Mercurial > hg
annotate hgext/share.py @ 22984:e0b5f5e3afe8
histedit: move locks into state
Allow action functions to control the locks. This is necessary for
an implementation of x/exec or similar.
author | David Soria Parra <davidsp@fb.com> |
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date | Wed, 15 Oct 2014 08:38:36 -0700 |
parents | 5a4d1a6c605f |
children | 141baca16059 |
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1 # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com> |
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2 # |
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3 # This software may be used and distributed according to the terms of the |
10263 | 4 # GNU General Public License version 2 or any later version. |
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5 |
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6 '''share a common history between several working directories''' |
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7 |
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8 from mercurial.i18n import _ |
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9 from mercurial import cmdutil, hg, util |
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10 |
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11 cmdtable = {} |
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12 command = cmdutil.command(cmdtable) |
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13 testedwith = 'internal' |
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14 |
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15 @command('share', |
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16 [('U', 'noupdate', None, _('do not create a working copy'))], |
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17 _('[-U] SOURCE [DEST]'), |
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18 norepo=True) |
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19 def share(ui, source, dest=None, noupdate=False): |
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20 """create a new shared repository |
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21 |
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22 Initialize a new repository and working directory that shares its |
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23 history with another repository. |
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24 |
12389 | 25 .. note:: |
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26 |
12389 | 27 using rollback or extensions that destroy/modify history (mq, |
28 rebase, etc.) can cause considerable confusion with shared | |
29 clones. In particular, if two shared clones are both updated to | |
30 the same changeset, and one of them destroys that changeset | |
31 with rollback, the other clone will suddenly stop working: all | |
32 operations will fail with "abort: working directory has unknown | |
33 parent". The only known workaround is to use debugsetparents on | |
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34 the broken clone to reset it to a changeset that still exists. |
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35 """ |
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36 |
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37 return hg.share(ui, source, dest, not noupdate) |
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38 |
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39 @command('unshare', [], '') |
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40 def unshare(ui, repo): |
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41 """convert a shared repository to a normal one |
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42 |
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43 Copy the store data to the repo and remove the sharedpath data. |
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44 """ |
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45 |
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46 if repo.sharedpath == repo.path: |
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47 raise util.Abort(_("this is not a shared repo")) |
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48 |
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49 destlock = lock = None |
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50 lock = repo.lock() |
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51 try: |
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52 # we use locks here because if we race with commit, we |
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53 # can end up with extra data in the cloned revlogs that's |
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54 # not pointed to by changesets, thus causing verify to |
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55 # fail |
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56 |
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57 destlock = hg.copystore(ui, repo, repo.path) |
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58 |
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59 sharefile = repo.join('sharedpath') |
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60 util.rename(sharefile, sharefile + '.old') |
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61 |
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62 repo.requirements.discard('sharedpath') |
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63 repo._writerequirements() |
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64 finally: |
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65 destlock and destlock.release() |
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66 lock and lock.release() |
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67 |
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68 # update store, spath, sopener and sjoin of repo |
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69 repo.unfiltered().__init__(repo.baseui, repo.root) |