misc/tools/xzipdiff

   1 #!/bin/sh
   2
   3 set -e
   4
   5 from=$1
   6 to=$2
   7 output=$3
   8 case "$from" in /*) ;; *) from=`pwd`/$from ;; esac
   9 case "$to" in /*) ;; *) to=`pwd`/$to ;; esac
  10 case "$output" in /*) ;; *) output=`pwd`/$output ;; esac
  11
  12 excludes="
  13         Xonotic/data/xonotic-*-data.pk3
  14         Xonotic/data/xonotic-*-maps.pk3
  15         Xonotic/data/xonotic-*-music.pk3
  16         Xonotic/data/xonotic-*-nexcompat.pk3
  17         Xonotic/data/xonotic-*-data-low.pk3
  18         Xonotic/data/xonotic-*-maps-low.pk3
  19         Xonotic/data/xonotic-*-music-low.pk3
  20         Xonotic/data/font-nimbussansl-*.pk3
  21         Xonotic/data/font-unifont-*.pk3
  22         Xonotic/data/font-xolonium-*.pk3
  23 "
  24
  25 makepatchname()
  26 {
  27         wildcard=$1
  28         fromname=$2
  29         toname=$3
  30         prefix=${wildcard%%\**}
  31         suffix=${wildcard#*\*}
  32         fromversion=${fromname#$prefix}
  33         fromversion=${fromversion%$suffix}
  34         toversion=${toname#$prefix}
  35         toversion=${toversion%$suffix}
  36         echo "$prefix$fromversion"patch"$toversion$suffix"
  37 }
  38
  39 zipdiff -f "$from" -t "$to" -o "$output" -x "$excludes"
  40 # or maybe just include ALL not excluded files from $to in $output?
  41
  42 tempdir=`mktemp -d -t zipdiff.XXXXXX`
  43 cd "$tempdir"
  44
  45 for x in $excludes; do
  46         mkdir a b c
  47         (cd a && unzip "$from" "$x")
  48         fromname=`find a/ -type f`; fromname=${fromname#a/}
  49         (cd b && unzip "$to" "$x")
  50         toname=`find b/ -type f`; toname=${toname#b/}
  51         patchname=`makepatchname "$x" "$fromname" "$toname"`
  52         patchdir="c/$patchname"; patchdir=${patchdir%/*}
  53         mkdir -p "$patchdir"
  54         zipdiff -f a/"$fromname" -t b/"$toname" -o c/"$patchname"
  55         if [ -f c/"$patchname" ]; then
  56                 (cd c && zip -0r "$output" "$patchname")
  57         fi
  58         rm -rf a b c
  59 done
  60
  61 rm -rf "$tempdir"