Mercurial > public > mercurial-scm > hg
annotate hgext/largefiles/reposetup.py @ 15250:f172292cd416
largefiles: speed up commit by only rewriting standins for modified largefiles
| author | Na'Tosha Bard <natosha@unity3d.com> |
|---|---|
| date | Thu, 13 Oct 2011 12:11:25 +0200 |
| parents | 7c604d8c7e83 |
| children | 6e809bb4f969 |
| rev | line source |
|---|---|
| 15168 | 1 # Copyright 2009-2010 Gregory P. Ward |
| 2 # Copyright 2009-2010 Intelerad Medical Systems Incorporated | |
| 3 # Copyright 2010-2011 Fog Creek Software | |
| 4 # Copyright 2010-2011 Unity Technologies | |
| 5 # | |
| 6 # This software may be used and distributed according to the terms of the | |
| 7 # GNU General Public License version 2 or any later version. | |
| 8 | |
| 9 '''setup for largefiles repositories: reposetup''' | |
| 10 import copy | |
| 11 import types | |
| 12 import os | |
| 13 import re | |
| 14 | |
| 15 from mercurial import context, error, manifest, match as match_, \ | |
| 16 node, util | |
| 17 from mercurial.i18n import _ | |
| 18 | |
| 19 import lfcommands | |
| 20 import proto | |
| 21 import lfutil | |
| 22 | |
| 23 def reposetup(ui, repo): | |
| 24 # wire repositories should be given new wireproto functions but not the | |
| 25 # other largefiles modifications | |
| 26 if not repo.local(): | |
| 27 return proto.wirereposetup(ui, repo) | |
| 28 | |
| 29 for name in ('status', 'commitctx', 'commit', 'push'): | |
| 30 method = getattr(repo, name) | |
| 31 #if not (isinstance(method, types.MethodType) and | |
| 32 # method.im_func is repo.__class__.commitctx.im_func): | |
| 33 if isinstance(method, types.FunctionType) and method.func_name == \ | |
| 34 'wrap': | |
| 35 ui.warn(_('largefiles: repo method %r appears to have already been' | |
| 36 ' wrapped by another extension: ' | |
| 37 'largefiles may behave incorrectly\n') | |
| 38 % name) | |
| 39 | |
| 40 class lfiles_repo(repo.__class__): | |
| 41 lfstatus = False | |
| 42 def status_nolfiles(self, *args, **kwargs): | |
| 43 return super(lfiles_repo, self).status(*args, **kwargs) | |
| 44 | |
| 45 # When lfstatus is set, return a context that gives the names of lfiles | |
| 46 # instead of their corresponding standins and identifies the lfiles as | |
| 47 # always binary, regardless of their actual contents. | |
| 48 def __getitem__(self, changeid): | |
| 49 ctx = super(lfiles_repo, self).__getitem__(changeid) | |
| 50 if self.lfstatus: | |
| 51 class lfiles_manifestdict(manifest.manifestdict): | |
| 52 def __contains__(self, filename): | |
| 53 if super(lfiles_manifestdict, | |
| 54 self).__contains__(filename): | |
| 55 return True | |
| 56 return super(lfiles_manifestdict, | |
| 57 self).__contains__(lfutil.shortname+'/' + filename) | |
| 58 class lfiles_ctx(ctx.__class__): | |
| 59 def files(self): | |
| 60 filenames = super(lfiles_ctx, self).files() | |
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61 return [re.sub('^\\'+lfutil.shortname+'/', '', |
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62 filename) for filename in filenames] |
| 15168 | 63 def manifest(self): |
| 64 man1 = super(lfiles_ctx, self).manifest() | |
| 65 man1.__class__ = lfiles_manifestdict | |
| 66 return man1 | |
| 67 def filectx(self, path, fileid=None, filelog=None): | |
| 68 try: | |
| 69 result = super(lfiles_ctx, self).filectx(path, | |
| 70 fileid, filelog) | |
| 71 except error.LookupError: | |
| 72 # Adding a null character will cause Mercurial to | |
| 73 # identify this as a binary file. | |
| 74 result = super(lfiles_ctx, self).filectx( | |
| 75 lfutil.shortname + '/' + path, fileid, | |
| 76 filelog) | |
| 77 olddata = result.data | |
| 78 result.data = lambda: olddata() + '\0' | |
| 79 return result | |
| 80 ctx.__class__ = lfiles_ctx | |
| 81 return ctx | |
| 82 | |
| 83 # Figure out the status of big files and insert them into the | |
| 84 # appropriate list in the result. Also removes standin files from | |
| 85 # the listing. This function reverts to the original status if | |
| 86 # self.lfstatus is False | |
| 87 def status(self, node1='.', node2=None, match=None, ignored=False, | |
| 88 clean=False, unknown=False, listsubrepos=False): | |
| 89 listignored, listclean, listunknown = ignored, clean, unknown | |
| 90 if not self.lfstatus: | |
| 91 try: | |
| 92 return super(lfiles_repo, self).status(node1, node2, match, | |
| 93 listignored, listclean, listunknown, listsubrepos) | |
| 94 except TypeError: | |
| 95 return super(lfiles_repo, self).status(node1, node2, match, | |
| 96 listignored, listclean, listunknown) | |
| 97 else: | |
| 98 # some calls in this function rely on the old version of status | |
| 99 self.lfstatus = False | |
| 100 if isinstance(node1, context.changectx): | |
| 101 ctx1 = node1 | |
| 102 else: | |
| 103 ctx1 = repo[node1] | |
| 104 if isinstance(node2, context.changectx): | |
| 105 ctx2 = node2 | |
| 106 else: | |
| 107 ctx2 = repo[node2] | |
| 108 working = ctx2.rev() is None | |
| 109 parentworking = working and ctx1 == self['.'] | |
| 110 | |
| 111 def inctx(file, ctx): | |
| 112 try: | |
| 113 if ctx.rev() is None: | |
| 114 return file in ctx.manifest() | |
| 115 ctx[file] | |
| 116 return True | |
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117 except KeyError: |
| 15168 | 118 return False |
| 119 | |
| 120 # create a copy of match that matches standins instead of | |
| 121 # lfiles if matcher not set then it is the always matcher so | |
| 122 # overwrite that | |
| 123 if match is None: | |
| 124 match = match_.always(self.root, self.getcwd()) | |
| 125 | |
| 126 def tostandin(file): | |
| 127 if inctx(lfutil.standin(file), ctx2): | |
| 128 return lfutil.standin(file) | |
| 129 return file | |
| 130 | |
| 131 m = copy.copy(match) | |
| 132 m._files = [tostandin(f) for f in m._files] | |
| 133 | |
| 134 # get ignored clean and unknown but remove them later if they | |
| 135 # were not asked for | |
| 136 try: | |
| 137 result = super(lfiles_repo, self).status(node1, node2, m, | |
| 138 True, True, True, listsubrepos) | |
| 139 except TypeError: | |
| 140 result = super(lfiles_repo, self).status(node1, node2, m, | |
| 141 True, True, True) | |
| 142 if working: | |
| 143 # Hold the wlock while we read lfiles and update the | |
| 144 # lfdirstate | |
| 145 wlock = repo.wlock() | |
| 146 try: | |
| 147 # Any non lfiles that were explicitly listed must be | |
| 148 # taken out or lfdirstate.status will report an error. | |
| 149 # The status of these files was already computed using | |
| 150 # super's status. | |
| 151 lfdirstate = lfutil.openlfdirstate(ui, self) | |
| 152 match._files = [f for f in match._files if f in | |
| 153 lfdirstate] | |
| 154 s = lfdirstate.status(match, [], listignored, | |
| 155 listclean, listunknown) | |
| 156 (unsure, modified, added, removed, missing, unknown, | |
| 157 ignored, clean) = s | |
| 158 if parentworking: | |
| 159 for lfile in unsure: | |
| 160 if ctx1[lfutil.standin(lfile)].data().strip() \ | |
| 161 != lfutil.hashfile(self.wjoin(lfile)): | |
| 162 modified.append(lfile) | |
| 163 else: | |
| 164 clean.append(lfile) | |
| 165 lfdirstate.normal(lfile) | |
| 166 lfdirstate.write() | |
| 167 else: | |
| 168 tocheck = unsure + modified + added + clean | |
| 169 modified, added, clean = [], [], [] | |
| 170 | |
| 171 for lfile in tocheck: | |
| 172 standin = lfutil.standin(lfile) | |
| 173 if inctx(standin, ctx1): | |
| 174 if ctx1[standin].data().strip() != \ | |
| 175 lfutil.hashfile(self.wjoin(lfile)): | |
| 176 modified.append(lfile) | |
| 177 else: | |
| 178 clean.append(lfile) | |
| 179 else: | |
| 180 added.append(lfile) | |
| 181 finally: | |
| 182 wlock.release() | |
| 183 | |
| 184 for standin in ctx1.manifest(): | |
| 185 if not lfutil.isstandin(standin): | |
| 186 continue | |
| 187 lfile = lfutil.splitstandin(standin) | |
| 188 if not match(lfile): | |
| 189 continue | |
| 190 if lfile not in lfdirstate: | |
| 191 removed.append(lfile) | |
| 192 # Handle unknown and ignored differently | |
| 193 lfiles = (modified, added, removed, missing, [], [], clean) | |
| 194 result = list(result) | |
| 195 # Unknown files | |
| 196 result[4] = [f for f in unknown if repo.dirstate[f] == '?'\ | |
| 197 and not lfutil.isstandin(f)] | |
| 198 # Ignored files must be ignored by both the dirstate and | |
| 199 # lfdirstate | |
| 200 result[5] = set(ignored).intersection(set(result[5])) | |
| 201 # combine normal files and lfiles | |
| 202 normals = [[fn for fn in filelist if not \ | |
| 203 lfutil.isstandin(fn)] for filelist in result] | |
| 204 result = [sorted(list1 + list2) for (list1, list2) in \ | |
| 205 zip(normals, lfiles)] | |
| 206 else: | |
| 207 def toname(f): | |
| 208 if lfutil.isstandin(f): | |
| 209 return lfutil.splitstandin(f) | |
| 210 return f | |
| 211 result = [[toname(f) for f in items] for items in result] | |
| 212 | |
| 213 if not listunknown: | |
| 214 result[4] = [] | |
| 215 if not listignored: | |
| 216 result[5] = [] | |
| 217 if not listclean: | |
| 218 result[6] = [] | |
| 219 self.lfstatus = True | |
| 220 return result | |
| 221 | |
| 222 # This call happens after a commit has occurred. Copy all of the lfiles | |
| 223 # into the cache | |
| 224 def commitctx(self, *args, **kwargs): | |
| 225 node = super(lfiles_repo, self).commitctx(*args, **kwargs) | |
| 226 ctx = self[node] | |
| 227 for filename in ctx.files(): | |
| 228 if lfutil.isstandin(filename) and filename in ctx.manifest(): | |
| 229 realfile = lfutil.splitstandin(filename) | |
| 230 lfutil.copytocache(self, ctx.node(), realfile) | |
| 231 | |
| 232 return node | |
| 233 | |
| 234 # This call happens before a commit has occurred. The lfile standins | |
| 235 # have not had their contents updated (to reflect the hash of their | |
| 236 # lfile). Do that here. | |
| 237 def commit(self, text="", user=None, date=None, match=None, | |
| 238 force=False, editor=False, extra={}): | |
| 239 orig = super(lfiles_repo, self).commit | |
| 240 | |
| 241 wlock = repo.wlock() | |
| 242 try: | |
| 243 if getattr(repo, "_isrebasing", False): | |
| 244 # We have to take the time to pull down the new lfiles now. | |
| 245 # Otherwise if we are rebasing, any lfiles that were | |
| 246 # modified in the changesets we are rebasing on top of get | |
| 247 # overwritten either by the rebase or in the first commit | |
| 248 # after the rebase. | |
| 249 lfcommands.updatelfiles(repo.ui, repo) | |
| 250 # Case 1: user calls commit with no specific files or | |
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251 # include/exclude patterns: refresh and commit all files that |
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252 # are "dirty". |
| 15168 | 253 if (match is None) or (not match.anypats() and not \ |
| 254 match.files()): | |
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255 # Spend a bit of time here to get a list of files we know |
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256 # are modified so we can compare only against those. |
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257 # It can cost a lot of time (several seconds) |
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258 # otherwise to update all standins if the largefiles are |
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259 # large. |
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260 lfdirstate = lfutil.openlfdirstate(ui, self) |
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261 dirtymatch = match_.always(repo.root, repo.getcwd()) |
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262 s = lfdirstate.status(dirtymatch, [], False, False, False) |
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263 modifiedfiles = [] |
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264 for i in s: |
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265 modifiedfiles.extend(i) |
| 15168 | 266 lfiles = lfutil.listlfiles(self) |
| 267 # this only loops through lfiles that exist (not | |
| 268 # removed/renamed) | |
| 269 for lfile in lfiles: | |
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270 if lfile in modifiedfiles: |
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271 if os.path.exists(self.wjoin(lfutil.standin(lfile))): |
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272 # this handles the case where a rebase is being |
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273 # performed and the working copy is not updated |
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274 # yet. |
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275 if os.path.exists(self.wjoin(lfile)): |
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276 lfutil.updatestandin(self, |
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277 lfutil.standin(lfile)) |
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278 lfdirstate.normal(lfile) |
| 15168 | 279 for lfile in lfdirstate: |
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280 if lfile in modifiedfiles: |
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281 if not os.path.exists( |
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282 repo.wjoin(lfutil.standin(lfile))): |
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283 lfdirstate.drop(lfile) |
| 15168 | 284 lfdirstate.write() |
| 285 | |
| 286 return orig(text=text, user=user, date=date, match=match, | |
| 287 force=force, editor=editor, extra=extra) | |
| 288 | |
| 289 for file in match.files(): | |
| 290 if lfutil.isstandin(file): | |
| 291 raise util.Abort( | |
| 292 "Don't commit largefile standin. Commit largefile.") | |
| 293 | |
| 294 # Case 2: user calls commit with specified patterns: refresh | |
| 295 # any matching big files. | |
| 296 smatcher = lfutil.composestandinmatcher(self, match) | |
| 297 standins = lfutil.dirstate_walk(self.dirstate, smatcher) | |
| 298 | |
| 299 # No matching big files: get out of the way and pass control to | |
| 300 # the usual commit() method. | |
| 301 if not standins: | |
| 302 return orig(text=text, user=user, date=date, match=match, | |
| 303 force=force, editor=editor, extra=extra) | |
| 304 | |
| 305 # Refresh all matching big files. It's possible that the | |
| 306 # commit will end up failing, in which case the big files will | |
| 307 # stay refreshed. No harm done: the user modified them and | |
| 308 # asked to commit them, so sooner or later we're going to | |
| 309 # refresh the standins. Might as well leave them refreshed. | |
| 310 lfdirstate = lfutil.openlfdirstate(ui, self) | |
| 311 for standin in standins: | |
| 312 lfile = lfutil.splitstandin(standin) | |
| 313 if lfdirstate[lfile] <> 'r': | |
| 314 lfutil.updatestandin(self, standin) | |
| 315 lfdirstate.normal(lfile) | |
| 316 else: | |
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317 lfdirstate.drop(lfile) |
| 15168 | 318 lfdirstate.write() |
| 319 | |
| 320 # Cook up a new matcher that only matches regular files or | |
| 321 # standins corresponding to the big files requested by the | |
| 322 # user. Have to modify _files to prevent commit() from | |
| 323 # complaining "not tracked" for big files. | |
| 324 lfiles = lfutil.listlfiles(repo) | |
| 325 match = copy.copy(match) | |
| 326 orig_matchfn = match.matchfn | |
| 327 | |
| 328 # Check both the list of lfiles and the list of standins | |
| 329 # because if a lfile was removed, it won't be in the list of | |
| 330 # lfiles at this point | |
| 331 match._files += sorted(standins) | |
| 332 | |
| 333 actualfiles = [] | |
| 334 for f in match._files: | |
| 335 fstandin = lfutil.standin(f) | |
| 336 | |
| 337 # Ignore known lfiles and standins | |
| 338 if f in lfiles or fstandin in standins: | |
| 339 continue | |
| 340 | |
| 341 # Append directory separator to avoid collisions | |
| 342 if not fstandin.endswith(os.sep): | |
| 343 fstandin += os.sep | |
| 344 | |
| 345 # Prevalidate matching standin directories | |
| 346 if lfutil.any_(st for st in match._files if \ | |
| 347 st.startswith(fstandin)): | |
| 348 continue | |
| 349 actualfiles.append(f) | |
| 350 match._files = actualfiles | |
| 351 | |
| 352 def matchfn(f): | |
| 353 if orig_matchfn(f): | |
| 354 return f not in lfiles | |
| 355 else: | |
| 356 return f in standins | |
| 357 | |
| 358 match.matchfn = matchfn | |
| 359 return orig(text=text, user=user, date=date, match=match, | |
| 360 force=force, editor=editor, extra=extra) | |
| 361 finally: | |
| 362 wlock.release() | |
| 363 | |
| 364 def push(self, remote, force=False, revs=None, newbranch=False): | |
| 365 o = lfutil.findoutgoing(repo, remote, force) | |
| 366 if o: | |
| 367 toupload = set() | |
| 368 o = repo.changelog.nodesbetween(o, revs)[0] | |
| 369 for n in o: | |
| 370 parents = [p for p in repo.changelog.parents(n) if p != \ | |
| 371 node.nullid] | |
| 372 ctx = repo[n] | |
| 373 files = set(ctx.files()) | |
| 374 if len(parents) == 2: | |
| 375 mc = ctx.manifest() | |
| 376 mp1 = ctx.parents()[0].manifest() | |
| 377 mp2 = ctx.parents()[1].manifest() | |
| 378 for f in mp1: | |
| 379 if f not in mc: | |
| 380 files.add(f) | |
| 381 for f in mp2: | |
| 382 if f not in mc: | |
| 383 files.add(f) | |
| 384 for f in mc: | |
| 385 if mc[f] != mp1.get(f, None) or mc[f] != mp2.get(f, | |
| 386 None): | |
| 387 files.add(f) | |
| 388 | |
| 389 toupload = toupload.union(set([ctx[f].data().strip() for f\ | |
| 390 in files if lfutil.isstandin(f) and f in ctx])) | |
| 391 lfcommands.uploadlfiles(ui, self, remote, toupload) | |
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392 return super(lfiles_repo, self).push(remote, force, revs, |
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393 newbranch) |
| 15168 | 394 |
| 395 repo.__class__ = lfiles_repo | |
| 396 | |
| 397 def checkrequireslfiles(ui, repo, **kwargs): | |
| 398 if 'largefiles' not in repo.requirements and lfutil.any_( | |
| 399 lfutil.shortname+'/' in f[0] for f in repo.store.datafiles()): | |
| 400 # work around bug in mercurial 1.9 whereby requirements is a list | |
| 401 # on newly-cloned repos | |
| 402 repo.requirements = set(repo.requirements) | |
| 403 | |
| 404 repo.requirements |= set(['largefiles']) | |
| 405 repo._writerequirements() | |
| 406 | |
| 407 checkrequireslfiles(ui, repo) | |
| 408 | |
| 409 ui.setconfig('hooks', 'changegroup.lfiles', checkrequireslfiles) | |
| 410 ui.setconfig('hooks', 'commit.lfiles', checkrequireslfiles) |