php-remove-commented-code.bash

#!/usr/bin/env bash
# Usage: {script} DIRECTORY
# Find PHP's commented code and remove then.
#
#   --help, -h      Displays this help
#
# Report bugs to Henrique Moody <henriquemoody@gmail.com>
#
declare -r SCRIPT_NAME=$(basename ${0})

_help()
{
    sed -E 's/^#\s?(.*)/\1/g' "${0}" |
        sed -nE '/^Usage/,/^Report/p' |
        sed "s/{script}/${SCRIPT_NAME}/g"
}

if [[ "${1}" == '--help' ]] || [[ "${1}" == '-h' ]]; then
    _help
    exit 0
elif [[ -z "${1}" ]]; then
    _help 1>&2
    exit 1
elif [ ! -d "${1}" ]; then
    echo "${SCRIPT_NAME}: \`${1}\` is not a valid directory" 1>&2
    exit 2
fi

declare PATTERN='^ *(\/\/|#).*(.+).*;( *|\/\/.*)$'
declare DIRECTORY="${1}"

_find_files()
{
    egrep --color -Rn "${PATTERN}$" --include="*.php" "${DIRECTORY}" |
        cut -d ':' -f '1' |
        sort -u
}

_find_files |
    while read filename; do
        sed -Ei "/${PATTERN}/d" "${filename}"
    done

echo "Finished!"