scripts/mkdiff

   1 #!/bin/sh
   2 # Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; as a special exception the author gives
   5 # unlimited permission to copy and/or distribute it, with or without
   6 # modifications, as long as this notice is preserved.
   7 #
   8 # This program is distributed in the hope that it will be useful, but
   9 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
  10 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11
  12 # Please note that this script is now maintained outside of GNUPG.
  13 # To get the most up to date version use
  14 # cvs -d :pserver:anoncvs@cvs.gnupg.org:/cvs/wk checkout misc-scripts/mkdiff
  15
  16 if [ $# != 1 ] ; then
  17     echo "usage: mkdiff package-name" >&2
  18     exit 1
  19 fi
  20
  21 pack="$1"
  22
  23 set -e
  24
  25 curr_ver=$(ls $pack-*.tar.gz 2>/dev/null | sed "s/^$pack-\(.*\)\.tar\.gz/\1/"\
  26            | sort -r -t '.' -n +0 -1 +1 -2 +2 | head -1 )
  27 if [ ! -f $pack-$curr_ver.tar.gz ]; then
  28     echo "mkdiff: no current version of package $pack found" >&2
  29     exit 1
  30 fi
  31 prev_ver=$(ls $pack-*.tar.gz 2>/dev/null | sed "s/^$pack-\(.*\)\.tar\.gz/\1/"\
  32            | sort -r -t '.' -n +0 -1 +1 -2 +2 | head -2 | tail -1 )
  33 if [ "$prev_ver" = "$curr_ver"  ]; then
  34     echo "mkdiff: no previous version of package $pack found" >&2
  35     exit 1
  36 fi
  37
  38 echo "Current  is: $pack-$curr_ver"
  39 echo "Previous is: $pack-$prev_ver"
  40
  41
  42 echo "Removing old directories"
  43 [ -d "$pack-$curr_ver" ] && rm -rf "$pack-$curr_ver"
  44 [ -d "$pack-$prev_ver" ] && rm -rf "$pack-$prev_ver"
  45
  46 echo "Unpacking previous and current tar"
  47 tar xzf "$pack-$curr_ver.tar.gz"
  48 rm -f $pack-${curr_ver}/po/*.gmo
  49 tar xzf "$pack-$prev_ver.tar.gz"
  50 rm -f $pack-${prev_ver}/po/*.gmo
  51
  52
  53 echo "Diffing"
  54 tmp_name="$pack-$prev_ver-$curr_ver.diff.tmp"
  55 diff_name="$pack-$prev_ver-$curr_ver.diff"
  56
  57 diff -urN "$pack-$prev_ver/" "$pack-$curr_ver/"  > $tmp_name || true
  58
  59 echo "Making patch file"
  60
  61 cat <<EOF > $diff_name
  62
  63 This is a patch file to create version $curr_ver from $prev_ver.
  64
  65 Please check the signature of this patch file:
  66
  67     zcat somepath/$pack-$prev_ver-$curr_ver.diff.gz | gpg --verify
  68
  69 Change to directory $pack-$prev_ver (or however you renamed it)
  70 and give this command:
  71
  72      zcat somepath/$pack-$prev_ver-$curr_ver.diff.gz | patch -p1
  73
  74 It is a good idea to rename your current directory to $pack-$curr_ver now.
  75
  76
  77
  78 Prereq: $prev_ver
  79
  80 EOF
  81
  82 sed -ne '/^diff.*VERSION/,/^+[0-9][0-9]*/ p' $tmp_name >> $diff_name
  83 echo  >> $diff_name
  84 sed -e '/^diff.*VERSION/,/^+[0-9][0-9]*/ d'  $tmp_name >> $diff_name
  85
  86 rm $tmp_name
  87
  88 echo "Signing and compressing patch file"
  89 gpg --clearsign --not-dash-escaped -u 57548DCD \
  90     < $diff_name | gzip --best > $diff_name.gz
  91 rm $diff_name
  92
  93 echo "Checking patch file"
  94 cd $pack-$prev_ver
  95 zcat ../$diff_name.gz | patch -s -p1
  96 rm $(find . -name "*.orig") 2>/dev/null || true
  97 cd ..
  98
  99 if ! diff -urN "$pack-$prev_ver/" "$pack-$curr_ver/" >/dev/null ; then
 100    echo "compare failed"
 101    exit 1
 102 fi
 103
 104 if ! zcat $diff_name.gz | gpg --batch --verify ; then
 105     exit 1
 106 fi
 107
 108
 109 echo "cleaning up"
 110
 111 rm -rf "$pack-$curr_ver"
 112 rm -rf "$pack-$prev_ver"
 113
 114 echo "Patch file $diff_name.gz is good."
 115