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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.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Sun, 12 Aug 2007 12:15:10 -0300
parents f6e961c0155b
children
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# should complain
abort: please specify a revision to backout
abort: please specify just one revision
# basic operation
adding a
reverting a
changeset 2:2929462c3dff backs out changeset 1:a820f4f40a57
a
# file that was removed is recreated
adding a
adding a
changeset 2:de31bdc76c0d backs out changeset 1:76862dcce372
content
# backout of backout is as if nothing happened
removing a
changeset 3:7f6d0f120113 backs out changeset 2:de31bdc76c0d
cat: a: No such file or directory
# backout with merge
adding a
reverting a
changeset 3:3eb045e364a4 backs out changeset 1:314f55b1bf23
merging with changeset 2:b66ea5b77abb
merging a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
line 1
# backout should not back out subsequent changesets
adding a
adding b
reverting a
changeset 3:3202beb76721 backs out changeset 1:22bca4c721e5
the backout changeset is a new head - do not forget to merge
(use "backout --merge" if you want to auto-merge)
adding a
adding b
adding c
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
adding d
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
# backout of merge should fail
abort: cannot back out a merge changeset without --parent
# backout of merge with bad parent should fail
abort: cb9a9f314b8b is not a parent of b2f3bb92043e
# backout of non-merge with parent should fail
abort: cannot use --parent on non-merge changeset
# backout with valid parent should be ok
removing d
changeset 5:10e5328c8435 backs out changeset 4:b2f3bb92043e
rolling back last transaction
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
removing c
changeset 5:033590168430 backs out changeset 4:b2f3bb92043e