make-diff-patch.sh

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