| # 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" |
