patch: be more tolerant to diffstat failures (issue 865)
Sometimes, revisions cannot be represented by a regular diff, only a git diff
would capture binary files or permission changes. diffstat cannot handle git
patches and will output "0 files changed" when fed with an empty diff. We
cannot consider the latter to be an error, unless we rewrite diffstat to handle
these correctly.
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "imerge=" >> $HGRCPATH
HGMERGE=true
export HGMERGE
hg init base
cd base
echo foo > foo
echo bar > bar
hg ci -Am0 -d '0 0'
hg mv foo foo2
echo foo >> foo2
hg ci -m1 -d '1 0'
hg up -C 0
echo bar >> foo
echo bar >> bar
hg ci -m2 -d '2 0'
echo % start imerge
hg imerge
cat foo2
cat bar
echo % status -v
hg -v imerge st
echo % next
hg imerge next
echo % merge next
hg --traceback imerge
echo % unresolve
hg imerge unres foo
echo % merge foo
hg imerge merge foo
echo % save
echo foo > foo2
hg imerge save ../savedmerge
echo % load
hg up -C 0
hg imerge --traceback load ../savedmerge
cat foo2
hg ci -m'merged' -d '3 0'
hg tip -v
echo % nothing to merge -- tip
hg imerge
hg up 0
echo % nothing to merge
hg imerge
exit 0