Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Linus Torvalds
   4# Copyright (c) 2005 Junio C Hamano
   5
   6rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit
   7flags=$(git-rev-parse --no-revs --flags --sq "$@")
   8files=$(git-rev-parse --no-revs --no-flags --sq "$@")
   9
  10: ${flags:="'-M' '-p'"}
  11
  12die () {
  13    echo >&2 "$*"
  14    exit 1
  15}
  16
  17# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
  18# obviously I mean 'git diff --cached -p HEAD' in that case.
  19case "$rev" in
  20'')
  21        case " $flags " in
  22        *" '--cached' "*)
  23                rev='HEAD '
  24                ;;
  25        esac
  26esac
  27
  28case "$rev" in
  29?*' '?*' '?*)
  30        echo >&2 "I don't understand"
  31        exit 1
  32        ;;
  33?*' '^?*)
  34        begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&
  35        end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit
  36        cmd="git-diff-tree $flags $begin $end -- $files"
  37        ;;
  38?*' '?*)
  39        cmd="git-diff-tree $flags $rev -- $files"
  40        ;;
  41?*' ')
  42        cmd="git-diff-index $flags $rev -- $files"
  43        ;;
  44'')
  45        cmd="git-diff-files $flags -- $files"
  46        ;;
  47*)
  48        die "I don't understand $*"
  49        ;;
  50esac
  51
  52eval "$cmd"