Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-convert-hg-sink.out @ 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> |
|---|---|
| date | Thu, 04 Oct 2007 23:21:37 -0300 |
| parents | 2dbd750b3ddd |
| children |
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changeset: 3:593cbf6fb2b4 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Added tag some-tag for changeset ad681a868e44 changeset: 2:ad681a868e44 tag: some-tag user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo/file changeset: 1:cbba8ecc03b7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: remove foo changeset: 0:327daa9251fa user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo and bar initializing destination new repository scanning source... sorting... converting... 3 add foo and bar 2 remove foo 1 add foo/file 0 Added tag some-tag for changeset ad681a868e44 comparing with ../orig searching for changes no changes found % dirstate should be empty: 3 files updated, 0 files merged, 0 files removed, 0 files unresolved % put something in the dirstate: a 0 -1 unset baz copy: bar -> baz % add a new revision in the original repo destination new is a Mercurial repository scanning source... sorting... converting... 0 add baz comparing with ../orig searching for changes no changes found % dirstate should be the same (no output below): % no copies 1 files updated, 0 files merged, 0 files removed, 0 files unresolved baz not renamed