tiny script for refactoring

virnm.bash

#!/usr/local/bin/bash

#or this !/bin/bash

trap 'echo "" ; exit 1' SIGINT

shopt -s globstar

usage() {
    echo "Usage: [-i|--include=<.*>] [-d|--dir=<.*>] [-s|--semiauto] REGEXP_FROM STRING_TO"
}

TEMP=`getopt -o i:d:s --long include:,dir:,semiauto -n 'virefac' -- "$@"`
eval set -- "$TEMP"

REGEXP_FROM="${@: -2:1}"
STRING_TO="${@: -1:1}"
INCLUDE="*"
DIR="."
SEMIAUTO=false

while true ; do
    case "$1" in
        -i|--include) INCLUDE="$2" ; shift 2 ;;
        -d|--dir) DIR="$2" ; shift 2 ;;
        -s|--semiauto) SEMIAUTO=true ; shift 1 ;;
        --) shift ; break ;;
        *) usage ; exit 1 ;;
    esac
done


for f in $DIR/**/$INCLUDE; do
    str=`grep "$f" -e "$REGEXP_FROM"`
    if [ ! -z "$str" ]; then
        if [ "$SEMIAUTO" == true ]; then
            sed -i "s/$REGEXP_FROM/$STRING_TO/g" "$f"
            echo "Changed $f"
        else
            printf "%s" "Open $f? [y/n] "
            read -n 1 INPUT
            echo ""
            if [[ "$INPUT" == "y" ]]; then
                vim -c 'set ls=2' -c "%s/$REGEXP_FROM/$STRING_TO/cg" "$f"
            fi
        fi
    fi  

    fn=`basename "$f" | grep "$REGEXP_FROM"`
    if [ ! -z "$fn" ]; then
        dst_name=`echo "$fn" | sed "s/$REGEXP_FROM/$STRING_TO/"`
        dst=`dirname "$f"`"/$dst_name"
        printf "%s\n       $s" "Rename \"$f\" to" "\"$dst\"? [y/n] "
        read -n 1 INPUT
        echo ""
        if [[ "$INPUT" == "y" ]]; then
            mv "$f" "$dst"
        fi  
    fi  
done