Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-parentrevspec @ 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 | 4fe04b183fd8 |
children |
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#!/bin/sh commit() { msg=$1 p1=$2 p2=$3 if [ "$p1" ]; then hg up -qC $p1 fi if [ "$p2" ]; then HGMERGE=true hg merge -q $p2 fi echo >> foo hg commit -d '0 0' -qAm "$msg" foo } hg init repo cd repo echo '[extensions]' > .hg/hgrc echo 'hgext.parentrevspec =' >> .hg/hgrc commit '0: add foo' commit '1: change foo 1' commit '2: change foo 2a' commit '3: change foo 3a' commit '4: change foo 2b' 1 commit '5: merge' 3 4 commit '6: change foo again' hg log --template '#rev#:#node|short# #parents#\n' echo lookup() { for rev in "$@"; do printf "$rev: " hg id -nr $rev done true } tipnode=`hg id -ir tip` echo 'should work with tag/branch/node/rev' for r in tip default $tipnode 6; do lookup "$r^" done echo echo 'some random lookups' lookup "6^^" "6^^^" "6^^^^" "6^^^^^" "6^^^^^^" "6^1" "6^2" "6^^2" "6^1^2" "6^^3" lookup "6~" "6~1" "6~2" "6~3" "6~4" "6~5" "6~42" "6~1^2" "6~1^2~2" echo echo 'with a tag "6^" pointing to rev 1' hg tag -l -r 1 "6^" lookup "6^" "6^1" "6~1" "6^^" echo echo 'with a tag "foo^bar" pointing to rev 2' hg tag -l -r 2 "foo^bar" lookup "foo^bar" "foo^bar^"