#!/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 "$morphsrepo"
git checkout --quiet -b overlap master
cat <<EOF >overlap-system.morph
{
  "name": "overlap-system",
  "kind": "system",
  "arch": "$(uname -m)",
  "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