/contrib/cvs/contrib/commit_prep.in

 1#! @PERL@ -T
 2# -*-Perl-*-
 3
 4# Copyright (C) 1994-2005 The Free Software Foundation, Inc.
 5
 6# This program is free software; you can redistribute it and/or modify
 7# it under the terms of the GNU General Public License as published by
 8# the Free Software Foundation; either version 2, or (at your option)
 9# any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16###############################################################################
17###############################################################################
18###############################################################################
19#
20# THIS SCRIPT IS PROBABLY BROKEN.  REMOVING THE -T SWITCH ON THE #! LINE ABOVE
21# WOULD FIX IT, BUT THIS IS INSECURE.  WE RECOMMEND FIXING THE ERRORS WHICH THE
22# -T SWITCH WILL CAUSE PERL TO REPORT BEFORE RUNNING THIS SCRIPT FROM A CVS
23# SERVER TRIGGER.  PLEASE SEND PATCHES CONTAINING THE CHANGES YOU FIND
24# NECESSARY TO RUN THIS SCRIPT WITH THE TAINT-CHECKING ENABLED BACK TO THE
25# <@PACKAGE_BUGREPORT@> MAILING LIST.
26#
27# For more on general Perl security and taint-checking, please try running the
28# `perldoc perlsec' command.
29#
30###############################################################################
31###############################################################################
32###############################################################################
33
34# Perl filter to handle pre-commit checking of files.  This program
35# records the last directory where commits will be taking place for
36# use by the log_accum.pl script.
37#
38# IMPORTANT: this script interacts with log_accum, they have to agree
39# on the tmpfile name to use.  See $LAST_FILE below.
40#
41# Contributed by David Hampton <hampton@cisco.com>
42# Stripped to minimum by Roy Fielding
43#
44############################################################
45$TMPDIR        = $ENV{'TMPDIR'} || '/tmp';
46$FILE_PREFIX   = '#cvs.';
47
48# If see a "-u $USER" argument, then destructively remove it from the
49# argument list, so $ARGV[0] will be the repository dir again, as it
50# used to be before we added the -u flag.
51if ($ARGV[0] eq '-u') {
52  shift @ARGV;
53  $CVS_USERNAME = shift (@ARGV);
54}
55
56# This needs to match the corresponding var in log_accum.pl, including
57# the appending of the pgrp and username suffixes (see uses of this
58# var farther down).
59$LAST_FILE = "$TMPDIR/${FILE_PREFIX}lastdir";
60
61sub write_line {
62    my ($filename, $line) = @_;
63
64# A check of some kind is needed here, but the rules aren't apparent
65# at the moment:
66
67#    foreach($filename, $line){	
68#        $_ =~ m#^([-\@\w.\#]+)$#;
69#        $_ = $1;
70#    }
71
72    open(FILE, ">$filename") || die("Cannot open $filename: $!\n");
73    print(FILE $line, "\n");
74    close(FILE);
75}
76
77#
78# Record this directory as the last one checked.  This will be used
79# by the log_accumulate script to determine when it is processing
80# the final directory of a multi-directory commit.
81#
82$id = getpgrp();
83
84&write_line("$LAST_FILE.$id.$CVS_USERNAME", $ARGV[0]);
85
86exit(0);