scripts/precommit.sh

#!/bin/bash
# Copyright 2023 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.

# Script to run gofmt, golint, and gazelle before commiting.
# To install, use the following command:
# ./scripts/install_precommit.sh

set -e

SCRIPT_DIR=$(dirname "${BASH_SOURCE[0]}")
source "${SCRIPT_DIR}/infra/common.sh" || exit $?

cd "$(get_workspace_root)"

STAGED_GO_FILES=$(git diff --cached --name-only --diff-filter=d | grep ".go$" || true)

# Ensures that non-interactive shell sessions can run Go tools
if command -v go &>/dev/null; then
    export PATH="$PATH:$(go env GOPATH)/bin"
fi

# Use downloaded version of bazel instead of bazelisk
./scripts/infra/bootstrap_prebuilts.sh

# Run go mod tidy
run_go_mod_tidy

GAZELLEPASS=true
echo Running Gazelle...
if ! run_bazel_tool //:gazelle; then
  GAZELLEPASS=false
fi

LINTPASS=true
echo Running gofmt...
run_bazel_tool @io_bazel_rules_go//go -- fmt ./...



PASS=true
if ! $LINTPASS; then
  printf "\033[0;30m\033[41mThere are lint errors. Please fix!\033[0m\n"
  PASS=false
fi

if ! $GAZELLEPASS; then
  printf "\033[0;30m\033[41mbazelisk run //:gazelle failed. Please fix the errors and try again.\033[0m\n"
  PASS=false
fi

if ! git diff --exit-code &> /dev/null; then
  printf "\033[0;30m\033[41mPrecommit made changes to source. Please check the changes and re-stage files.\033[0m\n"
  PASS=false
fi

if ! $PASS; then
  printf "\033[0;30m\033[41mCOMMIT FAILED\033[0m\n"
  exit 1
else
  printf "\033[0;30m\033[42mCOMMIT SUCCEEDED\033[0m\n"
fi