#!/bin/bash

# Filename: ex.sh
# Author: GJS (homelab-alpha)
# Date: 2024-05-26T11:59:43+02:00
# Version: 1.0

# Description: This script provides a convenient way to extract various archive
# formats including tar, zip, gzip, bzip2, rar, etc. It simplifies the
# extraction process by automatically detecting the file format and applying the
# appropriate extraction method.

# Usage: ex <input_file_or_directory>

# Function: ex

# Function to extract various archive formats
function ex() {
  # Check if the input file exists
  if [ -f "$1" ]; then
    # Determine the file type and perform extraction accordingly
    case "$1" in
    *.tar.bz2) tar -jxvf "$1" ;;                         # Extract tar.bz2 archives
    *.tar.gz) tar -zxvf "$1" ;;                          # Extract tar.gz archives
    *.bz2) bunzip2 "$1" ;;                               # Extract .bz2 files
    *.dmg) hdiutil mount "$1" ;;                         # Mount .dmg disk images
    *.gz) gunzip "$1" ;;                                 # Extract .gz files
    *.tar) tar -xvf "$1" ;;                              # Extract .tar archives
    *.tbz2) tar -jxvf "$1" ;;                            # Extract .tbz2 archives
    *.tgz) tar -zxvf "$1" ;;                             # Extract .tgz archives
    *.zip | *.ZIP) unzip "$1" ;;                         # Extract .zip archives
    *.pax) pax -r <"$1" ;;                               # Extract .pax archives without using 'cat'
    *.pax.Z) uncompress "$1" --stdout | pax -r ;;        # Extract compressed .pax archives
    *.rar) unrar x "$1" ;;                               # Extract .rar archives
    *.Z) uncompress "$1" ;;                              # Extract .Z archives
    *) echo "$1 cannot be extracted/mounted via ex()" ;; # Unsupported file format
    esac
  else
    echo "$1 is not a valid file" # Print error message for non-existent files
  fi
}