clang-format.hook

#!/bin/bash
set -e

readonly VERSION="5.0"

version=$(clang-format -version)

if ! [[ $version == *"$VERSION"* ]]; then
    echo "clang-format version check failed."
    echo "a version contains '$VERSION' is needed, but get '$version'"
    echo "you can install the right version, and make an soft-link to '\$PATH' env"
    exit -1
fi

# https://medicineyeh.wordpress.com/2017/07/13/clang-format-with-pragma/
shift
perl -i -pe 's|#pragma\s+omp|// <TRICKY-CLANG-FORMAT-PRAGMA-FIX> #pragma omp|' "$@"
clang-format -i $@
perl -i -pe 's|// <TRICKY-CLANG-FORMAT-PRAGMA-FIX> ||' "$@"