##// END OF EJS Templates
fncache: remove the rewriting logic...
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1 # store.py - repository store handling for Mercurial
1 # store.py - repository store handling for Mercurial
2 #
2 #
3 # Copyright 2008 Matt Mackall <mpm@selenic.com>
3 # Copyright 2008 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 from i18n import _
8 from i18n import _
9 import scmutil, util, parsers
9 import scmutil, util, parsers
10 import os, stat, errno
10 import os, stat, errno
11
11
12 _sha = util.sha1
12 _sha = util.sha1
13
13
14 # This avoids a collision between a file named foo and a dir named
14 # This avoids a collision between a file named foo and a dir named
15 # foo.i or foo.d
15 # foo.i or foo.d
16 def _encodedir(path):
16 def _encodedir(path):
17 '''
17 '''
18 >>> _encodedir('data/foo.i')
18 >>> _encodedir('data/foo.i')
19 'data/foo.i'
19 'data/foo.i'
20 >>> _encodedir('data/foo.i/bla.i')
20 >>> _encodedir('data/foo.i/bla.i')
21 'data/foo.i.hg/bla.i'
21 'data/foo.i.hg/bla.i'
22 >>> _encodedir('data/foo.i.hg/bla.i')
22 >>> _encodedir('data/foo.i.hg/bla.i')
23 'data/foo.i.hg.hg/bla.i'
23 'data/foo.i.hg.hg/bla.i'
24 >>> _encodedir('data/foo.i\\ndata/foo.i/bla.i\\ndata/foo.i.hg/bla.i\\n')
24 >>> _encodedir('data/foo.i\\ndata/foo.i/bla.i\\ndata/foo.i.hg/bla.i\\n')
25 'data/foo.i\\ndata/foo.i.hg/bla.i\\ndata/foo.i.hg.hg/bla.i\\n'
25 'data/foo.i\\ndata/foo.i.hg/bla.i\\ndata/foo.i.hg.hg/bla.i\\n'
26 '''
26 '''
27 return (path
27 return (path
28 .replace(".hg/", ".hg.hg/")
28 .replace(".hg/", ".hg.hg/")
29 .replace(".i/", ".i.hg/")
29 .replace(".i/", ".i.hg/")
30 .replace(".d/", ".d.hg/"))
30 .replace(".d/", ".d.hg/"))
31
31
32 encodedir = getattr(parsers, 'encodedir', _encodedir)
32 encodedir = getattr(parsers, 'encodedir', _encodedir)
33
33
34 def decodedir(path):
34 def decodedir(path):
35 '''
35 '''
36 >>> decodedir('data/foo.i')
36 >>> decodedir('data/foo.i')
37 'data/foo.i'
37 'data/foo.i'
38 >>> decodedir('data/foo.i.hg/bla.i')
38 >>> decodedir('data/foo.i.hg/bla.i')
39 'data/foo.i/bla.i'
39 'data/foo.i/bla.i'
40 >>> decodedir('data/foo.i.hg.hg/bla.i')
40 >>> decodedir('data/foo.i.hg.hg/bla.i')
41 'data/foo.i.hg/bla.i'
41 'data/foo.i.hg/bla.i'
42 '''
42 '''
43 if ".hg/" not in path:
43 if ".hg/" not in path:
44 return path
44 return path
45 return (path
45 return (path
46 .replace(".d.hg/", ".d/")
46 .replace(".d.hg/", ".d/")
47 .replace(".i.hg/", ".i/")
47 .replace(".i.hg/", ".i/")
48 .replace(".hg.hg/", ".hg/"))
48 .replace(".hg.hg/", ".hg/"))
49
49
50 def _buildencodefun():
50 def _buildencodefun():
51 '''
51 '''
52 >>> enc, dec = _buildencodefun()
52 >>> enc, dec = _buildencodefun()
53
53
54 >>> enc('nothing/special.txt')
54 >>> enc('nothing/special.txt')
55 'nothing/special.txt'
55 'nothing/special.txt'
56 >>> dec('nothing/special.txt')
56 >>> dec('nothing/special.txt')
57 'nothing/special.txt'
57 'nothing/special.txt'
58
58
59 >>> enc('HELLO')
59 >>> enc('HELLO')
60 '_h_e_l_l_o'
60 '_h_e_l_l_o'
61 >>> dec('_h_e_l_l_o')
61 >>> dec('_h_e_l_l_o')
62 'HELLO'
62 'HELLO'
63
63
64 >>> enc('hello:world?')
64 >>> enc('hello:world?')
65 'hello~3aworld~3f'
65 'hello~3aworld~3f'
66 >>> dec('hello~3aworld~3f')
66 >>> dec('hello~3aworld~3f')
67 'hello:world?'
67 'hello:world?'
68
68
69 >>> enc('the\x07quick\xADshot')
69 >>> enc('the\x07quick\xADshot')
70 'the~07quick~adshot'
70 'the~07quick~adshot'
71 >>> dec('the~07quick~adshot')
71 >>> dec('the~07quick~adshot')
72 'the\\x07quick\\xadshot'
72 'the\\x07quick\\xadshot'
73 '''
73 '''
74 e = '_'
74 e = '_'
75 winreserved = [ord(x) for x in '\\:*?"<>|']
75 winreserved = [ord(x) for x in '\\:*?"<>|']
76 cmap = dict([(chr(x), chr(x)) for x in xrange(127)])
76 cmap = dict([(chr(x), chr(x)) for x in xrange(127)])
77 for x in (range(32) + range(126, 256) + winreserved):
77 for x in (range(32) + range(126, 256) + winreserved):
78 cmap[chr(x)] = "~%02x" % x
78 cmap[chr(x)] = "~%02x" % x
79 for x in range(ord("A"), ord("Z") + 1) + [ord(e)]:
79 for x in range(ord("A"), ord("Z") + 1) + [ord(e)]:
80 cmap[chr(x)] = e + chr(x).lower()
80 cmap[chr(x)] = e + chr(x).lower()
81 dmap = {}
81 dmap = {}
82 for k, v in cmap.iteritems():
82 for k, v in cmap.iteritems():
83 dmap[v] = k
83 dmap[v] = k
84 def decode(s):
84 def decode(s):
85 i = 0
85 i = 0
86 while i < len(s):
86 while i < len(s):
87 for l in xrange(1, 4):
87 for l in xrange(1, 4):
88 try:
88 try:
89 yield dmap[s[i:i + l]]
89 yield dmap[s[i:i + l]]
90 i += l
90 i += l
91 break
91 break
92 except KeyError:
92 except KeyError:
93 pass
93 pass
94 else:
94 else:
95 raise KeyError
95 raise KeyError
96 return (lambda s: ''.join([cmap[c] for c in s]),
96 return (lambda s: ''.join([cmap[c] for c in s]),
97 lambda s: ''.join(list(decode(s))))
97 lambda s: ''.join(list(decode(s))))
98
98
99 _encodefname, _decodefname = _buildencodefun()
99 _encodefname, _decodefname = _buildencodefun()
100
100
101 def encodefilename(s):
101 def encodefilename(s):
102 '''
102 '''
103 >>> encodefilename('foo.i/bar.d/bla.hg/hi:world?/HELLO')
103 >>> encodefilename('foo.i/bar.d/bla.hg/hi:world?/HELLO')
104 'foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o'
104 'foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o'
105 '''
105 '''
106 return _encodefname(encodedir(s))
106 return _encodefname(encodedir(s))
107
107
108 def decodefilename(s):
108 def decodefilename(s):
109 '''
109 '''
110 >>> decodefilename('foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o')
110 >>> decodefilename('foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o')
111 'foo.i/bar.d/bla.hg/hi:world?/HELLO'
111 'foo.i/bar.d/bla.hg/hi:world?/HELLO'
112 '''
112 '''
113 return decodedir(_decodefname(s))
113 return decodedir(_decodefname(s))
114
114
115 def _buildlowerencodefun():
115 def _buildlowerencodefun():
116 '''
116 '''
117 >>> f = _buildlowerencodefun()
117 >>> f = _buildlowerencodefun()
118 >>> f('nothing/special.txt')
118 >>> f('nothing/special.txt')
119 'nothing/special.txt'
119 'nothing/special.txt'
120 >>> f('HELLO')
120 >>> f('HELLO')
121 'hello'
121 'hello'
122 >>> f('hello:world?')
122 >>> f('hello:world?')
123 'hello~3aworld~3f'
123 'hello~3aworld~3f'
124 >>> f('the\x07quick\xADshot')
124 >>> f('the\x07quick\xADshot')
125 'the~07quick~adshot'
125 'the~07quick~adshot'
126 '''
126 '''
127 winreserved = [ord(x) for x in '\\:*?"<>|']
127 winreserved = [ord(x) for x in '\\:*?"<>|']
128 cmap = dict([(chr(x), chr(x)) for x in xrange(127)])
128 cmap = dict([(chr(x), chr(x)) for x in xrange(127)])
129 for x in (range(32) + range(126, 256) + winreserved):
129 for x in (range(32) + range(126, 256) + winreserved):
130 cmap[chr(x)] = "~%02x" % x
130 cmap[chr(x)] = "~%02x" % x
131 for x in range(ord("A"), ord("Z") + 1):
131 for x in range(ord("A"), ord("Z") + 1):
132 cmap[chr(x)] = chr(x).lower()
132 cmap[chr(x)] = chr(x).lower()
133 return lambda s: "".join([cmap[c] for c in s])
133 return lambda s: "".join([cmap[c] for c in s])
134
134
135 lowerencode = getattr(parsers, 'lowerencode', None) or _buildlowerencodefun()
135 lowerencode = getattr(parsers, 'lowerencode', None) or _buildlowerencodefun()
136
136
137 # Windows reserved names: con, prn, aux, nul, com1..com9, lpt1..lpt9
137 # Windows reserved names: con, prn, aux, nul, com1..com9, lpt1..lpt9
138 _winres3 = ('aux', 'con', 'prn', 'nul') # length 3
138 _winres3 = ('aux', 'con', 'prn', 'nul') # length 3
139 _winres4 = ('com', 'lpt') # length 4 (with trailing 1..9)
139 _winres4 = ('com', 'lpt') # length 4 (with trailing 1..9)
140 def _auxencode(path, dotencode):
140 def _auxencode(path, dotencode):
141 '''
141 '''
142 Encodes filenames containing names reserved by Windows or which end in
142 Encodes filenames containing names reserved by Windows or which end in
143 period or space. Does not touch other single reserved characters c.
143 period or space. Does not touch other single reserved characters c.
144 Specifically, c in '\\:*?"<>|' or ord(c) <= 31 are *not* encoded here.
144 Specifically, c in '\\:*?"<>|' or ord(c) <= 31 are *not* encoded here.
145 Additionally encodes space or period at the beginning, if dotencode is
145 Additionally encodes space or period at the beginning, if dotencode is
146 True. Parameter path is assumed to be all lowercase.
146 True. Parameter path is assumed to be all lowercase.
147 A segment only needs encoding if a reserved name appears as a
147 A segment only needs encoding if a reserved name appears as a
148 basename (e.g. "aux", "aux.foo"). A directory or file named "foo.aux"
148 basename (e.g. "aux", "aux.foo"). A directory or file named "foo.aux"
149 doesn't need encoding.
149 doesn't need encoding.
150
150
151 >>> s = '.foo/aux.txt/txt.aux/con/prn/nul/foo.'
151 >>> s = '.foo/aux.txt/txt.aux/con/prn/nul/foo.'
152 >>> _auxencode(s.split('/'), True)
152 >>> _auxencode(s.split('/'), True)
153 ['~2efoo', 'au~78.txt', 'txt.aux', 'co~6e', 'pr~6e', 'nu~6c', 'foo~2e']
153 ['~2efoo', 'au~78.txt', 'txt.aux', 'co~6e', 'pr~6e', 'nu~6c', 'foo~2e']
154 >>> s = '.com1com2/lpt9.lpt4.lpt1/conprn/com0/lpt0/foo.'
154 >>> s = '.com1com2/lpt9.lpt4.lpt1/conprn/com0/lpt0/foo.'
155 >>> _auxencode(s.split('/'), False)
155 >>> _auxencode(s.split('/'), False)
156 ['.com1com2', 'lp~749.lpt4.lpt1', 'conprn', 'com0', 'lpt0', 'foo~2e']
156 ['.com1com2', 'lp~749.lpt4.lpt1', 'conprn', 'com0', 'lpt0', 'foo~2e']
157 >>> _auxencode(['foo. '], True)
157 >>> _auxencode(['foo. '], True)
158 ['foo.~20']
158 ['foo.~20']
159 >>> _auxencode([' .foo'], True)
159 >>> _auxencode([' .foo'], True)
160 ['~20.foo']
160 ['~20.foo']
161 '''
161 '''
162 for i, n in enumerate(path):
162 for i, n in enumerate(path):
163 if not n:
163 if not n:
164 continue
164 continue
165 if dotencode and n[0] in '. ':
165 if dotencode and n[0] in '. ':
166 n = "~%02x" % ord(n[0]) + n[1:]
166 n = "~%02x" % ord(n[0]) + n[1:]
167 path[i] = n
167 path[i] = n
168 else:
168 else:
169 l = n.find('.')
169 l = n.find('.')
170 if l == -1:
170 if l == -1:
171 l = len(n)
171 l = len(n)
172 if ((l == 3 and n[:3] in _winres3) or
172 if ((l == 3 and n[:3] in _winres3) or
173 (l == 4 and n[3] <= '9' and n[3] >= '1'
173 (l == 4 and n[3] <= '9' and n[3] >= '1'
174 and n[:3] in _winres4)):
174 and n[:3] in _winres4)):
175 # encode third letter ('aux' -> 'au~78')
175 # encode third letter ('aux' -> 'au~78')
176 ec = "~%02x" % ord(n[2])
176 ec = "~%02x" % ord(n[2])
177 n = n[0:2] + ec + n[3:]
177 n = n[0:2] + ec + n[3:]
178 path[i] = n
178 path[i] = n
179 if n[-1] in '. ':
179 if n[-1] in '. ':
180 # encode last period or space ('foo...' -> 'foo..~2e')
180 # encode last period or space ('foo...' -> 'foo..~2e')
181 path[i] = n[:-1] + "~%02x" % ord(n[-1])
181 path[i] = n[:-1] + "~%02x" % ord(n[-1])
182 return path
182 return path
183
183
184 _maxstorepathlen = 120
184 _maxstorepathlen = 120
185 _dirprefixlen = 8
185 _dirprefixlen = 8
186 _maxshortdirslen = 8 * (_dirprefixlen + 1) - 4
186 _maxshortdirslen = 8 * (_dirprefixlen + 1) - 4
187
187
188 def _hashencode(path, dotencode):
188 def _hashencode(path, dotencode):
189 digest = _sha(path).hexdigest()
189 digest = _sha(path).hexdigest()
190 le = lowerencode(path).split('/')[1:]
190 le = lowerencode(path).split('/')[1:]
191 parts = _auxencode(le, dotencode)
191 parts = _auxencode(le, dotencode)
192 basename = parts[-1]
192 basename = parts[-1]
193 _root, ext = os.path.splitext(basename)
193 _root, ext = os.path.splitext(basename)
194 sdirs = []
194 sdirs = []
195 sdirslen = 0
195 sdirslen = 0
196 for p in parts[:-1]:
196 for p in parts[:-1]:
197 d = p[:_dirprefixlen]
197 d = p[:_dirprefixlen]
198 if d[-1] in '. ':
198 if d[-1] in '. ':
199 # Windows can't access dirs ending in period or space
199 # Windows can't access dirs ending in period or space
200 d = d[:-1] + '_'
200 d = d[:-1] + '_'
201 if sdirslen == 0:
201 if sdirslen == 0:
202 t = len(d)
202 t = len(d)
203 else:
203 else:
204 t = sdirslen + 1 + len(d)
204 t = sdirslen + 1 + len(d)
205 if t > _maxshortdirslen:
205 if t > _maxshortdirslen:
206 break
206 break
207 sdirs.append(d)
207 sdirs.append(d)
208 sdirslen = t
208 sdirslen = t
209 dirs = '/'.join(sdirs)
209 dirs = '/'.join(sdirs)
210 if len(dirs) > 0:
210 if len(dirs) > 0:
211 dirs += '/'
211 dirs += '/'
212 res = 'dh/' + dirs + digest + ext
212 res = 'dh/' + dirs + digest + ext
213 spaceleft = _maxstorepathlen - len(res)
213 spaceleft = _maxstorepathlen - len(res)
214 if spaceleft > 0:
214 if spaceleft > 0:
215 filler = basename[:spaceleft]
215 filler = basename[:spaceleft]
216 res = 'dh/' + dirs + filler + digest + ext
216 res = 'dh/' + dirs + filler + digest + ext
217 return res
217 return res
218
218
219 def _hybridencode(path, dotencode):
219 def _hybridencode(path, dotencode):
220 '''encodes path with a length limit
220 '''encodes path with a length limit
221
221
222 Encodes all paths that begin with 'data/', according to the following.
222 Encodes all paths that begin with 'data/', according to the following.
223
223
224 Default encoding (reversible):
224 Default encoding (reversible):
225
225
226 Encodes all uppercase letters 'X' as '_x'. All reserved or illegal
226 Encodes all uppercase letters 'X' as '_x'. All reserved or illegal
227 characters are encoded as '~xx', where xx is the two digit hex code
227 characters are encoded as '~xx', where xx is the two digit hex code
228 of the character (see encodefilename).
228 of the character (see encodefilename).
229 Relevant path components consisting of Windows reserved filenames are
229 Relevant path components consisting of Windows reserved filenames are
230 masked by encoding the third character ('aux' -> 'au~78', see _auxencode).
230 masked by encoding the third character ('aux' -> 'au~78', see _auxencode).
231
231
232 Hashed encoding (not reversible):
232 Hashed encoding (not reversible):
233
233
234 If the default-encoded path is longer than _maxstorepathlen, a
234 If the default-encoded path is longer than _maxstorepathlen, a
235 non-reversible hybrid hashing of the path is done instead.
235 non-reversible hybrid hashing of the path is done instead.
236 This encoding uses up to _dirprefixlen characters of all directory
236 This encoding uses up to _dirprefixlen characters of all directory
237 levels of the lowerencoded path, but not more levels than can fit into
237 levels of the lowerencoded path, but not more levels than can fit into
238 _maxshortdirslen.
238 _maxshortdirslen.
239 Then follows the filler followed by the sha digest of the full path.
239 Then follows the filler followed by the sha digest of the full path.
240 The filler is the beginning of the basename of the lowerencoded path
240 The filler is the beginning of the basename of the lowerencoded path
241 (the basename is everything after the last path separator). The filler
241 (the basename is everything after the last path separator). The filler
242 is as long as possible, filling in characters from the basename until
242 is as long as possible, filling in characters from the basename until
243 the encoded path has _maxstorepathlen characters (or all chars of the
243 the encoded path has _maxstorepathlen characters (or all chars of the
244 basename have been taken).
244 basename have been taken).
245 The extension (e.g. '.i' or '.d') is preserved.
245 The extension (e.g. '.i' or '.d') is preserved.
246
246
247 The string 'data/' at the beginning is replaced with 'dh/', if the hashed
247 The string 'data/' at the beginning is replaced with 'dh/', if the hashed
248 encoding was used.
248 encoding was used.
249 '''
249 '''
250 path = encodedir(path)
250 path = encodedir(path)
251 ef = _encodefname(path).split('/')
251 ef = _encodefname(path).split('/')
252 res = '/'.join(_auxencode(ef, dotencode))
252 res = '/'.join(_auxencode(ef, dotencode))
253 if len(res) > _maxstorepathlen:
253 if len(res) > _maxstorepathlen:
254 res = _hashencode(path, dotencode)
254 res = _hashencode(path, dotencode)
255 return res
255 return res
256
256
257 def _pathencode(path):
257 def _pathencode(path):
258 de = encodedir(path)
258 de = encodedir(path)
259 if len(path) > _maxstorepathlen:
259 if len(path) > _maxstorepathlen:
260 return _hashencode(de, True)
260 return _hashencode(de, True)
261 ef = _encodefname(de).split('/')
261 ef = _encodefname(de).split('/')
262 res = '/'.join(_auxencode(ef, True))
262 res = '/'.join(_auxencode(ef, True))
263 if len(res) > _maxstorepathlen:
263 if len(res) > _maxstorepathlen:
264 return _hashencode(de, True)
264 return _hashencode(de, True)
265 return res
265 return res
266
266
267 _pathencode = getattr(parsers, 'pathencode', _pathencode)
267 _pathencode = getattr(parsers, 'pathencode', _pathencode)
268
268
269 def _plainhybridencode(f):
269 def _plainhybridencode(f):
270 return _hybridencode(f, False)
270 return _hybridencode(f, False)
271
271
272 def _calcmode(vfs):
272 def _calcmode(vfs):
273 try:
273 try:
274 # files in .hg/ will be created using this mode
274 # files in .hg/ will be created using this mode
275 mode = vfs.stat().st_mode
275 mode = vfs.stat().st_mode
276 # avoid some useless chmods
276 # avoid some useless chmods
277 if (0777 & ~util.umask) == (0777 & mode):
277 if (0777 & ~util.umask) == (0777 & mode):
278 mode = None
278 mode = None
279 except OSError:
279 except OSError:
280 mode = None
280 mode = None
281 return mode
281 return mode
282
282
283 _data = ('data 00manifest.d 00manifest.i 00changelog.d 00changelog.i'
283 _data = ('data 00manifest.d 00manifest.i 00changelog.d 00changelog.i'
284 ' phaseroots obsstore')
284 ' phaseroots obsstore')
285
285
286 class basicstore(object):
286 class basicstore(object):
287 '''base class for local repository stores'''
287 '''base class for local repository stores'''
288 def __init__(self, path, vfstype):
288 def __init__(self, path, vfstype):
289 vfs = vfstype(path)
289 vfs = vfstype(path)
290 self.path = vfs.base
290 self.path = vfs.base
291 self.createmode = _calcmode(vfs)
291 self.createmode = _calcmode(vfs)
292 vfs.createmode = self.createmode
292 vfs.createmode = self.createmode
293 self.rawvfs = vfs
293 self.rawvfs = vfs
294 self.vfs = scmutil.filtervfs(vfs, encodedir)
294 self.vfs = scmutil.filtervfs(vfs, encodedir)
295 self.opener = self.vfs
295 self.opener = self.vfs
296
296
297 def join(self, f):
297 def join(self, f):
298 return self.path + '/' + encodedir(f)
298 return self.path + '/' + encodedir(f)
299
299
300 def _walk(self, relpath, recurse):
300 def _walk(self, relpath, recurse):
301 '''yields (unencoded, encoded, size)'''
301 '''yields (unencoded, encoded, size)'''
302 path = self.path
302 path = self.path
303 if relpath:
303 if relpath:
304 path += '/' + relpath
304 path += '/' + relpath
305 striplen = len(self.path) + 1
305 striplen = len(self.path) + 1
306 l = []
306 l = []
307 if self.rawvfs.isdir(path):
307 if self.rawvfs.isdir(path):
308 visit = [path]
308 visit = [path]
309 readdir = self.rawvfs.readdir
309 readdir = self.rawvfs.readdir
310 while visit:
310 while visit:
311 p = visit.pop()
311 p = visit.pop()
312 for f, kind, st in readdir(p, stat=True):
312 for f, kind, st in readdir(p, stat=True):
313 fp = p + '/' + f
313 fp = p + '/' + f
314 if kind == stat.S_IFREG and f[-2:] in ('.d', '.i'):
314 if kind == stat.S_IFREG and f[-2:] in ('.d', '.i'):
315 n = util.pconvert(fp[striplen:])
315 n = util.pconvert(fp[striplen:])
316 l.append((decodedir(n), n, st.st_size))
316 l.append((decodedir(n), n, st.st_size))
317 elif kind == stat.S_IFDIR and recurse:
317 elif kind == stat.S_IFDIR and recurse:
318 visit.append(fp)
318 visit.append(fp)
319 l.sort()
319 l.sort()
320 return l
320 return l
321
321
322 def datafiles(self):
322 def datafiles(self):
323 return self._walk('data', True)
323 return self._walk('data', True)
324
324
325 def topfiles(self):
325 def topfiles(self):
326 # yield manifest before changelog
326 # yield manifest before changelog
327 return reversed(self._walk('', False))
327 return reversed(self._walk('', False))
328
328
329 def walk(self):
329 def walk(self):
330 '''yields (unencoded, encoded, size)'''
330 '''yields (unencoded, encoded, size)'''
331 # yield data files first
331 # yield data files first
332 for x in self.datafiles():
332 for x in self.datafiles():
333 yield x
333 yield x
334 for x in self.topfiles():
334 for x in self.topfiles():
335 yield x
335 yield x
336
336
337 def copylist(self):
337 def copylist(self):
338 return ['requires'] + _data.split()
338 return ['requires'] + _data.split()
339
339
340 def write(self):
340 def write(self):
341 pass
341 pass
342
342
343 def __contains__(self, path):
343 def __contains__(self, path):
344 '''Checks if the store contains path'''
344 '''Checks if the store contains path'''
345 path = "/".join(("data", path))
345 path = "/".join(("data", path))
346 # file?
346 # file?
347 if self.vfs.exists(path + ".i"):
347 if self.vfs.exists(path + ".i"):
348 return True
348 return True
349 # dir?
349 # dir?
350 if not path.endswith("/"):
350 if not path.endswith("/"):
351 path = path + "/"
351 path = path + "/"
352 return self.vfs.exists(path)
352 return self.vfs.exists(path)
353
353
354 class encodedstore(basicstore):
354 class encodedstore(basicstore):
355 def __init__(self, path, vfstype):
355 def __init__(self, path, vfstype):
356 vfs = vfstype(path + '/store')
356 vfs = vfstype(path + '/store')
357 self.path = vfs.base
357 self.path = vfs.base
358 self.createmode = _calcmode(vfs)
358 self.createmode = _calcmode(vfs)
359 vfs.createmode = self.createmode
359 vfs.createmode = self.createmode
360 self.rawvfs = vfs
360 self.rawvfs = vfs
361 self.vfs = scmutil.filtervfs(vfs, encodefilename)
361 self.vfs = scmutil.filtervfs(vfs, encodefilename)
362 self.opener = self.vfs
362 self.opener = self.vfs
363
363
364 def datafiles(self):
364 def datafiles(self):
365 for a, b, size in self._walk('data', True):
365 for a, b, size in self._walk('data', True):
366 try:
366 try:
367 a = decodefilename(a)
367 a = decodefilename(a)
368 except KeyError:
368 except KeyError:
369 a = None
369 a = None
370 yield a, b, size
370 yield a, b, size
371
371
372 def join(self, f):
372 def join(self, f):
373 return self.path + '/' + encodefilename(f)
373 return self.path + '/' + encodefilename(f)
374
374
375 def copylist(self):
375 def copylist(self):
376 return (['requires', '00changelog.i'] +
376 return (['requires', '00changelog.i'] +
377 ['store/' + f for f in _data.split()])
377 ['store/' + f for f in _data.split()])
378
378
379 class fncache(object):
379 class fncache(object):
380 # the filename used to be partially encoded
380 # the filename used to be partially encoded
381 # hence the encodedir/decodedir dance
381 # hence the encodedir/decodedir dance
382 def __init__(self, vfs):
382 def __init__(self, vfs):
383 self.vfs = vfs
383 self.vfs = vfs
384 self.entries = None
384 self.entries = None
385 self._dirty = False
385 self._dirty = False
386
386
387 def _load(self):
387 def _load(self):
388 '''fill the entries from the fncache file'''
388 '''fill the entries from the fncache file'''
389 self._dirty = False
389 self._dirty = False
390 try:
390 try:
391 fp = self.vfs('fncache', mode='rb')
391 fp = self.vfs('fncache', mode='rb')
392 except IOError:
392 except IOError:
393 # skip nonexistent file
393 # skip nonexistent file
394 self.entries = set()
394 self.entries = set()
395 return
395 return
396 self.entries = set(decodedir(fp.read()).splitlines())
396 self.entries = set(decodedir(fp.read()).splitlines())
397 if '' in self.entries:
397 if '' in self.entries:
398 fp.seek(0)
398 fp.seek(0)
399 for n, line in enumerate(fp):
399 for n, line in enumerate(fp):
400 if not line.rstrip('\n'):
400 if not line.rstrip('\n'):
401 t = _('invalid entry in fncache, line %s') % (n + 1)
401 t = _('invalid entry in fncache, line %s') % (n + 1)
402 raise util.Abort(t)
402 raise util.Abort(t)
403 fp.close()
403 fp.close()
404
404
405 def _write(self, files, atomictemp):
405 def write(self):
406 fp = self.vfs('fncache', mode='wb', atomictemp=atomictemp)
406 if self._dirty:
407 if files:
407 fp = self.vfs('fncache', mode='wb', atomictemp=True)
408 fp.write(encodedir('\n'.join(files) + '\n'))
408 if self.entries:
409 fp.write(encodedir('\n'.join(self.entries) + '\n'))
409 fp.close()
410 fp.close()
410 self._dirty = False
411 self._dirty = False
411
412
412 def rewrite(self, files):
413 self._write(files, False)
414 self.entries = set(files)
415
416 def write(self):
417 if self._dirty:
418 self._write(self.entries, True)
419
420 def add(self, fn):
413 def add(self, fn):
421 if self.entries is None:
414 if self.entries is None:
422 self._load()
415 self._load()
423 if fn not in self.entries:
416 if fn not in self.entries:
424 self._dirty = True
417 self._dirty = True
425 self.entries.add(fn)
418 self.entries.add(fn)
426
419
427 def __contains__(self, fn):
420 def __contains__(self, fn):
428 if self.entries is None:
421 if self.entries is None:
429 self._load()
422 self._load()
430 return fn in self.entries
423 return fn in self.entries
431
424
432 def __iter__(self):
425 def __iter__(self):
433 if self.entries is None:
426 if self.entries is None:
434 self._load()
427 self._load()
435 return iter(self.entries)
428 return iter(self.entries)
436
429
437 class _fncachevfs(scmutil.abstractvfs, scmutil.auditvfs):
430 class _fncachevfs(scmutil.abstractvfs, scmutil.auditvfs):
438 def __init__(self, vfs, fnc, encode):
431 def __init__(self, vfs, fnc, encode):
439 scmutil.auditvfs.__init__(self, vfs)
432 scmutil.auditvfs.__init__(self, vfs)
440 self.fncache = fnc
433 self.fncache = fnc
441 self.encode = encode
434 self.encode = encode
442
435
443 def __call__(self, path, mode='r', *args, **kw):
436 def __call__(self, path, mode='r', *args, **kw):
444 if mode not in ('r', 'rb') and path.startswith('data/'):
437 if mode not in ('r', 'rb') and path.startswith('data/'):
445 self.fncache.add(path)
438 self.fncache.add(path)
446 return self.vfs(self.encode(path), mode, *args, **kw)
439 return self.vfs(self.encode(path), mode, *args, **kw)
447
440
448 def join(self, path):
441 def join(self, path):
449 if path:
442 if path:
450 return self.vfs.join(self.encode(path))
443 return self.vfs.join(self.encode(path))
451 else:
444 else:
452 return self.vfs.join(path)
445 return self.vfs.join(path)
453
446
454 class fncachestore(basicstore):
447 class fncachestore(basicstore):
455 def __init__(self, path, vfstype, dotencode):
448 def __init__(self, path, vfstype, dotencode):
456 if dotencode:
449 if dotencode:
457 encode = _pathencode
450 encode = _pathencode
458 else:
451 else:
459 encode = _plainhybridencode
452 encode = _plainhybridencode
460 self.encode = encode
453 self.encode = encode
461 vfs = vfstype(path + '/store')
454 vfs = vfstype(path + '/store')
462 self.path = vfs.base
455 self.path = vfs.base
463 self.pathsep = self.path + '/'
456 self.pathsep = self.path + '/'
464 self.createmode = _calcmode(vfs)
457 self.createmode = _calcmode(vfs)
465 vfs.createmode = self.createmode
458 vfs.createmode = self.createmode
466 self.rawvfs = vfs
459 self.rawvfs = vfs
467 fnc = fncache(vfs)
460 fnc = fncache(vfs)
468 self.fncache = fnc
461 self.fncache = fnc
469 self.vfs = _fncachevfs(vfs, fnc, encode)
462 self.vfs = _fncachevfs(vfs, fnc, encode)
470 self.opener = self.vfs
463 self.opener = self.vfs
471
464
472 def join(self, f):
465 def join(self, f):
473 return self.pathsep + self.encode(f)
466 return self.pathsep + self.encode(f)
474
467
475 def getsize(self, path):
468 def getsize(self, path):
476 return self.rawvfs.stat(path).st_size
469 return self.rawvfs.stat(path).st_size
477
470
478 def datafiles(self):
471 def datafiles(self):
479 rewrite = False
480 existing = []
472 existing = []
481 for f in sorted(self.fncache):
473 for f in sorted(self.fncache):
482 ef = self.encode(f)
474 ef = self.encode(f)
483 try:
475 try:
484 yield f, ef, self.getsize(ef)
476 yield f, ef, self.getsize(ef)
485 existing.append(f)
477 existing.append(f)
486 except OSError, err:
478 except OSError, err:
487 if err.errno != errno.ENOENT:
479 if err.errno != errno.ENOENT:
488 raise
480 raise
489 # nonexistent entry
490 rewrite = True
491 if rewrite:
492 # rewrite fncache to remove nonexistent entries
493 # (may be caused by rollback / strip)
494 self.fncache.rewrite(existing)
495
481
496 def copylist(self):
482 def copylist(self):
497 d = ('data dh fncache phaseroots obsstore'
483 d = ('data dh fncache phaseroots obsstore'
498 ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i')
484 ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i')
499 return (['requires', '00changelog.i'] +
485 return (['requires', '00changelog.i'] +
500 ['store/' + f for f in d.split()])
486 ['store/' + f for f in d.split()])
501
487
502 def write(self):
488 def write(self):
503 self.fncache.write()
489 self.fncache.write()
504
490
505 def _exists(self, f):
491 def _exists(self, f):
506 ef = self.encode(f)
492 ef = self.encode(f)
507 try:
493 try:
508 self.getsize(ef)
494 self.getsize(ef)
509 return True
495 return True
510 except OSError, err:
496 except OSError, err:
511 if err.errno != errno.ENOENT:
497 if err.errno != errno.ENOENT:
512 raise
498 raise
513 # nonexistent entry
499 # nonexistent entry
514 return False
500 return False
515
501
516 def __contains__(self, path):
502 def __contains__(self, path):
517 '''Checks if the store contains path'''
503 '''Checks if the store contains path'''
518 path = "/".join(("data", path))
504 path = "/".join(("data", path))
519 # check for files (exact match)
505 # check for files (exact match)
520 e = path + '.i'
506 e = path + '.i'
521 if e in self.fncache and self._exists(e):
507 if e in self.fncache and self._exists(e):
522 return True
508 return True
523 # now check for directories (prefix match)
509 # now check for directories (prefix match)
524 if not path.endswith('/'):
510 if not path.endswith('/'):
525 path += '/'
511 path += '/'
526 for e in self.fncache:
512 for e in self.fncache:
527 if e.startswith(path) and self._exists(e):
513 if e.startswith(path) and self._exists(e):
528 return True
514 return True
529 return False
515 return False
530
516
531 def store(requirements, path, vfstype):
517 def store(requirements, path, vfstype):
532 if 'store' in requirements:
518 if 'store' in requirements:
533 if 'fncache' in requirements:
519 if 'fncache' in requirements:
534 return fncachestore(path, vfstype, 'dotencode' in requirements)
520 return fncachestore(path, vfstype, 'dotencode' in requirements)
535 return encodedstore(path, vfstype)
521 return encodedstore(path, vfstype)
536 return basicstore(path, vfstype)
522 return basicstore(path, vfstype)
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