def do_rollback(ref):
checked = Git.resolve_ref('refs/cinnabar/checked')
if ref:
sha1 = Git.resolve_ref(ref)
if not sha1:
logging.error('Invalid ref: %s', ref)
return 1
if sha1 != NULL_NODE_ID:
# Validate that the sha1 is in the history of the current metadata
metadata = Git.resolve_ref('refs/cinnabar/metadata')
while metadata and metadata != sha1:
previous_metadata = get_previous_metadata(metadata)
if checked == metadata:
checked = previous_metadata
metadata = previous_metadata
if not metadata:
logging.error('Cannot rollback to %s, it is not in the '
'history of the current metadata.', ref)
return 1
else:
metadata = Git.resolve_ref('refs/cinnabar/metadata')
if metadata:
sha1 = get_previous_metadata(metadata) or NULL_NODE_ID
else:
sha1 = NULL_NODE_ID
if checked and checked == metadata:
checked = sha1
refs = VersionedDict(
(ref, commit)
for commit, ref in Git.for_each_ref('refs/cinnabar',
'refs/notes/cinnabar')
)
for ref in refs:
if sha1 == NULL_NODE_ID or ref not in (b'refs/cinnabar/checked',
b'refs/cinnabar/broken'):
del refs[ref]
if sha1 != NULL_NODE_ID:
refs[b'refs/cinnabar/metadata'] = sha1
if checked:
refs[b'refs/cinnabar/checked'] = checked
for line in Git.ls_tree(sha1):
mode, typ, commit, path = line
refs[b'refs/cinnabar/replace/%s' % path] = commit
for status, ref, commit in refs.iterchanges():
if status == VersionedDict.REMOVED:
Git.delete_ref(ref)
else:
Git.update_ref(ref, commit)
GitHgHelper.close(rollback=False)
return 0
def do_rollback(ref):
checked = Git.resolve_ref('refs/cinnabar/checked')
if ref:
sha1 = Git.resolve_ref(ref)
if not sha1:
logging.error('Invalid ref: %s', ref)
return 1
if sha1 != NULL_NODE_ID:
# Validate that the sha1 is in the history of the current metadata
metadata = Git.resolve_ref('refs/cinnabar/metadata')
while metadata and metadata != sha1:
previous_metadata = get_previous_metadata(metadata)
if checked == metadata:
checked = previous_metadata
metadata = previous_metadata
if not metadata:
logging.error('Cannot rollback to %s, it is not in the '
'history of the current metadata.', ref)
return 1
else:
metadata = Git.resolve_ref('refs/cinnabar/metadata')
if metadata:
sha1 = get_previous_metadata(metadata) or NULL_NODE_ID
else:
sha1 = NULL_NODE_ID
if checked and checked == metadata:
checked = sha1
refs = VersionedDict(
(ref, commit)
for commit, ref in Git.for_each_ref('refs/cinnabar',
'refs/notes/cinnabar')
)
for ref in refs:
if ref not in ('refs/cinnabar/checked', 'refs/cinnabar/broken'):
del refs[ref]
if sha1 != NULL_NODE_ID:
refs['refs/cinnabar/metadata'] = sha1
if checked:
refs['refs/cinnabar/checked'] = checked
for line in Git.ls_tree(sha1):
mode, typ, commit, path = line
refs['refs/cinnabar/replace/%s' % path] = commit
for status, ref, commit in refs.iterchanges():
if status == VersionedDict.REMOVED:
Git.delete_ref(ref)
else:
Git.update_ref(ref, commit)
GitHgHelper.close(rollback=False)
return 0
def list(self, arg=None):
tags = sorted(self._store.tags())
# git fetch does a check-connection that calls
# `git rev-list --objects --stdin --not --all` with the list of
# sha1s from the list we're about to give it. With no refs on these
# exact sha1s, the rev-list can take a long time on large repos.
# So we temporarily create refs to make that rev-list faster.
for tag, ref in tags:
Git.update_ref(b'refs/cinnabar/refs/tags/' + tag, ref)
GitHgHelper.reload()
for tag, ref in tags:
self._helper.write(b'%s refs/tags/%s\n' % (ref, tag))
self._helper.write(b'\n')
self._helper.flush()
# Now remove the refs. The deletion will only actually be committed
# on the store close in main(), after git is done doing
# check-connection.
for tag, _ in tags:
Git.delete_ref(b'refs/cinnabar/refs/tags/' + tag)
def do_rollback(ref):
sha1 = Git.resolve_ref(ref)
if not sha1:
logging.error('Invalid ref: %s', ref)
return 1
if sha1 != NULL_NODE_ID:
# Validate that the sha1 is in the history of the current metadata
metadata = Git.resolve_ref('refs/cinnabar/metadata')
while metadata:
if sha1 == metadata:
break
commit = GitCommit(metadata)
flags = commit.body.split(' ')
if len(commit.parents) == 5 + ('files-meta' in flags):
metadata = commit.parents[-1]
else:
metadata = None
if not metadata:
logging.error(
'Cannot rollback to %s, it is not in the history of '
'the current metadata.', ref)
return 1
refs = VersionedDict((ref, commit) for commit, ref in Git.for_each_ref(
'refs/cinnabar', 'refs/notes/cinnabar'))
for ref in refs:
del refs[ref]
if sha1 != NULL_NODE_ID:
refs['refs/cinnabar/metadata'] = sha1
for line in Git.ls_tree(sha1):
mode, typ, commit, path = line
refs['refs/cinnabar/replace/%s' % path] = commit
for status, ref, commit in refs.iterchanges():
if status == VersionedDict.REMOVED:
Git.delete_ref(ref)
else:
Git.update_ref(ref, commit)
Git._close_update_ref()
return 0
def fsck_quick(force=False):
status = FsckStatus()
store = GitHgStore()
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
if not metadata_commit:
status.info('There does not seem to be any git-cinnabar metadata.\n'
'Is this a git-cinnabar clone?')
return 1
broken_metadata = Git.resolve_ref('refs/cinnabar/broken')
checked_metadata = Git.resolve_ref('refs/cinnabar/checked')
if checked_metadata == broken_metadata:
checked_metadata = None
if metadata_commit == checked_metadata and not force:
status.info('The git-cinnabar metadata was already checked and is '
'presumably clean.\n'
'Try `--force` if you want to check anyways.')
return 0
elif force:
checked_metadata = None
commit = GitCommit(metadata_commit)
if commit.body != 'files-meta unified-manifests-v2':
status.info(
'The git-cinnabar metadata is incompatible with this version.\n'
'Please use the git-cinnabar version it was used with last.\n')
return 1
if len(commit.parents) > 6 or len(commit.parents) < 5:
status.report('The git-cinnabar metadata seems to be corrupted in '
'unexpected ways.\n')
return 1
changesets, manifests, hg2git, git2hg, files_meta = commit.parents[:5]
commit = GitCommit(changesets)
heads = OrderedDict(
(node, branch)
for node, _, branch in (d.partition(' ')
for d in commit.body.splitlines()))
if len(heads) != len(commit.parents):
status.report('The git-cinnabar metadata seems to be corrupted in '
'unexpected ways.\n')
return 1
manifest_nodes = []
parents = None
fix_changeset_heads = False
def get_checked_metadata(num):
if not checked_metadata:
return None
commit = Git.resolve_ref('{}^{}'.format(checked_metadata, num))
if commit:
return GitCommit(commit)
checked_commit = get_checked_metadata(1)
# TODO: Check that the recorded heads are actually dag heads.
for c, changeset_node in progress_iter(
'Checking {} changeset heads',
((c, node) for c, node in izip(commit.parents, heads)
if not checked_commit or c not in checked_commit.parents)):
gitsha1 = GitHgHelper.hg2git(changeset_node)
if gitsha1 == NULL_NODE_ID:
status.report('Missing hg2git metadata for changeset %s' %
changeset_node)
continue
if gitsha1 != c:
if parents is None:
parents = set(commit.parents)
if gitsha1 not in parents:
status.report('Inconsistent metadata:\n'
' Head metadata says changeset %s maps to %s\n'
' but hg2git metadata says it maps to %s' %
(changeset_node, c, gitsha1))
continue
fix_changeset_heads = True
changeset = store._changeset(c, include_parents=True)
if not changeset:
status.report('Missing git2hg metadata for git commit %s' % c)
continue
if changeset.node != changeset_node:
if changeset.node not in heads:
status.report(
'Inconsistent metadata:\n'
' Head metadata says %s maps to changeset %s\n'
' but git2hg metadata says it maps to changeset %s' %
(c, changeset_node, changeset.node))
continue
fix_changeset_heads = True
if changeset.node != changeset.sha1:
status.report('Sha1 mismatch for changeset %s' % changeset.node)
continue
changeset_branch = changeset.branch or 'default'
if heads[changeset.node] != changeset_branch:
status.report(
'Inconsistent metadata:\n'
' Head metadata says changeset %s is in branch %s\n'
' but git2hg metadata says it is in branch %s' %
(changeset.node, heads[changeset.node], changeset_branch))
continue
manifest_nodes.append(changeset.manifest)
if status('broken'):
return 1
# Rebuilding manifests benefits from limiting the difference with
# the last rebuilt manifest. Similarly, building the list of unique
# files in all manifests benefits from that too.
# Unfortunately, the manifest heads are not ordered in a topological
# relevant matter, and the differences between two consecutive manifests
# can be much larger than they could be. The consequence is spending a
# large amount of time rebuilding the manifests and gathering the files
# list. It's actually faster to attempt to reorder them according to
# some heuristics first, such that the differences are smaller.
# Here, we use the depth from the root node(s) to reorder the manifests.
# This doesn't give the most optimal ordering, but it's already much
# faster. On a clone of multiple mozilla-* repositories with > 1400 heads,
# it's close to an order of magnitude difference on the "Checking
# manifests" loop.
depths = {}
roots = {}
manifest_queue = []
revs = []
revs.append('{}^@'.format(manifests))
if checked_metadata:
revs.append('^{}^2^@'.format(checked_metadata))
for m, _, parents in progress_iter(
'Loading {} manifests',
GitHgHelper.rev_list('--topo-order', '--reverse', '--full-history',
*revs)):
manifest_queue.append((m, parents))
if parents:
depth = {}
for p in parents:
for root, num in depths.get(p, {}).iteritems():
if root in depth:
depth[root] = max(depth[root], num + 1)
else:
depth[root] = num + 1
if depth:
depths[m] = depth
del depth
continue
depths[m] = {m: 0}
roots[m] = parents
if status('broken'):
return 1
# TODO: check that all manifest_nodes gathered above are available in the
# manifests dag, and that the dag heads are the recorded heads.
manifests_commit = GitCommit(manifests)
checked_commit = get_checked_metadata(2)
depths = [([depths[p].get(r, 0) for r in roots], p)
for p in manifests_commit.parents
if not checked_commit or p not in checked_commit.parents]
manifests_commit_parents = [p for _, p in sorted(depths)]
previous = None
all_interesting = set()
for m in progress_iter('Checking {} manifest heads',
manifests_commit_parents):
c = GitCommit(m)
if not SHA1_RE.match(c.body):
status.report('Invalid manifest metadata in git commit %s' % m)
continue
gitsha1 = GitHgHelper.hg2git(c.body)
if gitsha1 == NULL_NODE_ID:
status.report('Missing hg2git metadata for manifest %s' % c.body)
continue
if not GitHgHelper.check_manifest(c.body):
status.report('Sha1 mismatch for manifest %s' % c.body)
files = {}
if previous:
for _, _, before, after, d, path in GitHgHelper.diff_tree(
previous, m):
if d in 'AM' and before != after and \
(path, after) not in all_interesting:
files[path] = after
else:
for _, t, sha1, path in GitHgHelper.ls_tree(m, recursive=True):
if (path, sha1) not in all_interesting:
files[path] = sha1
all_interesting.update(files.iteritems())
previous = m
if status('broken'):
return 1
# Don't check files that were already there in the previously checked
# manifests.
previous = None
for parents in roots.itervalues():
for p in parents:
if previous:
for _, _, before, after, d, path in GitHgHelper.diff_tree(
previous, p):
if d in 'AM' and before != after:
all_interesting.discard((path, after))
else:
for _, t, sha1, path in GitHgHelper.ls_tree(p, recursive=True):
all_interesting.discard((path, sha1))
previous = p
progress = Progress('Checking {} files')
while all_interesting and manifest_queue:
(m, parents) = manifest_queue.pop()
changes = get_changes(m, parents, all=True)
for path, hg_file, hg_fileparents in changes:
if hg_fileparents[1:] == (hg_file, ):
continue
elif hg_fileparents[:1] == (hg_file, ):
continue
# Reaching here means the file received a modification compared
# to its parents. If it's a file we're going to check below,
# it means we don't need to check its parents if somehow they were
# going to be checked. If it's not a file we're going to check
# below, it's because it's either a file we weren't interested in
# in the first place, or it's the parent of a file we have checked.
# Either way, we aren't interested in the parents.
for p in hg_fileparents:
all_interesting.discard((path, p))
if (path, hg_file) not in all_interesting:
continue
all_interesting.remove((path, hg_file))
if not GitHgHelper.check_file(hg_file, *hg_fileparents):
p = store.manifest_path(path)
status.report('Sha1 mismatch for file %s\n'
' revision %s' % (p, hg_file))
print_parents = ' '.join(p for p in hg_fileparents
if p != NULL_NODE_ID)
if print_parents:
status.report(' with parent%s %s' %
('s' if len(print_parents) > 41 else '',
print_parents))
progress.progress()
progress.finish()
if all_interesting:
status.info('Could not find the following files:')
for path, sha1 in sorted(all_interesting):
p = store.manifest_path(path)
status.info(' %s %s' % (sha1, path))
status.info('This might be a bug in `git cinnabar fsck`. Please open '
'an issue, with the message above, on\n'
'https://github.com/glandium/git-cinnabar/issues')
return 1
if status('broken'):
status.info('Your git-cinnabar repository appears to be corrupted.\n'
'Please open an issue, with the information above, on\n'
'https://github.com/glandium/git-cinnabar/issues')
Git.update_ref('refs/cinnabar/broken', metadata_commit)
if checked_metadata:
status.info(
'\nThen please try to run `git cinnabar rollback --fsck` to '
'restore last known state, and to update from the mercurial '
'repository.')
else:
status.info('\nThen please try to run `git cinnabar reclone`.')
status.info(
'\nPlease note this may affect the commit sha1s of mercurial '
'changesets, and may require to rebase your local branches.')
status.info(
'\nAlternatively, you may start afresh with a new clone. In any '
'case, please keep this corrupted repository around for further '
'debugging.')
return 1
refresh = []
if fix_changeset_heads:
status.fix('Fixing changeset heads metadata order.')
refresh.append('refs/cinnabar/changesets')
interval_expired('fsck', 0)
store.close(refresh=refresh)
GitHgHelper._helper = False
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
Git.update_ref('refs/cinnabar/checked', metadata_commit)
return 0
def fsck(args):
'''check cinnabar metadata consistency'''
if not args.commit and not args.full:
return fsck_quick(args.force)
status = FsckStatus()
store = GitHgStore()
if args.full and args.commit:
logging.error('Cannot pass both --full and a commit')
return 1
if args.commit:
commits = set()
all_git_commits = {}
for c in args.commit:
cs = store.hg_changeset(c)
if cs:
commits.add(c)
c = cs.node
commit = GitHgHelper.hg2git(c)
if commit == NULL_NODE_ID and not cs:
status.info('Unknown commit or changeset: %s' % c)
return 1
if not cs:
cs = store.hg_changeset(commit)
commits.add(commit)
all_git_commits = GitHgHelper.rev_list('--no-walk=unsorted', *commits)
else:
all_refs = dict(
(ref, sha1) for sha1, ref in Git.for_each_ref('refs/cinnabar'))
if 'refs/cinnabar/metadata' in all_refs:
git_heads = '%s^^@' % all_refs['refs/cinnabar/metadata']
else:
assert False
all_git_commits = GitHgHelper.rev_list('--topo-order',
'--full-history', '--reverse',
git_heads)
dag = gitdag()
GitHgHelper.reset_heads('manifests')
full_file_check = FileFindParents.logger.isEnabledFor(logging.DEBUG)
for node, tree, parents in progress_iter('Checking {} changesets',
all_git_commits):
node = store._replace.get(node, node)
hg_node = store.hg_changeset(node)
if not hg_node:
status.report('Missing note for git commit: ' + node)
continue
GitHgHelper.seen('git2hg', node)
changeset_data = store.changeset(hg_node)
changeset = changeset_data.node
GitHgHelper.seen('hg2git', changeset)
changeset_ref = store.changeset_ref(changeset)
if not changeset_ref:
status.report('Missing changeset in hg2git branch: %s' % changeset)
continue
elif str(changeset_ref) != node:
status.report('Commit mismatch for changeset %s\n'
' hg2git: %s\n commit: %s' %
(changeset, changeset_ref, node))
hg_changeset = store.changeset(changeset, include_parents=True)
if hg_changeset.node != hg_changeset.sha1:
status.report('Sha1 mismatch for changeset %s' % changeset)
dag.add(hg_changeset.node,
(hg_changeset.parent1, hg_changeset.parent2),
changeset_data.branch or 'default')
raw_changeset = Changeset.from_git_commit(node)
patcher = ChangesetPatcher.from_diff(raw_changeset, changeset_data)
if patcher != store.read_changeset_data(node):
status.fix('Adjusted changeset metadata for %s' % changeset)
GitHgHelper.set('changeset', changeset, NULL_NODE_ID)
GitHgHelper.set('changeset', changeset, node)
GitHgHelper.put_blob(patcher, want_sha1=False)
GitHgHelper.set('changeset-metadata', changeset, NULL_NODE_ID)
GitHgHelper.set('changeset-metadata', changeset, ':1')
manifest = changeset_data.manifest
if GitHgHelper.seen('hg2git', manifest) or manifest == NULL_NODE_ID:
continue
manifest_ref = store.manifest_ref(manifest)
if not manifest_ref:
status.report('Missing manifest in hg2git branch: %s' % manifest)
parents = tuple(
store.changeset(p).manifest for p in hg_changeset.parents)
git_parents = tuple(
store.manifest_ref(p) for p in parents if p != NULL_NODE_ID)
# This doesn't change the value but makes the helper track the manifest
# dag.
GitHgHelper.set('manifest', manifest, manifest_ref)
if not GitHgHelper.check_manifest(manifest):
status.report('Sha1 mismatch for manifest %s' % manifest)
manifest_commit_parents = GitCommit(manifest_ref).parents
if sorted(manifest_commit_parents) != sorted(git_parents):
# TODO: better error
status.report(
'%s(%s) %s != %s' %
(manifest, manifest_ref, manifest_commit_parents, git_parents))
# TODO: check that manifest content matches changeset content
changes = get_changes(manifest_ref, git_parents)
for path, hg_file, hg_fileparents in changes:
if hg_file != NULL_NODE_ID and (hg_file == HG_EMPTY_FILE
or GitHgHelper.seen(
'hg2git', hg_file)):
if full_file_check:
file = store.file(hg_file, hg_fileparents, git_parents,
store.manifest_path(path))
valid = file.node == file.sha1
else:
valid = GitHgHelper.check_file(hg_file, *hg_fileparents)
if not valid:
status.report('Sha1 mismatch for file %s in manifest %s' %
(hg_file, manifest_ref))
if not args.commit and not status('broken'):
store_manifest_heads = set(store._manifest_heads_orig)
manifest_heads = set(GitHgHelper.heads('manifests'))
if store_manifest_heads != manifest_heads:
def iter_manifests(a, b):
for h in a - b:
yield h
for h in b:
yield '^%s' % h
for m, t, p in GitHgHelper.rev_list(
'--topo-order', '--full-history', '--reverse',
*iter_manifests(manifest_heads, store_manifest_heads)):
status.fix('Missing manifest commit in manifest branch: %s' %
m)
for m, t, p in GitHgHelper.rev_list(
'--topo-order', '--full-history', '--reverse',
*iter_manifests(store_manifest_heads, manifest_heads)):
status.fix('Removing metadata commit %s with no corresponding '
'changeset' % (m))
for h in store_manifest_heads - manifest_heads:
if GitHgHelper.seen('hg2git', store.hg_manifest(h)):
status.fix('Removing non-head reference to %s in manifests'
' metadata.' % h)
dangling = ()
if not args.commit and not status('broken'):
dangling = GitHgHelper.dangling('hg2git')
for obj in dangling:
status.fix('Removing dangling metadata for ' + obj)
# Theoretically, we should figure out if they are files, manifests
# or changesets and set the right variable accordingly, but in
# practice, it makes no difference. Reevaluate when GitHgStore.close
# is modified, though.
GitHgHelper.set('file', obj, NULL_NODE_ID)
GitHgHelper.set('file-meta', obj, NULL_NODE_ID)
if not args.commit and not status('broken'):
dangling = GitHgHelper.dangling('git2hg')
for c in dangling:
status.fix('Removing dangling note for commit ' + c)
GitHgHelper.set('changeset-metadata', c, NULL_NODE_ID)
if status('broken'):
status.info(
'Your git-cinnabar repository appears to be corrupted. There\n'
'are known issues in older revisions that have been fixed.\n'
'Please try running the following command to reset:\n'
' git cinnabar reclone\n\n'
'Please note this command may change the commit sha1s. Your\n'
'local branches will however stay untouched.\n'
'Please report any corruption that fsck would detect after a\n'
'reclone.')
if not args.commit:
status.info('Checking head references...')
computed_heads = defaultdict(set)
for branch, head in dag.all_heads():
computed_heads[branch].add(head)
for branch in sorted(dag.tags()):
stored_heads = store.heads({branch})
for head in computed_heads[branch] - stored_heads:
status.fix('Adding missing head %s in branch %s' %
(head, branch))
store.add_head(head)
for head in stored_heads - computed_heads[branch]:
status.fix('Removing non-head reference to %s in branch %s' %
(head, branch))
del store._hgheads[head]
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
if status('broken'):
Git.update_ref('refs/cinnabar/broken', metadata_commit)
return 1
if args.full:
Git.update_ref('refs/cinnabar/checked', metadata_commit)
interval_expired('fsck', 0)
store.close()
if status('fixed'):
return 2
return 0
def fsck(args):
parser = argparse.ArgumentParser()
parser.add_argument(
'--manifests', action='store_true',
help='Validate manifests hashes')
parser.add_argument(
'--files', action='store_true',
help='Validate files hashes')
parser.add_argument(
'commit', nargs='*',
help='Specific commit or changeset to check')
args = parser.parse_args(args)
status = {
'broken': False,
'fixed': False,
}
def info(message):
sys.stderr.write('\r')
print message
def fix(message):
status['fixed'] = True
info(message)
def report(message):
status['broken'] = True
info(message)
store = GitHgStore()
store.init_fast_import(lambda: FastImport())
if args.commit:
all_hg2git = {}
all_notes = set()
commits = set()
all_git_commits = {}
for c in args.commit:
data = store.read_changeset_data(c)
if data:
all_notes.add(c)
commits.add(c)
c = data['changeset']
commit = GitHgHelper.hg2git(c)
if commit == NULL_NODE_ID and not data:
info('Unknown commit or changeset: %s' % c)
return 1
if commit != NULL_NODE_ID:
all_hg2git[c] = commit, 'commit'
if not data:
data = store.read_changeset_data(commit)
commits.add(commit)
if data:
all_notes.add(commit)
all_git_commits = Git.iter(
'log', '--no-walk=unsorted', '--stdin', '--format=%T %H',
stdin=commits)
else:
all_hg2git = {
path.replace('/', ''): (filesha1, intern(typ))
for mode, typ, filesha1, path in
progress_iter('Reading %d mercurial to git mappings',
Git.ls_tree('refs/cinnabar/hg2git', recursive=True))
}
all_notes = set(path.replace('/', '') for mode, typ, filesha1, path in
progress_iter(
'Reading %d commit to changeset mappings',
Git.ls_tree('refs/notes/cinnabar',
recursive=True)))
manifest_commits = OrderedDict((m, None) for m in progress_iter(
'Reading %d manifest trees',
Git.iter('rev-list', '--full-history',
'--topo-order', 'refs/cinnabar/manifest'))
)
all_git_heads = Git.for_each_ref('refs/cinnabar/branches',
format='%(refname)')
all_git_commits = Git.iter('log', '--topo-order', '--full-history',
'--reverse', '--stdin', '--format=%T %H',
stdin=all_git_heads)
store._hg2git_cache = {p: s for p, (s, t) in all_hg2git.iteritems()}
seen_changesets = set()
seen_manifests = set()
seen_manifest_refs = {}
seen_files = set()
seen_notes = set()
hg_manifest = None
dag = gitdag()
for line in progress_iter('Checking %d changesets', all_git_commits):
tree, node = line.split(' ')
if node not in all_notes:
report('Missing note for git commit: ' + node)
continue
seen_notes.add(node)
changeset_data = store.read_changeset_data(node)
changeset = changeset_data['changeset']
if 'extra' in changeset_data:
extra = changeset_data['extra']
header, message = GitHgHelper.cat_file(
'commit', node).split('\n\n', 1)
header = dict(l.split(' ', 1) for l in header.splitlines())
if 'committer' in extra:
committer_info = store.hg_author_info(header['committer'])
committer = '%s %d %d' % committer_info
if (committer != extra['committer'] and
header['committer'] != extra['committer'] and
committer_info[0] != extra['committer']):
report('Committer mismatch between commit and metadata for'
' changeset %s' % changeset)
if committer == extra['committer']:
fix('Fixing useless committer metadata for changeset %s'
% changeset)
del changeset_data['extra']['committer']
store._changesets[changeset] = LazyString(node)
if header['committer'] != header['author'] and not extra:
fix('Fixing useless empty extra metadata for changeset %s'
% changeset)
del changeset_data['extra']
store._changesets[changeset] = LazyString(node)
seen_changesets.add(changeset)
changeset_ref = store.changeset_ref(changeset)
if not changeset_ref:
report('Missing changeset in hg2git branch: %s' % changeset)
elif str(changeset_ref) != node:
report('Commit mismatch for changeset %s\n'
' hg2git: %s\n commit: %s'
% (changeset, changeset_ref, node))
hg_changeset = store.changeset(changeset, include_parents=True)
sha1 = hg_changeset.sha1
if hg_changeset.node != sha1:
try_fixup = False
if (changeset, sha1) in (
('8c557b7c03a4a753e5c163038f04862e9f65fce1',
'249b59139de8e08abeb6c4e261a137c756e7af0e'),
('ffdee4a4eb7fc7cae80dfc4cb2fe0c3178773dcf',
'415e9d2eac83d508bf58a4df585c5f6b2b0f44ed'),
):
header = hg_changeset.data.split('\n', 4)
start = sum(len(h) for h in header[:3]) + 1
changeset_data['patch'] = ((start, start + 1, '1'),)
try_fixup = True
# Some know cases of corruptions involve a whitespace after the
# timezone. Adding an empty extra metadata works around those.
elif 'extra' not in changeset_data:
changeset_data['extra'] = {}
try_fixup = True
if try_fixup:
hg_changeset = store.changeset(changeset, include_parents=True)
sha1 = hg_changeset.sha1
if hg_changeset.node == sha1:
fix('Fixing known sha1 mismatch for changeset %s' %
changeset)
store._changesets[changeset] = LazyString(node)
if hg_changeset.node != sha1:
report('Sha1 mismatch for changeset %s' % changeset)
dag.add(hg_changeset.node,
(hg_changeset.parent1, hg_changeset.parent2),
changeset_data.get('extra', {}).get('branch', 'default'))
manifest = changeset_data['manifest']
if manifest in seen_manifests:
continue
seen_manifests.add(manifest)
manifest_ref = store.manifest_ref(manifest)
if manifest_ref:
seen_manifest_refs[manifest_ref] = manifest
if not manifest_ref:
report('Missing manifest in hg2git branch: %s' % manifest)
elif not args.commit and manifest_ref not in manifest_commits:
report('Missing manifest commit in manifest branch: %s' %
manifest_ref)
if args.manifests or args.files:
parents = tuple(
store.read_changeset_data(store.changeset_ref(p))['manifest']
for p in (hg_changeset.parent1, hg_changeset.parent2)
if p != NULL_NODE_ID
)
if args.manifests:
try:
with GitHgHelper.query('check-manifest', manifest,
*parents) as stdout:
if stdout.readline().strip() != 'ok':
report('Sha1 mismatch for manifest %s' % manifest)
except NoHelperException:
hg_manifest = store.manifest(manifest)
hg_manifest.set_parents(*parents)
if hg_manifest.node != hg_manifest.sha1:
report('Sha1 mismatch for manifest %s' % manifest)
git_ls = one(Git.ls_tree(manifest_ref, 'git'))
if git_ls:
mode, typ, sha1, path = git_ls
else:
header, message = GitHgHelper.cat_file(
'commit', manifest_ref).split('\n\n', 1)
header = dict(l.split(' ', 1) for l in header.splitlines())
if header['tree'] == EMPTY_TREE:
sha1 = EMPTY_TREE
else:
report('Missing git tree in manifest commit %s' % manifest_ref)
sha1 = None
if sha1 and sha1 != tree:
report('Tree mismatch between manifest commit %s and commit %s'
% (manifest_ref, node))
if args.files:
changes = get_changes(
manifest_ref, tuple(store.manifest_ref(p) for p in parents),
'hg')
for path, hg_file, hg_fileparents in changes:
if hg_file != NULL_NODE_ID and hg_file not in seen_files:
file = store.file(hg_file)
file.set_parents(*hg_fileparents)
if file.node != file.sha1:
report('Sha1 mismatch for file %s in manifest %s'
% (hg_file, manifest_ref))
seen_files.add(hg_file)
if args.files:
all_hg2git = set(all_hg2git.iterkeys())
else:
all_hg2git = set(k for k, (s, t) in all_hg2git.iteritems()
if t == 'commit')
adjusted = {}
if not args.commit:
dangling = set(manifest_commits) - set(seen_manifest_refs)
if dangling:
def iter_manifests():
removed_one = False
yielded = False
previous = None
for obj in reversed(manifest_commits):
if obj in dangling:
fix('Removing metadata commit %s with no hg2git entry'
% obj)
removed_one = True
else:
if removed_one:
yield obj, previous
yielded = True
previous = obj
if removed_one and not yielded:
yield obj, False
for obj, parent in progress_iter('Adjusting %d metadata commits',
iter_manifests()):
mark = store._fast_import.new_mark()
if parent is False:
Git.update_ref('refs/cinnabar/manifest', obj)
continue
elif parent:
parents = (adjusted.get(parent, parent),)
with store._fast_import.commit(
ref='refs/cinnabar/manifest',
parents=parents, mark=mark) as commit:
mode, typ, tree, path = store._fast_import.ls(obj)
commit.filemodify('', tree, typ='tree')
adjusted[obj] = Mark(mark)
dangling = all_hg2git - seen_changesets - seen_manifests - seen_files
if dangling or adjusted:
with store._fast_import.commit(
ref='refs/cinnabar/hg2git',
parents=('refs/cinnabar/hg2git^0',)) as commit:
for obj in dangling:
fix('Removing dangling metadata for ' + obj)
commit.filedelete(sha1path(obj))
for obj, mark in progress_iter(
'Updating hg2git for %d metadata commits',
adjusted.iteritems()):
commit.filemodify(sha1path(seen_manifest_refs[obj]), mark,
typ='commit')
dangling = all_notes - seen_notes
if dangling:
with store._fast_import.commit(
ref='refs/notes/cinnabar',
parents=('refs/notes/cinnabar^0',)) as commit:
for c in dangling:
fix('Removing dangling note for commit ' + c)
# That's brute force, but meh.
for l in range(0, 10):
commit.filedelete(sha1path(c, l))
if status['broken']:
info('Your git-cinnabar repository appears to be corrupted. There\n'
'are known issues in older revisions that have been fixed.\n'
'Please try running the following command to reset:\n'
' git cinnabar reclone\n\n'
'Please note this command may change the commit sha1s. Your\n'
'local branches will however stay untouched.\n'
'Please report any corruption that fsck would detect after a\n'
'reclone.')
if not args.commit:
info('Checking head references...')
computed_heads = defaultdict(set)
for branch, head in dag.all_heads():
computed_heads[branch].add(head)
for branch in sorted(dag.tags()):
stored_heads = store.heads({branch})
for head in computed_heads[branch] - stored_heads:
fix('Adding missing head %s in branch %s' %
(head, branch))
store.add_head(head)
for head in stored_heads - computed_heads[branch]:
fix('Removing non-head reference to %s in branch %s' %
(head, branch))
store._hgheads.remove((branch, head))
store.close()
if status['broken']:
return 1
if status['fixed']:
return 2
return 0
def import_(self, *refs):
# If anything wrong happens at any time, we risk git picking
# the existing refs/cinnabar refs, so remove them preventively.
for sha1, ref in Git.for_each_ref('refs/cinnabar/refs/heads',
'refs/cinnabar/hg',
'refs/cinnabar/HEAD'):
Git.delete_ref(ref)
def resolve_head(head):
if head.startswith('refs/heads/branches/'):
head = head[20:]
if head[-4:] == '/tip':
return self._branchmap.tip(unquote(head[:-4]))
return head[-40:]
if head.startswith('refs/heads/bookmarks/'):
head = head[21:]
return self._bookmarks[unquote(head)]
if head.startswith('hg/heads/'):
branch, sha1 = head[9:].rsplit('/', 1)
return sha1
if head.startswith('hg/tips/'):
return self._branchmap.tip(unquote(head[8:]))
if head.startswith('hg/bookmarks/'):
return self._bookmarks[unquote(heads[13:])]
if head.startswith('hg/revs/'):
return head[8:]
if head == 'HEAD':
return (self._bookmarks.get('@') or
self._branchmap.tip('default'))
return None
wanted_refs = {k: v for k, v in (
(h, resolve_head(h)) for h in refs) if v}
heads = wanted_refs.values()
if not heads:
heads = self._branchmap.heads()
try:
# Mercurial can be an order of magnitude slower when creating
# a bundle when not giving topological heads, which some of
# the branch heads might not be.
# http://bz.selenic.com/show_bug.cgi?id=4595
# So, when we're pulling all branch heads, just ask for the
# topological heads instead.
# `heads` might contain known heads, if e.g. the remote has
# never been pulled from, but we happen to have some of its
# heads locally already.
if self._has_unknown_heads:
unknown_heads = self._branchmap.unknown_heads()
if set(heads).issuperset(unknown_heads):
heads = set(self._branchmap.heads()) & unknown_heads
self._store.init_fast_import()
getbundle(self._repo, self._store, heads,
self._branchmap.names())
except:
wanted_refs = {}
raise
finally:
for ref, value in wanted_refs.iteritems():
ref = 'refs/cinnabar/' + ref
Git.update_ref(ref, self._store.changeset_ref(value))
self._store.close()
self._helper.write('done\n')
self._helper.flush()
if self._remote.name:
if Git.config('fetch.prune', self._remote.name) != 'true':
prune = 'remote.%s.prune' % self._remote.name
sys.stderr.write(
'It is recommended that you set "%(conf)s" or '
'"fetch.prune" to "true".\n'
' git config %(conf)s true\n'
'or\n'
' git config fetch.prune true\n'
% {'conf': prune}
)
if self._store.tag_changes:
sys.stderr.write(
'\nRun the following command to update remote tags:\n')
if self._remote.name:
sys.stderr.write(
' git remote update %s\n' % self._remote.name)
else:
sys.stderr.write(
' git fetch --tags %s\n' % self._remote.git_url)
def import_(self, *refs):
# If anything wrong happens at any time, we risk git picking
# the existing refs/cinnabar refs, so remove them preventively.
for sha1, ref in Git.for_each_ref('refs/cinnabar/refs/heads',
'refs/cinnabar/hg',
'refs/cinnabar/HEAD'):
Git.delete_ref(ref)
def resolve_head(head):
resolved = self._refs.get(head)
if resolved is None:
return resolved
if resolved.startswith('@'):
return self._refs.get(resolved[1:])
return resolved
wanted_refs = {
k: v
for k, v in ((h, resolve_head(h)) for h in refs) if v
}
heads = wanted_refs.values()
if not heads:
heads = self._branchmap.heads()
try:
# Mercurial can be an order of magnitude slower when creating
# a bundle when not giving topological heads, which some of
# the branch heads might not be.
# http://bz.selenic.com/show_bug.cgi?id=4595
# So, when we're pulling all branch heads, just ask for the
# topological heads instead.
# `heads` might contain known heads, if e.g. the remote has
# never been pulled from, but we happen to have some of its
# heads locally already.
if self._has_unknown_heads:
unknown_heads = self._branchmap.unknown_heads()
if set(heads).issuperset(unknown_heads):
heads = set(self._branchmap.heads()) & unknown_heads
getbundle(self._repo, self._store, heads,
self._branchmap.names())
except Exception:
wanted_refs = {}
raise
finally:
for ref, value in wanted_refs.iteritems():
ref = 'refs/cinnabar/' + ref
Git.update_ref(ref, self._store.changeset_ref(value))
self._store.close()
self._helper.write('done\n')
self._helper.flush()
if self._remote.name:
if Git.config('fetch.prune', self._remote.name) != 'true':
prune = 'remote.%s.prune' % self._remote.name
sys.stderr.write(
'It is recommended that you set "%(conf)s" or '
'"fetch.prune" to "true".\n'
' git config %(conf)s true\n'
'or\n'
' git config fetch.prune true\n' % {'conf': prune})
if self._store.tag_changes:
sys.stderr.write('\nRun the following command to update tags:\n')
sys.stderr.write(' git fetch --tags hg::tags: tag "*"\n')
def fsck(args):
parser = argparse.ArgumentParser()
parser.add_argument('--manifests',
action='store_true',
help='Validate manifests hashes')
parser.add_argument('--files',
action='store_true',
help='Validate files hashes')
parser.add_argument('commit',
nargs='*',
help='Specific commit or changeset to check')
args = parser.parse_args(args)
status = {
'broken': False,
'fixed': False,
}
def info(message):
sys.stderr.write('\r')
print message
def fix(message):
status['fixed'] = True
info(message)
def report(message):
status['broken'] = True
info(message)
store = GitHgStore()
store.init_fast_import(lambda: FastImport())
if args.commit:
all_hg2git = {}
all_notes = set()
commits = set()
all_git_commits = {}
for c in args.commit:
data = store.read_changeset_data(c)
if data:
all_notes.add(c)
commits.add(c)
c = data['changeset']
commit = GitHgHelper.hg2git(c)
if commit == NULL_NODE_ID and not data:
info('Unknown commit or changeset: %s' % c)
return 1
if commit != NULL_NODE_ID:
all_hg2git[c] = commit, 'commit'
if not data:
data = store.read_changeset_data(commit)
commits.add(commit)
if data:
all_notes.add(commit)
all_git_commits = Git.iter('log',
'--no-walk=unsorted',
'--stdin',
'--format=%T %H',
stdin=commits)
else:
all_hg2git = {
path.replace('/', ''): (filesha1, intern(typ))
for mode, typ, filesha1, path in progress_iter(
'Reading %d mercurial to git mappings',
Git.ls_tree('refs/cinnabar/hg2git', recursive=True))
}
all_notes = set(
path.replace('/', '')
for mode, typ, filesha1, path in progress_iter(
'Reading %d commit to changeset mappings',
Git.ls_tree('refs/notes/cinnabar', recursive=True)))
manifest_commits = OrderedDict((m, None) for m in progress_iter(
'Reading %d manifest trees',
Git.iter('rev-list', '--full-history', '--topo-order',
'refs/cinnabar/manifest')))
all_git_heads = Git.for_each_ref('refs/cinnabar/branches',
format='%(refname)')
all_git_commits = Git.iter('log',
'--topo-order',
'--full-history',
'--reverse',
'--stdin',
'--format=%T %H',
stdin=all_git_heads)
store._hg2git_cache = {p: s for p, (s, t) in all_hg2git.iteritems()}
seen_changesets = set()
seen_manifests = set()
seen_manifest_refs = {}
seen_files = set()
seen_notes = set()
hg_manifest = None
dag = gitdag()
for line in progress_iter('Checking %d changesets', all_git_commits):
tree, node = line.split(' ')
if node not in all_notes:
report('Missing note for git commit: ' + node)
continue
seen_notes.add(node)
changeset_data = store.read_changeset_data(node)
changeset = changeset_data['changeset']
if 'extra' in changeset_data:
extra = changeset_data['extra']
header, message = GitHgHelper.cat_file('commit',
node).split('\n\n', 1)
header = dict(l.split(' ', 1) for l in header.splitlines())
if 'committer' in extra:
committer_info = store.hg_author_info(header['committer'])
committer = '%s %d %d' % committer_info
if (committer != extra['committer']
and header['committer'] != extra['committer']
and committer_info[0] != extra['committer']):
report('Committer mismatch between commit and metadata for'
' changeset %s' % changeset)
if committer == extra['committer']:
fix('Fixing useless committer metadata for changeset %s' %
changeset)
del changeset_data['extra']['committer']
store._changesets[changeset] = LazyString(node)
if header['committer'] != header['author'] and not extra:
fix('Fixing useless empty extra metadata for changeset %s' %
changeset)
del changeset_data['extra']
store._changesets[changeset] = LazyString(node)
seen_changesets.add(changeset)
changeset_ref = store.changeset_ref(changeset)
if not changeset_ref:
report('Missing changeset in hg2git branch: %s' % changeset)
elif str(changeset_ref) != node:
report('Commit mismatch for changeset %s\n'
' hg2git: %s\n commit: %s' %
(changeset, changeset_ref, node))
hg_changeset = store.changeset(changeset, include_parents=True)
sha1 = hg_changeset.sha1
if hg_changeset.node != sha1:
try_fixup = False
if (changeset, sha1) in (
('8c557b7c03a4a753e5c163038f04862e9f65fce1',
'249b59139de8e08abeb6c4e261a137c756e7af0e'),
('ffdee4a4eb7fc7cae80dfc4cb2fe0c3178773dcf',
'415e9d2eac83d508bf58a4df585c5f6b2b0f44ed'),
):
header = hg_changeset.data.split('\n', 4)
start = sum(len(h) for h in header[:3]) + 1
changeset_data['patch'] = ((start, start + 1, '1'), )
try_fixup = True
# Some know cases of corruptions involve a whitespace after the
# timezone. Adding an empty extra metadata works around those.
elif 'extra' not in changeset_data:
changeset_data['extra'] = {}
try_fixup = True
if try_fixup:
hg_changeset = store.changeset(changeset, include_parents=True)
sha1 = hg_changeset.sha1
if hg_changeset.node == sha1:
fix('Fixing known sha1 mismatch for changeset %s' %
changeset)
store._changesets[changeset] = LazyString(node)
if hg_changeset.node != sha1:
report('Sha1 mismatch for changeset %s' % changeset)
dag.add(hg_changeset.node,
(hg_changeset.parent1, hg_changeset.parent2),
changeset_data.get('extra', {}).get('branch', 'default'))
manifest = changeset_data['manifest']
if manifest in seen_manifests:
continue
seen_manifests.add(manifest)
manifest_ref = store.manifest_ref(manifest)
if manifest_ref:
seen_manifest_refs[manifest_ref] = manifest
if not manifest_ref:
report('Missing manifest in hg2git branch: %s' % manifest)
elif not args.commit and manifest_ref not in manifest_commits:
report('Missing manifest commit in manifest branch: %s' %
manifest_ref)
if args.manifests or args.files:
parents = tuple(
store.read_changeset_data(store.changeset_ref(p))['manifest']
for p in (hg_changeset.parent1, hg_changeset.parent2)
if p != NULL_NODE_ID)
if args.manifests:
try:
with GitHgHelper.query('check-manifest', manifest,
*parents) as stdout:
if stdout.readline().strip() != 'ok':
report('Sha1 mismatch for manifest %s' % manifest)
except NoHelperException:
hg_manifest = store.manifest(manifest)
hg_manifest.set_parents(*parents)
if hg_manifest.node != hg_manifest.sha1:
report('Sha1 mismatch for manifest %s' % manifest)
git_ls = one(Git.ls_tree(manifest_ref, 'git'))
if git_ls:
mode, typ, sha1, path = git_ls
else:
header, message = GitHgHelper.cat_file('commit',
manifest_ref).split(
'\n\n', 1)
header = dict(l.split(' ', 1) for l in header.splitlines())
if header['tree'] == EMPTY_TREE:
sha1 = EMPTY_TREE
else:
report('Missing git tree in manifest commit %s' % manifest_ref)
sha1 = None
if sha1 and sha1 != tree:
report('Tree mismatch between manifest commit %s and commit %s' %
(manifest_ref, node))
if args.files:
changes = get_changes(
manifest_ref, tuple(store.manifest_ref(p) for p in parents),
'hg')
for path, hg_file, hg_fileparents in changes:
if hg_file != NULL_NODE_ID and hg_file not in seen_files:
file = store.file(hg_file)
file.set_parents(*hg_fileparents)
if file.node != file.sha1:
report('Sha1 mismatch for file %s in manifest %s' %
(hg_file, manifest_ref))
seen_files.add(hg_file)
if args.files:
all_hg2git = set(all_hg2git.iterkeys())
else:
all_hg2git = set(k for k, (s, t) in all_hg2git.iteritems()
if t == 'commit')
adjusted = {}
if not args.commit:
dangling = set(manifest_commits) - set(seen_manifest_refs)
if dangling:
def iter_manifests():
removed_one = False
yielded = False
previous = None
for obj in reversed(manifest_commits):
if obj in dangling:
fix('Removing metadata commit %s with no hg2git entry'
% obj)
removed_one = True
else:
if removed_one:
yield obj, previous
yielded = True
previous = obj
if removed_one and not yielded:
yield obj, False
for obj, parent in progress_iter('Adjusting %d metadata commits',
iter_manifests()):
mark = store._fast_import.new_mark()
if parent is False:
Git.update_ref('refs/cinnabar/manifest', obj)
continue
elif parent:
parents = (adjusted.get(parent, parent), )
with store._fast_import.commit(ref='refs/cinnabar/manifest',
parents=parents,
mark=mark) as commit:
mode, typ, tree, path = store._fast_import.ls(obj)
commit.filemodify('', tree, typ='tree')
adjusted[obj] = Mark(mark)
dangling = all_hg2git - seen_changesets - seen_manifests - seen_files
if dangling or adjusted:
with store._fast_import.commit(
ref='refs/cinnabar/hg2git',
parents=('refs/cinnabar/hg2git^0', )) as commit:
for obj in dangling:
fix('Removing dangling metadata for ' + obj)
commit.filedelete(sha1path(obj))
for obj, mark in progress_iter(
'Updating hg2git for %d metadata commits',
adjusted.iteritems()):
commit.filemodify(sha1path(seen_manifest_refs[obj]),
mark,
typ='commit')
dangling = all_notes - seen_notes
if dangling:
with store._fast_import.commit(
ref='refs/notes/cinnabar',
parents=('refs/notes/cinnabar^0', )) as commit:
for c in dangling:
fix('Removing dangling note for commit ' + c)
# That's brute force, but meh.
for l in range(0, 10):
commit.filedelete(sha1path(c, l))
if status['broken']:
info('Your git-cinnabar repository appears to be corrupted. There\n'
'are known issues in older revisions that have been fixed.\n'
'Please try running the following command to reset:\n'
' git cinnabar reclone\n\n'
'Please note this command may change the commit sha1s. Your\n'
'local branches will however stay untouched.\n'
'Please report any corruption that fsck would detect after a\n'
'reclone.')
if not args.commit:
info('Checking head references...')
computed_heads = defaultdict(set)
for branch, head in dag.all_heads():
computed_heads[branch].add(head)
for branch in sorted(dag.tags()):
stored_heads = store.heads({branch})
for head in computed_heads[branch] - stored_heads:
fix('Adding missing head %s in branch %s' % (head, branch))
store.add_head(head)
for head in stored_heads - computed_heads[branch]:
fix('Removing non-head reference to %s in branch %s' %
(head, branch))
store._hgheads.remove((branch, head))
store.close()
if status['broken']:
return 1
if status['fixed']:
return 2
return 0
def main(args):
logger = logging.getLogger('-')
logger.info(args)
assert len(args) == 2
remote, url = args
git_dir = os.environ.get('GIT_DIR')
if Git.config('core.ignorecase', 'bool') == 'true':
sys.stderr.write(
'Your git configuration has core.ignorecase set to "true".\n'
'Usually, this means git detected the file system is case '
'insensitive.\n'
'Git-cinnabar does not support this setup.\n'
'Either use a case sensitive file system or set '
'core.ignorecase to "false".\n'
)
git_work_tree = os.path.dirname(git_dir)
if os.path.abspath(os.getcwd() + os.sep).startswith(
os.path.abspath(git_work_tree) + os.sep) or \
remote == 'hg::' + url or tuple(
Git.for_each_ref('refs/remotes/%s' % remote)):
sys.stderr.write(
'Use the following command to reclone:\n'
' git cinnabar reclone\n'
)
else:
sys.stderr.write(
'Use the following command to clone:\n'
' git -c core.ignorecase=false clone%(args)s hg::%(url)s '
'%(dir)s\n'
% {
'dir': git_work_tree,
'url': url,
'args': ' -o ' + remote if remote != 'origin' else ''
}
)
return 1
repo = get_repo(url)
store = GitHgStore()
logger.info(LazyString(lambda: '%s' % store.heads()))
helper = IOLogger(logging.getLogger('remote-helper'),
sys.stdin, sys.stdout)
branchmap = None
bookmarks = {}
HEAD = 'branches/default/tip'
while True:
cmd, args = read_cmd(helper)
if not cmd:
break
if cmd == 'capabilities':
assert not args
helper.write(
'option\n'
'import\n'
'bidi-import\n'
'push\n'
'refspec refs/heads/branches/*:'
'refs/cinnabar/refs/heads/branches/*\n'
'refspec refs/heads/bookmarks/*:'
'refs/cinnabar/refs/heads/bookmarks/*\n'
'refspec HEAD:refs/cinnabar/HEAD\n'
'\n'
)
helper.flush()
elif cmd == 'list':
assert not args or args == ['for-push']
if repo.capable('batch'):
batch = repo.batch()
branchmap = batch.branchmap()
heads = batch.heads()
bookmarks = batch.listkeys('bookmarks')
batch.submit()
branchmap = branchmap.value
heads = heads.value
bookmarks = bookmarks.value
else:
while True:
branchmap = repo.branchmap()
heads = repo.heads()
if heads == ['\0' * 20]:
heads = []
# Some branch heads can be non-heads topologically, but if
# some heads don't appear in the branchmap, then something
# was pushed to the repo between branchmap() and heads()
if set(heads).issubset(set(chain(*branchmap.values()))):
break
bookmarks = repo.listkeys('bookmarks')
branchmap = BranchMap(store, branchmap, heads)
unknowns = False
for branch in sorted(branchmap.names()):
branch_tip = branchmap.tip(branch)
for head in sorted(branchmap.heads(branch)):
sha1 = branchmap.git_sha1(head)
if sha1 == '?':
unknowns = True
if head == branch_tip:
continue
helper.write('%s refs/heads/branches/%s/%s\n' % (
sha1,
branch,
head,
))
if branch_tip:
helper.write('%s refs/heads/branches/%s/tip\n' % (
branchmap.git_sha1(branch_tip),
branch,
))
for name, sha1 in sorted(bookmarks.iteritems()):
ref = store.changeset_ref(sha1)
helper.write(
'%s refs/heads/bookmarks/%s\n'
% (ref if ref else '?', name)
)
if not unknowns:
for tag, ref in sorted(store.tags(branchmap.heads())):
helper.write('%s refs/tags/%s\n' % (ref, tag))
if '@' in bookmarks:
HEAD = 'bookmarks/@'
helper.write(
'@refs/heads/%s HEAD\n'
'\n'
% HEAD
)
helper.flush()
elif cmd == 'option':
assert len(args) == 2
name, value = args
if name == 'progress':
if value == 'true':
cinnabar.util.progress = True
helper.write('ok\n')
elif value == 'false':
cinnabar.util.progress = False
helper.write('ok\n')
else:
helper.write('unsupported\n')
else:
helper.write('unsupported\n')
helper.flush()
elif cmd == 'import':
try:
reflog = os.path.join(git_dir, 'logs', 'refs', 'cinnabar')
mkpath(reflog)
open(os.path.join(reflog, 'hg2git'), 'a').close()
open(os.path.join(reflog, 'manifest'), 'a').close()
assert len(args) == 1
refs = args
while cmd:
assert cmd == 'import'
cmd, args = read_cmd(helper)
assert args is None or len(args) == 1
if args:
refs.extend(args)
except:
# If anything wrong happens before we got all the import
# commands, we risk git picking the existing refs/cinnabar
# refs. Remove them.
for line in Git.for_each_ref('refs/cinnabar/refs/heads',
'refs/cinnabar/HEAD',
format='%(refname)'):
Git.delete_ref(ref)
raise
try:
def resolve_head(head):
if head.startswith('refs/heads/branches/'):
head = head[20:]
if head[-4:] == '/tip':
return branchmap.tip(head[:-4])
return head[-40:]
if head.startswith('refs/heads/bookmarks/'):
head = head[21:]
return bookmarks[head]
if head == 'HEAD':
return bookmarks.get('@') or branchmap.tip('default')
return None
wanted_refs = {k: v for k, v in (
(h, resolve_head(h)) for h in refs) if v}
heads = wanted_refs.values()
if not heads:
heads = branchmap.heads()
# Older versions would create a symbolic ref for
# refs/remote-hg/HEAD. Newer versions don't, and
# Git.update_ref doesn't remove the symbolic ref, so it needs
# to be removed first.
# Since git symbolic-ref only throws an error when the ref is
# not symbolic, just try to remove the symbolic ref every time
# and ignore errors.
tuple(Git.iter('symbolic-ref', '-d', 'refs/remote-hg/HEAD',
stderr=open(os.devnull, 'wb')))
refs_orig = {}
for line in Git.for_each_ref(
'refs/cinnabar/refs/heads', 'refs/cinnabar/HEAD',
format='%(objectname) %(refname)'):
sha1, ref = line.split(' ', 1)
refs_orig[ref] = sha1
except:
# If anything wrong happens before we actually pull, we risk
# git pucking the existing refs/cinnabar refs. Remove them.
# Unlike in the case above, we now have the list of refs git
# is expected, so we can just remove those.
for ref in refs:
Git.delete_ref('refs/cinnabar/' + ref)
raise
try:
store.init_fast_import(FastImport(sys.stdin, sys.stdout))
getbundle(repo, store, heads, branchmap)
except:
wanted_refs = {}
raise
finally:
for ref, value in wanted_refs.iteritems():
ref = 'refs/cinnabar/' + ref
if ref not in refs_orig or refs_orig[ref] != value:
Git.update_ref(ref, store.changeset_ref(value))
for ref in refs_orig:
if ref[14:] not in wanted_refs:
Git.delete_ref(ref)
store.close()
if not remote.startswith('hg::'):
prune = 'remote.%s.prune' % remote
if (Git.config(prune) != 'true' and
Git.config('fetch.prune') != 'true'):
sys.stderr.write(
'It is recommended that you set "%(conf)s" or '
'"fetch.prune" to "true".\n'
' git config %(conf)s true\n'
'or\n'
' git config fetch.prune true\n'
% {'conf': prune}
)
if store.tag_changes:
sys.stderr.write(
'\nRun the following command to update remote tags:\n')
if not remote.startswith('hg::'):
sys.stderr.write(' git remote update %s\n' % remote)
else:
sys.stderr.write(' git fetch --tags %s\n' % remote)
elif cmd == 'push':
if not remote.startswith('hg::'):
data_pref = 'remote.%s.cinnabar-data' % remote
data = Git.config(data_pref) or 'phase'
else:
data = 'phase'
if data not in ('never', 'phase', 'always'):
sys.stderr.write('Invalid value for %s: %s\n'
% (data_pref, data))
return 1
refspecs = []
refspecs.extend(args)
while True:
cmd, args = read_cmd(helper)
if not cmd:
break
assert cmd == 'push'
refspecs.extend(args)
pushes = {s.lstrip('+'): (d, s.startswith('+'))
for s, d in (r.split(':', 1) for r in refspecs)}
if isinstance(repo, bundlerepo):
for source, (dest, force) in pushes.iteritems():
helper.write('error %s Cannot push to a bundle file\n'
% dest)
helper.write('\n')
helper.flush()
else:
repo_heads = branchmap.heads()
PushStore.adopt(store)
pushed = push(repo, store, pushes, repo_heads,
branchmap.names())
status = {}
for source, (dest, _) in pushes.iteritems():
if dest.startswith('refs/tags/'):
if source:
status[dest] = 'Pushing tags is unsupported'
else:
status[dest] = \
'Deleting remote tags is unsupported'
continue
if not dest.startswith('refs/heads/bookmarks/'):
if source:
status[dest] = bool(len(pushed))
else:
status[dest] = \
'Deleting remote branches is unsupported'
continue
name = dest[21:]
if source:
source = store.hg_changeset(Git.resolve_ref(source)) \
or ''
status[dest] = repo.pushkey(
'bookmarks', name, bookmarks.get(name, ''), source)
for source, (dest, force) in pushes.iteritems():
if status[dest] is True:
helper.write('ok %s\n' % dest)
elif status[dest]:
helper.write('error %s %s\n' % (dest, status[dest]))
else:
helper.write('error %s nothing changed on remote\n'
% dest)
helper.write('\n')
helper.flush()
if not pushed:
data = False
elif data == 'always':
data = True
elif data == 'phase':
phases = repo.listkeys('phases')
drafts = {}
if not phases.get('publishing', False):
drafts = set(p for p, is_draft in phases.iteritems()
if int(is_draft))
if not drafts:
data = True
else:
def draft_commits():
for d in drafts:
c = store.changeset_ref(d)
if c:
yield '^%s^@' % c
for h in pushed.heads():
yield h
args = ['rev-list', '--ancestry-path', '--topo-order',
'--stdin']
pushed_drafts = tuple(
Git.iter(*args, stdin=draft_commits()))
# Theoretically, we could have commits with no
# metadata that the remote declares are public, while
# the rest of our push is in a draft state. That is
# however so unlikely that it's not worth the effort
# to support partial metadata storage.
data = not bool(pushed_drafts)
elif data == 'never':
data = False
store.close(rollback=not data)
store.close()
def main(args):
logger = logging.getLogger('-')
logger.info(args)
assert len(args) == 2
remote, url = args
git_dir = os.environ.get('GIT_DIR')
if Git.config('core.ignorecase', 'bool') == 'true':
sys.stderr.write(
'Your git configuration has core.ignorecase set to "true".\n'
'Usually, this means git detected the file system is case '
'insensitive.\n'
'Git-cinnabar does not support this setup.\n'
'Either use a case sensitive file system or set '
'core.ignorecase to "false".\n')
git_work_tree = os.path.dirname(git_dir)
if os.path.abspath(os.getcwd() + os.sep).startswith(
os.path.abspath(git_work_tree) + os.sep) or \
remote == 'hg::' + url or tuple(
Git.for_each_ref('refs/remotes/%s' % remote)):
sys.stderr.write('Use the following command to reclone:\n'
' git cinnabar reclone\n')
else:
sys.stderr.write(
'Use the following command to clone:\n'
' git -c core.ignorecase=false clone%(args)s hg::%(url)s '
'%(dir)s\n' % {
'dir': git_work_tree,
'url': url,
'args': ' -o ' + remote if remote != 'origin' else ''
})
return 1
repo = get_repo(url)
store = GitHgStore()
logger.info(LazyString(lambda: '%s' % store.heads()))
helper = IOLogger(logging.getLogger('remote-helper'), sys.stdin,
sys.stdout)
branchmap = None
bookmarks = {}
HEAD = 'branches/default/tip'
while True:
cmd, args = read_cmd(helper)
if not cmd:
break
if cmd == 'capabilities':
assert not args
helper.write('option\n'
'import\n'
'bidi-import\n'
'push\n'
'refspec refs/heads/branches/*:'
'refs/cinnabar/refs/heads/branches/*\n'
'refspec refs/heads/bookmarks/*:'
'refs/cinnabar/refs/heads/bookmarks/*\n'
'refspec HEAD:refs/cinnabar/HEAD\n'
'\n')
helper.flush()
elif cmd == 'list':
assert not args or args == ['for-push']
if repo.capable('batch'):
batch = repo.batch()
branchmap = batch.branchmap()
heads = batch.heads()
bookmarks = batch.listkeys('bookmarks')
batch.submit()
branchmap = branchmap.value
heads = heads.value
bookmarks = bookmarks.value
else:
while True:
branchmap = repo.branchmap()
heads = repo.heads()
if heads == ['\0' * 20]:
heads = []
# Some branch heads can be non-heads topologically, but if
# some heads don't appear in the branchmap, then something
# was pushed to the repo between branchmap() and heads()
if set(heads).issubset(set(chain(*branchmap.values()))):
break
bookmarks = repo.listkeys('bookmarks')
branchmap = BranchMap(store, branchmap, heads)
unknowns = False
for branch in sorted(branchmap.names()):
branch_tip = branchmap.tip(branch)
for head in sorted(branchmap.heads(branch)):
sha1 = branchmap.git_sha1(head)
if sha1 == '?':
unknowns = True
if head == branch_tip:
continue
helper.write('%s refs/heads/branches/%s/%s\n' % (
sha1,
branch,
head,
))
if branch_tip:
helper.write('%s refs/heads/branches/%s/tip\n' % (
branchmap.git_sha1(branch_tip),
branch,
))
for name, sha1 in sorted(bookmarks.iteritems()):
ref = store.changeset_ref(sha1)
helper.write('%s refs/heads/bookmarks/%s\n' %
(ref if ref else '?', name))
if not unknowns:
for tag, ref in sorted(store.tags(branchmap.heads())):
helper.write('%s refs/tags/%s\n' % (ref, tag))
if '@' in bookmarks:
HEAD = 'bookmarks/@'
helper.write('@refs/heads/%s HEAD\n' '\n' % HEAD)
helper.flush()
elif cmd == 'option':
assert len(args) == 2
name, value = args
if name == 'progress':
if value == 'true':
cinnabar.util.progress = True
helper.write('ok\n')
elif value == 'false':
cinnabar.util.progress = False
helper.write('ok\n')
else:
helper.write('unsupported\n')
else:
helper.write('unsupported\n')
helper.flush()
elif cmd == 'import':
try:
reflog = os.path.join(git_dir, 'logs', 'refs', 'cinnabar')
mkpath(reflog)
open(os.path.join(reflog, 'hg2git'), 'a').close()
open(os.path.join(reflog, 'manifest'), 'a').close()
assert len(args) == 1
refs = args
while cmd:
assert cmd == 'import'
cmd, args = read_cmd(helper)
assert args is None or len(args) == 1
if args:
refs.extend(args)
except:
# If anything wrong happens before we got all the import
# commands, we risk git picking the existing refs/cinnabar
# refs. Remove them.
for line in Git.for_each_ref('refs/cinnabar/refs/heads',
'refs/cinnabar/HEAD',
format='%(refname)'):
Git.delete_ref(ref)
raise
try:
def resolve_head(head):
if head.startswith('refs/heads/branches/'):
head = head[20:]
if head[-4:] == '/tip':
return branchmap.tip(head[:-4])
return head[-40:]
if head.startswith('refs/heads/bookmarks/'):
head = head[21:]
return bookmarks[head]
if head == 'HEAD':
return bookmarks.get('@') or branchmap.tip('default')
return None
wanted_refs = {
k: v
for k, v in ((h, resolve_head(h)) for h in refs) if v
}
heads = wanted_refs.values()
if not heads:
heads = branchmap.heads()
# Older versions would create a symbolic ref for
# refs/remote-hg/HEAD. Newer versions don't, and
# Git.update_ref doesn't remove the symbolic ref, so it needs
# to be removed first.
# Since git symbolic-ref only throws an error when the ref is
# not symbolic, just try to remove the symbolic ref every time
# and ignore errors.
tuple(
Git.iter('symbolic-ref',
'-d',
'refs/remote-hg/HEAD',
stderr=open(os.devnull, 'wb')))
refs_orig = {}
for line in Git.for_each_ref(
'refs/cinnabar/refs/heads',
'refs/cinnabar/HEAD',
format='%(objectname) %(refname)'):
sha1, ref = line.split(' ', 1)
refs_orig[ref] = sha1
except:
# If anything wrong happens before we actually pull, we risk
# git pucking the existing refs/cinnabar refs. Remove them.
# Unlike in the case above, we now have the list of refs git
# is expected, so we can just remove those.
for ref in refs:
Git.delete_ref('refs/cinnabar/' + ref)
raise
try:
store.init_fast_import(FastImport(sys.stdin, sys.stdout))
getbundle(repo, store, heads, branchmap)
except:
wanted_refs = {}
raise
finally:
for ref, value in wanted_refs.iteritems():
ref = 'refs/cinnabar/' + ref
if ref not in refs_orig or refs_orig[ref] != value:
Git.update_ref(ref, store.changeset_ref(value))
for ref in refs_orig:
if ref[14:] not in wanted_refs:
Git.delete_ref(ref)
store.close()
if not remote.startswith('hg::'):
prune = 'remote.%s.prune' % remote
if (Git.config(prune) != 'true'
and Git.config('fetch.prune') != 'true'):
sys.stderr.write(
'It is recommended that you set "%(conf)s" or '
'"fetch.prune" to "true".\n'
' git config %(conf)s true\n'
'or\n'
' git config fetch.prune true\n' % {'conf': prune})
if store.tag_changes:
sys.stderr.write(
'\nRun the following command to update remote tags:\n')
if not remote.startswith('hg::'):
sys.stderr.write(' git remote update %s\n' % remote)
else:
sys.stderr.write(' git fetch --tags %s\n' % remote)
elif cmd == 'push':
if not remote.startswith('hg::'):
data_pref = 'remote.%s.cinnabar-data' % remote
data = Git.config(data_pref) or 'phase'
else:
data = 'phase'
if data not in ('never', 'phase', 'always'):
sys.stderr.write('Invalid value for %s: %s\n' %
(data_pref, data))
return 1
refspecs = []
refspecs.extend(args)
while True:
cmd, args = read_cmd(helper)
if not cmd:
break
assert cmd == 'push'
refspecs.extend(args)
pushes = {
s.lstrip('+'): (d, s.startswith('+'))
for s, d in (r.split(':', 1) for r in refspecs)
}
if isinstance(repo, bundlerepo):
for source, (dest, force) in pushes.iteritems():
helper.write('error %s Cannot push to a bundle file\n' %
dest)
helper.write('\n')
helper.flush()
else:
repo_heads = branchmap.heads()
PushStore.adopt(store)
pushed = push(repo, store, pushes, repo_heads,
branchmap.names())
status = {}
for source, (dest, _) in pushes.iteritems():
if dest.startswith('refs/tags/'):
if source:
status[dest] = 'Pushing tags is unsupported'
else:
status[dest] = \
'Deleting remote tags is unsupported'
continue
if not dest.startswith('refs/heads/bookmarks/'):
if source:
status[dest] = bool(len(pushed))
else:
status[dest] = \
'Deleting remote branches is unsupported'
continue
name = dest[21:]
if source:
source = store.hg_changeset(Git.resolve_ref(source)) \
or ''
status[dest] = repo.pushkey('bookmarks', name,
bookmarks.get(name, ''),
source)
for source, (dest, force) in pushes.iteritems():
if status[dest] is True:
helper.write('ok %s\n' % dest)
elif status[dest]:
helper.write('error %s %s\n' % (dest, status[dest]))
else:
helper.write('error %s nothing changed on remote\n' %
dest)
helper.write('\n')
helper.flush()
if not pushed:
data = False
elif data == 'always':
data = True
elif data == 'phase':
phases = repo.listkeys('phases')
drafts = {}
if not phases.get('publishing', False):
drafts = set(p for p, is_draft in phases.iteritems()
if int(is_draft))
if not drafts:
data = True
else:
def draft_commits():
for d in drafts:
c = store.changeset_ref(d)
if c:
yield '^%s^@' % c
for h in pushed.heads():
yield h
args = [
'rev-list', '--ancestry-path', '--topo-order',
'--stdin'
]
pushed_drafts = tuple(
Git.iter(*args, stdin=draft_commits()))
# Theoretically, we could have commits with no
# metadata that the remote declares are public, while
# the rest of our push is in a draft state. That is
# however so unlikely that it's not worth the effort
# to support partial metadata storage.
data = not bool(pushed_drafts)
elif data == 'never':
data = False
store.close(rollback=not data)
store.close()
def fsck_quick():
status = FsckStatus()
store = GitHgStore()
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
if not metadata_commit:
status.info(
'There does not seem to be any git-cinnabar metadata.\n'
'Is this a git-cinnabar clone?'
)
return 1
commit = GitCommit(metadata_commit)
if commit.body != 'files-meta unified-manifests-v2':
status.info(
'The git-cinnabar metadata is incompatible with this version.\n'
'Please use the git-cinnabar version it was used with last.\n'
)
return 1
if len(commit.parents) > 6 or len(commit.parents) < 5:
status.report('The git-cinnabar metadata seems to be corrupted in '
'unexpected ways.\n')
return 1
changesets, manifests, hg2git, git2hg, files_meta = commit.parents[:5]
commit = GitCommit(changesets)
heads = OrderedDict(
(node, branch)
for node, _, branch in (d.partition(' ')
for d in commit.body.splitlines()))
if len(heads) != len(commit.parents):
status.report('The git-cinnabar metadata seems to be corrupted in '
'unexpected ways.\n')
return 1
manifest_nodes = []
parents = None
fix_changeset_heads = False
# TODO: Check that the recorded heads are actually dag heads.
for c, changeset_node in progress_iter(
'Checking {} changeset heads', izip(commit.parents, heads)):
gitsha1 = GitHgHelper.hg2git(changeset_node)
if gitsha1 == NULL_NODE_ID:
status.report('Missing hg2git metadata for changeset %s'
% changeset_node)
continue
if gitsha1 != c:
if parents is None:
parents = set(commit.parents)
if gitsha1 not in parents:
status.report(
'Inconsistent metadata:\n'
' Head metadata says changeset %s maps to %s\n'
' but hg2git metadata says it maps to %s'
% (changeset_node, c, gitsha1))
continue
fix_changeset_heads = True
changeset = store._changeset(c, include_parents=True)
if not changeset:
status.report('Missing git2hg metadata for git commit %s' % c)
continue
if changeset.node != changeset_node:
if changeset.node not in heads:
status.report(
'Inconsistent metadata:\n'
' Head metadata says %s maps to changeset %s\n'
' but git2hg metadata says it maps to changeset %s'
% (c, changeset_node, changeset.node))
continue
fix_changeset_heads = True
if changeset.node != changeset.sha1:
status.report('Sha1 mismatch for changeset %s' % changeset.node)
continue
changeset_branch = changeset.branch or 'default'
if heads[changeset.node] != changeset_branch:
status.report(
'Inconsistent metadata:\n'
' Head metadata says changeset %s is in branch %s\n'
' but git2hg metadata says it is in branch %s'
% (changeset.node, heads[changeset.node], changeset_branch))
continue
manifest_nodes.append(changeset.manifest)
if status('broken'):
return 1
# Rebuilding manifests benefits from limiting the difference with
# the last rebuilt manifest. Similarly, building the list of unique
# files in all manifests benefits from that too.
# Unfortunately, the manifest heads are not ordered in a topological
# relevant matter, and the differences between two consecutive manifests
# can be much larger than they could be. The consequence is spending a
# large amount of time rebuilding the manifests and gathering the files
# list. It's actually faster to attempt to reorder them according to
# some heuristics first, such that the differences are smaller.
# Here, we use the depth from the root node(s) to reorder the manifests.
# This doesn't give the most optimal ordering, but it's already much
# faster. On a clone of multiple mozilla-* repositories with > 1400 heads,
# it's close to an order of magnitude difference on the "Checking
# manifests" loop.
depths = {}
roots = []
manifest_queue = []
for m, _, parents in progress_iter(
'Loading {} manifests', GitHgHelper.rev_list(
'--topo-order', '--reverse', '--full-history', '%s^@'
% manifests)):
manifest_queue.append((m, parents))
if parents:
depth = {}
for p in parents:
for root, num in depths[p].iteritems():
if root in depth:
depth[root] = max(depth[root], num + 1)
else:
depth[root] = num + 1
depths[m] = depth
del depth
else:
depths[m] = {m: 0}
roots.append(m)
if status('broken'):
return 1
# TODO: check that all manifest_nodes gathered above are available in the
# manifests dag, and that the dag heads are the recorded heads.
manifests_commit = GitCommit(manifests)
depths = [
[depths[p].get(r, 0) for r in roots]
for p in manifests_commit.parents
]
manifests_commit_parents = [
p for _, p in sorted(zip(depths, manifests_commit.parents))
]
previous = None
all_interesting = set()
for m in progress_iter('Checking {} manifest heads',
manifests_commit_parents):
c = GitCommit(m)
if not SHA1_RE.match(c.body):
status.report('Invalid manifest metadata in git commit %s' % m)
continue
gitsha1 = GitHgHelper.hg2git(c.body)
if gitsha1 == NULL_NODE_ID:
status.report('Missing hg2git metadata for manifest %s' % c.body)
continue
if not GitHgHelper.check_manifest(c.body):
status.report('Sha1 mismatch for manifest %s' % c.body)
files = {}
if previous:
for _, _, before, after, d, path in GitHgHelper.diff_tree(
previous, m):
if d in 'AM' and before != after and \
(path, after) not in all_interesting:
files[path] = after
else:
for _, t, sha1, path in GitHgHelper.ls_tree(m, recursive=True):
if (path, sha1) not in all_interesting:
files[path] = sha1
all_interesting.update(files.iteritems())
previous = m
if status('broken'):
return 1
progress = Progress('Checking {} files')
while all_interesting and manifest_queue:
(m, parents) = manifest_queue.pop()
changes = get_changes(m, parents, all=True)
for path, hg_file, hg_fileparents in changes:
if hg_fileparents[1:] == (hg_file,):
continue
elif hg_fileparents[:1] == (hg_file,):
continue
# Reaching here means the file received a modification compared
# to its parents. If it's a file we're going to check below,
# it means we don't need to check its parents if somehow they were
# going to be checked. If it's not a file we're going to check
# below, it's because it's either a file we weren't interested in
# in the first place, or it's the parent of a file we have checked.
# Either way, we aren't interested in the parents.
for p in hg_fileparents:
all_interesting.discard((path, p))
if (path, hg_file) not in all_interesting:
continue
all_interesting.remove((path, hg_file))
if not GitHgHelper.check_file(hg_file, *hg_fileparents):
p = store.manifest_path(path)
status.report(
'Sha1 mismatch for file %s\n'
' revision %s' % (p, hg_file))
print_parents = ' '.join(p for p in hg_fileparents
if p != NULL_NODE_ID)
if print_parents:
status.report(' with parent%s %s' % (
's' if len(print_parents) > 41 else '',
print_parents))
progress.progress()
progress.finish()
if all_interesting:
status.info('Could not find the following files:')
for path, sha1 in sorted(all_interesting):
p = store.manifest_path(path)
status.info(' %s %s' % (sha1, path))
status.info(
'This might be a bug in `git cinnabar fsck`. Please open '
'an issue, with the message above, on\n'
'https://github.com/glandium/git-cinnabar/issues')
return 1
if status('broken'):
status.info(
'Your git-cinnabar repository appears to be corrupted.\n'
'Please open an issue, with the information above, on\n'
'https://github.com/glandium/git-cinnabar/issues')
Git.update_ref('refs/cinnabar/broken', metadata_commit)
if Git.resolve_ref('refs/cinnabar/checked'):
status.info(
'\nThen please try to run `git cinnabar rollback --fsck` to '
'restore last known state, and to update from the mercurial '
'repository.')
else:
status.info('\nThen please try to run `git cinnabar reclone`.')
status.info(
'\nPlease note this may affect the commit sha1s of mercurial '
'changesets, and may require to rebase your local branches.')
status.info(
'\nAlternatively, you may start afresh with a new clone. In any '
'case, please keep this corrupted repository around for further '
'debugging.')
return 1
refresh = []
if fix_changeset_heads:
status.fix('Fixing changeset heads metadata order.')
refresh.append('refs/cinnabar/changesets')
interval_expired('fsck', 0)
store.close(refresh=refresh)
GitHgHelper._helper = False
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
Git.update_ref('refs/cinnabar/checked', metadata_commit)
return 0
def fsck(args):
'''check cinnabar metadata consistency'''
if not args.commit and not args.full:
return fsck_quick()
status = FsckStatus()
store = GitHgStore()
if args.full and args.commit:
logging.error('Cannot pass both --full and a commit')
return 1
if args.commit:
commits = set()
all_git_commits = {}
for c in args.commit:
cs = store.hg_changeset(c)
if cs:
commits.add(c)
c = cs.node
commit = GitHgHelper.hg2git(c)
if commit == NULL_NODE_ID and not cs:
status.info('Unknown commit or changeset: %s' % c)
return 1
if not cs:
cs = store.hg_changeset(commit)
commits.add(commit)
all_git_commits = GitHgHelper.rev_list('--no-walk=unsorted', *commits)
else:
all_refs = dict((ref, sha1)
for sha1, ref in Git.for_each_ref('refs/cinnabar'))
if 'refs/cinnabar/metadata' in all_refs:
git_heads = '%s^^@' % all_refs['refs/cinnabar/metadata']
else:
assert False
all_git_commits = GitHgHelper.rev_list(
'--topo-order', '--full-history', '--reverse', git_heads)
dag = gitdag()
GitHgHelper.reset_heads('manifests')
full_file_check = FileFindParents.logger.isEnabledFor(logging.DEBUG)
for node, tree, parents in progress_iter('Checking {} changesets',
all_git_commits):
node = store._replace.get(node, node)
hg_node = store.hg_changeset(node)
if not hg_node:
status.report('Missing note for git commit: ' + node)
continue
GitHgHelper.seen('git2hg', node)
changeset_data = store.changeset(hg_node)
changeset = changeset_data.node
GitHgHelper.seen('hg2git', changeset)
changeset_ref = store.changeset_ref(changeset)
if not changeset_ref:
status.report('Missing changeset in hg2git branch: %s' % changeset)
continue
elif str(changeset_ref) != node:
status.report('Commit mismatch for changeset %s\n'
' hg2git: %s\n commit: %s'
% (changeset, changeset_ref, node))
hg_changeset = store.changeset(changeset, include_parents=True)
if hg_changeset.node != hg_changeset.sha1:
status.report('Sha1 mismatch for changeset %s' % changeset)
dag.add(hg_changeset.node,
(hg_changeset.parent1, hg_changeset.parent2),
changeset_data.branch or 'default')
raw_changeset = Changeset.from_git_commit(node)
patcher = ChangesetPatcher.from_diff(raw_changeset, changeset_data)
if patcher != store.read_changeset_data(node):
status.fix('Adjusted changeset metadata for %s' % changeset)
GitHgHelper.set('changeset', changeset, NULL_NODE_ID)
GitHgHelper.set('changeset', changeset, node)
GitHgHelper.put_blob(patcher, want_sha1=False)
GitHgHelper.set('changeset-metadata', changeset, NULL_NODE_ID)
GitHgHelper.set('changeset-metadata', changeset, ':1')
manifest = changeset_data.manifest
if GitHgHelper.seen('hg2git', manifest) or manifest == NULL_NODE_ID:
continue
manifest_ref = store.manifest_ref(manifest)
if not manifest_ref:
status.report('Missing manifest in hg2git branch: %s' % manifest)
parents = tuple(
store.changeset(p).manifest
for p in hg_changeset.parents
)
git_parents = tuple(store.manifest_ref(p) for p in parents
if p != NULL_NODE_ID)
# This doesn't change the value but makes the helper track the manifest
# dag.
GitHgHelper.set('manifest', manifest, manifest_ref)
if not GitHgHelper.check_manifest(manifest):
status.report('Sha1 mismatch for manifest %s' % manifest)
manifest_commit_parents = GitCommit(manifest_ref).parents
if sorted(manifest_commit_parents) != sorted(git_parents):
# TODO: better error
status.report('%s(%s) %s != %s' % (manifest, manifest_ref,
manifest_commit_parents,
git_parents))
# TODO: check that manifest content matches changeset content
changes = get_changes(manifest_ref, git_parents)
for path, hg_file, hg_fileparents in changes:
if hg_file != NULL_NODE_ID and (hg_file == HG_EMPTY_FILE or
GitHgHelper.seen('hg2git',
hg_file)):
if full_file_check:
file = store.file(hg_file, hg_fileparents, git_parents,
store.manifest_path(path))
valid = file.node == file.sha1
else:
valid = GitHgHelper.check_file(hg_file,
*hg_fileparents)
if not valid:
status.report(
'Sha1 mismatch for file %s in manifest %s'
% (hg_file, manifest_ref))
if not args.commit and not status('broken'):
store_manifest_heads = set(store._manifest_heads_orig)
manifest_heads = set(GitHgHelper.heads('manifests'))
if store_manifest_heads != manifest_heads:
def iter_manifests(a, b):
for h in a - b:
yield h
for h in b:
yield '^%s' % h
for m, t, p in GitHgHelper.rev_list(
'--topo-order', '--full-history', '--reverse',
*iter_manifests(manifest_heads, store_manifest_heads)):
status.fix('Missing manifest commit in manifest branch: %s'
% m)
for m, t, p in GitHgHelper.rev_list(
'--topo-order', '--full-history', '--reverse',
*iter_manifests(store_manifest_heads, manifest_heads)):
status.fix('Removing metadata commit %s with no corresponding '
'changeset' % (m))
for h in store_manifest_heads - manifest_heads:
if GitHgHelper.seen('hg2git', store.hg_manifest(h)):
status.fix('Removing non-head reference to %s in manifests'
' metadata.' % h)
dangling = ()
if not args.commit and not status('broken'):
dangling = GitHgHelper.dangling('hg2git')
for obj in dangling:
status.fix('Removing dangling metadata for ' + obj)
# Theoretically, we should figure out if they are files, manifests
# or changesets and set the right variable accordingly, but in
# practice, it makes no difference. Reevaluate when GitHgStore.close
# is modified, though.
GitHgHelper.set('file', obj, NULL_NODE_ID)
GitHgHelper.set('file-meta', obj, NULL_NODE_ID)
if not args.commit and not status('broken'):
dangling = GitHgHelper.dangling('git2hg')
for c in dangling:
status.fix('Removing dangling note for commit ' + c)
GitHgHelper.set('changeset-metadata', c, NULL_NODE_ID)
if status('broken'):
status.info(
'Your git-cinnabar repository appears to be corrupted. There\n'
'are known issues in older revisions that have been fixed.\n'
'Please try running the following command to reset:\n'
' git cinnabar reclone\n\n'
'Please note this command may change the commit sha1s. Your\n'
'local branches will however stay untouched.\n'
'Please report any corruption that fsck would detect after a\n'
'reclone.')
if not args.commit:
status.info('Checking head references...')
computed_heads = defaultdict(set)
for branch, head in dag.all_heads():
computed_heads[branch].add(head)
for branch in sorted(dag.tags()):
stored_heads = store.heads({branch})
for head in computed_heads[branch] - stored_heads:
status.fix('Adding missing head %s in branch %s' %
(head, branch))
store.add_head(head)
for head in stored_heads - computed_heads[branch]:
status.fix('Removing non-head reference to %s in branch %s' %
(head, branch))
del store._hgheads[head]
metadata_commit = Git.resolve_ref('refs/cinnabar/metadata')
if status('broken'):
Git.update_ref('refs/cinnabar/broken', metadata_commit)
return 1
if args.full:
Git.update_ref('refs/cinnabar/checked', metadata_commit)
interval_expired('fsck', 0)
store.close()
if status('fixed'):
return 2
return 0
def import_(self, *refs):
# If anything wrong happens at any time, we risk git picking
# the existing refs/cinnabar refs, so remove them preventively.
for sha1, ref in Git.for_each_ref('refs/cinnabar/refs/heads',
'refs/cinnabar/HEAD'):
Git.delete_ref(ref)
def resolve_head(head):
if head.startswith('refs/heads/branches/'):
head = head[20:]
if head[-4:] == '/tip':
return self._branchmap.tip(unquote(head[:-4]))
return head[-40:]
if head.startswith('refs/heads/bookmarks/'):
head = head[21:]
return self._bookmarks[unquote(head)]
if head == 'HEAD':
return (self._bookmarks.get('@') or
self._branchmap.tip('default'))
return None
wanted_refs = {k: v for k, v in (
(h, resolve_head(h)) for h in refs) if v}
heads = wanted_refs.values()
if not heads:
heads = self._branchmap.heads()
try:
# Mercurial can be an order of magnitude slower when creating
# a bundle when not giving topological heads, which some of
# the branch heads might not be.
# http://bz.selenic.com/show_bug.cgi?id=4595
# So, when we're pulling all branch heads, just ask for the
# topological heads instead.
# `heads` might contain known heads, if e.g. the remote has
# never been pulled from, but we happen to have some of its
# heads locally already.
if self._has_unknown_heads:
unknown_heads = self._branchmap.unknown_heads()
if set(heads).issuperset(unknown_heads):
heads = set(self._branchmap.heads()) & unknown_heads
self._store.init_fast_import()
getbundle(self._repo, self._store, heads,
self._branchmap.names())
except:
wanted_refs = {}
raise
finally:
for ref, value in wanted_refs.iteritems():
ref = 'refs/cinnabar/' + ref
Git.update_ref(ref, self._store.changeset_ref(value))
self._store.close()
self._helper.write('done\n')
self._helper.flush()
if self._remote.name:
if Git.config('fetch.prune', self._remote.name) != 'true':
prune = 'remote.%s.prune' % self._remote.name
sys.stderr.write(
'It is recommended that you set "%(conf)s" or '
'"fetch.prune" to "true".\n'
' git config %(conf)s true\n'
'or\n'
' git config fetch.prune true\n'
% {'conf': prune}
)
if self._store.tag_changes:
sys.stderr.write(
'\nRun the following command to update remote tags:\n')
if self._remote.name:
sys.stderr.write(
' git remote update %s\n' % self._remote.name)
else:
sys.stderr.write(
' git fetch --tags %s\n' % self._remote.git_url)
