tests/test-convert-darcs

Add patch.eol to ignore EOLs when patching (issue1019)

The intent is to fix many issues involving patching when win32ext is enabled.
With win32ext, the working directory and repository files EOLs are not the same
which means that patches made on a non-win32ext host do not apply cleanly
because of EOLs discrepancies. A theorically correct approach would be
transform either the patched file or the patch content with the
encoding/decoding filters used by win32ext. This solution is tricky to
implement and invasive, instead we prefer to address the win32ext case, by
offering a way to ignore input EOLs when patching and rewriting them when
saving the patched result.

#!/bin/sh

"$TESTDIR/hghave" darcs || exit 80
if darcs --version 2>&1 | grep '^2\.' > /dev/null; then
    # FIXME: darcs 2 will fail with
    ### Abort: timeout after 180 seconds.
    echo 'skipped: test currently disabled for darcs 2'
    exit 80
fi

echo "[extensions]" >> $HGRCPATH
echo "convert=" >> $HGRCPATH
echo 'hgext.graphlog =' >> $HGRCPATH

DARCS_EMAIL='[e-mail]'; export DARCS_EMAIL
HOME=do_not_use_HOME_darcs; export HOME

# skip if we can't import elementtree
mkdir dummy
mkdir dummy/_darcs
if hg convert dummy 2>&1 | grep ElementTree > /dev/null; then
    echo 'skipped: missing feature: elementtree module'
    exit 80
fi

echo % initialize darcs repo
mkdir darcs-repo
cd darcs-repo
darcs init
echo a > a
darcs record -a -l -m p0
cd ..

echo % branch and update
darcs get darcs-repo darcs-clone >/dev/null
cd darcs-clone
echo c >> a
echo c > c
darcs record -a -l -m p1.1
cd ..

echo % update source
cd darcs-repo
echo b >> a
echo b > b
darcs record -a -l -m p1.2

echo % merge branch
darcs pull -a ../darcs-clone
echo e > a
darcs record -a -l -m p2
cd ..

glog()
{
    hg glog --template '{rev} "{desc|firstline}" files: {files}\n' "$@"
}

hg convert darcs-repo darcs-repo-hg 2>&1 | grep -v hGetLine | grep -v '^$'
# The converter does not currently handle patch conflicts very well.
# When they occur, it reverts *all* changes and moves forward,
# letting the conflict resolving patch fix collisions.
# Unfortunately, non-conflicting changes, like the addition of the
# "c" file in p1.1 patch are reverted too.
# Just to say that manifest not listing "c" here is a bug.
glog -R darcs-repo-hg
hg up -q -R darcs-repo-hg
hg -R darcs-repo-hg manifest --debug