Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-merge-local @ 5378:8a2915f57dfc
convert: add a mode where mercurial_sink skips empty revisions.
The getchanges function of some converter_source classes can return
some false positives. I.e. they sometimes claim that a file "foo"
was changed in some revision, even though its contents are still the
same.
convert_svn is particularly bad, but I think this can also happen with
convert_cvs and, at least in theory, with mercurial_source.
For regular conversions this is not really a problem - as long as
getfile returns the right contents, we'll get a converted revision
with the right contents. But when we use --filemap, this could lead
to superfluous revisions being converted.
Instead of fixing every converter_source, I decided to change
mercurial_sink to work around this problem.
When --filemap is used, we're interested only in revisions that touch
some specific files. If a revision doesn't change any of these files,
then we're not interested in it (at least for revisions with a single
parent; merges are special).
For mercurial_sink, we abuse this property and rollback a commit if
the manifest text hasn't changed. This avoids duplicating the logic
from localrepo.filecommit to detect unchanged files.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Thu, 04 Oct 2007 23:21:37 -0300 |
parents | 46280c004f22 |
children |
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#!/bin/sh hg init echo "# revision 0" echo "unchanged" > unchanged echo "remove me" > remove echo "copy me" > copy echo "move me" > move for i in 1 2 3 4 5 6 7 8 9; do echo "merge ok $i" >> zzz1_merge_ok done echo "merge bad" > zzz2_merge_bad hg ci -Am "revision 0" -d "1000000 0" echo "# revision 1" hg rm remove hg mv move moved hg cp copy copied echo "added" > added hg add added echo "new first line" > zzz1_merge_ok hg cat zzz1_merge_ok >> zzz1_merge_ok echo "new last line" >> zzz2_merge_bad hg ci -m "revision 1" -d "1000000 0" echo "# local changes to revision 0" hg co 0 echo "new last line" >> zzz1_merge_ok echo "another last line" >> zzz2_merge_bad hg diff --nodates | grep "^[+-][^<>]" hg st echo "# local merge with bad merge tool" HGMERGE=false hg co hg co 0 hg diff --nodates | grep "^[+-][^<>]" hg st echo "# local merge with conflicts" hg co hg co 0 hg diff --nodates | grep "^[+-][^<>]" hg st echo "# local merge without conflicts" hg revert zzz2_merge_bad hg co hg diff --nodates | grep "^[+-][^<>]" hg st