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-xolonium-*.pk3
  22 "
  23
  24 makepatchname()
  25 {
  26         wildcard=$1
  27         fromname=$2
  28         toname=$3
  29         prefix=${wildcard%%\**}
  30         suffix=${wildcard#*\*}
  31         fromversion=${fromname#$prefix}
  32         fromversion=${fromversion%$suffix}
  33         toversion=${toname#$prefix}
  34         toversion=${toversion%$suffix}
  35         echo "$prefix$fromversion"patch"$toversion$suffix"
  36 }
  37
  38 zipdiff -f "$from" -t "$to" -o "$output" -x "$excludes"
  39 # or maybe just include ALL not excluded files from $to in $output?
  40
  41 tempdir=`mktemp -d -t zipdiff.XXXXXX`
  42 cd "$tempdir"
  43
  44 for x in $excludes; do
  45         mkdir a b c
  46         (cd a && unzip "$from" "$x")
  47         fromname=`find a/ -type f`; fromname=${fromname#a/}
  48         (cd b && unzip "$to" "$x")
  49         toname=`find b/ -type f`; toname=${toname#b/}
  50         patchname=`makepatchname "$x" "$fromname" "$toname"`
  51         patchdir="c/$patchname"; patchdir=${patchdir%/*}
  52         mkdir -p "$patchdir"
  53         zipdiff -f a/"$fromname" -t b/"$toname" -o c/"$patchname"
  54         if [ -f c/"$patchname" ]; then
  55                 (cd c && zip -0r "$output" "$patchname")
  56         fi
  57         rm -rf a b c
  58 done
  59
  60 rm -rf "$tempdir"