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
HGMERGE=true; export HGMERGE
echo % init
hg init
echo % commit
echo 'a' > a
hg ci -A -m test -u nobody -d '1 0'
echo % annotate -c
hg annotate -c a
echo % annotate -cl
hg annotate -cl a
echo % annotate -d
hg annotate -d a
echo % annotate -n
hg annotate -n a
echo % annotate -nl
hg annotate -nl a
echo % annotate -u
hg annotate -u a
echo % annotate -cdnu
hg annotate -cdnu a
echo % annotate -cdnul
hg annotate -cdnul a
cat <<EOF >>a
a
a
EOF
hg ci -ma1 -d '1 0'
hg cp a b
hg ci -mb -d '1 0'
cat <<EOF >> b
b4
b5
b6
EOF
hg ci -mb2 -d '2 0'
echo % annotate -n b
hg annotate -n b
echo % annotate -nl b
hg annotate -nl b
echo % annotate -nf b
hg annotate -nf b
echo % annotate -nlf b
hg annotate -nlf b
hg up -C 2
cat <<EOF >> b
b4
c
b5
EOF
hg ci -mb2.1 -d '2 0'
hg merge
hg ci -mmergeb -d '3 0'
echo % annotate after merge
hg annotate -nf b
echo % annotate after merge with -l
hg annotate -nlf b
hg up -C 1
hg cp a b
cat <<EOF > b
a
z
a
EOF
hg ci -mc -d '3 0'
hg merge
cat <<EOF >> b
b4
c
b5
EOF
echo d >> b
hg ci -mmerge2 -d '4 0'
echo % annotate after rename merge
hg annotate -nf b
echo % annotate after rename merge with -l
hg annotate -nlf b
echo % linkrev vs rev
hg annotate -r tip -n a
echo % linkrev vs rev with -l
hg annotate -r tip -nl a
# test issue 589
# annotate was crashing when trying to --follow something
# like A -> B -> A
echo % generate ABA rename configuration
echo foo > foo
hg add foo
hg ci -m addfoo
hg rename foo bar
hg ci -m renamefoo
hg rename bar foo
hg ci -m renamebar
echo % annotate after ABA with follow
hg annotate --follow foo