format.sh

#!/bin/bash
# Copyright 2024 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 -o errexit
set -o pipefail

usage() {
    echo "Usage: $0 [-c|--check]"
    echo "  -c,  --check         check format instead of formatting the code"
    exit 1
}

if [[ $# -gt 1 ]]; then
    usage
fi

CHECK=0

while [[ $# -gt 0 ]]; do
    case $1 in
        -c | --check)
            CHECK=1
            shift
            ;;
        *)
            usage
            ;;
    esac
done

CLANG_ARGS="-i"
MDFORMAT_ARGS="--wrap 80"

set -o xtrace

if [[ $CHECK == 1 ]]; then
    CLANG_ARGS="--dry-run -Werror"
    MDFORMAT_ARGS="--check"
fi

find src -name "*.c" -o -name "*.h" | xargs clang-format $CLANG_ARGS
mdformat $MDFORMAT_ARGS *.md