter(range(len(self))) | |
885 |
|
885 | |||
886 | def revs(self, start=0, stop=None): |
|
886 | def revs(self, start=0, stop=None): | |
887 | """iterate over all rev in this revlog (from start to stop)""" |
|
887 | """iterate over all rev in this revlog (from start to stop)""" | |
888 | return storageutil.iterrevs(len(self), start=start, stop=stop) |
|
888 | return storageutil.iterrevs(len(self), start=start, stop=stop) | |
889 |
|
889 | |||
890 | def hasnode(self, node): |
|
890 | def hasnode(self, node): | |
891 | try: |
|
891 | try: | |
892 | self.rev(node) |
|
892 | self.rev(node) | |
893 | return True |
|
893 | return True | |
894 | except KeyError: |
|
894 | except KeyError: | |
895 | return False |
|
895 | return False | |
896 |
|
896 | |||
897 | def _candelta(self, baserev, rev): |
|
897 | def _candelta(self, baserev, rev): | |
898 | """whether two revisions (baserev, rev) can be delta-ed or not""" |
|
898 | """whether two revisions (baserev, rev) can be delta-ed or not""" | |
899 | # Disable delta if either rev requires a content-changing flag |
|
899 | # Disable delta if either rev requires a content-changing flag | |
900 | # processor (ex. LFS). This is because such flag processor can alter |
|
900 | # processor (ex. LFS). This is because such flag processor can alter | |
901 | # the rawtext content that the delta will be based on, and two clients |
|
901 | # the rawtext content that the delta will be based on, and two clients | |
902 | # could have a same revlog node with different flags (i.e. different |
|
902 | # could have a same revlog node with different flags (i.e. different | |
903 | # rawtext contents) and the delta could be incompatible. |
|
903 | # rawtext contents) and the delta could be incompatible. | |
904 | if (self.flags(baserev) & REVIDX_RAWTEXT_CHANGING_FLAGS) or ( |
|
904 | if (self.flags(baserev) & REVIDX_RAWTEXT_CHANGING_FLAGS) or ( | |
905 | self.flags(rev) & REVIDX_RAWTEXT_CHANGING_FLAGS |
|
905 | self.flags(rev) & REVIDX_RAWTEXT_CHANGING_FLAGS | |
906 | ): |
|
906 | ): | |
907 | return False |
|
907 | return False | |
908 | return True |
|
908 | return True | |
909 |
|
909 | |||
910 | def update_caches(self, transaction): |
|
910 | def update_caches(self, transaction): | |
911 | """update on disk cache |
|
911 | """update on disk cache | |
912 |
|
912 | |||
913 | If a transaction is passed, the update may be delayed to transaction |
|
913 | If a transaction is passed, the update may be delayed to transaction | |
914 | commit.""" |
|
914 | commit.""" | |
915 | if self._nodemap_file is not None: |
|
915 | if self._nodemap_file is not None: | |
916 | if transaction is None: |
|
916 | if transaction is None: | |
917 | nodemaputil.update_persistent_nodemap(self) |
|
917 | nodemaputil.update_persistent_nodemap(self) | |
918 | else: |
|
918 | else: | |
919 | nodemaputil.setup_persistent_nodemap(transaction, self) |
|
919 | nodemaputil.setup_persistent_nodemap(transaction, self) | |
920 |
|
920 | |||
921 | def clearcaches(self): |
|
921 | def clearcaches(self): | |
|
922 | """Clear in-memory caches""" | |||
922 | self._revisioncache = None |
|
923 | self._revisioncache = None | |
923 | self._chainbasecache.clear() |
|
924 | self._chainbasecache.clear() | |
924 | self._segmentfile.clear_cache() |
|
925 | self._segmentfile.clear_cache() | |
925 | self._segmentfile_sidedata.clear_cache() |
|
926 | self._segmentfile_sidedata.clear_cache() | |
926 | self._pcache = {} |
|
927 | self._pcache = {} | |
927 | self._nodemap_docket = None |
|
928 | self._nodemap_docket = None | |
928 | self.index.clearcaches() |
|
929 | self.index.clearcaches() | |
929 | # The python code is the one responsible for validating the docket, we |
|
930 | # The python code is the one responsible for validating the docket, we | |
930 | # end up having to refresh it here. |
|
931 | # end up having to refresh it here. | |
931 | use_nodemap = ( |
|
932 | use_nodemap = ( | |
932 | not self._inline |
|
933 | not self._inline | |
933 | and self._nodemap_file is not None |
|
934 | and self._nodemap_file is not None | |
934 | and hasattr(self.index, 'update_nodemap_data') |
|
935 | and hasattr(self.index, 'update_nodemap_data') | |
935 | ) |
|
936 | ) | |
936 | if use_nodemap: |
|
937 | if use_nodemap: | |
937 | nodemap_data = nodemaputil.persisted_data(self) |
|
938 | nodemap_data = nodemaputil.persisted_data(self) | |
938 | if nodemap_data is not None: |
|
939 | if nodemap_data is not None: | |
939 | self._nodemap_docket = nodemap_data[0] |
|
940 | self._nodemap_docket = nodemap_data[0] | |
940 | self.index.update_nodemap_data(*nodemap_data) |
|
941 | self.index.update_nodemap_data(*nodemap_data) | |
941 |
|
942 | |||
942 | def rev(self, node): |
|
943 | def rev(self, node): | |
943 | try: |
|
944 | try: | |
944 | return self.index.rev(node) |
|
945 | return self.index.rev(node) | |
945 | except TypeError: |
|
946 | except TypeError: | |
946 | raise |
|
947 | raise | |
947 | except error.RevlogError: |
|
948 | except error.RevlogError: | |
948 | # parsers.c radix tree lookup failed |
|
949 | # parsers.c radix tree lookup failed | |
949 | if ( |
|
950 | if ( | |
950 | node == self.nodeconstants.wdirid |
|
951 | node == self.nodeconstants.wdirid | |
951 | or node in self.nodeconstants.wdirfilenodeids |
|
952 | or node in self.nodeconstants.wdirfilenodeids | |
952 | ): |
|
953 | ): | |
953 | raise error.WdirUnsupported |
|
954 | raise error.WdirUnsupported | |
954 | raise error.LookupError(node, self.display_id, _(b'no node')) |
|
955 | raise error.LookupError(node, self.display_id, _(b'no node')) | |
955 |
|
956 | |||
956 | # Accessors for index entries. |
|
957 | # Accessors for index entries. | |
957 |
|
958 | |||
958 | # First tuple entry is 8 bytes. First 6 bytes are offset. Last 2 bytes |
|
959 | # First tuple entry is 8 bytes. First 6 bytes are offset. Last 2 bytes | |
959 | # are flags. |
|
960 | # are flags. | |
960 | def start(self, rev): |
|
961 | def start(self, rev): | |
961 | return int(self.index[rev][0] >> 16) |
|
962 | return int(self.index[rev][0] >> 16) | |
962 |
|
963 | |||
963 | def sidedata_cut_off(self, rev): |
|
964 | def sidedata_cut_off(self, rev): | |
964 | sd_cut_off = self.index[rev][8] |
|
965 | sd_cut_off = self.index[rev][8] | |
965 | if sd_cut_off != 0: |
|
966 | if sd_cut_off != 0: | |
966 | return sd_cut_off |
|
967 | return sd_cut_off | |
967 | # This is some annoying dance, because entries without sidedata |
|
968 | # This is some annoying dance, because entries without sidedata | |
968 | # currently use 0 as their ofsset. (instead of previous-offset + |
|
969 | # currently use 0 as their ofsset. (instead of previous-offset + | |
969 | # previous-size) |
|
970 | # previous-size) | |
970 | # |
|
971 | # | |
971 | # We should reconsider this sidedata β 0 sidata_offset policy. |
|
972 | # We should reconsider this sidedata β 0 sidata_offset policy. | |
972 | # In the meantime, we need this. |
|
973 | # In the meantime, we need this. | |
973 | while 0 <= rev: |
|
974 | while 0 <= rev: | |
974 | e = self.index[rev] |
|
975 | e = self.index[rev] | |
975 | if e[9] != 0: |
|
976 | if e[9] != 0: | |
976 | return e[8] + e[9] |
|
977 | return e[8] + e[9] | |
977 | rev -= 1 |
|
978 | rev -= 1 | |
978 | return 0 |
|
979 | return 0 | |
979 |
|
980 | |||
980 | def flags(self, rev): |
|
981 | def flags(self, rev): | |
981 | return self.index[rev][0] & 0xFFFF |
|
982 | return self.index[rev][0] & 0xFFFF | |
982 |
|
983 | |||
983 | def length(self, rev): |
|
984 | def length(self, rev): | |
984 | return self.index[rev][1] |
|
985 | return self.index[rev][1] | |
985 |
|
986 | |||
986 | def sidedata_length(self, rev): |
|
987 | def sidedata_length(self, rev): | |
987 | if not self.hassidedata: |
|
988 | if not self.hassidedata: | |
988 | return 0 |
|
989 | return 0 | |
989 | return self.index[rev][9] |
|
990 | return self.index[rev][9] | |
990 |
|
991 | |||
991 | def rawsize(self, rev): |
|
992 | def rawsize(self, rev): | |
992 | """return the length of the uncompressed text for a given revision""" |
|
993 | """return the length of the uncompressed text for a given revision""" | |
993 | l = self.index[rev][2] |
|
994 | l = self.index[rev][2] | |
994 | if l >= 0: |
|
995 | if l >= 0: | |
995 | return l |
|
996 | return l | |
996 |
|
997 | |||
997 | t = self.rawdata(rev) |
|
998 | t = self.rawdata(rev) | |
998 | return len(t) |
|
999 | return len(t) | |
999 |
|
1000 | |||
1000 | def size(self, rev): |
|
1001 | def size(self, rev): | |
1001 | """length of non-raw text (processed by a "read" flag processor)""" |
|
1002 | """length of non-raw text (processed by a "read" flag processor)""" | |
1002 | # fast path: if no "read" flag processor could change the content, |
|
1003 | # fast path: if no "read" flag processor could change the content, | |
1003 | # size is rawsize. note: ELLIPSIS is known to not change the content. |
|
1004 | # size is rawsize. note: ELLIPSIS is known to not change the content. | |
1004 | flags = self.flags(rev) |
|
1005 | flags = self.flags(rev) | |
1005 | if flags & (flagutil.REVIDX_KNOWN_FLAGS ^ REVIDX_ELLIPSIS) == 0: |
|
1006 | if flags & (flagutil.REVIDX_KNOWN_FLAGS ^ REVIDX_ELLIPSIS) == 0: | |
1006 | return self.rawsize(rev) |
|
1007 | return self.rawsize(rev) | |
1007 |
|
1008 | |||
1008 | return len(self.revision(rev)) |
|
1009 | return len(self.revision(rev)) | |
1009 |
|
1010 | |||
1010 | def fast_rank(self, rev): |
|
1011 | def fast_rank(self, rev): | |
1011 | """Return the rank of a revision if already known, or None otherwise. |
|
1012 | """Return the rank of a revision if already known, or None otherwise. | |
1012 |
|
1013 | |||
1013 | The rank of a revision is the size of the sub-graph it defines as a |
|
1014 | The rank of a revision is the size of the sub-graph it defines as a | |
1014 | head. Equivalently, the rank of a revision `r` is the size of the set |
|
1015 | head. Equivalently, the rank of a revision `r` is the size of the set | |
1015 | `ancestors(r)`, `r` included. |
|
1016 | `ancestors(r)`, `r` included. | |
1016 |
|
1017 | |||
1017 | This method returns the rank retrieved from the revlog in constant |
|
1018 | This method returns the rank retrieved from the revlog in constant | |
1018 | time. It makes no attempt at computing unknown values for versions of |
|
1019 | time. It makes no attempt at computing unknown values for versions of | |
1019 | the revlog which do not persist the rank. |
|
1020 | the revlog which do not persist the rank. | |
1020 | """ |
|
1021 | """ | |
1021 | rank = self.index[rev][ENTRY_RANK] |
|
1022 | rank = self.index[rev][ENTRY_RANK] | |
1022 | if self._format_version != CHANGELOGV2 or rank == RANK_UNKNOWN: |
|
1023 | if self._format_version != CHANGELOGV2 or rank == RANK_UNKNOWN: | |
1023 | return None |
|
1024 | return None | |
1024 | if rev == nullrev: |
|
1025 | if rev == nullrev: | |
1025 | return 0 # convention |
|
1026 | return 0 # convention | |
1026 | return rank |
|
1027 | return rank | |
1027 |
|
1028 | |||
1028 | def chainbase(self, rev): |
|
1029 | def chainbase(self, rev): | |
1029 | base = self._chainbasecache.get(rev) |
|
1030 | base = self._chainbasecache.get(rev) | |
1030 | if base is not None: |
|
1031 | if base is not None: | |
1031 | return base |
|
1032 | return base | |
1032 |
|
1033 | |||
1033 | index = self.index |
|
1034 | index = self.index | |
1034 | iterrev = rev |
|
1035 | iterrev = rev | |
1035 | base = index[iterrev][3] |
|
1036 | base = index[iterrev][3] | |
1036 | while base != iterrev: |
|
1037 | while base != iterrev: | |
1037 | iterrev = base |
|
1038 | iterrev = base | |
1038 | base = index[iterrev][3] |
|
1039 | base = index[iterrev][3] | |
1039 |
|
1040 | |||
1040 | self._chainbasecache[rev] = base |
|
1041 | self._chainbasecache[rev] = base | |
1041 | return base |
|
1042 | return base | |
1042 |
|
1043 | |||
1043 | def linkrev(self, rev): |
|
1044 | def linkrev(self, rev): | |
1044 | return self.index[rev][4] |
|
1045 | return self.index[rev][4] | |
1045 |
|
1046 | |||
1046 | def parentrevs(self, rev): |
|
1047 | def parentrevs(self, rev): | |
1047 | try: |
|
1048 | try: | |
1048 | entry = self.index[rev] |
|
1049 | entry = self.index[rev] | |
1049 | except IndexError: |
|
1050 | except IndexError: | |
1050 | if rev == wdirrev: |
|
1051 | if rev == wdirrev: | |
1051 | raise error.WdirUnsupported |
|
1052 | raise error.WdirUnsupported | |
1052 | raise |
|
1053 | raise | |
1053 |
|
1054 | |||
1054 | if self.canonical_parent_order and entry[5] == nullrev: |
|
1055 | if self.canonical_parent_order and entry[5] == nullrev: | |
1055 | return entry[6], entry[5] |
|
1056 | return entry[6], entry[5] | |
1056 | else: |
|
1057 | else: | |
1057 | return entry[5], entry[6] |
|
1058 | return entry[5], entry[6] | |
1058 |
|
1059 | |||
1059 | # fast parentrevs(rev) where rev isn't filtered |
|
1060 | # fast parentrevs(rev) where rev isn't filtered | |
1060 | _uncheckedparentrevs = parentrevs |
|
1061 | _uncheckedparentrevs = parentrevs | |
1061 |
|
1062 | |||
1062 | def node(self, rev): |
|
1063 | def node(self, rev): | |
1063 | try: |
|
1064 | try: | |
1064 | return self.index[rev][7] |
|
1065 | return self.index[rev][7] | |
1065 | except IndexError: |
|
1066 | except IndexError: | |
1066 | if rev == wdirrev: |
|
1067 | if rev == wdirrev: | |
1067 | raise error.WdirUnsupported |
|
1068 | raise error.WdirUnsupported | |
1068 | raise |
|
1069 | raise | |
1069 |
|
1070 | |||
1070 | # Derived from index values. |
|
1071 | # Derived from index values. | |
1071 |
|
1072 | |||
1072 | def end(self, rev): |
|
1073 | def end(self, rev): | |
1073 | return self.start(rev) + self.length(rev) |
|
1074 | return self.start(rev) + self.length(rev) | |
1074 |
|
1075 | |||
1075 | def parents(self, node): |
|
1076 | def parents(self, node): | |
1076 | i = self.index |
|
1077 | i = self.index | |
1077 | d = i[self.rev(node)] |
|
1078 | d = i[self.rev(node)] | |
1078 | # inline node() to avoid function call overhead |
|
1079 | # inline node() to avoid function call overhead | |
1079 | if self.canonical_parent_order and d[5] == self.nullid: |
|
1080 | if self.canonical_parent_order and d[5] == self.nullid: | |
1080 | return i[d[6]][7], i[d[5]][7] |
|
1081 | return i[d[6]][7], i[d[5]][7] | |
1081 | else: |
|
1082 | else: | |
1082 | return i[d[5]][7], i[d[6]][7] |
|
1083 | return i[d[5]][7], i[d[6]][7] | |
1083 |
|
1084 | |||
1084 | def chainlen(self, rev): |
|
1085 | def chainlen(self, rev): | |
1085 | return self._chaininfo(rev)[0] |
|
1086 | return self._chaininfo(rev)[0] | |
1086 |
|
1087 | |||
1087 | def _chaininfo(self, rev): |
|
1088 | def _chaininfo(self, rev): | |
1088 | chaininfocache = self._chaininfocache |
|
1089 | chaininfocache = self._chaininfocache | |
1089 | if rev in chaininfocache: |
|
1090 | if rev in chaininfocache: | |
1090 | return chaininfocache[rev] |
|
1091 | return chaininfocache[rev] | |
1091 | index = self.index |
|
1092 | index = self.index | |
1092 | generaldelta = self._generaldelta |
|
1093 | generaldelta = self._generaldelta | |
1093 | iterrev = rev |
|
1094 | iterrev = rev | |
1094 | e = index[iterrev] |
|
1095 | e = index[iterrev] | |
1095 | clen = 0 |
|
1096 | clen = 0 | |
1096 | compresseddeltalen = 0 |
|
1097 | compresseddeltalen = 0 | |
1097 | while iterrev != e[3]: |
|
1098 | while iterrev != e[3]: | |
1098 | clen += 1 |
|
1099 | clen += 1 | |
1099 | compresseddeltalen += e[1] |
|
1100 | compresseddeltalen += e[1] | |
1100 | if generaldelta: |
|
1101 | if generaldelta: | |
1101 | iterrev = e[3] |
|
1102 | iterrev = e[3] | |
1102 | else: |
|
1103 | else: | |
1103 | iterrev -= 1 |
|
1104 | iterrev -= 1 | |
1104 | if iterrev in chaininfocache: |
|
1105 | if iterrev in chaininfocache: | |
1105 | t = chaininfocache[iterrev] |
|
1106 | t = chaininfocache[iterrev] | |
1106 | clen += t[0] |
|
1107 | clen += t[0] | |
1107 | compresseddeltalen += t[1] |
|
1108 | compresseddeltalen += t[1] | |
1108 | break |
|
1109 | break | |
1109 | e = index[iterrev] |
|
1110 | e = index[iterrev] | |
1110 | else: |
|
1111 | else: | |
1111 | # Add text length of base since decompressing that also takes |
|
1112 | # Add text length of base since decompressing that also takes | |
1112 | # work. For cache hits the length is already included. |
|
1113 | # work. For cache hits the length is already included. | |
1113 | compresseddeltalen += e[1] |
|
1114 | compresseddeltalen += e[1] | |
1114 | r = (clen, compresseddeltalen) |
|
1115 | r = (clen, compresseddeltalen) | |
1115 | chaininfocache[rev] = r |
|
1116 | chaininfocache[rev] = r | |
1116 | return r |
|
1117 | return r | |
1117 |
|
1118 | |||
1118 | def _deltachain(self, rev, stoprev=None): |
|
1119 | def _deltachain(self, rev, stoprev=None): | |
1119 | """Obtain the delta chain for a revision. |
|
1120 | """Obtain the delta chain for a revision. | |
1120 |
|
1121 | |||
1121 | ``stoprev`` specifies a revision to stop at. If not specified, we |
|
1122 | ``stoprev`` specifies a revision to stop at. If not specified, we | |
1122 | stop at the base of the chain. |
|
1123 | stop at the base of the chain. | |
1123 |
|
1124 | |||
1124 | Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of |
|
1125 | Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of | |
1125 | revs in ascending order and ``stopped`` is a bool indicating whether |
|
1126 | revs in ascending order and ``stopped`` is a bool indicating whether | |
1126 | ``stoprev`` was hit. |
|
1127 | ``stoprev`` was hit. | |
1127 | """ |
|
1128 | """ | |
1128 | # Try C implementation. |
|
1129 | # Try C implementation. | |
1129 | try: |
|
1130 | try: | |
1130 | return self.index.deltachain(rev, stoprev, self._generaldelta) |
|
1131 | return self.index.deltachain(rev, stoprev, self._generaldelta) | |
1131 | except AttributeError: |
|
1132 | except AttributeError: | |
1132 | pass |
|
1133 | pass | |
1133 |
|
1134 | |||
1134 | chain = [] |
|
1135 | chain = [] | |
1135 |
|
1136 | |||
1136 | # Alias to prevent attribute lookup in tight loop. |
|
1137 | # Alias to prevent attribute lookup in tight loop. | |
1137 | index = self.index |
|
1138 | index = self.index | |
1138 | generaldelta = self._generaldelta |
|
1139 | generaldelta = self._generaldelta | |
1139 |
|
1140 | |||
1140 | iterrev = rev |
|
1141 | iterrev = rev | |
1141 | e = index[iterrev] |
|
1142 | e = index[iterrev] | |
1142 | while iterrev != e[3] and iterrev != stoprev: |
|
1143 | while iterrev != e[3] and iterrev != stoprev: | |
1143 | chain.append(iterrev) |
|
1144 | chain.append(iterrev) | |
1144 | if generaldelta: |
|
1145 | if generaldelta: | |
1145 | iterrev = e[3] |
|
1146 | iterrev = e[3] | |
1146 | else: |
|
1147 | else: | |
1147 | iterrev -= 1 |
|
1148 | iterrev -= 1 | |
1148 | e = index[iterrev] |
|
1149 | e = index[iterrev] | |
1149 |
|
1150 | |||
1150 | if iterrev == stoprev: |
|
1151 | if iterrev == stoprev: | |
1151 | stopped = True |
|
1152 | stopped = True | |
1152 | else: |
|
1153 | else: | |
1153 | chain.append(iterrev) |
|
1154 | chain.append(iterrev) | |
1154 | stopped = False |
|
1155 | stopped = False | |
1155 |
|
1156 | |||
1156 | chain.reverse() |
|
1157 | chain.reverse() | |
1157 | return chain, stopped |
|
1158 | return chain, stopped | |
1158 |
|
1159 | |||
1159 | def ancestors(self, revs, stoprev=0, inclusive=False): |
|
1160 | def ancestors(self, revs, stoprev=0, inclusive=False): | |
1160 | """Generate the ancestors of 'revs' in reverse revision order. |
|
1161 | """Generate the ancestors of 'revs' in reverse revision order. | |
1161 | Does not generate revs lower than stoprev. |
|
1162 | Does not generate revs lower than stoprev. | |
1162 |
|
1163 | |||
1163 | See the documentation for ancestor.lazyancestors for more details.""" |
|
1164 | See the documentation for ancestor.lazyancestors for more details.""" | |
1164 |
|
1165 | |||
1165 | # first, make sure start revisions aren't filtered |
|
1166 | # first, make sure start revisions aren't filtered | |
1166 | revs = list(revs) |
|
1167 | revs = list(revs) | |
1167 | checkrev = self.node |
|
1168 | checkrev = self.node | |
1168 | for r in revs: |
|
1169 | for r in revs: | |
1169 | checkrev(r) |
|
1170 | checkrev(r) | |
1170 | # and we're sure ancestors aren't filtered as well |
|
1171 | # and we're sure ancestors aren't filtered as well | |
1171 |
|
1172 | |||
1172 | if rustancestor is not None and self.index.rust_ext_compat: |
|
1173 | if rustancestor is not None and self.index.rust_ext_compat: | |
1173 | lazyancestors = rustancestor.LazyAncestors |
|
1174 | lazyancestors = rustancestor.LazyAncestors | |
1174 | arg = self.index |
|
1175 | arg = self.index | |
1175 | else: |
|
1176 | else: | |
1176 | lazyancestors = ancestor.lazyancestors |
|
1177 | lazyancestors = ancestor.lazyancestors | |
1177 | arg = self._uncheckedparentrevs |
|
1178 | arg = self._uncheckedparentrevs | |
1178 | return lazyancestors(arg, revs, stoprev=stoprev, inclusive=inclusive) |
|
1179 | return lazyancestors(arg, revs, stoprev=stoprev, inclusive=inclusive) | |
1179 |
|
1180 | |||
1180 | def descendants(self, revs): |
|
1181 | def descendants(self, revs): | |
1181 | return dagop.descendantrevs(revs, self.revs, self.parentrevs) |
|
1182 | return dagop.descendantrevs(revs, self.revs, self.parentrevs) | |
1182 |
|
1183 | |||
1183 | def findcommonmissing(self, common=None, heads=None): |
|
1184 | def findcommonmissing(self, common=None, heads=None): | |
1184 | """Return a tuple of the ancestors of common and the ancestors of heads |
|
1185 | """Return a tuple of the ancestors of common and the ancestors of heads | |
1185 | that are not ancestors of common. In revset terminology, we return the |
|
1186 | that are not ancestors of common. In revset terminology, we return the | |
1186 | tuple: |
|
1187 | tuple: | |
1187 |
|
1188 | |||
1188 | ::common, (::heads) - (::common) |
|
1189 | ::common, (::heads) - (::common) | |
1189 |
|
1190 | |||
1190 | The list is sorted by revision number, meaning it is |
|
1191 | The list is sorted by revision number, meaning it is | |
1191 | topologically sorted. |
|
1192 | topologically sorted. | |
1192 |
|
1193 | |||
1193 | 'heads' and 'common' are both lists of node IDs. If heads is |
|
1194 | 'heads' and 'common' are both lists of node IDs. If heads is | |
1194 | not supplied, uses all of the revlog's heads. If common is not |
|
1195 | not supplied, uses all of the revlog's heads. If common is not | |
1195 | supplied, uses nullid.""" |
|
1196 | supplied, uses nullid.""" | |
1196 | if common is None: |
|
1197 | if common is None: | |
1197 | common = [self.nullid] |
|
1198 | common = [self.nullid] | |
1198 | if heads is None: |
|
1199 | if heads is None: | |
1199 | heads = self.heads() |
|
1200 | heads = self.heads() | |
1200 |
|
1201 | |||
1201 | common = [self.rev(n) for n in common] |
|
1202 | common = [self.rev(n) for n in common] | |
1202 | heads = [self.rev(n) for n in heads] |
|
1203 | heads = [self.rev(n) for n in heads] | |
1203 |
|
1204 | |||
1204 | # we want the ancestors, but inclusive |
|
1205 | # we want the ancestors, but inclusive | |
1205 | class lazyset: |
|
1206 | class lazyset: | |
1206 | def __init__(self, lazyvalues): |
|
1207 | def __init__(self, lazyvalues): | |
1207 | self.addedvalues = set() |
|
1208 | self.addedvalues = set() | |
1208 | self.lazyvalues = lazyvalues |
|
1209 | self.lazyvalues = lazyvalues | |
1209 |
|
1210 | |||
1210 | def __contains__(self, value): |
|
1211 | def __contains__(self, value): | |
1211 | return value in self.addedvalues or value in self.lazyvalues |
|
1212 | return value in self.addedvalues or value in self.lazyvalues | |
1212 |
|
1213 | |||
1213 | def __iter__(self): |
|
1214 | def __iter__(self): | |
1214 | added = self.addedvalues |
|
1215 | added = self.addedvalues | |
1215 | for r in added: |
|
1216 | for r in added: | |
1216 | yield r |
|
1217 | yield r | |
1217 | for r in self.lazyvalues: |
|
1218 | for r in self.lazyvalues: | |
1218 | if not r in added: |
|
1219 | if not r in added: | |
1219 | yield r |
|
1220 | yield r | |
1220 |
|
1221 | |||
1221 | def add(self, value): |
|
1222 | def add(self, value): | |
1222 | self.addedvalues.add(value) |
|
1223 | self.addedvalues.add(value) | |
1223 |
|
1224 | |||
1224 | def update(self, values): |
|
1225 | def update(self, values): | |
1225 | self.addedvalues.update(values) |
|
1226 | self.addedvalues.update(values) | |
1226 |
|
1227 | |||
1227 | has = lazyset(self.ancestors(common)) |
|
1228 | has = lazyset(self.ancestors(common)) | |
1228 | has.add(nullrev) |
|
1229 | has.add(nullrev) | |
1229 | has.update(common) |
|
1230 | has.update(common) | |
1230 |
|
1231 | |||
1231 | # take all ancestors from heads that aren't in has |
|
1232 | # take all ancestors from heads that aren't in has | |
1232 | missing = set() |
|
1233 | missing = set() | |
1233 | visit = collections.deque(r for r in heads if r not in has) |
|
1234 | visit = collections.deque(r for r in heads if r not in has) | |
1234 | while visit: |
|
1235 | while visit: | |
1235 | r = visit.popleft() |
|
1236 | r = visit.popleft() | |
1236 | if r in missing: |
|
1237 | if r in missing: | |
1237 | continue |
|
1238 | continue | |
1238 | else: |
|
1239 | else: | |
1239 | missing.add(r) |
|
1240 | missing.add(r) | |
1240 | for p in self.parentrevs(r): |
|
1241 | for p in self.parentrevs(r): | |
1241 | if p not in has: |
|
1242 | if p not in has: | |
1242 | visit.append(p) |
|
1243 | visit.append(p) | |
1243 | missing = list(missing) |
|
1244 | missing = list(missing) | |
1244 | missing.sort() |
|
1245 | missing.sort() | |
1245 | return has, [self.node(miss) for miss in missing] |
|
1246 | return has, [self.node(miss) for miss in missing] | |
1246 |
|
1247 | |||
1247 | def incrementalmissingrevs(self, common=None): |
|
1248 | def incrementalmissingrevs(self, common=None): | |
1248 | """Return an object that can be used to incrementally compute the |
|
1249 | """Return an object that can be used to incrementally compute the | |
1249 | revision numbers of the ancestors of arbitrary sets that are not |
|
1250 | revision numbers of the ancestors of arbitrary sets that are not | |
1250 | ancestors of common. This is an ancestor.incrementalmissingancestors |
|
1251 | ancestors of common. This is an ancestor.incrementalmissingancestors | |
1251 | object. |
|
1252 | object. | |
1252 |
|
1253 | |||
1253 | 'common' is a list of revision numbers. If common is not supplied, uses |
|
1254 | 'common' is a list of revision numbers. If common is not supplied, uses | |
1254 | nullrev. |
|
1255 | nullrev. | |
1255 | """ |
|
1256 | """ | |
1256 | if common is None: |
|
1257 | if common is None: | |
1257 | common = [nullrev] |
|
1258 | common = [nullrev] | |
1258 |
|
1259 | |||
1259 | if rustancestor is not None and self.index.rust_ext_compat: |
|
1260 | if rustancestor is not None and self.index.rust_ext_compat: | |
1260 | return rustancestor.MissingAncestors(self.index, common) |
|
1261 | return rustancestor.MissingAncestors(self.index, common) | |
1261 | return ancestor.incrementalmissingancestors(self.parentrevs, common) |
|
1262 | return ancestor.incrementalmissingancestors(self.parentrevs, common) | |
1262 |
|
1263 | |||
1263 | def findmissingrevs(self, common=None, heads=None): |
|
1264 | def findmissingrevs(self, common=None, heads=None): | |
1264 | """Return the revision numbers of the ancestors of heads that |
|
1265 | """Return the revision numbers of the ancestors of heads that | |
1265 | are not ancestors of common. |
|
1266 | are not ancestors of common. | |
1266 |
|
1267 | |||
1267 | More specifically, return a list of revision numbers corresponding to |
|
1268 | More specifically, return a list of revision numbers corresponding to | |
1268 | nodes N such that every N satisfies the following constraints: |
|
1269 | nodes N such that every N satisfies the following constraints: | |
1269 |
|
1270 | |||
1270 | 1. N is an ancestor of some node in 'heads' |
|
1271 | 1. N is an ancestor of some node in 'heads' | |
1271 | 2. N is not an ancestor of any node in 'common' |
|
1272 | 2. N is not an ancestor of any node in 'common' | |
1272 |
|
1273 | |||
1273 | The list is sorted by revision number, meaning it is |
|
1274 | The list is sorted by revision number, meaning it is | |
1274 | topologically sorted. |
|
1275 | topologically sorted. | |
1275 |
|
1276 | |||
1276 | 'heads' and 'common' are both lists of revision numbers. If heads is |
|
1277 | 'heads' and 'common' are both lists of revision numbers. If heads is | |
1277 | not supplied, uses all of the revlog's heads. If common is not |
|
1278 | not supplied, uses all of the revlog's heads. If common is not | |
1278 | supplied, uses nullid.""" |
|
1279 | supplied, uses nullid.""" | |
1279 | if common is None: |
|
1280 | if common is None: | |
1280 | common = [nullrev] |
|
1281 | common = [nullrev] | |
1281 | if heads is None: |
|
1282 | if heads is None: | |
1282 | heads = self.headrevs() |
|
1283 | heads = self.headrevs() | |
1283 |
|
1284 | |||
1284 | inc = self.incrementalmissingrevs(common=common) |
|
1285 | inc = self.incrementalmissingrevs(common=common) | |
1285 | return inc.missingancestors(heads) |
|
1286 | return inc.missingancestors(heads) | |
1286 |
|
1287 | |||
1287 | def findmissing(self, common=None, heads=None): |
|
1288 | def findmissing(self, common=None, heads=None): | |
1288 | """Return the ancestors of heads that are not ancestors of common. |
|
1289 | """Return the ancestors of heads that are not ancestors of common. | |
1289 |
|
1290 | |||
1290 | More specifically, return a list of nodes N such that every N |
|
1291 | More specifically, return a list of nodes N such that every N | |
1291 | satisfies the following constraints: |
|
1292 | satisfies the following constraints: | |
1292 |
|
1293 | |||
1293 | 1. N is an ancestor of some node in 'heads' |
|
1294 | 1. N is an ancestor of some node in 'heads' | |
1294 | 2. N is not an ancestor of any node in 'common' |
|
1295 | 2. N is not an ancestor of any node in 'common' | |
1295 |
|
1296 | |||
1296 | The list is sorted by revision number, meaning it is |
|
1297 | The list is sorted by revision number, meaning it is | |
1297 | topologically sorted. |
|
1298 | topologically sorted. | |
1298 |
|
1299 | |||
1299 | 'heads' and 'common' are both lists of node IDs. If heads is |
|
1300 | 'heads' and 'common' are both lists of node IDs. If heads is | |
1300 | not supplied, uses all of the revlog's heads. If common is not |
|
1301 | not supplied, uses all of the revlog's heads. If common is not | |
1301 | supplied, uses nullid.""" |
|
1302 | supplied, uses nullid.""" | |
1302 | if common is None: |
|
1303 | if common is None: | |
1303 | common = [self.nullid] |
|
1304 | common = [self.nullid] | |
1304 | if heads is None: |
|
1305 | if heads is None: | |
1305 | heads = self.heads() |
|
1306 | heads = self.heads() | |
1306 |
|
1307 | |||
1307 | common = [self.rev(n) for n in common] |
|
1308 | common = [self.rev(n) for n in common] | |
1308 | heads = [self.rev(n) for n in heads] |
|
1309 | heads = [self.rev(n) for n in heads] | |
1309 |
|
1310 | |||
1310 | inc = self.incrementalmissingrevs(common=common) |
|
1311 | inc = self.incrementalmissingrevs(common=common) | |
1311 | return [self.node(r) for r in inc.missingancestors(heads)] |
|
1312 | return [self.node(r) for r in inc.missingancestors(heads)] | |
1312 |
|
1313 | |||
1313 | def nodesbetween(self, roots=None, heads=None): |
|
1314 | def nodesbetween(self, roots=None, heads=None): | |
1314 | """Return a topological path from 'roots' to 'heads'. |
|
1315 | """Return a topological path from 'roots' to 'heads'. | |
1315 |
|
1316 | |||
1316 | Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
|
1317 | Return a tuple (nodes, outroots, outheads) where 'nodes' is a | |
1317 | topologically sorted list of all nodes N that satisfy both of |
|
1318 | topologically sorted list of all nodes N that satisfy both of | |
1318 | these constraints: |
|
1319 | these constraints: | |
1319 |
|
1320 | |||
1320 | 1. N is a descendant of some node in 'roots' |
|
1321 | 1. N is a descendant of some node in 'roots' | |
1321 | 2. N is an ancestor of some node in 'heads' |
|
1322 | 2. N is an ancestor of some node in 'heads' | |
1322 |
|
1323 | |||
1323 | Every node is considered to be both a descendant and an ancestor |
|
1324 | Every node is considered to be both a descendant and an ancestor | |
1324 | of itself, so every reachable node in 'roots' and 'heads' will be |
|
1325 | of itself, so every reachable node in 'roots' and 'heads' will be | |
1325 | included in 'nodes'. |
|
1326 | included in 'nodes'. | |
1326 |
|
1327 | |||
1327 | 'outroots' is the list of reachable nodes in 'roots', i.e., the |
|
1328 | 'outroots' is the list of reachable nodes in 'roots', i.e., the | |
1328 | subset of 'roots' that is returned in 'nodes'. Likewise, |
|
1329 | subset of 'roots' that is returned in 'nodes'. Likewise, | |
1329 | 'outheads' is the subset of 'heads' that is also in 'nodes'. |
|
1330 | 'outheads' is the subset of 'heads' that is also in 'nodes'. | |
1330 |
|
1331 | |||
1331 | 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
|
1332 | 'roots' and 'heads' are both lists of node IDs. If 'roots' is | |
1332 | unspecified, uses nullid as the only root. If 'heads' is |
|
1333 | unspecified, uses nullid as the only root. If 'heads' is | |
1333 | unspecified, uses list of all of the revlog's heads.""" |
|
1334 | unspecified, uses list of all of the revlog's heads.""" | |
1334 | nonodes = ([], [], []) |
|
1335 | nonodes = ([], [], []) | |
1335 | if roots is not None: |
|
1336 | if roots is not None: | |
1336 | roots = list(roots) |
|
1337 | roots = list(roots) | |
1337 | if not roots: |
|
1338 | if not roots: | |
1338 | return nonodes |
|
1339 | return nonodes | |
1339 | lowestrev = min([self.rev(n) for n in roots]) |
|
1340 | lowestrev = min([self.rev(n) for n in roots]) | |
1340 | else: |
|
1341 | else: | |
1341 | roots = [self.nullid] # Everybody's a descendant of nullid |
|
1342 | roots = [self.nullid] # Everybody's a descendant of nullid | |
1342 | lowestrev = nullrev |
|
1343 | lowestrev = nullrev | |
1343 | if (lowestrev == nullrev) and (heads is None): |
|
1344 | if (lowestrev == nullrev) and (heads is None): | |
1344 | # We want _all_ the nodes! |
|
1345 | # We want _all_ the nodes! | |
1345 | return ( |
|
1346 | return ( | |
1346 | [self.node(r) for r in self], |
|
1347 | [self.node(r) for r in self], | |
1347 | [self.nullid], |
|
1348 | [self.nullid], | |
1348 | list(self.heads()), |
|
1349 | list(self.heads()), | |
1349 | ) |
|
1350 | ) | |
1350 | if heads is None: |
|
1351 | if heads is None: | |
1351 | # All nodes are ancestors, so the latest ancestor is the last |
|
1352 | # All nodes are ancestors, so the latest ancestor is the last | |
1352 | # node. |
|
1353 | # node. | |
1353 | highestrev = len(self) - 1 |
|
1354 | highestrev = len(self) - 1 | |
1354 | # Set ancestors to None to signal that every node is an ancestor. |
|
1355 | # Set ancestors to None to signal that every node is an ancestor. | |
1355 | ancestors = None |
|
1356 | ancestors = None | |
1356 | # Set heads to an empty dictionary for later discovery of heads |
|
1357 | # Set heads to an empty dictionary for later discovery of heads | |
1357 | heads = {} |
|
1358 | heads = {} | |
1358 | else: |
|
1359 | else: | |
1359 | heads = list(heads) |
|
1360 | heads = list(heads) | |
1360 | if not heads: |
|
1361 | if not heads: | |
1361 | return nonodes |
|
1362 | return nonodes | |
1362 | ancestors = set() |
|
1363 | ancestors = set() | |
1363 | # Turn heads into a dictionary so we can remove 'fake' heads. |
|
1364 | # Turn heads into a dictionary so we can remove 'fake' heads. | |
1364 | # Also, later we will be using it to filter out the heads we can't |
|
1365 | # Also, later we will be using it to filter out the heads we can't | |
1365 | # find from roots. |
|
1366 | # find from roots. | |
1366 | heads = dict.fromkeys(heads, False) |
|
1367 | heads = dict.fromkeys(heads, False) | |
1367 | # Start at the top and keep marking parents until we're done. |
|
1368 | # Start at the top and keep marking parents until we're done. | |
1368 | nodestotag = set(heads) |
|
1369 | nodestotag = set(heads) | |
1369 | # Remember where the top was so we can use it as a limit later. |
|
1370 | # Remember where the top was so we can use it as a limit later. | |
1370 | highestrev = max([self.rev(n) for n in nodestotag]) |
|
1371 | highestrev = max([self.rev(n) for n in nodestotag]) | |
1371 | while nodestotag: |
|
1372 | while nodestotag: | |
1372 | # grab a node to tag |
|
1373 | # grab a node to tag | |
1373 | n = nodestotag.pop() |
|
1374 | n = nodestotag.pop() | |
1374 | # Never tag nullid |
|
1375 | # Never tag nullid | |
1375 | if n == self.nullid: |
|
1376 | if n == self.nullid: | |
1376 | continue |
|
1377 | continue | |
1377 | # A node's revision number represents its place in a |
|
1378 | # A node's revision number represents its place in a | |
1378 | # topologically sorted list of nodes. |
|
1379 | # topologically sorted list of nodes. | |
1379 | r = self.rev(n) |
|
1380 | r = self.rev(n) | |
1380 | if r >= lowestrev: |
|
1381 | if r >= lowestrev: | |
1381 | if n not in ancestors: |
|
1382 | if n not in ancestors: | |
1382 | # If we are possibly a descendant of one of the roots |
|
1383 | # If we are possibly a descendant of one of the roots | |
1383 | # and we haven't already been marked as an ancestor |
|
1384 | # and we haven't already been marked as an ancestor | |
1384 | ancestors.add(n) # Mark as ancestor |
|
1385 | ancestors.add(n) # Mark as ancestor | |
1385 | # Add non-nullid parents to list of nodes to tag. |
|
1386 | # Add non-nullid parents to list of nodes to tag. | |
1386 | nodestotag.update( |
|
1387 | nodestotag.update( | |
1387 | [p for p in self.parents(n) if p != self.nullid] |
|
1388 | [p for p in self.parents(n) if p != self.nullid] | |
1388 | ) |
|
1389 | ) | |
1389 | elif n in heads: # We've seen it before, is it a fake head? |
|
1390 | elif n in heads: # We've seen it before, is it a fake head? | |
1390 | # So it is, real heads should not be the ancestors of |
|
1391 | # So it is, real heads should not be the ancestors of | |
1391 | # any other heads. |
|
1392 | # any other heads. | |
1392 | heads.pop(n) |
|
1393 | heads.pop(n) | |
1393 | if not ancestors: |
|
1394 | if not ancestors: | |
1394 | return nonodes |
|
1395 | return nonodes | |
1395 | # Now that we have our set of ancestors, we want to remove any |
|
1396 | # Now that we have our set of ancestors, we want to remove any | |
1396 | # roots that are not ancestors. |
|
1397 | # roots that are not ancestors. | |
1397 |
|
1398 | |||
1398 | # If one of the roots was nullid, everything is included anyway. |
|
1399 | # If one of the roots was nullid, everything is included anyway. | |
1399 | if lowestrev > nullrev: |
|
1400 | if lowestrev > nullrev: | |
1400 | # But, since we weren't, let's recompute the lowest rev to not |
|
1401 | # But, since we weren't, let's recompute the lowest rev to not | |
1401 | # include roots that aren't ancestors. |
|
1402 | # include roots that aren't ancestors. | |
1402 |
|
1403 | |||
1403 | # Filter out roots that aren't ancestors of heads |
|
1404 | # Filter out roots that aren't ancestors of heads | |
1404 | roots = [root for root in roots if root in ancestors] |
|
1405 | roots = [root for root in roots if root in ancestors] | |
1405 | # Recompute the lowest revision |
|
1406 | # Recompute the lowest revision | |
1406 | if roots: |
|
1407 | if roots: | |
1407 | lowestrev = min([self.rev(root) for root in roots]) |
|
1408 | lowestrev = min([self.rev(root) for root in roots]) | |
1408 | else: |
|
1409 | else: | |
1409 | # No more roots? Return empty list |
|
1410 | # No more roots? Return empty list | |
1410 | return nonodes |
|
1411 | return nonodes | |
1411 | else: |
|
1412 | else: | |
1412 | # We are descending from nullid, and don't need to care about |
|
1413 | # We are descending from nullid, and don't need to care about | |
1413 | # any other roots. |
|
1414 | # any other roots. | |
1414 | lowestrev = nullrev |
|
1415 | lowestrev = nullrev | |
1415 | roots = [self.nullid] |
|
1416 | roots = [self.nullid] | |
1416 | # Transform our roots list into a set. |
|
1417 | # Transform our roots list into a set. | |
1417 | descendants = set(roots) |
|
1418 | descendants = set(roots) | |
1418 | # Also, keep the original roots so we can filter out roots that aren't |
|
1419 | # Also, keep the original roots so we can filter out roots that aren't | |
1419 | # 'real' roots (i.e. are descended from other roots). |
|
1420 | # 'real' roots (i.e. are descended from other roots). | |
1420 | roots = descendants.copy() |
|
1421 | roots = descendants.copy() | |
1421 | # Our topologically sorted list of output nodes. |
|
1422 | # Our topologically sorted list of output nodes. | |
1422 | orderedout = [] |
|
1423 | orderedout = [] | |
1423 | # Don't start at nullid since we don't want nullid in our output list, |
|
1424 | # Don't start at nullid since we don't want nullid in our output list, | |
1424 | # and if nullid shows up in descendants, empty parents will look like |
|
1425 | # and if nullid shows up in descendants, empty parents will look like | |
1425 | # they're descendants. |
|
1426 | # they're descendants. | |
1426 | for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): |
|
1427 | for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): | |
1427 | n = self.node(r) |
|
1428 | n = self.node(r) | |
1428 | isdescendant = False |
|
1429 | isdescendant = False | |
1429 | if lowestrev == nullrev: # Everybody is a descendant of nullid |
|
1430 | if lowestrev == nullrev: # Everybody is a descendant of nullid | |
1430 | isdescendant = True |
|
1431 | isdescendant = True | |
1431 | elif n in descendants: |
|
1432 | elif n in descendants: | |
1432 | # n is already a descendant |
|
1433 | # n is already a descendant | |
1433 | isdescendant = True |
|
1434 | isdescendant = True | |
1434 | # This check only needs to be done here because all the roots |
|
1435 | # This check only needs to be done here because all the roots | |
1435 | # will start being marked is descendants before the loop. |
|
1436 | # will start being marked is descendants before the loop. | |
1436 | if n in roots: |
|
1437 | if n in roots: | |
1437 | # If n was a root, check if it's a 'real' root. |
|
1438 | # If n was a root, check if it's a 'real' root. | |
1438 | p = tuple(self.parents(n)) |
|
1439 | p = tuple(self.parents(n)) | |
1439 | # If any of its parents are descendants, it's not a root. |
|
1440 | # If any of its parents are descendants, it's not a root. | |
1440 | if (p[0] in descendants) or (p[1] in descendants): |
|
1441 | if (p[0] in descendants) or (p[1] in descendants): | |
1441 | roots.remove(n) |
|
1442 | roots.remove(n) | |
1442 | else: |
|
1443 | else: | |
1443 | p = tuple(self.parents(n)) |
|
1444 | p = tuple(self.parents(n)) | |
1444 | # A node is a descendant if either of its parents are |
|
1445 | # A node is a descendant if either of its parents are | |
1445 | # descendants. (We seeded the dependents list with the roots |
|
1446 | # descendants. (We seeded the dependents list with the roots | |
1446 | # up there, remember?) |
|
1447 | # up there, remember?) | |
1447 | if (p[0] in descendants) or (p[1] in descendants): |
|
1448 | if (p[0] in descendants) or (p[1] in descendants): | |
1448 | descendants.add(n) |
|
1449 | descendants.add(n) | |
1449 | isdescendant = True |
|
1450 | isdescendant = True | |
1450 | if isdescendant and ((ancestors is None) or (n in ancestors)): |
|
1451 | if isdescendant and ((ancestors is None) or (n in ancestors)): | |
1451 | # Only include nodes that are both descendants and ancestors. |
|
1452 | # Only include nodes that are both descendants and ancestors. | |
1452 | orderedout.append(n) |
|
1453 | orderedout.append(n) | |
1453 | if (ancestors is not None) and (n in heads): |
|
1454 | if (ancestors is not None) and (n in heads): | |
1454 | # We're trying to figure out which heads are reachable |
|
1455 | # We're trying to figure out which heads are reachable | |
1455 | # from roots. |
|
1456 | # from roots. | |
1456 | # Mark this head as having been reached |
|
1457 | # Mark this head as having been reached | |
1457 | heads[n] = True |
|
1458 | heads[n] = True | |
1458 | elif ancestors is None: |
|
1459 | elif ancestors is None: | |
1459 | # Otherwise, we're trying to discover the heads. |
|
1460 | # Otherwise, we're trying to discover the heads. | |
1460 | # Assume this is a head because if it isn't, the next step |
|
1461 | # Assume this is a head because if it isn't, the next step | |
1461 | # will eventually remove it. |
|
1462 | # will eventually remove it. | |
1462 | heads[n] = True |
|
1463 | heads[n] = True | |
1463 | # But, obviously its parents aren't. |
|
1464 | # But, obviously its parents aren't. | |
1464 | for p in self.parents(n): |
|
1465 | for p in self.parents(n): | |
1465 | heads.pop(p, None) |
|
1466 | heads.pop(p, None) | |
1466 | heads = [head for head, flag in heads.items() if flag] |
|
1467 | heads = [head for head, flag in heads.items() if flag] | |
1467 | roots = list(roots) |
|
1468 | roots = list(roots) | |
1468 | assert orderedout |
|
1469 | assert orderedout | |
1469 | assert roots |
|
1470 | assert roots | |
1470 | assert heads |
|
1471 | assert heads | |
1471 | return (orderedout, roots, heads) |
|
1472 | return (orderedout, roots, heads) | |
1472 |
|
1473 | |||
1473 | def headrevs(self, revs=None): |
|
1474 | def headrevs(self, revs=None): | |
1474 | if revs is None: |
|
1475 | if revs is None: | |
1475 | try: |
|
1476 | try: | |
1476 | return self.index.headrevs() |
|
1477 | return self.index.headrevs() | |
1477 | except AttributeError: |
|
1478 | except AttributeError: | |
1478 | return self._headrevs() |
|
1479 | return self._headrevs() | |
1479 | if rustdagop is not None and self.index.rust_ext_compat: |
|
1480 | if rustdagop is not None and self.index.rust_ext_compat: | |
1480 | return rustdagop.headrevs(self.index, revs) |
|
1481 | return rustdagop.headrevs(self.index, revs) | |
1481 | return dagop.headrevs(revs, self._uncheckedparentrevs) |
|
1482 | return dagop.headrevs(revs, self._uncheckedparentrevs) | |
1482 |
|
1483 | |||
1483 | def computephases(self, roots): |
|
1484 | def computephases(self, roots): | |
1484 | return self.index.computephasesmapsets(roots) |
|
1485 | return self.index.computephasesmapsets(roots) | |
1485 |
|
1486 | |||
1486 | def _headrevs(self): |
|
1487 | def _headrevs(self): | |
1487 | count = len(self) |
|
1488 | count = len(self) | |
1488 | if not count: |
|
1489 | if not count: | |
1489 | return [nullrev] |
|
1490 | return [nullrev] | |
1490 | # we won't iter over filtered rev so nobody is a head at start |
|
1491 | # we won't iter over filtered rev so nobody is a head at start | |
1491 | ishead = [0] * (count + 1) |
|
1492 | ishead = [0] * (count + 1) | |
1492 | index = self.index |
|
1493 | index = self.index | |
1493 | for r in self: |
|
1494 | for r in self: | |
1494 | ishead[r] = 1 # I may be an head |
|
1495 | ishead[r] = 1 # I may be an head | |
1495 | e = index[r] |
|
1496 | e = index[r] | |
1496 | ishead[e[5]] = ishead[e[6]] = 0 # my parent are not |
|
1497 | ishead[e[5]] = ishead[e[6]] = 0 # my parent are not | |
1497 | return [r for r, val in enumerate(ishead) if val] |
|
1498 | return [r for r, val in enumerate(ishead) if val] | |
1498 |
|
1499 | |||
1499 | def heads(self, start=None, stop=None): |
|
1500 | def heads(self, start=None, stop=None): | |
1500 | """return the list of all nodes that have no children |
|
1501 | """return the list of all nodes that have no children | |
1501 |
|
1502 | |||
1502 | if start is specified, only heads that are descendants of |
|
1503 | if start is specified, only heads that are descendants of | |
1503 | start will be returned |
|
1504 | start will be returned | |
1504 | if stop is specified, it will consider all the revs from stop |
|
1505 | if stop is specified, it will consider all the revs from stop | |
1505 | as if they had no children |
|
1506 | as if they had no children | |
1506 | """ |
|
1507 | """ | |
1507 | if start is None and stop is None: |
|
1508 | if start is None and stop is None: | |
1508 | if not len(self): |
|
1509 | if not len(self): | |
1509 | return [self.nullid] |
|
1510 | return [self.nullid] | |
1510 | return [self.node(r) for r in self.headrevs()] |
|
1511 | return [self.node(r) for r in self.headrevs()] | |
1511 |
|
1512 | |||
1512 | if start is None: |
|
1513 | if start is None: | |
1513 | start = nullrev |
|
1514 | start = nullrev | |
1514 | else: |
|
1515 | else: | |
1515 | start = self.rev(start) |
|
1516 | start = self.rev(start) | |
1516 |
|
1517 | |||
1517 | stoprevs = {self.rev(n) for n in stop or []} |
|
1518 | stoprevs = {self.rev(n) for n in stop or []} | |
1518 |
|
1519 | |||
1519 | revs = dagop.headrevssubset( |
|
1520 | revs = dagop.headrevssubset( | |
1520 | self.revs, self.parentrevs, startrev=start, stoprevs=stoprevs |
|
1521 | self.revs, self.parentrevs, startrev=start, stoprevs=stoprevs | |
1521 | ) |
|
1522 | ) | |
1522 |
|
1523 | |||
1523 | return [self.node(rev) for rev in revs] |
|
1524 | return [self.node(rev) for rev in revs] | |
1524 |
|
1525 | |||
1525 | def children(self, node): |
|
1526 | def children(self, node): | |
1526 | """find the children of a given node""" |
|
1527 | """find the children of a given node""" | |
1527 | c = [] |
|
1528 | c = [] | |
1528 | p = self.rev(node) |
|
1529 | p = self.rev(node) | |
1529 | for r in self.revs(start=p + 1): |
|
1530 | for r in self.revs(start=p + 1): | |
1530 | prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] |
|
1531 | prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] | |
1531 | if prevs: |
|
1532 | if prevs: | |
1532 | for pr in prevs: |
|
1533 | for pr in prevs: | |
1533 | if pr == p: |
|
1534 | if pr == p: | |
1534 | c.append(self.node(r)) |
|
1535 | c.append(self.node(r)) | |
1535 | elif p == nullrev: |
|
1536 | elif p == nullrev: | |
1536 | c.append(self.node(r)) |
|
1537 | c.append(self.node(r)) | |
1537 | return c |
|
1538 | return c | |
1538 |
|
1539 | |||
1539 | def commonancestorsheads(self, a, b): |
|
1540 | def commonancestorsheads(self, a, b): | |
1540 | """calculate all the heads of the common ancestors of nodes a and b""" |
|
1541 | """calculate all the heads of the common ancestors of nodes a and b""" | |
1541 | a, b = self.rev(a), self.rev(b) |
|
1542 | a, b = self.rev(a), self.rev(b) | |
1542 | ancs = self._commonancestorsheads(a, b) |
|
1543 | ancs = self._commonancestorsheads(a, b) | |
1543 | return pycompat.maplist(self.node, ancs) |
|
1544 | return pycompat.maplist(self.node, ancs) | |
1544 |
|
1545 | |||
1545 | def _commonancestorsheads(self, *revs): |
|
1546 | def _commonancestorsheads(self, *revs): | |
1546 | """calculate all the heads of the common ancestors of revs""" |
|
1547 | """calculate all the heads of the common ancestors of revs""" | |
1547 | try: |
|
1548 | try: | |
1548 | ancs = self.index.commonancestorsheads(*revs) |
|
1549 | ancs = self.index.commonancestorsheads(*revs) | |
1549 | except (AttributeError, OverflowError): # C implementation failed |
|
1550 | except (AttributeError, OverflowError): # C implementation failed | |
1550 | ancs = ancestor.commonancestorsheads(self.parentrevs, *revs) |
|
1551 | ancs = ancestor.commonancestorsheads(self.parentrevs, *revs) | |
1551 | return ancs |
|
1552 | return ancs | |
1552 |
|
1553 | |||
1553 | def isancestor(self, a, b): |
|
1554 | def isancestor(self, a, b): | |
1554 | """return True if node a is an ancestor of node b |
|
1555 | """return True if node a is an ancestor of node b | |
1555 |
|
1556 | |||
1556 | A revision is considered an ancestor of itself.""" |
|
1557 | A revision is considered an ancestor of itself.""" | |
1557 | a, b = self.rev(a), self.rev(b) |
|
1558 | a, b = self.rev(a), self.rev(b) | |
1558 | return self.isancestorrev(a, b) |
|
1559 | return self.isancestorrev(a, b) | |
1559 |
|
1560 | |||
1560 | def isancestorrev(self, a, b): |
|
1561 | def isancestorrev(self, a, b): | |
1561 | """return True if revision a is an ancestor of revision b |
|
1562 | """return True if revision a is an ancestor of revision b | |
1562 |
|
1563 | |||
1563 | A revision is considered an ancestor of itself. |
|
1564 | A revision is considered an ancestor of itself. | |
1564 |
|
1565 | |||
1565 | The implementation of this is trivial but the use of |
|
1566 | The implementation of this is trivial but the use of | |
1566 | reachableroots is not.""" |
|
1567 | reachableroots is not.""" | |
1567 | if a == nullrev: |
|
1568 | if a == nullrev: | |
1568 | return True |
|
1569 | return True | |
1569 | elif a == b: |
|
1570 | elif a == b: | |
1570 | return True |
|
1571 | return True | |
1571 | elif a > b: |
|
1572 | elif a > b: | |
1572 | return False |
|
1573 | return False | |
1573 | return bool(self.reachableroots(a, [b], [a], includepath=False)) |
|
1574 | return bool(self.reachableroots(a, [b], [a], includepath=False)) | |
1574 |
|
1575 | |||
1575 | def reachableroots(self, minroot, heads, roots, includepath=False): |
|
1576 | def reachableroots(self, minroot, heads, roots, includepath=False): | |
1576 | """return (heads(::(<roots> and <roots>::<heads>))) |
|
1577 | """return (heads(::(<roots> and <roots>::<heads>))) | |
1577 |
|
1578 | |||
1578 | If includepath is True, return (<roots>::<heads>).""" |
|
1579 | If includepath is True, return (<roots>::<heads>).""" | |
1579 | try: |
|
1580 | try: | |
1580 | return self.index.reachableroots2( |
|
1581 | return self.index.reachableroots2( | |
1581 | minroot, heads, roots, includepath |
|
1582 | minroot, heads, roots, includepath | |
1582 | ) |
|
1583 | ) | |
1583 | except AttributeError: |
|
1584 | except AttributeError: | |
1584 | return dagop._reachablerootspure( |
|
1585 | return dagop._reachablerootspure( | |
1585 | self.parentrevs, minroot, roots, heads, includepath |
|
1586 | self.parentrevs, minroot, roots, heads, includepath | |
1586 | ) |
|
1587 | ) | |
1587 |
|
1588 | |||
1588 | def ancestor(self, a, b): |
|
1589 | def ancestor(self, a, b): | |
1589 | """calculate the "best" common ancestor of nodes a and b""" |
|
1590 | """calculate the "best" common ancestor of nodes a and b""" | |
1590 |
|
1591 | |||
1591 | a, b = self.rev(a), self.rev(b) |
|
1592 | a, b = self.rev(a), self.rev(b) | |
1592 | try: |
|
1593 | try: | |
1593 | ancs = self.index.ancestors(a, b) |
|
1594 | ancs = self.index.ancestors(a, b) | |
1594 | except (AttributeError, OverflowError): |
|
1595 | except (AttributeError, OverflowError): | |
1595 | ancs = ancestor.ancestors(self.parentrevs, a, b) |
|
1596 | ancs = ancestor.ancestors(self.parentrevs, a, b) | |
1596 | if ancs: |
|
1597 | if ancs: | |
1597 | # choose a consistent winner when there's a tie |
|
1598 | # choose a consistent winner when there's a tie | |
1598 | return min(map(self.node, ancs)) |
|
1599 | return min(map(self.node, ancs)) | |
1599 | return self.nullid |
|
1600 | return self.nullid | |
1600 |
|
1601 | |||
1601 | def _match(self, id): |
|
1602 | def _match(self, id): | |
1602 | if isinstance(id, int): |
|
1603 | if isinstance(id, int): | |
1603 | # rev |
|
1604 | # rev | |
1604 | return self.node(id) |
|
1605 | return self.node(id) | |
1605 | if len(id) == self.nodeconstants.nodelen: |
|
1606 | if len(id) == self.nodeconstants.nodelen: | |
1606 | # possibly a binary node |
|
1607 | # possibly a binary node | |
1607 | # odds of a binary node being all hex in ASCII are 1 in 10**25 |
|
1608 | # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
1608 | try: |
|
1609 | try: | |
1609 | node = id |
|
1610 | node = id | |
1610 | self.rev(node) # quick search the index |
|
1611 | self.rev(node) # quick search the index | |
1611 | return node |
|
1612 | return node | |
1612 | except error.LookupError: |
|
1613 | except error.LookupError: | |
1613 | pass # may be partial hex id |
|
1614 | pass # may be partial hex id | |
1614 | try: |
|
1615 | try: | |
1615 | # str(rev) |
|
1616 | # str(rev) | |
1616 | rev = int(id) |
|
1617 | rev = int(id) | |
1617 | if b"%d" % rev != id: |
|
1618 | if b"%d" % rev != id: | |
1618 | raise ValueError |
|
1619 | raise ValueError | |
1619 | if rev < 0: |
|
1620 | if rev < 0: | |
1620 | rev = len(self) + rev |
|
1621 | rev = len(self) + rev | |
1621 | if rev < 0 or rev >= len(self): |
|
1622 | if rev < 0 or rev >= len(self): | |
1622 | raise ValueError |
|
1623 | raise ValueError | |
1623 | return self.node(rev) |
|
1624 | return self.node(rev) | |
1624 | except (ValueError, OverflowError): |
|
1625 | except (ValueError, OverflowError): | |
1625 | pass |
|
1626 | pass | |
1626 | if len(id) == 2 * self.nodeconstants.nodelen: |
|
1627 | if len(id) == 2 * self.nodeconstants.nodelen: | |
1627 | try: |
|
1628 | try: | |
1628 | # a full hex nodeid? |
|
1629 | # a full hex nodeid? | |
1629 | node = bin(id) |
|
1630 | node = bin(id) | |
1630 | self.rev(node) |
|
1631 | self.rev(node) | |
1631 | return node |
|
1632 | return node | |
1632 | except (binascii.Error, error.LookupError): |
|
1633 | except (binascii.Error, error.LookupError): | |
1633 | pass |
|
1634 | pass | |
1634 |
|
1635 | |||
1635 | def _partialmatch(self, id): |
|
1636 | def _partialmatch(self, id): | |
1636 | # we don't care wdirfilenodeids as they should be always full hash |
|
1637 | # we don't care wdirfilenodeids as they should be always full hash | |
1637 | maybewdir = self.nodeconstants.wdirhex.startswith(id) |
|
1638 | maybewdir = self.nodeconstants.wdirhex.startswith(id) | |
1638 | ambiguous = False |
|
1639 | ambiguous = False | |
1639 | try: |
|
1640 | try: | |
1640 | partial = self.index.partialmatch(id) |
|
1641 | partial = self.index.partialmatch(id) | |
1641 | if partial and self.hasnode(partial): |
|
1642 | if partial and self.hasnode(partial): | |
1642 | if maybewdir: |
|
1643 | if maybewdir: | |
1643 | # single 'ff...' match in radix tree, ambiguous with wdir |
|
1644 | # single 'ff...' match in radix tree, ambiguous with wdir | |
1644 | ambiguous = True |
|
1645 | ambiguous = True | |
1645 | else: |
|
1646 | else: | |
1646 | return partial |
|
1647 | return partial | |
1647 | elif maybewdir: |
|
1648 | elif maybewdir: | |
1648 | # no 'ff...' match in radix tree, wdir identified |
|
1649 | # no 'ff...' match in radix tree, wdir identified | |
1649 | raise error.WdirUnsupported |
|
1650 | raise error.WdirUnsupported | |
1650 | else: |
|
1651 | else: | |
1651 | return None |
|
1652 | return None | |
1652 | except error.RevlogError: |
|
1653 | except error.RevlogError: | |
1653 | # parsers.c radix tree lookup gave multiple matches |
|
1654 | # parsers.c radix tree lookup gave multiple matches | |
1654 | # fast path: for unfiltered changelog, radix tree is accurate |
|
1655 | # fast path: for unfiltered changelog, radix tree is accurate | |
1655 | if not getattr(self, 'filteredrevs', None): |
|
1656 | if not getattr(self, 'filteredrevs', None): | |
1656 | ambiguous = True |
|
1657 | ambiguous = True | |
1657 | # fall through to slow path that filters hidden revisions |
|
1658 | # fall through to slow path that filters hidden revisions | |
1658 | except (AttributeError, ValueError): |
|
1659 | except (AttributeError, ValueError): | |
1659 | # we are pure python, or key is not hex |
|
1660 | # we are pure python, or key is not hex | |
1660 | pass |
|
1661 | pass | |
1661 | if ambiguous: |
|
1662 | if ambiguous: | |
1662 | raise error.AmbiguousPrefixLookupError( |
|
1663 | raise error.AmbiguousPrefixLookupError( | |
1663 | id, self.display_id, _(b'ambiguous identifier') |
|
1664 | id, self.display_id, _(b'ambiguous identifier') | |
1664 | ) |
|
1665 | ) | |
1665 |
|
1666 | |||
1666 | if id in self._pcache: |
|
1667 | if id in self._pcache: | |
1667 | return self._pcache[id] |
|
1668 | return self._pcache[id] | |
1668 |
|
1669 | |||
1669 | if len(id) <= 40: |
|
1670 | if len(id) <= 40: | |
1670 | # hex(node)[:...] |
|
1671 | # hex(node)[:...] | |
1671 | l = len(id) // 2 * 2 # grab an even number of digits |
|
1672 | l = len(id) // 2 * 2 # grab an even number of digits | |
1672 | try: |
|
1673 | try: | |
1673 | # we're dropping the last digit, so let's check that it's hex, |
|
1674 | # we're dropping the last digit, so let's check that it's hex, | |
1674 | # to avoid the expensive computation below if it's not |
|
1675 | # to avoid the expensive computation below if it's not | |
1675 | if len(id) % 2 > 0: |
|
1676 | if len(id) % 2 > 0: | |
1676 | if not (id[-1] in hexdigits): |
|
1677 | if not (id[-1] in hexdigits): | |
1677 | return None |
|
1678 | return None | |
1678 | prefix = bin(id[:l]) |
|
1679 | prefix = bin(id[:l]) | |
1679 | except binascii.Error: |
|
1680 | except binascii.Error: | |
1680 | pass |
|
1681 | pass | |
1681 | else: |
|
1682 | else: | |
1682 | nl = [e[7] for e in self.index if e[7].startswith(prefix)] |
|
1683 | nl = [e[7] for e in self.index if e[7].startswith(prefix)] | |
1683 | nl = [ |
|
1684 | nl = [ | |
1684 | n for n in nl if hex(n).startswith(id) and self.hasnode(n) |
|
1685 | n for n in nl if hex(n).startswith(id) and self.hasnode(n) | |
1685 | ] |
|
1686 | ] | |
1686 | if self.nodeconstants.nullhex.startswith(id): |
|
1687 | if self.nodeconstants.nullhex.startswith(id): | |
1687 | nl.append(self.nullid) |
|
1688 | nl.append(self.nullid) | |
1688 | if len(nl) > 0: |
|
1689 | if len(nl) > 0: | |
1689 | if len(nl) == 1 and not maybewdir: |
|
1690 | if len(nl) == 1 and not maybewdir: | |
1690 | self._pcache[id] = nl[0] |
|
1691 | self._pcache[id] = nl[0] | |
1691 | return nl[0] |
|
1692 | return nl[0] | |
1692 | raise error.AmbiguousPrefixLookupError( |
|
1693 | raise error.AmbiguousPrefixLookupError( | |
1693 | id, self.display_id, _(b'ambiguous identifier') |
|
1694 | id, self.display_id, _(b'ambiguous identifier') | |
1694 | ) |
|
1695 | ) | |
1695 | if maybewdir: |
|
1696 | if maybewdir: | |
1696 | raise error.WdirUnsupported |
|
1697 | raise error.WdirUnsupported | |
1697 | return None |
|
1698 | return None | |
1698 |
|
1699 | |||
1699 | def lookup(self, id): |
|
1700 | def lookup(self, id): | |
1700 | """locate a node based on: |
|
1701 | """locate a node based on: | |
1701 | - revision number or str(revision number) |
|
1702 | - revision number or str(revision number) | |
1702 | - nodeid or subset of hex nodeid |
|
1703 | - nodeid or subset of hex nodeid | |
1703 | """ |
|
1704 | """ | |
1704 | n = self._match(id) |
|
1705 | n = self._match(id) | |
1705 | if n is not None: |
|
1706 | if n is not None: | |
1706 | return n |
|
1707 | return n | |
1707 | n = self._partialmatch(id) |
|
1708 | n = self._partialmatch(id) | |
1708 | if n: |
|
1709 | if n: | |
1709 | return n |
|
1710 | return n | |
1710 |
|
1711 | |||
1711 | raise error.LookupError(id, self.display_id, _(b'no match found')) |
|
1712 | raise error.LookupError(id, self.display_id, _(b'no match found')) | |
1712 |
|
1713 | |||
1713 | def shortest(self, node, minlength=1): |
|
1714 | def shortest(self, node, minlength=1): | |
1714 | """Find the shortest unambiguous prefix that matches node.""" |
|
1715 | """Find the shortest unambiguous prefix that matches node.""" | |
1715 |
|
1716 | |||
1716 | def isvalid(prefix): |
|
1717 | def isvalid(prefix): | |
1717 | try: |
|
1718 | try: | |
1718 | matchednode = self._partialmatch(prefix) |
|
1719 | matchednode = self._partialmatch(prefix) | |
1719 | except error.AmbiguousPrefixLookupError: |
|
1720 | except error.AmbiguousPrefixLookupError: | |
1720 | return False |
|
1721 | return False | |
1721 | except error.WdirUnsupported: |
|
1722 | except error.WdirUnsupported: | |
1722 | # single 'ff...' match |
|
1723 | # single 'ff...' match | |
1723 | return True |
|
1724 | return True | |
1724 | if matchednode is None: |
|
1725 | if matchednode is None: | |
1725 | raise error.LookupError(node, self.display_id, _(b'no node')) |
|
1726 | raise error.LookupError(node, self.display_id, _(b'no node')) | |
1726 | return True |
|
1727 | return True | |
1727 |
|
1728 | |||
1728 | def maybewdir(prefix): |
|
1729 | def maybewdir(prefix): | |
1729 | return all(c == b'f' for c in pycompat.iterbytestr(prefix)) |
|
1730 | return all(c == b'f' for c in pycompat.iterbytestr(prefix)) | |
1730 |
|
1731 | |||
1731 | hexnode = hex(node) |
|
1732 | hexnode = hex(node) | |
1732 |
|
1733 | |||
1733 | def disambiguate(hexnode, minlength): |
|
1734 | def disambiguate(hexnode, minlength): | |
1734 | """Disambiguate against wdirid.""" |
|
1735 | """Disambiguate against wdirid.""" | |
1735 | for length in range(minlength, len(hexnode) + 1): |
|
1736 | for length in range(minlength, len(hexnode) + 1): | |
1736 | prefix = hexnode[:length] |
|
1737 | prefix = hexnode[:length] | |
1737 | if not maybewdir(prefix): |
|
1738 | if not maybewdir(prefix): | |
1738 | return prefix |
|
1739 | return prefix | |
1739 |
|
1740 | |||
1740 | if not getattr(self, 'filteredrevs', None): |
|
1741 | if not getattr(self, 'filteredrevs', None): | |
1741 | try: |
|
1742 | try: | |
1742 | length = max(self.index.shortest(node), minlength) |
|
1743 | length = max(self.index.shortest(node), minlength) | |
1743 | return disambiguate(hexnode, length) |
|
1744 | return disambiguate(hexnode, length) | |
1744 | except error.RevlogError: |
|
1745 | except error.RevlogError: | |
1745 | if node != self.nodeconstants.wdirid: |
|
1746 | if node != self.nodeconstants.wdirid: | |
1746 | raise error.LookupError( |
|
1747 | raise error.LookupError( | |
1747 | node, self.display_id, _(b'no node') |
|
1748 | node, self.display_id, _(b'no node') | |
1748 | ) |
|
1749 | ) | |
1749 | except AttributeError: |
|
1750 | except AttributeError: | |
1750 | # Fall through to pure code |
|
1751 | # Fall through to pure code | |
1751 | pass |
|
1752 | pass | |
1752 |
|
1753 | |||
1753 | if node == self.nodeconstants.wdirid: |
|
1754 | if node == self.nodeconstants.wdirid: | |
1754 | for length in range(minlength, len(hexnode) + 1): |
|
1755 | for length in range(minlength, len(hexnode) + 1): | |
1755 | prefix = hexnode[:length] |
|
1756 | prefix = hexnode[:length] | |
1756 | if isvalid(prefix): |
|
1757 | if isvalid(prefix): | |
1757 | return prefix |
|
1758 | return prefix | |
1758 |
|
1759 | |||
1759 | for length in range(minlength, len(hexnode) + 1): |
|
1760 | for length in range(minlength, len(hexnode) + 1): | |
1760 | prefix = hexnode[:length] |
|
1761 | prefix = hexnode[:length] | |
1761 | if isvalid(prefix): |
|
1762 | if isvalid(prefix): | |
1762 | return disambiguate(hexnode, length) |
|
1763 | return disambiguate(hexnode, length) | |
1763 |
|
1764 | |||
1764 | def cmp(self, node, text): |
|
1765 | def cmp(self, node, text): | |
1765 | """compare text with a given file revision |
|
1766 | """compare text with a given file revision | |
1766 |
|
1767 | |||
1767 | returns True if text is different than what is stored. |
|
1768 | returns True if text is different than what is stored. | |
1768 | """ |
|
1769 | """ | |
1769 | p1, p2 = self.parents(node) |
|
1770 | p1, p2 = self.parents(node) | |
1770 | return storageutil.hashrevisionsha1(text, p1, p2) != node |
|
1771 | return storageutil.hashrevisionsha1(text, p1, p2) != node | |
1771 |
|
1772 | |||
1772 | def _getsegmentforrevs(self, startrev, endrev, df=None): |
|
1773 | def _getsegmentforrevs(self, startrev, endrev, df=None): | |
1773 | """Obtain a segment of raw data corresponding to a range of revisions. |
|
1774 | """Obtain a segment of raw data corresponding to a range of revisions. | |
1774 |
|
1775 | |||
1775 | Accepts the start and end revisions and an optional already-open |
|
1776 | Accepts the start and end revisions and an optional already-open | |
1776 | file handle to be used for reading. If the file handle is read, its |
|
1777 | file handle to be used for reading. If the file handle is read, its | |
1777 | seek position will not be preserved. |
|
1778 | seek position will not be preserved. | |
1778 |
|
1779 | |||
1779 | Requests for data may be satisfied by a cache. |
|
1780 | Requests for data may be satisfied by a cache. | |
1780 |
|
1781 | |||
1781 | Returns a 2-tuple of (offset, data) for the requested range of |
|
1782 | Returns a 2-tuple of (offset, data) for the requested range of | |
1782 | revisions. Offset is the integer offset from the beginning of the |
|
1783 | revisions. Offset is the integer offset from the beginning of the | |
1783 | revlog and data is a str or buffer of the raw byte data. |
|
1784 | revlog and data is a str or buffer of the raw byte data. | |
1784 |
|
1785 | |||
1785 | Callers will need to call ``self.start(rev)`` and ``self.length(rev)`` |
|
1786 | Callers will need to call ``self.start(rev)`` and ``self.length(rev)`` | |
1786 | to determine where each revision's data begins and ends. |
|
1787 | to determine where each revision's data begins and ends. | |
1787 | """ |
|
1788 | """ | |
1788 | # Inlined self.start(startrev) & self.end(endrev) for perf reasons |
|
1789 | # Inlined self.start(startrev) & self.end(endrev) for perf reasons | |
1789 | # (functions are expensive). |
|
1790 | # (functions are expensive). | |
1790 | index = self.index |
|
1791 | index = self.index | |
1791 | istart = index[startrev] |
|
1792 | istart = index[startrev] | |
1792 | start = int(istart[0] >> 16) |
|
1793 | start = int(istart[0] >> 16) | |
1793 | if startrev == endrev: |
|
1794 | if startrev == endrev: | |
1794 | end = start + istart[1] |
|
1795 | end = start + istart[1] | |
1795 | else: |
|
1796 | else: | |
1796 | iend = index[endrev] |
|
1797 | iend = index[endrev] | |
1797 | end = int(iend[0] >> 16) + iend[1] |
|
1798 | end = int(iend[0] >> 16) + iend[1] | |
1798 |
|
1799 | |||
1799 | if self._inline: |
|
1800 | if self._inline: | |
1800 | start += (startrev + 1) * self.index.entry_size |
|
1801 | start += (startrev + 1) * self.index.entry_size | |
1801 | end += (endrev + 1) * self.index.entry_size |
|
1802 | end += (endrev + 1) * self.index.entry_size | |
1802 | length = end - start |
|
1803 | length = end - start | |
1803 |
|
1804 | |||
1804 | return start, self._segmentfile.read_chunk(start, length, df) |
|
1805 | return start, self._segmentfile.read_chunk(start, length, df) | |
1805 |
|
1806 | |||
1806 | def _chunk(self, rev, df=None): |
|
1807 | def _chunk(self, rev, df=None): | |
1807 | """Obtain a single decompressed chunk for a revision. |
|
1808 | """Obtain a single decompressed chunk for a revision. | |
1808 |
|
1809 | |||
1809 | Accepts an integer revision and an optional already-open file handle |
|
1810 | Accepts an integer revision and an optional already-open file handle | |
1810 | to be used for reading. If used, the seek position of the file will not |
|
1811 | to be used for reading. If used, the seek position of the file will not | |
1811 | be preserved. |
|
1812 | be preserved. | |
1812 |
|
1813 | |||
1813 | Returns a str holding uncompressed data for the requested revision. |
|
1814 | Returns a str holding uncompressed data for the requested revision. | |
1814 | """ |
|
1815 | """ | |
1815 | compression_mode = self.index[rev][10] |
|
1816 | compression_mode = self.index[rev][10] | |
1816 | data = self._getsegmentforrevs(rev, rev, df=df)[1] |
|
1817 | data = self._getsegmentforrevs(rev, rev, df=df)[1] | |
1817 | if compression_mode == COMP_MODE_PLAIN: |
|
1818 | if compression_mode == COMP_MODE_PLAIN: | |
1818 | return data |
|
1819 | return data | |
1819 | elif compression_mode == COMP_MODE_DEFAULT: |
|
1820 | elif compression_mode == COMP_MODE_DEFAULT: | |
1820 | return self._decompressor(data) |
|
1821 | return self._decompressor(data) | |
1821 | elif compression_mode == COMP_MODE_INLINE: |
|
1822 | elif compression_mode == COMP_MODE_INLINE: | |
1822 | return self.decompress(data) |
|
1823 | return self.decompress(data) | |
1823 | else: |
|
1824 | else: | |
1824 | msg = b'unknown compression mode %d' |
|
1825 | msg = b'unknown compression mode %d' | |
1825 | msg %= compression_mode |
|
1826 | msg %= compression_mode | |
1826 | raise error.RevlogError(msg) |
|
1827 | raise error.RevlogError(msg) | |
1827 |
|
1828 | |||
1828 | def _chunks(self, revs, df=None, targetsize=None): |
|
1829 | def _chunks(self, revs, df=None, targetsize=None): | |
1829 | """Obtain decompressed chunks for the specified revisions. |
|
1830 | """Obtain decompressed chunks for the specified revisions. | |
1830 |
|
1831 | |||
1831 | Accepts an iterable of numeric revisions that are assumed to be in |
|
1832 | Accepts an iterable of numeric revisions that are assumed to be in | |
1832 | ascending order. Also accepts an optional already-open file handle |
|
1833 | ascending order. Also accepts an optional already-open file handle | |
1833 | to be used for reading. If used, the seek position of the file will |
|
1834 | to be used for reading. If used, the seek position of the file will | |
1834 | not be preserved. |
|
1835 | not be preserved. | |
1835 |
|
1836 | |||
1836 | This function is similar to calling ``self._chunk()`` multiple times, |
|
1837 | This function is similar to calling ``self._chunk()`` multiple times, | |
1837 | but is faster. |
|
1838 | but is faster. | |
1838 |
|
1839 | |||
1839 | Returns a list with decompressed data for each requested revision. |
|
1840 | Returns a list with decompressed data for each requested revision. | |
1840 | """ |
|
1841 | """ | |
1841 | if not revs: |
|
1842 | if not revs: | |
1842 | return [] |
|
1843 | return [] | |
1843 | start = self.start |
|
1844 | start = self.start | |
1844 | length = self.length |
|
1845 | length = self.length | |
1845 | inline = self._inline |
|
1846 | inline = self._inline | |
1846 | iosize = self.index.entry_size |
|
1847 | iosize = self.index.entry_size | |
1847 | buffer = util.buffer |
|
1848 | buffer = util.buffer | |
1848 |
|
1849 | |||
1849 | l = [] |
|
1850 | l = [] | |
1850 | ladd = l.append |
|
1851 | ladd = l.append | |
1851 |
|
1852 | |||
1852 | if not self._withsparseread: |
|
1853 | if not self._withsparseread: | |
1853 | slicedchunks = (revs,) |
|
1854 | slicedchunks = (revs,) | |
1854 | else: |
|
1855 | else: | |
1855 | slicedchunks = deltautil.slicechunk( |
|
1856 | slicedchunks = deltautil.slicechunk( | |
1856 | self, revs, targetsize=targetsize |
|
1857 | self, revs, targetsize=targetsize | |
1857 | ) |
|
1858 | ) | |
1858 |
|
1859 | |||
1859 | for revschunk in slicedchunks: |
|
1860 | for revschunk in slicedchunks: | |
1860 | firstrev = revschunk[0] |
|
1861 | firstrev = revschunk[0] | |
1861 | # Skip trailing revisions with empty diff |
|
1862 | # Skip trailing revisions with empty diff | |
1862 | for lastrev in revschunk[::-1]: |
|
1863 | for lastrev in revschunk[::-1]: | |
1863 | if length(lastrev) != 0: |
|
1864 | if length(lastrev) != 0: | |
1864 | break |
|
1865 | break | |
1865 |
|
1866 | |||
1866 | try: |
|
1867 | try: | |
1867 | offset, data = self._getsegmentforrevs(firstrev, lastrev, df=df) |
|
1868 | offset, data = self._getsegmentforrevs(firstrev, lastrev, df=df) | |
1868 | except OverflowError: |
|
1869 | except OverflowError: | |
1869 | # issue4215 - we can't cache a run of chunks greater than |
|
1870 | # issue4215 - we can't cache a run of chunks greater than | |
1870 | # 2G on Windows |
|
1871 | # 2G on Windows | |
1871 | return [self._chunk(rev, df=df) for rev in revschunk] |
|
1872 | return [self._chunk(rev, df=df) for rev in revschunk] | |
1872 |
|
1873 | |||
1873 | decomp = self.decompress |
|
1874 | decomp = self.decompress | |
1874 | # self._decompressor might be None, but will not be used in that case |
|
1875 | # self._decompressor might be None, but will not be used in that case | |
1875 | def_decomp = self._decompressor |
|
1876 | def_decomp = self._decompressor | |
1876 | for rev in revschunk: |
|
1877 | for rev in revschunk: | |
1877 | chunkstart = start(rev) |
|
1878 | chunkstart = start(rev) | |
1878 | if inline: |
|
1879 | if inline: | |
1879 | chunkstart += (rev + 1) * iosize |
|
1880 | chunkstart += (rev + 1) * iosize | |
1880 | chunklength = length(rev) |
|
1881 | chunklength = length(rev) | |
1881 | comp_mode = self.index[rev][10] |
|
1882 | comp_mode = self.index[rev][10] | |
1882 | c = buffer(data, chunkstart - offset, chunklength) |
|
1883 | c = buffer(data, chunkstart - offset, chunklength) | |
1883 | if comp_mode == COMP_MODE_PLAIN: |
|
1884 | if comp_mode == COMP_MODE_PLAIN: | |
1884 | ladd(c) |
|
1885 | ladd(c) | |
1885 | elif comp_mode == COMP_MODE_INLINE: |
|
1886 | elif comp_mode == COMP_MODE_INLINE: | |
1886 | ladd(decomp(c)) |
|
1887 | ladd(decomp(c)) | |
1887 | elif comp_mode == COMP_MODE_DEFAULT: |
|
1888 | elif comp_mode == COMP_MODE_DEFAULT: | |
1888 | ladd(def_decomp(c)) |
|
1889 | ladd(def_decomp(c)) | |
1889 | else: |
|
1890 | else: | |
1890 | msg = b'unknown compression mode %d' |
|
1891 | msg = b'unknown compression mode %d' | |
1891 | msg %= comp_mode |
|
1892 | msg %= comp_mode | |
1892 | raise error.RevlogError(msg) |
|
1893 | raise error.RevlogError(msg) | |
1893 |
|
1894 | |||
1894 | return l |
|
1895 | return l | |
1895 |
|
1896 | |||
1896 | def deltaparent(self, rev): |
|
1897 | def deltaparent(self, rev): | |
1897 | """return deltaparent of the given revision""" |
|
1898 | """return deltaparent of the given revision""" | |
1898 | base = self.index[rev][3] |
|
1899 | base = self.index[rev][3] | |
1899 | if base == rev: |
|
1900 | if base == rev: | |
1900 | return nullrev |
|
1901 | return nullrev | |
1901 | elif self._generaldelta: |
|
1902 | elif self._generaldelta: | |
1902 | return base |
|
1903 | return base | |
1903 | else: |
|
1904 | else: | |
1904 | return rev - 1 |
|
1905 | return rev - 1 | |
1905 |
|
1906 | |||
1906 | def issnapshot(self, rev): |
|
1907 | def issnapshot(self, rev): | |
1907 | """tells whether rev is a snapshot""" |
|
1908 | """tells whether rev is a snapshot""" | |
1908 | if not self._sparserevlog: |
|
1909 | if not self._sparserevlog: | |
1909 | return self.deltaparent(rev) == nullrev |
|
1910 | return self.deltaparent(rev) == nullrev | |
1910 | elif hasattr(self.index, 'issnapshot'): |
|
1911 | elif hasattr(self.index, 'issnapshot'): | |
1911 | # directly assign the method to cache the testing and access |
|
1912 | # directly assign the method to cache the testing and access | |
1912 | self.issnapshot = self.index.issnapshot |
|
1913 | self.issnapshot = self.index.issnapshot | |
1913 | return self.issnapshot(rev) |
|
1914 | return self.issnapshot(rev) | |
1914 | if rev == nullrev: |
|
1915 | if rev == nullrev: | |
1915 | return True |
|
1916 | return True | |
1916 | entry = self.index[rev] |
|
1917 | entry = self.index[rev] | |
1917 | base = entry[3] |
|
1918 | base = entry[3] | |
1918 | if base == rev: |
|
1919 | if base == rev: | |
1919 | return True |
|
1920 | return True | |
1920 | if base == nullrev: |
|
1921 | if base == nullrev: | |
1921 | return True |
|
1922 | return True | |
1922 | p1 = entry[5] |
|
1923 | p1 = entry[5] | |
1923 | while self.length(p1) == 0: |
|
1924 | while self.length(p1) == 0: | |
1924 | b = self.deltaparent(p1) |
|
1925 | b = self.deltaparent(p1) | |
1925 | if b == p1: |
|
1926 | if b == p1: | |
1926 | break |
|
1927 | break | |
1927 | p1 = b |
|
1928 | p1 = b | |
1928 | p2 = entry[6] |
|
1929 | p2 = entry[6] | |
1929 | while self.length(p2) == 0: |
|
1930 | while self.length(p2) == 0: | |
1930 | b = self.deltaparent(p2) |
|
1931 | b = self.deltaparent(p2) | |
1931 | if b == p2: |
|
1932 | if b == p2: | |
1932 | break |
|
1933 | break | |
1933 | p2 = b |
|
1934 | p2 = b | |
1934 | if base == p1 or base == p2: |
|
1935 | if base == p1 or base == p2: | |
1935 | return False |
|
1936 | return False | |
1936 | return self.issnapshot(base) |
|
1937 | return self.issnapshot(base) | |
1937 |
|
1938 | |||
1938 | def snapshotdepth(self, rev): |
|
1939 | def snapshotdepth(self, rev): | |
1939 | """number of snapshot in the chain before this one""" |
|
1940 | """number of snapshot in the chain before this one""" | |
1940 | if not self.issnapshot(rev): |
|
1941 | if not self.issnapshot(rev): | |
1941 | raise error.ProgrammingError(b'revision %d not a snapshot') |
|
1942 | raise error.ProgrammingError(b'revision %d not a snapshot') | |
1942 | return len(self._deltachain(rev)[0]) - 1 |
|
1943 | return len(self._deltachain(rev)[0]) - 1 | |
1943 |
|
1944 | |||
1944 | def revdiff(self, rev1, rev2): |
|
1945 | def revdiff(self, rev1, rev2): | |
1945 | """return or calculate a delta between two revisions |
|
1946 | """return or calculate a delta between two revisions | |
1946 |
|
1947 | |||
1947 | The delta calculated is in binary form and is intended to be written to |
|
1948 | The delta calculated is in binary form and is intended to be written to | |
1948 | revlog data directly. So this function needs raw revision data. |
|
1949 | revlog data directly. So this function needs raw revision data. | |
1949 | """ |
|
1950 | """ | |
1950 | if rev1 != nullrev and self.deltaparent(rev2) == rev1: |
|
1951 | if rev1 != nullrev and self.deltaparent(rev2) == rev1: | |
1951 | return bytes(self._chunk(rev2)) |
|
1952 | return bytes(self._chunk(rev2)) | |
1952 |
|
1953 | |||
1953 | return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2)) |
|
1954 | return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2)) | |
1954 |
|
1955 | |||
1955 | def revision(self, nodeorrev, _df=None): |
|
1956 | def revision(self, nodeorrev, _df=None): | |
1956 | """return an uncompressed revision of a given node or revision |
|
1957 | """return an uncompressed revision of a given node or revision | |
1957 | number. |
|
1958 | number. | |
1958 |
|
1959 | |||
1959 | _df - an existing file handle to read from. (internal-only) |
|
1960 | _df - an existing file handle to read from. (internal-only) | |
1960 | """ |
|
1961 | """ | |
1961 | return self._revisiondata(nodeorrev, _df) |
|
1962 | return self._revisiondata(nodeorrev, _df) | |
1962 |
|
1963 | |||
1963 | def sidedata(self, nodeorrev, _df=None): |
|
1964 | def sidedata(self, nodeorrev, _df=None): | |
1964 | """a map of extra data related to the changeset but not part of the hash |
|
1965 | """a map of extra data related to the changeset but not part of the hash | |
1965 |
|
1966 | |||
1966 | This function currently return a dictionary. However, more advanced |
|
1967 | This function currently return a dictionary. However, more advanced | |
1967 | mapping object will likely be used in the future for a more |
|
1968 | mapping object will likely be used in the future for a more | |
1968 | efficient/lazy code. |
|
1969 | efficient/lazy code. | |
1969 | """ |
|
1970 | """ | |
1970 | # deal with <nodeorrev> argument type |
|
1971 | # deal with <nodeorrev> argument type | |
1971 | if isinstance(nodeorrev, int): |
|
1972 | if isinstance(nodeorrev, int): | |
1972 | rev = nodeorrev |
|
1973 | rev = nodeorrev | |
1973 | else: |
|
1974 | else: | |
1974 | rev = self.rev(nodeorrev) |
|
1975 | rev = self.rev(nodeorrev) | |
1975 | return self._sidedata(rev) |
|
1976 | return self._sidedata(rev) | |
1976 |
|
1977 | |||
1977 | def _revisiondata(self, nodeorrev, _df=None, raw=False): |
|
1978 | def _revisiondata(self, nodeorrev, _df=None, raw=False): | |
1978 | # deal with <nodeorrev> argument type |
|
1979 | # deal with <nodeorrev> argument type | |
1979 | if isinstance(nodeorrev, int): |
|
1980 | if isinstance(nodeorrev, int): | |
1980 | rev = nodeorrev |
|
1981 | rev = nodeorrev | |
1981 | node = self.node(rev) |
|
1982 | node = self.node(rev) | |
1982 | else: |
|
1983 | else: | |
1983 | node = nodeorrev |
|
1984 | node = nodeorrev | |
1984 | rev = None |
|
1985 | rev = None | |
1985 |
|
1986 | |||
1986 | # fast path the special `nullid` rev |
|
1987 | # fast path the special `nullid` rev | |
1987 | if node == self.nullid: |
|
1988 | if node == self.nullid: | |
1988 | return b"" |
|
1989 | return b"" | |
1989 |
|
1990 | |||
1990 | # ``rawtext`` is the text as stored inside the revlog. Might be the |
|
1991 | # ``rawtext`` is the text as stored inside the revlog. Might be the | |
1991 | # revision or might need to be processed to retrieve the revision. |
|
1992 | # revision or might need to be processed to retrieve the revision. | |
1992 | rev, rawtext, validated = self._rawtext(node, rev, _df=_df) |
|
1993 | rev, rawtext, validated = self._rawtext(node, rev, _df=_df) | |
1993 |
|
1994 | |||
1994 | if raw and validated: |
|
1995 | if raw and validated: | |
1995 | # if we don't want to process the raw text and that raw |
|
1996 | # if we don't want to process the raw text and that raw | |
1996 | # text is cached, we can exit early. |
|
1997 | # text is cached, we can exit early. | |
1997 | return rawtext |
|
1998 | return rawtext | |
1998 | if rev is None: |
|
1999 | if rev is None: | |
1999 | rev = self.rev(node) |
|
2000 | rev = self.rev(node) | |
2000 | # the revlog's flag for this revision |
|
2001 | # the revlog's flag for this revision | |
2001 | # (usually alter its state or content) |
|
2002 | # (usually alter its state or content) | |
2002 | flags = self.flags(rev) |
|
2003 | flags = self.flags(rev) | |
2003 |
|
2004 | |||
2004 | if validated and flags == REVIDX_DEFAULT_FLAGS: |
|
2005 | if validated and flags == REVIDX_DEFAULT_FLAGS: | |
2005 | # no extra flags set, no flag processor runs, text = rawtext |
|
2006 | # no extra flags set, no flag processor runs, text = rawtext | |
2006 | return rawtext |
|
2007 | return rawtext | |
2007 |
|
2008 | |||
2008 | if raw: |
|
2009 | if raw: | |
2009 | validatehash = flagutil.processflagsraw(self, rawtext, flags) |
|
2010 | validatehash = flagutil.processflagsraw(self, rawtext, flags) | |
2010 | text = rawtext |
|
2011 | text = rawtext | |
2011 | else: |
|
2012 | else: | |
2012 | r = flagutil.processflagsread(self, rawtext, flags) |
|
2013 | r = flagutil.processflagsread(self, rawtext, flags) | |
2013 | text, validatehash = r |
|
2014 | text, validatehash = r | |
2014 | if validatehash: |
|
2015 | if validatehash: | |
2015 | self.checkhash(text, node, rev=rev) |
|
2016 | self.checkhash(text, node, rev=rev) | |
2016 | if not validated: |
|
2017 | if not validated: | |
2017 | self._revisioncache = (node, rev, rawtext) |
|
2018 | self._revisioncache = (node, rev, rawtext) | |
2018 |
|
2019 | |||
2019 | return text |
|
2020 | return text | |
2020 |
|
2021 | |||
2021 | def _rawtext(self, node, rev, _df=None): |
|
2022 | def _rawtext(self, node, rev, _df=None): | |
2022 | """return the possibly unvalidated rawtext for a revision |
|
2023 | """return the possibly unvalidated rawtext for a revision | |
2023 |
|
2024 | |||
2024 | returns (rev, rawtext, validated) |
|
2025 | returns (rev, rawtext, validated) | |
2025 | """ |
|
2026 | """ | |
2026 |
|
2027 | |||
2027 | # revision in the cache (could be useful to apply delta) |
|
2028 | # revision in the cache (could be useful to apply delta) | |
2028 | cachedrev = None |
|
2029 | cachedrev = None | |
2029 | # An intermediate text to apply deltas to |
|
2030 | # An intermediate text to apply deltas to | |
2030 | basetext = None |
|
2031 | basetext = None | |
2031 |
|
2032 | |||
2032 | # Check if we have the entry in cache |
|
2033 | # Check if we have the entry in cache | |
2033 | # The cache entry looks like (node, rev, rawtext) |
|
2034 | # The cache entry looks like (node, rev, rawtext) | |
2034 | if self._revisioncache: |
|
2035 | if self._revisioncache: | |
2035 | if self._revisioncache[0] == node: |
|
2036 | if self._revisioncache[0] == node: | |
2036 | return (rev, self._revisioncache[2], True) |
|
2037 | return (rev, self._revisioncache[2], True) | |
2037 | cachedrev = self._revisioncache[1] |
|
2038 | cachedrev = self._revisioncache[1] | |
2038 |
|
2039 | |||
2039 | if rev is None: |
|
2040 | if rev is None: | |
2040 | rev = self.rev(node) |
|
2041 | rev = self.rev(node) | |
2041 |
|
2042 | |||
2042 | chain, stopped = self._deltachain(rev, stoprev=cachedrev) |
|
2043 | chain, stopped = self._deltachain(rev, stoprev=cachedrev) | |
2043 | if stopped: |
|
2044 | if stopped: | |
2044 | basetext = self._revisioncache[2] |
|
2045 | basetext = self._revisioncache[2] | |
2045 |
|
2046 | |||
2046 | # drop cache to save memory, the caller is expected to |
|
2047 | # drop cache to save memory, the caller is expected to | |
2047 | # update self._revisioncache after validating the text |
|
2048 | # update self._revisioncache after validating the text | |
2048 | self._revisioncache = None |
|
2049 | self._revisioncache = None | |
2049 |
|
2050 | |||
2050 | targetsize = None |
|
2051 | targetsize = None | |
2051 | rawsize = self.index[rev][2] |
|
2052 | rawsize = self.index[rev][2] | |
2052 | if 0 <= rawsize: |
|
2053 | if 0 <= rawsize: | |
2053 | targetsize = 4 * rawsize |
|
2054 | targetsize = 4 * rawsize | |
2054 |
|
2055 | |||
2055 | bins = self._chunks(chain, df=_df, targetsize=targetsize) |
|
2056 | bins = self._chunks(chain, df=_df, targetsize=targetsize) | |
2056 | if basetext is None: |
|
2057 | if basetext is None: | |
2057 | basetext = bytes(bins[0]) |
|
2058 | basetext = bytes(bins[0]) | |
2058 | bins = bins[1:] |
|
2059 | bins = bins[1:] | |
2059 |
|
2060 | |||
2060 | rawtext = mdiff.patches(basetext, bins) |
|
2061 | rawtext = mdiff.patches(basetext, bins) | |
2061 | del basetext # let us have a chance to free memory early |
|
2062 | del basetext # let us have a chance to free memory early | |
2062 | return (rev, rawtext, False) |
|
2063 | return (rev, rawtext, False) | |
2063 |
|
2064 | |||
2064 | def _sidedata(self, rev): |
|
2065 | def _sidedata(self, rev): | |
2065 | """Return the sidedata for a given revision number.""" |
|
2066 | """Return the sidedata for a given revision number.""" | |
2066 | index_entry = self.index[rev] |
|
2067 | index_entry = self.index[rev] | |
2067 | sidedata_offset = index_entry[8] |
|
2068 | sidedata_offset = index_entry[8] | |
2068 | sidedata_size = index_entry[9] |
|
2069 | sidedata_size = index_entry[9] | |
2069 |
|
2070 | |||
2070 | if self._inline: |
|
2071 | if self._inline: | |
2071 | sidedata_offset += self.index.entry_size * (1 + rev) |
|
2072 | sidedata_offset += self.index.entry_size * (1 + rev) | |
2072 | if sidedata_size == 0: |
|
2073 | if sidedata_size == 0: | |
2073 | return {} |
|
2074 | return {} | |
2074 |
|
2075 | |||
2075 | if self._docket.sidedata_end < sidedata_offset + sidedata_size: |
|
2076 | if self._docket.sidedata_end < sidedata_offset + sidedata_size: | |
2076 | filename = self._sidedatafile |
|
2077 | filename = self._sidedatafile | |
2077 | end = self._docket.sidedata_end |
|
2078 | end = self._docket.sidedata_end | |
2078 | offset = sidedata_offset |
|
2079 | offset = sidedata_offset | |
2079 | length = sidedata_size |
|
2080 | length = sidedata_size | |
2080 | m = FILE_TOO_SHORT_MSG % (filename, length, offset, end) |
|
2081 | m = FILE_TOO_SHORT_MSG % (filename, length, offset, end) | |
2081 | raise error.RevlogError(m) |
|
2082 | raise error.RevlogError(m) | |
2082 |
|
2083 | |||
2083 | comp_segment = self._segmentfile_sidedata.read_chunk( |
|
2084 | comp_segment = self._segmentfile_sidedata.read_chunk( | |
2084 | sidedata_offset, sidedata_size |
|
2085 | sidedata_offset, sidedata_size | |
2085 | ) |
|
2086 | ) | |
2086 |
|
2087 | |||
2087 | comp = self.index[rev][11] |
|
2088 | comp = self.index[rev][11] | |
2088 | if comp == COMP_MODE_PLAIN: |
|
2089 | if comp == COMP_MODE_PLAIN: | |
2089 | segment = comp_segment |
|
2090 | segment = comp_segment | |
2090 | elif comp == COMP_MODE_DEFAULT: |
|
2091 | elif comp == COMP_MODE_DEFAULT: | |
2091 | segment = self._decompressor(comp_segment) |
|
2092 | segment = self._decompressor(comp_segment) | |
2092 | elif comp == COMP_MODE_INLINE: |
|
2093 | elif comp == COMP_MODE_INLINE: | |
2093 | segment = self.decompress(comp_segment) |
|
2094 | segment = self.decompress(comp_segment) | |
2094 | else: |
|
2095 | else: | |
2095 | msg = b'unknown compression mode %d' |
|
2096 | msg = b'unknown compression mode %d' | |
2096 | msg %= comp |
|
2097 | msg %= comp | |
2097 | raise error.RevlogError(msg) |
|
2098 | raise error.RevlogError(msg) | |
2098 |
|
2099 | |||
2099 | sidedata = sidedatautil.deserialize_sidedata(segment) |
|
2100 | sidedata = sidedatautil.deserialize_sidedata(segment) | |
2100 | return sidedata |
|
2101 | return sidedata | |
2101 |
|
2102 | |||
2102 | def rawdata(self, nodeorrev, _df=None): |
|
2103 | def rawdata(self, nodeorrev, _df=None): | |
2103 | """return an uncompressed raw data of a given node or revision number. |
|
2104 | """return an uncompressed raw data of a given node or revision number. | |
2104 |
|
2105 | |||
2105 | _df - an existing file handle to read from. (internal-only) |
|
2106 | _df - an existing file handle to read from. (internal-only) | |
2106 | """ |
|
2107 | """ | |
2107 | return self._revisiondata(nodeorrev, _df, raw=True) |
|
2108 | return self._revisiondata(nodeorrev, _df, raw=True) | |
2108 |
|
2109 | |||
2109 | def hash(self, text, p1, p2): |
|
2110 | def hash(self, text, p1, p2): | |
2110 | """Compute a node hash. |
|
2111 | """Compute a node hash. | |
2111 |
|
2112 | |||
2112 | Available as a function so that subclasses can replace the hash |
|
2113 | Available as a function so that subclasses can replace the hash | |
2113 | as needed. |
|
2114 | as needed. | |
2114 | """ |
|
2115 | """ | |
2115 | return storageutil.hashrevisionsha1(text, p1, p2) |
|
2116 | return storageutil.hashrevisionsha1(text, p1, p2) | |
2116 |
|
2117 | |||
2117 | def checkhash(self, text, node, p1=None, p2=None, rev=None): |
|
2118 | def checkhash(self, text, node, p1=None, p2=None, rev=None): | |
2118 | """Check node hash integrity. |
|
2119 | """Check node hash integrity. | |
2119 |
|
2120 | |||
2120 | Available as a function so that subclasses can extend hash mismatch |
|
2121 | Available as a function so that subclasses can extend hash mismatch | |
2121 | behaviors as needed. |
|
2122 | behaviors as needed. | |
2122 | """ |
|
2123 | """ | |
2123 | try: |
|
2124 | try: | |
2124 | if p1 is None and p2 is None: |
|
2125 | if p1 is None and p2 is None: | |
2125 | p1, p2 = self.parents(node) |
|
2126 | p1, p2 = self.parents(node) | |
2126 | if node != self.hash(text, p1, p2): |
|
2127 | if node != self.hash(text, p1, p2): | |
2127 | # Clear the revision cache on hash failure. The revision cache |
|
2128 | # Clear the revision cache on hash failure. The revision cache | |
2128 | # only stores the raw revision and clearing the cache does have |
|
2129 | # only stores the raw revision and clearing the cache does have | |
2129 | # the side-effect that we won't have a cache hit when the raw |
|
2130 | # the side-effect that we won't have a cache hit when the raw | |
2130 | # revision data is accessed. But this case should be rare and |
|
2131 | # revision data is accessed. But this case should be rare and | |
2131 | # it is extra work to teach the cache about the hash |
|
2132 | # it is extra work to teach the cache about the hash | |
2132 | # verification state. |
|
2133 | # verification state. | |
2133 | if self._revisioncache and self._revisioncache[0] == node: |
|
2134 | if self._revisioncache and self._revisioncache[0] == node: | |
2134 | self._revisioncache = None |
|
2135 | self._revisioncache = None | |
2135 |
|
2136 | |||
2136 | revornode = rev |
|
2137 | revornode = rev | |
2137 | if revornode is None: |
|
2138 | if revornode is None: | |
2138 | revornode = templatefilters.short(hex(node)) |
|
2139 | revornode = templatefilters.short(hex(node)) | |
2139 | raise error.RevlogError( |
|
2140 | raise error.RevlogError( | |
2140 | _(b"integrity check failed on %s:%s") |
|
2141 | _(b"integrity check failed on %s:%s") | |
2141 | % (self.display_id, pycompat.bytestr(revornode)) |
|
2142 | % (self.display_id, pycompat.bytestr(revornode)) | |
2142 | ) |
|
2143 | ) | |
2143 | except error.RevlogError: |
|
2144 | except error.RevlogError: | |
2144 | if self._censorable and storageutil.iscensoredtext(text): |
|
2145 | if self._censorable and storageutil.iscensoredtext(text): | |
2145 | raise error.CensoredNodeError(self.display_id, node, text) |
|
2146 | raise error.CensoredNodeError(self.display_id, node, text) | |
2146 | raise |
|
2147 | raise | |
2147 |
|
2148 | |||
2148 | @property |
|
2149 | @property | |
2149 | def _split_index_file(self): |
|
2150 | def _split_index_file(self): | |
2150 | """the path where to expect the index of an ongoing splitting operation |
|
2151 | """the path where to expect the index of an ongoing splitting operation | |
2151 |
|
2152 | |||
2152 | The file will only exist if a splitting operation is in progress, but |
|
2153 | The file will only exist if a splitting operation is in progress, but | |
2153 | it is always expected at the same location.""" |
|
2154 | it is always expected at the same location.""" | |
2154 | parts = self.radix.split(b'/') |
|
2155 | parts = self.radix.split(b'/') | |
2155 | if len(parts) > 1: |
|
2156 | if len(parts) > 1: | |
2156 | # adds a '-s' prefix to the ``data/` or `meta/` base |
|
2157 | # adds a '-s' prefix to the ``data/` or `meta/` base | |
2157 | head = parts[0] + b'-s' |
|
2158 | head = parts[0] + b'-s' | |
2158 | mids = parts[1:-1] |
|
2159 | mids = parts[1:-1] | |
2159 | tail = parts[-1] + b'.i' |
|
2160 | tail = parts[-1] + b'.i' | |
2160 | pieces = [head] + mids + [tail] |
|
2161 | pieces = [head] + mids + [tail] | |
2161 | return b'/'.join(pieces) |
|
2162 | return b'/'.join(pieces) | |
2162 | else: |
|
2163 | else: | |
2163 | # the revlog is stored at the root of the store (changelog or |
|
2164 | # the revlog is stored at the root of the store (changelog or | |
2164 | # manifest), no risk of collision. |
|
2165 | # manifest), no risk of collision. | |
2165 | return self.radix + b'.i.s' |
|
2166 | return self.radix + b'.i.s' | |
2166 |
|
2167 | |||
2167 | def _enforceinlinesize(self, tr, side_write=True): |
|
2168 | def _enforceinlinesize(self, tr, side_write=True): | |
2168 | """Check if the revlog is too big for inline and convert if so. |
|
2169 | """Check if the revlog is too big for inline and convert if so. | |
2169 |
|
2170 | |||
2170 | This should be called after revisions are added to the revlog. If the |
|
2171 | This should be called after revisions are added to the revlog. If the | |
2171 | revlog has grown too large to be an inline revlog, it will convert it |
|
2172 | revlog has grown too large to be an inline revlog, it will convert it | |
2172 | to use multiple index and data files. |
|
2173 | to use multiple index and data files. | |
2173 | """ |
|
2174 | """ | |
2174 | tiprev = len(self) - 1 |
|
2175 | tiprev = len(self) - 1 | |
2175 | total_size = self.start(tiprev) + self.length(tiprev) |
|
2176 | total_size = self.start(tiprev) + self.length(tiprev) | |
2176 | if not self._inline or total_size < _maxinline: |
|
2177 | if not self._inline or total_size < _maxinline: | |
2177 | return |
|
2178 | return | |
2178 |
|
2179 | |||
2179 | troffset = tr.findoffset(self._indexfile) |
|
2180 | troffset = tr.findoffset(self._indexfile) | |
2180 | if troffset is None: |
|
2181 | if troffset is None: | |
2181 | raise error.RevlogError( |
|
2182 | raise error.RevlogError( | |
2182 | _(b"%s not found in the transaction") % self._indexfile |
|
2183 | _(b"%s not found in the transaction") % self._indexfile | |
2183 | ) |
|
2184 | ) | |
2184 | if troffset: |
|
2185 | if troffset: | |
2185 | tr.addbackup(self._indexfile, for_offset=True) |
|
2186 | tr.addbackup(self._indexfile, for_offset=True) | |
2186 | tr.add(self._datafile, 0) |
|
2187 | tr.add(self._datafile, 0) | |
2187 |
|
2188 | |||
2188 | existing_handles = False |
|
2189 | existing_handles = False | |
2189 | if self._writinghandles is not None: |
|
2190 | if self._writinghandles is not None: | |
2190 | existing_handles = True |
|
2191 | existing_handles = True | |
2191 | fp = self._writinghandles[0] |
|
2192 | fp = self._writinghandles[0] | |
2192 | fp.flush() |
|
2193 | fp.flush() | |
2193 | fp.close() |
|
2194 | fp.close() | |
2194 | # We can't use the cached file handle after close(). So prevent |
|
2195 | # We can't use the cached file handle after close(). So prevent | |
2195 | # its usage. |
|
2196 | # its usage. | |
2196 | self._writinghandles = None |
|
2197 | self._writinghandles = None | |
2197 | self._segmentfile.writing_handle = None |
|
2198 | self._segmentfile.writing_handle = None | |
2198 | # No need to deal with sidedata writing handle as it is only |
|
2199 | # No need to deal with sidedata writing handle as it is only | |
2199 | # relevant with revlog-v2 which is never inline, not reaching |
|
2200 | # relevant with revlog-v2 which is never inline, not reaching | |
2200 | # this code |
|
2201 | # this code | |
2201 | if side_write: |
|
2202 | if side_write: | |
2202 | old_index_file_path = self._indexfile |
|
2203 | old_index_file_path = self._indexfile | |
2203 | new_index_file_path = self._split_index_file |
|
2204 | new_index_file_path = self._split_index_file | |
2204 | opener = self.opener |
|
2205 | opener = self.opener | |
2205 | weak_self = weakref.ref(self) |
|
2206 | weak_self = weakref.ref(self) | |
2206 |
|
2207 | |||
2207 | # the "split" index replace the real index when the transaction is finalized |
|
2208 | # the "split" index replace the real index when the transaction is finalized | |
2208 | def finalize_callback(tr): |
|
2209 | def finalize_callback(tr): | |
2209 | opener.rename( |
|
2210 | opener.rename( | |
2210 | new_index_file_path, |
|
2211 | new_index_file_path, | |
2211 | old_index_file_path, |
|
2212 | old_index_file_path, | |
2212 | checkambig=True, |
|
2213 | checkambig=True, | |
2213 | ) |
|
2214 | ) | |
2214 | maybe_self = weak_self() |
|
2215 | maybe_self = weak_self() | |
2215 | if maybe_self is not None: |
|
2216 | if maybe_self is not None: | |
2216 | maybe_self._indexfile = old_index_file_path |
|
2217 | maybe_self._indexfile = old_index_file_path | |
2217 |
|
2218 | |||
2218 | def abort_callback(tr): |
|
2219 | def abort_callback(tr): | |
2219 | maybe_self = weak_self() |
|
2220 | maybe_self = weak_self() | |
2220 | if maybe_self is not None: |
|
2221 | if maybe_self is not None: | |
2221 | maybe_self._indexfile = old_index_file_path |
|
2222 | maybe_self._indexfile = old_index_file_path | |
2222 |
|
2223 | |||
2223 | tr.registertmp(new_index_file_path) |
|
2224 | tr.registertmp(new_index_file_path) | |
2224 | if self.target[1] is not None: |
|
2225 | if self.target[1] is not None: | |
2225 | callback_id = b'000-revlog-split-%d-%s' % self.target |
|
2226 | callback_id = b'000-revlog-split-%d-%s' % self.target | |
2226 | else: |
|
2227 | else: | |
2227 | callback_id = b'000-revlog-split-%d' % self.target[0] |
|
2228 | callback_id = b'000-revlog-split-%d' % self.target[0] | |
2228 | tr.addfinalize(callback_id, finalize_callback) |
|
2229 | tr.addfinalize(callback_id, finalize_callback) | |
2229 | tr.addabort(callback_id, abort_callback) |
|
2230 | tr.addabort(callback_id, abort_callback) | |
2230 |
|
2231 | |||
2231 | new_dfh = self._datafp(b'w+') |
|
2232 | new_dfh = self._datafp(b'w+') | |
2232 | new_dfh.truncate(0) # drop any potentially existing data |
|
2233 | new_dfh.truncate(0) # drop any potentially existing data | |
2233 | try: |
|
2234 | try: | |
2234 | with self._indexfp() as read_ifh: |
|
2235 | with self._indexfp() as read_ifh: | |
2235 | for r in self: |
|
2236 | for r in self: | |
2236 | new_dfh.write(self._getsegmentforrevs(r, r, df=read_ifh)[1]) |
|
2237 | new_dfh.write(self._getsegmentforrevs(r, r, df=read_ifh)[1]) | |
2237 | new_dfh.flush() |
|
2238 | new_dfh.flush() | |
2238 |
|
2239 | |||
2239 | if side_write: |
|
2240 | if side_write: | |
2240 | self._indexfile = new_index_file_path |
|
2241 | self._indexfile = new_index_file_path | |
2241 | with self.__index_new_fp() as fp: |
|
2242 | with self.__index_new_fp() as fp: | |
2242 | self._format_flags &= ~FLAG_INLINE_DATA |
|
2243 | self._format_flags &= ~FLAG_INLINE_DATA | |
2243 | self._inline = False |
|
2244 | self._inline = False | |
2244 | for i in self: |
|
2245 | for i in self: | |
2245 | e = self.index.entry_binary(i) |
|
2246 | e = self.index.entry_binary(i) | |
2246 | if i == 0 and self._docket is None: |
|
2247 | if i == 0 and self._docket is None: | |
2247 | header = self._format_flags | self._format_version |
|
2248 | header = self._format_flags | self._format_version | |
2248 | header = self.index.pack_header(header) |
|
2249 | header = self.index.pack_header(header) | |
2249 | e = header + e |
|
2250 | e = header + e | |
2250 | fp.write(e) |
|
2251 | fp.write(e) | |
2251 | if self._docket is not None: |
|
2252 | if self._docket is not None: | |
2252 | self._docket.index_end = fp.tell() |
|
2253 | self._docket.index_end = fp.tell() | |
2253 |
|
2254 | |||
2254 | # If we don't use side-write, the temp file replace the real |
|
2255 | # If we don't use side-write, the temp file replace the real | |
2255 | # index when we exit the context manager |
|
2256 | # index when we exit the context manager | |
2256 |
|
2257 | |||
2257 | nodemaputil.setup_persistent_nodemap(tr, self) |
|
2258 | nodemaputil.setup_persistent_nodemap(tr, self) | |
2258 | self._segmentfile = randomaccessfile.randomaccessfile( |
|
2259 | self._segmentfile = randomaccessfile.randomaccessfile( | |
2259 | self.opener, |
|
2260 | self.opener, | |
2260 | self._datafile, |
|
2261 | self._datafile, | |
2261 | self._chunkcachesize, |
|
2262 | self._chunkcachesize, | |
2262 | ) |
|
2263 | ) | |
2263 |
|
2264 | |||
2264 | if existing_handles: |
|
2265 | if existing_handles: | |
2265 | # switched from inline to conventional reopen the index |
|
2266 | # switched from inline to conventional reopen the index | |
2266 | ifh = self.__index_write_fp() |
|
2267 | ifh = self.__index_write_fp() | |
2267 | self._writinghandles = (ifh, new_dfh, None) |
|
2268 | self._writinghandles = (ifh, new_dfh, None) | |
2268 | self._segmentfile.writing_handle = new_dfh |
|
2269 | self._segmentfile.writing_handle = new_dfh | |
2269 | new_dfh = None |
|
2270 | new_dfh = None | |
2270 | # No need to deal with sidedata writing handle as it is only |
|
2271 | # No need to deal with sidedata writing handle as it is only | |
2271 | # relevant with revlog-v2 which is never inline, not reaching |
|
2272 | # relevant with revlog-v2 which is never inline, not reaching | |
2272 | # this code |
|
2273 | # this code | |
2273 | finally: |
|
2274 | finally: | |
2274 | if new_dfh is not None: |
|
2275 | if new_dfh is not None: | |
2275 | new_dfh.close() |
|
2276 | new_dfh.close() | |
2276 |
|
2277 | |||
2277 | def _nodeduplicatecallback(self, transaction, node): |
|
2278 | def _nodeduplicatecallback(self, transaction, node): | |
2278 | """called when trying to add a node already stored.""" |
|
2279 | """called when trying to add a node already stored.""" | |
2279 |
|
2280 | |||
2280 | @contextlib.contextmanager |
|
2281 | @contextlib.contextmanager | |
2281 | def reading(self): |
|
2282 | def reading(self): | |
2282 | """Context manager that keeps data and sidedata files open for reading""" |
|
2283 | """Context manager that keeps data and sidedata files open for reading""" | |
2283 | with self._segmentfile.reading(): |
|
2284 | with self._segmentfile.reading(): | |
2284 | with self._segmentfile_sidedata.reading(): |
|
2285 | with self._segmentfile_sidedata.reading(): | |
2285 | yield |
|
2286 | yield | |
2286 |
|
2287 | |||
2287 | @contextlib.contextmanager |
|
2288 | @contextlib.contextmanager | |
2288 | def _writing(self, transaction): |
|
2289 | def _writing(self, transaction): | |
2289 | if self._trypending: |
|
2290 | if self._trypending: | |
2290 | msg = b'try to write in a `trypending` revlog: %s' |
|
2291 | msg = b'try to write in a `trypending` revlog: %s' | |
2291 | msg %= self.display_id |
|
2292 | msg %= self.display_id | |
2292 | raise error.ProgrammingError(msg) |
|
2293 | raise error.ProgrammingError(msg) | |
2293 | if self._writinghandles is not None: |
|
2294 | if self._writinghandles is not None: | |
2294 | yield |
|
2295 | yield | |
2295 | else: |
|
2296 | else: | |
2296 | ifh = dfh = sdfh = None |
|
2297 | ifh = dfh = sdfh = None | |
2297 | try: |
|
2298 | try: | |
2298 | r = len(self) |
|
2299 | r = len(self) | |
2299 | # opening the data file. |
|
2300 | # opening the data file. | |
2300 | dsize = 0 |
|
2301 | dsize = 0 | |
2301 | if r: |
|
2302 | if r: | |
2302 | dsize = self.end(r - 1) |
|
2303 | dsize = self.end(r - 1) | |
2303 | dfh = None |
|
2304 | dfh = None | |
2304 | if not self._inline: |
|
2305 | if not self._inline: | |
2305 | try: |
|
2306 | try: | |
2306 | dfh = self._datafp(b"r+") |
|
2307 | dfh = self._datafp(b"r+") | |
2307 | if self._docket is None: |
|
2308 | if self._docket is None: | |
2308 | dfh.seek(0, os.SEEK_END) |
|
2309 | dfh.seek(0, os.SEEK_END) | |
2309 | else: |
|
2310 | else: | |
2310 | dfh.seek(self._docket.data_end, os.SEEK_SET) |
|
2311 | dfh.seek(self._docket.data_end, os.SEEK_SET) | |
2311 | except FileNotFoundError: |
|
2312 | except FileNotFoundError: | |
2312 | dfh = self._datafp(b"w+") |
|
2313 | dfh = self._datafp(b"w+") | |
2313 | transaction.add(self._datafile, dsize) |
|
2314 | transaction.add(self._datafile, dsize) | |
2314 | if self._sidedatafile is not None: |
|
2315 | if self._sidedatafile is not None: | |
2315 | # revlog-v2 does not inline, help Pytype |
|
2316 | # revlog-v2 does not inline, help Pytype | |
2316 | assert dfh is not None |
|
2317 | assert dfh is not None | |
2317 | try: |
|
2318 | try: | |
2318 | sdfh = self.opener(self._sidedatafile, mode=b"r+") |
|
2319 | sdfh = self.opener(self._sidedatafile, mode=b"r+") | |
2319 | dfh.seek(self._docket.sidedata_end, os.SEEK_SET) |
|
2320 | dfh.seek(self._docket.sidedata_end, os.SEEK_SET) | |
2320 | except FileNotFoundError: |
|
2321 | except FileNotFoundError: | |
2321 | sdfh = self.opener(self._sidedatafile, mode=b"w+") |
|
2322 | sdfh = self.opener(self._sidedatafile, mode=b"w+") | |
2322 | transaction.add( |
|
2323 | transaction.add( | |
2323 | self._sidedatafile, self._docket.sidedata_end |
|
2324 | self._sidedatafile, self._docket.sidedata_end | |
2324 | ) |
|
2325 | ) | |
2325 |
|
2326 | |||
2326 | # opening the index file. |
|
2327 | # opening the index file. | |
2327 | isize = r * self.index.entry_size |
|
2328 | isize = r * self.index.entry_size | |
2328 | ifh = self.__index_write_fp() |
|
2329 | ifh = self.__index_write_fp() | |
2329 | if self._inline: |
|
2330 | if self._inline: | |
2330 | transaction.add(self._indexfile, dsize + isize) |
|
2331 | transaction.add(self._indexfile, dsize + isize) | |
2331 | else: |
|
2332 | else: | |
2332 | transaction.add(self._indexfile, isize) |
|
2333 | transaction.add(self._indexfile, isize) | |
2333 | # exposing all file handle for writing. |
|
2334 | # exposing all file handle for writing. | |
2334 | self._writinghandles = (ifh, dfh, sdfh) |
|
2335 | self._writinghandles = (ifh, dfh, sdfh) | |
2335 | self._segmentfile.writing_handle = ifh if self._inline else dfh |
|
2336 | self._segmentfile.writing_handle = ifh if self._inline else dfh | |
2336 | self._segmentfile_sidedata.writing_handle = sdfh |
|
2337 | self._segmentfile_sidedata.writing_handle = sdfh | |
2337 | yield |
|
2338 | yield | |
2338 | if self._docket is not None: |
|
2339 | if self._docket is not None: | |
2339 | self._write_docket(transaction) |
|
2340 | self._write_docket(transaction) | |
2340 | finally: |
|
2341 | finally: | |
2341 | self._writinghandles = None |
|
2342 | self._writinghandles = None | |
2342 | self._segmentfile.writing_handle = None |
|
2343 | self._segmentfile.writing_handle = None | |
2343 | self._segmentfile_sidedata.writing_handle = None |
|
2344 | self._segmentfile_sidedata.writing_handle = None | |
2344 | if dfh is not None: |
|
2345 | if dfh is not None: | |
2345 | dfh.close() |
|
2346 | dfh.close() | |
2346 | if sdfh is not None: |
|
2347 | if sdfh is not None: | |
2347 | sdfh.close() |
|
2348 | sdfh.close() | |
2348 | # closing the index file last to avoid exposing referent to |
|
2349 | # closing the index file last to avoid exposing referent to | |
2349 | # potential unflushed data content. |
|
2350 | # potential unflushed data content. | |
2350 | if ifh is not None: |
|
2351 | if ifh is not None: | |
2351 | ifh.close() |
|
2352 | ifh.close() | |
2352 |
|
2353 | |||
2353 | def _write_docket(self, transaction): |
|
2354 | def _write_docket(self, transaction): | |
2354 | """write the current docket on disk |
|
2355 | """write the current docket on disk | |
2355 |
|
2356 | |||
2356 | Exist as a method to help changelog to implement transaction logic |
|
2357 | Exist as a method to help changelog to implement transaction logic | |
2357 |
|
2358 | |||
2358 | We could also imagine using the same transaction logic for all revlog |
|
2359 | We could also imagine using the same transaction logic for all revlog | |
2359 | since docket are cheap.""" |
|
2360 | since docket are cheap.""" | |
2360 | self._docket.write(transaction) |
|
2361 | self._docket.write(transaction) | |
2361 |
|
2362 | |||
2362 | def addrevision( |
|
2363 | def addrevision( | |
2363 | self, |
|
2364 | self, | |
2364 | text, |
|
2365 | text, | |
2365 | transaction, |
|
2366 | transaction, | |
2366 | link, |
|
2367 | link, | |
2367 | p1, |
|
2368 | p1, | |
2368 | p2, |
|
2369 | p2, | |
2369 | cachedelta=None, |
|
2370 | cachedelta=None, | |
2370 | node=None, |
|
2371 | node=None, | |
2371 | flags=REVIDX_DEFAULT_FLAGS, |
|
2372 | flags=REVIDX_DEFAULT_FLAGS, | |
2372 | deltacomputer=None, |
|
2373 | deltacomputer=None, | |
2373 | sidedata=None, |
|
2374 | sidedata=None, | |
2374 | ): |
|
2375 | ): | |
2375 | """add a revision to the log |
|
2376 | """add a revision to the log | |
2376 |
|
2377 | |||
2377 | text - the revision data to add |
|
2378 | text - the revision data to add | |
2378 | transaction - the transaction object used for rollback |
|
2379 | transaction - the transaction object used for rollback | |
2379 | link - the linkrev data to add |
|
2380 | link - the linkrev data to add | |
2380 | p1, p2 - the parent nodeids of the revision |
|
2381 | p1, p2 - the parent nodeids of the revision | |
2381 | cachedelta - an optional precomputed delta |
|
2382 | cachedelta - an optional precomputed delta | |
2382 | node - nodeid of revision; typically node is not specified, and it is |
|
2383 | node - nodeid of revision; typically node is not specified, and it is | |
2383 | computed by default as hash(text, p1, p2), however subclasses might |
|
2384 | computed by default as hash(text, p1, p2), however subclasses might | |
2384 | use different hashing method (and override checkhash() in such case) |
|
2385 | use different hashing method (and override checkhash() in such case) | |
2385 | flags - the known flags to set on the revision |
|
2386 | flags - the known flags to set on the revision | |
2386 | deltacomputer - an optional deltacomputer instance shared between |
|
2387 | deltacomputer - an optional deltacomputer instance shared between | |
2387 | multiple calls |
|
2388 | multiple calls | |
2388 | """ |
|
2389 | """ | |
2389 | if link == nullrev: |
|
2390 | if link == nullrev: | |
2390 | raise error.RevlogError( |
|
2391 | raise error.RevlogError( | |
2391 | _(b"attempted to add linkrev -1 to %s") % self.display_id |
|
2392 | _(b"attempted to add linkrev -1 to %s") % self.display_id | |
2392 | ) |
|
2393 | ) | |
2393 |
|
2394 | |||
2394 | if sidedata is None: |
|
2395 | if sidedata is None: | |
2395 | sidedata = {} |
|
2396 | sidedata = {} | |
2396 | elif sidedata and not self.hassidedata: |
|
2397 | elif sidedata and not self.hassidedata: | |
2397 | raise error.ProgrammingError( |
|
2398 | raise error.ProgrammingError( | |
2398 | _(b"trying to add sidedata to a revlog who don't support them") |
|
2399 | _(b"trying to add sidedata to a revlog who don't support them") | |
2399 | ) |
|
2400 | ) | |
2400 |
|
2401 | |||
2401 | if flags: |
|
2402 | if flags: | |
2402 | node = node or self.hash(text, p1, p2) |
|
2403 | node = node or self.hash(text, p1, p2) | |
2403 |
|
2404 | |||
2404 | rawtext, validatehash = flagutil.processflagswrite(self, text, flags) |
|
2405 | rawtext, validatehash = flagutil.processflagswrite(self, text, flags) | |
2405 |
|
2406 | |||
2406 | # If the flag processor modifies the revision data, ignore any provided |
|
2407 | # If the flag processor modifies the revision data, ignore any provided | |
2407 | # cachedelta. |
|
2408 | # cachedelta. | |
2408 | if rawtext != text: |
|
2409 | if rawtext != text: | |
2409 | cachedelta = None |
|
2410 | cachedelta = None | |
2410 |
|
2411 | |||
2411 | if len(rawtext) > _maxentrysize: |
|
2412 | if len(rawtext) > _maxentrysize: | |
2412 | raise error.RevlogError( |
|
2413 | raise error.RevlogError( | |
2413 | _( |
|
2414 | _( | |
2414 | b"%s: size of %d bytes exceeds maximum revlog storage of 2GiB" |
|
2415 | b"%s: size of %d bytes exceeds maximum revlog storage of 2GiB" | |
2415 | ) |
|
2416 | ) | |
2416 | % (self.display_id, len(rawtext)) |
|
2417 | % (self.display_id, len(rawtext)) | |
2417 | ) |
|
2418 | ) | |
2418 |
|
2419 | |||
2419 | node = node or self.hash(rawtext, p1, p2) |
|
2420 | node = node or self.hash(rawtext, p1, p2) | |
2420 | rev = self.index.get_rev(node) |
|
2421 | rev = self.index.get_rev(node) | |
2421 | if rev is not None: |
|
2422 | if rev is not None: | |
2422 | return rev |
|
2423 | return rev | |
2423 |
|
2424 | |||
2424 | if validatehash: |
|
2425 | if validatehash: | |
2425 | self.checkhash(rawtext, node, p1=p1, p2=p2) |
|
2426 | self.checkhash(rawtext, node, p1=p1, p2=p2) | |
2426 |
|
2427 | |||
2427 | return self.addrawrevision( |
|
2428 | return self.addrawrevision( | |
2428 | rawtext, |
|
2429 | rawtext, | |
2429 | transaction, |
|
2430 | transaction, | |
2430 | link, |
|
2431 | link, | |
2431 | p1, |
|
2432 | p1, | |
2432 | p2, |
|
2433 | p2, | |
2433 | node, |
|
2434 | node, | |
2434 | flags, |
|
2435 | flags, | |
2435 | cachedelta=cachedelta, |
|
2436 | cachedelta=cachedelta, | |
2436 | deltacomputer=deltacomputer, |
|
2437 | deltacomputer=deltacomputer, | |
2437 | sidedata=sidedata, |
|
2438 | sidedata=sidedata, | |
2438 | ) |
|
2439 | ) | |
2439 |
|
2440 | |||
2440 | def addrawrevision( |
|
2441 | def addrawrevision( | |
2441 | self, |
|
2442 | self, | |
2442 | rawtext, |
|
2443 | rawtext, | |
2443 | transaction, |
|
2444 | transaction, | |
2444 | link, |
|
2445 | link, | |
2445 | p1, |
|
2446 | p1, | |
2446 | p2, |
|
2447 | p2, | |
2447 | node, |
|
2448 | node, | |
2448 | flags, |
|
2449 | flags, | |
2449 | cachedelta=None, |
|
2450 | cachedelta=None, | |
2450 | deltacomputer=None, |
|
2451 | deltacomputer=None, | |
2451 | sidedata=None, |
|
2452 | sidedata=None, | |
2452 | ): |
|
2453 | ): | |
2453 | """add a raw revision with known flags, node and parents |
|
2454 | """add a raw revision with known flags, node and parents | |
2454 | useful when reusing a revision not stored in this revlog (ex: received |
|
2455 | useful when reusing a revision not stored in this revlog (ex: received | |
2455 | over wire, or read from an external bundle). |
|
2456 | over wire, or read from an external bundle). | |
2456 | """ |
|
2457 | """ | |
2457 | with self._writing(transaction): |
|
2458 | with self._writing(transaction): | |
2458 | return self._addrevision( |
|
2459 | return self._addrevision( | |
2459 | node, |
|
2460 | node, | |
2460 | rawtext, |
|
2461 | rawtext, | |
2461 | transaction, |
|
2462 | transaction, | |
2462 | link, |
|
2463 | link, | |
2463 | p1, |
|
2464 | p1, | |
2464 | p2, |
|
2465 | p2, | |
2465 | flags, |
|
2466 | flags, | |
2466 | cachedelta, |
|
2467 | cachedelta, | |
2467 | deltacomputer=deltacomputer, |
|
2468 | deltacomputer=deltacomputer, | |
2468 | sidedata=sidedata, |
|
2469 | sidedata=sidedata, | |
2469 | ) |
|
2470 | ) | |
2470 |
|
2471 | |||
2471 | def compress(self, data): |
|
2472 | def compress(self, data): | |
2472 | """Generate a possibly-compressed representation of data.""" |
|
2473 | """Generate a possibly-compressed representation of data.""" | |
2473 | if not data: |
|
2474 | if not data: | |
2474 | return b'', data |
|
2475 | return b'', data | |
2475 |
|
2476 | |||
2476 | compressed = self._compressor.compress(data) |
|
2477 | compressed = self._compressor.compress(data) | |
2477 |
|
2478 | |||
2478 | if compressed: |
|
2479 | if compressed: | |
2479 | # The revlog compressor added the header in the returned data. |
|
2480 | # The revlog compressor added the header in the returned data. | |
2480 | return b'', compressed |
|
2481 | return b'', compressed | |
2481 |
|
2482 | |||
2482 | if data[0:1] == b'\0': |
|
2483 | if data[0:1] == b'\0': | |
2483 | return b'', data |
|
2484 | return b'', data | |
2484 | return b'u', data |
|
2485 | return b'u', data | |
2485 |
|
2486 | |||
2486 | def decompress(self, data): |
|
2487 | def decompress(self, data): | |
2487 | """Decompress a revlog chunk. |
|
2488 | """Decompress a revlog chunk. | |
2488 |
|
2489 | |||
2489 | The chunk is expected to begin with a header identifying the |
|
2490 | The chunk is expected to begin with a header identifying the | |
2490 | format type so it can be routed to an appropriate decompressor. |
|
2491 | format type so it can be routed to an appropriate decompressor. | |
2491 | """ |
|
2492 | """ | |
2492 | if not data: |
|
2493 | if not data: | |
2493 | return data |
|
2494 | return data | |
2494 |
|
2495 | |||
2495 | # Revlogs are read much more frequently than they are written and many |
|
2496 | # Revlogs are read much more frequently than they are written and many | |
2496 | # chunks only take microseconds to decompress, so performance is |
|
2497 | # chunks only take microseconds to decompress, so performance is | |
2497 | # important here. |
|
2498 | # important here. | |
2498 | # |
|
2499 | # | |
2499 | # We can make a few assumptions about revlogs: |
|
2500 | # We can make a few assumptions about revlogs: | |
2500 | # |
|
2501 | # | |
2501 | # 1) the majority of chunks will be compressed (as opposed to inline |
|
2502 | # 1) the majority of chunks will be compressed (as opposed to inline | |
2502 | # raw data). |
|
2503 | # raw data). | |
2503 | # 2) decompressing *any* data will likely by at least 10x slower than |
|
2504 | # 2) decompressing *any* data will likely by at least 10x slower than | |
2504 | # returning raw inline data. |
|
2505 | # returning raw inline data. | |
2505 | # 3) we want to prioritize common and officially supported compression |
|
2506 | # 3) we want to prioritize common and officially supported compression | |
2506 | # engines |
|
2507 | # engines | |
2507 | # |
|
2508 | # | |
2508 | # It follows that we want to optimize for "decompress compressed data |
|
2509 | # It follows that we want to optimize for "decompress compressed data | |
2509 | # when encoded with common and officially supported compression engines" |
|
2510 | # when encoded with common and officially supported compression engines" | |
2510 | # case over "raw data" and "data encoded by less common or non-official |
|
2511 | # case over "raw data" and "data encoded by less common or non-official | |
2511 | # compression engines." That is why we have the inline lookup first |
|
2512 | # compression engines." That is why we have the inline lookup first | |
2512 | # followed by the compengines lookup. |
|
2513 | # followed by the compengines lookup. | |
2513 | # |
|
2514 | # | |
2514 | # According to `hg perfrevlogchunks`, this is ~0.5% faster for zlib |
|
2515 | # According to `hg perfrevlogchunks`, this is ~0.5% faster for zlib | |
2515 | # compressed chunks. And this matters for changelog and manifest reads. |
|
2516 | # compressed chunks. And this matters for changelog and manifest reads. | |
2516 | t = data[0:1] |
|
2517 | t = data[0:1] | |
2517 |
|
2518 | |||
2518 | if t == b'x': |
|
2519 | if t == b'x': | |
2519 | try: |
|
2520 | try: | |
2520 | return _zlibdecompress(data) |
|
2521 | return _zlibdecompress(data) | |
2521 | except zlib.error as e: |
|
2522 | except zlib.error as e: | |
2522 | raise error.RevlogError( |
|
2523 | raise error.RevlogError( | |
2523 | _(b'revlog decompress error: %s') |
|
2524 | _(b'revlog decompress error: %s') | |
2524 | % stringutil.forcebytestr(e) |
|
2525 | % stringutil.forcebytestr(e) | |
2525 | ) |
|
2526 | ) | |
2526 | # '\0' is more common than 'u' so it goes first. |
|
2527 | # '\0' is more common than 'u' so it goes first. | |
2527 | elif t == b'\0': |
|
2528 | elif t == b'\0': | |
2528 | return data |
|
2529 | return data | |
2529 | elif t == b'u': |
|
2530 | elif t == b'u': | |
2530 | return util.buffer(data, 1) |
|
2531 | return util.buffer(data, 1) | |
2531 |
|
2532 | |||
2532 | compressor = self._get_decompressor(t) |
|
2533 | compressor = self._get_decompressor(t) | |
2533 |
|
2534 | |||
2534 | return compressor.decompress(data) |
|
2535 | return compressor.decompress(data) | |
2535 |
|
2536 | |||
2536 | def _addrevision( |
|
2537 | def _addrevision( | |
2537 | self, |
|
2538 | self, | |
2538 | node, |
|
2539 | node, | |
2539 | rawtext, |
|
2540 | rawtext, | |
2540 | transaction, |
|
2541 | transaction, | |
2541 | link, |
|
2542 | link, | |
2542 | p1, |
|
2543 | p1, | |
2543 | p2, |
|
2544 | p2, | |
2544 | flags, |
|
2545 | flags, | |
2545 | cachedelta, |
|
2546 | cachedelta, | |
2546 | alwayscache=False, |
|
2547 | alwayscache=False, | |
2547 | deltacomputer=None, |
|
2548 | deltacomputer=None, | |
2548 | sidedata=None, |
|
2549 | sidedata=None, | |
2549 | ): |
|
2550 | ): | |
2550 | """internal function to add revisions to the log |
|
2551 | """internal function to add revisions to the log | |
2551 |
|
2552 | |||
2552 | see addrevision for argument descriptions. |
|
2553 | see addrevision for argument descriptions. | |
2553 |
|
2554 | |||
2554 | note: "addrevision" takes non-raw text, "_addrevision" takes raw text. |
|
2555 | note: "addrevision" takes non-raw text, "_addrevision" takes raw text. | |
2555 |
|
2556 | |||
2556 | if "deltacomputer" is not provided or None, a defaultdeltacomputer will |
|
2557 | if "deltacomputer" is not provided or None, a defaultdeltacomputer will | |
2557 | be used. |
|
2558 | be used. | |
2558 |
|
2559 | |||
2559 | invariants: |
|
2560 | invariants: | |
2560 | - rawtext is optional (can be None); if not set, cachedelta must be set. |
|
2561 | - rawtext is optional (can be None); if not set, cachedelta must be set. | |
2561 | if both are set, they must correspond to each other. |
|
2562 | if both are set, they must correspond to each other. | |
2562 | """ |
|
2563 | """ | |
2563 | if node == self.nullid: |
|
2564 | if node == self.nullid: | |
2564 | raise error.RevlogError( |
|
2565 | raise error.RevlogError( | |
2565 | _(b"%s: attempt to add null revision") % self.display_id |
|
2566 | _(b"%s: attempt to add null revision") % self.display_id | |
2566 | ) |
|
2567 | ) | |
2567 | if ( |
|
2568 | if ( | |
2568 | node == self.nodeconstants.wdirid |
|
2569 | node == self.nodeconstants.wdirid | |
2569 | or node in self.nodeconstants.wdirfilenodeids |
|
2570 | or node in self.nodeconstants.wdirfilenodeids | |
2570 | ): |
|
2571 | ): | |
2571 | raise error.RevlogError( |
|
2572 | raise error.RevlogError( | |
2572 | _(b"%s: attempt to add wdir revision") % self.display_id |
|
2573 | _(b"%s: attempt to add wdir revision") % self.display_id | |
2573 | ) |
|
2574 | ) | |
2574 | if self._writinghandles is None: |
|
2575 | if self._writinghandles is None: | |
2575 | msg = b'adding revision outside `revlog._writing` context' |
|
2576 | msg = b'adding revision outside `revlog._writing` context' | |
2576 | raise error.ProgrammingError(msg) |
|
2577 | raise error.ProgrammingError(msg) | |
2577 |
|
2578 | |||
2578 | if self._inline: |
|
2579 | if self._inline: | |
2579 | fh = self._writinghandles[0] |
|
2580 | fh = self._writinghandles[0] | |
2580 | else: |
|
2581 | else: | |
2581 | fh = self._writinghandles[1] |
|
2582 | fh = self._writinghandles[1] | |
2582 |
|
2583 | |||
2583 | btext = [rawtext] |
|
2584 | btext = [rawtext] | |
2584 |
|
2585 | |||
2585 | curr = len(self) |
|
2586 | curr = len(self) | |
2586 | prev = curr - 1 |
|
2587 | prev = curr - 1 | |
2587 |
|
2588 | |||
2588 | offset = self._get_data_offset(prev) |
|
2589 | offset = self._get_data_offset(prev) | |
2589 |
|
2590 | |||
2590 | if self._concurrencychecker: |
|
2591 | if self._concurrencychecker: | |
2591 | ifh, dfh, sdfh = self._writinghandles |
|
2592 | ifh, dfh, sdfh = self._writinghandles | |
2592 | # XXX no checking for the sidedata file |
|
2593 | # XXX no checking for the sidedata file | |
2593 | if self._inline: |
|
2594 | if self._inline: | |
2594 | # offset is "as if" it were in the .d file, so we need to add on |
|
2595 | # offset is "as if" it were in the .d file, so we need to add on | |
2595 | # the size of the entry metadata. |
|
2596 | # the size of the entry metadata. | |
2596 | self._concurrencychecker( |
|
2597 | self._concurrencychecker( | |
2597 | ifh, self._indexfile, offset + curr * self.index.entry_size |
|
2598 | ifh, self._indexfile, offset + curr * self.index.entry_size | |
2598 | ) |
|
2599 | ) | |
2599 | else: |
|
2600 | else: | |
2600 | # Entries in the .i are a consistent size. |
|
2601 | # Entries in the .i are a consistent size. | |
2601 | self._concurrencychecker( |
|
2602 | self._concurrencychecker( | |
2602 | ifh, self._indexfile, curr * self.index.entry_size |
|
2603 | ifh, self._indexfile, curr * self.index.entry_size | |
2603 | ) |
|
2604 | ) | |
2604 | self._concurrencychecker(dfh, self._datafile, offset) |
|
2605 | self._concurrencychecker(dfh, self._datafile, offset) | |
2605 |
|
2606 | |||
2606 | p1r, p2r = self.rev(p1), self.rev(p2) |
|
2607 | p1r, p2r = self.rev(p1), self.rev(p2) | |
2607 |
|
2608 | |||
2608 | # full versions are inserted when the needed deltas |
|
2609 | # full versions are inserted when the needed deltas | |
2609 | # become comparable to the uncompressed text |
|
2610 | # become comparable to the uncompressed text | |
2610 | if rawtext is None: |
|
2611 | if rawtext is None: | |
2611 | # need rawtext size, before changed by flag processors, which is |
|
2612 | # need rawtext size, before changed by flag processors, which is | |
2612 | # the non-raw size. use revlog explicitly to avoid filelog's extra |
|
2613 | # the non-raw size. use revlog explicitly to avoid filelog's extra | |
2613 | # logic that might remove metadata size. |
|
2614 | # logic that might remove metadata size. | |
2614 | textlen = mdiff.patchedsize( |
|
2615 | textlen = mdiff.patchedsize( | |
2615 | revlog.size(self, cachedelta[0]), cachedelta[1] |
|
2616 | revlog.size(self, cachedelta[0]), cachedelta[1] | |
2616 | ) |
|
2617 | ) | |
2617 | else: |
|
2618 | else: | |
2618 | textlen = len(rawtext) |
|
2619 | textlen = len(rawtext) | |
2619 |
|
2620 | |||
2620 | if deltacomputer is None: |
|
2621 | if deltacomputer is None: | |
2621 | write_debug = None |
|
2622 | write_debug = None | |
2622 | if self._debug_delta: |
|
2623 | if self._debug_delta: | |
2623 | write_debug = transaction._report |
|
2624 | write_debug = transaction._report | |
2624 | deltacomputer = deltautil.deltacomputer( |
|
2625 | deltacomputer = deltautil.deltacomputer( | |
2625 | self, write_debug=write_debug |
|
2626 | self, write_debug=write_debug | |
2626 | ) |
|
2627 | ) | |
2627 |
|
2628 | |||
2628 | if cachedelta is not None and len(cachedelta) == 2: |
|
2629 | if cachedelta is not None and len(cachedelta) == 2: | |
2629 | # If the cached delta has no information about how it should be |
|
2630 | # If the cached delta has no information about how it should be | |
2630 | # reused, add the default reuse instruction according to the |
|
2631 | # reused, add the default reuse instruction according to the | |
2631 | # revlog's configuration. |
|
2632 | # revlog's configuration. | |
2632 | if self._generaldelta and self._lazydeltabase: |
|
2633 | if self._generaldelta and self._lazydeltabase: | |
2633 | delta_base_reuse = DELTA_BASE_REUSE_TRY |
|
2634 | delta_base_reuse = DELTA_BASE_REUSE_TRY | |
2634 | else: |
|
2635 | else: | |
2635 | delta_base_reuse = DELTA_BASE_REUSE_NO |
|
2636 | delta_base_reuse = DELTA_BASE_REUSE_NO | |
2636 | cachedelta = (cachedelta[0], cachedelta[1], delta_base_reuse) |
|
2637 | cachedelta = (cachedelta[0], cachedelta[1], delta_base_reuse) | |
2637 |
|
2638 | |||
2638 | revinfo = revlogutils.revisioninfo( |
|
2639 | revinfo = revlogutils.revisioninfo( | |
2639 | node, |
|
2640 | node, | |
2640 | p1, |
|
2641 | p1, | |
2641 | p2, |
|
2642 | p2, | |
2642 | btext, |
|
2643 | btext, | |
2643 | textlen, |
|
2644 | textlen, | |
2644 | cachedelta, |
|
2645 | cachedelta, | |
2645 | flags, |
|
2646 | flags, | |
2646 | ) |
|
2647 | ) | |
2647 |
|
2648 | |||
2648 | deltainfo = deltacomputer.finddeltainfo(revinfo, fh) |
|
2649 | deltainfo = deltacomputer.finddeltainfo(revinfo, fh) | |
2649 |
|
2650 | |||
2650 | compression_mode = COMP_MODE_INLINE |
|
2651 | compression_mode = COMP_MODE_INLINE | |
2651 | if self._docket is not None: |
|
2652 | if self._docket is not None: | |
2652 | default_comp = self._docket.default_compression_header |
|
2653 | default_comp = self._docket.default_compression_header | |
2653 | r = deltautil.delta_compression(default_comp, deltainfo) |
|
2654 | r = deltautil.delta_compression(default_comp, deltainfo) | |
2654 | compression_mode, deltainfo = r |
|
2655 | compression_mode, deltainfo = r | |
2655 |
|
2656 | |||
2656 | sidedata_compression_mode = COMP_MODE_INLINE |
|
2657 | sidedata_compression_mode = COMP_MODE_INLINE | |
2657 | if sidedata and self.hassidedata: |
|
2658 | if sidedata and self.hassidedata: | |
2658 | sidedata_compression_mode = COMP_MODE_PLAIN |
|
2659 | sidedata_compression_mode = COMP_MODE_PLAIN | |
2659 | serialized_sidedata = sidedatautil.serialize_sidedata(sidedata) |
|
2660 | serialized_sidedata = sidedatautil.serialize_sidedata(sidedata) | |
2660 | sidedata_offset = self._docket.sidedata_end |
|
2661 | sidedata_offset = self._docket.sidedata_end | |
2661 | h, comp_sidedata = self.compress(serialized_sidedata) |
|
2662 | h, comp_sidedata = self.compress(serialized_sidedata) | |
2662 | if ( |
|
2663 | if ( | |
2663 | h != b'u' |
|
2664 | h != b'u' | |
2664 | and comp_sidedata[0:1] != b'\0' |
|
2665 | and comp_sidedata[0:1] != b'\0' | |
2665 | and len(comp_sidedata) < len(serialized_sidedata) |
|
2666 | and len(comp_sidedata) < len(serialized_sidedata) | |
2666 | ): |
|
2667 | ): | |
2667 | assert not h |
|
2668 | assert not h | |
2668 | if ( |
|
2669 | if ( | |
2669 | comp_sidedata[0:1] |
|
2670 | comp_sidedata[0:1] | |
2670 | == self._docket.default_compression_header |
|
2671 | == self._docket.default_compression_header | |
2671 | ): |
|
2672 | ): | |
2672 | sidedata_compression_mode = COMP_MODE_DEFAULT |
|
2673 | sidedata_compression_mode = COMP_MODE_DEFAULT | |
2673 | serialized_sidedata = comp_sidedata |
|
2674 | serialized_sidedata = comp_sidedata | |
2674 | else: |
|
2675 | else: | |
2675 | sidedata_compression_mode = COMP_MODE_INLINE |
|
2676 | sidedata_compression_mode = COMP_MODE_INLINE | |
2676 | serialized_sidedata = comp_sidedata |
|
2677 | serialized_sidedata = comp_sidedata | |
2677 | else: |
|
2678 | else: | |
2678 | serialized_sidedata = b"" |
|
2679 | serialized_sidedata = b"" | |
2679 | # Don't store the offset if the sidedata is empty, that way |
|
2680 | # Don't store the offset if the sidedata is empty, that way | |
2680 | # we can easily detect empty sidedata and they will be no different |
|
2681 | # we can easily detect empty sidedata and they will be no different | |
2681 | # than ones we manually add. |
|
2682 | # than ones we manually add. | |
2682 | sidedata_offset = 0 |
|
2683 | sidedata_offset = 0 | |
2683 |
|
2684 | |||
2684 | rank = RANK_UNKNOWN |
|
2685 | rank = RANK_UNKNOWN | |
2685 | if self._compute_rank: |
|
2686 | if self._compute_rank: | |
2686 | if (p1r, p2r) == (nullrev, nullrev): |
|
2687 | if (p1r, p2r) == (nullrev, nullrev): | |
2687 | rank = 1 |
|
2688 | rank = 1 | |
2688 | elif p1r != nullrev and p2r == nullrev: |
|
2689 | elif p1r != nullrev and p2r == nullrev: | |
2689 | rank = 1 + self.fast_rank(p1r) |
|
2690 | rank = 1 + self.fast_rank(p1r) | |
2690 | elif p1r == nullrev and p2r != nullrev: |
|
2691 | elif p1r == nullrev and p2r != nullrev: | |
2691 | rank = 1 + self.fast_rank(p2r) |
|
2692 | rank = 1 + self.fast_rank(p2r) | |
2692 | else: # merge node |
|
2693 | else: # merge node | |
2693 | if rustdagop is not None and self.index.rust_ext_compat: |
|
2694 | if rustdagop is not None and self.index.rust_ext_compat: | |
2694 | rank = rustdagop.rank(self.index, p1r, p2r) |
|
2695 | rank = rustdagop.rank(self.index, p1r, p2r) | |
2695 | else: |
|
2696 | else: | |
2696 | pmin, pmax = sorted((p1r, p2r)) |
|
2697 | pmin, pmax = sorted((p1r, p2r)) | |
2697 | rank = 1 + self.fast_rank(pmax) |
|
2698 | rank = 1 + self.fast_rank(pmax) | |
2698 | rank += sum(1 for _ in self.findmissingrevs([pmax], [pmin])) |
|
2699 | rank += sum(1 for _ in self.findmissingrevs([pmax], [pmin])) | |
2699 |
|
2700 | |||
2700 | e = revlogutils.entry( |
|
2701 | e = revlogutils.entry( | |
2701 | flags=flags, |
|
2702 | flags=flags, | |
2702 | data_offset=offset, |
|
2703 | data_offset=offset, | |
2703 | data_compressed_length=deltainfo.deltalen, |
|
2704 | data_compressed_length=deltainfo.deltalen, | |
2704 | data_uncompressed_length=textlen, |
|
2705 | data_uncompressed_length=textlen, | |
2705 | data_compression_mode=compression_mode, |
|
2706 | data_compression_mode=compression_mode, | |
2706 | data_delta_base=deltainfo.base, |
|
2707 | data_delta_base=deltainfo.base, | |
2707 | link_rev=link, |
|
2708 | link_rev=link, | |
2708 | parent_rev_1=p1r, |
|
2709 | parent_rev_1=p1r, | |
2709 | parent_rev_2=p2r, |
|
2710 | parent_rev_2=p2r, | |
2710 | node_id=node, |
|
2711 | node_id=node, | |
2711 | sidedata_offset=sidedata_offset, |
|
2712 | sidedata_offset=sidedata_offset, | |
2712 | sidedata_compressed_length=len(serialized_sidedata), |
|
2713 | sidedata_compressed_length=len(serialized_sidedata), | |
2713 | sidedata_compression_mode=sidedata_compression_mode, |
|
2714 | sidedata_compression_mode=sidedata_compression_mode, | |
2714 | rank=rank, |
|
2715 | rank=rank, | |
2715 | ) |
|
2716 | ) | |
2716 |
|
2717 | |||
2717 | self.index.append(e) |
|
2718 | self.index.append(e) | |
2718 | entry = self.index.entry_binary(curr) |
|
2719 | entry = self.index.entry_binary(curr) | |
2719 | if curr == 0 and self._docket is None: |
|
2720 | if curr == 0 and self._docket is None: | |
2720 | header = self._format_flags | self._format_version |
|
2721 | header = self._format_flags | self._format_version | |
2721 | header = self.index.pack_header(header) |
|
2722 | header = self.index.pack_header(header) | |
2722 | entry = header + entry |
|
2723 | entry = header + entry | |
2723 | self._writeentry( |
|
2724 | self._writeentry( | |
2724 | transaction, |
|
2725 | transaction, | |
2725 | entry, |
|
2726 | entry, | |
2726 | deltainfo.data, |
|
2727 | deltainfo.data, | |
2727 | link, |
|
2728 | link, | |
2728 | offset, |
|
2729 | offset, | |
2729 | serialized_sidedata, |
|
2730 | serialized_sidedata, | |
2730 | sidedata_offset, |
|
2731 | sidedata_offset, | |
2731 | ) |
|
2732 | ) | |
2732 |
|
2733 | |||
2733 | rawtext = btext[0] |
|
2734 | rawtext = btext[0] | |
2734 |
|
2735 | |||
2735 | if alwayscache and rawtext is None: |
|
2736 | if alwayscache and rawtext is None: | |
2736 | rawtext = deltacomputer.buildtext(revinfo, fh) |
|
2737 | rawtext = deltacomputer.buildtext(revinfo, fh) | |
2737 |
|
2738 | |||
2738 | if type(rawtext) == bytes: # only accept immutable objects |
|
2739 | if type(rawtext) == bytes: # only accept immutable objects | |
2739 | self._revisioncache = (node, curr, rawtext) |
|
2740 | self._revisioncache = (node, curr, rawtext) | |
2740 | self._chainbasecache[curr] = deltainfo.chainbase |
|
2741 | self._chainbasecache[curr] = deltainfo.chainbase | |
2741 | return curr |
|
2742 | return curr | |
2742 |
|
2743 | |||
2743 | def _get_data_offset(self, prev): |
|
2744 | def _get_data_offset(self, prev): | |
2744 | """Returns the current offset in the (in-transaction) data file. |
|
2745 | """Returns the current offset in the (in-transaction) data file. | |
2745 | Versions < 2 of the revlog can get this 0(1), revlog v2 needs a docket |
|
2746 | Versions < 2 of the revlog can get this 0(1), revlog v2 needs a docket | |
2746 | file to store that information: since sidedata can be rewritten to the |
|
2747 | file to store that information: since sidedata can be rewritten to the | |
2747 | end of the data file within a transaction, you can have cases where, for |
|
2748 | end of the data file within a transaction, you can have cases where, for | |
2748 | example, rev `n` does not have sidedata while rev `n - 1` does, leading |
|
2749 | example, rev `n` does not have sidedata while rev `n - 1` does, leading | |
2749 | to `n - 1`'s sidedata being written after `n`'s data. |
|
2750 | to `n - 1`'s sidedata being written after `n`'s data. | |
2750 |
|
2751 | |||
2751 | TODO cache this in a docket file before getting out of experimental.""" |
|
2752 | TODO cache this in a docket file before getting out of experimental.""" | |
2752 | if self._docket is None: |
|
2753 | if self._docket is None: | |
2753 | return self.end(prev) |
|
2754 | return self.end(prev) | |
2754 | else: |
|
2755 | else: | |
2755 | return self._docket.data_end |
|
2756 | return self._docket.data_end | |
2756 |
|
2757 | |||
2757 | def _writeentry( |
|
2758 | def _writeentry( | |
2758 | self, transaction, entry, data, link, offset, sidedata, sidedata_offset |
|
2759 | self, transaction, entry, data, link, offset, sidedata, sidedata_offset | |
2759 | ): |
|
2760 | ): | |
2760 | # Files opened in a+ mode have inconsistent behavior on various |
|
2761 | # Files opened in a+ mode have inconsistent behavior on various | |
2761 | # platforms. Windows requires that a file positioning call be made |
|
2762 | # platforms. Windows requires that a file positioning call be made | |
2762 | # when the file handle transitions between reads and writes. See |
|
2763 | # when the file handle transitions between reads and writes. See | |
2763 | # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other |
|
2764 | # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other | |
2764 | # platforms, Python or the platform itself can be buggy. Some versions |
|
2765 | # platforms, Python or the platform itself can be buggy. Some versions | |
2765 | # of Solaris have been observed to not append at the end of the file |
|
2766 | # of Solaris have been observed to not append at the end of the file | |
2766 | # if the file was seeked to before the end. See issue4943 for more. |
|
2767 | # if the file was seeked to before the end. See issue4943 for more. | |
2767 | # |
|
2768 | # | |
2768 | # We work around this issue by inserting a seek() before writing. |
|
2769 | # We work around this issue by inserting a seek() before writing. | |
2769 | # Note: This is likely not necessary on Python 3. However, because |
|
2770 | # Note: This is likely not necessary on Python 3. However, because | |
2770 | # the file handle is reused for reads and may be seeked there, we need |
|
2771 | # the file handle is reused for reads and may be seeked there, we need | |
2771 | # to be careful before changing this. |
|
2772 | # to be careful before changing this. | |
2772 | if self._writinghandles is None: |
|
2773 | if self._writinghandles is None: | |
2773 | msg = b'adding revision outside `revlog._writing` context' |
|
2774 | msg = b'adding revision outside `revlog._writing` context' | |
2774 | raise error.ProgrammingError(msg) |
|
2775 | raise error.ProgrammingError(msg) | |
2775 | ifh, dfh, sdfh = self._writinghandles |
|
2776 | ifh, dfh, sdfh = self._writinghandles | |
2776 | if self._docket is None: |
|
2777 | if self._docket is None: | |
2777 | ifh.seek(0, os.SEEK_END) |
|
2778 | ifh.seek(0, os.SEEK_END) | |
2778 | else: |
|
2779 | else: | |
2779 | ifh.seek(self._docket.index_end, os.SEEK_SET) |
|
2780 | ifh.seek(self._docket.index_end, os.SEEK_SET) | |
2780 | if dfh: |
|
2781 | if dfh: | |
2781 | if self._docket is None: |
|
2782 | if self._docket is None: | |
2782 | dfh.seek(0, os.SEEK_END) |
|
2783 | dfh.seek(0, os.SEEK_END) | |
2783 | else: |
|
2784 | else: | |
2784 | dfh.seek(self._docket.data_end, os.SEEK_SET) |
|
2785 | dfh.seek(self._docket.data_end, os.SEEK_SET) | |
2785 | if sdfh: |
|
2786 | if sdfh: | |
2786 | sdfh.seek(self._docket.sidedata_end, os.SEEK_SET) |
|
2787 | sdfh.seek(self._docket.sidedata_end, os.SEEK_SET) | |
2787 |
|
2788 | |||
2788 | curr = len(self) - 1 |
|
2789 | curr = len(self) - 1 | |
2789 | if not self._inline: |
|
2790 | if not self._inline: | |
2790 | transaction.add(self._datafile, offset) |
|
2791 | transaction.add(self._datafile, offset) | |
2791 | if self._sidedatafile: |
|
2792 | if self._sidedatafile: | |
2792 | transaction.add(self._sidedatafile, sidedata_offset) |
|
2793 | transaction.add(self._sidedatafile, sidedata_offset) | |
2793 | transaction.add(self._indexfile, curr * len(entry)) |
|
2794 | transaction.add(self._indexfile, curr * len(entry)) | |
2794 | if data[0]: |
|
2795 | if data[0]: | |
2795 | dfh.write(data[0]) |
|
2796 | dfh.write(data[0]) | |
2796 | dfh.write(data[1]) |
|
2797 | dfh.write(data[1]) | |
2797 | if sidedata: |
|
2798 | if sidedata: | |
2798 | sdfh.write(sidedata) |
|
2799 | sdfh.write(sidedata) | |
2799 | ifh.write(entry) |
|
2800 | ifh.write(entry) | |
2800 | else: |
|
2801 | else: | |
2801 | offset += curr * self.index.entry_size |
|
2802 | offset += curr * self.index.entry_size | |
2802 | transaction.add(self._indexfile, offset) |
|
2803 | transaction.add(self._indexfile, offset) | |
2803 | ifh.write(entry) |
|
2804 | ifh.write(entry) | |
2804 | ifh.write(data[0]) |
|
2805 | ifh.write(data[0]) | |
2805 | ifh.write(data[1]) |
|
2806 | ifh.write(data[1]) | |
2806 | assert not sidedata |
|
2807 | assert not sidedata | |
2807 | self._enforceinlinesize(transaction) |
|
2808 | self._enforceinlinesize(transaction) | |
2808 | if self._docket is not None: |
|
2809 | if self._docket is not None: | |
2809 | # revlog-v2 always has 3 writing handles, help Pytype |
|
2810 | # revlog-v2 always has 3 writing handles, help Pytype | |
2810 | wh1 = self._writinghandles[0] |
|
2811 | wh1 = self._writinghandles[0] | |
2811 | wh2 = self._writinghandles[1] |
|
2812 | wh2 = self._writinghandles[1] | |
2812 | wh3 = self._writinghandles[2] |
|
2813 | wh3 = self._writinghandles[2] | |
2813 | assert wh1 is not None |
|
2814 | assert wh1 is not None | |
2814 | assert wh2 is not None |
|
2815 | assert wh2 is not None | |
2815 | assert wh3 is not None |
|
2816 | assert wh3 is not None | |
2816 | self._docket.index_end = wh1.tell() |
|
2817 | self._docket.index_end = wh1.tell() | |
2817 | self._docket.data_end = wh2.tell() |
|
2818 | self._docket.data_end = wh2.tell() | |
2818 | self._docket.sidedata_end = wh3.tell() |
|
2819 | self._docket.sidedata_end = wh3.tell() | |
2819 |
|
2820 | |||
2820 | nodemaputil.setup_persistent_nodemap(transaction, self) |
|
2821 | nodemaputil.setup_persistent_nodemap(transaction, self) | |
2821 |
|
2822 | |||
2822 | def addgroup( |
|
2823 | def addgroup( | |
2823 | self, |
|
2824 | self, | |
2824 | deltas, |
|
2825 | deltas, | |
2825 | linkmapper, |
|
2826 | linkmapper, | |
2826 | transaction, |
|
2827 | transaction, | |
2827 | alwayscache=False, |
|
2828 | alwayscache=False, | |
2828 | addrevisioncb=None, |
|
2829 | addrevisioncb=None, | |
2829 | duplicaterevisioncb=None, |
|
2830 | duplicaterevisioncb=None, | |
2830 | debug_info=None, |
|
2831 | debug_info=None, | |
2831 | delta_base_reuse_policy=None, |
|
2832 | delta_base_reuse_policy=None, | |
2832 | ): |
|
2833 | ): | |
2833 | """ |
|
2834 | """ | |
2834 | add a delta group |
|
2835 | add a delta group | |
2835 |
|
2836 | |||
2836 | given a set of deltas, add them to the revision log. the |
|
2837 | given a set of deltas, add them to the revision log. the | |
2837 | first delta is against its parent, which should be in our |
|
2838 | first delta is against its parent, which should be in our | |
2838 | log, the rest are against the previous delta. |
|
2839 | log, the rest are against the previous delta. | |
2839 |
|
2840 | |||
2840 | If ``addrevisioncb`` is defined, it will be called with arguments of |
|
2841 | If ``addrevisioncb`` is defined, it will be called with arguments of | |
2841 | this revlog and the node that was added. |
|
2842 | this revlog and the node that was added. | |
2842 | """ |
|
2843 | """ | |
2843 |
|
2844 | |||
2844 | if self._adding_group: |
|
2845 | if self._adding_group: | |
2845 | raise error.ProgrammingError(b'cannot nest addgroup() calls') |
|
2846 | raise error.ProgrammingError(b'cannot nest addgroup() calls') | |
2846 |
|
2847 | |||
2847 | # read the default delta-base reuse policy from revlog config if the |
|
2848 | # read the default delta-base reuse policy from revlog config if the | |
2848 | # group did not specify one. |
|
2849 | # group did not specify one. | |
2849 | if delta_base_reuse_policy is None: |
|
2850 | if delta_base_reuse_policy is None: | |
2850 | if self._generaldelta and self._lazydeltabase: |
|
2851 | if self._generaldelta and self._lazydeltabase: | |
2851 | delta_base_reuse_policy = DELTA_BASE_REUSE_TRY |
|
2852 | delta_base_reuse_policy = DELTA_BASE_REUSE_TRY | |
2852 | else: |
|
2853 | else: | |
2853 | delta_base_reuse_policy = DELTA_BASE_REUSE_NO |
|
2854 | delta_base_reuse_policy = DELTA_BASE_REUSE_NO | |
2854 |
|
2855 | |||
2855 | self._adding_group = True |
|
2856 | self._adding_group = True | |
2856 | empty = True |
|
2857 | empty = True | |
2857 | try: |
|
2858 | try: | |
2858 | with self._writing(transaction): |
|
2859 | with self._writing(transaction): | |
2859 | write_debug = None |
|
2860 | write_debug = None | |
2860 | if self._debug_delta: |
|
2861 | if self._debug_delta: | |
2861 | write_debug = transaction._report |
|
2862 | write_debug = transaction._report | |
2862 | deltacomputer = deltautil.deltacomputer( |
|
2863 | deltacomputer = deltautil.deltacomputer( | |
2863 | self, |
|
2864 | self, | |
2864 | write_debug=write_debug, |
|
2865 | write_debug=write_debug, | |
2865 | debug_info=debug_info, |
|
2866 | debug_info=debug_info, | |
2866 | ) |
|
2867 | ) | |
2867 | # loop through our set of deltas |
|
2868 | # loop through our set of deltas | |
2868 | for data in deltas: |
|
2869 | for data in deltas: | |
2869 | ( |
|
2870 | ( | |
2870 | node, |
|
2871 | node, | |
2871 | p1, |
|
2872 | p1, | |
2872 | p2, |
|
2873 | p2, | |
2873 | linknode, |
|
2874 | linknode, | |
2874 | deltabase, |
|
2875 | deltabase, | |
2875 | delta, |
|
2876 | delta, | |
2876 | flags, |
|
2877 | flags, | |
2877 | sidedata, |
|
2878 | sidedata, | |
2878 | ) = data |
|
2879 | ) = data | |
2879 | link = linkmapper(linknode) |
|
2880 | link = linkmapper(linknode) | |
2880 | flags = flags or REVIDX_DEFAULT_FLAGS |
|
2881 | flags = flags or REVIDX_DEFAULT_FLAGS | |
2881 |
|
2882 | |||
2882 | rev = self.index.get_rev(node) |
|
2883 | rev = self.index.get_rev(node) | |
2883 | if rev is not None: |
|
2884 | if rev is not None: | |
2884 | # this can happen if two branches make the same change |
|
2885 | # this can happen if two branches make the same change | |
2885 | self._nodeduplicatecallback(transaction, rev) |
|
2886 | self._nodeduplicatecallback(transaction, rev) | |
2886 | if duplicaterevisioncb: |
|
2887 | if duplicaterevisioncb: | |
2887 | duplicaterevisioncb(self, rev) |
|
2888 | duplicaterevisioncb(self, rev) | |
2888 | empty = False |
|
2889 | empty = False | |
2889 | continue |
|
2890 | continue | |
2890 |
|
2891 | |||
2891 | for p in (p1, p2): |
|
2892 | for p in (p1, p2): | |
2892 | if not self.index.has_node(p): |
|
2893 | if not self.index.has_node(p): | |
2893 | raise error.LookupError( |
|
2894 | raise error.LookupError( | |
2894 | p, self.radix, _(b'unknown parent') |
|
2895 | p, self.radix, _(b'unknown parent') | |
2895 | ) |
|
2896 | ) | |
2896 |
|
2897 | |||
2897 | if not self.index.has_node(deltabase): |
|
2898 | if not self.index.has_node(deltabase): | |
2898 | raise error.LookupError( |
|
2899 | raise error.LookupError( | |
2899 | deltabase, self.display_id, _(b'unknown delta base') |
|
2900 | deltabase, self.display_id, _(b'unknown delta base') | |
2900 | ) |
|
2901 | ) | |
2901 |
|
2902 | |||
2902 | baserev = self.rev(deltabase) |
|
2903 | baserev = self.rev(deltabase) | |
2903 |
|
2904 | |||
2904 | if baserev != nullrev and self.iscensored(baserev): |
|
2905 | if baserev != nullrev and self.iscensored(baserev): | |
2905 | # if base is censored, delta must be full replacement in a |
|
2906 | # if base is censored, delta must be full replacement in a | |
2906 | # single patch operation |
|
2907 | # single patch operation | |
2907 | hlen = struct.calcsize(b">lll") |
|
2908 | hlen = struct.calcsize(b">lll") | |
2908 | oldlen = self.rawsize(baserev) |
|
2909 | oldlen = self.rawsize(baserev) | |
2909 | newlen = len(delta) - hlen |
|
2910 | newlen = len(delta) - hlen | |
2910 | if delta[:hlen] != mdiff.replacediffheader( |
|
2911 | if delta[:hlen] != mdiff.replacediffheader( | |
2911 | oldlen, newlen |
|
2912 | oldlen, newlen | |
2912 | ): |
|
2913 | ): | |
2913 | raise error.CensoredBaseError( |
|
2914 | raise error.CensoredBaseError( | |
2914 | self.display_id, self.node(baserev) |
|
2915 | self.display_id, self.node(baserev) | |
2915 | ) |
|
2916 | ) | |
2916 |
|
2917 | |||
2917 | if not flags and self._peek_iscensored(baserev, delta): |
|
2918 | if not flags and self._peek_iscensored(baserev, delta): | |
2918 | flags |= REVIDX_ISCENSORED |
|
2919 | flags |= REVIDX_ISCENSORED | |
2919 |
|
2920 | |||
2920 | # We assume consumers of addrevisioncb will want to retrieve |
|
2921 | # We assume consumers of addrevisioncb will want to retrieve | |
2921 | # the added revision, which will require a call to |
|
2922 | # the added revision, which will require a call to | |
2922 | # revision(). revision() will fast path if there is a cache |
|
2923 | # revision(). revision() will fast path if there is a cache | |
2923 | # hit. So, we tell _addrevision() to always cache in this case. |
|
2924 | # hit. So, we tell _addrevision() to always cache in this case. | |
2924 | # We're only using addgroup() in the context of changegroup |
|
2925 | # We're only using addgroup() in the context of changegroup | |
2925 | # generation so the revision data can always be handled as raw |
|
2926 | # generation so the revision data can always be handled as raw | |
2926 | # by the flagprocessor. |
|
2927 | # by the flagprocessor. | |
2927 | rev = self._addrevision( |
|
2928 | rev = self._addrevision( | |
2928 | node, |
|
2929 | node, | |
2929 | None, |
|
2930 | None, | |
2930 | transaction, |
|
2931 | transaction, | |
2931 | link, |
|
2932 | link, | |
2932 | p1, |
|
2933 | p1, | |
2933 | p2, |
|
2934 | p2, | |
2934 | flags, |
|
2935 | flags, | |
2935 | (baserev, delta, delta_base_reuse_policy), |
|
2936 | (baserev, delta, delta_base_reuse_policy), | |
2936 | alwayscache=alwayscache, |
|
2937 | alwayscache=alwayscache, | |
2937 | deltacomputer=deltacomputer, |
|
2938 | deltacomputer=deltacomputer, | |
2938 | sidedata=sidedata, |
|
2939 | sidedata=sidedata, | |
2939 | ) |
|
2940 | ) | |
2940 |
|
2941 | |||
2941 | if addrevisioncb: |
|
2942 | if addrevisioncb: | |
2942 | addrevisioncb(self, rev) |
|
2943 | addrevisioncb(self, rev) | |
2943 | empty = False |
|
2944 | empty = False | |
2944 | finally: |
|
2945 | finally: | |
2945 | self._adding_group = False |
|
2946 | self._adding_group = False | |
2946 | return not empty |
|
2947 | return not empty | |
2947 |
|
2948 | |||
2948 | def iscensored(self, rev): |
|
2949 | def iscensored(self, rev): | |
2949 | """Check if a file revision is censored.""" |
|
2950 | """Check if a file revision is censored.""" | |
2950 | if not self._censorable: |
|
2951 | if not self._censorable: | |
2951 | return False |
|
2952 | return False | |
2952 |
|
2953 | |||
2953 | return self.flags(rev) & REVIDX_ISCENSORED |
|
2954 | return self.flags(rev) & REVIDX_ISCENSORED | |
2954 |
|
2955 | |||
2955 | def _peek_iscensored(self, baserev, delta): |
|
2956 | def _peek_iscensored(self, baserev, delta): | |
2956 | """Quickly check if a delta produces a censored revision.""" |
|
2957 | """Quickly check if a delta produces a censored revision.""" | |
2957 | if not self._censorable: |
|
2958 | if not self._censorable: | |
2958 | return False |
|
2959 | return False | |
2959 |
|
2960 | |||
2960 | return storageutil.deltaiscensored(delta, baserev, self.rawsize) |
|
2961 | return storageutil.deltaiscensored(delta, baserev, self.rawsize) | |
2961 |
|
2962 | |||
2962 | def getstrippoint(self, minlink): |
|
2963 | def getstrippoint(self, minlink): | |
2963 | """find the minimum rev that must be stripped to strip the linkrev |
|
2964 | """find the minimum rev that must be stripped to strip the linkrev | |
2964 |
|
2965 | |||
2965 | Returns a tuple containing the minimum rev and a set of all revs that |
|
2966 | Returns a tuple containing the minimum rev and a set of all revs that | |
2966 | have linkrevs that will be broken by this strip. |
|
2967 | have linkrevs that will be broken by this strip. | |
2967 | """ |
|
2968 | """ | |
2968 | return storageutil.resolvestripinfo( |
|
2969 | return storageutil.resolvestripinfo( | |
2969 | minlink, |
|
2970 | minlink, | |
2970 | len(self) - 1, |
|
2971 | len(self) - 1, | |
2971 | self.headrevs(), |
|
2972 | self.headrevs(), | |
2972 | self.linkrev, |
|
2973 | self.linkrev, | |
2973 | self.parentrevs, |
|
2974 | self.parentrevs, | |
2974 | ) |
|
2975 | ) | |
2975 |
|
2976 | |||
2976 | def strip(self, minlink, transaction): |
|
2977 | def strip(self, minlink, transaction): | |
2977 | """truncate the revlog on the first revision with a linkrev >= minlink |
|
2978 | """truncate the revlog on the first revision with a linkrev >= minlink | |
2978 |
|
2979 | |||
2979 | This function is called when we're stripping revision minlink and |
|
2980 | This function is called when we're stripping revision minlink and | |
2980 | its descendants from the repository. |
|
2981 | its descendants from the repository. | |
2981 |
|
2982 | |||
2982 | We have to remove all revisions with linkrev >= minlink, because |
|
2983 | We have to remove all revisions with linkrev >= minlink, because | |
2983 | the equivalent changelog revisions will be renumbered after the |
|
2984 | the equivalent changelog revisions will be renumbered after the | |
2984 | strip. |
|
2985 | strip. | |
2985 |
|
2986 | |||
2986 | So we truncate the revlog on the first of these revisions, and |
|
2987 | So we truncate the revlog on the first of these revisions, and | |
2987 | trust that the caller has saved the revisions that shouldn't be |
|
2988 | trust that the caller has saved the revisions that shouldn't be | |
2988 | removed and that it'll re-add them after this truncation. |
|
2989 | removed and that it'll re-add them after this truncation. | |
2989 | """ |
|
2990 | """ | |
2990 | if len(self) == 0: |
|
2991 | if len(self) == 0: | |
2991 | return |
|
2992 | return | |
2992 |
|
2993 | |||
2993 | rev, _ = self.getstrippoint(minlink) |
|
2994 | rev, _ = self.getstrippoint(minlink) | |
2994 | if rev == len(self): |
|
2995 | if rev == len(self): | |
2995 | return |
|
2996 | return | |
2996 |
|
2997 | |||
2997 | # first truncate the files on disk |
|
2998 | # first truncate the files on disk | |
2998 | data_end = self.start(rev) |
|
2999 | data_end = self.start(rev) | |
2999 | if not self._inline: |
|
3000 | if not self._inline: | |
3000 | transaction.add(self._datafile, data_end) |
|
3001 | transaction.add(self._datafile, data_end) | |
3001 | end = rev * self.index.entry_size |
|
3002 | end = rev * self.index.entry_size | |
3002 | else: |
|
3003 | else: | |
3003 | end = data_end + (rev * self.index.entry_size) |
|
3004 | end = data_end + (rev * self.index.entry_size) | |
3004 |
|
3005 | |||
3005 | if self._sidedatafile: |
|
3006 | if self._sidedatafile: | |
3006 | sidedata_end = self.sidedata_cut_off(rev) |
|
3007 | sidedata_end = self.sidedata_cut_off(rev) | |
3007 | transaction.add(self._sidedatafile, sidedata_end) |
|
3008 | transaction.add(self._sidedatafile, sidedata_end) | |
3008 |
|
3009 | |||
3009 | transaction.add(self._indexfile, end) |
|
3010 | transaction.add(self._indexfile, end) | |
3010 | if self._docket is not None: |
|
3011 | if self._docket is not None: | |
3011 | # XXX we could, leverage the docket while stripping. However it is |
|
3012 | # XXX we could, leverage the docket while stripping. However it is | |
3012 | # not powerfull enough at the time of this comment |
|
3013 | # not powerfull enough at the time of this comment | |
3013 | self._docket.index_end = end |
|
3014 | self._docket.index_end = end | |
3014 | self._docket.data_end = data_end |
|
3015 | self._docket.data_end = data_end | |
3015 | self._docket.sidedata_end = sidedata_end |
|
3016 | self._docket.sidedata_end = sidedata_end | |
3016 | self._docket.write(transaction, stripping=True) |
|
3017 | self._docket.write(transaction, stripping=True) | |
3017 |
|
3018 | |||
3018 | # then reset internal state in memory to forget those revisions |
|
3019 | # then reset internal state in memory to forget those revisions | |
3019 | self._revisioncache = None |
|
3020 | self._revisioncache = None | |
3020 | self._chaininfocache = util.lrucachedict(500) |
|
3021 | self._chaininfocache = util.lrucachedict(500) | |
3021 | self._segmentfile.clear_cache() |
|
3022 | self._segmentfile.clear_cache() | |
3022 | self._segmentfile_sidedata.clear_cache() |
|
3023 | self._segmentfile_sidedata.clear_cache() | |
3023 |
|
3024 | |||
3024 | del self.index[rev:-1] |
|
3025 | del self.index[rev:-1] | |
3025 |
|
3026 | |||
3026 | def checksize(self): |
|
3027 | def checksize(self): | |
3027 | """Check size of index and data files |
|
3028 | """Check size of index and data files | |
3028 |
|
3029 | |||
3029 | return a (dd, di) tuple. |
|
3030 | return a (dd, di) tuple. | |
3030 | - dd: extra bytes for the "data" file |
|
3031 | - dd: extra bytes for the "data" file | |
3031 | - di: extra bytes for the "index" file |
|
3032 | - di: extra bytes for the "index" file | |
3032 |
|
3033 | |||
3033 | A healthy revlog will return (0, 0). |
|
3034 | A healthy revlog will return (0, 0). | |
3034 | """ |
|
3035 | """ | |
3035 | expected = 0 |
|
3036 | expected = 0 | |
3036 | if len(self): |
|
3037 | if len(self): | |
3037 | expected = max(0, self.end(len(self) - 1)) |
|
3038 | expected = max(0, self.end(len(self) - 1)) | |
3038 |
|
3039 | |||
3039 | try: |
|
3040 | try: | |
3040 | with self._datafp() as f: |
|
3041 | with self._datafp() as f: | |
3041 | f.seek(0, io.SEEK_END) |
|
3042 | f.seek(0, io.SEEK_END) | |
3042 | actual = f.tell() |
|
3043 | actual = f.tell() | |
3043 | dd = actual - expected |
|
3044 | dd = actual - expected | |
3044 | except FileNotFoundError: |
|
3045 | except FileNotFoundError: | |
3045 | dd = 0 |
|
3046 | dd = 0 | |
3046 |
|
3047 | |||
3047 | try: |
|
3048 | try: | |
3048 | f = self.opener(self._indexfile) |
|
3049 | f = self.opener(self._indexfile) | |
3049 | f.seek(0, io.SEEK_END) |
|
3050 | f.seek(0, io.SEEK_END) | |
3050 | actual = f.tell() |
|
3051 | actual = f.tell() | |
3051 | f.close() |
|
3052 | f.close() | |
3052 | s = self.index.entry_size |
|
3053 | s = self.index.entry_size | |
3053 | i = max(0, actual // s) |
|
3054 | i = max(0, actual // s) | |
3054 | di = actual - (i * s) |
|
3055 | di = actual - (i * s) | |
3055 | if self._inline: |
|
3056 | if self._inline: | |
3056 | databytes = 0 |
|
3057 | databytes = 0 | |
3057 | for r in self: |
|
3058 | for r in self: | |
3058 | databytes += max(0, self.length(r)) |
|
3059 | databytes += max(0, self.length(r)) | |
3059 | dd = 0 |
|
3060 | dd = 0 | |
3060 | di = actual - len(self) * s - databytes |
|
3061 | di = actual - len(self) * s - databytes | |
3061 | except FileNotFoundError: |
|
3062 | except FileNotFoundError: | |
3062 | di = 0 |
|
3063 | di = 0 | |
3063 |
|
3064 | |||
3064 | return (dd, di) |
|
3065 | return (dd, di) | |
3065 |
|
3066 | |||
3066 | def files(self): |
|
3067 | def files(self): | |
3067 | res = [self._indexfile] |
|
3068 | res = [self._indexfile] | |
3068 | if self._docket_file is None: |
|
3069 | if self._docket_file is None: | |
3069 | if not self._inline: |
|
3070 | if not self._inline: | |
3070 | res.append(self._datafile) |
|
3071 | res.append(self._datafile) | |
3071 | else: |
|
3072 | else: | |
3072 | res.append(self._docket_file) |
|
3073 | res.append(self._docket_file) | |
3073 | res.extend(self._docket.old_index_filepaths(include_empty=False)) |
|
3074 | res.extend(self._docket.old_index_filepaths(include_empty=False)) | |
3074 | if self._docket.data_end: |
|
3075 | if self._docket.data_end: | |
3075 | res.append(self._datafile) |
|
3076 | res.append(self._datafile) | |
3076 | res.extend(self._docket.old_data_filepaths(include_empty=False)) |
|
3077 | res.extend(self._docket.old_data_filepaths(include_empty=False)) | |
3077 | if self._docket.sidedata_end: |
|
3078 | if self._docket.sidedata_end: | |
3078 | res.append(self._sidedatafile) |
|
3079 | res.append(self._sidedatafile) | |
3079 | res.extend(self._docket.old_sidedata_filepaths(include_empty=False)) |
|
3080 | res.extend(self._docket.old_sidedata_filepaths(include_empty=False)) | |
3080 | return res |
|
3081 | return res | |
3081 |
|
3082 | |||
3082 | def emitrevisions( |
|
3083 | def emitrevisions( | |
3083 | self, |
|
3084 | self, | |
3084 | nodes, |
|
3085 | nodes, | |
3085 | nodesorder=None, |
|
3086 | nodesorder=None, | |
3086 | revisiondata=False, |
|
3087 | revisiondata=False, | |
3087 | assumehaveparentrevisions=False, |
|
3088 | assumehaveparentrevisions=False, | |
3088 | deltamode=repository.CG_DELTAMODE_STD, |
|
3089 | deltamode=repository.CG_DELTAMODE_STD, | |
3089 | sidedata_helpers=None, |
|
3090 | sidedata_helpers=None, | |
3090 | debug_info=None, |
|
3091 | debug_info=None, | |
3091 | ): |
|
3092 | ): | |
3092 | if nodesorder not in (b'nodes', b'storage', b'linear', None): |
|
3093 | if nodesorder not in (b'nodes', b'storage', b'linear', None): | |
3093 | raise error.ProgrammingError( |
|
3094 | raise error.ProgrammingError( | |
3094 | b'unhandled value for nodesorder: %s' % nodesorder |
|
3095 | b'unhandled value for nodesorder: %s' % nodesorder | |
3095 | ) |
|
3096 | ) | |
3096 |
|
3097 | |||
3097 | if nodesorder is None and not self._generaldelta: |
|
3098 | if nodesorder is None and not self._generaldelta: | |
3098 | nodesorder = b'storage' |
|
3099 | nodesorder = b'storage' | |
3099 |
|
3100 | |||
3100 | if ( |
|
3101 | if ( | |
3101 | not self._storedeltachains |
|
3102 | not self._storedeltachains | |
3102 | and deltamode != repository.CG_DELTAMODE_PREV |
|
3103 | and deltamode != repository.CG_DELTAMODE_PREV | |
3103 | ): |
|
3104 | ): | |
3104 | deltamode = repository.CG_DELTAMODE_FULL |
|
3105 | deltamode = repository.CG_DELTAMODE_FULL | |
3105 |
|
3106 | |||
3106 | return storageutil.emitrevisions( |
|
3107 | return storageutil.emitrevisions( | |
3107 | self, |
|
3108 | self, | |
3108 | nodes, |
|
3109 | nodes, | |
3109 | nodesorder, |
|
3110 | nodesorder, | |
3110 | revlogrevisiondelta, |
|
3111 | revlogrevisiondelta, | |
3111 | deltaparentfn=self.deltaparent, |
|
3112 | deltaparentfn=self.deltaparent, | |
3112 | candeltafn=self._candelta, |
|
3113 | candeltafn=self._candelta, | |
3113 | rawsizefn=self.rawsize, |
|
3114 | rawsizefn=self.rawsize, | |
3114 | revdifffn=self.revdiff, |
|
3115 | revdifffn=self.revdiff, | |
3115 | flagsfn=self.flags, |
|
3116 | flagsfn=self.flags, | |
3116 | deltamode=deltamode, |
|
3117 | deltamode=deltamode, | |
3117 | revisiondata=revisiondata, |
|
3118 | revisiondata=revisiondata, | |
3118 | assumehaveparentrevisions=assumehaveparentrevisions, |
|
3119 | assumehaveparentrevisions=assumehaveparentrevisions, | |
3119 | sidedata_helpers=sidedata_helpers, |
|
3120 | sidedata_helpers=sidedata_helpers, | |
3120 | debug_info=debug_info, |
|
3121 | debug_info=debug_info, | |
3121 | ) |
|
3122 | ) | |
3122 |
|
3123 | |||
3123 | DELTAREUSEALWAYS = b'always' |
|
3124 | DELTAREUSEALWAYS = b'always' | |
3124 | DELTAREUSESAMEREVS = b'samerevs' |
|
3125 | DELTAREUSESAMEREVS = b'samerevs' | |
3125 | DELTAREUSENEVER = b'never' |
|
3126 | DELTAREUSENEVER = b'never' | |
3126 |
|
3127 | |||
3127 | DELTAREUSEFULLADD = b'fulladd' |
|
3128 | DELTAREUSEFULLADD = b'fulladd' | |
3128 |
|
3129 | |||
3129 | DELTAREUSEALL = {b'always', b'samerevs', b'never', b'fulladd'} |
|
3130 | DELTAREUSEALL = {b'always', b'samerevs', b'never', b'fulladd'} | |
3130 |
|
3131 | |||
3131 | def clone( |
|
3132 | def clone( | |
3132 | self, |
|
3133 | self, | |
3133 | tr, |
|
3134 | tr, | |
3134 | destrevlog, |
|
3135 | destrevlog, | |
3135 | addrevisioncb=None, |
|
3136 | addrevisioncb=None, | |
3136 | deltareuse=DELTAREUSESAMEREVS, |
|
3137 | deltareuse=DELTAREUSESAMEREVS, | |
3137 | forcedeltabothparents=None, |
|
3138 | forcedeltabothparents=None, | |
3138 | sidedata_helpers=None, |
|
3139 | sidedata_helpers=None, | |
3139 | ): |
|
3140 | ): | |
3140 | """Copy this revlog to another, possibly with format changes. |
|
3141 | """Copy this revlog to another, possibly with format changes. | |
3141 |
|
3142 | |||
3142 | The destination revlog will contain the same revisions and nodes. |
|
3143 | The destination revlog will contain the same revisions and nodes. | |
3143 | However, it may not be bit-for-bit identical due to e.g. delta encoding |
|
3144 | However, it may not be bit-for-bit identical due to e.g. delta encoding | |
3144 | differences. |
|
3145 | differences. | |
3145 |
|
3146 | |||
3146 | The ``deltareuse`` argument control how deltas from the existing revlog |
|
3147 | The ``deltareuse`` argument control how deltas from the existing revlog | |
3147 | are preserved in the destination revlog. The argument can have the |
|
3148 | are preserved in the destination revlog. The argument can have the | |
3148 | following values: |
|
3149 | following values: | |
3149 |
|
3150 | |||
3150 | DELTAREUSEALWAYS |
|
3151 | DELTAREUSEALWAYS | |
3151 | Deltas will always be reused (if possible), even if the destination |
|
3152 | Deltas will always be reused (if possible), even if the destination | |
3152 | revlog would not select the same revisions for the delta. This is the |
|
3153 | revlog would not select the same revisions for the delta. This is the | |
3153 | fastest mode of operation. |
|
3154 | fastest mode of operation. | |
3154 | DELTAREUSESAMEREVS |
|
3155 | DELTAREUSESAMEREVS | |
3155 | Deltas will be reused if the destination revlog would pick the same |
|
3156 | Deltas will be reused if the destination revlog would pick the same | |
3156 | revisions for the delta. This mode strikes a balance between speed |
|
3157 | revisions for the delta. This mode strikes a balance between speed | |
3157 | and optimization. |
|
3158 | and optimization. | |
3158 | DELTAREUSENEVER |
|
3159 | DELTAREUSENEVER | |
3159 | Deltas will never be reused. This is the slowest mode of execution. |
|
3160 | Deltas will never be reused. This is the slowest mode of execution. | |
3160 | This mode can be used to recompute deltas (e.g. if the diff/delta |
|
3161 | This mode can be used to recompute deltas (e.g. if the diff/delta | |
3161 | algorithm changes). |
|
3162 | algorithm changes). | |
3162 | DELTAREUSEFULLADD |
|
3163 | DELTAREUSEFULLADD | |
3163 | Revision will be re-added as if their were new content. This is |
|
3164 | Revision will be re-added as if their were new content. This is | |
3164 | slower than DELTAREUSEALWAYS but allow more mechanism to kicks in. |
|
3165 | slower than DELTAREUSEALWAYS but allow more mechanism to kicks in. | |
3165 | eg: large file detection and handling. |
|
3166 | eg: large file detection and handling. | |
3166 |
|
3167 | |||
3167 | Delta computation can be slow, so the choice of delta reuse policy can |
|
3168 | Delta computation can be slow, so the choice of delta reuse policy can | |
3168 | significantly affect run time. |
|
3169 | significantly affect run time. | |
3169 |
|
3170 | |||
3170 | The default policy (``DELTAREUSESAMEREVS``) strikes a balance between |
|
3171 | The default policy (``DELTAREUSESAMEREVS``) strikes a balance between | |
3171 | two extremes. Deltas will be reused if they are appropriate. But if the |
|
3172 | two extremes. Deltas will be reused if they are appropriate. But if the | |
3172 | delta could choose a better revision, it will do so. This means if you |
|
3173 | delta could choose a better revision, it will do so. This means if you | |
3173 | are converting a non-generaldelta revlog to a generaldelta revlog, |
|
3174 | are converting a non-generaldelta revlog to a generaldelta revlog, | |
3174 | deltas will be recomputed if the delta's parent isn't a parent of the |
|
3175 | deltas will be recomputed if the delta's parent isn't a parent of the | |
3175 | revision. |
|
3176 | revision. | |
3176 |
|
3177 | |||
3177 | In addition to the delta policy, the ``forcedeltabothparents`` |
|
3178 | In addition to the delta policy, the ``forcedeltabothparents`` | |
3178 | argument controls whether to force compute deltas against both parents |
|
3179 | argument controls whether to force compute deltas against both parents | |
3179 | for merges. By default, the current default is used. |
|
3180 | for merges. By default, the current default is used. | |
3180 |
|
3181 | |||
3181 | See `revlogutil.sidedata.get_sidedata_helpers` for the doc on |
|
3182 | See `revlogutil.sidedata.get_sidedata_helpers` for the doc on | |
3182 | `sidedata_helpers`. |
|
3183 | `sidedata_helpers`. | |
3183 | """ |
|
3184 | """ | |
3184 | if deltareuse not in self.DELTAREUSEALL: |
|
3185 | if deltareuse not in self.DELTAREUSEALL: | |
3185 | raise ValueError( |
|
3186 | raise ValueError( | |
3186 | _(b'value for deltareuse invalid: %s') % deltareuse |
|
3187 | _(b'value for deltareuse invalid: %s') % deltareuse | |
3187 | ) |
|
3188 | ) | |
3188 |
|
3189 | |||
3189 | if len(destrevlog): |
|
3190 | if len(destrevlog): | |
3190 | raise ValueError(_(b'destination revlog is not empty')) |
|
3191 | raise ValueError(_(b'destination revlog is not empty')) | |
3191 |
|
3192 | |||
3192 | if getattr(self, 'filteredrevs', None): |
|
3193 | if getattr(self, 'filteredrevs', None): | |
3193 | raise ValueError(_(b'source revlog has filtered revisions')) |
|
3194 | raise ValueError(_(b'source revlog has filtered revisions')) | |
3194 | if getattr(destrevlog, 'filteredrevs', None): |
|
3195 | if getattr(destrevlog, 'filteredrevs', None): | |
3195 | raise ValueError(_(b'destination revlog has filtered revisions')) |
|
3196 | raise ValueError(_(b'destination revlog has filtered revisions')) | |
3196 |
|
3197 | |||
3197 | # lazydelta and lazydeltabase controls whether to reuse a cached delta, |
|
3198 | # lazydelta and lazydeltabase controls whether to reuse a cached delta, | |
3198 | # if possible. |
|
3199 | # if possible. | |
3199 | oldlazydelta = destrevlog._lazydelta |
|
3200 | oldlazydelta = destrevlog._lazydelta | |
3200 | oldlazydeltabase = destrevlog._lazydeltabase |
|
3201 | oldlazydeltabase = destrevlog._lazydeltabase | |
3201 | oldamd = destrevlog._deltabothparents |
|
3202 | oldamd = destrevlog._deltabothparents | |
3202 |
|
3203 | |||
3203 | try: |
|
3204 | try: | |
3204 | if deltareuse == self.DELTAREUSEALWAYS: |
|
3205 | if deltareuse == self.DELTAREUSEALWAYS: | |
3205 | destrevlog._lazydeltabase = True |
|
3206 | destrevlog._lazydeltabase = True | |
3206 | destrevlog._lazydelta = True |
|
3207 | destrevlog._lazydelta = True | |
3207 | elif deltareuse == self.DELTAREUSESAMEREVS: |
|
3208 | elif deltareuse == self.DELTAREUSESAMEREVS: | |
3208 | destrevlog._lazydeltabase = False |
|
3209 | destrevlog._lazydeltabase = False | |
3209 | destrevlog._lazydelta = True |
|
3210 | destrevlog._lazydelta = True | |
3210 | elif deltareuse == self.DELTAREUSENEVER: |
|
3211 | elif deltareuse == self.DELTAREUSENEVER: | |
3211 | destrevlog._lazydeltabase = False |
|
3212 | destrevlog._lazydeltabase = False | |
3212 | destrevlog._lazydelta = False |
|
3213 | destrevlog._lazydelta = False | |
3213 |
|
3214 | |||
3214 | destrevlog._deltabothparents = forcedeltabothparents or oldamd |
|
3215 | destrevlog._deltabothparents = forcedeltabothparents or oldamd | |
3215 |
|
3216 | |||
3216 | self._clone( |
|
3217 | self._clone( | |
3217 | tr, |
|
3218 | tr, | |
3218 | destrevlog, |
|
3219 | destrevlog, | |
3219 | addrevisioncb, |
|
3220 | addrevisioncb, | |
3220 | deltareuse, |
|
3221 | deltareuse, | |
3221 | forcedeltabothparents, |
|
3222 | forcedeltabothparents, | |
3222 | sidedata_helpers, |
|
3223 | sidedata_helpers, | |
3223 | ) |
|
3224 | ) | |
3224 |
|
3225 | |||
3225 | finally: |
|
3226 | finally: | |
3226 | destrevlog._lazydelta = oldlazydelta |
|
3227 | destrevlog._lazydelta = oldlazydelta | |
3227 | destrevlog._lazydeltabase = oldlazydeltabase |
|
3228 | destrevlog._lazydeltabase = oldlazydeltabase | |
3228 | destrevlog._deltabothparents = oldamd |
|
3229 | destrevlog._deltabothparents = oldamd | |
3229 |
|
3230 | |||
3230 | def _clone( |
|
3231 | def _clone( | |
3231 | self, |
|
3232 | self, | |
3232 | tr, |
|
3233 | tr, | |
3233 | destrevlog, |
|
3234 | destrevlog, | |
3234 | addrevisioncb, |
|
3235 | addrevisioncb, | |
3235 | deltareuse, |
|
3236 | deltareuse, | |
3236 | forcedeltabothparents, |
|
3237 | forcedeltabothparents, | |
3237 | sidedata_helpers, |
|
3238 | sidedata_helpers, | |
3238 | ): |
|
3239 | ): | |
3239 | """perform the core duty of `revlog.clone` after parameter processing""" |
|
3240 | """perform the core duty of `revlog.clone` after parameter processing""" | |
3240 | write_debug = None |
|
3241 | write_debug = None | |
3241 | if self._debug_delta: |
|
3242 | if self._debug_delta: | |
3242 | write_debug = tr._report |
|
3243 | write_debug = tr._report | |
3243 | deltacomputer = deltautil.deltacomputer( |
|
3244 | deltacomputer = deltautil.deltacomputer( | |
3244 | destrevlog, |
|
3245 | destrevlog, | |
3245 | write_debug=write_debug, |
|
3246 | write_debug=write_debug, | |
3246 | ) |
|
3247 | ) | |
3247 | index = self.index |
|
3248 | index = self.index | |
3248 | for rev in self: |
|
3249 | for rev in self: | |
3249 | entry = index[rev] |
|
3250 | entry = index[rev] | |
3250 |
|
3251 | |||
3251 | # Some classes override linkrev to take filtered revs into |
|
3252 | # Some classes override linkrev to take filtered revs into | |
3252 | # account. Use raw entry from index. |
|
3253 | # account. Use raw entry from index. | |
3253 | flags = entry[0] & 0xFFFF |
|
3254 | flags = entry[0] & 0xFFFF | |
3254 | linkrev = entry[4] |
|
3255 | linkrev = entry[4] | |
3255 | p1 = index[entry[5]][7] |
|
3256 | p1 = index[entry[5]][7] | |
3256 | p2 = index[entry[6]][7] |
|
3257 | p2 = index[entry[6]][7] | |
3257 | node = entry[7] |
|
3258 | node = entry[7] | |
3258 |
|
3259 | |||
3259 | # (Possibly) reuse the delta from the revlog if allowed and |
|
3260 | # (Possibly) reuse the delta from the revlog if allowed and | |
3260 | # the revlog chunk is a delta. |
|
3261 | # the revlog chunk is a delta. | |
3261 | cachedelta = None |
|
3262 | cachedelta = None | |
3262 | rawtext = None |
|
3263 | rawtext = None | |
3263 | if deltareuse == self.DELTAREUSEFULLADD: |
|
3264 | if deltareuse == self.DELTAREUSEFULLADD: | |
3264 | text = self._revisiondata(rev) |
|
3265 | text = self._revisiondata(rev) | |
3265 | sidedata = self.sidedata(rev) |
|
3266 | sidedata = self.sidedata(rev) | |
3266 |
|
3267 | |||
3267 | if sidedata_helpers is not None: |
|
3268 | if sidedata_helpers is not None: | |
3268 | (sidedata, new_flags) = sidedatautil.run_sidedata_helpers( |
|
3269 | (sidedata, new_flags) = sidedatautil.run_sidedata_helpers( | |
3269 | self, sidedata_helpers, sidedata, rev |
|
3270 | self, sidedata_helpers, sidedata, rev | |
3270 | ) |
|
3271 | ) | |
3271 | flags = flags | new_flags[0] & ~new_flags[1] |
|
3272 | flags = flags | new_flags[0] & ~new_flags[1] | |
3272 |
|
3273 | |||
3273 | destrevlog.addrevision( |
|
3274 | destrevlog.addrevision( | |
3274 | text, |
|
3275 | text, | |
3275 | tr, |
|
3276 | tr, | |
3276 | linkrev, |
|
3277 | linkrev, | |
3277 | p1, |
|
3278 | p1, | |
3278 | p2, |
|
3279 | p2, | |
3279 | cachedelta=cachedelta, |
|
3280 | cachedelta=cachedelta, | |
3280 | node=node, |
|
3281 | node=node, | |
3281 | flags=flags, |
|
3282 | flags=flags, | |
3282 | deltacomputer=deltacomputer, |
|
3283 | deltacomputer=deltacomputer, | |
3283 | sidedata=sidedata, |
|
3284 | sidedata=sidedata, | |
3284 | ) |
|
3285 | ) | |
3285 | else: |
|
3286 | else: | |
3286 | if destrevlog._lazydelta: |
|
3287 | if destrevlog._lazydelta: | |
3287 | dp = self.deltaparent(rev) |
|
3288 | dp = self.deltaparent(rev) | |
3288 | if dp != nullrev: |
|
3289 | if dp != nullrev: | |
3289 | cachedelta = (dp, bytes(self._chunk(rev))) |
|
3290 | cachedelta = (dp, bytes(self._chunk(rev))) | |
3290 |
|
3291 | |||
3291 | sidedata = None |
|
3292 | sidedata = None | |
3292 | if not cachedelta: |
|
3293 | if not cachedelta: | |
3293 | rawtext = self._revisiondata(rev) |
|
3294 | rawtext = self._revisiondata(rev) | |
3294 | sidedata = self.sidedata(rev) |
|
3295 | sidedata = self.sidedata(rev) | |
3295 | if sidedata is None: |
|
3296 | if sidedata is None: | |
3296 | sidedata = self.sidedata(rev) |
|
3297 | sidedata = self.sidedata(rev) | |
3297 |
|
3298 | |||
3298 | if sidedata_helpers is not None: |
|
3299 | if sidedata_helpers is not None: | |
3299 | (sidedata, new_flags) = sidedatautil.run_sidedata_helpers( |
|
3300 | (sidedata, new_flags) = sidedatautil.run_sidedata_helpers( | |
3300 | self, sidedata_helpers, sidedata, rev |
|
3301 | self, sidedata_helpers, sidedata, rev | |
3301 | ) |
|
3302 | ) | |
3302 | flags = flags | new_flags[0] & ~new_flags[1] |
|
3303 | flags = flags | new_flags[0] & ~new_flags[1] | |
3303 |
|
3304 | |||
3304 | with destrevlog._writing(tr): |
|
3305 | with destrevlog._writing(tr): | |
3305 | destrevlog._addrevision( |
|
3306 | destrevlog._addrevision( | |
3306 | node, |
|
3307 | node, | |
3307 | rawtext, |
|
3308 | rawtext, | |
3308 | tr, |
|
3309 | tr, | |
3309 | linkrev, |
|
3310 | linkrev, | |
3310 | p1, |
|
3311 | p1, | |
3311 | p2, |
|
3312 | p2, | |
3312 | flags, |
|
3313 | flags, | |
3313 | cachedelta, |
|
3314 | cachedelta, | |
3314 | deltacomputer=deltacomputer, |
|
3315 | deltacomputer=deltacomputer, | |
3315 | sidedata=sidedata, |
|
3316 | sidedata=sidedata, | |
3316 | ) |
|
3317 | ) | |
3317 |
|
3318 | |||
3318 | if addrevisioncb: |
|
3319 | if addrevisioncb: | |
3319 | addrevisioncb(self, rev, node) |
|
3320 | addrevisioncb(self, rev, node) | |
3320 |
|
3321 | |||
3321 | def censorrevision(self, tr, censornode, tombstone=b''): |
|
3322 | def censorrevision(self, tr, censornode, tombstone=b''): | |
3322 | if self._format_version == REVLOGV0: |
|
3323 | if self._format_version == REVLOGV0: | |
3323 | raise error.RevlogError( |
|
3324 | raise error.RevlogError( | |
3324 | _(b'cannot censor with version %d revlogs') |
|
3325 | _(b'cannot censor with version %d revlogs') | |
3325 | % self._format_version |
|
3326 | % self._format_version | |
3326 | ) |
|
3327 | ) | |
3327 | elif self._format_version == REVLOGV1: |
|
3328 | elif self._format_version == REVLOGV1: | |
3328 | rewrite.v1_censor(self, tr, censornode, tombstone) |
|
3329 | rewrite.v1_censor(self, tr, censornode, tombstone) | |
3329 | else: |
|
3330 | else: | |
3330 | rewrite.v2_censor(self, tr, censornode, tombstone) |
|
3331 | rewrite.v2_censor(self, tr, censornode, tombstone) | |
3331 |
|
3332 | |||
3332 | def verifyintegrity(self, state): |
|
3333 | def verifyintegrity(self, state): | |
3333 | """Verifies the integrity of the revlog. |
|
3334 | """Verifies the integrity of the revlog. | |
3334 |
|
3335 | |||
3335 | Yields ``revlogproblem`` instances describing problems that are |
|
3336 | Yields ``revlogproblem`` instances describing problems that are | |
3336 | found. |
|
3337 | found. | |
3337 | """ |
|
3338 | """ | |
3338 | dd, di = self.checksize() |
|
3339 | dd, di = self.checksize() | |
3339 | if dd: |
|
3340 | if dd: | |
3340 | yield revlogproblem(error=_(b'data length off by %d bytes') % dd) |
|
3341 | yield revlogproblem(error=_(b'data length off by %d bytes') % dd) | |
3341 | if di: |
|
3342 | if di: | |
3342 | yield revlogproblem(error=_(b'index contains %d extra bytes') % di) |
|
3343 | yield revlogproblem(error=_(b'index contains %d extra bytes') % di) | |
3343 |
|
3344 | |||
3344 | version = self._format_version |
|
3345 | version = self._format_version | |
3345 |
|
3346 | |||
3346 | # The verifier tells us what version revlog we should be. |
|
3347 | # The verifier tells us what version revlog we should be. | |
3347 | if version != state[b'expectedversion']: |
|
3348 | if version != state[b'expectedversion']: | |
3348 | yield revlogproblem( |
|
3349 | yield revlogproblem( | |
3349 | warning=_(b"warning: '%s' uses revlog format %d; expected %d") |
|
3350 | warning=_(b"warning: '%s' uses revlog format %d; expected %d") | |
3350 | % (self.display_id, version, state[b'expectedversion']) |
|
3351 | % (self.display_id, version, state[b'expectedversion']) | |
3351 | ) |
|
3352 | ) | |
3352 |
|
3353 | |||
3353 | state[b'skipread'] = set() |
|
3354 | state[b'skipread'] = set() | |
3354 | state[b'safe_renamed'] = set() |
|
3355 | state[b'safe_renamed'] = set() | |
3355 |
|
3356 | |||
3356 | for rev in self: |
|
3357 | for rev in self: | |
3357 | node = self.node(rev) |
|
3358 | node = self.node(rev) | |
3358 |
|
3359 | |||
3359 | # Verify contents. 4 cases to care about: |
|
3360 | # Verify contents. 4 cases to care about: | |
3360 | # |
|
3361 | # | |
3361 | # common: the most common case |
|
3362 | # common: the most common case | |
3362 | # rename: with a rename |
|
3363 | # rename: with a rename | |
3363 | # meta: file content starts with b'\1\n', the metadata |
|
3364 | # meta: file content starts with b'\1\n', the metadata | |
3364 | # header defined in filelog.py, but without a rename |
|
3365 | # header defined in filelog.py, but without a rename | |
3365 | # ext: content stored externally |
|
3366 | # ext: content stored externally | |
3366 | # |
|
3367 | # | |
3367 | # More formally, their differences are shown below: |
|
3368 | # More formally, their differences are shown below: | |
3368 | # |
|
3369 | # | |
3369 | # | common | rename | meta | ext |
|
3370 | # | common | rename | meta | ext | |
3370 | # ------------------------------------------------------- |
|
3371 | # ------------------------------------------------------- | |
3371 | # flags() | 0 | 0 | 0 | not 0 |
|
3372 | # flags() | 0 | 0 | 0 | not 0 | |
3372 | # renamed() | False | True | False | ? |
|
3373 | # renamed() | False | True | False | ? | |
3373 | # rawtext[0:2]=='\1\n'| False | True | True | ? |
|
3374 | # rawtext[0:2]=='\1\n'| False | True | True | ? | |
3374 | # |
|
3375 | # | |
3375 | # "rawtext" means the raw text stored in revlog data, which |
|
3376 | # "rawtext" means the raw text stored in revlog data, which | |
3376 | # could be retrieved by "rawdata(rev)". "text" |
|
3377 | # could be retrieved by "rawdata(rev)". "text" | |
3377 | # mentioned below is "revision(rev)". |
|
3378 | # mentioned below is "revision(rev)". | |
3378 | # |
|
3379 | # | |
3379 | # There are 3 different lengths stored physically: |
|
3380 | # There are 3 different lengths stored physically: | |
3380 | # 1. L1: rawsize, stored in revlog index |
|
3381 | # 1. L1: rawsize, stored in revlog index | |
3381 | # 2. L2: len(rawtext), stored in revlog data |
|
3382 | # 2. L2: len(rawtext), stored in revlog data | |
3382 | # 3. L3: len(text), stored in revlog data if flags==0, or |
|
3383 | # 3. L3: len(text), stored in revlog data if flags==0, or | |
3383 | # possibly somewhere else if flags!=0 |
|
3384 | # possibly somewhere else if flags!=0 | |
3384 | # |
|
3385 | # | |
3385 | # L1 should be equal to L2. L3 could be different from them. |
|
3386 | # L1 should be equal to L2. L3 could be different from them. | |
3386 | # "text" may or may not affect commit hash depending on flag |
|
3387 | # "text" may or may not affect commit hash depending on flag | |
3387 | # processors (see flagutil.addflagprocessor). |
|
3388 | # processors (see flagutil.addflagprocessor). | |
3388 | # |
|
3389 | # | |
3389 | # | common | rename | meta | ext |
|
3390 | # | common | rename | meta | ext | |
3390 | # ------------------------------------------------- |
|
3391 | # ------------------------------------------------- | |
3391 | # rawsize() | L1 | L1 | L1 | L1 |
|
3392 | # rawsize() | L1 | L1 | L1 | L1 | |
3392 | # size() | L1 | L2-LM | L1(*) | L1 (?) |
|
3393 | # size() | L1 | L2-LM | L1(*) | L1 (?) | |
3393 | # len(rawtext) | L2 | L2 | L2 | L2 |
|
3394 | # len(rawtext) | L2 | L2 | L2 | L2 | |
3394 | # len(text) | L2 | L2 | L2 | L3 |
|
3395 | # len(text) | L2 | L2 | L2 | L3 | |
3395 | # len(read()) | L2 | L2-LM | L2-LM | L3 (?) |
|
3396 | # len(read()) | L2 | L2-LM | L2-LM | L3 (?) | |
3396 | # |
|
3397 | # | |
3397 | # LM: length of metadata, depending on rawtext |
|
3398 | # LM: length of metadata, depending on rawtext | |
3398 | # (*): not ideal, see comment in filelog.size |
|
3399 | # (*): not ideal, see comment in filelog.size | |
3399 | # (?): could be "- len(meta)" if the resolved content has |
|
3400 | # (?): could be "- len(meta)" if the resolved content has | |
3400 | # rename metadata |
|
3401 | # rename metadata | |
3401 | # |
|
3402 | # | |
3402 | # Checks needed to be done: |
|
3403 | # Checks needed to be done: | |
3403 | # 1. length check: L1 == L2, in all cases. |
|
3404 | # 1. length check: L1 == L2, in all cases. | |
3404 | # 2. hash check: depending on flag processor, we may need to |
|
3405 | # 2. hash check: depending on flag processor, we may need to | |
3405 | # use either "text" (external), or "rawtext" (in revlog). |
|
3406 | # use either "text" (external), or "rawtext" (in revlog). | |
3406 |
|
3407 | |||
3407 | try: |
|
3408 | try: | |
3408 | skipflags = state.get(b'skipflags', 0) |
|
3409 | skipflags = state.get(b'skipflags', 0) | |
3409 | if skipflags: |
|
3410 | if skipflags: | |
3410 | skipflags &= self.flags(rev) |
|
3411 | skipflags &= self.flags(rev) | |
3411 |
|
3412 | |||
3412 | _verify_revision(self, skipflags, state, node) |
|
3413 | _verify_revision(self, skipflags, state, node) | |
3413 |
|
3414 | |||
3414 | l1 = self.rawsize(rev) |
|
3415 | l1 = self.rawsize(rev) | |
3415 | l2 = len(self.rawdata(node)) |
|
3416 | l2 = len(self.rawdata(node)) | |
3416 |
|
3417 | |||
3417 | if l1 != l2: |
|
3418 | if l1 != l2: | |
3418 | yield revlogproblem( |
|
3419 | yield revlogproblem( | |
3419 | error=_(b'unpacked size is %d, %d expected') % (l2, l1), |
|
3420 | error=_(b'unpacked size is %d, %d expected') % (l2, l1), | |
3420 | node=node, |
|
3421 | node=node, | |
3421 | ) |
|
3422 | ) | |
3422 |
|
3423 | |||
3423 | except error.CensoredNodeError: |
|
3424 | except error.CensoredNodeError: | |
3424 | if state[b'erroroncensored']: |
|
3425 | if state[b'erroroncensored']: | |
3425 | yield revlogproblem( |
|
3426 | yield revlogproblem( | |
3426 | error=_(b'censored file data'), node=node |
|
3427 | error=_(b'censored file data'), node=node | |
3427 | ) |
|
3428 | ) | |
3428 | state[b'skipread'].add(node) |
|
3429 | state[b'skipread'].add(node) | |
3429 | except Exception as e: |
|
3430 | except Exception as e: | |
3430 | yield revlogproblem( |
|
3431 | yield revlogproblem( | |
3431 | error=_(b'unpacking %s: %s') |
|
3432 | error=_(b'unpacking %s: %s') | |
3432 | % (short(node), stringutil.forcebytestr(e)), |
|
3433 | % (short(node), stringutil.forcebytestr(e)), | |
3433 | node=node, |
|
3434 | node=node, | |
3434 | ) |
|
3435 | ) | |
3435 | state[b'skipread'].add(node) |
|
3436 | state[b'skipread'].add(node) | |
3436 |
|
3437 | |||
3437 | def storageinfo( |
|
3438 | def storageinfo( | |
3438 | self, |
|
3439 | self, | |
3439 | exclusivefiles=False, |
|
3440 | exclusivefiles=False, | |
3440 | sharedfiles=False, |
|
3441 | sharedfiles=False, | |
3441 | revisionscount=False, |
|
3442 | revisionscount=False, | |
3442 | trackedsize=False, |
|
3443 | trackedsize=False, | |
3443 | storedsize=False, |
|
3444 | storedsize=False, | |
3444 | ): |
|
3445 | ): | |
3445 | d = {} |
|
3446 | d = {} | |
3446 |
|
3447 | |||
3447 | if exclusivefiles: |
|
3448 | if exclusivefiles: | |
3448 | d[b'exclusivefiles'] = [(self.opener, self._indexfile)] |
|
3449 | d[b'exclusivefiles'] = [(self.opener, self._indexfile)] | |
3449 | if not self._inline: |
|
3450 | if not self._inline: | |
3450 | d[b'exclusivefiles'].append((self.opener, self._datafile)) |
|
3451 | d[b'exclusivefiles'].append((self.opener, self._datafile)) | |
3451 |
|
3452 | |||
3452 | if sharedfiles: |
|
3453 | if sharedfiles: | |
3453 | d[b'sharedfiles'] = [] |
|
3454 | d[b'sharedfiles'] = [] | |
3454 |
|
3455 | |||
3455 | if revisionscount: |
|
3456 | if revisionscount: | |
3456 | d[b'revisionscount'] = len(self) |
|
3457 | d[b'revisionscount'] = len(self) | |
3457 |
|
3458 | |||
3458 | if trackedsize: |
|
3459 | if trackedsize: | |
3459 | d[b'trackedsize'] = sum(map(self.rawsize, iter(self))) |
|
3460 | d[b'trackedsize'] = sum(map(self.rawsize, iter(self))) | |
3460 |
|
3461 | |||
3461 | if storedsize: |
|
3462 | if storedsize: | |
3462 | d[b'storedsize'] = sum( |
|
3463 | d[b'storedsize'] = sum( | |
3463 | self.opener.stat(path).st_size for path in self.files() |
|
3464 | self.opener.stat(path).st_size for path in self.files() | |
3464 | ) |
|
3465 | ) | |
3465 |
|
3466 | |||
3466 | return d |
|
3467 | return d | |
3467 |
|
3468 | |||
3468 | def rewrite_sidedata(self, transaction, helpers, startrev, endrev): |
|
3469 | def rewrite_sidedata(self, transaction, helpers, startrev, endrev): | |
3469 | if not self.hassidedata: |
|
3470 | if not self.hassidedata: | |
3470 | return |
|
3471 | return | |
3471 | # revlog formats with sidedata support does not support inline |
|
3472 | # revlog formats with sidedata support does not support inline | |
3472 | assert not self._inline |
|
3473 | assert not self._inline | |
3473 | if not helpers[1] and not helpers[2]: |
|
3474 | if not helpers[1] and not helpers[2]: | |
3474 | # Nothing to generate or remove |
|
3475 | # Nothing to generate or remove | |
3475 | return |
|
3476 | return | |
3476 |
|
3477 | |||
3477 | new_entries = [] |
|
3478 | new_entries = [] | |
3478 | # append the new sidedata |
|
3479 | # append the new sidedata | |
3479 | with self._writing(transaction): |
|
3480 | with self._writing(transaction): | |
3480 | ifh, dfh, sdfh = self._writinghandles |
|
3481 | ifh, dfh, sdfh = self._writinghandles | |
3481 | dfh.seek(self._docket.sidedata_end, os.SEEK_SET) |
|
3482 | dfh.seek(self._docket.sidedata_end, os.SEEK_SET) | |
3482 |
|
3483 | |||
3483 | current_offset = sdfh.tell() |
|
3484 | current_offset = sdfh.tell() | |
3484 | for rev in range(startrev, endrev + 1): |
|
3485 | for rev in range(startrev, endrev + 1): | |
3485 | entry = self.index[rev] |
|
3486 | entry = self.index[rev] | |
3486 | new_sidedata, flags = sidedatautil.run_sidedata_helpers( |
|
3487 | new_sidedata, flags = sidedatautil.run_sidedata_helpers( | |
3487 | store=self, |
|
3488 | store=self, | |
3488 | sidedata_helpers=helpers, |
|
3489 | sidedata_helpers=helpers, | |
3489 | sidedata={}, |
|
3490 | sidedata={}, | |
3490 | rev=rev, |
|
3491 | rev=rev, | |
3491 | ) |
|
3492 | ) | |
3492 |
|
3493 | |||
3493 | serialized_sidedata = sidedatautil.serialize_sidedata( |
|
3494 | serialized_sidedata = sidedatautil.serialize_sidedata( | |
3494 | new_sidedata |
|
3495 | new_sidedata | |
3495 | ) |
|
3496 | ) | |
3496 |
|
3497 | |||
3497 | sidedata_compression_mode = COMP_MODE_INLINE |
|
3498 | sidedata_compression_mode = COMP_MODE_INLINE | |
3498 | if serialized_sidedata and self.hassidedata: |
|
3499 | if serialized_sidedata and self.hassidedata: | |
3499 | sidedata_compression_mode = COMP_MODE_PLAIN |
|
3500 | sidedata_compression_mode = COMP_MODE_PLAIN | |
3500 | h, comp_sidedata = self.compress(serialized_sidedata) |
|
3501 | h, comp_sidedata = self.compress(serialized_sidedata) | |
3501 | if ( |
|
3502 | if ( | |
3502 | h != b'u' |
|
3503 | h != b'u' | |
3503 | and comp_sidedata[0] != b'\0' |
|
3504 | and comp_sidedata[0] != b'\0' | |
3504 | and len(comp_sidedata) < len(serialized_sidedata) |
|
3505 | and len(comp_sidedata) < len(serialized_sidedata) | |
3505 | ): |
|
3506 | ): | |
3506 | assert not h |
|
3507 | assert not h | |
3507 | if ( |
|
3508 | if ( | |
3508 | comp_sidedata[0] |
|
3509 | comp_sidedata[0] | |
3509 | == self._docket.default_compression_header |
|
3510 | == self._docket.default_compression_header | |
3510 | ): |
|
3511 | ): | |
3511 | sidedata_compression_mode = COMP_MODE_DEFAULT |
|
3512 | sidedata_compression_mode = COMP_MODE_DEFAULT | |
3512 | serialized_sidedata = comp_sidedata |
|
3513 | serialized_sidedata = comp_sidedata | |
3513 | else: |
|
3514 | else: | |
3514 | sidedata_compression_mode = COMP_MODE_INLINE |
|
3515 | sidedata_compression_mode = COMP_MODE_INLINE | |
3515 | serialized_sidedata = comp_sidedata |
|
3516 | serialized_sidedata = comp_sidedata | |
3516 | if entry[8] != 0 or entry[9] != 0: |
|
3517 | if entry[8] != 0 or entry[9] != 0: | |
3517 | # rewriting entries that already have sidedata is not |
|
3518 | # rewriting entries that already have sidedata is not | |
3518 | # supported yet, because it introduces garbage data in the |
|
3519 | # supported yet, because it introduces garbage data in the | |
3519 | # revlog. |
|
3520 | # revlog. | |
3520 | msg = b"rewriting existing sidedata is not supported yet" |
|
3521 | msg = b"rewriting existing sidedata is not supported yet" | |
3521 | raise error.Abort(msg) |
|
3522 | raise error.Abort(msg) | |
3522 |
|
3523 | |||
3523 | # Apply (potential) flags to add and to remove after running |
|
3524 | # Apply (potential) flags to add and to remove after running | |
3524 | # the sidedata helpers |
|
3525 | # the sidedata helpers | |
3525 | new_offset_flags = entry[0] | flags[0] & ~flags[1] |
|
3526 | new_offset_flags = entry[0] | flags[0] & ~flags[1] | |
3526 | entry_update = ( |
|
3527 | entry_update = ( | |
3527 | current_offset, |
|
3528 | current_offset, | |
3528 | len(serialized_sidedata), |
|
3529 | len(serialized_sidedata), | |
3529 | new_offset_flags, |
|
3530 | new_offset_flags, | |
3530 | sidedata_compression_mode, |
|
3531 | sidedata_compression_mode, | |
3531 | ) |
|
3532 | ) | |
3532 |
|
3533 | |||
3533 | # the sidedata computation might have move the file cursors around |
|
3534 | # the sidedata computation might have move the file cursors around | |
3534 | sdfh.seek(current_offset, os.SEEK_SET) |
|
3535 | sdfh.seek(current_offset, os.SEEK_SET) | |
3535 | sdfh.write(serialized_sidedata) |
|
3536 | sdfh.write(serialized_sidedata) | |
3536 | new_entries.append(entry_update) |
|
3537 | new_entries.append(entry_update) | |
3537 | current_offset += len(serialized_sidedata) |
|
3538 | current_offset += len(serialized_sidedata) | |
3538 | self._docket.sidedata_end = sdfh.tell() |
|
3539 | self._docket.sidedata_end = sdfh.tell() | |
3539 |
|
3540 | |||
3540 | # rewrite the new index entries |
|
3541 | # rewrite the new index entries | |
3541 | ifh.seek(startrev * self.index.entry_size) |
|
3542 | ifh.seek(startrev * self.index.entry_size) | |
3542 | for i, e in enumerate(new_entries): |
|
3543 | for i, e in enumerate(new_entries): | |
3543 | rev = startrev + i |
|
3544 | rev = startrev + i | |
3544 | self.index.replace_sidedata_info(rev, *e) |
|
3545 | self.index.replace_sidedata_info(rev, *e) | |
3545 | packed = self.index.entry_binary(rev) |
|
3546 | packed = self.index.entry_binary(rev) | |
3546 | if rev == 0 and self._docket is None: |
|
3547 | if rev == 0 and self._docket is None: | |
3547 | header = self._format_flags | self._format_version |
|
3548 | header = self._format_flags | self._format_version | |
3548 | header = self.index.pack_header(header) |
|
3549 | header = self.index.pack_header(header) | |
3549 | packed = header + packed |
|
3550 | packed = header + packed | |
3550 | ifh.write(packed) |
|
3551 | ifh.write(packed) |
General Comments 0
You need to be logged in to leave comments.
Login now