Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-backout.out @ 5192:33015dac5df5
convert: fix mercurial_sink.putcommit
Changeset 4ebc8693ce72 added some code to putcommit to avoid creating a
revision that touches no files, but this can break regular conversions
from some repositories:
- conceptually, since we're converting a repo, we should try to make
the new hg repo as similar as possible to the original repo - we
should create a new changeset, even if the original revision didn't
touch any files (maybe the commit message had some important bit);
- even if a "regular" revision that doesn't touch any file may seem
weird (and maybe even broken), it's completely legitimate for a merge
revision to not touch any file, and, if we just skip it, the
converted repo will end up with wrong history and possibly an extra
head.
As an example, say the crew and main hg repos are sync'ed. Somebody
sends an important patch to the mailing list. Matt quickly applies
and pushes it. But at the same time somebody also applies it to crew
and pushes it. Suppose the commit message ended up being a bit
different (say, there was a typo and somebody didn't fix it) or that
the date ended up being different (because of different patch-applying
scripts): the changeset hashes will be different, but the manifests
will be the same.
Since both changesets were pushed to public repos, it's hard to recall
them. If both are merged, the manifest from the resulting merge
revision will have the exact same contents as its parents - i.e. the
merge revision really doesn't touch any file at all.
To keep the file filtering stuff "working", the generic code was changed
to skip empty revisions if we're filtering the repo, fixing a bug in the
process (we want parents[0] instead of tip).
| author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
|---|---|
| date | Fri, 17 Aug 2007 20:18:05 -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