Mercurial > hg
annotate hgext/share.py @ 17208:8018f2340807
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author | Pierre-Yves.David@ens-lyon.org |
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date | Mon, 16 Jul 2012 17:56:50 +0200 |
parents | 38caf405d010 |
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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 hg, commands, util |
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10 |
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11 testedwith = 'internal' |
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12 |
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13 def share(ui, source, dest=None, noupdate=False): |
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14 """create a new shared repository |
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15 |
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16 Initialize a new repository and working directory that shares its |
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17 history with another repository. |
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18 |
12389 | 19 .. note:: |
20 using rollback or extensions that destroy/modify history (mq, | |
21 rebase, etc.) can cause considerable confusion with shared | |
22 clones. In particular, if two shared clones are both updated to | |
23 the same changeset, and one of them destroys that changeset | |
24 with rollback, the other clone will suddenly stop working: all | |
25 operations will fail with "abort: working directory has unknown | |
26 parent". The only known workaround is to use debugsetparents on | |
27 the broken clone to reset it to a changeset that still exists | |
28 (e.g. tip). | |
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29 """ |
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30 |
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31 return hg.share(ui, source, dest, not noupdate) |
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32 |
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33 def unshare(ui, repo): |
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34 """convert a shared repository to a normal one |
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35 |
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36 Copy the store data to the repo and remove the sharedpath data. |
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37 """ |
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38 |
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39 if repo.sharedpath == repo.path: |
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40 raise util.Abort(_("this is not a shared repo")) |
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41 |
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42 destlock = lock = None |
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43 lock = repo.lock() |
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44 try: |
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45 # we use locks here because if we race with commit, we |
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46 # can end up with extra data in the cloned revlogs that's |
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47 # not pointed to by changesets, thus causing verify to |
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48 # fail |
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49 |
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50 destlock = hg.copystore(ui, repo, repo.path) |
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51 |
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52 sharefile = repo.join('sharedpath') |
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53 util.rename(sharefile, sharefile + '.old') |
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54 |
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55 repo.requirements.discard('sharedpath') |
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56 repo._writerequirements() |
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57 finally: |
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58 destlock and destlock.release() |
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59 lock and lock.release() |
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60 |
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61 # update store, spath, sopener and sjoin of repo |
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62 repo.__init__(ui, repo.root) |
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63 |
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64 cmdtable = { |
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65 "share": |
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66 (share, |
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67 [('U', 'noupdate', None, _('do not create a working copy'))], |
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68 _('[-U] SOURCE [DEST]')), |
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69 "unshare": |
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70 (unshare, |
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71 [], |
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72 ''), |
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73 } |
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74 |
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75 commands.norepo += " share" |