# Copyright 2009-2010 Gregory P. Ward # Copyright 2009-2010 Intelerad Medical Systems Incorporated # Copyright 2010-2011 Fog Creek Software # Copyright 2010-2011 Unity Technologies # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. '''setup for largefiles repositories: reposetup''' import copy import os from mercurial import error, manifest, match as match_, util from mercurial.i18n import _ from mercurial import scmutil, localrepo import lfcommands import lfutil def reposetup(ui, repo): # wire repositories should be given new wireproto functions # by "proto.wirereposetup()" via "hg.wirepeersetupfuncs" if not repo.local(): return class lfilesrepo(repo.__class__): # the mark to examine whether "repo" object enables largefiles or not _largefilesenabled = True lfstatus = False def status_nolfiles(self, *args, **kwargs): return super(lfilesrepo, self).status(*args, **kwargs) # When lfstatus is set, return a context that gives the names # of largefiles instead of their corresponding standins and # identifies the largefiles as always binary, regardless of # their actual contents. def __getitem__(self, changeid): ctx = super(lfilesrepo, self).__getitem__(changeid) if self.lfstatus: class lfilesmanifestdict(manifest.manifestdict): def __contains__(self, filename): orig = super(lfilesmanifestdict, self).__contains__ return orig(filename) or orig(lfutil.standin(filename)) class lfilesctx(ctx.__class__): def files(self): filenames = super(lfilesctx, self).files() return [lfutil.splitstandin(f) or f for f in filenames] def manifest(self): man1 = super(lfilesctx, self).manifest() man1.__class__ = lfilesmanifestdict return man1 def filectx(self, path, fileid=None, filelog=None): orig = super(lfilesctx, self).filectx try: if filelog is not None: result = orig(path, fileid, filelog) else: result = orig(path, fileid) except error.LookupError: # Adding a null character will cause Mercurial to # identify this as a binary file. if filelog is not None: result = orig(lfutil.standin(path), fileid, filelog) else: result = orig(lfutil.standin(path), fileid) olddata = result.data result.data = lambda: olddata() + '\0' return result ctx.__class__ = lfilesctx return ctx # Figure out the status of big files and insert them into the # appropriate list in the result. Also removes standin files # from the listing. Revert to the original status if # self.lfstatus is False. # XXX large file status is buggy when used on repo proxy. # XXX this needs to be investigated. @localrepo.unfilteredmethod def status(self, node1='.', node2=None, match=None, ignored=False, clean=False, unknown=False, listsubrepos=False): listignored, listclean, listunknown = ignored, clean, unknown orig = super(lfilesrepo, self).status if not self.lfstatus: return orig(node1, node2, match, listignored, listclean, listunknown, listsubrepos) # some calls in this function rely on the old version of status self.lfstatus = False ctx1 = self[node1] ctx2 = self[node2] working = ctx2.rev() is None parentworking = working and ctx1 == self['.'] if match is None: match = match_.always(self.root, self.getcwd()) wlock = None try: try: # updating the dirstate is optional # so we don't wait on the lock wlock = self.wlock(False) except error.LockError: pass # First check if paths or patterns were specified on the # command line. If there were, and they don't match any # largefiles, we should just bail here and let super # handle it -- thus gaining a big performance boost. lfdirstate = lfutil.openlfdirstate(ui, self) if not match.always(): for f in lfdirstate: if match(f): break else: return orig(node1, node2, match, listignored, listclean, listunknown, listsubrepos) # Create a copy of match that matches standins instead # of largefiles. def tostandins(files): if not working: return files newfiles = [] dirstate = self.dirstate for f in files: sf = lfutil.standin(f) if sf in dirstate: newfiles.append(sf) elif sf in dirstate.dirs(): # Directory entries could be regular or # standin, check both newfiles.extend((f, sf)) else: newfiles.append(f) return newfiles m = copy.copy(match) m._files = tostandins(m._files) result = orig(node1, node2, m, ignored, clean, unknown, listsubrepos) if working: def sfindirstate(f): sf = lfutil.standin(f) dirstate = self.dirstate return sf in dirstate or sf in dirstate.dirs() match._files = [f for f in match._files if sfindirstate(f)] # Don't waste time getting the ignored and unknown # files from lfdirstate unsure, s = lfdirstate.status(match, [], False, listclean, False) (modified, added, removed, clean) = (s.modified, s.added, s.removed, s.clean) if parentworking: for lfile in unsure: standin = lfutil.standin(lfile) if standin not in ctx1: # from second parent modified.append(lfile) elif ctx1[standin].data().strip() \ != lfutil.hashfile(self.wjoin(lfile)): modified.append(lfile) else: if listclean: clean.append(lfile) lfdirstate.normal(lfile) else: tocheck = unsure + modified + added + clean modified, added, clean = [], [], [] checkexec = self.dirstate._checkexec for lfile in tocheck: standin = lfutil.standin(lfile) if standin in ctx1: abslfile = self.wjoin(lfile) if ((ctx1[standin].data().strip() != lfutil.hashfile(abslfile)) or (checkexec and ('x' in ctx1.flags(standin)) != bool(lfutil.getexecutable(abslfile)))): modified.append(lfile) elif listclean: clean.append(lfile) else: added.append(lfile) # at this point, 'removed' contains largefiles # marked as 'R' in the working context. # then, largefiles not managed also in the target # context should be excluded from 'removed'. removed = [lfile for lfile in removed if lfutil.standin(lfile) in ctx1] # Standins no longer found in lfdirstate has been # removed for standin in ctx1.walk(lfutil.getstandinmatcher(self)): lfile = lfutil.splitstandin(standin) if not match(lfile): continue if lfile not in lfdirstate: removed.append(lfile) # Filter result lists result = list(result) # Largefiles are not really removed when they're # still in the normal dirstate. Likewise, normal # files are not really removed if they are still in # lfdirstate. This happens in merges where files # change type. removed = [f for f in removed if f not in self.dirstate] result[2] = [f for f in result[2] if f not in lfdirstate] lfiles = set(lfdirstate._map) # Unknown files result[4] = set(result[4]).difference(lfiles) # Ignored files result[5] = set(result[5]).difference(lfiles) # combine normal files and largefiles normals = [[fn for fn in filelist if not lfutil.isstandin(fn)] for filelist in result] lfstatus = (modified, added, removed, s.deleted, [], [], clean) result = [sorted(list1 + list2) for (list1, list2) in zip(normals, lfstatus)] else: # not against working directory result = [[lfutil.splitstandin(f) or f for f in items] for items in result] if wlock: lfdirstate.write() finally: if wlock: wlock.release() self.lfstatus = True return scmutil.status(*result) def commitctx(self, ctx, *args, **kwargs): node = super(lfilesrepo, self).commitctx(ctx, *args, **kwargs) class lfilesctx(ctx.__class__): def markcommitted(self, node): orig = super(lfilesctx, self).markcommitted return lfutil.markcommitted(orig, self, node) ctx.__class__ = lfilesctx return node # Before commit, largefile standins have not had their # contents updated to reflect the hash of their largefile. # Do that here. def commit(self, text="", user=None, date=None, match=None, force=False, editor=False, extra={}): orig = super(lfilesrepo, self).commit wlock = self.wlock() try: lfcommithook = self._lfcommithooks[-1] match = lfcommithook(self, match) result = orig(text=text, user=user, date=date, match=match, force=force, editor=editor, extra=extra) return result finally: wlock.release() def push(self, remote, force=False, revs=None, newbranch=False): if remote.local(): missing = set(self.requirements) - remote.local().supported if missing: msg = _("required features are not" " supported in the destination:" " %s") % (', '.join(sorted(missing))) raise util.Abort(msg) return super(lfilesrepo, self).push(remote, force=force, revs=revs, newbranch=newbranch) # TODO: _subdirlfs should be moved into "lfutil.py", because # it is referred only from "lfutil.updatestandinsbymatch" def _subdirlfs(self, files, lfiles): ''' Adjust matched file list If we pass a directory to commit whose only committable files are largefiles, the core commit code aborts before finding the largefiles. So we do the following: For directories that only have largefiles as matches, we explicitly add the largefiles to the match list and remove the directory. In other cases, we leave the match list unmodified. ''' actualfiles = [] dirs = [] regulars = [] for f in files: if lfutil.isstandin(f + '/'): raise util.Abort( _('file "%s" is a largefile standin') % f, hint=('commit the largefile itself instead')) # Scan directories if os.path.isdir(self.wjoin(f)): dirs.append(f) else: regulars.append(f) for f in dirs: matcheddir = False d = self.dirstate.normalize(f) + '/' # Check for matched normal files for mf in regulars: if self.dirstate.normalize(mf).startswith(d): actualfiles.append(f) matcheddir = True break if not matcheddir: # If no normal match, manually append # any matching largefiles for lf in lfiles: if self.dirstate.normalize(lf).startswith(d): actualfiles.append(lf) if not matcheddir: # There may still be normal files in the dir, so # make sure a directory is in the list, which # forces status to walk and call the match # function on the matcher. Windows does NOT # require this. actualfiles.append('.') matcheddir = True # Nothing in dir, so readd it # and let commit reject it if not matcheddir: actualfiles.append(f) # Always add normal files actualfiles += regulars return actualfiles repo.__class__ = lfilesrepo # stack of hooks being executed before committing. # only last element ("_lfcommithooks[-1]") is used for each committing. repo._lfcommithooks = [lfutil.updatestandinsbymatch] # Stack of status writer functions taking "*msg, **opts" arguments # like "ui.status()". Only last element ("_lfstatuswriters[-1]") # is used to write status out. repo._lfstatuswriters = [ui.status] def prepushoutgoinghook(local, remote, outgoing): if outgoing.missing: toupload = set() addfunc = lambda fn, lfhash: toupload.add(lfhash) lfutil.getlfilestoupload(local, outgoing.missing, addfunc) lfcommands.uploadlfiles(ui, local, remote, toupload) repo.prepushoutgoinghooks.add("largefiles", prepushoutgoinghook) def checkrequireslfiles(ui, repo, **kwargs): if 'largefiles' not in repo.requirements and util.any( lfutil.shortname+'/' in f[0] for f in repo.store.datafiles()): repo.requirements.add('largefiles') repo._writerequirements() ui.setconfig('hooks', 'changegroup.lfiles', checkrequireslfiles, 'largefiles') ui.setconfig('hooks', 'commit.lfiles', checkrequireslfiles, 'largefiles')