merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
adding r1
adding r2
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
adding b1
adding b2
adding b3
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 3 files removed, 0 files unresolved
% rebase b onto r1
applying 37a1297eb21b
37a1297eb21b transplanted to e234d668f844
applying 722f4667af76
722f4667af76 transplanted to 539f377d78df
applying a53251cdf717
a53251cdf717 transplanted to ffd6818a3975
7 b3
6 b2
5 1:d11e3596cc1a b1
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 3 files removed, 0 files unresolved
% rebase b onto r1, skipping b2
applying 37a1297eb21b
37a1297eb21b transplanted to e234d668f844
applying a53251cdf717
a53251cdf717 transplanted to 7275fda4d04f
6 b3
5 1:d11e3596cc1a b1
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
% remote transplant
requesting all changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
searching for changes
applying 37a1297eb21b
37a1297eb21b transplanted to c19cf0ccb069
applying a53251cdf717
a53251cdf717 transplanted to f7fe5bf98525
3 b3
(transplanted from a53251cdf717679d1907b289f991534be05c997a)
2 b1
(transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
1 r2
0 r1
% skip previous transplants
searching for changes
applying 722f4667af76
722f4667af76 transplanted to 47156cd86c0b
4 b2
3 b3
(transplanted from a53251cdf717679d1907b289f991534be05c997a)
2 b1
(transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
1 r2
0 r1
% skip local changes transplanted to the source
adding b4
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
searching for changes
applying 4333daefcb15
4333daefcb15 transplanted to 5f42c04e07cc
% remote transplant with pull
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
searching for changes
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
applying a53251cdf717
a53251cdf717 transplanted to 8d9279348abb
2 b3
1 b1
0 r1
% transplant --continue
adding foo
adding toremove
adding added
removing toremove
adding bar
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
applying a1e30dd1b8e7
foo
Hunk #1 FAILED at 1.
1 out of 1 hunk FAILED -- saving rejects to file foo.rej
patch command failed: exited with status 1
abort: Fix up the merge and run hg transplant --continue
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
applying a1e30dd1b8e7
foo
Hunk #1 FAILED at 1.
1 out of 1 hunk FAILED -- saving rejects to file foo.rej
patch command failed: exited with status 1
abort: Fix up the merge and run hg transplant --continue
a1e30dd1b8e7 transplanted as f1563cf27039
skipping already applied revision 1:a1e30dd1b8e7
applying 1739ac5f6139
1739ac5f6139 transplanted to d649c221319f
applying 0282d5fbbe02
0282d5fbbe02 transplanted to 77418277ccb3
added
bar
foo