#!/bin/bash
# Copyright 2016 gRPC authors.
#
# 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 -ex

cd $(dirname $0)/../..

DIFF_COMMAND="git diff --name-only HEAD | grep -v ^third_party/"

if [ "x$1" == 'x--pre-commit' ]; then
  if eval $DIFF_COMMAND | grep '^build.yaml$'; then
    ./tools/buildgen/generate_projects.sh
  else
    templates=$(eval $DIFF_COMMAND | grep '\.template$' || true)
    if [ -n "$templates" ]; then
      ./tools/buildgen/generate_projects.sh --templates $templates
    fi
  fi
  CHANGED_FILES=$(eval $DIFF_COMMAND) ./tools/distrib/clang_format_code.sh
  ./tools/distrib/check_copyright.py --precommit
  ./tools/distrib/check_trailing_newlines.sh
else
  ./tools/buildgen/generate_projects.sh
  ./tools/distrib/clang_format_code.sh
  ./tools/distrib/check_copyright.py
  ./tools/distrib/check_trailing_newlines.sh
fi