#!/bin/bash
# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


set -euo pipefail

CHANGED_FILES=$(git diff --name-only "origin/${1:-main}"...HEAD)

echo "Checking python/* for undocumented changes..."

if echo "$CHANGED_FILES" | grep -qE '^python/.*$'; then
  if ! echo "$CHANGED_FILES" | grep -qE '^python/CHANGELOG\.md$'; then
    echo "::warning title=Changelog Missing::Some changes in the Python package are not documented in python/CHANGELOG.md"
  fi
fi
