Add script to format code, leaving the file untouched if not changed

[thirdparty/pdns.git] / build-scripts / format-code

#!/bin/sh

#
# Reformat code, but do not touch if no changes.
# Report if a files was changed.
#

if [ "$0" != "./build-scripts/format-code" ]; then
    echo "Please run me from the root checkout dir"
    exit 1
fi

if [ ! -e .clang-format ]; then
    echo "No .clang-format file found in .";
    exit 1
fi

for file in "${@}"; do
    if ! clang-format -style=file "$file" > "$file.xxx"; then
        rm "$file.xxx"
    else
        if ! cmp -s "$file" "$file.xxx"; then
            echo "$file reformatted"
            mv "$file.xxx" "$file"
        else
            rm "$file.xxx"
        fi
    fi
done