[php-entity-finder] Find PHP classes or interfaces.

php-entity-finder.sh

#!/usr/bin/env bash
# Usage: {script} ENTITY
#

declare ENTITIES=${1}

find_entity()
{
    local entity=${1}
    local spaces="${2}"

    while read line; do
        echo -n "${spaces} ${entity}: "
        echo "${line}" | egrep --color=auto "\b${entity}\b"
        pattern=".*(class|interface) +([^ ]+).+(extends|implements) +${entity}.*";
        echo "${line}" | egrep -q "${pattern}"
        if [[ ${?} -eq 0 ]]; then
            child_entity=$(echo ${line} | cut -d ':' -f 3  | sed -r "s/${pattern}/\2/g");
            if ! [[ "${ENTITIES}" =~ "\b${child_entity}\b" ]]; then
                ENTITIES="${ENTITIES}:${child_entity}"
                find_entity ${child_entity} "${spaces}    "
            fi
        fi
    done < <(egrep -Rn "\b${entity}\b" --include=*.php . | sort)
}

find_entity ${1}