#!/bin/sh

# Default behavior: Extract archive into new directory
# Behavior with `-c` option: Extract contents into current directory

while getopts "hc" o; do case "${o}" in
  c) extracthere="True" ;;
  *) printf 'Options:\n   -c: Extract archive into current directory rather than a new one.\n' && exit ;;
  esac done

if [ -z "$extracthere" ]; then
  archive="$(readlink -f "$*")" &&
    directory=${archive%.*} &&
    mkdir -p "$directory" &&
    cd "$directory" || exit
else
  archive="$(readlink -f "$(echo "$*" | cut -d' ' -f2)")"
fi

[ "$archive" = "" ] && printf 'Give archive to extract as argument.\n' && exit

if [ -f "$archive" ]; then
  case "$archive" in
  *.tar.bz2 | *.tar.xz | *.tbz2) tar xvjf "$archive" ;;
  *.tar.gz | *.tgz) tar xvzf "$archive" ;;
  *.lzma) unlzma "$archive" ;;
  *.bz2) bunzip2 "$archive" ;;
  *.rar) unrar x -ad "$archive" ;;
  *.gz) gunzip "$archive" ;;
  *.tar) tar xvf "$archive" ;;
  *.zip | *.jar | *.war) unzip "$archive" ;;
  *.Z) uncompress "$archive" ;;
  *.7z) 7z x "$archive" ;;
  *.xz) unxz "$archive" ;;
  *.exe) cabextract "$archive" ;;
  *.ace) unace x "$archive" ;;
  *) printf "extract: '%s' - unknown archive method\\n" "$archive" ;;
  esac
else
  printf 'File "%s" not found.\n' "$archive"
fi