tests/test-rebase-mq

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

echo "[extensions]" >> $HGRCPATH
echo "graphlog=" >> $HGRCPATH
echo "rebase=" >> $HGRCPATH
echo "mq=" >> $HGRCPATH

filterpatch()
{
    sed -e "s/^\(# Date\).*/\1/" \
        -e "s/^\(# Node ID\).*/\1/" \
        -e "s/^\(# Parent\).*/\1/" \
        -e "s/^\(diff -r \)\([a-f0-9]* \)\(-r \)\([a-f0-9]* \)/\1x \3y /" \
        -e "s/\(--- [a-zA-Z0-9_/.-]*\).*/\1/" \
        -e "s/\(+++ [a-zA-Z0-9_/.-]*\).*/\1/"
}

hg init a
cd a
hg qinit -c # This must work even with a managed mq queue

echo 'c1' > f
hg add f
hg commit -d '0 0' -u test -m "C1"

echo 'r1' > f
hg commit -d '2 0' -u test -m "R1"

hg up 0
hg qnew f.patch
echo 'mq1' > f
hg qref -m 'P0'

hg qnew f2.patch
echo 'mq2' > f
hg qref -m 'P1'
hg glog  --template '{rev} {desc} tags: {tags}\n'

echo
echo '% Rebase - try to rebase on an applied mq patch'
hg rebase -s 1 -d 3

echo
echo '% Rebase - generate a conflict'
hg rebase -s 2 -d 1

echo
echo '% Fix the 1st conflict'
echo 'mq1r1' > f
hg resolve -m f
hg rebase -c 2>&1 | sed -e 's/\(saving bundle to \).*/\1/'

echo
echo '% Fix the 2nd conflict'
echo 'mq1r1mq2' > f
hg resolve -m f
hg rebase -c 2>&1 | sed -e 's/\(saving bundle to \).*/\1/'

hg glog  --template '{rev} {desc} tags: {tags}\n'

echo
echo '% Update to qbase'
hg up qbase
echo '% f correctly reflects the merge result'
cat f
echo '% And the patch is correct'
cat .hg/patches/f.patch | filterpatch

echo
echo '% Update to qtip'
hg up qtip
echo '% f correctly reflects the merge result'
cat f
echo '% And the patch is correct'
cat .hg/patches/f2.patch | filterpatch