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30913031d4
The home of 'Abort' is 'error' not 'util' however, a lot of code seems to be confused about that and gives all the credit to 'util' instead of the hardworking 'error'. In a spirit of equity, we break the cycle of injustice and give back to 'error' the respect it deserves. And screw that 'util' poser. For great justice.
376 lines
17 KiB
Python
376 lines
17 KiB
Python
# Copyright 2009-2010 Gregory P. Ward
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# Copyright 2009-2010 Intelerad Medical Systems Incorporated
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# Copyright 2010-2011 Fog Creek Software
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# Copyright 2010-2011 Unity Technologies
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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'''setup for largefiles repositories: reposetup'''
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import copy
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import os
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from mercurial import error, match as match_, error
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from mercurial.i18n import _
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from mercurial import scmutil, localrepo
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import lfcommands
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import lfutil
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def reposetup(ui, repo):
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# wire repositories should be given new wireproto functions
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# by "proto.wirereposetup()" via "hg.wirepeersetupfuncs"
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if not repo.local():
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return
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class lfilesrepo(repo.__class__):
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# the mark to examine whether "repo" object enables largefiles or not
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_largefilesenabled = True
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lfstatus = False
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def status_nolfiles(self, *args, **kwargs):
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return super(lfilesrepo, self).status(*args, **kwargs)
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# When lfstatus is set, return a context that gives the names
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# of largefiles instead of their corresponding standins and
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# identifies the largefiles as always binary, regardless of
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# their actual contents.
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def __getitem__(self, changeid):
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ctx = super(lfilesrepo, self).__getitem__(changeid)
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if self.lfstatus:
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class lfilesctx(ctx.__class__):
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def files(self):
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filenames = super(lfilesctx, self).files()
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return [lfutil.splitstandin(f) or f for f in filenames]
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def manifest(self):
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man1 = super(lfilesctx, self).manifest()
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class lfilesmanifest(man1.__class__):
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def __contains__(self, filename):
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orig = super(lfilesmanifest, self).__contains__
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return (orig(filename) or
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orig(lfutil.standin(filename)))
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man1.__class__ = lfilesmanifest
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return man1
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def filectx(self, path, fileid=None, filelog=None):
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orig = super(lfilesctx, self).filectx
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try:
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if filelog is not None:
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result = orig(path, fileid, filelog)
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else:
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result = orig(path, fileid)
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except error.LookupError:
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# Adding a null character will cause Mercurial to
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# identify this as a binary file.
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if filelog is not None:
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result = orig(lfutil.standin(path), fileid,
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filelog)
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else:
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result = orig(lfutil.standin(path), fileid)
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olddata = result.data
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result.data = lambda: olddata() + '\0'
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return result
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ctx.__class__ = lfilesctx
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return ctx
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# Figure out the status of big files and insert them into the
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# appropriate list in the result. Also removes standin files
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# from the listing. Revert to the original status if
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# self.lfstatus is False.
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# XXX large file status is buggy when used on repo proxy.
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# XXX this needs to be investigated.
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@localrepo.unfilteredmethod
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def status(self, node1='.', node2=None, match=None, ignored=False,
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clean=False, unknown=False, listsubrepos=False):
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listignored, listclean, listunknown = ignored, clean, unknown
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orig = super(lfilesrepo, self).status
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if not self.lfstatus:
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return orig(node1, node2, match, listignored, listclean,
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listunknown, listsubrepos)
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# some calls in this function rely on the old version of status
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self.lfstatus = False
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ctx1 = self[node1]
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ctx2 = self[node2]
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working = ctx2.rev() is None
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parentworking = working and ctx1 == self['.']
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if match is None:
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match = match_.always(self.root, self.getcwd())
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wlock = None
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try:
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try:
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# updating the dirstate is optional
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# so we don't wait on the lock
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wlock = self.wlock(False)
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except error.LockError:
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pass
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# First check if paths or patterns were specified on the
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# command line. If there were, and they don't match any
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# largefiles, we should just bail here and let super
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# handle it -- thus gaining a big performance boost.
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lfdirstate = lfutil.openlfdirstate(ui, self)
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if not match.always():
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for f in lfdirstate:
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if match(f):
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break
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else:
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return orig(node1, node2, match, listignored, listclean,
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listunknown, listsubrepos)
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# Create a copy of match that matches standins instead
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# of largefiles.
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def tostandins(files):
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if not working:
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return files
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newfiles = []
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dirstate = self.dirstate
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for f in files:
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sf = lfutil.standin(f)
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if sf in dirstate:
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newfiles.append(sf)
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elif sf in dirstate.dirs():
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# Directory entries could be regular or
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# standin, check both
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newfiles.extend((f, sf))
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else:
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newfiles.append(f)
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return newfiles
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m = copy.copy(match)
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m._files = tostandins(m._files)
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result = orig(node1, node2, m, ignored, clean, unknown,
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listsubrepos)
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if working:
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def sfindirstate(f):
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sf = lfutil.standin(f)
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dirstate = self.dirstate
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return sf in dirstate or sf in dirstate.dirs()
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match._files = [f for f in match._files
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if sfindirstate(f)]
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# Don't waste time getting the ignored and unknown
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# files from lfdirstate
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unsure, s = lfdirstate.status(match, [], False, listclean,
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False)
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(modified, added, removed, clean) = (s.modified, s.added,
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s.removed, s.clean)
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if parentworking:
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for lfile in unsure:
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standin = lfutil.standin(lfile)
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if standin not in ctx1:
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# from second parent
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modified.append(lfile)
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elif ctx1[standin].data().strip() \
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!= lfutil.hashfile(self.wjoin(lfile)):
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modified.append(lfile)
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else:
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if listclean:
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clean.append(lfile)
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lfdirstate.normal(lfile)
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else:
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tocheck = unsure + modified + added + clean
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modified, added, clean = [], [], []
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checkexec = self.dirstate._checkexec
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for lfile in tocheck:
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standin = lfutil.standin(lfile)
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if standin in ctx1:
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abslfile = self.wjoin(lfile)
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if ((ctx1[standin].data().strip() !=
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lfutil.hashfile(abslfile)) or
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(checkexec and
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('x' in ctx1.flags(standin)) !=
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bool(lfutil.getexecutable(abslfile)))):
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modified.append(lfile)
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elif listclean:
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clean.append(lfile)
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else:
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added.append(lfile)
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# at this point, 'removed' contains largefiles
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# marked as 'R' in the working context.
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# then, largefiles not managed also in the target
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# context should be excluded from 'removed'.
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removed = [lfile for lfile in removed
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if lfutil.standin(lfile) in ctx1]
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# Standins no longer found in lfdirstate has been
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# removed
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for standin in ctx1.walk(lfutil.getstandinmatcher(self)):
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lfile = lfutil.splitstandin(standin)
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if not match(lfile):
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continue
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if lfile not in lfdirstate:
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removed.append(lfile)
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# Filter result lists
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result = list(result)
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# Largefiles are not really removed when they're
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# still in the normal dirstate. Likewise, normal
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# files are not really removed if they are still in
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# lfdirstate. This happens in merges where files
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# change type.
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removed = [f for f in removed
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if f not in self.dirstate]
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result[2] = [f for f in result[2]
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if f not in lfdirstate]
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lfiles = set(lfdirstate._map)
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# Unknown files
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result[4] = set(result[4]).difference(lfiles)
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# Ignored files
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result[5] = set(result[5]).difference(lfiles)
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# combine normal files and largefiles
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normals = [[fn for fn in filelist
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if not lfutil.isstandin(fn)]
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for filelist in result]
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lfstatus = (modified, added, removed, s.deleted, [], [],
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clean)
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result = [sorted(list1 + list2)
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for (list1, list2) in zip(normals, lfstatus)]
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else: # not against working directory
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result = [[lfutil.splitstandin(f) or f for f in items]
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for items in result]
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if wlock:
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lfdirstate.write()
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finally:
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if wlock:
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wlock.release()
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self.lfstatus = True
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return scmutil.status(*result)
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def commitctx(self, ctx, *args, **kwargs):
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node = super(lfilesrepo, self).commitctx(ctx, *args, **kwargs)
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class lfilesctx(ctx.__class__):
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def markcommitted(self, node):
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orig = super(lfilesctx, self).markcommitted
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return lfutil.markcommitted(orig, self, node)
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ctx.__class__ = lfilesctx
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return node
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# Before commit, largefile standins have not had their
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# contents updated to reflect the hash of their largefile.
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# Do that here.
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def commit(self, text="", user=None, date=None, match=None,
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force=False, editor=False, extra={}):
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orig = super(lfilesrepo, self).commit
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wlock = self.wlock()
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try:
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lfcommithook = self._lfcommithooks[-1]
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match = lfcommithook(self, match)
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result = orig(text=text, user=user, date=date, match=match,
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force=force, editor=editor, extra=extra)
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return result
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finally:
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wlock.release()
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def push(self, remote, force=False, revs=None, newbranch=False):
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if remote.local():
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missing = set(self.requirements) - remote.local().supported
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if missing:
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msg = _("required features are not"
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" supported in the destination:"
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" %s") % (', '.join(sorted(missing)))
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raise error.Abort(msg)
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return super(lfilesrepo, self).push(remote, force=force, revs=revs,
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newbranch=newbranch)
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# TODO: _subdirlfs should be moved into "lfutil.py", because
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# it is referred only from "lfutil.updatestandinsbymatch"
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def _subdirlfs(self, files, lfiles):
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'''
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Adjust matched file list
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If we pass a directory to commit whose only committable files
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are largefiles, the core commit code aborts before finding
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the largefiles.
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So we do the following:
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For directories that only have largefiles as matches,
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we explicitly add the largefiles to the match list and remove
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the directory.
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In other cases, we leave the match list unmodified.
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'''
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actualfiles = []
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dirs = []
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regulars = []
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for f in files:
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if lfutil.isstandin(f + '/'):
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raise error.Abort(
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_('file "%s" is a largefile standin') % f,
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hint=('commit the largefile itself instead'))
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# Scan directories
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if os.path.isdir(self.wjoin(f)):
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dirs.append(f)
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else:
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regulars.append(f)
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for f in dirs:
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matcheddir = False
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d = self.dirstate.normalize(f) + '/'
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# Check for matched normal files
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for mf in regulars:
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if self.dirstate.normalize(mf).startswith(d):
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actualfiles.append(f)
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matcheddir = True
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break
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if not matcheddir:
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# If no normal match, manually append
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# any matching largefiles
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for lf in lfiles:
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if self.dirstate.normalize(lf).startswith(d):
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actualfiles.append(lf)
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if not matcheddir:
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# There may still be normal files in the dir, so
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# add a directory to the list, which
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# forces status/dirstate to walk all files and
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# call the match function on the matcher, even
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# on case sensitive filesystems.
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actualfiles.append('.')
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matcheddir = True
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# Nothing in dir, so readd it
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# and let commit reject it
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if not matcheddir:
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actualfiles.append(f)
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# Always add normal files
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actualfiles += regulars
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return actualfiles
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repo.__class__ = lfilesrepo
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# stack of hooks being executed before committing.
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# only last element ("_lfcommithooks[-1]") is used for each committing.
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repo._lfcommithooks = [lfutil.updatestandinsbymatch]
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# Stack of status writer functions taking "*msg, **opts" arguments
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# like "ui.status()". Only last element ("_lfstatuswriters[-1]")
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# is used to write status out.
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repo._lfstatuswriters = [ui.status]
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def prepushoutgoinghook(local, remote, outgoing):
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if outgoing.missing:
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toupload = set()
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addfunc = lambda fn, lfhash: toupload.add(lfhash)
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lfutil.getlfilestoupload(local, outgoing.missing, addfunc)
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lfcommands.uploadlfiles(ui, local, remote, toupload)
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repo.prepushoutgoinghooks.add("largefiles", prepushoutgoinghook)
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def checkrequireslfiles(ui, repo, **kwargs):
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if 'largefiles' not in repo.requirements and any(
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lfutil.shortname+'/' in f[0] for f in repo.store.datafiles()):
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repo.requirements.add('largefiles')
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repo._writerequirements()
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ui.setconfig('hooks', 'changegroup.lfiles', checkrequireslfiles,
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'largefiles')
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ui.setconfig('hooks', 'commit.lfiles', checkrequireslfiles, 'largefiles')
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