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| Current File : //lib64/python2.7/site-packages/hgext/share.py |
# Copyright 2006, 2007 Matt Mackall <mpm@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.
'''share a common history between several working directories'''
from mercurial.i18n import _
from mercurial import hg, commands, util
testedwith = 'internal'
def share(ui, source, dest=None, noupdate=False):
"""create a new shared repository
Initialize a new repository and working directory that shares its
history with another repository.
.. note::
using rollback or extensions that destroy/modify history (mq,
rebase, etc.) can cause considerable confusion with shared
clones. In particular, if two shared clones are both updated to
the same changeset, and one of them destroys that changeset
with rollback, the other clone will suddenly stop working: all
operations will fail with "abort: working directory has unknown
parent". The only known workaround is to use debugsetparents on
the broken clone to reset it to a changeset that still exists
(e.g. tip).
"""
return hg.share(ui, source, dest, not noupdate)
def unshare(ui, repo):
"""convert a shared repository to a normal one
Copy the store data to the repo and remove the sharedpath data.
"""
if repo.sharedpath == repo.path:
raise util.Abort(_("this is not a shared repo"))
destlock = lock = None
lock = repo.lock()
try:
# we use locks here because if we race with commit, we
# can end up with extra data in the cloned revlogs that's
# not pointed to by changesets, thus causing verify to
# fail
destlock = hg.copystore(ui, repo, repo.path)
sharefile = repo.join('sharedpath')
util.rename(sharefile, sharefile + '.old')
repo.requirements.discard('sharedpath')
repo._writerequirements()
finally:
destlock and destlock.release()
lock and lock.release()
# update store, spath, sopener and sjoin of repo
repo.__init__(repo.baseui, repo.root)
cmdtable = {
"share":
(share,
[('U', 'noupdate', None, _('do not create a working copy'))],
_('[-U] SOURCE [DEST]')),
"unshare":
(unshare,
[],
''),
}
commands.norepo += " share"