tests/test-merge-commit

bdiff: normalize the diff (issue1295)

When the common part of a diff can be moved forward, move it forward.
Otherwise we don't get deterministic results (it would depends on the way we
split for the recursion).
That way we get identical hunks when doing the same change, it helps to solve
issue1295 (inconsistent diffs on different side during a merge).

#!/bin/sh
# check that renames are correctly saved by a commit after a merge

# test with the merge on 3 having the rename on the local parent
hg init a
cd a

echo line1 > foo
hg add foo
hg ci -m '0: add foo' -d '0 0'

echo line2 >> foo
hg ci -m '1: change foo' -d '0 0'

hg up -C 0
hg mv foo bar
rm bar
echo line0 > bar
echo line1 >> bar
hg ci -m '2: mv foo bar; change bar' -d '0 0'

hg merge 1
echo '% contents of bar should be line0 line1 line2'
cat bar
hg ci -m '3: merge with local rename' -d '0 0'
hg debugindex .hg/store/data/bar.i
hg debugrename bar
hg debugindex .hg/store/data/foo.i

# revert the content change from rev 2
hg up -C 2
rm bar
echo line1 > bar
hg ci -m '4: revert content change from rev 2' -d '0 0'

hg log --template '#rev#:#node|short# #parents#\n'
echo '% this should use bar@rev2 as the ancestor'
hg --debug merge 3
echo '% contents of bar should be line1 line2'
cat bar
hg ci -m '5: merge' -d '0 0'
hg debugindex .hg/store/data/bar.i


# same thing, but with the merge on 3 having the rename on the remote parent
echo
echo
cd ..
hg clone -U -r 1 -r 2 a b
cd b

hg up -C 1
hg merge 2
echo '% contents of bar should be line0 line1 line2'
cat bar
hg ci -m '3: merge with remote rename' -d '0 0'
hg debugindex .hg/store/data/bar.i
hg debugrename bar
hg debugindex .hg/store/data/foo.i

# revert the content change from rev 2
hg up -C 2
rm bar
echo line1 > bar
hg ci -m '4: revert content change from rev 2' -d '0 0'

hg log --template '#rev#:#node|short# #parents#\n'
echo '% this should use bar@rev2 as the ancestor'
hg --debug merge 3
echo '% contents of bar should be line1 line2'
cat bar
hg ci -m '5: merge' -d '0 0'
hg debugindex .hg/store/data/bar.i