merge: fix a copy detection bug (issue672)
When merging rev1 and rev2, we want to search for copies that happened
in rev1 but not in rev2 and vice-versa. We were starting the search at
rev1/rev2 and then going back, stopping as soon as we reached the revno
of the ancestor, but that can miss some cases (see the new
test-issue672).
Now we calculate the revisions that are ancestors of rev1 or rev2 (but
not both) and make sure the search doesn't stop too early.
Simplified test provided by mpm, based on a test case provided by
Edward Lee.
# creating 'remote'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
rev offset length base linkrev nodeid p1 p2
0 0 3 0 0 362fef284ce2 000000000000 000000000000
1 3 5 1 1 125144f7e028 362fef284ce2 000000000000
2 8 7 2 2 4c982badb186 125144f7e028 000000000000
3 15 9 3 3 19b1fc555737 4c982badb186 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 75 0 7 905359268f77 000000000000 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 75 0 8 905359268f77 000000000000 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 8 0 6 12ab3bcc5ea4 000000000000 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 48 0 0 43eadb1d2d06 000000000000 000000000000
1 48 48 1 1 8b89697eba2c 43eadb1d2d06 000000000000
2 96 48 2 2 626a32663c2f 8b89697eba2c 000000000000
3 144 48 3 3 f54c32f13478 626a32663c2f 000000000000
4 192 58 3 6 de68e904d169 626a32663c2f 000000000000
5 250 68 3 7 3b45cc2ab868 de68e904d169 000000000000
6 318 54 6 8 24d86153a002 f54c32f13478 000000000000
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions
# Starting server
# clone remote via stream
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
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 4 changesets, 4 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 5 changes to 2 files
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 4 changesets, 5 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 6 changes to 3 files
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 5 changesets, 6 total revisions
requesting all changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 5 changes to 2 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 5 changesets, 5 total revisions
pulling from ../test-7
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 2 changes to 3 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions
pulling from http://localhost:20061/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 2 total revisions
pulling from http://localhost:20061/
searching for changes
adding changesets
adding manifests
adding file changes
added 6 changesets with 5 changes to 4 files
(run 'hg update' to get a working copy)
pulling from http://localhost:20061/
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 0 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 5 changesets, 3 total revisions
pulling from http://localhost:20061/
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 4 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions