#!/bin/bash

# Some aliases to make it easier to deal with archives
#
if command -v tar &> /dev/null;
then
  function gztar()
  {
    [ -d "$1" ] || { echo "usage: gztar <dir> [tar options]" 1>&2; exit 1; }
    local DIR="$1"
    shift
    tar "$@" -czvf "$(basename "$DIR").tar.gz" "$DIR"
  }

  function bztar()
  {
    [ -d "$1" ] || { echo "usage: bztar <dir> [tar options]" 1>&2; exit 1; }
    local DIR="$1"
    shift
    tar "$@" -cjvf "$(basename "$DIR").tar.bz2" "$DIR"
  }

  function xztar()
  {
    [ -d "$1" ] || { echo "usage: xztar <dir> [tar options]" 1>&2; exit 1; }
    local DIR="$1"
    shift
    tar "$@" -cJvf "$(basename "$DIR").tar.xz" "$DIR"
  }

  function untar()
  {
    [ -f "$1" ] || return
    # the 'a' options detects the compression from the file name
    # http://petereisentraut.blogspot.it/2012/05/time-to-retrain-fingers.html
    tar -xavf "$1"
  }

  alias gzuntar=untar
  alias bzuntar=untar
  alias xzuntar=untar

  complete -o default -f -X '!*.?(t)bz2' bzuntar
  complete -o default -f -X '!*.@(Z|gz|tgz|Gz|dz)' gzuntar
  complete -o dirnames gztar bztar
fi

if command -v unzip &> /dev/null;
then
  # Unzip files into a directory names as the zip file basename
  function dunzip()
  {
    local FILENAME="$1"
    local DIRNAME
    DIRNAME="$(basename "$FILENAME" .zip)"
    shift;

    [ -d "$DIRNAME" ] && { echo "destination exists!"; return 1; }
    mkdir "$DIRNAME" && unzip "$@" -d "$DIRNAME" "$FILENAME"
  }

  complete -o default -f -X '!*.@(zip|ZIP)' dunzip
fi