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