Show More
@@ -1,536 +1,522 b'' | |||
|
1 | 1 | # store.py - repository store handling for Mercurial |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2008 Matt Mackall <mpm@selenic.com> |
|
4 | 4 | # |
|
5 | 5 | # This software may be used and distributed according to the terms of the |
|
6 | 6 | # GNU General Public License version 2 or any later version. |
|
7 | 7 | |
|
8 | 8 | from i18n import _ |
|
9 | 9 | import scmutil, util, parsers |
|
10 | 10 | import os, stat, errno |
|
11 | 11 | |
|
12 | 12 | _sha = util.sha1 |
|
13 | 13 | |
|
14 | 14 | # This avoids a collision between a file named foo and a dir named |
|
15 | 15 | # foo.i or foo.d |
|
16 | 16 | def _encodedir(path): |
|
17 | 17 | ''' |
|
18 | 18 | >>> _encodedir('data/foo.i') |
|
19 | 19 | 'data/foo.i' |
|
20 | 20 | >>> _encodedir('data/foo.i/bla.i') |
|
21 | 21 | 'data/foo.i.hg/bla.i' |
|
22 | 22 | >>> _encodedir('data/foo.i.hg/bla.i') |
|
23 | 23 | 'data/foo.i.hg.hg/bla.i' |
|
24 | 24 | >>> _encodedir('data/foo.i\\ndata/foo.i/bla.i\\ndata/foo.i.hg/bla.i\\n') |
|
25 | 25 | 'data/foo.i\\ndata/foo.i.hg/bla.i\\ndata/foo.i.hg.hg/bla.i\\n' |
|
26 | 26 | ''' |
|
27 | 27 | return (path |
|
28 | 28 | .replace(".hg/", ".hg.hg/") |
|
29 | 29 | .replace(".i/", ".i.hg/") |
|
30 | 30 | .replace(".d/", ".d.hg/")) |
|
31 | 31 | |
|
32 | 32 | encodedir = getattr(parsers, 'encodedir', _encodedir) |
|
33 | 33 | |
|
34 | 34 | def decodedir(path): |
|
35 | 35 | ''' |
|
36 | 36 | >>> decodedir('data/foo.i') |
|
37 | 37 | 'data/foo.i' |
|
38 | 38 | >>> decodedir('data/foo.i.hg/bla.i') |
|
39 | 39 | 'data/foo.i/bla.i' |
|
40 | 40 | >>> decodedir('data/foo.i.hg.hg/bla.i') |
|
41 | 41 | 'data/foo.i.hg/bla.i' |
|
42 | 42 | ''' |
|
43 | 43 | if ".hg/" not in path: |
|
44 | 44 | return path |
|
45 | 45 | return (path |
|
46 | 46 | .replace(".d.hg/", ".d/") |
|
47 | 47 | .replace(".i.hg/", ".i/") |
|
48 | 48 | .replace(".hg.hg/", ".hg/")) |
|
49 | 49 | |
|
50 | 50 | def _buildencodefun(): |
|
51 | 51 | ''' |
|
52 | 52 | >>> enc, dec = _buildencodefun() |
|
53 | 53 | |
|
54 | 54 | >>> enc('nothing/special.txt') |
|
55 | 55 | 'nothing/special.txt' |
|
56 | 56 | >>> dec('nothing/special.txt') |
|
57 | 57 | 'nothing/special.txt' |
|
58 | 58 | |
|
59 | 59 | >>> enc('HELLO') |
|
60 | 60 | '_h_e_l_l_o' |
|
61 | 61 | >>> dec('_h_e_l_l_o') |
|
62 | 62 | 'HELLO' |
|
63 | 63 | |
|
64 | 64 | >>> enc('hello:world?') |
|
65 | 65 | 'hello~3aworld~3f' |
|
66 | 66 | >>> dec('hello~3aworld~3f') |
|
67 | 67 | 'hello:world?' |
|
68 | 68 | |
|
69 | 69 | >>> enc('the\x07quick\xADshot') |
|
70 | 70 | 'the~07quick~adshot' |
|
71 | 71 | >>> dec('the~07quick~adshot') |
|
72 | 72 | 'the\\x07quick\\xadshot' |
|
73 | 73 | ''' |
|
74 | 74 | e = '_' |
|
75 | 75 | winreserved = [ord(x) for x in '\\:*?"<>|'] |
|
76 | 76 | cmap = dict([(chr(x), chr(x)) for x in xrange(127)]) |
|
77 | 77 | for x in (range(32) + range(126, 256) + winreserved): |
|
78 | 78 | cmap[chr(x)] = "~%02x" % x |
|
79 | 79 | for x in range(ord("A"), ord("Z") + 1) + [ord(e)]: |
|
80 | 80 | cmap[chr(x)] = e + chr(x).lower() |
|
81 | 81 | dmap = {} |
|
82 | 82 | for k, v in cmap.iteritems(): |
|
83 | 83 | dmap[v] = k |
|
84 | 84 | def decode(s): |
|
85 | 85 | i = 0 |
|
86 | 86 | while i < len(s): |
|
87 | 87 | for l in xrange(1, 4): |
|
88 | 88 | try: |
|
89 | 89 | yield dmap[s[i:i + l]] |
|
90 | 90 | i += l |
|
91 | 91 | break |
|
92 | 92 | except KeyError: |
|
93 | 93 | pass |
|
94 | 94 | else: |
|
95 | 95 | raise KeyError |
|
96 | 96 | return (lambda s: ''.join([cmap[c] for c in s]), |
|
97 | 97 | lambda s: ''.join(list(decode(s)))) |
|
98 | 98 | |
|
99 | 99 | _encodefname, _decodefname = _buildencodefun() |
|
100 | 100 | |
|
101 | 101 | def encodefilename(s): |
|
102 | 102 | ''' |
|
103 | 103 | >>> encodefilename('foo.i/bar.d/bla.hg/hi:world?/HELLO') |
|
104 | 104 | 'foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o' |
|
105 | 105 | ''' |
|
106 | 106 | return _encodefname(encodedir(s)) |
|
107 | 107 | |
|
108 | 108 | def decodefilename(s): |
|
109 | 109 | ''' |
|
110 | 110 | >>> decodefilename('foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o') |
|
111 | 111 | 'foo.i/bar.d/bla.hg/hi:world?/HELLO' |
|
112 | 112 | ''' |
|
113 | 113 | return decodedir(_decodefname(s)) |
|
114 | 114 | |
|
115 | 115 | def _buildlowerencodefun(): |
|
116 | 116 | ''' |
|
117 | 117 | >>> f = _buildlowerencodefun() |
|
118 | 118 | >>> f('nothing/special.txt') |
|
119 | 119 | 'nothing/special.txt' |
|
120 | 120 | >>> f('HELLO') |
|
121 | 121 | 'hello' |
|
122 | 122 | >>> f('hello:world?') |
|
123 | 123 | 'hello~3aworld~3f' |
|
124 | 124 | >>> f('the\x07quick\xADshot') |
|
125 | 125 | 'the~07quick~adshot' |
|
126 | 126 | ''' |
|
127 | 127 | winreserved = [ord(x) for x in '\\:*?"<>|'] |
|
128 | 128 | cmap = dict([(chr(x), chr(x)) for x in xrange(127)]) |
|
129 | 129 | for x in (range(32) + range(126, 256) + winreserved): |
|
130 | 130 | cmap[chr(x)] = "~%02x" % x |
|
131 | 131 | for x in range(ord("A"), ord("Z") + 1): |
|
132 | 132 | cmap[chr(x)] = chr(x).lower() |
|
133 | 133 | return lambda s: "".join([cmap[c] for c in s]) |
|
134 | 134 | |
|
135 | 135 | lowerencode = getattr(parsers, 'lowerencode', None) or _buildlowerencodefun() |
|
136 | 136 | |
|
137 | 137 | # Windows reserved names: con, prn, aux, nul, com1..com9, lpt1..lpt9 |
|
138 | 138 | _winres3 = ('aux', 'con', 'prn', 'nul') # length 3 |
|
139 | 139 | _winres4 = ('com', 'lpt') # length 4 (with trailing 1..9) |
|
140 | 140 | def _auxencode(path, dotencode): |
|
141 | 141 | ''' |
|
142 | 142 | Encodes filenames containing names reserved by Windows or which end in |
|
143 | 143 | period or space. Does not touch other single reserved characters c. |
|
144 | 144 | Specifically, c in '\\:*?"<>|' or ord(c) <= 31 are *not* encoded here. |
|
145 | 145 | Additionally encodes space or period at the beginning, if dotencode is |
|
146 | 146 | True. Parameter path is assumed to be all lowercase. |
|
147 | 147 | A segment only needs encoding if a reserved name appears as a |
|
148 | 148 | basename (e.g. "aux", "aux.foo"). A directory or file named "foo.aux" |
|
149 | 149 | doesn't need encoding. |
|
150 | 150 | |
|
151 | 151 | >>> s = '.foo/aux.txt/txt.aux/con/prn/nul/foo.' |
|
152 | 152 | >>> _auxencode(s.split('/'), True) |
|
153 | 153 | ['~2efoo', 'au~78.txt', 'txt.aux', 'co~6e', 'pr~6e', 'nu~6c', 'foo~2e'] |
|
154 | 154 | >>> s = '.com1com2/lpt9.lpt4.lpt1/conprn/com0/lpt0/foo.' |
|
155 | 155 | >>> _auxencode(s.split('/'), False) |
|
156 | 156 | ['.com1com2', 'lp~749.lpt4.lpt1', 'conprn', 'com0', 'lpt0', 'foo~2e'] |
|
157 | 157 | >>> _auxencode(['foo. '], True) |
|
158 | 158 | ['foo.~20'] |
|
159 | 159 | >>> _auxencode([' .foo'], True) |
|
160 | 160 | ['~20.foo'] |
|
161 | 161 | ''' |
|
162 | 162 | for i, n in enumerate(path): |
|
163 | 163 | if not n: |
|
164 | 164 | continue |
|
165 | 165 | if dotencode and n[0] in '. ': |
|
166 | 166 | n = "~%02x" % ord(n[0]) + n[1:] |
|
167 | 167 | path[i] = n |
|
168 | 168 | else: |
|
169 | 169 | l = n.find('.') |
|
170 | 170 | if l == -1: |
|
171 | 171 | l = len(n) |
|
172 | 172 | if ((l == 3 and n[:3] in _winres3) or |
|
173 | 173 | (l == 4 and n[3] <= '9' and n[3] >= '1' |
|
174 | 174 | and n[:3] in _winres4)): |
|
175 | 175 | # encode third letter ('aux' -> 'au~78') |
|
176 | 176 | ec = "~%02x" % ord(n[2]) |
|
177 | 177 | n = n[0:2] + ec + n[3:] |
|
178 | 178 | path[i] = n |
|
179 | 179 | if n[-1] in '. ': |
|
180 | 180 | # encode last period or space ('foo...' -> 'foo..~2e') |
|
181 | 181 | path[i] = n[:-1] + "~%02x" % ord(n[-1]) |
|
182 | 182 | return path |
|
183 | 183 | |
|
184 | 184 | _maxstorepathlen = 120 |
|
185 | 185 | _dirprefixlen = 8 |
|
186 | 186 | _maxshortdirslen = 8 * (_dirprefixlen + 1) - 4 |
|
187 | 187 | |
|
188 | 188 | def _hashencode(path, dotencode): |
|
189 | 189 | digest = _sha(path).hexdigest() |
|
190 | 190 | le = lowerencode(path).split('/')[1:] |
|
191 | 191 | parts = _auxencode(le, dotencode) |
|
192 | 192 | basename = parts[-1] |
|
193 | 193 | _root, ext = os.path.splitext(basename) |
|
194 | 194 | sdirs = [] |
|
195 | 195 | sdirslen = 0 |
|
196 | 196 | for p in parts[:-1]: |
|
197 | 197 | d = p[:_dirprefixlen] |
|
198 | 198 | if d[-1] in '. ': |
|
199 | 199 | # Windows can't access dirs ending in period or space |
|
200 | 200 | d = d[:-1] + '_' |
|
201 | 201 | if sdirslen == 0: |
|
202 | 202 | t = len(d) |
|
203 | 203 | else: |
|
204 | 204 | t = sdirslen + 1 + len(d) |
|
205 | 205 | if t > _maxshortdirslen: |
|
206 | 206 | break |
|
207 | 207 | sdirs.append(d) |
|
208 | 208 | sdirslen = t |
|
209 | 209 | dirs = '/'.join(sdirs) |
|
210 | 210 | if len(dirs) > 0: |
|
211 | 211 | dirs += '/' |
|
212 | 212 | res = 'dh/' + dirs + digest + ext |
|
213 | 213 | spaceleft = _maxstorepathlen - len(res) |
|
214 | 214 | if spaceleft > 0: |
|
215 | 215 | filler = basename[:spaceleft] |
|
216 | 216 | res = 'dh/' + dirs + filler + digest + ext |
|
217 | 217 | return res |
|
218 | 218 | |
|
219 | 219 | def _hybridencode(path, dotencode): |
|
220 | 220 | '''encodes path with a length limit |
|
221 | 221 | |
|
222 | 222 | Encodes all paths that begin with 'data/', according to the following. |
|
223 | 223 | |
|
224 | 224 | Default encoding (reversible): |
|
225 | 225 | |
|
226 | 226 | Encodes all uppercase letters 'X' as '_x'. All reserved or illegal |
|
227 | 227 | characters are encoded as '~xx', where xx is the two digit hex code |
|
228 | 228 | of the character (see encodefilename). |
|
229 | 229 | Relevant path components consisting of Windows reserved filenames are |
|
230 | 230 | masked by encoding the third character ('aux' -> 'au~78', see _auxencode). |
|
231 | 231 | |
|
232 | 232 | Hashed encoding (not reversible): |
|
233 | 233 | |
|
234 | 234 | If the default-encoded path is longer than _maxstorepathlen, a |
|
235 | 235 | non-reversible hybrid hashing of the path is done instead. |
|
236 | 236 | This encoding uses up to _dirprefixlen characters of all directory |
|
237 | 237 | levels of the lowerencoded path, but not more levels than can fit into |
|
238 | 238 | _maxshortdirslen. |
|
239 | 239 | Then follows the filler followed by the sha digest of the full path. |
|
240 | 240 | The filler is the beginning of the basename of the lowerencoded path |
|
241 | 241 | (the basename is everything after the last path separator). The filler |
|
242 | 242 | is as long as possible, filling in characters from the basename until |
|
243 | 243 | the encoded path has _maxstorepathlen characters (or all chars of the |
|
244 | 244 | basename have been taken). |
|
245 | 245 | The extension (e.g. '.i' or '.d') is preserved. |
|
246 | 246 | |
|
247 | 247 | The string 'data/' at the beginning is replaced with 'dh/', if the hashed |
|
248 | 248 | encoding was used. |
|
249 | 249 | ''' |
|
250 | 250 | path = encodedir(path) |
|
251 | 251 | ef = _encodefname(path).split('/') |
|
252 | 252 | res = '/'.join(_auxencode(ef, dotencode)) |
|
253 | 253 | if len(res) > _maxstorepathlen: |
|
254 | 254 | res = _hashencode(path, dotencode) |
|
255 | 255 | return res |
|
256 | 256 | |
|
257 | 257 | def _pathencode(path): |
|
258 | 258 | de = encodedir(path) |
|
259 | 259 | if len(path) > _maxstorepathlen: |
|
260 | 260 | return _hashencode(de, True) |
|
261 | 261 | ef = _encodefname(de).split('/') |
|
262 | 262 | res = '/'.join(_auxencode(ef, True)) |
|
263 | 263 | if len(res) > _maxstorepathlen: |
|
264 | 264 | return _hashencode(de, True) |
|
265 | 265 | return res |
|
266 | 266 | |
|
267 | 267 | _pathencode = getattr(parsers, 'pathencode', _pathencode) |
|
268 | 268 | |
|
269 | 269 | def _plainhybridencode(f): |
|
270 | 270 | return _hybridencode(f, False) |
|
271 | 271 | |
|
272 | 272 | def _calcmode(vfs): |
|
273 | 273 | try: |
|
274 | 274 | # files in .hg/ will be created using this mode |
|
275 | 275 | mode = vfs.stat().st_mode |
|
276 | 276 | # avoid some useless chmods |
|
277 | 277 | if (0777 & ~util.umask) == (0777 & mode): |
|
278 | 278 | mode = None |
|
279 | 279 | except OSError: |
|
280 | 280 | mode = None |
|
281 | 281 | return mode |
|
282 | 282 | |
|
283 | 283 | _data = ('data 00manifest.d 00manifest.i 00changelog.d 00changelog.i' |
|
284 | 284 | ' phaseroots obsstore') |
|
285 | 285 | |
|
286 | 286 | class basicstore(object): |
|
287 | 287 | '''base class for local repository stores''' |
|
288 | 288 | def __init__(self, path, vfstype): |
|
289 | 289 | vfs = vfstype(path) |
|
290 | 290 | self.path = vfs.base |
|
291 | 291 | self.createmode = _calcmode(vfs) |
|
292 | 292 | vfs.createmode = self.createmode |
|
293 | 293 | self.rawvfs = vfs |
|
294 | 294 | self.vfs = scmutil.filtervfs(vfs, encodedir) |
|
295 | 295 | self.opener = self.vfs |
|
296 | 296 | |
|
297 | 297 | def join(self, f): |
|
298 | 298 | return self.path + '/' + encodedir(f) |
|
299 | 299 | |
|
300 | 300 | def _walk(self, relpath, recurse): |
|
301 | 301 | '''yields (unencoded, encoded, size)''' |
|
302 | 302 | path = self.path |
|
303 | 303 | if relpath: |
|
304 | 304 | path += '/' + relpath |
|
305 | 305 | striplen = len(self.path) + 1 |
|
306 | 306 | l = [] |
|
307 | 307 | if self.rawvfs.isdir(path): |
|
308 | 308 | visit = [path] |
|
309 | 309 | readdir = self.rawvfs.readdir |
|
310 | 310 | while visit: |
|
311 | 311 | p = visit.pop() |
|
312 | 312 | for f, kind, st in readdir(p, stat=True): |
|
313 | 313 | fp = p + '/' + f |
|
314 | 314 | if kind == stat.S_IFREG and f[-2:] in ('.d', '.i'): |
|
315 | 315 | n = util.pconvert(fp[striplen:]) |
|
316 | 316 | l.append((decodedir(n), n, st.st_size)) |
|
317 | 317 | elif kind == stat.S_IFDIR and recurse: |
|
318 | 318 | visit.append(fp) |
|
319 | 319 | l.sort() |
|
320 | 320 | return l |
|
321 | 321 | |
|
322 | 322 | def datafiles(self): |
|
323 | 323 | return self._walk('data', True) |
|
324 | 324 | |
|
325 | 325 | def topfiles(self): |
|
326 | 326 | # yield manifest before changelog |
|
327 | 327 | return reversed(self._walk('', False)) |
|
328 | 328 | |
|
329 | 329 | def walk(self): |
|
330 | 330 | '''yields (unencoded, encoded, size)''' |
|
331 | 331 | # yield data files first |
|
332 | 332 | for x in self.datafiles(): |
|
333 | 333 | yield x |
|
334 | 334 | for x in self.topfiles(): |
|
335 | 335 | yield x |
|
336 | 336 | |
|
337 | 337 | def copylist(self): |
|
338 | 338 | return ['requires'] + _data.split() |
|
339 | 339 | |
|
340 | 340 | def write(self): |
|
341 | 341 | pass |
|
342 | 342 | |
|
343 | 343 | def __contains__(self, path): |
|
344 | 344 | '''Checks if the store contains path''' |
|
345 | 345 | path = "/".join(("data", path)) |
|
346 | 346 | # file? |
|
347 | 347 | if self.vfs.exists(path + ".i"): |
|
348 | 348 | return True |
|
349 | 349 | # dir? |
|
350 | 350 | if not path.endswith("/"): |
|
351 | 351 | path = path + "/" |
|
352 | 352 | return self.vfs.exists(path) |
|
353 | 353 | |
|
354 | 354 | class encodedstore(basicstore): |
|
355 | 355 | def __init__(self, path, vfstype): |
|
356 | 356 | vfs = vfstype(path + '/store') |
|
357 | 357 | self.path = vfs.base |
|
358 | 358 | self.createmode = _calcmode(vfs) |
|
359 | 359 | vfs.createmode = self.createmode |
|
360 | 360 | self.rawvfs = vfs |
|
361 | 361 | self.vfs = scmutil.filtervfs(vfs, encodefilename) |
|
362 | 362 | self.opener = self.vfs |
|
363 | 363 | |
|
364 | 364 | def datafiles(self): |
|
365 | 365 | for a, b, size in self._walk('data', True): |
|
366 | 366 | try: |
|
367 | 367 | a = decodefilename(a) |
|
368 | 368 | except KeyError: |
|
369 | 369 | a = None |
|
370 | 370 | yield a, b, size |
|
371 | 371 | |
|
372 | 372 | def join(self, f): |
|
373 | 373 | return self.path + '/' + encodefilename(f) |
|
374 | 374 | |
|
375 | 375 | def copylist(self): |
|
376 | 376 | return (['requires', '00changelog.i'] + |
|
377 | 377 | ['store/' + f for f in _data.split()]) |
|
378 | 378 | |
|
379 | 379 | class fncache(object): |
|
380 | 380 | # the filename used to be partially encoded |
|
381 | 381 | # hence the encodedir/decodedir dance |
|
382 | 382 | def __init__(self, vfs): |
|
383 | 383 | self.vfs = vfs |
|
384 | 384 | self.entries = None |
|
385 | 385 | self._dirty = False |
|
386 | 386 | |
|
387 | 387 | def _load(self): |
|
388 | 388 | '''fill the entries from the fncache file''' |
|
389 | 389 | self._dirty = False |
|
390 | 390 | try: |
|
391 | 391 | fp = self.vfs('fncache', mode='rb') |
|
392 | 392 | except IOError: |
|
393 | 393 | # skip nonexistent file |
|
394 | 394 | self.entries = set() |
|
395 | 395 | return |
|
396 | 396 | self.entries = set(decodedir(fp.read()).splitlines()) |
|
397 | 397 | if '' in self.entries: |
|
398 | 398 | fp.seek(0) |
|
399 | 399 | for n, line in enumerate(fp): |
|
400 | 400 | if not line.rstrip('\n'): |
|
401 | 401 | t = _('invalid entry in fncache, line %s') % (n + 1) |
|
402 | 402 | raise util.Abort(t) |
|
403 | 403 | fp.close() |
|
404 | 404 | |
|
405 | def _write(self, files, atomictemp): | |
|
406 | fp = self.vfs('fncache', mode='wb', atomictemp=atomictemp) | |
|
407 | if files: | |
|
408 | fp.write(encodedir('\n'.join(files) + '\n')) | |
|
409 | fp.close() | |
|
410 | self._dirty = False | |
|
411 | ||
|
412 | def rewrite(self, files): | |
|
413 | self._write(files, False) | |
|
414 | self.entries = set(files) | |
|
415 | ||
|
416 | 405 | def write(self): |
|
417 | 406 | if self._dirty: |
|
418 | self._write(self.entries, True) | |
|
407 | fp = self.vfs('fncache', mode='wb', atomictemp=True) | |
|
408 | if self.entries: | |
|
409 | fp.write(encodedir('\n'.join(self.entries) + '\n')) | |
|
410 | fp.close() | |
|
411 | self._dirty = False | |
|
419 | 412 | |
|
420 | 413 | def add(self, fn): |
|
421 | 414 | if self.entries is None: |
|
422 | 415 | self._load() |
|
423 | 416 | if fn not in self.entries: |
|
424 | 417 | self._dirty = True |
|
425 | 418 | self.entries.add(fn) |
|
426 | 419 | |
|
427 | 420 | def __contains__(self, fn): |
|
428 | 421 | if self.entries is None: |
|
429 | 422 | self._load() |
|
430 | 423 | return fn in self.entries |
|
431 | 424 | |
|
432 | 425 | def __iter__(self): |
|
433 | 426 | if self.entries is None: |
|
434 | 427 | self._load() |
|
435 | 428 | return iter(self.entries) |
|
436 | 429 | |
|
437 | 430 | class _fncachevfs(scmutil.abstractvfs, scmutil.auditvfs): |
|
438 | 431 | def __init__(self, vfs, fnc, encode): |
|
439 | 432 | scmutil.auditvfs.__init__(self, vfs) |
|
440 | 433 | self.fncache = fnc |
|
441 | 434 | self.encode = encode |
|
442 | 435 | |
|
443 | 436 | def __call__(self, path, mode='r', *args, **kw): |
|
444 | 437 | if mode not in ('r', 'rb') and path.startswith('data/'): |
|
445 | 438 | self.fncache.add(path) |
|
446 | 439 | return self.vfs(self.encode(path), mode, *args, **kw) |
|
447 | 440 | |
|
448 | 441 | def join(self, path): |
|
449 | 442 | if path: |
|
450 | 443 | return self.vfs.join(self.encode(path)) |
|
451 | 444 | else: |
|
452 | 445 | return self.vfs.join(path) |
|
453 | 446 | |
|
454 | 447 | class fncachestore(basicstore): |
|
455 | 448 | def __init__(self, path, vfstype, dotencode): |
|
456 | 449 | if dotencode: |
|
457 | 450 | encode = _pathencode |
|
458 | 451 | else: |
|
459 | 452 | encode = _plainhybridencode |
|
460 | 453 | self.encode = encode |
|
461 | 454 | vfs = vfstype(path + '/store') |
|
462 | 455 | self.path = vfs.base |
|
463 | 456 | self.pathsep = self.path + '/' |
|
464 | 457 | self.createmode = _calcmode(vfs) |
|
465 | 458 | vfs.createmode = self.createmode |
|
466 | 459 | self.rawvfs = vfs |
|
467 | 460 | fnc = fncache(vfs) |
|
468 | 461 | self.fncache = fnc |
|
469 | 462 | self.vfs = _fncachevfs(vfs, fnc, encode) |
|
470 | 463 | self.opener = self.vfs |
|
471 | 464 | |
|
472 | 465 | def join(self, f): |
|
473 | 466 | return self.pathsep + self.encode(f) |
|
474 | 467 | |
|
475 | 468 | def getsize(self, path): |
|
476 | 469 | return self.rawvfs.stat(path).st_size |
|
477 | 470 | |
|
478 | 471 | def datafiles(self): |
|
479 | rewrite = False | |
|
480 | 472 | existing = [] |
|
481 | 473 | for f in sorted(self.fncache): |
|
482 | 474 | ef = self.encode(f) |
|
483 | 475 | try: |
|
484 | 476 | yield f, ef, self.getsize(ef) |
|
485 | 477 | existing.append(f) |
|
486 | 478 | except OSError, err: |
|
487 | 479 | if err.errno != errno.ENOENT: |
|
488 | 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 | 482 | def copylist(self): |
|
497 | 483 | d = ('data dh fncache phaseroots obsstore' |
|
498 | 484 | ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i') |
|
499 | 485 | return (['requires', '00changelog.i'] + |
|
500 | 486 | ['store/' + f for f in d.split()]) |
|
501 | 487 | |
|
502 | 488 | def write(self): |
|
503 | 489 | self.fncache.write() |
|
504 | 490 | |
|
505 | 491 | def _exists(self, f): |
|
506 | 492 | ef = self.encode(f) |
|
507 | 493 | try: |
|
508 | 494 | self.getsize(ef) |
|
509 | 495 | return True |
|
510 | 496 | except OSError, err: |
|
511 | 497 | if err.errno != errno.ENOENT: |
|
512 | 498 | raise |
|
513 | 499 | # nonexistent entry |
|
514 | 500 | return False |
|
515 | 501 | |
|
516 | 502 | def __contains__(self, path): |
|
517 | 503 | '''Checks if the store contains path''' |
|
518 | 504 | path = "/".join(("data", path)) |
|
519 | 505 | # check for files (exact match) |
|
520 | 506 | e = path + '.i' |
|
521 | 507 | if e in self.fncache and self._exists(e): |
|
522 | 508 | return True |
|
523 | 509 | # now check for directories (prefix match) |
|
524 | 510 | if not path.endswith('/'): |
|
525 | 511 | path += '/' |
|
526 | 512 | for e in self.fncache: |
|
527 | 513 | if e.startswith(path) and self._exists(e): |
|
528 | 514 | return True |
|
529 | 515 | return False |
|
530 | 516 | |
|
531 | 517 | def store(requirements, path, vfstype): |
|
532 | 518 | if 'store' in requirements: |
|
533 | 519 | if 'fncache' in requirements: |
|
534 | 520 | return fncachestore(path, vfstype, 'dotencode' in requirements) |
|
535 | 521 | return encodedstore(path, vfstype) |
|
536 | 522 | return basicstore(path, vfstype) |
General Comments 0
You need to be logged in to leave comments.
Login now