tests/test-convert-git

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" git || exit 80

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

GIT_AUTHOR_NAME='test'; export GIT_AUTHOR_NAME
GIT_AUTHOR_EMAIL='[e-mail]'; export GIT_AUTHOR_EMAIL
GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0000"; export GIT_AUTHOR_DATE
GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"; export GIT_COMMITTER_NAME
GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"; export GIT_COMMITTER_EMAIL
GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"; export GIT_COMMITTER_DATE

count=10
commit()
{
    GIT_AUTHOR_DATE="2007-01-01 00:00:$count +0000"
    GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
    git commit "$@" >/dev/null 2>/dev/null || echo "git commit error"
    count=`expr $count + 1`
}

mkdir git-repo
cd git-repo
git init-db >/dev/null 2>/dev/null
echo a > a
mkdir d
echo b > d/b
git add a d
commit -a -m t1

# Remove the directory, then try to replace it with a file
# (issue 754)
git rm -f d/b
commit -m t2
echo d > d
git add d
commit -m t3

echo b >> a
commit -a -m t4.1

git checkout -b other HEAD^ >/dev/null 2>/dev/null
echo c > a
echo a >> a
commit -a -m t4.2

git checkout master >/dev/null 2>/dev/null
git pull --no-commit . other > /dev/null 2>/dev/null
commit -m 'Merge branch other'
cd ..

hg convert --datesort git-repo
hg up -q -R git-repo-hg
hg -R git-repo-hg tip -v

count=10
mkdir git-repo2
cd git-repo2
git init-db >/dev/null 2>/dev/null

echo foo > foo
git add foo
commit -a -m 'add foo'

echo >> foo
commit -a -m 'change foo'

git checkout -b Bar HEAD^ >/dev/null 2>/dev/null
echo quux >> quux
git add quux
commit -a -m 'add quux'

echo bar > bar
git add bar
commit -a -m 'add bar'

git checkout -b Baz HEAD^ >/dev/null 2>/dev/null
echo baz > baz
git add baz
commit -a -m 'add baz'

git checkout master >/dev/null 2>/dev/null
git pull --no-commit . Bar Baz > /dev/null 2>/dev/null
commit -m 'Octopus merge'

echo bar >> bar
commit -a -m 'change bar'

git checkout -b Foo HEAD^ >/dev/null 2>/dev/null
echo >> foo
commit -a -m 'change foo'

git checkout master >/dev/null 2>/dev/null
git pull --no-commit -s ours . Foo > /dev/null 2>/dev/null
commit -m 'Discard change to foo'

cd ..

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

splitrepo()
{
    msg="$1"
    files="$2"
    opts=$3
    echo "% $files: $msg"
    prefix=`echo "$files" | sed -e 's/ /-/g'`
    fmap="$prefix.fmap"
    repo="$prefix.repo"
    for i in $files; do
	echo "include $i" >> "$fmap"
    done
    hg -q convert $opts --filemap "$fmap" --datesort git-repo2 "$repo"
    hg up -q -R "$repo"
    glog -R "$repo"
    hg -R "$repo" manifest --debug
}

echo '% full conversion'
hg -q convert --datesort git-repo2 fullrepo
hg up -q -R fullrepo
glog -R fullrepo
hg -R fullrepo manifest --debug

splitrepo 'octopus merge' 'foo bar baz'

splitrepo 'only some parents of an octopus merge; "discard" a head' 'foo baz quux'