#!/bin/sh

set -e

repo_dir="`mktemp -d`"
repo="$repo_dir/repo"
git init "$repo"
(
  cd "$repo"
  echo Contents > test-file
  git add test-file
  git commit -m 'Commit message'
)

conf="`mktemp`"
cat > "$conf" <<EOF
[foo]
git_repo = file://$repo
git_ref = master
EOF

python3 ./pinch.py pin "$conf"

(
  cd "$repo"
  echo Other contents > other-file
  git add other-file
  git commit --amend -m 'Amended commit message'
)

if python3 ./pinch.py pin "$conf";then
  echo "FAIL: non-ancestor commit should be rejected"
  exit 1
else
  echo PASS
fi

rm -rf "$repo_dir" "$conf"