Script to run ClangFormat

check_format.sh

#!/bin/bash

# Template: https://gist.github.com/ruslo/09b3e10a21522d43c354d5eb6299f22d

set -e

if [ ! $# -eq 0 ];
then
  echo "Unexpected arguments: '$*'"
  exit 1
fi

THIS_SCRIPT_PATH="${BASH_SOURCE:-$0}"
THIS_SCRIPT_DIR="`dirname "${THIS_SCRIPT_PATH}"`"

EXPECTED_FILE="${THIS_SCRIPT_DIR}/check_format.sh"
if [ ! -r "${EXPECTED_FILE}" ];
then
  echo "File not found: ${EXPECTED_FILE}"
  exit 1
fi

EXPECTED_CFG_FILE="${THIS_SCRIPT_DIR}/.clang-format"
if [ ! -r "${EXPECTED_CFG_FILE}" ];
then
  echo "File not found: ${EXPECTED_CFG_FILE}"
  exit 1
fi

cd "${THIS_SCRIPT_DIR}"

echo "Working directory: `pwd`"

which clang-format

clang-format --version

TEMP_FILE=/tmp/__clang_format_check.txt
echo "Using temp file: ${TEMP_FILE}"

for to_check in `find . \
    -type f \( -name '*.cpp' -or -name '*.h' \) \
    ! -path './_builds/*' \
    ! -path './third_party/*' \
    ! -path './_deps/*' \
    ! -path '*/_venv/*' \
    ! -path "${HOME}/opt"`;
do
  echo "Checking ${to_check} ..."
  clang-format -style=file ${to_check} > ${TEMP_FILE}

  # https://stackoverflow.com/a/55157772
  if ! output=$(diff ${to_check} ${TEMP_FILE});
  then
    echo "${output}"
    echo "---"
    echo "Files differ: ${to_check} ${TEMP_FILE}"
    exit 1
  fi
done

echo "Done"