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changegroup: add v4 changegroup for revlog v2 exchange...
changegroup: add v4 changegroup for revlog v2 exchange This change only adds the required infrastructure for the new changegroup format and does not do any actual exchange. This will be done in the next patches. Differential Revision: https://phab.mercurial-scm.org/D10026

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storefactory.py
89 lines | 2.5 KiB | text/x-python | PythonLexer
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import re
from mercurial.i18n import _
from mercurial.pycompat import getattr
from mercurial import (
error,
hg,
util,
)
from . import (
lfutil,
localstore,
wirestore,
)
# During clone this function is passed the src's ui object
# but it needs the dest's ui object so it can read out of
# the config file. Use repo.ui instead.
def openstore(repo=None, remote=None, put=False, ui=None):
if ui is None:
ui = repo.ui
if not remote:
lfpullsource = getattr(repo, 'lfpullsource', None)
if lfpullsource:
path = ui.expandpath(lfpullsource)
elif put:
path = ui.expandpath(b'default-push', b'default')
else:
path = ui.expandpath(b'default')
# ui.expandpath() leaves 'default-push' and 'default' alone if
# they cannot be expanded: fallback to the empty string,
# meaning the current directory.
if repo is None:
path = ui.expandpath(b'default')
path, _branches = hg.parseurl(path)
remote = hg.peer(repo or ui, {}, path)
elif path == b'default-push' or path == b'default':
remote = repo
else:
path, _branches = hg.parseurl(path)
remote = hg.peer(repo or ui, {}, path)
# The path could be a scheme so use Mercurial's normal functionality
# to resolve the scheme to a repository and use its path
path = util.safehasattr(remote, b'url') and remote.url() or remote.path
match = _scheme_re.match(path)
if not match: # regular filesystem path
scheme = b'file'
else:
scheme = match.group(1)
try:
storeproviders = _storeprovider[scheme]
except KeyError:
raise error.Abort(_(b'unsupported URL scheme %r') % scheme)
for classobj in storeproviders:
try:
return classobj(ui, repo, remote)
except lfutil.storeprotonotcapable:
pass
raise error.Abort(
_(b'%s does not appear to be a largefile store')
% util.hidepassword(path)
)
_storeprovider = {
b'file': [localstore.localstore],
b'http': [wirestore.wirestore],
b'https': [wirestore.wirestore],
b'ssh': [wirestore.wirestore],
}
_scheme_re = re.compile(br'^([a-zA-Z0-9+-.]+)://')
def getlfile(ui, hash):
return util.chunkbuffer(openstore(ui=ui)._get(hash))