iankelling.org Git - small-misc-bash/blob - ex

   1 #!/bin/bash
   2 # Copyright (C) 2014 Ian Kelling
   3
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 ex() {
  17   local help="Usage: ex [--help|-q] FILE...
  18 Extract many types of files
  19
  20 Based on their extensions,
  21 7z [tar.]bz2 deb [tar.]gz iso dsc rar rpm sfs tar xpi [tar.]xz zip Z.
  22 See source for exact file extensions.
  23 Note: dtrx (package & command) extracts most of these plus some others."
  24
  25   local quiet=false
  26   case $1 in
  27     --help)
  28       echo "$help"
  29       return 0
  30       ;;
  31     -q)
  32       quiet=true
  33       shift
  34       ;;
  35   esac
  36   local x super restore_nullglob f cmd
  37   for x in "$@"; do
  38     case "$x" in
  39       # tars first, so they are higher pri than non-tar extensions
  40       *.tar )
  41         $quiet || echo tar xf "$x"
  42         tar xf "$x"
  43         ;;
  44       *.tar.bz2 | *.tbz2 )
  45         $quiet || echo tar xjf "$x"
  46         tar xjf "$x"
  47         ;;
  48       *.tar.gz | *.tgz )
  49         $quiet || echo tar xzf "$x"
  50         tar xzf "$x"
  51         ;;
  52       *.tar.xz )
  53         $quiet || echo tar Jxf "$x"
  54         tar Jxf "$x"
  55         ;;
  56       *.tar.zst )
  57         $quiet || echo tar -I unzstd -xf "$x"
  58         tar -I unzstd -xf "$x"
  59         ;;
  60       *.zst )
  61         $quiet || echo unzstd "$x"
  62         unzstd "$x"
  63         ;;
  64       *.xz)
  65         $quiet || echo pixz -d "$x"
  66         pixz -d "$x"
  67         ;;
  68       *.7z )
  69         if type -p 7za &>/dev/null; then
  70           cmd=7za
  71         else
  72           cmd=7zr
  73         fi
  74         $quiet || echo 7zr x "$x"
  75         $cmd x "$x"
  76         ;;
  77       *.bz2 )
  78         $quiet || echo bunzip2 "$x"
  79         bunzip2 "$x"
  80         ;;
  81       *.deb )
  82         $quiet || echo ar x "$x"
  83         ar x "$x"
  84         restore_nullglob=false
  85         if ! shopt -q nullglob; then
  86           restore_nullglob=true
  87         fi
  88         tmp=(data.tar.* control.tar.*)
  89         if $restore_nullglob; then
  90           shopt -u nullglob
  91         fi
  92         if (( ${#tmp[@]} != 2 )); then
  93           echo "error: could not find data.tar.* or control.tar.*" >&2
  94           return 1
  95         fi
  96         for f in ${tmp[@]}; do
  97           case $f in
  98             *.xz)
  99               $quiet || echo tar xJf $f
 100               tar xJf $f
 101               rm -f $f
 102               ;;
 103             *.zst)
 104               $quiet || echo tar -I unzstd -xf $f
 105               tar -I unzstd -xf $f
 106               rm -f $f
 107               ;;
 108             *.gz)
 109               $quiet || echo tar xzf $f
 110               tar xzf $f
 111               rm -f $f
 112               ;;
 113             *)
 114               echo "ex: ERROR: file i didnt expect: $f"
 115               ;;
 116           esac
 117         done
 118         ;;
 119       *.dsc)
 120         $quiet || echo dpkg-source -x "$x"
 121         dpkg-source -x "$x"
 122         ;;
 123       *.gz )
 124         $quiet || echo gunzip "$x"
 125         gunzip "$x"
 126         ;;
 127       *.iso )
 128         local super
 129         if [[ $EUID != 0 ]]; then
 130           super=sudo
 131         fi
 132         local temp_dir
 133         temp_dir=$(mktemp -d)
 134         $super losetup -f
 135         $quiet || echo $super mount -o loop "$x" "$temp_dir"
 136         $super mount -o loop "$x" "$temp_dir"
 137         local dir="${x%%.iso}"
 138         mkdir "$dir"
 139         $quiet || cp -a "$temp_dir"/* "$dir"
 140         cp -a "$temp_dir"/* "$dir"
 141         $quiet || $super umount "$temp_dir"
 142         $super umount "$temp_dir"
 143         ;;
 144       *.jar)
 145         $quiet || echo jar xf "$x"
 146         jar xf "$x"
 147         ;;
 148       *.r[0-9][0-9]|*.rar )
 149         $quiet || echo unrar x "$x"
 150         unrar x "$x"
 151         ;;
 152       *.rpm )
 153         $quiet || echo "rpm2cpio $x | cpio --extract --make-directories"
 154         rpm2cpio "$x" | cpio --extract --make-directories
 155         ;;
 156       *.sfs)
 157         $quiet || echo $super unsquashfs "$x"
 158         $super unsquashfs "$x"
 159         ;;
 160       *.Z )
 161         $quiet || echo uncompress "$x"
 162         uncompress "$x"
 163         ;;
 164       *.zip|*.xpi )
 165         $quiet || echo unzip "$x"
 166         unzip "$x"
 167         ;;
 168
 169       *)  echo "I don't know how to extract $x";;
 170     esac
 171   done
 172 }
 173 ex "$@"