tools/deb2targz

   1 #! /bin/bash
   2 ###############################################################################
   3 #
   4 # deb2targz - converts Debian binary packages into tarballs
   5 #
   6 # Copyright (C) 2006-2020 Cygport authors
   7 # Provided by the Cygwin project <https://cygwin.com/>
   8 #
   9 # cygport is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # cygport is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with cygport.  If not, see <https://www.gnu.org/licenses/>.
  21 #
  22 ################################################################################
  23
  24 set -e
  25
  26 if (( $# < 1 ))
  27 then
  28         echo "$0: No packages specified" > /dev/stderr
  29         exit 1
  30 fi
  31
  32 if ! hash ar &> /dev/null
  33 then
  34         echo "$0: ar not found, install binutils" > /dev/stderr
  35         exit 2
  36 fi
  37
  38 for deb in $@
  39 do
  40         deb=$(readlink -f $deb)
  41
  42         echo -n "$deb: "
  43
  44         if [ ! -f $deb ]
  45         then
  46                 echo "ERROR: file not found"
  47                 continue
  48         fi
  49
  50         case "$(file -b $deb)" in
  51                 Debian*) ;;
  52                 *)      echo "ERROR: not a Debian package"
  53                         continue ;;
  54         esac
  55
  56         t=$(mktemp -d)
  57
  58         # .debs are 'ar' archives containing three files: debian-binary (text
  59         # file containing package format version), control.tar.gz (small amount
  60         # of data, including debian/control used by package manager), and
  61         # data.tar.gz, the actual file contents.  We need only the latter.
  62
  63         pushd $t > /dev/null
  64         ar x $deb data.tar.gz
  65         mv data.tar.gz ${deb%.deb}.tar.gz
  66         popd > /dev/null
  67
  68         rm -fr $t
  69
  70         echo "Success"
  71 done