4 # stg-mdiff - display meta-diffs, ie. diffs of diffs
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
10 # Copyright (c) 2007 Yann Dirson <ydirson@altern.org>
11 # Subject to the GNU GPL, version 2.
15 echo "Usage: [-o <diff-flags>] [-O <gitdiff-flags>] $(basename $0) <from1>..[<to1>]|<patch1> <from2>..[<to2>]|<patch2>"
21 while [ "$#" -gt 0 ]; do
23 -o) diffopts="$2"; shift ;;
24 -O) subdiffopts="-O $2"; shift ;;
31 if [ "$#" != 2 ]; then
35 if [ -z "$diffopts" ]; then
40 *..*) cmd1="stg diff $subdiffopts -r" ;;
41 *) cmd1="stg show $subdiffopts" ;;
44 *..*) cmd2="stg diff $subdiffopts -r" ;;
45 *) cmd2="stg show $subdiffopts" ;;
49 <($cmd1 "$1") <($cmd2 "$2") | less -RFX