check_format.sh

#!/bin/bash
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EXIT_CODE=0
echo "\
############################################################################
Checking formatting of modified files. It is expected that the files were
formatted with clang-format 10.0.0. It is also expected that clang-format
version 10.0.0 is used for the check. Otherwise the result can ne unexpected.
############################################################################"

CLANG_FORMAT="clang-format"
[[ ! -z $1 ]] && CLANG_FORMAT=$1
REQUIRED_VERSION="10.0.0"
VERSION_STRING="clang-format version $REQUIRED_VERSION.*"
CURRENT_VERSION="$($CLANG_FORMAT --version)"
if ! [[ $CURRENT_VERSION =~ $VERSION_STRING ]] ; then
    echo WARNING: clang-format version $REQUIRED_VERSION is required but $CURRENT_VERSION is used.
    echo The results can be unexpected.
fi

# Check all source files.
# For benchmarks folder do not check 03_complex, as these tests come from real projects with their formatting.
FILES=`ls src/*.cpp src/*.h src/xe/*.cpp src/xe/*.h *.cpp builtins/builtins-c-* benchmarks/{01,02}*/*{cpp,ispc}`
for FILE in $FILES; do
    $CLANG_FORMAT $FILE | cmp  $FILE >/dev/null
    if [ $? -ne 0 ]; then
        echo "[!] INCORRECT FORMATTING! $FILE" >&2
            EXIT_CODE=1
        fi
    done
if [ $EXIT_CODE -eq 0 ]; then 
    echo "No formatting issues found"
fi
exit $EXIT_CODE