Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-extdiff @ 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 | d4fa6bafc43a |
children |
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#!/bin/sh echo "[extensions]" >> $HGRCPATH echo "extdiff=" >> $HGRCPATH hg init a cd a echo a > a echo b > b hg add # should diff cloned directories hg extdiff -o -r $opt echo "[extdiff]" >> $HGRCPATH echo "cmd.falabala=echo" >> $HGRCPATH echo "opts.falabala=diffing" >> $HGRCPATH hg falabala hg help falabala hg ci -d '0 0' -mtest1 echo b >> a hg ci -d '1 0' -mtest2 # should diff cloned files directly hg falabala -r 0:1 # test diff during merge hg update 0 echo c >> c hg add c hg ci -m "new branch" -d '1 0' hg update -C 1 hg merge tip # should diff cloned file against wc file hg falabala > out || echo "diff-like tools yield a non-zero exit code" # cleanup the output since the wc is a tmp directory sed 's:\(.* \).*\(\/test-extdiff\):\1[tmp]\2:' out