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patch: support diff data loss detection and upgrade...
patch: support diff data loss detection and upgrade In worst case, generating diff in upgrade mode can be two times more expensive than generating it in git mode directly: we may have to regenerate the whole diff again whenever a git feature is detected. Also, the first diff attempt is completely buffered instead of being streamed. That said, even without having profiled it yet, I am convinced we can fast-path the upgrade mode if necessary were it to be used in regular diff commands, and not only in mq where avoiding data loss is worth the price.

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r8270:3477ad0b merge default
r10189:e451e599 default
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test-rebase-keep-branch
32 lines | 633 B | text/plain | TextLexer
/ tests / test-rebase-keep-branch
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "graphlog=" >> $HGRCPATH
echo "rebase=" >> $HGRCPATH
addcommit () {
echo $1 > $1
hg add $1
hg commit -d "${2} 0" -m $1
}
hg init a
cd a
addcommit "c1" 0
addcommit "c2" 1
addcommit "l1" 2
addcommit "l2" 3
hg update -C 1
hg branch 'notdefault'
addcommit "r1" 4
hg glog --template '{rev}:{desc}:{branches}\n'
echo
echo '% Rebase a branch while preserving the branch name'
hg update -C 3
hg rebase -b 4 -d 3 --keepbranches 2>&1 | sed 's/\(saving bundle to \).*/\1/'
hg glog --template '{rev}:{desc}:{branches}\n'
echo '% dirstate branch should be "notdefault"'
hg branch