#!/bin/sh
#
# Copyright (C) 2011-2014  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.


# If a system has multiple strata that have the same files in them,
# then this should be noted.

set -eu

cache="$DATADIR/cache/artifacts"
chunkrepo="$DATADIR/chunk-repo"
morphsrepo="$DATADIR/morphs"

cd "$morphsrepo"
git checkout --quiet -b overlap master
cat <<EOF >overlap-system.morph
name: overlap-system
kind: system
arch: $("$SRCDIR/scripts/test-morph" print-architecture)
strata:
  - morph: foo-baz-stratum
  - morph: foo-barqux-stratum
EOF
cat <<EOF >foo-baz-stratum.morph
name: foo-baz-stratum
kind: stratum
chunks:
  - name: overlap-foo-baz
    repo: test:chunk-repo
    ref: overlap
    build-mode: test
    build-depends: []
  - name: linux
    repo: test:kernel-repo
    ref: master
    build-mode: test
    build-depends:
      - overlap-foo-baz
EOF
cat <<EOF >foo-barqux-stratum.morph
name: foo-barqux-stratum
kind: stratum
chunks:
  - name: overlap-foobar
    repo: test:chunk-repo
    ref: overlap
    build-mode: test
    build-depends: []
  - name: overlap-fooqux
    repo: test:chunk-repo
    ref: overlap
    build-mode: test
    build-depends:
      - overlap-foobar
EOF
git add overlap-system.morph foo-baz-stratum.morph foo-barqux-stratum.morph
git commit --quiet -m "add overlapping system"

cd "$chunkrepo"
git checkout --quiet -b overlap master
cat <<EOF >overlap-foo-baz.morph
name: overlap-foo-baz
kind: chunk
install-commands:
  - mkdir -p "\$DESTDIR"/bin
  - for f in foo bar baz; do echo echo \$f >"\$DESTDIR"/bin/\$f; done
EOF

cat <<EOF >overlap-foobar.morph
name: overlap-foobar
kind: chunk
install-commands:
  - mkdir -p "\$DESTDIR"/usr/bin "\$DESTDIR"/bin
  - echo echo foobar >"\$DESTDIR"/usr/bin/foobar
  - ln -s /usr/bin/foobar "\$DESTDIR"/bin/foo
  - ln -s /usr/bin/foobar "\$DESTDIR"/bin/bar
EOF

cat <<EOF >overlap-fooqux.morph
name: overlap-fooqux
kind: chunk
install-commands:
  - mkdir -p "\$DESTDIR"/usr/bin "\$DESTDIR"/bin
  - for f in qux fooqux; do echo echo \$f >"\$DESTDIR"/usr/bin/\$f; done
  - ln -s /usr/bin/fooqux "\$DESTDIR"/bin/foo
EOF
git add overlap-*.morph

git commit --quiet -m 'Add overlapping chunks'

"$SRCDIR/scripts/test-morph" \
    build-morphology test:morphs overlap overlap-system > /dev/null
"$SRCDIR/scripts/list-overlaps" groups \
    "$cache"/*.system.overlap-system*.overlaps |
while IFS='\n' read overlaps; do
    echo $overlaps
    "$SRCDIR/scripts/list-overlaps" list-files \
        "$cache"/*.system.overlap-system*.overlaps $overlaps
done