Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-grep @ 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 | 0edea751bbb2 |
| children |
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#!/bin/sh mkdir t cd t hg init echo import > port hg add port hg commit -m 0 -u spam -d '0 0' echo export >> port hg commit -m 1 -u eggs -d '1 0' echo export > port echo vaportight >> port echo 'import/export' >> port hg commit -m 2 -u spam -d '2 0' echo 'import/export' >> port hg commit -m 3 -u eggs -d '3 0' head -n 3 port > port1 mv port1 port hg commit -m 4 -u spam -d '4 0' echo % pattern error hg grep '**test**' echo % simple hg grep port port echo % all hg grep --all -nu port port echo % other hg grep import port hg cp port port2 hg commit -m 4 -u spam -d '5 0' echo '% follow' hg grep -f 'import$' port2 echo deport >> port2 hg commit -m 5 -u eggs -d '6 0' hg grep -f --all -nu port port2 cd .. hg init t2 cd t2 hg grep foobar foo hg grep foobar echo blue >> color echo black >> color hg add color hg ci -m 0 -d '0 0' echo orange >> color hg ci -m 1 -d '0 0' echo black > color hg ci -m 2 -d '0 0' echo orange >> color echo blue >> color hg ci -m 3 -d '0 0' hg grep orange hg grep --all orange # Got a traceback when using grep on a single # revision with renamed files. cd .. echo % issue 685 hg init issue685 cd issue685 echo octarine > color hg ci -Amcolor hg rename color colour hg ci -Am rename hg grep octarine # Used to crash here hg grep -r 1 octarine