## strip trailing whitespace

for file in `git diff --check --cached | grep '^[^+-]' | grep -o '^.*[0-9]\+:'` ; do

    file_name=`echo ${file} | grep -o '^[^:]\+'`

    line_number=`echo ${file} | grep -oP '(?<=:)[0-9]+(?=:)'`

    # I think the reason there are two sed commands here

    # is that 'sed -i' is different on different systems.

    # shoot me.

    (sed -i "${line_number}s/\s*$//" "${file_name}" > /dev/null 2>&1 \

        || sed -i '' -E "${line_number}s/\s*$//" "${file_name}")

    git add ${file_name}

    echo "Re-wrote ${file_name} to trim whitespace."

done

## remove 'x' bit and apply kr style for source file

for file in `git diff --cached  --name-only`; do

    filename=$(basename "$file")

    extension="${filename##*.}"

    dir_name=$(dirname "$file")

    if test "$extension" = "h" || test "$extension" = "c" || test "$extension" = "cpp"; then

        # remove the 'x' bit for files

        echo "remove 'x' for ${file}"

        chmod -x ${file}

    fi

done

echo "****************************************************"

echo "* applying coding style to the changed files, you can:"

echo "*     a) [check ] it by 'git diff'"

echo "*     b) [accept] it by 'git commit -a --amend'"

echo "*     c) [reject] it by 'git reset --hard'"

echo "****************************************************"