| 1 | #! /bin/sh |
| 2 | # |
| 3 | # Enhanced sccs diff utility for use with vc mode. |
| 4 | # This version is more compatible with rcsdiff(1). |
| 5 | # |
| 6 | # Copyright (C) 1992, 1993, 1995, 1997, 2001, 2002, 2003, 2004, |
| 7 | # 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| 8 | # |
| 9 | # This file is part of GNU Emacs. |
| 10 | # |
| 11 | # GNU Emacs is free software; you can redistribute it and/or modify |
| 12 | # it under the terms of the GNU General Public License as published by |
| 13 | # the Free Software Foundation; either version 3, or (at your option) |
| 14 | # any later version. |
| 15 | # |
| 16 | # GNU Emacs is distributed in the hope that it will be useful, |
| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | # GNU General Public License for more details. |
| 20 | # |
| 21 | # You should have received a copy of the GNU General Public License |
| 22 | # along with GNU Emacs; see the file COPYING. If not, write to the |
| 23 | # Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 24 | # Boston, MA 02110-1301, USA. |
| 25 | # |
| 26 | |
| 27 | DIFF="diff" |
| 28 | usage="$0: Usage: vcdiff [--brief] [-q] [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..." |
| 29 | |
| 30 | PATH=$PATH:/usr/ccs/bin:/usr/sccs:/usr/xpg4/bin # common SCCS hangouts |
| 31 | |
| 32 | echo="echo" |
| 33 | sid1= sid2= |
| 34 | |
| 35 | for f |
| 36 | do |
| 37 | case $f in |
| 38 | -*) |
| 39 | case $f in |
| 40 | --brief) |
| 41 | DIFF=cmp;; |
| 42 | -q) |
| 43 | echo=:;; |
| 44 | -r?*) |
| 45 | case $sid1 in |
| 46 | '') |
| 47 | sid1=$f |
| 48 | ;; |
| 49 | *) |
| 50 | case $sid2 in |
| 51 | ?*) echo "$usage" >&2; exit 2 ;; |
| 52 | esac |
| 53 | sid2=$f |
| 54 | ;; |
| 55 | esac |
| 56 | ;; |
| 57 | *) |
| 58 | options="$options $f" |
| 59 | ;; |
| 60 | esac |
| 61 | shift |
| 62 | ;; |
| 63 | *) |
| 64 | break |
| 65 | ;; |
| 66 | esac |
| 67 | done |
| 68 | |
| 69 | case $# in |
| 70 | 0) |
| 71 | echo "$usage" >&2 |
| 72 | exit 2 |
| 73 | esac |
| 74 | |
| 75 | |
| 76 | rev1= rev2= status=0 |
| 77 | trap 'status=2; exit' 1 2 13 15 |
| 78 | trap 'rm -f $rev1 $rev2 || status=2; exit $status' 0 |
| 79 | |
| 80 | for f |
| 81 | do |
| 82 | s=2 |
| 83 | |
| 84 | case $f in |
| 85 | s.* | */s.*) |
| 86 | if |
| 87 | rev1=/tmp/geta$$ |
| 88 | get -s -p -k $sid1 "$f" > $rev1 && |
| 89 | case $sid2 in |
| 90 | '') |
| 91 | workfile=`expr " /$f" : '.*/s.\(.*\)'` |
| 92 | ;; |
| 93 | *) |
| 94 | rev2=/tmp/getb$$ |
| 95 | get -s -p -k $sid2 "$f" > $rev2 |
| 96 | workfile=$rev2 |
| 97 | esac |
| 98 | then |
| 99 | $echo $DIFF $options $rev1 $workfile >&2 |
| 100 | $DIFF $options $rev1 $workfile |
| 101 | s=$? |
| 102 | fi |
| 103 | ;; |
| 104 | *) |
| 105 | echo "$0: $f is not an SCCS file" >&2 |
| 106 | esac |
| 107 | |
| 108 | if test $status -lt $s |
| 109 | then status=$s |
| 110 | fi |
| 111 | done |
| 112 | |
| 113 | # arch-tag: 4344ba3a-bcbe-4f77-971c-f43c1606953a |