mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 08:47:12 +03:00
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
# verify.py - verify Mercurial revisions
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#
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# Copyright 2014 Facebook.
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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import stat
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from mercurial import error
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from mercurial import util as hgutil
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from mercurial.i18n import _
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from dulwich import diff_tree
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from dulwich.objects import Commit, S_IFGITLINK
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def verify(ui, repo, hgctx):
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'''verify that a Mercurial rev matches the corresponding Git rev
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Given a Mercurial revision that has a corresponding Git revision in the map,
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this attempts to answer whether that revision has the same contents as the
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corresponding Git revision.
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'''
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handler = repo.githandler
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gitsha = handler.map_git_get(hgctx.hex())
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if not gitsha:
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# TODO deal better with commits in the middle of octopus merges
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raise hgutil.Abort(_('no git commit found for rev %s') % hgctx,
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hint=_('if this is an octopus merge, '
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'verify against the last rev'))
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try:
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gitcommit = handler.git.get_object(gitsha)
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except KeyError:
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raise hgutil.Abort(_('git equivalent %s for rev %s not found!') %
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(gitsha, hgctx))
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if not isinstance(gitcommit, Commit):
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raise hgutil.Abort(_('git equivalent %s for rev %s is not a commit!') %
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(gitsha, hgctx))
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ui.status(_('verifying rev %s against git commit %s\n') % (hgctx, gitsha))
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failed = False
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# TODO check commit message and other metadata
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dirkind = stat.S_IFDIR
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hgfiles = set(hgctx)
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# TODO deal with submodules
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hgfiles.discard('.hgsubstate')
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hgfiles.discard('.hgsub')
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gitfiles = set()
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i = 0
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for gitfile, dummy in diff_tree.walk_trees(handler.git.object_store,
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gitcommit.tree, None):
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if gitfile.mode == dirkind:
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continue
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# TODO deal with submodules
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if (gitfile.mode == S_IFGITLINK or gitfile.path == '.hgsubstate' or
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gitfile.path == '.hgsub'):
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continue
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ui.progress('verify', i, total=len(hgfiles))
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i += 1
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gitfiles.add(gitfile.path)
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try:
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fctx = hgctx[gitfile.path]
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except error.LookupError:
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# we'll deal with this at the end
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continue
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hgflags = fctx.flags()
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gitflags = handler.convert_git_int_mode(gitfile.mode)
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if hgflags != gitflags:
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ui.write(_("file has different flags: %s (hg '%s', git '%s')\n") %
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(gitfile.path, hgflags, gitflags))
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failed = True
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if fctx.data() != handler.git[gitfile.sha].data:
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ui.write(_('difference in: %s\n') % gitfile.path)
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failed = True
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ui.progress('verify', None, total=len(hgfiles))
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if hgfiles != gitfiles:
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failed = True
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missing = gitfiles - hgfiles
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for f in sorted(missing):
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ui.write(_('file found in git but not hg: %s\n') % f)
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unexpected = hgfiles - gitfiles
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for f in sorted(unexpected):
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ui.write(_('file found in hg but not git: %s\n') % f)
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if failed:
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return 1
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else:
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return 0
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