|
|
# filelog.py - file history class for mercurial
|
|
|
#
|
|
|
# Copyright 2005-2007 Olivia Mackall <olivia@selenic.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
|
|
|
from .i18n import _
|
|
|
from .node import nullrev
|
|
|
from . import (
|
|
|
error,
|
|
|
revlog,
|
|
|
)
|
|
|
from .interfaces import (
|
|
|
repository,
|
|
|
util as interfaceutil,
|
|
|
)
|
|
|
from .utils import storageutil
|
|
|
from .revlogutils import (
|
|
|
constants as revlog_constants,
|
|
|
rewrite,
|
|
|
)
|
|
|
|
|
|
|
|
|
@interfaceutil.implementer(repository.ifilestorage)
|
|
|
class filelog:
|
|
|
def __init__(self, opener, path, try_split=False):
|
|
|
self._revlog = revlog.revlog(
|
|
|
opener,
|
|
|
# XXX should use the unencoded path
|
|
|
target=(revlog_constants.KIND_FILELOG, path),
|
|
|
radix=b'/'.join((b'data', path)),
|
|
|
censorable=True,
|
|
|
canonical_parent_order=False, # see comment in revlog.py
|
|
|
try_split=try_split,
|
|
|
)
|
|
|
# Full name of the user visible file, relative to the repository root.
|
|
|
# Used by LFS.
|
|
|
self._revlog.filename = path
|
|
|
self.nullid = self._revlog.nullid
|
|
|
opts = opener.options
|
|
|
self._fix_issue6528 = opts.get(b'issue6528.fix-incoming', True)
|
|
|
|
|
|
def get_revlog(self):
|
|
|
"""return an actual revlog instance if any
|
|
|
|
|
|
This exist because a lot of code leverage the fact the underlying
|
|
|
storage is a revlog for optimization, so giving simple way to access
|
|
|
the revlog instance helps such code.
|
|
|
"""
|
|
|
return self._revlog
|
|
|
|
|
|
def __len__(self):
|
|
|
return len(self._revlog)
|
|
|
|
|
|
def __iter__(self):
|
|
|
return self._revlog.__iter__()
|
|
|
|
|
|
def hasnode(self, node):
|
|
|
if node in (self.nullid, nullrev):
|
|
|
return False
|
|
|
|
|
|
try:
|
|
|
self._revlog.rev(node)
|
|
|
return True
|
|
|
except (TypeError, ValueError, IndexError, error.LookupError):
|
|
|
return False
|
|
|
|
|
|
def revs(self, start=0, stop=None):
|
|
|
return self._revlog.revs(start=start, stop=stop)
|
|
|
|
|
|
def parents(self, node):
|
|
|
return self._revlog.parents(node)
|
|
|
|
|
|
def parentrevs(self, rev):
|
|
|
return self._revlog.parentrevs(rev)
|
|
|
|
|
|
def rev(self, node):
|
|
|
return self._revlog.rev(node)
|
|
|
|
|
|
def node(self, rev):
|
|
|
return self._revlog.node(rev)
|
|
|
|
|
|
def lookup(self, node):
|
|
|
return storageutil.fileidlookup(
|
|
|
self._revlog, node, self._revlog.display_id
|
|
|
)
|
|
|
|
|
|
def linkrev(self, rev):
|
|
|
return self._revlog.linkrev(rev)
|
|
|
|
|
|
def commonancestorsheads(self, node1, node2):
|
|
|
return self._revlog.commonancestorsheads(node1, node2)
|
|
|
|
|
|
# Used by dagop.blockdescendants().
|
|
|
def descendants(self, revs):
|
|
|
return self._revlog.descendants(revs)
|
|
|
|
|
|
def heads(self, start=None, stop=None):
|
|
|
return self._revlog.heads(start, stop)
|
|
|
|
|
|
# Used by hgweb, children extension.
|
|
|
def children(self, node):
|
|
|
return self._revlog.children(node)
|
|
|
|
|
|
def iscensored(self, rev):
|
|
|
return self._revlog.iscensored(rev)
|
|
|
|
|
|
def revision(self, node):
|
|
|
return self._revlog.revision(node)
|
|
|
|
|
|
def rawdata(self, node):
|
|
|
return self._revlog.rawdata(node)
|
|
|
|
|
|
def emitrevisions(
|
|
|
self,
|
|
|
nodes,
|
|
|
nodesorder=None,
|
|
|
revisiondata=False,
|
|
|
assumehaveparentrevisions=False,
|
|
|
deltamode=repository.CG_DELTAMODE_STD,
|
|
|
sidedata_helpers=None,
|
|
|
debug_info=None,
|
|
|
):
|
|
|
return self._revlog.emitrevisions(
|
|
|
nodes,
|
|
|
nodesorder=nodesorder,
|
|
|
revisiondata=revisiondata,
|
|
|
assumehaveparentrevisions=assumehaveparentrevisions,
|
|
|
deltamode=deltamode,
|
|
|
sidedata_helpers=sidedata_helpers,
|
|
|
debug_info=debug_info,
|
|
|
)
|
|
|
|
|
|
def addrevision(
|
|
|
self,
|
|
|
revisiondata,
|
|
|
transaction,
|
|
|
linkrev,
|
|
|
p1,
|
|
|
p2,
|
|
|
node=None,
|
|
|
flags=revlog.REVIDX_DEFAULT_FLAGS,
|
|
|
cachedelta=None,
|
|
|
):
|
|
|
return self._revlog.addrevision(
|
|
|
revisiondata,
|
|
|
transaction,
|
|
|
linkrev,
|
|
|
p1,
|
|
|
p2,
|
|
|
node=node,
|
|
|
flags=flags,
|
|
|
cachedelta=cachedelta,
|
|
|
)
|
|
|
|
|
|
def addgroup(
|
|
|
self,
|
|
|
deltas,
|
|
|
linkmapper,
|
|
|
transaction,
|
|
|
addrevisioncb=None,
|
|
|
duplicaterevisioncb=None,
|
|
|
maybemissingparents=False,
|
|
|
debug_info=None,
|
|
|
delta_base_reuse_policy=None,
|
|
|
):
|
|
|
if maybemissingparents:
|
|
|
raise error.Abort(
|
|
|
_(
|
|
|
b'revlog storage does not support missing '
|
|
|
b'parents write mode'
|
|
|
)
|
|
|
)
|
|
|
|
|
|
with self._revlog._writing(transaction):
|
|
|
|
|
|
if self._fix_issue6528:
|
|
|
deltas = rewrite.filter_delta_issue6528(self._revlog, deltas)
|
|
|
|
|
|
return self._revlog.addgroup(
|
|
|
deltas,
|
|
|
linkmapper,
|
|
|
transaction,
|
|
|
addrevisioncb=addrevisioncb,
|
|
|
duplicaterevisioncb=duplicaterevisioncb,
|
|
|
debug_info=debug_info,
|
|
|
delta_base_reuse_policy=delta_base_reuse_policy,
|
|
|
)
|
|
|
|
|
|
def getstrippoint(self, minlink):
|
|
|
return self._revlog.getstrippoint(minlink)
|
|
|
|
|
|
def strip(self, minlink, transaction):
|
|
|
return self._revlog.strip(minlink, transaction)
|
|
|
|
|
|
def censorrevision(self, tr, node, tombstone=b''):
|
|
|
return self._revlog.censorrevision(tr, node, tombstone=tombstone)
|
|
|
|
|
|
def files(self):
|
|
|
return self._revlog.files()
|
|
|
|
|
|
def read(self, node):
|
|
|
return storageutil.filtermetadata(self.revision(node))
|
|
|
|
|
|
def add(self, text, meta, transaction, link, p1=None, p2=None):
|
|
|
if meta or text.startswith(b'\1\n'):
|
|
|
text = storageutil.packmeta(meta, text)
|
|
|
rev = self.addrevision(text, transaction, link, p1, p2)
|
|
|
return self.node(rev)
|
|
|
|
|
|
def renamed(self, node):
|
|
|
return storageutil.filerevisioncopied(self, node)
|
|
|
|
|
|
def size(self, rev):
|
|
|
"""return the size of a given revision"""
|
|
|
|
|
|
# for revisions with renames, we have to go the slow way
|
|
|
node = self.node(rev)
|
|
|
if self.iscensored(rev):
|
|
|
return 0
|
|
|
if self.renamed(node):
|
|
|
return len(self.read(node))
|
|
|
|
|
|
# XXX if self.read(node).startswith("\1\n"), this returns (size+4)
|
|
|
# XXX See also basefilectx.cmp.
|
|
|
return self._revlog.size(rev)
|
|
|
|
|
|
def cmp(self, node, text):
|
|
|
"""compare text with a given file revision
|
|
|
|
|
|
returns True if text is different than what is stored.
|
|
|
"""
|
|
|
return not storageutil.filedataequivalent(self, node, text)
|
|
|
|
|
|
def verifyintegrity(self, state):
|
|
|
return self._revlog.verifyintegrity(state)
|
|
|
|
|
|
def storageinfo(
|
|
|
self,
|
|
|
exclusivefiles=False,
|
|
|
sharedfiles=False,
|
|
|
revisionscount=False,
|
|
|
trackedsize=False,
|
|
|
storedsize=False,
|
|
|
):
|
|
|
return self._revlog.storageinfo(
|
|
|
exclusivefiles=exclusivefiles,
|
|
|
sharedfiles=sharedfiles,
|
|
|
revisionscount=revisionscount,
|
|
|
trackedsize=trackedsize,
|
|
|
storedsize=storedsize,
|
|
|
)
|
|
|
|
|
|
# Used by repo upgrade.
|
|
|
def clone(self, tr, destrevlog, **kwargs):
|
|
|
if not isinstance(destrevlog, filelog):
|
|
|
msg = b'expected filelog to clone(), not %r'
|
|
|
msg %= destrevlog
|
|
|
raise error.ProgrammingError(msg)
|
|
|
|
|
|
return self._revlog.clone(tr, destrevlog._revlog, **kwargs)
|
|
|
|
|
|
|
|
|
class narrowfilelog(filelog):
|
|
|
"""Filelog variation to be used with narrow stores."""
|
|
|
|
|
|
def __init__(self, opener, path, narrowmatch, try_split=False):
|
|
|
super(narrowfilelog, self).__init__(opener, path, try_split=try_split)
|
|
|
self._narrowmatch = narrowmatch
|
|
|
|
|
|
def renamed(self, node):
|
|
|
res = super(narrowfilelog, self).renamed(node)
|
|
|
|
|
|
# Renames that come from outside the narrowspec are problematic
|
|
|
# because we may lack the base text for the rename. This can result
|
|
|
# in code attempting to walk the ancestry or compute a diff
|
|
|
# encountering a missing revision. We address this by silently
|
|
|
# removing rename metadata if the source file is outside the
|
|
|
# narrow spec.
|
|
|
#
|
|
|
# A better solution would be to see if the base revision is available,
|
|
|
# rather than assuming it isn't.
|
|
|
#
|
|
|
# An even better solution would be to teach all consumers of rename
|
|
|
# metadata that the base revision may not be available.
|
|
|
#
|
|
|
# TODO consider better ways of doing this.
|
|
|
if res and not self._narrowmatch(res[0]):
|
|
|
return None
|
|
|
|
|
|
return res
|
|
|
|
|
|
def size(self, rev):
|
|
|
# Because we have a custom renamed() that may lie, we need to call
|
|
|
# the base renamed() to report accurate results.
|
|
|
node = self.node(rev)
|
|
|
if super(narrowfilelog, self).renamed(node):
|
|
|
return len(self.read(node))
|
|
|
else:
|
|
|
return super(narrowfilelog, self).size(rev)
|
|
|
|
|
|
def cmp(self, node, text):
|
|
|
# We don't call `super` because narrow parents can be buggy in case of a
|
|
|
# ambiguous dirstate. Always take the slow path until there is a better
|
|
|
# fix, see issue6150.
|
|
|
|
|
|
# Censored files compare against the empty file.
|
|
|
if self.iscensored(self.rev(node)):
|
|
|
return text != b''
|
|
|
|
|
|
return self.read(node) != text
|
|
|
|
