misc/tools/xzipdiff

   1 #!/bin/sh
   2
   3 from=$1
   4 to=$2
   5 output=$3
   6 case "$from" in /*) ;; *) from=`pwd`/$from ;; esac
   7 case "$to" in /*) ;; *) to=`pwd`/$to ;; esac
   8 case "$output" in /*) ;; *) output=`pwd`/$output ;; esac
   9
  10 excludes="
  11         Xonotic/data/xonotic-*-data.pk3
  12         Xonotic/data/xonotic-*-maps.pk3
  13         Xonotic/data/xonotic-*-music.pk3
  14         Xonotic/data/xonotic-*-nexcompat.pk3
  15         Xonotic/data/xonotic-*-data-low.pk3
  16         Xonotic/data/xonotic-*-maps-low.pk3
  17         Xonotic/data/xonotic-*-music-low.pk3
  18 "
  19
  20 makepatchname()
  21 {
  22         wildcard=$1
  23         fromname=$2
  24         toname=$3
  25         prefix=${wildcard%%\**}
  26         suffix=${wildcard#*\*}
  27         fromversion=${fromname#$prefix}
  28         fromversion=${fromversion%$suffix}
  29         toversion=${toname#$prefix}
  30         toversion=${toversion%$suffix}
  31         echo "$prefix$fromversion"patch"$toversion$suffix"
  32 }
  33
  34 zipdiff -f "$from" -t "$to" -o "$output" -x "$excludes"
  35
  36 tempdir=`mktemp -d -t zipdiff.XXXXXX`
  37 cd "$tempdir"
  38
  39 for x in $excludes; do
  40         mkdir a b c
  41         (cd a && unzip "$from" "$x")
  42         fromname=`find a/ -type f`; fromname=${fromname#a/}
  43         (cd b && unzip "$to" "$x")
  44         toname=`find b/ -type f`; toname=${toname#b/}
  45         patchname=`makepatchname "$x" "$fromname" "$toname"`
  46         patchdir="c/$patchname"; patchdir=${patchdir%/*}
  47         mkdir -p "$patchdir"
  48         zipdiff -f a/"$fromname" -t b/"$toname" -o c/"$patchname"
  49         if [ -f c/"$patchname" ]; then
  50                 (cd c && zip -0r "$output" "$patchname")
  51         fi
  52         rm -rf a b c
  53 done
  54
  55 rm -rf "$tempdir"