tests/test-no-symlinks

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

"$TESTDIR/hghave" no-symlink || exit 80

# The following script was used to create the bundle:
#
# hg init symlinks
# cd symlinks
# echo a > a
# mkdir d
# echo b > d/b
# ln -s a a.lnk
# ln -s d/b d/b.lnk
# hg ci -Am t
# hg bundle --base null ../test-no-symlinks.hg

# Extract a symlink on a platform not supporting them
echo % unbundle
hg init t
cd t
hg pull -q "$TESTDIR/test-no-symlinks.hg"
hg update

cat a.lnk && echo
cat d/b.lnk && echo

# Copy a symlink and move another
echo % move and copy
hg copy a.lnk d/a2.lnk
hg mv d/b.lnk b2.lnk
hg ci -Am copy
cat d/a2.lnk && echo
cat b2.lnk && echo

# Bundle and extract again
echo % bundle
hg bundle --base null ../symlinks.hg
cd ..

hg init t2
cd t2
hg pull ../symlinks.hg
hg update

cat a.lnk && echo
cat d/a2.lnk && echo
cat b2.lnk && echo