Re: [PATCH/RFC 2/2] git-svn: Don't allow missing commit parent to stop git-svn

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On Wed, May 19, 2010 at 2:17 PM, Michael Olson <mwolson@xxxxxxx> wrote:
> On Tue, May 4, 2010 at 4:16 PM, Eric Wong <normalperson@xxxxxxxx> wrote:
>> I'm using SVN 1.5.1 and getting the following error from
>> t9151-svn-mergeinfo.sh (GIT_TEST_OPTS='-i -v'):
>>
>> (I haven't had many chances to look into this)
>>
>> *** t9151-svn-mergeinfo.sh ***
>> Initialized empty Git repository in /home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/.git/
>> * expecting success:
>>        svnadmin load -q '/home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo'        < '/home/ew/git-core/t/t9151/svn-mergeinfo.dump' &&
>>        git svn init --minimize-url -R svnmerge           --rewrite-root=http://svn.example.org           -T trunk -b branches 'file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo' &&
>>        git svn fetch --all
>>
>> r1 = 7ed7a8721885457b4b334110ca70ed04c4f8166a (refs/remotes/trunk)
>>        A       Makefile
>> r2 = 2d5fcce57cec73616f628fbaed5a49ef3d0e42de (refs/remotes/trunk)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left, 1
>> Found branch parent: (refs/remotes/left) 7ed7a8721885457b4b334110ca70ed04c4f8166a
>> Following parent with do_switch
>>        A       Makefile
>> Successfully followed parent
>> r3 = f9ab6c8a604f40729e9b681bb3a1e867f9fa3ae8 (refs/remotes/left)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/right, 1
>> Found branch parent: (refs/remotes/right) 7ed7a8721885457b4b334110ca70ed04c4f8166a
>> Following parent with do_switch
>>        A       Makefile
>> Successfully followed parent
>> r4 = ddaeba46f3443446ad10c8e9f9708015508a3b28 (refs/remotes/right)
>>        M       Makefile
>> r5 = aec3f7b969e8f39a07d95041e1a0fa1084a62636 (refs/remotes/left)
>>        M       Makefile
>> r6 = 4e8f83f1ab23aef5373017e90af34f1819af8cab (refs/remotes/right)
>>        M       Makefile
>> r7 = 6bc3353f7fcec0c37010a59b688fa9d2584a744d (refs/remotes/left)
>>        M       Makefile
>> r8 = 3126dfd1119e03e412157f726d08c90a3fd4d7d4 (refs/remotes/left)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left-sub, 3
>> Found branch parent: (refs/remotes/left-sub) f9ab6c8a604f40729e9b681bb3a1e867f9fa3ae8
>> Following parent with do_switch
>>        M       Makefile
>> Successfully followed parent
>> r9 = 577c6d95762177126ca3068518ff8b75fcf0c25e (refs/remotes/left-sub)
>>        A       README
>> r10 = 0f51792c59119f80d15583143eecc11a609f7f4b (refs/remotes/left-sub)
>>        M       Makefile
>> Found merge parent (svn:mergeinfo prop): 3126dfd1119e03e412157f726d08c90a3fd4d7d4
>> r11 = 684711c1a28ba8ad47b8dbcc1fae523e6d7513a6 (refs/remotes/trunk)
>>        A       zlonk
>> r12 = 48e21141201f46c911875b76b5656d8baac09a66 (refs/remotes/left)
>>        A       bang
>> r13 = 2d65500a924079bcf2a63be861289fc72bc3e87f (refs/remotes/right)
>>        A       bang
>>        M       Makefile
>> W:svn cherry-pick ignored (/branches/right:6-13) - missing 1 commit(s) (eg ddaeba46f3443446ad10c8e9f9708015508a3b28)
>> r14 = 963722fb11bb2d08a6acd03123060441585c7d97 (refs/remotes/trunk)
>> Found merge parent (svn:mergeinfo prop): 2d65500a924079bcf2a63be861289fc72bc3e87f
>> r15 = 7a0288891e49f8f764fafb9c51e0da446284f6e3 (refs/remotes/trunk)
>>        A       urkkk
>> r16 = acd76c6201c8a7f1ba7539daebe82128902deb28 (refs/remotes/right)
>>        A       vronk
>> r17 = 3d987e350cb0b84c1a962f28322075148a4769f9 (refs/remotes/trunk)
>>        A       bang
>>        A       urkkk
>>        M       Makefile
>> Found merge parent (svn:mergeinfo prop): acd76c6201c8a7f1ba7539daebe82128902deb28
>> r18 = 33a71c4853e3bc75096416afb6b6a3f84317e11f (refs/remotes/left-sub)
>>        A       wham_eth
>> r19 = c18b93e7676efb39156e30479f389f162e075937 (refs/remotes/left-sub)
>>        A       glurpp
>> r20 = d3a5e11772cce14223736862eaae254c6361de52 (refs/remotes/left)
>>        A       wham_eth
>> W:svn cherry-pick ignored (/branches/left-sub:19) - missing 6 commit(s) (eg 0f51792c59119f80d15583143eecc11a609f7f4b)
>> r21 = 26f066648b9fbb8d41953f51720855ea7b504643 (refs/remotes/left)
>>        A       bang
>>        A       urkkk
>>        M       Makefile
>>        A       README
>> Found merge parent (svn:mergeinfo prop): c18b93e7676efb39156e30479f389f162e075937
>> r22 = 873f392f3b5b995738db38ddb497e4133a1eabd6 (refs/remotes/left)
>>        A       urkkk
>>        A       glurpp
>>        A       wham_eth
>>        A       README
>>        A       zlonk
>> Found merge parent (svn:mergeinfo prop): 873f392f3b5b995738db38ddb497e4133a1eabd6
>> r23 = 10f41d438deef69896cd202a8dba696fccb1fc16 (refs/remotes/trunk)
>> r24 = 8d72d496d3fd4fe5f56c4a458bb6b6bce8074ac3 (refs/remotes/trunk)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/b1, 24
>> Found branch parent: (refs/remotes/b1) 8d72d496d3fd4fe5f56c4a458bb6b6bce8074ac3
>> Following parent with do_switch
>> Successfully followed parent
>> r25 = 9583bc1ca96e396c2e8a6afbe0d7677c952e76f9 (refs/remotes/b1)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/b2, 25
>> Found branch parent: (refs/remotes/b2) 8d72d496d3fd4fe5f56c4a458bb6b6bce8074ac3
>> Following parent with do_switch
>> Successfully followed parent
>> r26 = b956cd3ea8808cb0732e51412dec60ce5d4c66de (refs/remotes/b2)
>>        A       b2file
>> r27 = 689fa6c27d1d57acd4f5e2ed3b78bfd3818cfa48 (refs/remotes/b2)
>>        A       b1file
>> r28 = c65e9d2dd0f29cc8756c66041aafca5ae7b40c87 (refs/remotes/b1)
>>        A       b1file
>> Found merge parent (svn:mergeinfo prop): c65e9d2dd0f29cc8756c66041aafca5ae7b40c87
>> r29 = 8a70eced3c8b9eb56742bb2b8182d3363ef65c9c (refs/remotes/trunk)
>>        A       trunkfile
>> r30 = 94dd10334175598f49a097035fcfba8563928048 (refs/remotes/trunk)
>>        A       b1file
>>        A       trunkfile
>> Found merge parent (svn:mergeinfo prop): c65e9d2dd0f29cc8756c66041aafca5ae7b40c87
>> W:svn cherry-pick ignored (/trunk:26-30) - missing 1 commit(s) (eg c65e9d2dd0f29cc8756c66041aafca5ae7b40c87)
>> r31 = 49faca9dc648191ba6b07f6b65f3373cc5a181e6 (refs/remotes/b2)
>>        A       b2file
>> Found merge parent (svn:mergeinfo prop): 49faca9dc648191ba6b07f6b65f3373cc5a181e6
>> r32 = 9e1737778e06d26dc2fb72c05db08520d6cd20af (refs/remotes/trunk)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/f1, 32
>> Found branch parent: (refs/remotes/f1) 9e1737778e06d26dc2fb72c05db08520d6cd20af
>> Following parent with do_switch
>>        A       f1file
>> Successfully followed parent
>> r33 = 72393572fd4bb0d02ef034f768738c9b1360ad86 (refs/remotes/f1)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/f2, 33
>> Found branch parent: (refs/remotes/f2) 9e1737778e06d26dc2fb72c05db08520d6cd20af
>> Following parent with do_switch
>>        A       f2file
>> Successfully followed parent
>> r34 = 600530ec4ff61c1bb60f7e9a1319390b9696ea89 (refs/remotes/f2)
>>        A       f1file
>>        A       f2file
>> Found merge parent (svn:mergeinfo prop): 72393572fd4bb0d02ef034f768738c9b1360ad86
>> Found merge parent (svn:mergeinfo prop): 600530ec4ff61c1bb60f7e9a1319390b9696ea89
>> r35 = 794650a0042fc4b45352798bd3d766ec71936859 (refs/remotes/trunk)
>>        A       subdir/cowboy
>> r36 = 71b29806ce50e7abcebc021bddd47ea9925b62d1 (refs/remotes/left)
>>        A       subdir/cowboy
>> Found merge parent (svn:mergeinfo prop): 71b29806ce50e7abcebc021bddd47ea9925b62d1
>> r37 = 595aa4a85d3687795a49eed9fd2774609e0bc0eb (refs/remotes/trunk)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk/subdir => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/partial, 37
>> Initializing parent: refs/remotes/partial@37
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left/subdir => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk/subdir, 36
>> Initializing parent: refs/remotes/partial@36
>>        A       cowboy
>> r36 = 36ab2d3b9d077028fa3d659325ac8ca081e348bc (refs/remotes/partial@36)
>> Found branch parent: (refs/remotes/partial@37) 36ab2d3b9d077028fa3d659325ac8ca081e348bc
>> Following parent with do_switch
>> Successfully followed parent
>> r37 = 94ef88aa1ebfb64b5525f3aed8dd36d7ec63cecc (refs/remotes/partial@37)
>> Found branch parent: (refs/remotes/partial) 94ef88aa1ebfb64b5525f3aed8dd36d7ec63cecc
>> Following parent with do_switch
>> Successfully followed parent
>> r38 = 910f886650e45984540884fbce419222d5dbe772 (refs/remotes/partial)
>>        A       palindromes
>> r39 = fdb537791ee8ba532e49c3d5a34a30feeb87bd59 (refs/remotes/partial)
>>        A       subdir/palindromes
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/b1/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/b2/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/f1/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/f2/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/left-sub/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/right/subdir
>> W: Cannot find common ancestor between 595aa4a85d3687795a49eed9fd2774609e0bc0eb and fdb537791ee8ba532e49c3d5a34a30feeb87bd59. Ignoring merge info.
>> r40 = 5805f49f999decd809f915d18f383d07d1626d5b (refs/remotes/trunk)
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/tags/v1.0 => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/bugfix, 41
>> Initializing parent: refs/remotes/bugfix@41
>> Found possible branch point: file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk => file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/tags/v1.0, 40
>> Found branch parent: (refs/remotes/bugfix@41) 5805f49f999decd809f915d18f383d07d1626d5b
>> Following parent with do_switch
>> Successfully followed parent
>> r41 = 4b3d91b566f045ddd4c362a1767cb925b66081e4 (refs/remotes/bugfix@41)
>> Found branch parent: (refs/remotes/bugfix) 4b3d91b566f045ddd4c362a1767cb925b66081e4
>> Following parent with do_switch
>> Successfully followed parent
>> r42 = 472a447664d739c39bcf87d5ad3a96212508ba39 (refs/remotes/bugfix)
>>        M       subdir/palindromes
>> r43 = f6db7ed2ea491ff68fc056942fa988c29a384e47 (refs/remotes/bugfix)
>>        M       subdir/palindromes
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/branches/bugfix/subdir
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/tags/v1.0/subdir
>> W: Cannot find common ancestor between 5805f49f999decd809f915d18f383d07d1626d5b and fdb537791ee8ba532e49c3d5a34a30feeb87bd59. Ignoring merge info.
>> Couldn't find revmap for file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/tags/v1.0
>> Found merge parent (svn:mergeinfo prop): f6db7ed2ea491ff68fc056942fa988c29a384e47
>> r44 = 16ad9cdbb78d7f1daf1b223d9afc0d9459692ded (refs/remotes/trunk)
>> Checked out HEAD:
>>  file:///home/ew/git-core/t/trash directory.t9151-svn-mergeinfo/svnrepo/trunk r44
>> *   ok 1: load svn dump
>>
>> * expecting success:
>>        unmarked=$(git rev-list --parents --all --grep=Merge |
>>                grep -v " .* " | cut -f1 -d" ")
>>        [ -z "$unmarked" ]
>>
>> *   ok 2: all svn merges became git merge commits
>>
>> * expecting success:
>>        bad_cherries=$(git rev-list --parents --all --grep=Cherry |
>>                grep " .* " | cut -f1 -d" ")
>>        [ -z "$bad_cherries" ]
>>
>> *   ok 3: cherry picks did not become git merge commits
>>
>> * expecting success:
>>        bad_non_merges=$(git rev-list --parents --all --grep=non-merge |
>>                grep " .* " | cut -f1 -d" ")
>>        [ -z "$bad_non_merges" ]
>>
>> *   ok 4: svn non-merge merge commits did not become git merge commits
>>
>> * expecting success:
>>        before_commit=$(git rev-list --all --grep="trunk commit before merging trunk to b2")
>>        merge_commit=$(git rev-list --all --grep="Merge trunk to b2")
>>        not_reachable=$(git rev-list -1 $before_commit --not $merge_commit)
>>        [ -z "$not_reachable" ]
>>
>> * FAIL 5: commit made to merged branch is reachable from the merge
>>
>>                before_commit=$(git rev-list --all --grep="trunk commit before merging trunk to b2")
>>                merge_commit=$(git rev-list --all --grep="Merge trunk to b2")
>>                not_reachable=$(git rev-list -1 $before_commit --not $merge_commit)
>>                [ -z "$not_reachable" ]
>>
>> make: *** [t9151-svn-mergeinfo.sh] Error 1
>>
>> --
>> Eric Wong
>>
>
> I tried looking at it, but the situation is kind of odd.  Neither
> $before_commit nor $merge_commit appears in each others' git log
> output, so it would seem that the test ought to pass.  The rev-list
> command returns the revision ID of $before_commit, which causes the
> test to fail.

Never mind, I misread the description of the test, so it makes a
little more sense now.

-- 
Michael Olson  |  http://mwolson.org/
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