admin/diff-tar-files

   1 #! /bin/sh
   2
   3 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
   4
   5 # This file is part of GNU Emacs.
   6
   7 # GNU Emacs is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # GNU Emacs is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
  19
  20
  21 if [ $# != 2 ]; then
  22     cat <<EOF
  23 Usage: $0 OLD-TAR NEW-TAR
  24
  25 Print a diff of the files in OLD-TAR and NEW-TAR.  Used for checking
  26 the contents of Emacs tar files.
  27 EOF
  28     exit 1;
  29 fi
  30
  31 old_tar=$1
  32 new_tar=$2
  33
  34 old_tmp=/tmp/old.$$
  35 new_tmp=/tmp/new.$$
  36 trap "rm -f $old_tmp $new_tmp; exit 1" 1 2 15
  37
  38 tar tzf $old_tar | sed -e 's,^[^/]*,,' | sort > $old_tmp
  39 tar tzf $new_tar | sed -e 's,^[^/]*,,' | sort > $new_tmp
  40 diff -u $old_tmp $new_tmp
  41 rm -f $new_tmp $old_tmp