make-diff-patch.sh

   1 #!/bin/sh
   2 # Create .patch based on $1 for $2
   3 src=$1
   4 dst=$2
   5 ext=.tar.xz
   6
   7 unpack() {
   8         case "$1" in
   9                 *.tgz|*.tar.[Zz]|*.tar.gz) tar zx${verbose:+v}f "$1" ;;
  10                 *.tar) tar x${verbose:+v}f "$1" ;;
  11                 *.tbz2|*.tbz|*.tar.bz2) tar jx${verbose:+v}f "$1" ;;
  12                 *.tar.xz) xz -dc "$1" | tar x${verbose:+v} ;;
  13                 *.tar) tar x${verbose:+v}f "$1" ;;
  14                 *)
  15                          echo >&2 "Don't know how to unpack $1"
  16                          return 1
  17                 ;;
  18         esac
  19 }
  20
  21 # unpack all sources in commandline
  22 for a in "$@"; do
  23         unpack "$a"
  24 done
  25
  26 set -e
  27
  28 srcdir=$(basename $src $ext)
  29 dstdir=$(basename $dst $ext)
  30 patch=$dstdir.patch
  31
  32 test -d $srcdir || unpack $src
  33 test -d $dstdir || unpack $dst
  34 if diff -Nur $srcdir $dstdir > $patch; then
  35         echo "No diffs!"
  36 else
  37         echo "Patch created"
  38         ls -lh $patch
  39         diffstat $patch | tee $patch.diff
  40         cat $patch.diff $patch | xz -9 > $patch.xz
  41 fi
  42
  43 rm -rf $dstdir $srcdir