#!/bin/bash

# tarr - jeremy warner
# because remembering tar options is impossible

# flags
decompress=
compress=
target=
list=

help_msg(){
    echo "usage: tarr <command> <target>"
    echo "	ls		list files inside tarball"
    echo "	c|comp		compress target folder"
    echo "	d|decomp	decompress target tarball"
    echo "	h|help		show help and quit"
    echo "tarr - tar tool helper"
    exit 1
}

# check if no args are provided
[ $# == 0 ] && help_msg

# parse args
for arg; do
    if [[ $arg == "ls" ]]; then list=1
    elif [[ $arg == "c" || $arg == "comp" ]]; then compress=1
    elif [[ $arg == "d" || $arg == "decomp" ]]; then decompress=1
    elif [[ $arg == "h" || $arg == "help" || $arg == "-h" ]]; then help_msg
    elif [[ -z $target ]]; then target="$arg"
    else target="$target $arg"
    fi
done

# check to see any valid commands matched
! [[ $compress || $decompress || $list ]] && help_msg

# handle tar cases below

if [[ $compress ]]; then
    ext=".tar.bz2"
    out="$target$ext"
    tar cvfj "$out" "$target"

elif [[ $decompress ]]; then
    tar -xvf "$target"

elif [[ $list ]]; then
    tar -tvf "$target"
fi