contrib/pacdiff

   1 #!/bin/bash
   2 #   pacdiff : a simple pacnew/pacorig/pacsave updater
   3 #
   4 #   Copyright (c) 2007 Aaron Griffin <aaronmgriffin@gmail.com>
   5 #
   6 #   This program is free software; you can redistribute it and/or modify
   7 #   it under the terms of the GNU General Public License as published by
   8 #   the Free Software Foundation; either version 2 of the License, or
   9 #   (at your option) any later version.
  10 #
  11 #   This program is distributed in the hope that it will be useful,
  12 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 #   GNU General Public License for more details.
  15 #
  16 #   You should have received a copy of the GNU General Public License
  17 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19
  20 diffprog=${DIFFPROG:-vimdiff}
  21 locate=0
  22
  23 usage() {
  24         echo "pacdiff : a simple pacnew/pacorig/pacsave updater"
  25         echo "Usage : pacdiff [-l]"
  26         echo "The -l/--locate flag makes pacdiff use locate rather than find"
  27 }
  28
  29 cmd() {
  30         if [ $locate -eq 1 ]; then
  31                 locate -0 -e -b \*.pacnew \*.pacorig \*.pacsave
  32         else
  33                 find /etc/ \( -name \*.pacnew -o -name \*.pacorig -o -name \*.pacsave \) -print0
  34         fi
  35 }
  36
  37 if [ $# -gt 0 ]; then
  38         case $1 in
  39                 -l|--locate)
  40                 locate=1;;
  41                 *)
  42                 usage; exit 0;;
  43         esac
  44 fi
  45
  46 # see http://mywiki.wooledge.org/BashFAQ/020
  47 while IFS= read -u 3 -r -d '' pacfile; do
  48         file="${pacfile%.pac*}"
  49         echo "File: $file"
  50         if [ ! -f "$file" ]; then
  51                 echo "  $file does not exist"
  52                 rm -i "$pacfile"
  53                 continue
  54         fi
  55         check="$(cmp "$pacfile" "$file")"
  56         if [ -z "${check}" ]; then
  57                 echo "  Files are identical, removing..."
  58                 rm "$pacfile"
  59         else
  60                 echo -n "  File differences found. (V)iew, (S)kip, (R)emove: [v/s/r] "
  61                 while read c; do
  62                         case $c in
  63                                 r|R) rm "$pacfile"; break ;;
  64                                 v|V)
  65                                 $diffprog "$pacfile" "$file"
  66                                 rm -i "$pacfile"; break ;;
  67                                 s|S) break ;;
  68                                 *) echo -n "  Invalid answer. Try again: [v/s/r] "; continue ;;
  69                         esac
  70                 done
  71         fi
  72 done 3< <(cmd)
  73
  74 exit 0
  75
  76 # vim: set ts=2 sw=2 noet: