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localrepo: use dirstate savebackup instead of handling dirstate file manually...
localrepo: use dirstate savebackup instead of handling dirstate file manually This is one step towards having dirstate manage its own storage. It will be useful for the implementation of sql dirstate [1]. This introduced a small test change: now we always write the dirstate before saving backup so in some cases where dirstate file didn't exist yet savebackup can create it. [1] https://www.mercurial-scm.org/wiki/SQLDirstatePlan

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notcapable
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# Disable the $CAP wire protocol capability.
if test -z "$CAP"
then
echo "CAP environment variable not set."
fi
cat > notcapable-$CAP.py << EOF
from mercurial import extensions, peer, localrepo
def extsetup():
extensions.wrapfunction(peer.peerrepository, 'capable', wrapcapable)
extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
def wrapcapable(orig, self, name, *args, **kwargs):
if name in '$CAP'.split(' '):
return False
return orig(self, name, *args, **kwargs)
def wrappeer(orig, self):
# Since we're disabling some newer features, we need to make sure local
# repos add in the legacy features again.
return localrepo.locallegacypeer(self)
EOF
echo '[extensions]' >> $HGRCPATH
echo "notcapable-$CAP = `pwd`/notcapable-$CAP.py" >> $HGRCPATH