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@@ -1,784 +1,784 b'' | |||||
1 | # perf.py - performance test routines |
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1 | # perf.py - performance test routines | |
2 | '''helper extension to measure performance''' |
|
2 | '''helper extension to measure performance''' | |
3 |
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3 | |||
4 | from mercurial import cmdutil, scmutil, util, commands, obsolete |
|
4 | from mercurial import cmdutil, scmutil, util, commands, obsolete | |
5 | from mercurial import repoview, branchmap, merge, copies, error, revlog |
|
5 | from mercurial import repoview, branchmap, merge, copies, error, revlog | |
6 | from mercurial import mdiff |
|
6 | from mercurial import mdiff | |
7 | import time, os, sys |
|
7 | import time, os, sys | |
8 | import random |
|
8 | import random | |
9 | import functools |
|
9 | import functools | |
10 |
|
10 | |||
11 | formatteropts = commands.formatteropts |
|
11 | formatteropts = commands.formatteropts | |
12 | revlogopts = commands.debugrevlogopts |
|
12 | revlogopts = commands.debugrevlogopts | |
13 |
|
13 | |||
14 | cmdtable = {} |
|
14 | cmdtable = {} | |
15 | command = cmdutil.command(cmdtable) |
|
15 | command = cmdutil.command(cmdtable) | |
16 |
|
16 | |||
17 | def getlen(ui): |
|
17 | def getlen(ui): | |
18 | if ui.configbool("perf", "stub"): |
|
18 | if ui.configbool("perf", "stub"): | |
19 | return lambda x: 1 |
|
19 | return lambda x: 1 | |
20 | return len |
|
20 | return len | |
21 |
|
21 | |||
22 | def gettimer(ui, opts=None): |
|
22 | def gettimer(ui, opts=None): | |
23 | """return a timer function and formatter: (timer, formatter) |
|
23 | """return a timer function and formatter: (timer, formatter) | |
24 |
|
24 | |||
25 | This function exists to gather the creation of formatter in a single |
|
25 | This function exists to gather the creation of formatter in a single | |
26 | place instead of duplicating it in all performance commands.""" |
|
26 | place instead of duplicating it in all performance commands.""" | |
27 |
|
27 | |||
28 | # enforce an idle period before execution to counteract power management |
|
28 | # enforce an idle period before execution to counteract power management | |
29 | # experimental config: perf.presleep |
|
29 | # experimental config: perf.presleep | |
30 | time.sleep(ui.configint("perf", "presleep", 1)) |
|
30 | time.sleep(ui.configint("perf", "presleep", 1)) | |
31 |
|
31 | |||
32 | if opts is None: |
|
32 | if opts is None: | |
33 | opts = {} |
|
33 | opts = {} | |
34 | # redirect all to stderr |
|
34 | # redirect all to stderr | |
35 | ui = ui.copy() |
|
35 | ui = ui.copy() | |
36 | ui.fout = ui.ferr |
|
36 | ui.fout = ui.ferr | |
37 | # get a formatter |
|
37 | # get a formatter | |
38 | fm = ui.formatter('perf', opts) |
|
38 | fm = ui.formatter('perf', opts) | |
39 | # stub function, runs code only once instead of in a loop |
|
39 | # stub function, runs code only once instead of in a loop | |
40 | # experimental config: perf.stub |
|
40 | # experimental config: perf.stub | |
41 | if ui.configbool("perf", "stub"): |
|
41 | if ui.configbool("perf", "stub"): | |
42 | return functools.partial(stub_timer, fm), fm |
|
42 | return functools.partial(stub_timer, fm), fm | |
43 | return functools.partial(_timer, fm), fm |
|
43 | return functools.partial(_timer, fm), fm | |
44 |
|
44 | |||
45 | def stub_timer(fm, func, title=None): |
|
45 | def stub_timer(fm, func, title=None): | |
46 | func() |
|
46 | func() | |
47 |
|
47 | |||
48 | def _timer(fm, func, title=None): |
|
48 | def _timer(fm, func, title=None): | |
49 | results = [] |
|
49 | results = [] | |
50 | begin = time.time() |
|
50 | begin = time.time() | |
51 | count = 0 |
|
51 | count = 0 | |
52 | while True: |
|
52 | while True: | |
53 | ostart = os.times() |
|
53 | ostart = os.times() | |
54 | cstart = time.time() |
|
54 | cstart = time.time() | |
55 | r = func() |
|
55 | r = func() | |
56 | cstop = time.time() |
|
56 | cstop = time.time() | |
57 | ostop = os.times() |
|
57 | ostop = os.times() | |
58 | count += 1 |
|
58 | count += 1 | |
59 | a, b = ostart, ostop |
|
59 | a, b = ostart, ostop | |
60 | results.append((cstop - cstart, b[0] - a[0], b[1]-a[1])) |
|
60 | results.append((cstop - cstart, b[0] - a[0], b[1]-a[1])) | |
61 | if cstop - begin > 3 and count >= 100: |
|
61 | if cstop - begin > 3 and count >= 100: | |
62 | break |
|
62 | break | |
63 | if cstop - begin > 10 and count >= 3: |
|
63 | if cstop - begin > 10 and count >= 3: | |
64 | break |
|
64 | break | |
65 |
|
65 | |||
66 | fm.startitem() |
|
66 | fm.startitem() | |
67 |
|
67 | |||
68 | if title: |
|
68 | if title: | |
69 | fm.write('title', '! %s\n', title) |
|
69 | fm.write('title', '! %s\n', title) | |
70 | if r: |
|
70 | if r: | |
71 | fm.write('result', '! result: %s\n', r) |
|
71 | fm.write('result', '! result: %s\n', r) | |
72 | m = min(results) |
|
72 | m = min(results) | |
73 | fm.plain('!') |
|
73 | fm.plain('!') | |
74 | fm.write('wall', ' wall %f', m[0]) |
|
74 | fm.write('wall', ' wall %f', m[0]) | |
75 | fm.write('comb', ' comb %f', m[1] + m[2]) |
|
75 | fm.write('comb', ' comb %f', m[1] + m[2]) | |
76 | fm.write('user', ' user %f', m[1]) |
|
76 | fm.write('user', ' user %f', m[1]) | |
77 | fm.write('sys', ' sys %f', m[2]) |
|
77 | fm.write('sys', ' sys %f', m[2]) | |
78 | fm.write('count', ' (best of %d)', count) |
|
78 | fm.write('count', ' (best of %d)', count) | |
79 | fm.plain('\n') |
|
79 | fm.plain('\n') | |
80 |
|
80 | |||
81 | @command('perfwalk', formatteropts) |
|
81 | @command('perfwalk', formatteropts) | |
82 | def perfwalk(ui, repo, *pats, **opts): |
|
82 | def perfwalk(ui, repo, *pats, **opts): | |
83 | timer, fm = gettimer(ui, opts) |
|
83 | timer, fm = gettimer(ui, opts) | |
84 | try: |
|
84 | try: | |
85 | m = scmutil.match(repo[None], pats, {}) |
|
85 | m = scmutil.match(repo[None], pats, {}) | |
86 | timer(lambda: len(list(repo.dirstate.walk(m, [], True, False)))) |
|
86 | timer(lambda: len(list(repo.dirstate.walk(m, [], True, False)))) | |
87 | except Exception: |
|
87 | except Exception: | |
88 | try: |
|
88 | try: | |
89 | m = scmutil.match(repo[None], pats, {}) |
|
89 | m = scmutil.match(repo[None], pats, {}) | |
90 | timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)])) |
|
90 | timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)])) | |
91 | except Exception: |
|
91 | except Exception: | |
92 | timer(lambda: len(list(cmdutil.walk(repo, pats, {})))) |
|
92 | timer(lambda: len(list(cmdutil.walk(repo, pats, {})))) | |
93 | fm.end() |
|
93 | fm.end() | |
94 |
|
94 | |||
95 | @command('perfannotate', formatteropts) |
|
95 | @command('perfannotate', formatteropts) | |
96 | def perfannotate(ui, repo, f, **opts): |
|
96 | def perfannotate(ui, repo, f, **opts): | |
97 | timer, fm = gettimer(ui, opts) |
|
97 | timer, fm = gettimer(ui, opts) | |
98 | fc = repo['.'][f] |
|
98 | fc = repo['.'][f] | |
99 | timer(lambda: len(fc.annotate(True))) |
|
99 | timer(lambda: len(fc.annotate(True))) | |
100 | fm.end() |
|
100 | fm.end() | |
101 |
|
101 | |||
102 | @command('perfstatus', |
|
102 | @command('perfstatus', | |
103 | [('u', 'unknown', False, |
|
103 | [('u', 'unknown', False, | |
104 | 'ask status to look for unknown files')] + formatteropts) |
|
104 | 'ask status to look for unknown files')] + formatteropts) | |
105 | def perfstatus(ui, repo, **opts): |
|
105 | def perfstatus(ui, repo, **opts): | |
106 | #m = match.always(repo.root, repo.getcwd()) |
|
106 | #m = match.always(repo.root, repo.getcwd()) | |
107 | #timer(lambda: sum(map(len, repo.dirstate.status(m, [], False, False, |
|
107 | #timer(lambda: sum(map(len, repo.dirstate.status(m, [], False, False, | |
108 | # False)))) |
|
108 | # False)))) | |
109 | timer, fm = gettimer(ui, opts) |
|
109 | timer, fm = gettimer(ui, opts) | |
110 | timer(lambda: sum(map(len, repo.status(unknown=opts['unknown'])))) |
|
110 | timer(lambda: sum(map(len, repo.status(unknown=opts['unknown'])))) | |
111 | fm.end() |
|
111 | fm.end() | |
112 |
|
112 | |||
113 | @command('perfaddremove', formatteropts) |
|
113 | @command('perfaddremove', formatteropts) | |
114 | def perfaddremove(ui, repo, **opts): |
|
114 | def perfaddremove(ui, repo, **opts): | |
115 | timer, fm = gettimer(ui, opts) |
|
115 | timer, fm = gettimer(ui, opts) | |
116 | try: |
|
116 | try: | |
117 | oldquiet = repo.ui.quiet |
|
117 | oldquiet = repo.ui.quiet | |
118 | repo.ui.quiet = True |
|
118 | repo.ui.quiet = True | |
119 | matcher = scmutil.match(repo[None]) |
|
119 | matcher = scmutil.match(repo[None]) | |
120 | timer(lambda: scmutil.addremove(repo, matcher, "", dry_run=True)) |
|
120 | timer(lambda: scmutil.addremove(repo, matcher, "", dry_run=True)) | |
121 | finally: |
|
121 | finally: | |
122 | repo.ui.quiet = oldquiet |
|
122 | repo.ui.quiet = oldquiet | |
123 | fm.end() |
|
123 | fm.end() | |
124 |
|
124 | |||
125 | def clearcaches(cl): |
|
125 | def clearcaches(cl): | |
126 | # behave somewhat consistently across internal API changes |
|
126 | # behave somewhat consistently across internal API changes | |
127 | if util.safehasattr(cl, 'clearcaches'): |
|
127 | if util.safehasattr(cl, 'clearcaches'): | |
128 | cl.clearcaches() |
|
128 | cl.clearcaches() | |
129 | elif util.safehasattr(cl, '_nodecache'): |
|
129 | elif util.safehasattr(cl, '_nodecache'): | |
130 | from mercurial.node import nullid, nullrev |
|
130 | from mercurial.node import nullid, nullrev | |
131 | cl._nodecache = {nullid: nullrev} |
|
131 | cl._nodecache = {nullid: nullrev} | |
132 | cl._nodepos = None |
|
132 | cl._nodepos = None | |
133 |
|
133 | |||
134 | @command('perfheads', formatteropts) |
|
134 | @command('perfheads', formatteropts) | |
135 | def perfheads(ui, repo, **opts): |
|
135 | def perfheads(ui, repo, **opts): | |
136 | timer, fm = gettimer(ui, opts) |
|
136 | timer, fm = gettimer(ui, opts) | |
137 | cl = repo.changelog |
|
137 | cl = repo.changelog | |
138 | def d(): |
|
138 | def d(): | |
139 | len(cl.headrevs()) |
|
139 | len(cl.headrevs()) | |
140 | clearcaches(cl) |
|
140 | clearcaches(cl) | |
141 | timer(d) |
|
141 | timer(d) | |
142 | fm.end() |
|
142 | fm.end() | |
143 |
|
143 | |||
144 | @command('perftags', formatteropts) |
|
144 | @command('perftags', formatteropts) | |
145 | def perftags(ui, repo, **opts): |
|
145 | def perftags(ui, repo, **opts): | |
146 | import mercurial.changelog |
|
146 | import mercurial.changelog | |
147 | import mercurial.manifest |
|
147 | import mercurial.manifest | |
148 | timer, fm = gettimer(ui, opts) |
|
148 | timer, fm = gettimer(ui, opts) | |
149 | def t(): |
|
149 | def t(): | |
150 | repo.changelog = mercurial.changelog.changelog(repo.svfs) |
|
150 | repo.changelog = mercurial.changelog.changelog(repo.svfs) | |
151 | repo.manifest = mercurial.manifest.manifest(repo.svfs) |
|
151 | repo.manifest = mercurial.manifest.manifest(repo.svfs) | |
152 | repo._tags = None |
|
152 | repo._tags = None | |
153 | return len(repo.tags()) |
|
153 | return len(repo.tags()) | |
154 | timer(t) |
|
154 | timer(t) | |
155 | fm.end() |
|
155 | fm.end() | |
156 |
|
156 | |||
157 | @command('perfancestors', formatteropts) |
|
157 | @command('perfancestors', formatteropts) | |
158 | def perfancestors(ui, repo, **opts): |
|
158 | def perfancestors(ui, repo, **opts): | |
159 | timer, fm = gettimer(ui, opts) |
|
159 | timer, fm = gettimer(ui, opts) | |
160 | heads = repo.changelog.headrevs() |
|
160 | heads = repo.changelog.headrevs() | |
161 | def d(): |
|
161 | def d(): | |
162 | for a in repo.changelog.ancestors(heads): |
|
162 | for a in repo.changelog.ancestors(heads): | |
163 | pass |
|
163 | pass | |
164 | timer(d) |
|
164 | timer(d) | |
165 | fm.end() |
|
165 | fm.end() | |
166 |
|
166 | |||
167 | @command('perfancestorset', formatteropts) |
|
167 | @command('perfancestorset', formatteropts) | |
168 | def perfancestorset(ui, repo, revset, **opts): |
|
168 | def perfancestorset(ui, repo, revset, **opts): | |
169 | timer, fm = gettimer(ui, opts) |
|
169 | timer, fm = gettimer(ui, opts) | |
170 | revs = repo.revs(revset) |
|
170 | revs = repo.revs(revset) | |
171 | heads = repo.changelog.headrevs() |
|
171 | heads = repo.changelog.headrevs() | |
172 | def d(): |
|
172 | def d(): | |
173 | s = repo.changelog.ancestors(heads) |
|
173 | s = repo.changelog.ancestors(heads) | |
174 | for rev in revs: |
|
174 | for rev in revs: | |
175 | rev in s |
|
175 | rev in s | |
176 | timer(d) |
|
176 | timer(d) | |
177 | fm.end() |
|
177 | fm.end() | |
178 |
|
178 | |||
179 | @command('perfdirs', formatteropts) |
|
179 | @command('perfdirs', formatteropts) | |
180 | def perfdirs(ui, repo, **opts): |
|
180 | def perfdirs(ui, repo, **opts): | |
181 | timer, fm = gettimer(ui, opts) |
|
181 | timer, fm = gettimer(ui, opts) | |
182 | dirstate = repo.dirstate |
|
182 | dirstate = repo.dirstate | |
183 | 'a' in dirstate |
|
183 | 'a' in dirstate | |
184 | def d(): |
|
184 | def d(): | |
185 | dirstate.dirs() |
|
185 | dirstate.dirs() | |
186 | del dirstate._dirs |
|
186 | del dirstate._dirs | |
187 | timer(d) |
|
187 | timer(d) | |
188 | fm.end() |
|
188 | fm.end() | |
189 |
|
189 | |||
190 | @command('perfdirstate', formatteropts) |
|
190 | @command('perfdirstate', formatteropts) | |
191 | def perfdirstate(ui, repo, **opts): |
|
191 | def perfdirstate(ui, repo, **opts): | |
192 | timer, fm = gettimer(ui, opts) |
|
192 | timer, fm = gettimer(ui, opts) | |
193 | "a" in repo.dirstate |
|
193 | "a" in repo.dirstate | |
194 | def d(): |
|
194 | def d(): | |
195 | repo.dirstate.invalidate() |
|
195 | repo.dirstate.invalidate() | |
196 | "a" in repo.dirstate |
|
196 | "a" in repo.dirstate | |
197 | timer(d) |
|
197 | timer(d) | |
198 | fm.end() |
|
198 | fm.end() | |
199 |
|
199 | |||
200 | @command('perfdirstatedirs', formatteropts) |
|
200 | @command('perfdirstatedirs', formatteropts) | |
201 | def perfdirstatedirs(ui, repo, **opts): |
|
201 | def perfdirstatedirs(ui, repo, **opts): | |
202 | timer, fm = gettimer(ui, opts) |
|
202 | timer, fm = gettimer(ui, opts) | |
203 | "a" in repo.dirstate |
|
203 | "a" in repo.dirstate | |
204 | def d(): |
|
204 | def d(): | |
205 | "a" in repo.dirstate._dirs |
|
205 | "a" in repo.dirstate._dirs | |
206 | del repo.dirstate._dirs |
|
206 | del repo.dirstate._dirs | |
207 | timer(d) |
|
207 | timer(d) | |
208 | fm.end() |
|
208 | fm.end() | |
209 |
|
209 | |||
210 | @command('perfdirstatefoldmap', formatteropts) |
|
210 | @command('perfdirstatefoldmap', formatteropts) | |
211 | def perfdirstatefoldmap(ui, repo, **opts): |
|
211 | def perfdirstatefoldmap(ui, repo, **opts): | |
212 | timer, fm = gettimer(ui, opts) |
|
212 | timer, fm = gettimer(ui, opts) | |
213 | dirstate = repo.dirstate |
|
213 | dirstate = repo.dirstate | |
214 | 'a' in dirstate |
|
214 | 'a' in dirstate | |
215 | def d(): |
|
215 | def d(): | |
216 | dirstate._filefoldmap.get('a') |
|
216 | dirstate._filefoldmap.get('a') | |
217 | del dirstate._filefoldmap |
|
217 | del dirstate._filefoldmap | |
218 | timer(d) |
|
218 | timer(d) | |
219 | fm.end() |
|
219 | fm.end() | |
220 |
|
220 | |||
221 | @command('perfdirfoldmap', formatteropts) |
|
221 | @command('perfdirfoldmap', formatteropts) | |
222 | def perfdirfoldmap(ui, repo, **opts): |
|
222 | def perfdirfoldmap(ui, repo, **opts): | |
223 | timer, fm = gettimer(ui, opts) |
|
223 | timer, fm = gettimer(ui, opts) | |
224 | dirstate = repo.dirstate |
|
224 | dirstate = repo.dirstate | |
225 | 'a' in dirstate |
|
225 | 'a' in dirstate | |
226 | def d(): |
|
226 | def d(): | |
227 | dirstate._dirfoldmap.get('a') |
|
227 | dirstate._dirfoldmap.get('a') | |
228 | del dirstate._dirfoldmap |
|
228 | del dirstate._dirfoldmap | |
229 | del dirstate._dirs |
|
229 | del dirstate._dirs | |
230 | timer(d) |
|
230 | timer(d) | |
231 | fm.end() |
|
231 | fm.end() | |
232 |
|
232 | |||
233 | @command('perfdirstatewrite', formatteropts) |
|
233 | @command('perfdirstatewrite', formatteropts) | |
234 | def perfdirstatewrite(ui, repo, **opts): |
|
234 | def perfdirstatewrite(ui, repo, **opts): | |
235 | timer, fm = gettimer(ui, opts) |
|
235 | timer, fm = gettimer(ui, opts) | |
236 | ds = repo.dirstate |
|
236 | ds = repo.dirstate | |
237 | "a" in ds |
|
237 | "a" in ds | |
238 | def d(): |
|
238 | def d(): | |
239 | ds._dirty = True |
|
239 | ds._dirty = True | |
240 | ds.write(repo.currenttransaction()) |
|
240 | ds.write(repo.currenttransaction()) | |
241 | timer(d) |
|
241 | timer(d) | |
242 | fm.end() |
|
242 | fm.end() | |
243 |
|
243 | |||
244 | @command('perfmergecalculate', |
|
244 | @command('perfmergecalculate', | |
245 | [('r', 'rev', '.', 'rev to merge against')] + formatteropts) |
|
245 | [('r', 'rev', '.', 'rev to merge against')] + formatteropts) | |
246 | def perfmergecalculate(ui, repo, rev, **opts): |
|
246 | def perfmergecalculate(ui, repo, rev, **opts): | |
247 | timer, fm = gettimer(ui, opts) |
|
247 | timer, fm = gettimer(ui, opts) | |
248 | wctx = repo[None] |
|
248 | wctx = repo[None] | |
249 | rctx = scmutil.revsingle(repo, rev, rev) |
|
249 | rctx = scmutil.revsingle(repo, rev, rev) | |
250 | ancestor = wctx.ancestor(rctx) |
|
250 | ancestor = wctx.ancestor(rctx) | |
251 | # we don't want working dir files to be stat'd in the benchmark, so prime |
|
251 | # we don't want working dir files to be stat'd in the benchmark, so prime | |
252 | # that cache |
|
252 | # that cache | |
253 | wctx.dirty() |
|
253 | wctx.dirty() | |
254 | def d(): |
|
254 | def d(): | |
255 | # acceptremote is True because we don't want prompts in the middle of |
|
255 | # acceptremote is True because we don't want prompts in the middle of | |
256 | # our benchmark |
|
256 | # our benchmark | |
257 | merge.calculateupdates(repo, wctx, rctx, [ancestor], False, False, |
|
257 | merge.calculateupdates(repo, wctx, rctx, [ancestor], False, False, | |
258 | acceptremote=True, followcopies=True) |
|
258 | acceptremote=True, followcopies=True) | |
259 | timer(d) |
|
259 | timer(d) | |
260 | fm.end() |
|
260 | fm.end() | |
261 |
|
261 | |||
262 | @command('perfpathcopies', [], "REV REV") |
|
262 | @command('perfpathcopies', [], "REV REV") | |
263 | def perfpathcopies(ui, repo, rev1, rev2, **opts): |
|
263 | def perfpathcopies(ui, repo, rev1, rev2, **opts): | |
264 | timer, fm = gettimer(ui, opts) |
|
264 | timer, fm = gettimer(ui, opts) | |
265 | ctx1 = scmutil.revsingle(repo, rev1, rev1) |
|
265 | ctx1 = scmutil.revsingle(repo, rev1, rev1) | |
266 | ctx2 = scmutil.revsingle(repo, rev2, rev2) |
|
266 | ctx2 = scmutil.revsingle(repo, rev2, rev2) | |
267 | def d(): |
|
267 | def d(): | |
268 | copies.pathcopies(ctx1, ctx2) |
|
268 | copies.pathcopies(ctx1, ctx2) | |
269 | timer(d) |
|
269 | timer(d) | |
270 | fm.end() |
|
270 | fm.end() | |
271 |
|
271 | |||
272 | @command('perfmanifest', [], 'REV') |
|
272 | @command('perfmanifest', [], 'REV') | |
273 | def perfmanifest(ui, repo, rev, **opts): |
|
273 | def perfmanifest(ui, repo, rev, **opts): | |
274 | timer, fm = gettimer(ui, opts) |
|
274 | timer, fm = gettimer(ui, opts) | |
275 | ctx = scmutil.revsingle(repo, rev, rev) |
|
275 | ctx = scmutil.revsingle(repo, rev, rev) | |
276 | t = ctx.manifestnode() |
|
276 | t = ctx.manifestnode() | |
277 | def d(): |
|
277 | def d(): | |
278 | repo.manifest.clearcaches() |
|
278 | repo.manifest.clearcaches() | |
279 | repo.manifest.read(t) |
|
279 | repo.manifest.read(t) | |
280 | timer(d) |
|
280 | timer(d) | |
281 | fm.end() |
|
281 | fm.end() | |
282 |
|
282 | |||
283 | @command('perfchangeset', formatteropts) |
|
283 | @command('perfchangeset', formatteropts) | |
284 | def perfchangeset(ui, repo, rev, **opts): |
|
284 | def perfchangeset(ui, repo, rev, **opts): | |
285 | timer, fm = gettimer(ui, opts) |
|
285 | timer, fm = gettimer(ui, opts) | |
286 | n = repo[rev].node() |
|
286 | n = repo[rev].node() | |
287 | def d(): |
|
287 | def d(): | |
288 | repo.changelog.read(n) |
|
288 | repo.changelog.read(n) | |
289 | #repo.changelog._cache = None |
|
289 | #repo.changelog._cache = None | |
290 | timer(d) |
|
290 | timer(d) | |
291 | fm.end() |
|
291 | fm.end() | |
292 |
|
292 | |||
293 | @command('perfindex', formatteropts) |
|
293 | @command('perfindex', formatteropts) | |
294 | def perfindex(ui, repo, **opts): |
|
294 | def perfindex(ui, repo, **opts): | |
295 | import mercurial.revlog |
|
295 | import mercurial.revlog | |
296 | timer, fm = gettimer(ui, opts) |
|
296 | timer, fm = gettimer(ui, opts) | |
297 | mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg |
|
297 | mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg | |
298 | n = repo["tip"].node() |
|
298 | n = repo["tip"].node() | |
299 | def d(): |
|
299 | def d(): | |
300 | cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") |
|
300 | cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") | |
301 | cl.rev(n) |
|
301 | cl.rev(n) | |
302 | timer(d) |
|
302 | timer(d) | |
303 | fm.end() |
|
303 | fm.end() | |
304 |
|
304 | |||
305 | @command('perfstartup', formatteropts) |
|
305 | @command('perfstartup', formatteropts) | |
306 | def perfstartup(ui, repo, **opts): |
|
306 | def perfstartup(ui, repo, **opts): | |
307 | timer, fm = gettimer(ui, opts) |
|
307 | timer, fm = gettimer(ui, opts) | |
308 | cmd = sys.argv[0] |
|
308 | cmd = sys.argv[0] | |
309 | def d(): |
|
309 | def d(): | |
310 | if os.name != 'nt': |
|
310 | if os.name != 'nt': | |
311 | os.system("HGRCPATH= %s version -q > /dev/null" % cmd) |
|
311 | os.system("HGRCPATH= %s version -q > /dev/null" % cmd) | |
312 | else: |
|
312 | else: | |
313 | os.environ['HGRCPATH'] = '' |
|
313 | os.environ['HGRCPATH'] = '' | |
314 | os.system("%s version -q > NUL" % cmd) |
|
314 | os.system("%s version -q > NUL" % cmd) | |
315 | timer(d) |
|
315 | timer(d) | |
316 | fm.end() |
|
316 | fm.end() | |
317 |
|
317 | |||
318 | @command('perfparents', formatteropts) |
|
318 | @command('perfparents', formatteropts) | |
319 | def perfparents(ui, repo, **opts): |
|
319 | def perfparents(ui, repo, **opts): | |
320 | timer, fm = gettimer(ui, opts) |
|
320 | timer, fm = gettimer(ui, opts) | |
321 | # control the number of commits perfparents iterates over |
|
321 | # control the number of commits perfparents iterates over | |
322 | # experimental config: perf.parentscount |
|
322 | # experimental config: perf.parentscount | |
323 | count = ui.configint("perf", "parentscount", 1000) |
|
323 | count = ui.configint("perf", "parentscount", 1000) | |
324 | if len(repo.changelog) < count: |
|
324 | if len(repo.changelog) < count: | |
325 | raise error.Abort("repo needs %d commits for this test" % count) |
|
325 | raise error.Abort("repo needs %d commits for this test" % count) | |
326 | repo = repo.unfiltered() |
|
326 | repo = repo.unfiltered() | |
327 | nl = [repo.changelog.node(i) for i in xrange(count)] |
|
327 | nl = [repo.changelog.node(i) for i in xrange(count)] | |
328 | def d(): |
|
328 | def d(): | |
329 | for n in nl: |
|
329 | for n in nl: | |
330 | repo.changelog.parents(n) |
|
330 | repo.changelog.parents(n) | |
331 | timer(d) |
|
331 | timer(d) | |
332 | fm.end() |
|
332 | fm.end() | |
333 |
|
333 | |||
334 | @command('perfctxfiles', formatteropts) |
|
334 | @command('perfctxfiles', formatteropts) | |
335 | def perfctxfiles(ui, repo, x, **opts): |
|
335 | def perfctxfiles(ui, repo, x, **opts): | |
336 | x = int(x) |
|
336 | x = int(x) | |
337 | timer, fm = gettimer(ui, opts) |
|
337 | timer, fm = gettimer(ui, opts) | |
338 | def d(): |
|
338 | def d(): | |
339 | len(repo[x].files()) |
|
339 | len(repo[x].files()) | |
340 | timer(d) |
|
340 | timer(d) | |
341 | fm.end() |
|
341 | fm.end() | |
342 |
|
342 | |||
343 | @command('perfrawfiles', formatteropts) |
|
343 | @command('perfrawfiles', formatteropts) | |
344 | def perfrawfiles(ui, repo, x, **opts): |
|
344 | def perfrawfiles(ui, repo, x, **opts): | |
345 | x = int(x) |
|
345 | x = int(x) | |
346 | timer, fm = gettimer(ui, opts) |
|
346 | timer, fm = gettimer(ui, opts) | |
347 | cl = repo.changelog |
|
347 | cl = repo.changelog | |
348 | def d(): |
|
348 | def d(): | |
349 | len(cl.read(x)[3]) |
|
349 | len(cl.read(x)[3]) | |
350 | timer(d) |
|
350 | timer(d) | |
351 | fm.end() |
|
351 | fm.end() | |
352 |
|
352 | |||
353 | @command('perflookup', formatteropts) |
|
353 | @command('perflookup', formatteropts) | |
354 | def perflookup(ui, repo, rev, **opts): |
|
354 | def perflookup(ui, repo, rev, **opts): | |
355 | timer, fm = gettimer(ui, opts) |
|
355 | timer, fm = gettimer(ui, opts) | |
356 | timer(lambda: len(repo.lookup(rev))) |
|
356 | timer(lambda: len(repo.lookup(rev))) | |
357 | fm.end() |
|
357 | fm.end() | |
358 |
|
358 | |||
359 | @command('perfrevrange', formatteropts) |
|
359 | @command('perfrevrange', formatteropts) | |
360 | def perfrevrange(ui, repo, *specs, **opts): |
|
360 | def perfrevrange(ui, repo, *specs, **opts): | |
361 | timer, fm = gettimer(ui, opts) |
|
361 | timer, fm = gettimer(ui, opts) | |
362 | revrange = scmutil.revrange |
|
362 | revrange = scmutil.revrange | |
363 | timer(lambda: len(revrange(repo, specs))) |
|
363 | timer(lambda: len(revrange(repo, specs))) | |
364 | fm.end() |
|
364 | fm.end() | |
365 |
|
365 | |||
366 | @command('perfnodelookup', formatteropts) |
|
366 | @command('perfnodelookup', formatteropts) | |
367 | def perfnodelookup(ui, repo, rev, **opts): |
|
367 | def perfnodelookup(ui, repo, rev, **opts): | |
368 | timer, fm = gettimer(ui, opts) |
|
368 | timer, fm = gettimer(ui, opts) | |
369 | import mercurial.revlog |
|
369 | import mercurial.revlog | |
370 | mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg |
|
370 | mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg | |
371 | n = repo[rev].node() |
|
371 | n = repo[rev].node() | |
372 | cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") |
|
372 | cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") | |
373 | def d(): |
|
373 | def d(): | |
374 | cl.rev(n) |
|
374 | cl.rev(n) | |
375 | clearcaches(cl) |
|
375 | clearcaches(cl) | |
376 | timer(d) |
|
376 | timer(d) | |
377 | fm.end() |
|
377 | fm.end() | |
378 |
|
378 | |||
379 | @command('perflog', |
|
379 | @command('perflog', | |
380 | [('', 'rename', False, 'ask log to follow renames')] + formatteropts) |
|
380 | [('', 'rename', False, 'ask log to follow renames')] + formatteropts) | |
381 | def perflog(ui, repo, rev=None, **opts): |
|
381 | def perflog(ui, repo, rev=None, **opts): | |
382 | if rev is None: |
|
382 | if rev is None: | |
383 | rev=[] |
|
383 | rev=[] | |
384 | timer, fm = gettimer(ui, opts) |
|
384 | timer, fm = gettimer(ui, opts) | |
385 | ui.pushbuffer() |
|
385 | ui.pushbuffer() | |
386 | timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', |
|
386 | timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', | |
387 | copies=opts.get('rename'))) |
|
387 | copies=opts.get('rename'))) | |
388 | ui.popbuffer() |
|
388 | ui.popbuffer() | |
389 | fm.end() |
|
389 | fm.end() | |
390 |
|
390 | |||
391 | @command('perfmoonwalk', formatteropts) |
|
391 | @command('perfmoonwalk', formatteropts) | |
392 | def perfmoonwalk(ui, repo, **opts): |
|
392 | def perfmoonwalk(ui, repo, **opts): | |
393 | """benchmark walking the changelog backwards |
|
393 | """benchmark walking the changelog backwards | |
394 |
|
394 | |||
395 | This also loads the changelog data for each revision in the changelog. |
|
395 | This also loads the changelog data for each revision in the changelog. | |
396 | """ |
|
396 | """ | |
397 | timer, fm = gettimer(ui, opts) |
|
397 | timer, fm = gettimer(ui, opts) | |
398 | def moonwalk(): |
|
398 | def moonwalk(): | |
399 | for i in xrange(len(repo), -1, -1): |
|
399 | for i in xrange(len(repo), -1, -1): | |
400 | ctx = repo[i] |
|
400 | ctx = repo[i] | |
401 | ctx.branch() # read changelog data (in addition to the index) |
|
401 | ctx.branch() # read changelog data (in addition to the index) | |
402 | timer(moonwalk) |
|
402 | timer(moonwalk) | |
403 | fm.end() |
|
403 | fm.end() | |
404 |
|
404 | |||
405 | @command('perftemplating', formatteropts) |
|
405 | @command('perftemplating', formatteropts) | |
406 | def perftemplating(ui, repo, rev=None, **opts): |
|
406 | def perftemplating(ui, repo, rev=None, **opts): | |
407 | if rev is None: |
|
407 | if rev is None: | |
408 | rev=[] |
|
408 | rev=[] | |
409 | timer, fm = gettimer(ui, opts) |
|
409 | timer, fm = gettimer(ui, opts) | |
410 | ui.pushbuffer() |
|
410 | ui.pushbuffer() | |
411 | timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', |
|
411 | timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', | |
412 | template='{date|shortdate} [{rev}:{node|short}]' |
|
412 | template='{date|shortdate} [{rev}:{node|short}]' | |
413 | ' {author|person}: {desc|firstline}\n')) |
|
413 | ' {author|person}: {desc|firstline}\n')) | |
414 | ui.popbuffer() |
|
414 | ui.popbuffer() | |
415 | fm.end() |
|
415 | fm.end() | |
416 |
|
416 | |||
417 | @command('perfcca', formatteropts) |
|
417 | @command('perfcca', formatteropts) | |
418 | def perfcca(ui, repo, **opts): |
|
418 | def perfcca(ui, repo, **opts): | |
419 | timer, fm = gettimer(ui, opts) |
|
419 | timer, fm = gettimer(ui, opts) | |
420 | timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) |
|
420 | timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) | |
421 | fm.end() |
|
421 | fm.end() | |
422 |
|
422 | |||
423 | @command('perffncacheload', formatteropts) |
|
423 | @command('perffncacheload', formatteropts) | |
424 | def perffncacheload(ui, repo, **opts): |
|
424 | def perffncacheload(ui, repo, **opts): | |
425 | timer, fm = gettimer(ui, opts) |
|
425 | timer, fm = gettimer(ui, opts) | |
426 | s = repo.store |
|
426 | s = repo.store | |
427 | def d(): |
|
427 | def d(): | |
428 | s.fncache._load() |
|
428 | s.fncache._load() | |
429 | timer(d) |
|
429 | timer(d) | |
430 | fm.end() |
|
430 | fm.end() | |
431 |
|
431 | |||
432 | @command('perffncachewrite', formatteropts) |
|
432 | @command('perffncachewrite', formatteropts) | |
433 | def perffncachewrite(ui, repo, **opts): |
|
433 | def perffncachewrite(ui, repo, **opts): | |
434 | timer, fm = gettimer(ui, opts) |
|
434 | timer, fm = gettimer(ui, opts) | |
435 | s = repo.store |
|
435 | s = repo.store | |
436 | s.fncache._load() |
|
436 | s.fncache._load() | |
437 | lock = repo.lock() |
|
437 | lock = repo.lock() | |
438 | tr = repo.transaction('perffncachewrite') |
|
438 | tr = repo.transaction('perffncachewrite') | |
439 | def d(): |
|
439 | def d(): | |
440 | s.fncache._dirty = True |
|
440 | s.fncache._dirty = True | |
441 | s.fncache.write(tr) |
|
441 | s.fncache.write(tr) | |
442 | timer(d) |
|
442 | timer(d) | |
443 | lock.release() |
|
443 | lock.release() | |
444 | tr.close() |
|
444 | tr.close() | |
445 | fm.end() |
|
445 | fm.end() | |
446 |
|
446 | |||
447 | @command('perffncacheencode', formatteropts) |
|
447 | @command('perffncacheencode', formatteropts) | |
448 | def perffncacheencode(ui, repo, **opts): |
|
448 | def perffncacheencode(ui, repo, **opts): | |
449 | timer, fm = gettimer(ui, opts) |
|
449 | timer, fm = gettimer(ui, opts) | |
450 | s = repo.store |
|
450 | s = repo.store | |
451 | s.fncache._load() |
|
451 | s.fncache._load() | |
452 | def d(): |
|
452 | def d(): | |
453 | for p in s.fncache.entries: |
|
453 | for p in s.fncache.entries: | |
454 | s.encode(p) |
|
454 | s.encode(p) | |
455 | timer(d) |
|
455 | timer(d) | |
456 | fm.end() |
|
456 | fm.end() | |
457 |
|
457 | |||
458 | @command('perfdiffwd', formatteropts) |
|
458 | @command('perfdiffwd', formatteropts) | |
459 | def perfdiffwd(ui, repo, **opts): |
|
459 | def perfdiffwd(ui, repo, **opts): | |
460 | """Profile diff of working directory changes""" |
|
460 | """Profile diff of working directory changes""" | |
461 | timer, fm = gettimer(ui, opts) |
|
461 | timer, fm = gettimer(ui, opts) | |
462 | options = { |
|
462 | options = { | |
463 | 'w': 'ignore_all_space', |
|
463 | 'w': 'ignore_all_space', | |
464 | 'b': 'ignore_space_change', |
|
464 | 'b': 'ignore_space_change', | |
465 | 'B': 'ignore_blank_lines', |
|
465 | 'B': 'ignore_blank_lines', | |
466 | } |
|
466 | } | |
467 |
|
467 | |||
468 | for diffopt in ('', 'w', 'b', 'B', 'wB'): |
|
468 | for diffopt in ('', 'w', 'b', 'B', 'wB'): | |
469 | opts = dict((options[c], '1') for c in diffopt) |
|
469 | opts = dict((options[c], '1') for c in diffopt) | |
470 | def d(): |
|
470 | def d(): | |
471 | ui.pushbuffer() |
|
471 | ui.pushbuffer() | |
472 | commands.diff(ui, repo, **opts) |
|
472 | commands.diff(ui, repo, **opts) | |
473 | ui.popbuffer() |
|
473 | ui.popbuffer() | |
474 | title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none') |
|
474 | title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none') | |
475 | timer(d, title) |
|
475 | timer(d, title) | |
476 | fm.end() |
|
476 | fm.end() | |
477 |
|
477 | |||
478 | @command('perfrevlog', revlogopts + formatteropts + |
|
478 | @command('perfrevlog', revlogopts + formatteropts + | |
479 | [('d', 'dist', 100, 'distance between the revisions'), |
|
479 | [('d', 'dist', 100, 'distance between the revisions'), | |
480 | ('s', 'startrev', 0, 'revision to start reading at')], |
|
480 | ('s', 'startrev', 0, 'revision to start reading at')], | |
481 | '-c|-m|FILE') |
|
481 | '-c|-m|FILE') | |
482 | def perfrevlog(ui, repo, file_=None, startrev=0, **opts): |
|
482 | def perfrevlog(ui, repo, file_=None, startrev=0, **opts): | |
483 | """Benchmark reading a series of revisions from a revlog. |
|
483 | """Benchmark reading a series of revisions from a revlog. | |
484 |
|
484 | |||
485 | By default, we read every ``-d/--dist`` revision from 0 to tip of |
|
485 | By default, we read every ``-d/--dist`` revision from 0 to tip of | |
486 | the specified revlog. |
|
486 | the specified revlog. | |
487 |
|
487 | |||
488 | The start revision can be defined via ``-s/--startrev``. |
|
488 | The start revision can be defined via ``-s/--startrev``. | |
489 | """ |
|
489 | """ | |
490 | timer, fm = gettimer(ui, opts) |
|
490 | timer, fm = gettimer(ui, opts) | |
491 | dist = opts['dist'] |
|
491 | dist = opts['dist'] | |
492 | _len = getlen(ui) |
|
492 | _len = getlen(ui) | |
493 | def d(): |
|
493 | def d(): | |
494 | r = cmdutil.openrevlog(repo, 'perfrevlog', file_, opts) |
|
494 | r = cmdutil.openrevlog(repo, 'perfrevlog', file_, opts) | |
495 | for x in xrange(startrev, _len(r), dist): |
|
495 | for x in xrange(startrev, _len(r), dist): | |
496 | r.revision(r.node(x)) |
|
496 | r.revision(r.node(x)) | |
497 |
|
497 | |||
498 | timer(d) |
|
498 | timer(d) | |
499 | fm.end() |
|
499 | fm.end() | |
500 |
|
500 | |||
501 | @command('perfrevlogrevision', revlogopts + formatteropts + |
|
501 | @command('perfrevlogrevision', revlogopts + formatteropts + | |
502 | [('', 'cache', False, 'use caches instead of clearing')], |
|
502 | [('', 'cache', False, 'use caches instead of clearing')], | |
503 | '-c|-m|FILE REV') |
|
503 | '-c|-m|FILE REV') | |
504 | def perfrevlogrevision(ui, repo, file_, rev=None, cache=None, **opts): |
|
504 | def perfrevlogrevision(ui, repo, file_, rev=None, cache=None, **opts): | |
505 | """Benchmark obtaining a revlog revision. |
|
505 | """Benchmark obtaining a revlog revision. | |
506 |
|
506 | |||
507 | Obtaining a revlog revision consists of roughly the following steps: |
|
507 | Obtaining a revlog revision consists of roughly the following steps: | |
508 |
|
508 | |||
509 | 1. Compute the delta chain |
|
509 | 1. Compute the delta chain | |
510 | 2. Obtain the raw chunks for that delta chain |
|
510 | 2. Obtain the raw chunks for that delta chain | |
511 | 3. Decompress each raw chunk |
|
511 | 3. Decompress each raw chunk | |
512 | 4. Apply binary patches to obtain fulltext |
|
512 | 4. Apply binary patches to obtain fulltext | |
513 | 5. Verify hash of fulltext |
|
513 | 5. Verify hash of fulltext | |
514 |
|
514 | |||
515 | This command measures the time spent in each of these phases. |
|
515 | This command measures the time spent in each of these phases. | |
516 | """ |
|
516 | """ | |
517 | if opts.get('changelog') or opts.get('manifest'): |
|
517 | if opts.get('changelog') or opts.get('manifest'): | |
518 | file_, rev = None, file_ |
|
518 | file_, rev = None, file_ | |
519 | elif rev is None: |
|
519 | elif rev is None: | |
520 | raise error.CommandError('perfrevlogrevision', 'invalid arguments') |
|
520 | raise error.CommandError('perfrevlogrevision', 'invalid arguments') | |
521 |
|
521 | |||
522 | r = cmdutil.openrevlog(repo, 'perfrevlogrevision', file_, opts) |
|
522 | r = cmdutil.openrevlog(repo, 'perfrevlogrevision', file_, opts) | |
523 | node = r.lookup(rev) |
|
523 | node = r.lookup(rev) | |
524 | rev = r.rev(node) |
|
524 | rev = r.rev(node) | |
525 |
|
525 | |||
526 | def dodeltachain(rev): |
|
526 | def dodeltachain(rev): | |
527 | if not cache: |
|
527 | if not cache: | |
528 | r.clearcaches() |
|
528 | r.clearcaches() | |
529 | r._deltachain(rev) |
|
529 | r._deltachain(rev) | |
530 |
|
530 | |||
531 | def doread(chain): |
|
531 | def doread(chain): | |
532 | if not cache: |
|
532 | if not cache: | |
533 | r.clearcaches() |
|
533 | r.clearcaches() | |
534 | r._chunkraw(chain[0], chain[-1]) |
|
534 | r._chunkraw(chain[0], chain[-1]) | |
535 |
|
535 | |||
536 | def dodecompress(data, chain): |
|
536 | def dodecompress(data, chain): | |
537 | if not cache: |
|
537 | if not cache: | |
538 | r.clearcaches() |
|
538 | r.clearcaches() | |
539 |
|
539 | |||
540 | start = r.start |
|
540 | start = r.start | |
541 | length = r.length |
|
541 | length = r.length | |
542 | inline = r._inline |
|
542 | inline = r._inline | |
543 | iosize = r._io.size |
|
543 | iosize = r._io.size | |
544 | buffer = util.buffer |
|
544 | buffer = util.buffer | |
545 | offset = start(chain[0]) |
|
545 | offset = start(chain[0]) | |
546 |
|
546 | |||
547 | for rev in chain: |
|
547 | for rev in chain: | |
548 | chunkstart = start(rev) |
|
548 | chunkstart = start(rev) | |
549 | if inline: |
|
549 | if inline: | |
550 | chunkstart += (rev + 1) * iosize |
|
550 | chunkstart += (rev + 1) * iosize | |
551 | chunklength = length(rev) |
|
551 | chunklength = length(rev) | |
552 | b = buffer(data, chunkstart - offset, chunklength) |
|
552 | b = buffer(data, chunkstart - offset, chunklength) | |
553 | revlog.decompress(b) |
|
553 | revlog.decompress(b) | |
554 |
|
554 | |||
555 | def dopatch(text, bins): |
|
555 | def dopatch(text, bins): | |
556 | if not cache: |
|
556 | if not cache: | |
557 | r.clearcaches() |
|
557 | r.clearcaches() | |
558 | mdiff.patches(text, bins) |
|
558 | mdiff.patches(text, bins) | |
559 |
|
559 | |||
560 | def dohash(text): |
|
560 | def dohash(text): | |
561 | if not cache: |
|
561 | if not cache: | |
562 | r.clearcaches() |
|
562 | r.clearcaches() | |
563 | r._checkhash(text, node, rev) |
|
563 | r._checkhash(text, node, rev) | |
564 |
|
564 | |||
565 | def dorevision(): |
|
565 | def dorevision(): | |
566 | if not cache: |
|
566 | if not cache: | |
567 | r.clearcaches() |
|
567 | r.clearcaches() | |
568 | r.revision(node) |
|
568 | r.revision(node) | |
569 |
|
569 | |||
570 | chain = r._deltachain(rev)[0] |
|
570 | chain = r._deltachain(rev)[0] | |
571 | data = r._chunkraw(chain[0], chain[-1]) |
|
571 | data = r._chunkraw(chain[0], chain[-1])[1] | |
572 | bins = r._chunks(chain) |
|
572 | bins = r._chunks(chain) | |
573 | text = str(bins[0]) |
|
573 | text = str(bins[0]) | |
574 | bins = bins[1:] |
|
574 | bins = bins[1:] | |
575 | text = mdiff.patches(text, bins) |
|
575 | text = mdiff.patches(text, bins) | |
576 |
|
576 | |||
577 | benches = [ |
|
577 | benches = [ | |
578 | (lambda: dorevision(), 'full'), |
|
578 | (lambda: dorevision(), 'full'), | |
579 | (lambda: dodeltachain(rev), 'deltachain'), |
|
579 | (lambda: dodeltachain(rev), 'deltachain'), | |
580 | (lambda: doread(chain), 'read'), |
|
580 | (lambda: doread(chain), 'read'), | |
581 | (lambda: dodecompress(data, chain), 'decompress'), |
|
581 | (lambda: dodecompress(data, chain), 'decompress'), | |
582 | (lambda: dopatch(text, bins), 'patch'), |
|
582 | (lambda: dopatch(text, bins), 'patch'), | |
583 | (lambda: dohash(text), 'hash'), |
|
583 | (lambda: dohash(text), 'hash'), | |
584 | ] |
|
584 | ] | |
585 |
|
585 | |||
586 | for fn, title in benches: |
|
586 | for fn, title in benches: | |
587 | timer, fm = gettimer(ui, opts) |
|
587 | timer, fm = gettimer(ui, opts) | |
588 | timer(fn, title=title) |
|
588 | timer(fn, title=title) | |
589 | fm.end() |
|
589 | fm.end() | |
590 |
|
590 | |||
591 | @command('perfrevset', |
|
591 | @command('perfrevset', | |
592 | [('C', 'clear', False, 'clear volatile cache between each call.'), |
|
592 | [('C', 'clear', False, 'clear volatile cache between each call.'), | |
593 | ('', 'contexts', False, 'obtain changectx for each revision')] |
|
593 | ('', 'contexts', False, 'obtain changectx for each revision')] | |
594 | + formatteropts, "REVSET") |
|
594 | + formatteropts, "REVSET") | |
595 | def perfrevset(ui, repo, expr, clear=False, contexts=False, **opts): |
|
595 | def perfrevset(ui, repo, expr, clear=False, contexts=False, **opts): | |
596 | """benchmark the execution time of a revset |
|
596 | """benchmark the execution time of a revset | |
597 |
|
597 | |||
598 | Use the --clean option if need to evaluate the impact of build volatile |
|
598 | Use the --clean option if need to evaluate the impact of build volatile | |
599 | revisions set cache on the revset execution. Volatile cache hold filtered |
|
599 | revisions set cache on the revset execution. Volatile cache hold filtered | |
600 | and obsolete related cache.""" |
|
600 | and obsolete related cache.""" | |
601 | timer, fm = gettimer(ui, opts) |
|
601 | timer, fm = gettimer(ui, opts) | |
602 | def d(): |
|
602 | def d(): | |
603 | if clear: |
|
603 | if clear: | |
604 | repo.invalidatevolatilesets() |
|
604 | repo.invalidatevolatilesets() | |
605 | if contexts: |
|
605 | if contexts: | |
606 | for ctx in repo.set(expr): pass |
|
606 | for ctx in repo.set(expr): pass | |
607 | else: |
|
607 | else: | |
608 | for r in repo.revs(expr): pass |
|
608 | for r in repo.revs(expr): pass | |
609 | timer(d) |
|
609 | timer(d) | |
610 | fm.end() |
|
610 | fm.end() | |
611 |
|
611 | |||
612 | @command('perfvolatilesets', formatteropts) |
|
612 | @command('perfvolatilesets', formatteropts) | |
613 | def perfvolatilesets(ui, repo, *names, **opts): |
|
613 | def perfvolatilesets(ui, repo, *names, **opts): | |
614 | """benchmark the computation of various volatile set |
|
614 | """benchmark the computation of various volatile set | |
615 |
|
615 | |||
616 | Volatile set computes element related to filtering and obsolescence.""" |
|
616 | Volatile set computes element related to filtering and obsolescence.""" | |
617 | timer, fm = gettimer(ui, opts) |
|
617 | timer, fm = gettimer(ui, opts) | |
618 | repo = repo.unfiltered() |
|
618 | repo = repo.unfiltered() | |
619 |
|
619 | |||
620 | def getobs(name): |
|
620 | def getobs(name): | |
621 | def d(): |
|
621 | def d(): | |
622 | repo.invalidatevolatilesets() |
|
622 | repo.invalidatevolatilesets() | |
623 | obsolete.getrevs(repo, name) |
|
623 | obsolete.getrevs(repo, name) | |
624 | return d |
|
624 | return d | |
625 |
|
625 | |||
626 | allobs = sorted(obsolete.cachefuncs) |
|
626 | allobs = sorted(obsolete.cachefuncs) | |
627 | if names: |
|
627 | if names: | |
628 | allobs = [n for n in allobs if n in names] |
|
628 | allobs = [n for n in allobs if n in names] | |
629 |
|
629 | |||
630 | for name in allobs: |
|
630 | for name in allobs: | |
631 | timer(getobs(name), title=name) |
|
631 | timer(getobs(name), title=name) | |
632 |
|
632 | |||
633 | def getfiltered(name): |
|
633 | def getfiltered(name): | |
634 | def d(): |
|
634 | def d(): | |
635 | repo.invalidatevolatilesets() |
|
635 | repo.invalidatevolatilesets() | |
636 | repoview.filterrevs(repo, name) |
|
636 | repoview.filterrevs(repo, name) | |
637 | return d |
|
637 | return d | |
638 |
|
638 | |||
639 | allfilter = sorted(repoview.filtertable) |
|
639 | allfilter = sorted(repoview.filtertable) | |
640 | if names: |
|
640 | if names: | |
641 | allfilter = [n for n in allfilter if n in names] |
|
641 | allfilter = [n for n in allfilter if n in names] | |
642 |
|
642 | |||
643 | for name in allfilter: |
|
643 | for name in allfilter: | |
644 | timer(getfiltered(name), title=name) |
|
644 | timer(getfiltered(name), title=name) | |
645 | fm.end() |
|
645 | fm.end() | |
646 |
|
646 | |||
647 | @command('perfbranchmap', |
|
647 | @command('perfbranchmap', | |
648 | [('f', 'full', False, |
|
648 | [('f', 'full', False, | |
649 | 'Includes build time of subset'), |
|
649 | 'Includes build time of subset'), | |
650 | ] + formatteropts) |
|
650 | ] + formatteropts) | |
651 | def perfbranchmap(ui, repo, full=False, **opts): |
|
651 | def perfbranchmap(ui, repo, full=False, **opts): | |
652 | """benchmark the update of a branchmap |
|
652 | """benchmark the update of a branchmap | |
653 |
|
653 | |||
654 | This benchmarks the full repo.branchmap() call with read and write disabled |
|
654 | This benchmarks the full repo.branchmap() call with read and write disabled | |
655 | """ |
|
655 | """ | |
656 | timer, fm = gettimer(ui, opts) |
|
656 | timer, fm = gettimer(ui, opts) | |
657 | def getbranchmap(filtername): |
|
657 | def getbranchmap(filtername): | |
658 | """generate a benchmark function for the filtername""" |
|
658 | """generate a benchmark function for the filtername""" | |
659 | if filtername is None: |
|
659 | if filtername is None: | |
660 | view = repo |
|
660 | view = repo | |
661 | else: |
|
661 | else: | |
662 | view = repo.filtered(filtername) |
|
662 | view = repo.filtered(filtername) | |
663 | def d(): |
|
663 | def d(): | |
664 | if full: |
|
664 | if full: | |
665 | view._branchcaches.clear() |
|
665 | view._branchcaches.clear() | |
666 | else: |
|
666 | else: | |
667 | view._branchcaches.pop(filtername, None) |
|
667 | view._branchcaches.pop(filtername, None) | |
668 | view.branchmap() |
|
668 | view.branchmap() | |
669 | return d |
|
669 | return d | |
670 | # add filter in smaller subset to bigger subset |
|
670 | # add filter in smaller subset to bigger subset | |
671 | possiblefilters = set(repoview.filtertable) |
|
671 | possiblefilters = set(repoview.filtertable) | |
672 | allfilters = [] |
|
672 | allfilters = [] | |
673 | while possiblefilters: |
|
673 | while possiblefilters: | |
674 | for name in possiblefilters: |
|
674 | for name in possiblefilters: | |
675 | subset = branchmap.subsettable.get(name) |
|
675 | subset = branchmap.subsettable.get(name) | |
676 | if subset not in possiblefilters: |
|
676 | if subset not in possiblefilters: | |
677 | break |
|
677 | break | |
678 | else: |
|
678 | else: | |
679 | assert False, 'subset cycle %s!' % possiblefilters |
|
679 | assert False, 'subset cycle %s!' % possiblefilters | |
680 | allfilters.append(name) |
|
680 | allfilters.append(name) | |
681 | possiblefilters.remove(name) |
|
681 | possiblefilters.remove(name) | |
682 |
|
682 | |||
683 | # warm the cache |
|
683 | # warm the cache | |
684 | if not full: |
|
684 | if not full: | |
685 | for name in allfilters: |
|
685 | for name in allfilters: | |
686 | repo.filtered(name).branchmap() |
|
686 | repo.filtered(name).branchmap() | |
687 | # add unfiltered |
|
687 | # add unfiltered | |
688 | allfilters.append(None) |
|
688 | allfilters.append(None) | |
689 | oldread = branchmap.read |
|
689 | oldread = branchmap.read | |
690 | oldwrite = branchmap.branchcache.write |
|
690 | oldwrite = branchmap.branchcache.write | |
691 | try: |
|
691 | try: | |
692 | branchmap.read = lambda repo: None |
|
692 | branchmap.read = lambda repo: None | |
693 | branchmap.write = lambda repo: None |
|
693 | branchmap.write = lambda repo: None | |
694 | for name in allfilters: |
|
694 | for name in allfilters: | |
695 | timer(getbranchmap(name), title=str(name)) |
|
695 | timer(getbranchmap(name), title=str(name)) | |
696 | finally: |
|
696 | finally: | |
697 | branchmap.read = oldread |
|
697 | branchmap.read = oldread | |
698 | branchmap.branchcache.write = oldwrite |
|
698 | branchmap.branchcache.write = oldwrite | |
699 | fm.end() |
|
699 | fm.end() | |
700 |
|
700 | |||
701 | @command('perfloadmarkers') |
|
701 | @command('perfloadmarkers') | |
702 | def perfloadmarkers(ui, repo): |
|
702 | def perfloadmarkers(ui, repo): | |
703 | """benchmark the time to parse the on-disk markers for a repo |
|
703 | """benchmark the time to parse the on-disk markers for a repo | |
704 |
|
704 | |||
705 | Result is the number of markers in the repo.""" |
|
705 | Result is the number of markers in the repo.""" | |
706 | timer, fm = gettimer(ui) |
|
706 | timer, fm = gettimer(ui) | |
707 | timer(lambda: len(obsolete.obsstore(repo.svfs))) |
|
707 | timer(lambda: len(obsolete.obsstore(repo.svfs))) | |
708 | fm.end() |
|
708 | fm.end() | |
709 |
|
709 | |||
710 | @command('perflrucachedict', formatteropts + |
|
710 | @command('perflrucachedict', formatteropts + | |
711 | [('', 'size', 4, 'size of cache'), |
|
711 | [('', 'size', 4, 'size of cache'), | |
712 | ('', 'gets', 10000, 'number of key lookups'), |
|
712 | ('', 'gets', 10000, 'number of key lookups'), | |
713 | ('', 'sets', 10000, 'number of key sets'), |
|
713 | ('', 'sets', 10000, 'number of key sets'), | |
714 | ('', 'mixed', 10000, 'number of mixed mode operations'), |
|
714 | ('', 'mixed', 10000, 'number of mixed mode operations'), | |
715 | ('', 'mixedgetfreq', 50, 'frequency of get vs set ops in mixed mode')], |
|
715 | ('', 'mixedgetfreq', 50, 'frequency of get vs set ops in mixed mode')], | |
716 | norepo=True) |
|
716 | norepo=True) | |
717 | def perflrucache(ui, size=4, gets=10000, sets=10000, mixed=10000, |
|
717 | def perflrucache(ui, size=4, gets=10000, sets=10000, mixed=10000, | |
718 | mixedgetfreq=50, **opts): |
|
718 | mixedgetfreq=50, **opts): | |
719 | def doinit(): |
|
719 | def doinit(): | |
720 | for i in xrange(10000): |
|
720 | for i in xrange(10000): | |
721 | util.lrucachedict(size) |
|
721 | util.lrucachedict(size) | |
722 |
|
722 | |||
723 | values = [] |
|
723 | values = [] | |
724 | for i in xrange(size): |
|
724 | for i in xrange(size): | |
725 | values.append(random.randint(0, sys.maxint)) |
|
725 | values.append(random.randint(0, sys.maxint)) | |
726 |
|
726 | |||
727 | # Get mode fills the cache and tests raw lookup performance with no |
|
727 | # Get mode fills the cache and tests raw lookup performance with no | |
728 | # eviction. |
|
728 | # eviction. | |
729 | getseq = [] |
|
729 | getseq = [] | |
730 | for i in xrange(gets): |
|
730 | for i in xrange(gets): | |
731 | getseq.append(random.choice(values)) |
|
731 | getseq.append(random.choice(values)) | |
732 |
|
732 | |||
733 | def dogets(): |
|
733 | def dogets(): | |
734 | d = util.lrucachedict(size) |
|
734 | d = util.lrucachedict(size) | |
735 | for v in values: |
|
735 | for v in values: | |
736 | d[v] = v |
|
736 | d[v] = v | |
737 | for key in getseq: |
|
737 | for key in getseq: | |
738 | value = d[key] |
|
738 | value = d[key] | |
739 | value # silence pyflakes warning |
|
739 | value # silence pyflakes warning | |
740 |
|
740 | |||
741 | # Set mode tests insertion speed with cache eviction. |
|
741 | # Set mode tests insertion speed with cache eviction. | |
742 | setseq = [] |
|
742 | setseq = [] | |
743 | for i in xrange(sets): |
|
743 | for i in xrange(sets): | |
744 | setseq.append(random.randint(0, sys.maxint)) |
|
744 | setseq.append(random.randint(0, sys.maxint)) | |
745 |
|
745 | |||
746 | def dosets(): |
|
746 | def dosets(): | |
747 | d = util.lrucachedict(size) |
|
747 | d = util.lrucachedict(size) | |
748 | for v in setseq: |
|
748 | for v in setseq: | |
749 | d[v] = v |
|
749 | d[v] = v | |
750 |
|
750 | |||
751 | # Mixed mode randomly performs gets and sets with eviction. |
|
751 | # Mixed mode randomly performs gets and sets with eviction. | |
752 | mixedops = [] |
|
752 | mixedops = [] | |
753 | for i in xrange(mixed): |
|
753 | for i in xrange(mixed): | |
754 | r = random.randint(0, 100) |
|
754 | r = random.randint(0, 100) | |
755 | if r < mixedgetfreq: |
|
755 | if r < mixedgetfreq: | |
756 | op = 0 |
|
756 | op = 0 | |
757 | else: |
|
757 | else: | |
758 | op = 1 |
|
758 | op = 1 | |
759 |
|
759 | |||
760 | mixedops.append((op, random.randint(0, size * 2))) |
|
760 | mixedops.append((op, random.randint(0, size * 2))) | |
761 |
|
761 | |||
762 | def domixed(): |
|
762 | def domixed(): | |
763 | d = util.lrucachedict(size) |
|
763 | d = util.lrucachedict(size) | |
764 |
|
764 | |||
765 | for op, v in mixedops: |
|
765 | for op, v in mixedops: | |
766 | if op == 0: |
|
766 | if op == 0: | |
767 | try: |
|
767 | try: | |
768 | d[v] |
|
768 | d[v] | |
769 | except KeyError: |
|
769 | except KeyError: | |
770 | pass |
|
770 | pass | |
771 | else: |
|
771 | else: | |
772 | d[v] = v |
|
772 | d[v] = v | |
773 |
|
773 | |||
774 | benches = [ |
|
774 | benches = [ | |
775 | (doinit, 'init'), |
|
775 | (doinit, 'init'), | |
776 | (dogets, 'gets'), |
|
776 | (dogets, 'gets'), | |
777 | (dosets, 'sets'), |
|
777 | (dosets, 'sets'), | |
778 | (domixed, 'mixed') |
|
778 | (domixed, 'mixed') | |
779 | ] |
|
779 | ] | |
780 |
|
780 | |||
781 | for fn, title in benches: |
|
781 | for fn, title in benches: | |
782 | timer, fm = gettimer(ui, opts) |
|
782 | timer, fm = gettimer(ui, opts) | |
783 | timer(fn, title=title) |
|
783 | timer(fn, title=title) | |
784 | fm.end() |
|
784 | fm.end() |
@@ -1,1786 +1,1790 b'' | |||||
1 | # revlog.py - storage back-end for mercurial |
|
1 | # revlog.py - storage back-end for mercurial | |
2 | # |
|
2 | # | |
3 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
|
3 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> | |
4 | # |
|
4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
|
6 | # GNU General Public License version 2 or any later version. | |
7 |
|
7 | |||
8 | """Storage back-end for Mercurial. |
|
8 | """Storage back-end for Mercurial. | |
9 |
|
9 | |||
10 | This provides efficient delta storage with O(1) retrieve and append |
|
10 | This provides efficient delta storage with O(1) retrieve and append | |
11 | and O(changes) merge between branches. |
|
11 | and O(changes) merge between branches. | |
12 | """ |
|
12 | """ | |
13 |
|
13 | |||
14 | from __future__ import absolute_import |
|
14 | from __future__ import absolute_import | |
15 |
|
15 | |||
16 | import collections |
|
16 | import collections | |
17 | import errno |
|
17 | import errno | |
18 | import os |
|
18 | import os | |
19 | import struct |
|
19 | import struct | |
20 | import zlib |
|
20 | import zlib | |
21 |
|
21 | |||
22 | # import stuff from node for others to import from revlog |
|
22 | # import stuff from node for others to import from revlog | |
23 | from .node import ( |
|
23 | from .node import ( | |
24 | bin, |
|
24 | bin, | |
25 | hex, |
|
25 | hex, | |
26 | nullid, |
|
26 | nullid, | |
27 | nullrev, |
|
27 | nullrev, | |
28 | ) |
|
28 | ) | |
29 | from .i18n import _ |
|
29 | from .i18n import _ | |
30 | from . import ( |
|
30 | from . import ( | |
31 | ancestor, |
|
31 | ancestor, | |
32 | error, |
|
32 | error, | |
33 | mdiff, |
|
33 | mdiff, | |
34 | parsers, |
|
34 | parsers, | |
35 | templatefilters, |
|
35 | templatefilters, | |
36 | util, |
|
36 | util, | |
37 | ) |
|
37 | ) | |
38 |
|
38 | |||
39 | _pack = struct.pack |
|
39 | _pack = struct.pack | |
40 | _unpack = struct.unpack |
|
40 | _unpack = struct.unpack | |
41 | _compress = zlib.compress |
|
41 | _compress = zlib.compress | |
42 | _decompress = zlib.decompress |
|
42 | _decompress = zlib.decompress | |
43 | _sha = util.sha1 |
|
43 | _sha = util.sha1 | |
44 |
|
44 | |||
45 | # revlog header flags |
|
45 | # revlog header flags | |
46 | REVLOGV0 = 0 |
|
46 | REVLOGV0 = 0 | |
47 | REVLOGNG = 1 |
|
47 | REVLOGNG = 1 | |
48 | REVLOGNGINLINEDATA = (1 << 16) |
|
48 | REVLOGNGINLINEDATA = (1 << 16) | |
49 | REVLOGGENERALDELTA = (1 << 17) |
|
49 | REVLOGGENERALDELTA = (1 << 17) | |
50 | REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
|
50 | REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA | |
51 | REVLOG_DEFAULT_FORMAT = REVLOGNG |
|
51 | REVLOG_DEFAULT_FORMAT = REVLOGNG | |
52 | REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
|
52 | REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS | |
53 | REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA |
|
53 | REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA | |
54 |
|
54 | |||
55 | # revlog index flags |
|
55 | # revlog index flags | |
56 | REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be verified |
|
56 | REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be verified | |
57 | REVIDX_DEFAULT_FLAGS = 0 |
|
57 | REVIDX_DEFAULT_FLAGS = 0 | |
58 | REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED |
|
58 | REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED | |
59 |
|
59 | |||
60 | # max size of revlog with inline data |
|
60 | # max size of revlog with inline data | |
61 | _maxinline = 131072 |
|
61 | _maxinline = 131072 | |
62 | _chunksize = 1048576 |
|
62 | _chunksize = 1048576 | |
63 |
|
63 | |||
64 | RevlogError = error.RevlogError |
|
64 | RevlogError = error.RevlogError | |
65 | LookupError = error.LookupError |
|
65 | LookupError = error.LookupError | |
66 | CensoredNodeError = error.CensoredNodeError |
|
66 | CensoredNodeError = error.CensoredNodeError | |
67 |
|
67 | |||
68 | def getoffset(q): |
|
68 | def getoffset(q): | |
69 | return int(q >> 16) |
|
69 | return int(q >> 16) | |
70 |
|
70 | |||
71 | def gettype(q): |
|
71 | def gettype(q): | |
72 | return int(q & 0xFFFF) |
|
72 | return int(q & 0xFFFF) | |
73 |
|
73 | |||
74 | def offset_type(offset, type): |
|
74 | def offset_type(offset, type): | |
75 | return long(long(offset) << 16 | type) |
|
75 | return long(long(offset) << 16 | type) | |
76 |
|
76 | |||
77 | _nullhash = _sha(nullid) |
|
77 | _nullhash = _sha(nullid) | |
78 |
|
78 | |||
79 | def hash(text, p1, p2): |
|
79 | def hash(text, p1, p2): | |
80 | """generate a hash from the given text and its parent hashes |
|
80 | """generate a hash from the given text and its parent hashes | |
81 |
|
81 | |||
82 | This hash combines both the current file contents and its history |
|
82 | This hash combines both the current file contents and its history | |
83 | in a manner that makes it easy to distinguish nodes with the same |
|
83 | in a manner that makes it easy to distinguish nodes with the same | |
84 | content in the revision graph. |
|
84 | content in the revision graph. | |
85 | """ |
|
85 | """ | |
86 | # As of now, if one of the parent node is null, p2 is null |
|
86 | # As of now, if one of the parent node is null, p2 is null | |
87 | if p2 == nullid: |
|
87 | if p2 == nullid: | |
88 | # deep copy of a hash is faster than creating one |
|
88 | # deep copy of a hash is faster than creating one | |
89 | s = _nullhash.copy() |
|
89 | s = _nullhash.copy() | |
90 | s.update(p1) |
|
90 | s.update(p1) | |
91 | else: |
|
91 | else: | |
92 | # none of the parent nodes are nullid |
|
92 | # none of the parent nodes are nullid | |
93 | l = [p1, p2] |
|
93 | l = [p1, p2] | |
94 | l.sort() |
|
94 | l.sort() | |
95 | s = _sha(l[0]) |
|
95 | s = _sha(l[0]) | |
96 | s.update(l[1]) |
|
96 | s.update(l[1]) | |
97 | s.update(text) |
|
97 | s.update(text) | |
98 | return s.digest() |
|
98 | return s.digest() | |
99 |
|
99 | |||
100 | def decompress(bin): |
|
100 | def decompress(bin): | |
101 | """ decompress the given input """ |
|
101 | """ decompress the given input """ | |
102 | if not bin: |
|
102 | if not bin: | |
103 | return bin |
|
103 | return bin | |
104 | t = bin[0] |
|
104 | t = bin[0] | |
105 | if t == '\0': |
|
105 | if t == '\0': | |
106 | return bin |
|
106 | return bin | |
107 | if t == 'x': |
|
107 | if t == 'x': | |
108 | try: |
|
108 | try: | |
109 | return _decompress(bin) |
|
109 | return _decompress(bin) | |
110 | except zlib.error as e: |
|
110 | except zlib.error as e: | |
111 | raise RevlogError(_("revlog decompress error: %s") % str(e)) |
|
111 | raise RevlogError(_("revlog decompress error: %s") % str(e)) | |
112 | if t == 'u': |
|
112 | if t == 'u': | |
113 | return util.buffer(bin, 1) |
|
113 | return util.buffer(bin, 1) | |
114 | raise RevlogError(_("unknown compression type %r") % t) |
|
114 | raise RevlogError(_("unknown compression type %r") % t) | |
115 |
|
115 | |||
116 | # index v0: |
|
116 | # index v0: | |
117 | # 4 bytes: offset |
|
117 | # 4 bytes: offset | |
118 | # 4 bytes: compressed length |
|
118 | # 4 bytes: compressed length | |
119 | # 4 bytes: base rev |
|
119 | # 4 bytes: base rev | |
120 | # 4 bytes: link rev |
|
120 | # 4 bytes: link rev | |
121 | # 20 bytes: parent 1 nodeid |
|
121 | # 20 bytes: parent 1 nodeid | |
122 | # 20 bytes: parent 2 nodeid |
|
122 | # 20 bytes: parent 2 nodeid | |
123 | # 20 bytes: nodeid |
|
123 | # 20 bytes: nodeid | |
124 | indexformatv0 = ">4l20s20s20s" |
|
124 | indexformatv0 = ">4l20s20s20s" | |
125 |
|
125 | |||
126 | class revlogoldio(object): |
|
126 | class revlogoldio(object): | |
127 | def __init__(self): |
|
127 | def __init__(self): | |
128 | self.size = struct.calcsize(indexformatv0) |
|
128 | self.size = struct.calcsize(indexformatv0) | |
129 |
|
129 | |||
130 | def parseindex(self, data, inline): |
|
130 | def parseindex(self, data, inline): | |
131 | s = self.size |
|
131 | s = self.size | |
132 | index = [] |
|
132 | index = [] | |
133 | nodemap = {nullid: nullrev} |
|
133 | nodemap = {nullid: nullrev} | |
134 | n = off = 0 |
|
134 | n = off = 0 | |
135 | l = len(data) |
|
135 | l = len(data) | |
136 | while off + s <= l: |
|
136 | while off + s <= l: | |
137 | cur = data[off:off + s] |
|
137 | cur = data[off:off + s] | |
138 | off += s |
|
138 | off += s | |
139 | e = _unpack(indexformatv0, cur) |
|
139 | e = _unpack(indexformatv0, cur) | |
140 | # transform to revlogv1 format |
|
140 | # transform to revlogv1 format | |
141 | e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
|
141 | e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], | |
142 | nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
|
142 | nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) | |
143 | index.append(e2) |
|
143 | index.append(e2) | |
144 | nodemap[e[6]] = n |
|
144 | nodemap[e[6]] = n | |
145 | n += 1 |
|
145 | n += 1 | |
146 |
|
146 | |||
147 | # add the magic null revision at -1 |
|
147 | # add the magic null revision at -1 | |
148 | index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
|
148 | index.append((0, 0, 0, -1, -1, -1, -1, nullid)) | |
149 |
|
149 | |||
150 | return index, nodemap, None |
|
150 | return index, nodemap, None | |
151 |
|
151 | |||
152 | def packentry(self, entry, node, version, rev): |
|
152 | def packentry(self, entry, node, version, rev): | |
153 | if gettype(entry[0]): |
|
153 | if gettype(entry[0]): | |
154 | raise RevlogError(_("index entry flags need RevlogNG")) |
|
154 | raise RevlogError(_("index entry flags need RevlogNG")) | |
155 | e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
|
155 | e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], | |
156 | node(entry[5]), node(entry[6]), entry[7]) |
|
156 | node(entry[5]), node(entry[6]), entry[7]) | |
157 | return _pack(indexformatv0, *e2) |
|
157 | return _pack(indexformatv0, *e2) | |
158 |
|
158 | |||
159 | # index ng: |
|
159 | # index ng: | |
160 | # 6 bytes: offset |
|
160 | # 6 bytes: offset | |
161 | # 2 bytes: flags |
|
161 | # 2 bytes: flags | |
162 | # 4 bytes: compressed length |
|
162 | # 4 bytes: compressed length | |
163 | # 4 bytes: uncompressed length |
|
163 | # 4 bytes: uncompressed length | |
164 | # 4 bytes: base rev |
|
164 | # 4 bytes: base rev | |
165 | # 4 bytes: link rev |
|
165 | # 4 bytes: link rev | |
166 | # 4 bytes: parent 1 rev |
|
166 | # 4 bytes: parent 1 rev | |
167 | # 4 bytes: parent 2 rev |
|
167 | # 4 bytes: parent 2 rev | |
168 | # 32 bytes: nodeid |
|
168 | # 32 bytes: nodeid | |
169 | indexformatng = ">Qiiiiii20s12x" |
|
169 | indexformatng = ">Qiiiiii20s12x" | |
170 | versionformat = ">I" |
|
170 | versionformat = ">I" | |
171 |
|
171 | |||
172 | # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte |
|
172 | # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte | |
173 | # signed integer) |
|
173 | # signed integer) | |
174 | _maxentrysize = 0x7fffffff |
|
174 | _maxentrysize = 0x7fffffff | |
175 |
|
175 | |||
176 | class revlogio(object): |
|
176 | class revlogio(object): | |
177 | def __init__(self): |
|
177 | def __init__(self): | |
178 | self.size = struct.calcsize(indexformatng) |
|
178 | self.size = struct.calcsize(indexformatng) | |
179 |
|
179 | |||
180 | def parseindex(self, data, inline): |
|
180 | def parseindex(self, data, inline): | |
181 | # call the C implementation to parse the index data |
|
181 | # call the C implementation to parse the index data | |
182 | index, cache = parsers.parse_index2(data, inline) |
|
182 | index, cache = parsers.parse_index2(data, inline) | |
183 | return index, getattr(index, 'nodemap', None), cache |
|
183 | return index, getattr(index, 'nodemap', None), cache | |
184 |
|
184 | |||
185 | def packentry(self, entry, node, version, rev): |
|
185 | def packentry(self, entry, node, version, rev): | |
186 | p = _pack(indexformatng, *entry) |
|
186 | p = _pack(indexformatng, *entry) | |
187 | if rev == 0: |
|
187 | if rev == 0: | |
188 | p = _pack(versionformat, version) + p[4:] |
|
188 | p = _pack(versionformat, version) + p[4:] | |
189 | return p |
|
189 | return p | |
190 |
|
190 | |||
191 | class revlog(object): |
|
191 | class revlog(object): | |
192 | """ |
|
192 | """ | |
193 | the underlying revision storage object |
|
193 | the underlying revision storage object | |
194 |
|
194 | |||
195 | A revlog consists of two parts, an index and the revision data. |
|
195 | A revlog consists of two parts, an index and the revision data. | |
196 |
|
196 | |||
197 | The index is a file with a fixed record size containing |
|
197 | The index is a file with a fixed record size containing | |
198 | information on each revision, including its nodeid (hash), the |
|
198 | information on each revision, including its nodeid (hash), the | |
199 | nodeids of its parents, the position and offset of its data within |
|
199 | nodeids of its parents, the position and offset of its data within | |
200 | the data file, and the revision it's based on. Finally, each entry |
|
200 | the data file, and the revision it's based on. Finally, each entry | |
201 | contains a linkrev entry that can serve as a pointer to external |
|
201 | contains a linkrev entry that can serve as a pointer to external | |
202 | data. |
|
202 | data. | |
203 |
|
203 | |||
204 | The revision data itself is a linear collection of data chunks. |
|
204 | The revision data itself is a linear collection of data chunks. | |
205 | Each chunk represents a revision and is usually represented as a |
|
205 | Each chunk represents a revision and is usually represented as a | |
206 | delta against the previous chunk. To bound lookup time, runs of |
|
206 | delta against the previous chunk. To bound lookup time, runs of | |
207 | deltas are limited to about 2 times the length of the original |
|
207 | deltas are limited to about 2 times the length of the original | |
208 | version data. This makes retrieval of a version proportional to |
|
208 | version data. This makes retrieval of a version proportional to | |
209 | its size, or O(1) relative to the number of revisions. |
|
209 | its size, or O(1) relative to the number of revisions. | |
210 |
|
210 | |||
211 | Both pieces of the revlog are written to in an append-only |
|
211 | Both pieces of the revlog are written to in an append-only | |
212 | fashion, which means we never need to rewrite a file to insert or |
|
212 | fashion, which means we never need to rewrite a file to insert or | |
213 | remove data, and can use some simple techniques to avoid the need |
|
213 | remove data, and can use some simple techniques to avoid the need | |
214 | for locking while reading. |
|
214 | for locking while reading. | |
215 | """ |
|
215 | """ | |
216 | def __init__(self, opener, indexfile): |
|
216 | def __init__(self, opener, indexfile): | |
217 | """ |
|
217 | """ | |
218 | create a revlog object |
|
218 | create a revlog object | |
219 |
|
219 | |||
220 | opener is a function that abstracts the file opening operation |
|
220 | opener is a function that abstracts the file opening operation | |
221 | and can be used to implement COW semantics or the like. |
|
221 | and can be used to implement COW semantics or the like. | |
222 | """ |
|
222 | """ | |
223 | self.indexfile = indexfile |
|
223 | self.indexfile = indexfile | |
224 | self.datafile = indexfile[:-2] + ".d" |
|
224 | self.datafile = indexfile[:-2] + ".d" | |
225 | self.opener = opener |
|
225 | self.opener = opener | |
226 | # 3-tuple of (node, rev, text) for a raw revision. |
|
226 | # 3-tuple of (node, rev, text) for a raw revision. | |
227 | self._cache = None |
|
227 | self._cache = None | |
228 | # 2-tuple of (rev, baserev) defining the base revision the delta chain |
|
228 | # 2-tuple of (rev, baserev) defining the base revision the delta chain | |
229 | # begins at for a revision. |
|
229 | # begins at for a revision. | |
230 | self._basecache = None |
|
230 | self._basecache = None | |
231 | # 2-tuple of (offset, data) of raw data from the revlog at an offset. |
|
231 | # 2-tuple of (offset, data) of raw data from the revlog at an offset. | |
232 | self._chunkcache = (0, '') |
|
232 | self._chunkcache = (0, '') | |
233 | # How much data to read and cache into the raw revlog data cache. |
|
233 | # How much data to read and cache into the raw revlog data cache. | |
234 | self._chunkcachesize = 65536 |
|
234 | self._chunkcachesize = 65536 | |
235 | self._maxchainlen = None |
|
235 | self._maxchainlen = None | |
236 | self._aggressivemergedeltas = False |
|
236 | self._aggressivemergedeltas = False | |
237 | self.index = [] |
|
237 | self.index = [] | |
238 | # Mapping of partial identifiers to full nodes. |
|
238 | # Mapping of partial identifiers to full nodes. | |
239 | self._pcache = {} |
|
239 | self._pcache = {} | |
240 | # Mapping of revision integer to full node. |
|
240 | # Mapping of revision integer to full node. | |
241 | self._nodecache = {nullid: nullrev} |
|
241 | self._nodecache = {nullid: nullrev} | |
242 | self._nodepos = None |
|
242 | self._nodepos = None | |
243 |
|
243 | |||
244 | v = REVLOG_DEFAULT_VERSION |
|
244 | v = REVLOG_DEFAULT_VERSION | |
245 | opts = getattr(opener, 'options', None) |
|
245 | opts = getattr(opener, 'options', None) | |
246 | if opts is not None: |
|
246 | if opts is not None: | |
247 | if 'revlogv1' in opts: |
|
247 | if 'revlogv1' in opts: | |
248 | if 'generaldelta' in opts: |
|
248 | if 'generaldelta' in opts: | |
249 | v |= REVLOGGENERALDELTA |
|
249 | v |= REVLOGGENERALDELTA | |
250 | else: |
|
250 | else: | |
251 | v = 0 |
|
251 | v = 0 | |
252 | if 'chunkcachesize' in opts: |
|
252 | if 'chunkcachesize' in opts: | |
253 | self._chunkcachesize = opts['chunkcachesize'] |
|
253 | self._chunkcachesize = opts['chunkcachesize'] | |
254 | if 'maxchainlen' in opts: |
|
254 | if 'maxchainlen' in opts: | |
255 | self._maxchainlen = opts['maxchainlen'] |
|
255 | self._maxchainlen = opts['maxchainlen'] | |
256 | if 'aggressivemergedeltas' in opts: |
|
256 | if 'aggressivemergedeltas' in opts: | |
257 | self._aggressivemergedeltas = opts['aggressivemergedeltas'] |
|
257 | self._aggressivemergedeltas = opts['aggressivemergedeltas'] | |
258 | self._lazydeltabase = bool(opts.get('lazydeltabase', False)) |
|
258 | self._lazydeltabase = bool(opts.get('lazydeltabase', False)) | |
259 |
|
259 | |||
260 | if self._chunkcachesize <= 0: |
|
260 | if self._chunkcachesize <= 0: | |
261 | raise RevlogError(_('revlog chunk cache size %r is not greater ' |
|
261 | raise RevlogError(_('revlog chunk cache size %r is not greater ' | |
262 | 'than 0') % self._chunkcachesize) |
|
262 | 'than 0') % self._chunkcachesize) | |
263 | elif self._chunkcachesize & (self._chunkcachesize - 1): |
|
263 | elif self._chunkcachesize & (self._chunkcachesize - 1): | |
264 | raise RevlogError(_('revlog chunk cache size %r is not a power ' |
|
264 | raise RevlogError(_('revlog chunk cache size %r is not a power ' | |
265 | 'of 2') % self._chunkcachesize) |
|
265 | 'of 2') % self._chunkcachesize) | |
266 |
|
266 | |||
267 | indexdata = '' |
|
267 | indexdata = '' | |
268 | self._initempty = True |
|
268 | self._initempty = True | |
269 | try: |
|
269 | try: | |
270 | f = self.opener(self.indexfile) |
|
270 | f = self.opener(self.indexfile) | |
271 | indexdata = f.read() |
|
271 | indexdata = f.read() | |
272 | f.close() |
|
272 | f.close() | |
273 | if len(indexdata) > 0: |
|
273 | if len(indexdata) > 0: | |
274 | v = struct.unpack(versionformat, indexdata[:4])[0] |
|
274 | v = struct.unpack(versionformat, indexdata[:4])[0] | |
275 | self._initempty = False |
|
275 | self._initempty = False | |
276 | except IOError as inst: |
|
276 | except IOError as inst: | |
277 | if inst.errno != errno.ENOENT: |
|
277 | if inst.errno != errno.ENOENT: | |
278 | raise |
|
278 | raise | |
279 |
|
279 | |||
280 | self.version = v |
|
280 | self.version = v | |
281 | self._inline = v & REVLOGNGINLINEDATA |
|
281 | self._inline = v & REVLOGNGINLINEDATA | |
282 | self._generaldelta = v & REVLOGGENERALDELTA |
|
282 | self._generaldelta = v & REVLOGGENERALDELTA | |
283 | flags = v & ~0xFFFF |
|
283 | flags = v & ~0xFFFF | |
284 | fmt = v & 0xFFFF |
|
284 | fmt = v & 0xFFFF | |
285 | if fmt == REVLOGV0 and flags: |
|
285 | if fmt == REVLOGV0 and flags: | |
286 | raise RevlogError(_("index %s unknown flags %#04x for format v0") |
|
286 | raise RevlogError(_("index %s unknown flags %#04x for format v0") | |
287 | % (self.indexfile, flags >> 16)) |
|
287 | % (self.indexfile, flags >> 16)) | |
288 | elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS: |
|
288 | elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS: | |
289 | raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
|
289 | raise RevlogError(_("index %s unknown flags %#04x for revlogng") | |
290 | % (self.indexfile, flags >> 16)) |
|
290 | % (self.indexfile, flags >> 16)) | |
291 | elif fmt > REVLOGNG: |
|
291 | elif fmt > REVLOGNG: | |
292 | raise RevlogError(_("index %s unknown format %d") |
|
292 | raise RevlogError(_("index %s unknown format %d") | |
293 | % (self.indexfile, fmt)) |
|
293 | % (self.indexfile, fmt)) | |
294 |
|
294 | |||
295 | self._io = revlogio() |
|
295 | self._io = revlogio() | |
296 | if self.version == REVLOGV0: |
|
296 | if self.version == REVLOGV0: | |
297 | self._io = revlogoldio() |
|
297 | self._io = revlogoldio() | |
298 | try: |
|
298 | try: | |
299 | d = self._io.parseindex(indexdata, self._inline) |
|
299 | d = self._io.parseindex(indexdata, self._inline) | |
300 | except (ValueError, IndexError): |
|
300 | except (ValueError, IndexError): | |
301 | raise RevlogError(_("index %s is corrupted") % (self.indexfile)) |
|
301 | raise RevlogError(_("index %s is corrupted") % (self.indexfile)) | |
302 | self.index, nodemap, self._chunkcache = d |
|
302 | self.index, nodemap, self._chunkcache = d | |
303 | if nodemap is not None: |
|
303 | if nodemap is not None: | |
304 | self.nodemap = self._nodecache = nodemap |
|
304 | self.nodemap = self._nodecache = nodemap | |
305 | if not self._chunkcache: |
|
305 | if not self._chunkcache: | |
306 | self._chunkclear() |
|
306 | self._chunkclear() | |
307 | # revnum -> (chain-length, sum-delta-length) |
|
307 | # revnum -> (chain-length, sum-delta-length) | |
308 | self._chaininfocache = {} |
|
308 | self._chaininfocache = {} | |
309 |
|
309 | |||
310 | def tip(self): |
|
310 | def tip(self): | |
311 | return self.node(len(self.index) - 2) |
|
311 | return self.node(len(self.index) - 2) | |
312 | def __contains__(self, rev): |
|
312 | def __contains__(self, rev): | |
313 | return 0 <= rev < len(self) |
|
313 | return 0 <= rev < len(self) | |
314 | def __len__(self): |
|
314 | def __len__(self): | |
315 | return len(self.index) - 1 |
|
315 | return len(self.index) - 1 | |
316 | def __iter__(self): |
|
316 | def __iter__(self): | |
317 | return iter(xrange(len(self))) |
|
317 | return iter(xrange(len(self))) | |
318 | def revs(self, start=0, stop=None): |
|
318 | def revs(self, start=0, stop=None): | |
319 | """iterate over all rev in this revlog (from start to stop)""" |
|
319 | """iterate over all rev in this revlog (from start to stop)""" | |
320 | step = 1 |
|
320 | step = 1 | |
321 | if stop is not None: |
|
321 | if stop is not None: | |
322 | if start > stop: |
|
322 | if start > stop: | |
323 | step = -1 |
|
323 | step = -1 | |
324 | stop += step |
|
324 | stop += step | |
325 | else: |
|
325 | else: | |
326 | stop = len(self) |
|
326 | stop = len(self) | |
327 | return xrange(start, stop, step) |
|
327 | return xrange(start, stop, step) | |
328 |
|
328 | |||
329 | @util.propertycache |
|
329 | @util.propertycache | |
330 | def nodemap(self): |
|
330 | def nodemap(self): | |
331 | self.rev(self.node(0)) |
|
331 | self.rev(self.node(0)) | |
332 | return self._nodecache |
|
332 | return self._nodecache | |
333 |
|
333 | |||
334 | def hasnode(self, node): |
|
334 | def hasnode(self, node): | |
335 | try: |
|
335 | try: | |
336 | self.rev(node) |
|
336 | self.rev(node) | |
337 | return True |
|
337 | return True | |
338 | except KeyError: |
|
338 | except KeyError: | |
339 | return False |
|
339 | return False | |
340 |
|
340 | |||
341 | def clearcaches(self): |
|
341 | def clearcaches(self): | |
342 | self._cache = None |
|
342 | self._cache = None | |
343 | self._basecache = None |
|
343 | self._basecache = None | |
344 | self._chunkcache = (0, '') |
|
344 | self._chunkcache = (0, '') | |
345 | self._pcache = {} |
|
345 | self._pcache = {} | |
346 |
|
346 | |||
347 | try: |
|
347 | try: | |
348 | self._nodecache.clearcaches() |
|
348 | self._nodecache.clearcaches() | |
349 | except AttributeError: |
|
349 | except AttributeError: | |
350 | self._nodecache = {nullid: nullrev} |
|
350 | self._nodecache = {nullid: nullrev} | |
351 | self._nodepos = None |
|
351 | self._nodepos = None | |
352 |
|
352 | |||
353 | def rev(self, node): |
|
353 | def rev(self, node): | |
354 | try: |
|
354 | try: | |
355 | return self._nodecache[node] |
|
355 | return self._nodecache[node] | |
356 | except TypeError: |
|
356 | except TypeError: | |
357 | raise |
|
357 | raise | |
358 | except RevlogError: |
|
358 | except RevlogError: | |
359 | # parsers.c radix tree lookup failed |
|
359 | # parsers.c radix tree lookup failed | |
360 | raise LookupError(node, self.indexfile, _('no node')) |
|
360 | raise LookupError(node, self.indexfile, _('no node')) | |
361 | except KeyError: |
|
361 | except KeyError: | |
362 | # pure python cache lookup failed |
|
362 | # pure python cache lookup failed | |
363 | n = self._nodecache |
|
363 | n = self._nodecache | |
364 | i = self.index |
|
364 | i = self.index | |
365 | p = self._nodepos |
|
365 | p = self._nodepos | |
366 | if p is None: |
|
366 | if p is None: | |
367 | p = len(i) - 2 |
|
367 | p = len(i) - 2 | |
368 | for r in xrange(p, -1, -1): |
|
368 | for r in xrange(p, -1, -1): | |
369 | v = i[r][7] |
|
369 | v = i[r][7] | |
370 | n[v] = r |
|
370 | n[v] = r | |
371 | if v == node: |
|
371 | if v == node: | |
372 | self._nodepos = r - 1 |
|
372 | self._nodepos = r - 1 | |
373 | return r |
|
373 | return r | |
374 | raise LookupError(node, self.indexfile, _('no node')) |
|
374 | raise LookupError(node, self.indexfile, _('no node')) | |
375 |
|
375 | |||
376 | def node(self, rev): |
|
376 | def node(self, rev): | |
377 | return self.index[rev][7] |
|
377 | return self.index[rev][7] | |
378 | def linkrev(self, rev): |
|
378 | def linkrev(self, rev): | |
379 | return self.index[rev][4] |
|
379 | return self.index[rev][4] | |
380 | def parents(self, node): |
|
380 | def parents(self, node): | |
381 | i = self.index |
|
381 | i = self.index | |
382 | d = i[self.rev(node)] |
|
382 | d = i[self.rev(node)] | |
383 | return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline |
|
383 | return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline | |
384 | def parentrevs(self, rev): |
|
384 | def parentrevs(self, rev): | |
385 | return self.index[rev][5:7] |
|
385 | return self.index[rev][5:7] | |
386 | def start(self, rev): |
|
386 | def start(self, rev): | |
387 | return int(self.index[rev][0] >> 16) |
|
387 | return int(self.index[rev][0] >> 16) | |
388 | def end(self, rev): |
|
388 | def end(self, rev): | |
389 | return self.start(rev) + self.length(rev) |
|
389 | return self.start(rev) + self.length(rev) | |
390 | def length(self, rev): |
|
390 | def length(self, rev): | |
391 | return self.index[rev][1] |
|
391 | return self.index[rev][1] | |
392 | def chainbase(self, rev): |
|
392 | def chainbase(self, rev): | |
393 | index = self.index |
|
393 | index = self.index | |
394 | base = index[rev][3] |
|
394 | base = index[rev][3] | |
395 | while base != rev: |
|
395 | while base != rev: | |
396 | rev = base |
|
396 | rev = base | |
397 | base = index[rev][3] |
|
397 | base = index[rev][3] | |
398 | return base |
|
398 | return base | |
399 | def chainlen(self, rev): |
|
399 | def chainlen(self, rev): | |
400 | return self._chaininfo(rev)[0] |
|
400 | return self._chaininfo(rev)[0] | |
401 |
|
401 | |||
402 | def _chaininfo(self, rev): |
|
402 | def _chaininfo(self, rev): | |
403 | chaininfocache = self._chaininfocache |
|
403 | chaininfocache = self._chaininfocache | |
404 | if rev in chaininfocache: |
|
404 | if rev in chaininfocache: | |
405 | return chaininfocache[rev] |
|
405 | return chaininfocache[rev] | |
406 | index = self.index |
|
406 | index = self.index | |
407 | generaldelta = self._generaldelta |
|
407 | generaldelta = self._generaldelta | |
408 | iterrev = rev |
|
408 | iterrev = rev | |
409 | e = index[iterrev] |
|
409 | e = index[iterrev] | |
410 | clen = 0 |
|
410 | clen = 0 | |
411 | compresseddeltalen = 0 |
|
411 | compresseddeltalen = 0 | |
412 | while iterrev != e[3]: |
|
412 | while iterrev != e[3]: | |
413 | clen += 1 |
|
413 | clen += 1 | |
414 | compresseddeltalen += e[1] |
|
414 | compresseddeltalen += e[1] | |
415 | if generaldelta: |
|
415 | if generaldelta: | |
416 | iterrev = e[3] |
|
416 | iterrev = e[3] | |
417 | else: |
|
417 | else: | |
418 | iterrev -= 1 |
|
418 | iterrev -= 1 | |
419 | if iterrev in chaininfocache: |
|
419 | if iterrev in chaininfocache: | |
420 | t = chaininfocache[iterrev] |
|
420 | t = chaininfocache[iterrev] | |
421 | clen += t[0] |
|
421 | clen += t[0] | |
422 | compresseddeltalen += t[1] |
|
422 | compresseddeltalen += t[1] | |
423 | break |
|
423 | break | |
424 | e = index[iterrev] |
|
424 | e = index[iterrev] | |
425 | else: |
|
425 | else: | |
426 | # Add text length of base since decompressing that also takes |
|
426 | # Add text length of base since decompressing that also takes | |
427 | # work. For cache hits the length is already included. |
|
427 | # work. For cache hits the length is already included. | |
428 | compresseddeltalen += e[1] |
|
428 | compresseddeltalen += e[1] | |
429 | r = (clen, compresseddeltalen) |
|
429 | r = (clen, compresseddeltalen) | |
430 | chaininfocache[rev] = r |
|
430 | chaininfocache[rev] = r | |
431 | return r |
|
431 | return r | |
432 |
|
432 | |||
433 | def _deltachain(self, rev, stoprev=None): |
|
433 | def _deltachain(self, rev, stoprev=None): | |
434 | """Obtain the delta chain for a revision. |
|
434 | """Obtain the delta chain for a revision. | |
435 |
|
435 | |||
436 | ``stoprev`` specifies a revision to stop at. If not specified, we |
|
436 | ``stoprev`` specifies a revision to stop at. If not specified, we | |
437 | stop at the base of the chain. |
|
437 | stop at the base of the chain. | |
438 |
|
438 | |||
439 | Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of |
|
439 | Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of | |
440 | revs in ascending order and ``stopped`` is a bool indicating whether |
|
440 | revs in ascending order and ``stopped`` is a bool indicating whether | |
441 | ``stoprev`` was hit. |
|
441 | ``stoprev`` was hit. | |
442 | """ |
|
442 | """ | |
443 | chain = [] |
|
443 | chain = [] | |
444 |
|
444 | |||
445 | # Alias to prevent attribute lookup in tight loop. |
|
445 | # Alias to prevent attribute lookup in tight loop. | |
446 | index = self.index |
|
446 | index = self.index | |
447 | generaldelta = self._generaldelta |
|
447 | generaldelta = self._generaldelta | |
448 |
|
448 | |||
449 | iterrev = rev |
|
449 | iterrev = rev | |
450 | e = index[iterrev] |
|
450 | e = index[iterrev] | |
451 | while iterrev != e[3] and iterrev != stoprev: |
|
451 | while iterrev != e[3] and iterrev != stoprev: | |
452 | chain.append(iterrev) |
|
452 | chain.append(iterrev) | |
453 | if generaldelta: |
|
453 | if generaldelta: | |
454 | iterrev = e[3] |
|
454 | iterrev = e[3] | |
455 | else: |
|
455 | else: | |
456 | iterrev -= 1 |
|
456 | iterrev -= 1 | |
457 | e = index[iterrev] |
|
457 | e = index[iterrev] | |
458 |
|
458 | |||
459 | if iterrev == stoprev: |
|
459 | if iterrev == stoprev: | |
460 | stopped = True |
|
460 | stopped = True | |
461 | else: |
|
461 | else: | |
462 | chain.append(iterrev) |
|
462 | chain.append(iterrev) | |
463 | stopped = False |
|
463 | stopped = False | |
464 |
|
464 | |||
465 | chain.reverse() |
|
465 | chain.reverse() | |
466 | return chain, stopped |
|
466 | return chain, stopped | |
467 |
|
467 | |||
468 | def flags(self, rev): |
|
468 | def flags(self, rev): | |
469 | return self.index[rev][0] & 0xFFFF |
|
469 | return self.index[rev][0] & 0xFFFF | |
470 | def rawsize(self, rev): |
|
470 | def rawsize(self, rev): | |
471 | """return the length of the uncompressed text for a given revision""" |
|
471 | """return the length of the uncompressed text for a given revision""" | |
472 | l = self.index[rev][2] |
|
472 | l = self.index[rev][2] | |
473 | if l >= 0: |
|
473 | if l >= 0: | |
474 | return l |
|
474 | return l | |
475 |
|
475 | |||
476 | t = self.revision(self.node(rev)) |
|
476 | t = self.revision(self.node(rev)) | |
477 | return len(t) |
|
477 | return len(t) | |
478 | size = rawsize |
|
478 | size = rawsize | |
479 |
|
479 | |||
480 | def ancestors(self, revs, stoprev=0, inclusive=False): |
|
480 | def ancestors(self, revs, stoprev=0, inclusive=False): | |
481 | """Generate the ancestors of 'revs' in reverse topological order. |
|
481 | """Generate the ancestors of 'revs' in reverse topological order. | |
482 | Does not generate revs lower than stoprev. |
|
482 | Does not generate revs lower than stoprev. | |
483 |
|
483 | |||
484 | See the documentation for ancestor.lazyancestors for more details.""" |
|
484 | See the documentation for ancestor.lazyancestors for more details.""" | |
485 |
|
485 | |||
486 | return ancestor.lazyancestors(self.parentrevs, revs, stoprev=stoprev, |
|
486 | return ancestor.lazyancestors(self.parentrevs, revs, stoprev=stoprev, | |
487 | inclusive=inclusive) |
|
487 | inclusive=inclusive) | |
488 |
|
488 | |||
489 | def descendants(self, revs): |
|
489 | def descendants(self, revs): | |
490 | """Generate the descendants of 'revs' in revision order. |
|
490 | """Generate the descendants of 'revs' in revision order. | |
491 |
|
491 | |||
492 | Yield a sequence of revision numbers starting with a child of |
|
492 | Yield a sequence of revision numbers starting with a child of | |
493 | some rev in revs, i.e., each revision is *not* considered a |
|
493 | some rev in revs, i.e., each revision is *not* considered a | |
494 | descendant of itself. Results are ordered by revision number (a |
|
494 | descendant of itself. Results are ordered by revision number (a | |
495 | topological sort).""" |
|
495 | topological sort).""" | |
496 | first = min(revs) |
|
496 | first = min(revs) | |
497 | if first == nullrev: |
|
497 | if first == nullrev: | |
498 | for i in self: |
|
498 | for i in self: | |
499 | yield i |
|
499 | yield i | |
500 | return |
|
500 | return | |
501 |
|
501 | |||
502 | seen = set(revs) |
|
502 | seen = set(revs) | |
503 | for i in self.revs(start=first + 1): |
|
503 | for i in self.revs(start=first + 1): | |
504 | for x in self.parentrevs(i): |
|
504 | for x in self.parentrevs(i): | |
505 | if x != nullrev and x in seen: |
|
505 | if x != nullrev and x in seen: | |
506 | seen.add(i) |
|
506 | seen.add(i) | |
507 | yield i |
|
507 | yield i | |
508 | break |
|
508 | break | |
509 |
|
509 | |||
510 | def findcommonmissing(self, common=None, heads=None): |
|
510 | def findcommonmissing(self, common=None, heads=None): | |
511 | """Return a tuple of the ancestors of common and the ancestors of heads |
|
511 | """Return a tuple of the ancestors of common and the ancestors of heads | |
512 | that are not ancestors of common. In revset terminology, we return the |
|
512 | that are not ancestors of common. In revset terminology, we return the | |
513 | tuple: |
|
513 | tuple: | |
514 |
|
514 | |||
515 | ::common, (::heads) - (::common) |
|
515 | ::common, (::heads) - (::common) | |
516 |
|
516 | |||
517 | The list is sorted by revision number, meaning it is |
|
517 | The list is sorted by revision number, meaning it is | |
518 | topologically sorted. |
|
518 | topologically sorted. | |
519 |
|
519 | |||
520 | 'heads' and 'common' are both lists of node IDs. If heads is |
|
520 | 'heads' and 'common' are both lists of node IDs. If heads is | |
521 | not supplied, uses all of the revlog's heads. If common is not |
|
521 | not supplied, uses all of the revlog's heads. If common is not | |
522 | supplied, uses nullid.""" |
|
522 | supplied, uses nullid.""" | |
523 | if common is None: |
|
523 | if common is None: | |
524 | common = [nullid] |
|
524 | common = [nullid] | |
525 | if heads is None: |
|
525 | if heads is None: | |
526 | heads = self.heads() |
|
526 | heads = self.heads() | |
527 |
|
527 | |||
528 | common = [self.rev(n) for n in common] |
|
528 | common = [self.rev(n) for n in common] | |
529 | heads = [self.rev(n) for n in heads] |
|
529 | heads = [self.rev(n) for n in heads] | |
530 |
|
530 | |||
531 | # we want the ancestors, but inclusive |
|
531 | # we want the ancestors, but inclusive | |
532 | class lazyset(object): |
|
532 | class lazyset(object): | |
533 | def __init__(self, lazyvalues): |
|
533 | def __init__(self, lazyvalues): | |
534 | self.addedvalues = set() |
|
534 | self.addedvalues = set() | |
535 | self.lazyvalues = lazyvalues |
|
535 | self.lazyvalues = lazyvalues | |
536 |
|
536 | |||
537 | def __contains__(self, value): |
|
537 | def __contains__(self, value): | |
538 | return value in self.addedvalues or value in self.lazyvalues |
|
538 | return value in self.addedvalues or value in self.lazyvalues | |
539 |
|
539 | |||
540 | def __iter__(self): |
|
540 | def __iter__(self): | |
541 | added = self.addedvalues |
|
541 | added = self.addedvalues | |
542 | for r in added: |
|
542 | for r in added: | |
543 | yield r |
|
543 | yield r | |
544 | for r in self.lazyvalues: |
|
544 | for r in self.lazyvalues: | |
545 | if not r in added: |
|
545 | if not r in added: | |
546 | yield r |
|
546 | yield r | |
547 |
|
547 | |||
548 | def add(self, value): |
|
548 | def add(self, value): | |
549 | self.addedvalues.add(value) |
|
549 | self.addedvalues.add(value) | |
550 |
|
550 | |||
551 | def update(self, values): |
|
551 | def update(self, values): | |
552 | self.addedvalues.update(values) |
|
552 | self.addedvalues.update(values) | |
553 |
|
553 | |||
554 | has = lazyset(self.ancestors(common)) |
|
554 | has = lazyset(self.ancestors(common)) | |
555 | has.add(nullrev) |
|
555 | has.add(nullrev) | |
556 | has.update(common) |
|
556 | has.update(common) | |
557 |
|
557 | |||
558 | # take all ancestors from heads that aren't in has |
|
558 | # take all ancestors from heads that aren't in has | |
559 | missing = set() |
|
559 | missing = set() | |
560 | visit = collections.deque(r for r in heads if r not in has) |
|
560 | visit = collections.deque(r for r in heads if r not in has) | |
561 | while visit: |
|
561 | while visit: | |
562 | r = visit.popleft() |
|
562 | r = visit.popleft() | |
563 | if r in missing: |
|
563 | if r in missing: | |
564 | continue |
|
564 | continue | |
565 | else: |
|
565 | else: | |
566 | missing.add(r) |
|
566 | missing.add(r) | |
567 | for p in self.parentrevs(r): |
|
567 | for p in self.parentrevs(r): | |
568 | if p not in has: |
|
568 | if p not in has: | |
569 | visit.append(p) |
|
569 | visit.append(p) | |
570 | missing = list(missing) |
|
570 | missing = list(missing) | |
571 | missing.sort() |
|
571 | missing.sort() | |
572 | return has, [self.node(r) for r in missing] |
|
572 | return has, [self.node(r) for r in missing] | |
573 |
|
573 | |||
574 | def incrementalmissingrevs(self, common=None): |
|
574 | def incrementalmissingrevs(self, common=None): | |
575 | """Return an object that can be used to incrementally compute the |
|
575 | """Return an object that can be used to incrementally compute the | |
576 | revision numbers of the ancestors of arbitrary sets that are not |
|
576 | revision numbers of the ancestors of arbitrary sets that are not | |
577 | ancestors of common. This is an ancestor.incrementalmissingancestors |
|
577 | ancestors of common. This is an ancestor.incrementalmissingancestors | |
578 | object. |
|
578 | object. | |
579 |
|
579 | |||
580 | 'common' is a list of revision numbers. If common is not supplied, uses |
|
580 | 'common' is a list of revision numbers. If common is not supplied, uses | |
581 | nullrev. |
|
581 | nullrev. | |
582 | """ |
|
582 | """ | |
583 | if common is None: |
|
583 | if common is None: | |
584 | common = [nullrev] |
|
584 | common = [nullrev] | |
585 |
|
585 | |||
586 | return ancestor.incrementalmissingancestors(self.parentrevs, common) |
|
586 | return ancestor.incrementalmissingancestors(self.parentrevs, common) | |
587 |
|
587 | |||
588 | def findmissingrevs(self, common=None, heads=None): |
|
588 | def findmissingrevs(self, common=None, heads=None): | |
589 | """Return the revision numbers of the ancestors of heads that |
|
589 | """Return the revision numbers of the ancestors of heads that | |
590 | are not ancestors of common. |
|
590 | are not ancestors of common. | |
591 |
|
591 | |||
592 | More specifically, return a list of revision numbers corresponding to |
|
592 | More specifically, return a list of revision numbers corresponding to | |
593 | nodes N such that every N satisfies the following constraints: |
|
593 | nodes N such that every N satisfies the following constraints: | |
594 |
|
594 | |||
595 | 1. N is an ancestor of some node in 'heads' |
|
595 | 1. N is an ancestor of some node in 'heads' | |
596 | 2. N is not an ancestor of any node in 'common' |
|
596 | 2. N is not an ancestor of any node in 'common' | |
597 |
|
597 | |||
598 | The list is sorted by revision number, meaning it is |
|
598 | The list is sorted by revision number, meaning it is | |
599 | topologically sorted. |
|
599 | topologically sorted. | |
600 |
|
600 | |||
601 | 'heads' and 'common' are both lists of revision numbers. If heads is |
|
601 | 'heads' and 'common' are both lists of revision numbers. If heads is | |
602 | not supplied, uses all of the revlog's heads. If common is not |
|
602 | not supplied, uses all of the revlog's heads. If common is not | |
603 | supplied, uses nullid.""" |
|
603 | supplied, uses nullid.""" | |
604 | if common is None: |
|
604 | if common is None: | |
605 | common = [nullrev] |
|
605 | common = [nullrev] | |
606 | if heads is None: |
|
606 | if heads is None: | |
607 | heads = self.headrevs() |
|
607 | heads = self.headrevs() | |
608 |
|
608 | |||
609 | inc = self.incrementalmissingrevs(common=common) |
|
609 | inc = self.incrementalmissingrevs(common=common) | |
610 | return inc.missingancestors(heads) |
|
610 | return inc.missingancestors(heads) | |
611 |
|
611 | |||
612 | def findmissing(self, common=None, heads=None): |
|
612 | def findmissing(self, common=None, heads=None): | |
613 | """Return the ancestors of heads that are not ancestors of common. |
|
613 | """Return the ancestors of heads that are not ancestors of common. | |
614 |
|
614 | |||
615 | More specifically, return a list of nodes N such that every N |
|
615 | More specifically, return a list of nodes N such that every N | |
616 | satisfies the following constraints: |
|
616 | satisfies the following constraints: | |
617 |
|
617 | |||
618 | 1. N is an ancestor of some node in 'heads' |
|
618 | 1. N is an ancestor of some node in 'heads' | |
619 | 2. N is not an ancestor of any node in 'common' |
|
619 | 2. N is not an ancestor of any node in 'common' | |
620 |
|
620 | |||
621 | The list is sorted by revision number, meaning it is |
|
621 | The list is sorted by revision number, meaning it is | |
622 | topologically sorted. |
|
622 | topologically sorted. | |
623 |
|
623 | |||
624 | 'heads' and 'common' are both lists of node IDs. If heads is |
|
624 | 'heads' and 'common' are both lists of node IDs. If heads is | |
625 | not supplied, uses all of the revlog's heads. If common is not |
|
625 | not supplied, uses all of the revlog's heads. If common is not | |
626 | supplied, uses nullid.""" |
|
626 | supplied, uses nullid.""" | |
627 | if common is None: |
|
627 | if common is None: | |
628 | common = [nullid] |
|
628 | common = [nullid] | |
629 | if heads is None: |
|
629 | if heads is None: | |
630 | heads = self.heads() |
|
630 | heads = self.heads() | |
631 |
|
631 | |||
632 | common = [self.rev(n) for n in common] |
|
632 | common = [self.rev(n) for n in common] | |
633 | heads = [self.rev(n) for n in heads] |
|
633 | heads = [self.rev(n) for n in heads] | |
634 |
|
634 | |||
635 | inc = self.incrementalmissingrevs(common=common) |
|
635 | inc = self.incrementalmissingrevs(common=common) | |
636 | return [self.node(r) for r in inc.missingancestors(heads)] |
|
636 | return [self.node(r) for r in inc.missingancestors(heads)] | |
637 |
|
637 | |||
638 | def nodesbetween(self, roots=None, heads=None): |
|
638 | def nodesbetween(self, roots=None, heads=None): | |
639 | """Return a topological path from 'roots' to 'heads'. |
|
639 | """Return a topological path from 'roots' to 'heads'. | |
640 |
|
640 | |||
641 | Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
|
641 | Return a tuple (nodes, outroots, outheads) where 'nodes' is a | |
642 | topologically sorted list of all nodes N that satisfy both of |
|
642 | topologically sorted list of all nodes N that satisfy both of | |
643 | these constraints: |
|
643 | these constraints: | |
644 |
|
644 | |||
645 | 1. N is a descendant of some node in 'roots' |
|
645 | 1. N is a descendant of some node in 'roots' | |
646 | 2. N is an ancestor of some node in 'heads' |
|
646 | 2. N is an ancestor of some node in 'heads' | |
647 |
|
647 | |||
648 | Every node is considered to be both a descendant and an ancestor |
|
648 | Every node is considered to be both a descendant and an ancestor | |
649 | of itself, so every reachable node in 'roots' and 'heads' will be |
|
649 | of itself, so every reachable node in 'roots' and 'heads' will be | |
650 | included in 'nodes'. |
|
650 | included in 'nodes'. | |
651 |
|
651 | |||
652 | 'outroots' is the list of reachable nodes in 'roots', i.e., the |
|
652 | 'outroots' is the list of reachable nodes in 'roots', i.e., the | |
653 | subset of 'roots' that is returned in 'nodes'. Likewise, |
|
653 | subset of 'roots' that is returned in 'nodes'. Likewise, | |
654 | 'outheads' is the subset of 'heads' that is also in 'nodes'. |
|
654 | 'outheads' is the subset of 'heads' that is also in 'nodes'. | |
655 |
|
655 | |||
656 | 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
|
656 | 'roots' and 'heads' are both lists of node IDs. If 'roots' is | |
657 | unspecified, uses nullid as the only root. If 'heads' is |
|
657 | unspecified, uses nullid as the only root. If 'heads' is | |
658 | unspecified, uses list of all of the revlog's heads.""" |
|
658 | unspecified, uses list of all of the revlog's heads.""" | |
659 | nonodes = ([], [], []) |
|
659 | nonodes = ([], [], []) | |
660 | if roots is not None: |
|
660 | if roots is not None: | |
661 | roots = list(roots) |
|
661 | roots = list(roots) | |
662 | if not roots: |
|
662 | if not roots: | |
663 | return nonodes |
|
663 | return nonodes | |
664 | lowestrev = min([self.rev(n) for n in roots]) |
|
664 | lowestrev = min([self.rev(n) for n in roots]) | |
665 | else: |
|
665 | else: | |
666 | roots = [nullid] # Everybody's a descendant of nullid |
|
666 | roots = [nullid] # Everybody's a descendant of nullid | |
667 | lowestrev = nullrev |
|
667 | lowestrev = nullrev | |
668 | if (lowestrev == nullrev) and (heads is None): |
|
668 | if (lowestrev == nullrev) and (heads is None): | |
669 | # We want _all_ the nodes! |
|
669 | # We want _all_ the nodes! | |
670 | return ([self.node(r) for r in self], [nullid], list(self.heads())) |
|
670 | return ([self.node(r) for r in self], [nullid], list(self.heads())) | |
671 | if heads is None: |
|
671 | if heads is None: | |
672 | # All nodes are ancestors, so the latest ancestor is the last |
|
672 | # All nodes are ancestors, so the latest ancestor is the last | |
673 | # node. |
|
673 | # node. | |
674 | highestrev = len(self) - 1 |
|
674 | highestrev = len(self) - 1 | |
675 | # Set ancestors to None to signal that every node is an ancestor. |
|
675 | # Set ancestors to None to signal that every node is an ancestor. | |
676 | ancestors = None |
|
676 | ancestors = None | |
677 | # Set heads to an empty dictionary for later discovery of heads |
|
677 | # Set heads to an empty dictionary for later discovery of heads | |
678 | heads = {} |
|
678 | heads = {} | |
679 | else: |
|
679 | else: | |
680 | heads = list(heads) |
|
680 | heads = list(heads) | |
681 | if not heads: |
|
681 | if not heads: | |
682 | return nonodes |
|
682 | return nonodes | |
683 | ancestors = set() |
|
683 | ancestors = set() | |
684 | # Turn heads into a dictionary so we can remove 'fake' heads. |
|
684 | # Turn heads into a dictionary so we can remove 'fake' heads. | |
685 | # Also, later we will be using it to filter out the heads we can't |
|
685 | # Also, later we will be using it to filter out the heads we can't | |
686 | # find from roots. |
|
686 | # find from roots. | |
687 | heads = dict.fromkeys(heads, False) |
|
687 | heads = dict.fromkeys(heads, False) | |
688 | # Start at the top and keep marking parents until we're done. |
|
688 | # Start at the top and keep marking parents until we're done. | |
689 | nodestotag = set(heads) |
|
689 | nodestotag = set(heads) | |
690 | # Remember where the top was so we can use it as a limit later. |
|
690 | # Remember where the top was so we can use it as a limit later. | |
691 | highestrev = max([self.rev(n) for n in nodestotag]) |
|
691 | highestrev = max([self.rev(n) for n in nodestotag]) | |
692 | while nodestotag: |
|
692 | while nodestotag: | |
693 | # grab a node to tag |
|
693 | # grab a node to tag | |
694 | n = nodestotag.pop() |
|
694 | n = nodestotag.pop() | |
695 | # Never tag nullid |
|
695 | # Never tag nullid | |
696 | if n == nullid: |
|
696 | if n == nullid: | |
697 | continue |
|
697 | continue | |
698 | # A node's revision number represents its place in a |
|
698 | # A node's revision number represents its place in a | |
699 | # topologically sorted list of nodes. |
|
699 | # topologically sorted list of nodes. | |
700 | r = self.rev(n) |
|
700 | r = self.rev(n) | |
701 | if r >= lowestrev: |
|
701 | if r >= lowestrev: | |
702 | if n not in ancestors: |
|
702 | if n not in ancestors: | |
703 | # If we are possibly a descendant of one of the roots |
|
703 | # If we are possibly a descendant of one of the roots | |
704 | # and we haven't already been marked as an ancestor |
|
704 | # and we haven't already been marked as an ancestor | |
705 | ancestors.add(n) # Mark as ancestor |
|
705 | ancestors.add(n) # Mark as ancestor | |
706 | # Add non-nullid parents to list of nodes to tag. |
|
706 | # Add non-nullid parents to list of nodes to tag. | |
707 | nodestotag.update([p for p in self.parents(n) if |
|
707 | nodestotag.update([p for p in self.parents(n) if | |
708 | p != nullid]) |
|
708 | p != nullid]) | |
709 | elif n in heads: # We've seen it before, is it a fake head? |
|
709 | elif n in heads: # We've seen it before, is it a fake head? | |
710 | # So it is, real heads should not be the ancestors of |
|
710 | # So it is, real heads should not be the ancestors of | |
711 | # any other heads. |
|
711 | # any other heads. | |
712 | heads.pop(n) |
|
712 | heads.pop(n) | |
713 | if not ancestors: |
|
713 | if not ancestors: | |
714 | return nonodes |
|
714 | return nonodes | |
715 | # Now that we have our set of ancestors, we want to remove any |
|
715 | # Now that we have our set of ancestors, we want to remove any | |
716 | # roots that are not ancestors. |
|
716 | # roots that are not ancestors. | |
717 |
|
717 | |||
718 | # If one of the roots was nullid, everything is included anyway. |
|
718 | # If one of the roots was nullid, everything is included anyway. | |
719 | if lowestrev > nullrev: |
|
719 | if lowestrev > nullrev: | |
720 | # But, since we weren't, let's recompute the lowest rev to not |
|
720 | # But, since we weren't, let's recompute the lowest rev to not | |
721 | # include roots that aren't ancestors. |
|
721 | # include roots that aren't ancestors. | |
722 |
|
722 | |||
723 | # Filter out roots that aren't ancestors of heads |
|
723 | # Filter out roots that aren't ancestors of heads | |
724 | roots = [n for n in roots if n in ancestors] |
|
724 | roots = [n for n in roots if n in ancestors] | |
725 | # Recompute the lowest revision |
|
725 | # Recompute the lowest revision | |
726 | if roots: |
|
726 | if roots: | |
727 | lowestrev = min([self.rev(n) for n in roots]) |
|
727 | lowestrev = min([self.rev(n) for n in roots]) | |
728 | else: |
|
728 | else: | |
729 | # No more roots? Return empty list |
|
729 | # No more roots? Return empty list | |
730 | return nonodes |
|
730 | return nonodes | |
731 | else: |
|
731 | else: | |
732 | # We are descending from nullid, and don't need to care about |
|
732 | # We are descending from nullid, and don't need to care about | |
733 | # any other roots. |
|
733 | # any other roots. | |
734 | lowestrev = nullrev |
|
734 | lowestrev = nullrev | |
735 | roots = [nullid] |
|
735 | roots = [nullid] | |
736 | # Transform our roots list into a set. |
|
736 | # Transform our roots list into a set. | |
737 | descendants = set(roots) |
|
737 | descendants = set(roots) | |
738 | # Also, keep the original roots so we can filter out roots that aren't |
|
738 | # Also, keep the original roots so we can filter out roots that aren't | |
739 | # 'real' roots (i.e. are descended from other roots). |
|
739 | # 'real' roots (i.e. are descended from other roots). | |
740 | roots = descendants.copy() |
|
740 | roots = descendants.copy() | |
741 | # Our topologically sorted list of output nodes. |
|
741 | # Our topologically sorted list of output nodes. | |
742 | orderedout = [] |
|
742 | orderedout = [] | |
743 | # Don't start at nullid since we don't want nullid in our output list, |
|
743 | # Don't start at nullid since we don't want nullid in our output list, | |
744 | # and if nullid shows up in descendants, empty parents will look like |
|
744 | # and if nullid shows up in descendants, empty parents will look like | |
745 | # they're descendants. |
|
745 | # they're descendants. | |
746 | for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): |
|
746 | for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): | |
747 | n = self.node(r) |
|
747 | n = self.node(r) | |
748 | isdescendant = False |
|
748 | isdescendant = False | |
749 | if lowestrev == nullrev: # Everybody is a descendant of nullid |
|
749 | if lowestrev == nullrev: # Everybody is a descendant of nullid | |
750 | isdescendant = True |
|
750 | isdescendant = True | |
751 | elif n in descendants: |
|
751 | elif n in descendants: | |
752 | # n is already a descendant |
|
752 | # n is already a descendant | |
753 | isdescendant = True |
|
753 | isdescendant = True | |
754 | # This check only needs to be done here because all the roots |
|
754 | # This check only needs to be done here because all the roots | |
755 | # will start being marked is descendants before the loop. |
|
755 | # will start being marked is descendants before the loop. | |
756 | if n in roots: |
|
756 | if n in roots: | |
757 | # If n was a root, check if it's a 'real' root. |
|
757 | # If n was a root, check if it's a 'real' root. | |
758 | p = tuple(self.parents(n)) |
|
758 | p = tuple(self.parents(n)) | |
759 | # If any of its parents are descendants, it's not a root. |
|
759 | # If any of its parents are descendants, it's not a root. | |
760 | if (p[0] in descendants) or (p[1] in descendants): |
|
760 | if (p[0] in descendants) or (p[1] in descendants): | |
761 | roots.remove(n) |
|
761 | roots.remove(n) | |
762 | else: |
|
762 | else: | |
763 | p = tuple(self.parents(n)) |
|
763 | p = tuple(self.parents(n)) | |
764 | # A node is a descendant if either of its parents are |
|
764 | # A node is a descendant if either of its parents are | |
765 | # descendants. (We seeded the dependents list with the roots |
|
765 | # descendants. (We seeded the dependents list with the roots | |
766 | # up there, remember?) |
|
766 | # up there, remember?) | |
767 | if (p[0] in descendants) or (p[1] in descendants): |
|
767 | if (p[0] in descendants) or (p[1] in descendants): | |
768 | descendants.add(n) |
|
768 | descendants.add(n) | |
769 | isdescendant = True |
|
769 | isdescendant = True | |
770 | if isdescendant and ((ancestors is None) or (n in ancestors)): |
|
770 | if isdescendant and ((ancestors is None) or (n in ancestors)): | |
771 | # Only include nodes that are both descendants and ancestors. |
|
771 | # Only include nodes that are both descendants and ancestors. | |
772 | orderedout.append(n) |
|
772 | orderedout.append(n) | |
773 | if (ancestors is not None) and (n in heads): |
|
773 | if (ancestors is not None) and (n in heads): | |
774 | # We're trying to figure out which heads are reachable |
|
774 | # We're trying to figure out which heads are reachable | |
775 | # from roots. |
|
775 | # from roots. | |
776 | # Mark this head as having been reached |
|
776 | # Mark this head as having been reached | |
777 | heads[n] = True |
|
777 | heads[n] = True | |
778 | elif ancestors is None: |
|
778 | elif ancestors is None: | |
779 | # Otherwise, we're trying to discover the heads. |
|
779 | # Otherwise, we're trying to discover the heads. | |
780 | # Assume this is a head because if it isn't, the next step |
|
780 | # Assume this is a head because if it isn't, the next step | |
781 | # will eventually remove it. |
|
781 | # will eventually remove it. | |
782 | heads[n] = True |
|
782 | heads[n] = True | |
783 | # But, obviously its parents aren't. |
|
783 | # But, obviously its parents aren't. | |
784 | for p in self.parents(n): |
|
784 | for p in self.parents(n): | |
785 | heads.pop(p, None) |
|
785 | heads.pop(p, None) | |
786 | heads = [n for n, flag in heads.iteritems() if flag] |
|
786 | heads = [n for n, flag in heads.iteritems() if flag] | |
787 | roots = list(roots) |
|
787 | roots = list(roots) | |
788 | assert orderedout |
|
788 | assert orderedout | |
789 | assert roots |
|
789 | assert roots | |
790 | assert heads |
|
790 | assert heads | |
791 | return (orderedout, roots, heads) |
|
791 | return (orderedout, roots, heads) | |
792 |
|
792 | |||
793 | def headrevs(self): |
|
793 | def headrevs(self): | |
794 | try: |
|
794 | try: | |
795 | return self.index.headrevs() |
|
795 | return self.index.headrevs() | |
796 | except AttributeError: |
|
796 | except AttributeError: | |
797 | return self._headrevs() |
|
797 | return self._headrevs() | |
798 |
|
798 | |||
799 | def computephases(self, roots): |
|
799 | def computephases(self, roots): | |
800 | return self.index.computephasesmapsets(roots) |
|
800 | return self.index.computephasesmapsets(roots) | |
801 |
|
801 | |||
802 | def _headrevs(self): |
|
802 | def _headrevs(self): | |
803 | count = len(self) |
|
803 | count = len(self) | |
804 | if not count: |
|
804 | if not count: | |
805 | return [nullrev] |
|
805 | return [nullrev] | |
806 | # we won't iter over filtered rev so nobody is a head at start |
|
806 | # we won't iter over filtered rev so nobody is a head at start | |
807 | ishead = [0] * (count + 1) |
|
807 | ishead = [0] * (count + 1) | |
808 | index = self.index |
|
808 | index = self.index | |
809 | for r in self: |
|
809 | for r in self: | |
810 | ishead[r] = 1 # I may be an head |
|
810 | ishead[r] = 1 # I may be an head | |
811 | e = index[r] |
|
811 | e = index[r] | |
812 | ishead[e[5]] = ishead[e[6]] = 0 # my parent are not |
|
812 | ishead[e[5]] = ishead[e[6]] = 0 # my parent are not | |
813 | return [r for r, val in enumerate(ishead) if val] |
|
813 | return [r for r, val in enumerate(ishead) if val] | |
814 |
|
814 | |||
815 | def heads(self, start=None, stop=None): |
|
815 | def heads(self, start=None, stop=None): | |
816 | """return the list of all nodes that have no children |
|
816 | """return the list of all nodes that have no children | |
817 |
|
817 | |||
818 | if start is specified, only heads that are descendants of |
|
818 | if start is specified, only heads that are descendants of | |
819 | start will be returned |
|
819 | start will be returned | |
820 | if stop is specified, it will consider all the revs from stop |
|
820 | if stop is specified, it will consider all the revs from stop | |
821 | as if they had no children |
|
821 | as if they had no children | |
822 | """ |
|
822 | """ | |
823 | if start is None and stop is None: |
|
823 | if start is None and stop is None: | |
824 | if not len(self): |
|
824 | if not len(self): | |
825 | return [nullid] |
|
825 | return [nullid] | |
826 | return [self.node(r) for r in self.headrevs()] |
|
826 | return [self.node(r) for r in self.headrevs()] | |
827 |
|
827 | |||
828 | if start is None: |
|
828 | if start is None: | |
829 | start = nullid |
|
829 | start = nullid | |
830 | if stop is None: |
|
830 | if stop is None: | |
831 | stop = [] |
|
831 | stop = [] | |
832 | stoprevs = set([self.rev(n) for n in stop]) |
|
832 | stoprevs = set([self.rev(n) for n in stop]) | |
833 | startrev = self.rev(start) |
|
833 | startrev = self.rev(start) | |
834 | reachable = set((startrev,)) |
|
834 | reachable = set((startrev,)) | |
835 | heads = set((startrev,)) |
|
835 | heads = set((startrev,)) | |
836 |
|
836 | |||
837 | parentrevs = self.parentrevs |
|
837 | parentrevs = self.parentrevs | |
838 | for r in self.revs(start=startrev + 1): |
|
838 | for r in self.revs(start=startrev + 1): | |
839 | for p in parentrevs(r): |
|
839 | for p in parentrevs(r): | |
840 | if p in reachable: |
|
840 | if p in reachable: | |
841 | if r not in stoprevs: |
|
841 | if r not in stoprevs: | |
842 | reachable.add(r) |
|
842 | reachable.add(r) | |
843 | heads.add(r) |
|
843 | heads.add(r) | |
844 | if p in heads and p not in stoprevs: |
|
844 | if p in heads and p not in stoprevs: | |
845 | heads.remove(p) |
|
845 | heads.remove(p) | |
846 |
|
846 | |||
847 | return [self.node(r) for r in heads] |
|
847 | return [self.node(r) for r in heads] | |
848 |
|
848 | |||
849 | def children(self, node): |
|
849 | def children(self, node): | |
850 | """find the children of a given node""" |
|
850 | """find the children of a given node""" | |
851 | c = [] |
|
851 | c = [] | |
852 | p = self.rev(node) |
|
852 | p = self.rev(node) | |
853 | for r in self.revs(start=p + 1): |
|
853 | for r in self.revs(start=p + 1): | |
854 | prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] |
|
854 | prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] | |
855 | if prevs: |
|
855 | if prevs: | |
856 | for pr in prevs: |
|
856 | for pr in prevs: | |
857 | if pr == p: |
|
857 | if pr == p: | |
858 | c.append(self.node(r)) |
|
858 | c.append(self.node(r)) | |
859 | elif p == nullrev: |
|
859 | elif p == nullrev: | |
860 | c.append(self.node(r)) |
|
860 | c.append(self.node(r)) | |
861 | return c |
|
861 | return c | |
862 |
|
862 | |||
863 | def descendant(self, start, end): |
|
863 | def descendant(self, start, end): | |
864 | if start == nullrev: |
|
864 | if start == nullrev: | |
865 | return True |
|
865 | return True | |
866 | for i in self.descendants([start]): |
|
866 | for i in self.descendants([start]): | |
867 | if i == end: |
|
867 | if i == end: | |
868 | return True |
|
868 | return True | |
869 | elif i > end: |
|
869 | elif i > end: | |
870 | break |
|
870 | break | |
871 | return False |
|
871 | return False | |
872 |
|
872 | |||
873 | def commonancestorsheads(self, a, b): |
|
873 | def commonancestorsheads(self, a, b): | |
874 | """calculate all the heads of the common ancestors of nodes a and b""" |
|
874 | """calculate all the heads of the common ancestors of nodes a and b""" | |
875 | a, b = self.rev(a), self.rev(b) |
|
875 | a, b = self.rev(a), self.rev(b) | |
876 | try: |
|
876 | try: | |
877 | ancs = self.index.commonancestorsheads(a, b) |
|
877 | ancs = self.index.commonancestorsheads(a, b) | |
878 | except (AttributeError, OverflowError): # C implementation failed |
|
878 | except (AttributeError, OverflowError): # C implementation failed | |
879 | ancs = ancestor.commonancestorsheads(self.parentrevs, a, b) |
|
879 | ancs = ancestor.commonancestorsheads(self.parentrevs, a, b) | |
880 | return map(self.node, ancs) |
|
880 | return map(self.node, ancs) | |
881 |
|
881 | |||
882 | def isancestor(self, a, b): |
|
882 | def isancestor(self, a, b): | |
883 | """return True if node a is an ancestor of node b |
|
883 | """return True if node a is an ancestor of node b | |
884 |
|
884 | |||
885 | The implementation of this is trivial but the use of |
|
885 | The implementation of this is trivial but the use of | |
886 | commonancestorsheads is not.""" |
|
886 | commonancestorsheads is not.""" | |
887 | return a in self.commonancestorsheads(a, b) |
|
887 | return a in self.commonancestorsheads(a, b) | |
888 |
|
888 | |||
889 | def ancestor(self, a, b): |
|
889 | def ancestor(self, a, b): | |
890 | """calculate the "best" common ancestor of nodes a and b""" |
|
890 | """calculate the "best" common ancestor of nodes a and b""" | |
891 |
|
891 | |||
892 | a, b = self.rev(a), self.rev(b) |
|
892 | a, b = self.rev(a), self.rev(b) | |
893 | try: |
|
893 | try: | |
894 | ancs = self.index.ancestors(a, b) |
|
894 | ancs = self.index.ancestors(a, b) | |
895 | except (AttributeError, OverflowError): |
|
895 | except (AttributeError, OverflowError): | |
896 | ancs = ancestor.ancestors(self.parentrevs, a, b) |
|
896 | ancs = ancestor.ancestors(self.parentrevs, a, b) | |
897 | if ancs: |
|
897 | if ancs: | |
898 | # choose a consistent winner when there's a tie |
|
898 | # choose a consistent winner when there's a tie | |
899 | return min(map(self.node, ancs)) |
|
899 | return min(map(self.node, ancs)) | |
900 | return nullid |
|
900 | return nullid | |
901 |
|
901 | |||
902 | def _match(self, id): |
|
902 | def _match(self, id): | |
903 | if isinstance(id, int): |
|
903 | if isinstance(id, int): | |
904 | # rev |
|
904 | # rev | |
905 | return self.node(id) |
|
905 | return self.node(id) | |
906 | if len(id) == 20: |
|
906 | if len(id) == 20: | |
907 | # possibly a binary node |
|
907 | # possibly a binary node | |
908 | # odds of a binary node being all hex in ASCII are 1 in 10**25 |
|
908 | # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
909 | try: |
|
909 | try: | |
910 | node = id |
|
910 | node = id | |
911 | self.rev(node) # quick search the index |
|
911 | self.rev(node) # quick search the index | |
912 | return node |
|
912 | return node | |
913 | except LookupError: |
|
913 | except LookupError: | |
914 | pass # may be partial hex id |
|
914 | pass # may be partial hex id | |
915 | try: |
|
915 | try: | |
916 | # str(rev) |
|
916 | # str(rev) | |
917 | rev = int(id) |
|
917 | rev = int(id) | |
918 | if str(rev) != id: |
|
918 | if str(rev) != id: | |
919 | raise ValueError |
|
919 | raise ValueError | |
920 | if rev < 0: |
|
920 | if rev < 0: | |
921 | rev = len(self) + rev |
|
921 | rev = len(self) + rev | |
922 | if rev < 0 or rev >= len(self): |
|
922 | if rev < 0 or rev >= len(self): | |
923 | raise ValueError |
|
923 | raise ValueError | |
924 | return self.node(rev) |
|
924 | return self.node(rev) | |
925 | except (ValueError, OverflowError): |
|
925 | except (ValueError, OverflowError): | |
926 | pass |
|
926 | pass | |
927 | if len(id) == 40: |
|
927 | if len(id) == 40: | |
928 | try: |
|
928 | try: | |
929 | # a full hex nodeid? |
|
929 | # a full hex nodeid? | |
930 | node = bin(id) |
|
930 | node = bin(id) | |
931 | self.rev(node) |
|
931 | self.rev(node) | |
932 | return node |
|
932 | return node | |
933 | except (TypeError, LookupError): |
|
933 | except (TypeError, LookupError): | |
934 | pass |
|
934 | pass | |
935 |
|
935 | |||
936 | def _partialmatch(self, id): |
|
936 | def _partialmatch(self, id): | |
937 | try: |
|
937 | try: | |
938 | n = self.index.partialmatch(id) |
|
938 | n = self.index.partialmatch(id) | |
939 | if n and self.hasnode(n): |
|
939 | if n and self.hasnode(n): | |
940 | return n |
|
940 | return n | |
941 | return None |
|
941 | return None | |
942 | except RevlogError: |
|
942 | except RevlogError: | |
943 | # parsers.c radix tree lookup gave multiple matches |
|
943 | # parsers.c radix tree lookup gave multiple matches | |
944 | # fall through to slow path that filters hidden revisions |
|
944 | # fall through to slow path that filters hidden revisions | |
945 | pass |
|
945 | pass | |
946 | except (AttributeError, ValueError): |
|
946 | except (AttributeError, ValueError): | |
947 | # we are pure python, or key was too short to search radix tree |
|
947 | # we are pure python, or key was too short to search radix tree | |
948 | pass |
|
948 | pass | |
949 |
|
949 | |||
950 | if id in self._pcache: |
|
950 | if id in self._pcache: | |
951 | return self._pcache[id] |
|
951 | return self._pcache[id] | |
952 |
|
952 | |||
953 | if len(id) < 40: |
|
953 | if len(id) < 40: | |
954 | try: |
|
954 | try: | |
955 | # hex(node)[:...] |
|
955 | # hex(node)[:...] | |
956 | l = len(id) // 2 # grab an even number of digits |
|
956 | l = len(id) // 2 # grab an even number of digits | |
957 | prefix = bin(id[:l * 2]) |
|
957 | prefix = bin(id[:l * 2]) | |
958 | nl = [e[7] for e in self.index if e[7].startswith(prefix)] |
|
958 | nl = [e[7] for e in self.index if e[7].startswith(prefix)] | |
959 | nl = [n for n in nl if hex(n).startswith(id) and |
|
959 | nl = [n for n in nl if hex(n).startswith(id) and | |
960 | self.hasnode(n)] |
|
960 | self.hasnode(n)] | |
961 | if len(nl) > 0: |
|
961 | if len(nl) > 0: | |
962 | if len(nl) == 1: |
|
962 | if len(nl) == 1: | |
963 | self._pcache[id] = nl[0] |
|
963 | self._pcache[id] = nl[0] | |
964 | return nl[0] |
|
964 | return nl[0] | |
965 | raise LookupError(id, self.indexfile, |
|
965 | raise LookupError(id, self.indexfile, | |
966 | _('ambiguous identifier')) |
|
966 | _('ambiguous identifier')) | |
967 | return None |
|
967 | return None | |
968 | except TypeError: |
|
968 | except TypeError: | |
969 | pass |
|
969 | pass | |
970 |
|
970 | |||
971 | def lookup(self, id): |
|
971 | def lookup(self, id): | |
972 | """locate a node based on: |
|
972 | """locate a node based on: | |
973 | - revision number or str(revision number) |
|
973 | - revision number or str(revision number) | |
974 | - nodeid or subset of hex nodeid |
|
974 | - nodeid or subset of hex nodeid | |
975 | """ |
|
975 | """ | |
976 | n = self._match(id) |
|
976 | n = self._match(id) | |
977 | if n is not None: |
|
977 | if n is not None: | |
978 | return n |
|
978 | return n | |
979 | n = self._partialmatch(id) |
|
979 | n = self._partialmatch(id) | |
980 | if n: |
|
980 | if n: | |
981 | return n |
|
981 | return n | |
982 |
|
982 | |||
983 | raise LookupError(id, self.indexfile, _('no match found')) |
|
983 | raise LookupError(id, self.indexfile, _('no match found')) | |
984 |
|
984 | |||
985 | def cmp(self, node, text): |
|
985 | def cmp(self, node, text): | |
986 | """compare text with a given file revision |
|
986 | """compare text with a given file revision | |
987 |
|
987 | |||
988 | returns True if text is different than what is stored. |
|
988 | returns True if text is different than what is stored. | |
989 | """ |
|
989 | """ | |
990 | p1, p2 = self.parents(node) |
|
990 | p1, p2 = self.parents(node) | |
991 | return hash(text, p1, p2) != node |
|
991 | return hash(text, p1, p2) != node | |
992 |
|
992 | |||
993 | def _addchunk(self, offset, data): |
|
993 | def _addchunk(self, offset, data): | |
994 | """Add a segment to the revlog cache. |
|
994 | """Add a segment to the revlog cache. | |
995 |
|
995 | |||
996 | Accepts an absolute offset and the data that is at that location. |
|
996 | Accepts an absolute offset and the data that is at that location. | |
997 | """ |
|
997 | """ | |
998 | o, d = self._chunkcache |
|
998 | o, d = self._chunkcache | |
999 | # try to add to existing cache |
|
999 | # try to add to existing cache | |
1000 | if o + len(d) == offset and len(d) + len(data) < _chunksize: |
|
1000 | if o + len(d) == offset and len(d) + len(data) < _chunksize: | |
1001 | self._chunkcache = o, d + data |
|
1001 | self._chunkcache = o, d + data | |
1002 | else: |
|
1002 | else: | |
1003 | self._chunkcache = offset, data |
|
1003 | self._chunkcache = offset, data | |
1004 |
|
1004 | |||
1005 | def _loadchunk(self, offset, length, df=None): |
|
1005 | def _loadchunk(self, offset, length, df=None): | |
1006 | """Load a segment of raw data from the revlog. |
|
1006 | """Load a segment of raw data from the revlog. | |
1007 |
|
1007 | |||
1008 | Accepts an absolute offset, length to read, and an optional existing |
|
1008 | Accepts an absolute offset, length to read, and an optional existing | |
1009 | file handle to read from. |
|
1009 | file handle to read from. | |
1010 |
|
1010 | |||
1011 | If an existing file handle is passed, it will be seeked and the |
|
1011 | If an existing file handle is passed, it will be seeked and the | |
1012 | original seek position will NOT be restored. |
|
1012 | original seek position will NOT be restored. | |
1013 |
|
1013 | |||
1014 | Returns a str or buffer of raw byte data. |
|
1014 | Returns a str or buffer of raw byte data. | |
1015 | """ |
|
1015 | """ | |
1016 | if df is not None: |
|
1016 | if df is not None: | |
1017 | closehandle = False |
|
1017 | closehandle = False | |
1018 | else: |
|
1018 | else: | |
1019 | if self._inline: |
|
1019 | if self._inline: | |
1020 | df = self.opener(self.indexfile) |
|
1020 | df = self.opener(self.indexfile) | |
1021 | else: |
|
1021 | else: | |
1022 | df = self.opener(self.datafile) |
|
1022 | df = self.opener(self.datafile) | |
1023 | closehandle = True |
|
1023 | closehandle = True | |
1024 |
|
1024 | |||
1025 | # Cache data both forward and backward around the requested |
|
1025 | # Cache data both forward and backward around the requested | |
1026 | # data, in a fixed size window. This helps speed up operations |
|
1026 | # data, in a fixed size window. This helps speed up operations | |
1027 | # involving reading the revlog backwards. |
|
1027 | # involving reading the revlog backwards. | |
1028 | cachesize = self._chunkcachesize |
|
1028 | cachesize = self._chunkcachesize | |
1029 | realoffset = offset & ~(cachesize - 1) |
|
1029 | realoffset = offset & ~(cachesize - 1) | |
1030 | reallength = (((offset + length + cachesize) & ~(cachesize - 1)) |
|
1030 | reallength = (((offset + length + cachesize) & ~(cachesize - 1)) | |
1031 | - realoffset) |
|
1031 | - realoffset) | |
1032 | df.seek(realoffset) |
|
1032 | df.seek(realoffset) | |
1033 | d = df.read(reallength) |
|
1033 | d = df.read(reallength) | |
1034 | if closehandle: |
|
1034 | if closehandle: | |
1035 | df.close() |
|
1035 | df.close() | |
1036 | self._addchunk(realoffset, d) |
|
1036 | self._addchunk(realoffset, d) | |
1037 | if offset != realoffset or reallength != length: |
|
1037 | if offset != realoffset or reallength != length: | |
1038 | return util.buffer(d, offset - realoffset, length) |
|
1038 | return util.buffer(d, offset - realoffset, length) | |
1039 | return d |
|
1039 | return d | |
1040 |
|
1040 | |||
1041 | def _getchunk(self, offset, length, df=None): |
|
1041 | def _getchunk(self, offset, length, df=None): | |
1042 | """Obtain a segment of raw data from the revlog. |
|
1042 | """Obtain a segment of raw data from the revlog. | |
1043 |
|
1043 | |||
1044 | Accepts an absolute offset, length of bytes to obtain, and an |
|
1044 | Accepts an absolute offset, length of bytes to obtain, and an | |
1045 | optional file handle to the already-opened revlog. If the file |
|
1045 | optional file handle to the already-opened revlog. If the file | |
1046 | handle is used, it's original seek position will not be preserved. |
|
1046 | handle is used, it's original seek position will not be preserved. | |
1047 |
|
1047 | |||
1048 | Requests for data may be returned from a cache. |
|
1048 | Requests for data may be returned from a cache. | |
1049 |
|
1049 | |||
1050 | Returns a str or a buffer instance of raw byte data. |
|
1050 | Returns a str or a buffer instance of raw byte data. | |
1051 | """ |
|
1051 | """ | |
1052 | o, d = self._chunkcache |
|
1052 | o, d = self._chunkcache | |
1053 | l = len(d) |
|
1053 | l = len(d) | |
1054 |
|
1054 | |||
1055 | # is it in the cache? |
|
1055 | # is it in the cache? | |
1056 | cachestart = offset - o |
|
1056 | cachestart = offset - o | |
1057 | cacheend = cachestart + length |
|
1057 | cacheend = cachestart + length | |
1058 | if cachestart >= 0 and cacheend <= l: |
|
1058 | if cachestart >= 0 and cacheend <= l: | |
1059 | if cachestart == 0 and cacheend == l: |
|
1059 | if cachestart == 0 and cacheend == l: | |
1060 | return d # avoid a copy |
|
1060 | return d # avoid a copy | |
1061 | return util.buffer(d, cachestart, cacheend - cachestart) |
|
1061 | return util.buffer(d, cachestart, cacheend - cachestart) | |
1062 |
|
1062 | |||
1063 | return self._loadchunk(offset, length, df=df) |
|
1063 | return self._loadchunk(offset, length, df=df) | |
1064 |
|
1064 | |||
1065 | def _chunkraw(self, startrev, endrev, df=None): |
|
1065 | def _chunkraw(self, startrev, endrev, df=None): | |
1066 | """Obtain a segment of raw data corresponding to a range of revisions. |
|
1066 | """Obtain a segment of raw data corresponding to a range of revisions. | |
1067 |
|
1067 | |||
1068 | Accepts the start and end revisions and an optional already-open |
|
1068 | Accepts the start and end revisions and an optional already-open | |
1069 | file handle to be used for reading. If the file handle is read, its |
|
1069 | file handle to be used for reading. If the file handle is read, its | |
1070 | seek position will not be preserved. |
|
1070 | seek position will not be preserved. | |
1071 |
|
1071 | |||
1072 | Requests for data may be satisfied by a cache. |
|
1072 | Requests for data may be satisfied by a cache. | |
1073 |
|
1073 | |||
1074 | Returns a str or a buffer instance of raw byte data. Callers will |
|
1074 | Returns a 2-tuple of (offset, data) for the requested range of | |
1075 | need to call ``self.start(rev)`` and ``self.length()`` to determine |
|
1075 | revisions. Offset is the integer offset from the beginning of the | |
1076 | where each revision's data begins and ends. |
|
1076 | revlog and data is a str or buffer of the raw byte data. | |
|
1077 | ||||
|
1078 | Callers will need to call ``self.start(rev)`` and ``self.length(rev)`` | |||
|
1079 | to determine where each revision's data begins and ends. | |||
1077 | """ |
|
1080 | """ | |
1078 | start = self.start(startrev) |
|
1081 | start = self.start(startrev) | |
1079 | end = self.end(endrev) |
|
1082 | end = self.end(endrev) | |
1080 | if self._inline: |
|
1083 | if self._inline: | |
1081 | start += (startrev + 1) * self._io.size |
|
1084 | start += (startrev + 1) * self._io.size | |
1082 | end += (endrev + 1) * self._io.size |
|
1085 | end += (endrev + 1) * self._io.size | |
1083 | length = end - start |
|
1086 | length = end - start | |
1084 | return self._getchunk(start, length, df=df) |
|
1087 | ||
|
1088 | return start, self._getchunk(start, length, df=df) | |||
1085 |
|
1089 | |||
1086 | def _chunk(self, rev, df=None): |
|
1090 | def _chunk(self, rev, df=None): | |
1087 | """Obtain a single decompressed chunk for a revision. |
|
1091 | """Obtain a single decompressed chunk for a revision. | |
1088 |
|
1092 | |||
1089 | Accepts an integer revision and an optional already-open file handle |
|
1093 | Accepts an integer revision and an optional already-open file handle | |
1090 | to be used for reading. If used, the seek position of the file will not |
|
1094 | to be used for reading. If used, the seek position of the file will not | |
1091 | be preserved. |
|
1095 | be preserved. | |
1092 |
|
1096 | |||
1093 | Returns a str holding uncompressed data for the requested revision. |
|
1097 | Returns a str holding uncompressed data for the requested revision. | |
1094 | """ |
|
1098 | """ | |
1095 | return decompress(self._chunkraw(rev, rev, df=df)) |
|
1099 | return decompress(self._chunkraw(rev, rev, df=df)[1]) | |
1096 |
|
1100 | |||
1097 | def _chunks(self, revs, df=None): |
|
1101 | def _chunks(self, revs, df=None): | |
1098 | """Obtain decompressed chunks for the specified revisions. |
|
1102 | """Obtain decompressed chunks for the specified revisions. | |
1099 |
|
1103 | |||
1100 | Accepts an iterable of numeric revisions that are assumed to be in |
|
1104 | Accepts an iterable of numeric revisions that are assumed to be in | |
1101 | ascending order. Also accepts an optional already-open file handle |
|
1105 | ascending order. Also accepts an optional already-open file handle | |
1102 | to be used for reading. If used, the seek position of the file will |
|
1106 | to be used for reading. If used, the seek position of the file will | |
1103 | not be preserved. |
|
1107 | not be preserved. | |
1104 |
|
1108 | |||
1105 | This function is similar to calling ``self._chunk()`` multiple times, |
|
1109 | This function is similar to calling ``self._chunk()`` multiple times, | |
1106 | but is faster. |
|
1110 | but is faster. | |
1107 |
|
1111 | |||
1108 | Returns a list with decompressed data for each requested revision. |
|
1112 | Returns a list with decompressed data for each requested revision. | |
1109 | """ |
|
1113 | """ | |
1110 | if not revs: |
|
1114 | if not revs: | |
1111 | return [] |
|
1115 | return [] | |
1112 | start = self.start |
|
1116 | start = self.start | |
1113 | length = self.length |
|
1117 | length = self.length | |
1114 | inline = self._inline |
|
1118 | inline = self._inline | |
1115 | iosize = self._io.size |
|
1119 | iosize = self._io.size | |
1116 | buffer = util.buffer |
|
1120 | buffer = util.buffer | |
1117 |
|
1121 | |||
1118 | l = [] |
|
1122 | l = [] | |
1119 | ladd = l.append |
|
1123 | ladd = l.append | |
1120 |
|
1124 | |||
1121 | # preload the cache |
|
1125 | # preload the cache | |
1122 | try: |
|
1126 | try: | |
1123 | while True: |
|
1127 | while True: | |
1124 | # ensure that the cache doesn't change out from under us |
|
1128 | # ensure that the cache doesn't change out from under us | |
1125 | _cache = self._chunkcache |
|
1129 | _cache = self._chunkcache | |
1126 | self._chunkraw(revs[0], revs[-1], df=df) |
|
1130 | self._chunkraw(revs[0], revs[-1], df=df)[1] | |
1127 | if _cache == self._chunkcache: |
|
1131 | if _cache == self._chunkcache: | |
1128 | break |
|
1132 | break | |
1129 | offset, data = _cache |
|
1133 | offset, data = _cache | |
1130 | except OverflowError: |
|
1134 | except OverflowError: | |
1131 | # issue4215 - we can't cache a run of chunks greater than |
|
1135 | # issue4215 - we can't cache a run of chunks greater than | |
1132 | # 2G on Windows |
|
1136 | # 2G on Windows | |
1133 | return [self._chunk(rev, df=df) for rev in revs] |
|
1137 | return [self._chunk(rev, df=df) for rev in revs] | |
1134 |
|
1138 | |||
1135 | for rev in revs: |
|
1139 | for rev in revs: | |
1136 | chunkstart = start(rev) |
|
1140 | chunkstart = start(rev) | |
1137 | if inline: |
|
1141 | if inline: | |
1138 | chunkstart += (rev + 1) * iosize |
|
1142 | chunkstart += (rev + 1) * iosize | |
1139 | chunklength = length(rev) |
|
1143 | chunklength = length(rev) | |
1140 | ladd(decompress(buffer(data, chunkstart - offset, chunklength))) |
|
1144 | ladd(decompress(buffer(data, chunkstart - offset, chunklength))) | |
1141 |
|
1145 | |||
1142 | return l |
|
1146 | return l | |
1143 |
|
1147 | |||
1144 | def _chunkclear(self): |
|
1148 | def _chunkclear(self): | |
1145 | """Clear the raw chunk cache.""" |
|
1149 | """Clear the raw chunk cache.""" | |
1146 | self._chunkcache = (0, '') |
|
1150 | self._chunkcache = (0, '') | |
1147 |
|
1151 | |||
1148 | def deltaparent(self, rev): |
|
1152 | def deltaparent(self, rev): | |
1149 | """return deltaparent of the given revision""" |
|
1153 | """return deltaparent of the given revision""" | |
1150 | base = self.index[rev][3] |
|
1154 | base = self.index[rev][3] | |
1151 | if base == rev: |
|
1155 | if base == rev: | |
1152 | return nullrev |
|
1156 | return nullrev | |
1153 | elif self._generaldelta: |
|
1157 | elif self._generaldelta: | |
1154 | return base |
|
1158 | return base | |
1155 | else: |
|
1159 | else: | |
1156 | return rev - 1 |
|
1160 | return rev - 1 | |
1157 |
|
1161 | |||
1158 | def revdiff(self, rev1, rev2): |
|
1162 | def revdiff(self, rev1, rev2): | |
1159 | """return or calculate a delta between two revisions""" |
|
1163 | """return or calculate a delta between two revisions""" | |
1160 | if rev1 != nullrev and self.deltaparent(rev2) == rev1: |
|
1164 | if rev1 != nullrev and self.deltaparent(rev2) == rev1: | |
1161 | return str(self._chunk(rev2)) |
|
1165 | return str(self._chunk(rev2)) | |
1162 |
|
1166 | |||
1163 | return mdiff.textdiff(self.revision(rev1), |
|
1167 | return mdiff.textdiff(self.revision(rev1), | |
1164 | self.revision(rev2)) |
|
1168 | self.revision(rev2)) | |
1165 |
|
1169 | |||
1166 | def revision(self, nodeorrev, _df=None): |
|
1170 | def revision(self, nodeorrev, _df=None): | |
1167 | """return an uncompressed revision of a given node or revision |
|
1171 | """return an uncompressed revision of a given node or revision | |
1168 | number. |
|
1172 | number. | |
1169 |
|
1173 | |||
1170 | _df is an existing file handle to read from. It is meant to only be |
|
1174 | _df is an existing file handle to read from. It is meant to only be | |
1171 | used internally. |
|
1175 | used internally. | |
1172 | """ |
|
1176 | """ | |
1173 | if isinstance(nodeorrev, int): |
|
1177 | if isinstance(nodeorrev, int): | |
1174 | rev = nodeorrev |
|
1178 | rev = nodeorrev | |
1175 | node = self.node(rev) |
|
1179 | node = self.node(rev) | |
1176 | else: |
|
1180 | else: | |
1177 | node = nodeorrev |
|
1181 | node = nodeorrev | |
1178 | rev = None |
|
1182 | rev = None | |
1179 |
|
1183 | |||
1180 | cachedrev = None |
|
1184 | cachedrev = None | |
1181 | if node == nullid: |
|
1185 | if node == nullid: | |
1182 | return "" |
|
1186 | return "" | |
1183 | if self._cache: |
|
1187 | if self._cache: | |
1184 | if self._cache[0] == node: |
|
1188 | if self._cache[0] == node: | |
1185 | return self._cache[2] |
|
1189 | return self._cache[2] | |
1186 | cachedrev = self._cache[1] |
|
1190 | cachedrev = self._cache[1] | |
1187 |
|
1191 | |||
1188 | # look up what we need to read |
|
1192 | # look up what we need to read | |
1189 | text = None |
|
1193 | text = None | |
1190 | if rev is None: |
|
1194 | if rev is None: | |
1191 | rev = self.rev(node) |
|
1195 | rev = self.rev(node) | |
1192 |
|
1196 | |||
1193 | # check rev flags |
|
1197 | # check rev flags | |
1194 | if self.flags(rev) & ~REVIDX_KNOWN_FLAGS: |
|
1198 | if self.flags(rev) & ~REVIDX_KNOWN_FLAGS: | |
1195 | raise RevlogError(_('incompatible revision flag %x') % |
|
1199 | raise RevlogError(_('incompatible revision flag %x') % | |
1196 | (self.flags(rev) & ~REVIDX_KNOWN_FLAGS)) |
|
1200 | (self.flags(rev) & ~REVIDX_KNOWN_FLAGS)) | |
1197 |
|
1201 | |||
1198 | chain, stopped = self._deltachain(rev, stoprev=cachedrev) |
|
1202 | chain, stopped = self._deltachain(rev, stoprev=cachedrev) | |
1199 | if stopped: |
|
1203 | if stopped: | |
1200 | text = self._cache[2] |
|
1204 | text = self._cache[2] | |
1201 |
|
1205 | |||
1202 | # drop cache to save memory |
|
1206 | # drop cache to save memory | |
1203 | self._cache = None |
|
1207 | self._cache = None | |
1204 |
|
1208 | |||
1205 | bins = self._chunks(chain, df=_df) |
|
1209 | bins = self._chunks(chain, df=_df) | |
1206 | if text is None: |
|
1210 | if text is None: | |
1207 | text = str(bins[0]) |
|
1211 | text = str(bins[0]) | |
1208 | bins = bins[1:] |
|
1212 | bins = bins[1:] | |
1209 |
|
1213 | |||
1210 | text = mdiff.patches(text, bins) |
|
1214 | text = mdiff.patches(text, bins) | |
1211 |
|
1215 | |||
1212 | text = self._checkhash(text, node, rev) |
|
1216 | text = self._checkhash(text, node, rev) | |
1213 |
|
1217 | |||
1214 | self._cache = (node, rev, text) |
|
1218 | self._cache = (node, rev, text) | |
1215 | return text |
|
1219 | return text | |
1216 |
|
1220 | |||
1217 | def hash(self, text, p1, p2): |
|
1221 | def hash(self, text, p1, p2): | |
1218 | """Compute a node hash. |
|
1222 | """Compute a node hash. | |
1219 |
|
1223 | |||
1220 | Available as a function so that subclasses can replace the hash |
|
1224 | Available as a function so that subclasses can replace the hash | |
1221 | as needed. |
|
1225 | as needed. | |
1222 | """ |
|
1226 | """ | |
1223 | return hash(text, p1, p2) |
|
1227 | return hash(text, p1, p2) | |
1224 |
|
1228 | |||
1225 | def _checkhash(self, text, node, rev): |
|
1229 | def _checkhash(self, text, node, rev): | |
1226 | p1, p2 = self.parents(node) |
|
1230 | p1, p2 = self.parents(node) | |
1227 | self.checkhash(text, p1, p2, node, rev) |
|
1231 | self.checkhash(text, p1, p2, node, rev) | |
1228 | return text |
|
1232 | return text | |
1229 |
|
1233 | |||
1230 | def checkhash(self, text, p1, p2, node, rev=None): |
|
1234 | def checkhash(self, text, p1, p2, node, rev=None): | |
1231 | if node != self.hash(text, p1, p2): |
|
1235 | if node != self.hash(text, p1, p2): | |
1232 | revornode = rev |
|
1236 | revornode = rev | |
1233 | if revornode is None: |
|
1237 | if revornode is None: | |
1234 | revornode = templatefilters.short(hex(node)) |
|
1238 | revornode = templatefilters.short(hex(node)) | |
1235 | raise RevlogError(_("integrity check failed on %s:%s") |
|
1239 | raise RevlogError(_("integrity check failed on %s:%s") | |
1236 | % (self.indexfile, revornode)) |
|
1240 | % (self.indexfile, revornode)) | |
1237 |
|
1241 | |||
1238 | def checkinlinesize(self, tr, fp=None): |
|
1242 | def checkinlinesize(self, tr, fp=None): | |
1239 | """Check if the revlog is too big for inline and convert if so. |
|
1243 | """Check if the revlog is too big for inline and convert if so. | |
1240 |
|
1244 | |||
1241 | This should be called after revisions are added to the revlog. If the |
|
1245 | This should be called after revisions are added to the revlog. If the | |
1242 | revlog has grown too large to be an inline revlog, it will convert it |
|
1246 | revlog has grown too large to be an inline revlog, it will convert it | |
1243 | to use multiple index and data files. |
|
1247 | to use multiple index and data files. | |
1244 | """ |
|
1248 | """ | |
1245 | if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: |
|
1249 | if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: | |
1246 | return |
|
1250 | return | |
1247 |
|
1251 | |||
1248 | trinfo = tr.find(self.indexfile) |
|
1252 | trinfo = tr.find(self.indexfile) | |
1249 | if trinfo is None: |
|
1253 | if trinfo is None: | |
1250 | raise RevlogError(_("%s not found in the transaction") |
|
1254 | raise RevlogError(_("%s not found in the transaction") | |
1251 | % self.indexfile) |
|
1255 | % self.indexfile) | |
1252 |
|
1256 | |||
1253 | trindex = trinfo[2] |
|
1257 | trindex = trinfo[2] | |
1254 | if trindex is not None: |
|
1258 | if trindex is not None: | |
1255 | dataoff = self.start(trindex) |
|
1259 | dataoff = self.start(trindex) | |
1256 | else: |
|
1260 | else: | |
1257 | # revlog was stripped at start of transaction, use all leftover data |
|
1261 | # revlog was stripped at start of transaction, use all leftover data | |
1258 | trindex = len(self) - 1 |
|
1262 | trindex = len(self) - 1 | |
1259 | dataoff = self.end(-2) |
|
1263 | dataoff = self.end(-2) | |
1260 |
|
1264 | |||
1261 | tr.add(self.datafile, dataoff) |
|
1265 | tr.add(self.datafile, dataoff) | |
1262 |
|
1266 | |||
1263 | if fp: |
|
1267 | if fp: | |
1264 | fp.flush() |
|
1268 | fp.flush() | |
1265 | fp.close() |
|
1269 | fp.close() | |
1266 |
|
1270 | |||
1267 | df = self.opener(self.datafile, 'w') |
|
1271 | df = self.opener(self.datafile, 'w') | |
1268 | try: |
|
1272 | try: | |
1269 | for r in self: |
|
1273 | for r in self: | |
1270 | df.write(self._chunkraw(r, r)) |
|
1274 | df.write(self._chunkraw(r, r)[1]) | |
1271 | finally: |
|
1275 | finally: | |
1272 | df.close() |
|
1276 | df.close() | |
1273 |
|
1277 | |||
1274 | fp = self.opener(self.indexfile, 'w', atomictemp=True) |
|
1278 | fp = self.opener(self.indexfile, 'w', atomictemp=True) | |
1275 | self.version &= ~(REVLOGNGINLINEDATA) |
|
1279 | self.version &= ~(REVLOGNGINLINEDATA) | |
1276 | self._inline = False |
|
1280 | self._inline = False | |
1277 | for i in self: |
|
1281 | for i in self: | |
1278 | e = self._io.packentry(self.index[i], self.node, self.version, i) |
|
1282 | e = self._io.packentry(self.index[i], self.node, self.version, i) | |
1279 | fp.write(e) |
|
1283 | fp.write(e) | |
1280 |
|
1284 | |||
1281 | # if we don't call close, the temp file will never replace the |
|
1285 | # if we don't call close, the temp file will never replace the | |
1282 | # real index |
|
1286 | # real index | |
1283 | fp.close() |
|
1287 | fp.close() | |
1284 |
|
1288 | |||
1285 | tr.replace(self.indexfile, trindex * self._io.size) |
|
1289 | tr.replace(self.indexfile, trindex * self._io.size) | |
1286 | self._chunkclear() |
|
1290 | self._chunkclear() | |
1287 |
|
1291 | |||
1288 | def addrevision(self, text, transaction, link, p1, p2, cachedelta=None, |
|
1292 | def addrevision(self, text, transaction, link, p1, p2, cachedelta=None, | |
1289 | node=None): |
|
1293 | node=None): | |
1290 | """add a revision to the log |
|
1294 | """add a revision to the log | |
1291 |
|
1295 | |||
1292 | text - the revision data to add |
|
1296 | text - the revision data to add | |
1293 | transaction - the transaction object used for rollback |
|
1297 | transaction - the transaction object used for rollback | |
1294 | link - the linkrev data to add |
|
1298 | link - the linkrev data to add | |
1295 | p1, p2 - the parent nodeids of the revision |
|
1299 | p1, p2 - the parent nodeids of the revision | |
1296 | cachedelta - an optional precomputed delta |
|
1300 | cachedelta - an optional precomputed delta | |
1297 | node - nodeid of revision; typically node is not specified, and it is |
|
1301 | node - nodeid of revision; typically node is not specified, and it is | |
1298 | computed by default as hash(text, p1, p2), however subclasses might |
|
1302 | computed by default as hash(text, p1, p2), however subclasses might | |
1299 | use different hashing method (and override checkhash() in such case) |
|
1303 | use different hashing method (and override checkhash() in such case) | |
1300 | """ |
|
1304 | """ | |
1301 | if link == nullrev: |
|
1305 | if link == nullrev: | |
1302 | raise RevlogError(_("attempted to add linkrev -1 to %s") |
|
1306 | raise RevlogError(_("attempted to add linkrev -1 to %s") | |
1303 | % self.indexfile) |
|
1307 | % self.indexfile) | |
1304 |
|
1308 | |||
1305 | if len(text) > _maxentrysize: |
|
1309 | if len(text) > _maxentrysize: | |
1306 | raise RevlogError( |
|
1310 | raise RevlogError( | |
1307 | _("%s: size of %d bytes exceeds maximum revlog storage of 2GiB") |
|
1311 | _("%s: size of %d bytes exceeds maximum revlog storage of 2GiB") | |
1308 | % (self.indexfile, len(text))) |
|
1312 | % (self.indexfile, len(text))) | |
1309 |
|
1313 | |||
1310 | node = node or self.hash(text, p1, p2) |
|
1314 | node = node or self.hash(text, p1, p2) | |
1311 | if node in self.nodemap: |
|
1315 | if node in self.nodemap: | |
1312 | return node |
|
1316 | return node | |
1313 |
|
1317 | |||
1314 | dfh = None |
|
1318 | dfh = None | |
1315 | if not self._inline: |
|
1319 | if not self._inline: | |
1316 | dfh = self.opener(self.datafile, "a+") |
|
1320 | dfh = self.opener(self.datafile, "a+") | |
1317 | ifh = self.opener(self.indexfile, "a+") |
|
1321 | ifh = self.opener(self.indexfile, "a+") | |
1318 | try: |
|
1322 | try: | |
1319 | return self._addrevision(node, text, transaction, link, p1, p2, |
|
1323 | return self._addrevision(node, text, transaction, link, p1, p2, | |
1320 | REVIDX_DEFAULT_FLAGS, cachedelta, ifh, dfh) |
|
1324 | REVIDX_DEFAULT_FLAGS, cachedelta, ifh, dfh) | |
1321 | finally: |
|
1325 | finally: | |
1322 | if dfh: |
|
1326 | if dfh: | |
1323 | dfh.close() |
|
1327 | dfh.close() | |
1324 | ifh.close() |
|
1328 | ifh.close() | |
1325 |
|
1329 | |||
1326 | def compress(self, text): |
|
1330 | def compress(self, text): | |
1327 | """ generate a possibly-compressed representation of text """ |
|
1331 | """ generate a possibly-compressed representation of text """ | |
1328 | if not text: |
|
1332 | if not text: | |
1329 | return ("", text) |
|
1333 | return ("", text) | |
1330 | l = len(text) |
|
1334 | l = len(text) | |
1331 | bin = None |
|
1335 | bin = None | |
1332 | if l < 44: |
|
1336 | if l < 44: | |
1333 | pass |
|
1337 | pass | |
1334 | elif l > 1000000: |
|
1338 | elif l > 1000000: | |
1335 | # zlib makes an internal copy, thus doubling memory usage for |
|
1339 | # zlib makes an internal copy, thus doubling memory usage for | |
1336 | # large files, so lets do this in pieces |
|
1340 | # large files, so lets do this in pieces | |
1337 | z = zlib.compressobj() |
|
1341 | z = zlib.compressobj() | |
1338 | p = [] |
|
1342 | p = [] | |
1339 | pos = 0 |
|
1343 | pos = 0 | |
1340 | while pos < l: |
|
1344 | while pos < l: | |
1341 | pos2 = pos + 2**20 |
|
1345 | pos2 = pos + 2**20 | |
1342 | p.append(z.compress(text[pos:pos2])) |
|
1346 | p.append(z.compress(text[pos:pos2])) | |
1343 | pos = pos2 |
|
1347 | pos = pos2 | |
1344 | p.append(z.flush()) |
|
1348 | p.append(z.flush()) | |
1345 | if sum(map(len, p)) < l: |
|
1349 | if sum(map(len, p)) < l: | |
1346 | bin = "".join(p) |
|
1350 | bin = "".join(p) | |
1347 | else: |
|
1351 | else: | |
1348 | bin = _compress(text) |
|
1352 | bin = _compress(text) | |
1349 | if bin is None or len(bin) > l: |
|
1353 | if bin is None or len(bin) > l: | |
1350 | if text[0] == '\0': |
|
1354 | if text[0] == '\0': | |
1351 | return ("", text) |
|
1355 | return ("", text) | |
1352 | return ('u', text) |
|
1356 | return ('u', text) | |
1353 | return ("", bin) |
|
1357 | return ("", bin) | |
1354 |
|
1358 | |||
1355 | def _isgooddelta(self, d, textlen): |
|
1359 | def _isgooddelta(self, d, textlen): | |
1356 | """Returns True if the given delta is good. Good means that it is within |
|
1360 | """Returns True if the given delta is good. Good means that it is within | |
1357 | the disk span, disk size, and chain length bounds that we know to be |
|
1361 | the disk span, disk size, and chain length bounds that we know to be | |
1358 | performant.""" |
|
1362 | performant.""" | |
1359 | if d is None: |
|
1363 | if d is None: | |
1360 | return False |
|
1364 | return False | |
1361 |
|
1365 | |||
1362 | # - 'dist' is the distance from the base revision -- bounding it limits |
|
1366 | # - 'dist' is the distance from the base revision -- bounding it limits | |
1363 | # the amount of I/O we need to do. |
|
1367 | # the amount of I/O we need to do. | |
1364 | # - 'compresseddeltalen' is the sum of the total size of deltas we need |
|
1368 | # - 'compresseddeltalen' is the sum of the total size of deltas we need | |
1365 | # to apply -- bounding it limits the amount of CPU we consume. |
|
1369 | # to apply -- bounding it limits the amount of CPU we consume. | |
1366 | dist, l, data, base, chainbase, chainlen, compresseddeltalen = d |
|
1370 | dist, l, data, base, chainbase, chainlen, compresseddeltalen = d | |
1367 | if (dist > textlen * 4 or l > textlen or |
|
1371 | if (dist > textlen * 4 or l > textlen or | |
1368 | compresseddeltalen > textlen * 2 or |
|
1372 | compresseddeltalen > textlen * 2 or | |
1369 | (self._maxchainlen and chainlen > self._maxchainlen)): |
|
1373 | (self._maxchainlen and chainlen > self._maxchainlen)): | |
1370 | return False |
|
1374 | return False | |
1371 |
|
1375 | |||
1372 | return True |
|
1376 | return True | |
1373 |
|
1377 | |||
1374 | def _addrevision(self, node, text, transaction, link, p1, p2, flags, |
|
1378 | def _addrevision(self, node, text, transaction, link, p1, p2, flags, | |
1375 | cachedelta, ifh, dfh, alwayscache=False): |
|
1379 | cachedelta, ifh, dfh, alwayscache=False): | |
1376 | """internal function to add revisions to the log |
|
1380 | """internal function to add revisions to the log | |
1377 |
|
1381 | |||
1378 | see addrevision for argument descriptions. |
|
1382 | see addrevision for argument descriptions. | |
1379 | invariants: |
|
1383 | invariants: | |
1380 | - text is optional (can be None); if not set, cachedelta must be set. |
|
1384 | - text is optional (can be None); if not set, cachedelta must be set. | |
1381 | if both are set, they must correspond to each other. |
|
1385 | if both are set, they must correspond to each other. | |
1382 | """ |
|
1386 | """ | |
1383 | btext = [text] |
|
1387 | btext = [text] | |
1384 | def buildtext(): |
|
1388 | def buildtext(): | |
1385 | if btext[0] is not None: |
|
1389 | if btext[0] is not None: | |
1386 | return btext[0] |
|
1390 | return btext[0] | |
1387 | baserev = cachedelta[0] |
|
1391 | baserev = cachedelta[0] | |
1388 | delta = cachedelta[1] |
|
1392 | delta = cachedelta[1] | |
1389 | # special case deltas which replace entire base; no need to decode |
|
1393 | # special case deltas which replace entire base; no need to decode | |
1390 | # base revision. this neatly avoids censored bases, which throw when |
|
1394 | # base revision. this neatly avoids censored bases, which throw when | |
1391 | # they're decoded. |
|
1395 | # they're decoded. | |
1392 | hlen = struct.calcsize(">lll") |
|
1396 | hlen = struct.calcsize(">lll") | |
1393 | if delta[:hlen] == mdiff.replacediffheader(self.rawsize(baserev), |
|
1397 | if delta[:hlen] == mdiff.replacediffheader(self.rawsize(baserev), | |
1394 | len(delta) - hlen): |
|
1398 | len(delta) - hlen): | |
1395 | btext[0] = delta[hlen:] |
|
1399 | btext[0] = delta[hlen:] | |
1396 | else: |
|
1400 | else: | |
1397 | if self._inline: |
|
1401 | if self._inline: | |
1398 | fh = ifh |
|
1402 | fh = ifh | |
1399 | else: |
|
1403 | else: | |
1400 | fh = dfh |
|
1404 | fh = dfh | |
1401 | basetext = self.revision(self.node(baserev), _df=fh) |
|
1405 | basetext = self.revision(self.node(baserev), _df=fh) | |
1402 | btext[0] = mdiff.patch(basetext, delta) |
|
1406 | btext[0] = mdiff.patch(basetext, delta) | |
1403 | try: |
|
1407 | try: | |
1404 | self.checkhash(btext[0], p1, p2, node) |
|
1408 | self.checkhash(btext[0], p1, p2, node) | |
1405 | if flags & REVIDX_ISCENSORED: |
|
1409 | if flags & REVIDX_ISCENSORED: | |
1406 | raise RevlogError(_('node %s is not censored') % node) |
|
1410 | raise RevlogError(_('node %s is not censored') % node) | |
1407 | except CensoredNodeError: |
|
1411 | except CensoredNodeError: | |
1408 | # must pass the censored index flag to add censored revisions |
|
1412 | # must pass the censored index flag to add censored revisions | |
1409 | if not flags & REVIDX_ISCENSORED: |
|
1413 | if not flags & REVIDX_ISCENSORED: | |
1410 | raise |
|
1414 | raise | |
1411 | return btext[0] |
|
1415 | return btext[0] | |
1412 |
|
1416 | |||
1413 | def builddelta(rev): |
|
1417 | def builddelta(rev): | |
1414 | # can we use the cached delta? |
|
1418 | # can we use the cached delta? | |
1415 | if cachedelta and cachedelta[0] == rev: |
|
1419 | if cachedelta and cachedelta[0] == rev: | |
1416 | delta = cachedelta[1] |
|
1420 | delta = cachedelta[1] | |
1417 | else: |
|
1421 | else: | |
1418 | t = buildtext() |
|
1422 | t = buildtext() | |
1419 | if self.iscensored(rev): |
|
1423 | if self.iscensored(rev): | |
1420 | # deltas based on a censored revision must replace the |
|
1424 | # deltas based on a censored revision must replace the | |
1421 | # full content in one patch, so delta works everywhere |
|
1425 | # full content in one patch, so delta works everywhere | |
1422 | header = mdiff.replacediffheader(self.rawsize(rev), len(t)) |
|
1426 | header = mdiff.replacediffheader(self.rawsize(rev), len(t)) | |
1423 | delta = header + t |
|
1427 | delta = header + t | |
1424 | else: |
|
1428 | else: | |
1425 | if self._inline: |
|
1429 | if self._inline: | |
1426 | fh = ifh |
|
1430 | fh = ifh | |
1427 | else: |
|
1431 | else: | |
1428 | fh = dfh |
|
1432 | fh = dfh | |
1429 | ptext = self.revision(self.node(rev), _df=fh) |
|
1433 | ptext = self.revision(self.node(rev), _df=fh) | |
1430 | delta = mdiff.textdiff(ptext, t) |
|
1434 | delta = mdiff.textdiff(ptext, t) | |
1431 | data = self.compress(delta) |
|
1435 | data = self.compress(delta) | |
1432 | l = len(data[1]) + len(data[0]) |
|
1436 | l = len(data[1]) + len(data[0]) | |
1433 | if basecache[0] == rev: |
|
1437 | if basecache[0] == rev: | |
1434 | chainbase = basecache[1] |
|
1438 | chainbase = basecache[1] | |
1435 | else: |
|
1439 | else: | |
1436 | chainbase = self.chainbase(rev) |
|
1440 | chainbase = self.chainbase(rev) | |
1437 | dist = l + offset - self.start(chainbase) |
|
1441 | dist = l + offset - self.start(chainbase) | |
1438 | if self._generaldelta: |
|
1442 | if self._generaldelta: | |
1439 | base = rev |
|
1443 | base = rev | |
1440 | else: |
|
1444 | else: | |
1441 | base = chainbase |
|
1445 | base = chainbase | |
1442 | chainlen, compresseddeltalen = self._chaininfo(rev) |
|
1446 | chainlen, compresseddeltalen = self._chaininfo(rev) | |
1443 | chainlen += 1 |
|
1447 | chainlen += 1 | |
1444 | compresseddeltalen += l |
|
1448 | compresseddeltalen += l | |
1445 | return dist, l, data, base, chainbase, chainlen, compresseddeltalen |
|
1449 | return dist, l, data, base, chainbase, chainlen, compresseddeltalen | |
1446 |
|
1450 | |||
1447 | curr = len(self) |
|
1451 | curr = len(self) | |
1448 | prev = curr - 1 |
|
1452 | prev = curr - 1 | |
1449 | base = chainbase = curr |
|
1453 | base = chainbase = curr | |
1450 | offset = self.end(prev) |
|
1454 | offset = self.end(prev) | |
1451 | delta = None |
|
1455 | delta = None | |
1452 | if self._basecache is None: |
|
1456 | if self._basecache is None: | |
1453 | self._basecache = (prev, self.chainbase(prev)) |
|
1457 | self._basecache = (prev, self.chainbase(prev)) | |
1454 | basecache = self._basecache |
|
1458 | basecache = self._basecache | |
1455 | p1r, p2r = self.rev(p1), self.rev(p2) |
|
1459 | p1r, p2r = self.rev(p1), self.rev(p2) | |
1456 |
|
1460 | |||
1457 | # full versions are inserted when the needed deltas |
|
1461 | # full versions are inserted when the needed deltas | |
1458 | # become comparable to the uncompressed text |
|
1462 | # become comparable to the uncompressed text | |
1459 | if text is None: |
|
1463 | if text is None: | |
1460 | textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]), |
|
1464 | textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]), | |
1461 | cachedelta[1]) |
|
1465 | cachedelta[1]) | |
1462 | else: |
|
1466 | else: | |
1463 | textlen = len(text) |
|
1467 | textlen = len(text) | |
1464 |
|
1468 | |||
1465 | # should we try to build a delta? |
|
1469 | # should we try to build a delta? | |
1466 | if prev != nullrev: |
|
1470 | if prev != nullrev: | |
1467 | tested = set() |
|
1471 | tested = set() | |
1468 | if cachedelta and self._generaldelta and self._lazydeltabase: |
|
1472 | if cachedelta and self._generaldelta and self._lazydeltabase: | |
1469 | # Assume what we received from the server is a good choice |
|
1473 | # Assume what we received from the server is a good choice | |
1470 | # build delta will reuse the cache |
|
1474 | # build delta will reuse the cache | |
1471 | candidatedelta = builddelta(cachedelta[0]) |
|
1475 | candidatedelta = builddelta(cachedelta[0]) | |
1472 | tested.add(cachedelta[0]) |
|
1476 | tested.add(cachedelta[0]) | |
1473 | if self._isgooddelta(candidatedelta, textlen): |
|
1477 | if self._isgooddelta(candidatedelta, textlen): | |
1474 | delta = candidatedelta |
|
1478 | delta = candidatedelta | |
1475 | if delta is None and self._generaldelta: |
|
1479 | if delta is None and self._generaldelta: | |
1476 | # exclude already lazy tested base if any |
|
1480 | # exclude already lazy tested base if any | |
1477 | parents = [p for p in (p1r, p2r) |
|
1481 | parents = [p for p in (p1r, p2r) | |
1478 | if p != nullrev and p not in tested] |
|
1482 | if p != nullrev and p not in tested] | |
1479 | if parents and not self._aggressivemergedeltas: |
|
1483 | if parents and not self._aggressivemergedeltas: | |
1480 | # Pick whichever parent is closer to us (to minimize the |
|
1484 | # Pick whichever parent is closer to us (to minimize the | |
1481 | # chance of having to build a fulltext). |
|
1485 | # chance of having to build a fulltext). | |
1482 | parents = [max(parents)] |
|
1486 | parents = [max(parents)] | |
1483 | tested.update(parents) |
|
1487 | tested.update(parents) | |
1484 | pdeltas = [] |
|
1488 | pdeltas = [] | |
1485 | for p in parents: |
|
1489 | for p in parents: | |
1486 | pd = builddelta(p) |
|
1490 | pd = builddelta(p) | |
1487 | if self._isgooddelta(pd, textlen): |
|
1491 | if self._isgooddelta(pd, textlen): | |
1488 | pdeltas.append(pd) |
|
1492 | pdeltas.append(pd) | |
1489 | if pdeltas: |
|
1493 | if pdeltas: | |
1490 | delta = min(pdeltas, key=lambda x: x[1]) |
|
1494 | delta = min(pdeltas, key=lambda x: x[1]) | |
1491 | if delta is None and prev not in tested: |
|
1495 | if delta is None and prev not in tested: | |
1492 | # other approach failed try against prev to hopefully save us a |
|
1496 | # other approach failed try against prev to hopefully save us a | |
1493 | # fulltext. |
|
1497 | # fulltext. | |
1494 | candidatedelta = builddelta(prev) |
|
1498 | candidatedelta = builddelta(prev) | |
1495 | if self._isgooddelta(candidatedelta, textlen): |
|
1499 | if self._isgooddelta(candidatedelta, textlen): | |
1496 | delta = candidatedelta |
|
1500 | delta = candidatedelta | |
1497 | if delta is not None: |
|
1501 | if delta is not None: | |
1498 | dist, l, data, base, chainbase, chainlen, compresseddeltalen = delta |
|
1502 | dist, l, data, base, chainbase, chainlen, compresseddeltalen = delta | |
1499 | else: |
|
1503 | else: | |
1500 | text = buildtext() |
|
1504 | text = buildtext() | |
1501 | data = self.compress(text) |
|
1505 | data = self.compress(text) | |
1502 | l = len(data[1]) + len(data[0]) |
|
1506 | l = len(data[1]) + len(data[0]) | |
1503 | base = chainbase = curr |
|
1507 | base = chainbase = curr | |
1504 |
|
1508 | |||
1505 | e = (offset_type(offset, flags), l, textlen, |
|
1509 | e = (offset_type(offset, flags), l, textlen, | |
1506 | base, link, p1r, p2r, node) |
|
1510 | base, link, p1r, p2r, node) | |
1507 | self.index.insert(-1, e) |
|
1511 | self.index.insert(-1, e) | |
1508 | self.nodemap[node] = curr |
|
1512 | self.nodemap[node] = curr | |
1509 |
|
1513 | |||
1510 | entry = self._io.packentry(e, self.node, self.version, curr) |
|
1514 | entry = self._io.packentry(e, self.node, self.version, curr) | |
1511 | self._writeentry(transaction, ifh, dfh, entry, data, link, offset) |
|
1515 | self._writeentry(transaction, ifh, dfh, entry, data, link, offset) | |
1512 |
|
1516 | |||
1513 | if alwayscache and text is None: |
|
1517 | if alwayscache and text is None: | |
1514 | text = buildtext() |
|
1518 | text = buildtext() | |
1515 |
|
1519 | |||
1516 | if type(text) == str: # only accept immutable objects |
|
1520 | if type(text) == str: # only accept immutable objects | |
1517 | self._cache = (node, curr, text) |
|
1521 | self._cache = (node, curr, text) | |
1518 | self._basecache = (curr, chainbase) |
|
1522 | self._basecache = (curr, chainbase) | |
1519 | return node |
|
1523 | return node | |
1520 |
|
1524 | |||
1521 | def _writeentry(self, transaction, ifh, dfh, entry, data, link, offset): |
|
1525 | def _writeentry(self, transaction, ifh, dfh, entry, data, link, offset): | |
1522 | # Files opened in a+ mode have inconsistent behavior on various |
|
1526 | # Files opened in a+ mode have inconsistent behavior on various | |
1523 | # platforms. Windows requires that a file positioning call be made |
|
1527 | # platforms. Windows requires that a file positioning call be made | |
1524 | # when the file handle transitions between reads and writes. See |
|
1528 | # when the file handle transitions between reads and writes. See | |
1525 | # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other |
|
1529 | # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other | |
1526 | # platforms, Python or the platform itself can be buggy. Some versions |
|
1530 | # platforms, Python or the platform itself can be buggy. Some versions | |
1527 | # of Solaris have been observed to not append at the end of the file |
|
1531 | # of Solaris have been observed to not append at the end of the file | |
1528 | # if the file was seeked to before the end. See issue4943 for more. |
|
1532 | # if the file was seeked to before the end. See issue4943 for more. | |
1529 | # |
|
1533 | # | |
1530 | # We work around this issue by inserting a seek() before writing. |
|
1534 | # We work around this issue by inserting a seek() before writing. | |
1531 | # Note: This is likely not necessary on Python 3. |
|
1535 | # Note: This is likely not necessary on Python 3. | |
1532 | ifh.seek(0, os.SEEK_END) |
|
1536 | ifh.seek(0, os.SEEK_END) | |
1533 | if dfh: |
|
1537 | if dfh: | |
1534 | dfh.seek(0, os.SEEK_END) |
|
1538 | dfh.seek(0, os.SEEK_END) | |
1535 |
|
1539 | |||
1536 | curr = len(self) - 1 |
|
1540 | curr = len(self) - 1 | |
1537 | if not self._inline: |
|
1541 | if not self._inline: | |
1538 | transaction.add(self.datafile, offset) |
|
1542 | transaction.add(self.datafile, offset) | |
1539 | transaction.add(self.indexfile, curr * len(entry)) |
|
1543 | transaction.add(self.indexfile, curr * len(entry)) | |
1540 | if data[0]: |
|
1544 | if data[0]: | |
1541 | dfh.write(data[0]) |
|
1545 | dfh.write(data[0]) | |
1542 | dfh.write(data[1]) |
|
1546 | dfh.write(data[1]) | |
1543 | ifh.write(entry) |
|
1547 | ifh.write(entry) | |
1544 | else: |
|
1548 | else: | |
1545 | offset += curr * self._io.size |
|
1549 | offset += curr * self._io.size | |
1546 | transaction.add(self.indexfile, offset, curr) |
|
1550 | transaction.add(self.indexfile, offset, curr) | |
1547 | ifh.write(entry) |
|
1551 | ifh.write(entry) | |
1548 | ifh.write(data[0]) |
|
1552 | ifh.write(data[0]) | |
1549 | ifh.write(data[1]) |
|
1553 | ifh.write(data[1]) | |
1550 | self.checkinlinesize(transaction, ifh) |
|
1554 | self.checkinlinesize(transaction, ifh) | |
1551 |
|
1555 | |||
1552 | def addgroup(self, cg, linkmapper, transaction, addrevisioncb=None): |
|
1556 | def addgroup(self, cg, linkmapper, transaction, addrevisioncb=None): | |
1553 | """ |
|
1557 | """ | |
1554 | add a delta group |
|
1558 | add a delta group | |
1555 |
|
1559 | |||
1556 | given a set of deltas, add them to the revision log. the |
|
1560 | given a set of deltas, add them to the revision log. the | |
1557 | first delta is against its parent, which should be in our |
|
1561 | first delta is against its parent, which should be in our | |
1558 | log, the rest are against the previous delta. |
|
1562 | log, the rest are against the previous delta. | |
1559 |
|
1563 | |||
1560 | If ``addrevisioncb`` is defined, it will be called with arguments of |
|
1564 | If ``addrevisioncb`` is defined, it will be called with arguments of | |
1561 | this revlog and the node that was added. |
|
1565 | this revlog and the node that was added. | |
1562 | """ |
|
1566 | """ | |
1563 |
|
1567 | |||
1564 | # track the base of the current delta log |
|
1568 | # track the base of the current delta log | |
1565 | content = [] |
|
1569 | content = [] | |
1566 | node = None |
|
1570 | node = None | |
1567 |
|
1571 | |||
1568 | r = len(self) |
|
1572 | r = len(self) | |
1569 | end = 0 |
|
1573 | end = 0 | |
1570 | if r: |
|
1574 | if r: | |
1571 | end = self.end(r - 1) |
|
1575 | end = self.end(r - 1) | |
1572 | ifh = self.opener(self.indexfile, "a+") |
|
1576 | ifh = self.opener(self.indexfile, "a+") | |
1573 | isize = r * self._io.size |
|
1577 | isize = r * self._io.size | |
1574 | if self._inline: |
|
1578 | if self._inline: | |
1575 | transaction.add(self.indexfile, end + isize, r) |
|
1579 | transaction.add(self.indexfile, end + isize, r) | |
1576 | dfh = None |
|
1580 | dfh = None | |
1577 | else: |
|
1581 | else: | |
1578 | transaction.add(self.indexfile, isize, r) |
|
1582 | transaction.add(self.indexfile, isize, r) | |
1579 | transaction.add(self.datafile, end) |
|
1583 | transaction.add(self.datafile, end) | |
1580 | dfh = self.opener(self.datafile, "a+") |
|
1584 | dfh = self.opener(self.datafile, "a+") | |
1581 | def flush(): |
|
1585 | def flush(): | |
1582 | if dfh: |
|
1586 | if dfh: | |
1583 | dfh.flush() |
|
1587 | dfh.flush() | |
1584 | ifh.flush() |
|
1588 | ifh.flush() | |
1585 | try: |
|
1589 | try: | |
1586 | # loop through our set of deltas |
|
1590 | # loop through our set of deltas | |
1587 | chain = None |
|
1591 | chain = None | |
1588 | while True: |
|
1592 | while True: | |
1589 | chunkdata = cg.deltachunk(chain) |
|
1593 | chunkdata = cg.deltachunk(chain) | |
1590 | if not chunkdata: |
|
1594 | if not chunkdata: | |
1591 | break |
|
1595 | break | |
1592 | node = chunkdata['node'] |
|
1596 | node = chunkdata['node'] | |
1593 | p1 = chunkdata['p1'] |
|
1597 | p1 = chunkdata['p1'] | |
1594 | p2 = chunkdata['p2'] |
|
1598 | p2 = chunkdata['p2'] | |
1595 | cs = chunkdata['cs'] |
|
1599 | cs = chunkdata['cs'] | |
1596 | deltabase = chunkdata['deltabase'] |
|
1600 | deltabase = chunkdata['deltabase'] | |
1597 | delta = chunkdata['delta'] |
|
1601 | delta = chunkdata['delta'] | |
1598 | flags = chunkdata['flags'] or REVIDX_DEFAULT_FLAGS |
|
1602 | flags = chunkdata['flags'] or REVIDX_DEFAULT_FLAGS | |
1599 |
|
1603 | |||
1600 | content.append(node) |
|
1604 | content.append(node) | |
1601 |
|
1605 | |||
1602 | link = linkmapper(cs) |
|
1606 | link = linkmapper(cs) | |
1603 | if node in self.nodemap: |
|
1607 | if node in self.nodemap: | |
1604 | # this can happen if two branches make the same change |
|
1608 | # this can happen if two branches make the same change | |
1605 | chain = node |
|
1609 | chain = node | |
1606 | continue |
|
1610 | continue | |
1607 |
|
1611 | |||
1608 | for p in (p1, p2): |
|
1612 | for p in (p1, p2): | |
1609 | if p not in self.nodemap: |
|
1613 | if p not in self.nodemap: | |
1610 | raise LookupError(p, self.indexfile, |
|
1614 | raise LookupError(p, self.indexfile, | |
1611 | _('unknown parent')) |
|
1615 | _('unknown parent')) | |
1612 |
|
1616 | |||
1613 | if deltabase not in self.nodemap: |
|
1617 | if deltabase not in self.nodemap: | |
1614 | raise LookupError(deltabase, self.indexfile, |
|
1618 | raise LookupError(deltabase, self.indexfile, | |
1615 | _('unknown delta base')) |
|
1619 | _('unknown delta base')) | |
1616 |
|
1620 | |||
1617 | baserev = self.rev(deltabase) |
|
1621 | baserev = self.rev(deltabase) | |
1618 |
|
1622 | |||
1619 | if baserev != nullrev and self.iscensored(baserev): |
|
1623 | if baserev != nullrev and self.iscensored(baserev): | |
1620 | # if base is censored, delta must be full replacement in a |
|
1624 | # if base is censored, delta must be full replacement in a | |
1621 | # single patch operation |
|
1625 | # single patch operation | |
1622 | hlen = struct.calcsize(">lll") |
|
1626 | hlen = struct.calcsize(">lll") | |
1623 | oldlen = self.rawsize(baserev) |
|
1627 | oldlen = self.rawsize(baserev) | |
1624 | newlen = len(delta) - hlen |
|
1628 | newlen = len(delta) - hlen | |
1625 | if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen): |
|
1629 | if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen): | |
1626 | raise error.CensoredBaseError(self.indexfile, |
|
1630 | raise error.CensoredBaseError(self.indexfile, | |
1627 | self.node(baserev)) |
|
1631 | self.node(baserev)) | |
1628 |
|
1632 | |||
1629 | if not flags and self._peek_iscensored(baserev, delta, flush): |
|
1633 | if not flags and self._peek_iscensored(baserev, delta, flush): | |
1630 | flags |= REVIDX_ISCENSORED |
|
1634 | flags |= REVIDX_ISCENSORED | |
1631 |
|
1635 | |||
1632 | # We assume consumers of addrevisioncb will want to retrieve |
|
1636 | # We assume consumers of addrevisioncb will want to retrieve | |
1633 | # the added revision, which will require a call to |
|
1637 | # the added revision, which will require a call to | |
1634 | # revision(). revision() will fast path if there is a cache |
|
1638 | # revision(). revision() will fast path if there is a cache | |
1635 | # hit. So, we tell _addrevision() to always cache in this case. |
|
1639 | # hit. So, we tell _addrevision() to always cache in this case. | |
1636 | chain = self._addrevision(node, None, transaction, link, |
|
1640 | chain = self._addrevision(node, None, transaction, link, | |
1637 | p1, p2, flags, (baserev, delta), |
|
1641 | p1, p2, flags, (baserev, delta), | |
1638 | ifh, dfh, |
|
1642 | ifh, dfh, | |
1639 | alwayscache=bool(addrevisioncb)) |
|
1643 | alwayscache=bool(addrevisioncb)) | |
1640 |
|
1644 | |||
1641 | if addrevisioncb: |
|
1645 | if addrevisioncb: | |
1642 | addrevisioncb(self, chain) |
|
1646 | addrevisioncb(self, chain) | |
1643 |
|
1647 | |||
1644 | if not dfh and not self._inline: |
|
1648 | if not dfh and not self._inline: | |
1645 | # addrevision switched from inline to conventional |
|
1649 | # addrevision switched from inline to conventional | |
1646 | # reopen the index |
|
1650 | # reopen the index | |
1647 | ifh.close() |
|
1651 | ifh.close() | |
1648 | dfh = self.opener(self.datafile, "a+") |
|
1652 | dfh = self.opener(self.datafile, "a+") | |
1649 | ifh = self.opener(self.indexfile, "a+") |
|
1653 | ifh = self.opener(self.indexfile, "a+") | |
1650 | finally: |
|
1654 | finally: | |
1651 | if dfh: |
|
1655 | if dfh: | |
1652 | dfh.close() |
|
1656 | dfh.close() | |
1653 | ifh.close() |
|
1657 | ifh.close() | |
1654 |
|
1658 | |||
1655 | return content |
|
1659 | return content | |
1656 |
|
1660 | |||
1657 | def iscensored(self, rev): |
|
1661 | def iscensored(self, rev): | |
1658 | """Check if a file revision is censored.""" |
|
1662 | """Check if a file revision is censored.""" | |
1659 | return False |
|
1663 | return False | |
1660 |
|
1664 | |||
1661 | def _peek_iscensored(self, baserev, delta, flush): |
|
1665 | def _peek_iscensored(self, baserev, delta, flush): | |
1662 | """Quickly check if a delta produces a censored revision.""" |
|
1666 | """Quickly check if a delta produces a censored revision.""" | |
1663 | return False |
|
1667 | return False | |
1664 |
|
1668 | |||
1665 | def getstrippoint(self, minlink): |
|
1669 | def getstrippoint(self, minlink): | |
1666 | """find the minimum rev that must be stripped to strip the linkrev |
|
1670 | """find the minimum rev that must be stripped to strip the linkrev | |
1667 |
|
1671 | |||
1668 | Returns a tuple containing the minimum rev and a set of all revs that |
|
1672 | Returns a tuple containing the minimum rev and a set of all revs that | |
1669 | have linkrevs that will be broken by this strip. |
|
1673 | have linkrevs that will be broken by this strip. | |
1670 | """ |
|
1674 | """ | |
1671 | brokenrevs = set() |
|
1675 | brokenrevs = set() | |
1672 | strippoint = len(self) |
|
1676 | strippoint = len(self) | |
1673 |
|
1677 | |||
1674 | heads = {} |
|
1678 | heads = {} | |
1675 | futurelargelinkrevs = set() |
|
1679 | futurelargelinkrevs = set() | |
1676 | for head in self.headrevs(): |
|
1680 | for head in self.headrevs(): | |
1677 | headlinkrev = self.linkrev(head) |
|
1681 | headlinkrev = self.linkrev(head) | |
1678 | heads[head] = headlinkrev |
|
1682 | heads[head] = headlinkrev | |
1679 | if headlinkrev >= minlink: |
|
1683 | if headlinkrev >= minlink: | |
1680 | futurelargelinkrevs.add(headlinkrev) |
|
1684 | futurelargelinkrevs.add(headlinkrev) | |
1681 |
|
1685 | |||
1682 | # This algorithm involves walking down the rev graph, starting at the |
|
1686 | # This algorithm involves walking down the rev graph, starting at the | |
1683 | # heads. Since the revs are topologically sorted according to linkrev, |
|
1687 | # heads. Since the revs are topologically sorted according to linkrev, | |
1684 | # once all head linkrevs are below the minlink, we know there are |
|
1688 | # once all head linkrevs are below the minlink, we know there are | |
1685 | # no more revs that could have a linkrev greater than minlink. |
|
1689 | # no more revs that could have a linkrev greater than minlink. | |
1686 | # So we can stop walking. |
|
1690 | # So we can stop walking. | |
1687 | while futurelargelinkrevs: |
|
1691 | while futurelargelinkrevs: | |
1688 | strippoint -= 1 |
|
1692 | strippoint -= 1 | |
1689 | linkrev = heads.pop(strippoint) |
|
1693 | linkrev = heads.pop(strippoint) | |
1690 |
|
1694 | |||
1691 | if linkrev < minlink: |
|
1695 | if linkrev < minlink: | |
1692 | brokenrevs.add(strippoint) |
|
1696 | brokenrevs.add(strippoint) | |
1693 | else: |
|
1697 | else: | |
1694 | futurelargelinkrevs.remove(linkrev) |
|
1698 | futurelargelinkrevs.remove(linkrev) | |
1695 |
|
1699 | |||
1696 | for p in self.parentrevs(strippoint): |
|
1700 | for p in self.parentrevs(strippoint): | |
1697 | if p != nullrev: |
|
1701 | if p != nullrev: | |
1698 | plinkrev = self.linkrev(p) |
|
1702 | plinkrev = self.linkrev(p) | |
1699 | heads[p] = plinkrev |
|
1703 | heads[p] = plinkrev | |
1700 | if plinkrev >= minlink: |
|
1704 | if plinkrev >= minlink: | |
1701 | futurelargelinkrevs.add(plinkrev) |
|
1705 | futurelargelinkrevs.add(plinkrev) | |
1702 |
|
1706 | |||
1703 | return strippoint, brokenrevs |
|
1707 | return strippoint, brokenrevs | |
1704 |
|
1708 | |||
1705 | def strip(self, minlink, transaction): |
|
1709 | def strip(self, minlink, transaction): | |
1706 | """truncate the revlog on the first revision with a linkrev >= minlink |
|
1710 | """truncate the revlog on the first revision with a linkrev >= minlink | |
1707 |
|
1711 | |||
1708 | This function is called when we're stripping revision minlink and |
|
1712 | This function is called when we're stripping revision minlink and | |
1709 | its descendants from the repository. |
|
1713 | its descendants from the repository. | |
1710 |
|
1714 | |||
1711 | We have to remove all revisions with linkrev >= minlink, because |
|
1715 | We have to remove all revisions with linkrev >= minlink, because | |
1712 | the equivalent changelog revisions will be renumbered after the |
|
1716 | the equivalent changelog revisions will be renumbered after the | |
1713 | strip. |
|
1717 | strip. | |
1714 |
|
1718 | |||
1715 | So we truncate the revlog on the first of these revisions, and |
|
1719 | So we truncate the revlog on the first of these revisions, and | |
1716 | trust that the caller has saved the revisions that shouldn't be |
|
1720 | trust that the caller has saved the revisions that shouldn't be | |
1717 | removed and that it'll re-add them after this truncation. |
|
1721 | removed and that it'll re-add them after this truncation. | |
1718 | """ |
|
1722 | """ | |
1719 | if len(self) == 0: |
|
1723 | if len(self) == 0: | |
1720 | return |
|
1724 | return | |
1721 |
|
1725 | |||
1722 | rev, _ = self.getstrippoint(minlink) |
|
1726 | rev, _ = self.getstrippoint(minlink) | |
1723 | if rev == len(self): |
|
1727 | if rev == len(self): | |
1724 | return |
|
1728 | return | |
1725 |
|
1729 | |||
1726 | # first truncate the files on disk |
|
1730 | # first truncate the files on disk | |
1727 | end = self.start(rev) |
|
1731 | end = self.start(rev) | |
1728 | if not self._inline: |
|
1732 | if not self._inline: | |
1729 | transaction.add(self.datafile, end) |
|
1733 | transaction.add(self.datafile, end) | |
1730 | end = rev * self._io.size |
|
1734 | end = rev * self._io.size | |
1731 | else: |
|
1735 | else: | |
1732 | end += rev * self._io.size |
|
1736 | end += rev * self._io.size | |
1733 |
|
1737 | |||
1734 | transaction.add(self.indexfile, end) |
|
1738 | transaction.add(self.indexfile, end) | |
1735 |
|
1739 | |||
1736 | # then reset internal state in memory to forget those revisions |
|
1740 | # then reset internal state in memory to forget those revisions | |
1737 | self._cache = None |
|
1741 | self._cache = None | |
1738 | self._chaininfocache = {} |
|
1742 | self._chaininfocache = {} | |
1739 | self._chunkclear() |
|
1743 | self._chunkclear() | |
1740 | for x in xrange(rev, len(self)): |
|
1744 | for x in xrange(rev, len(self)): | |
1741 | del self.nodemap[self.node(x)] |
|
1745 | del self.nodemap[self.node(x)] | |
1742 |
|
1746 | |||
1743 | del self.index[rev:-1] |
|
1747 | del self.index[rev:-1] | |
1744 |
|
1748 | |||
1745 | def checksize(self): |
|
1749 | def checksize(self): | |
1746 | expected = 0 |
|
1750 | expected = 0 | |
1747 | if len(self): |
|
1751 | if len(self): | |
1748 | expected = max(0, self.end(len(self) - 1)) |
|
1752 | expected = max(0, self.end(len(self) - 1)) | |
1749 |
|
1753 | |||
1750 | try: |
|
1754 | try: | |
1751 | f = self.opener(self.datafile) |
|
1755 | f = self.opener(self.datafile) | |
1752 | f.seek(0, 2) |
|
1756 | f.seek(0, 2) | |
1753 | actual = f.tell() |
|
1757 | actual = f.tell() | |
1754 | f.close() |
|
1758 | f.close() | |
1755 | dd = actual - expected |
|
1759 | dd = actual - expected | |
1756 | except IOError as inst: |
|
1760 | except IOError as inst: | |
1757 | if inst.errno != errno.ENOENT: |
|
1761 | if inst.errno != errno.ENOENT: | |
1758 | raise |
|
1762 | raise | |
1759 | dd = 0 |
|
1763 | dd = 0 | |
1760 |
|
1764 | |||
1761 | try: |
|
1765 | try: | |
1762 | f = self.opener(self.indexfile) |
|
1766 | f = self.opener(self.indexfile) | |
1763 | f.seek(0, 2) |
|
1767 | f.seek(0, 2) | |
1764 | actual = f.tell() |
|
1768 | actual = f.tell() | |
1765 | f.close() |
|
1769 | f.close() | |
1766 | s = self._io.size |
|
1770 | s = self._io.size | |
1767 | i = max(0, actual // s) |
|
1771 | i = max(0, actual // s) | |
1768 | di = actual - (i * s) |
|
1772 | di = actual - (i * s) | |
1769 | if self._inline: |
|
1773 | if self._inline: | |
1770 | databytes = 0 |
|
1774 | databytes = 0 | |
1771 | for r in self: |
|
1775 | for r in self: | |
1772 | databytes += max(0, self.length(r)) |
|
1776 | databytes += max(0, self.length(r)) | |
1773 | dd = 0 |
|
1777 | dd = 0 | |
1774 | di = actual - len(self) * s - databytes |
|
1778 | di = actual - len(self) * s - databytes | |
1775 | except IOError as inst: |
|
1779 | except IOError as inst: | |
1776 | if inst.errno != errno.ENOENT: |
|
1780 | if inst.errno != errno.ENOENT: | |
1777 | raise |
|
1781 | raise | |
1778 | di = 0 |
|
1782 | di = 0 | |
1779 |
|
1783 | |||
1780 | return (dd, di) |
|
1784 | return (dd, di) | |
1781 |
|
1785 | |||
1782 | def files(self): |
|
1786 | def files(self): | |
1783 | res = [self.indexfile] |
|
1787 | res = [self.indexfile] | |
1784 | if not self._inline: |
|
1788 | if not self._inline: | |
1785 | res.append(self.datafile) |
|
1789 | res.append(self.datafile) | |
1786 | return res |
|
1790 | return res |
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