contrib/stg-mdiff

   1 #!/bin/bash
   2 set -e
   3
   4 # stg-mdiff - display meta-diffs, ie. diffs of diffs
   5
   6 # Main use: show evolutions of a patch.
   7 # eg. stg-mdiff foo@stable foo
   8 #     stg-mdiff foo 012345567ABCD # sha1 for "foo" as integrated upstream
   9
  10 # Copyright (c) 2007 Yann Dirson <ydirson@altern.org>
  11 # Subject to the GNU GPL, version 2.
  12
  13 usage()
  14 {
  15     echo "Usage: $(basename $0) <from1>..[<to1>]|<patch1> <from2>..[<to2>]|<patch2>"
  16     exit 1
  17 }
  18
  19 if [ "$#" != 2 ]; then
  20     usage
  21 fi
  22
  23 case "$1" in
  24 *..*) cmd1="stg diff" ;;
  25 *)    cmd1="stg show" ;;
  26 esac
  27 case "$2" in
  28 *..*) cmd2="stg diff" ;;
  29 *)    cmd2="stg show" ;;
  30 esac
  31
  32 colordiff -u <($cmd1 "$1") <($cmd2 "$2") | less -RFX