#!/bin/sh
#
# Copyright (C) 2012-2013  Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.


## "morph merge" should pull changes from a chunk even if its name was changed
## in the branch

set -eu

# Create system branch.
cd "$DATADIR/workspace"
"$SRCDIR/scripts/test-morph" init
"$SRCDIR/scripts/test-morph" branch test:morphs baserock/newbranch

# Rename the chunk, and then commit a seperate change
"$SRCDIR/scripts/test-morph" edit hello-system hello-stratum hello
cd baserock/newbranch/test:hello

cat hello.morph | sed -e 's/"name": "hello"/"name": "goodbye"/' > goodbye.morph
git rm -q hello.morph
git add goodbye.morph
git commit -m "Rename chunk" --quiet

touch newfile.txt
git add newfile.txt
git commit -m "Add new file" --quiet

# Update stratum to point at the renamed chunk
cd ../test:morphs
sed -ie 's/"name": "hello"/"name": "goodbye"/' hello-stratum.morph
git commit --all --quiet -m "Update morph refs for baserock/newbranch"

# Merge changes back to master
cd "$DATADIR/workspace"
"$SRCDIR/scripts/test-morph" checkout test:morphs master
cd master
"$SRCDIR/scripts/test-morph" merge baserock/newbranch

# Morph should have realised that 'goodbye' is not a new chunk,
# and pulled in the changes from 'hello' in the old branch
cd test:hello
[ ! -e hello.morph ]
[ -e goodbye.morph ]
[ -e newfile.txt ]