sitevarscheck.in 2.64 KB
Newer Older
1 2
#!/usr/bin/perl -w
#
3
# Copyright (c) 2000-2011 University of Utah and the Flux Group.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
23 24 25 26 27 28 29 30 31 32 33 34
#
use strict;

#
# sitevarscheck - Make sure that the site variables in the currently-running
# database match the ones in the checked-out source.
# Exits with value 1 if the two
# differ, 0 if they do not, and -1 if some error (such as the mysql server is
# not running, or the database does not exist) prevents us from telling if
# they differ or not
#

35 36 37 38 39
#
# Function prototypes
#
sub fatal(@);

40 41 42 43 44 45 46 47 48
#
# Configure variables
#
my $testbed_srcdir = "@top_srcdir@";
my $DBNAME         = "@TBDBNAME@";

my $master_sitevars = "$testbed_srcdir/sql/sitevars-create.sql";
my $sitevarsdiff = "$testbed_srcdir/utils/sitevarsdiff";

49
my $isvers5   = system("mysql -V | egrep -q -s 'Distrib 5.'") == 0;
50 51
my $extraopts = ($isvers5 ? "--skip-opt" : "");

52 53 54 55
#
# XXX: Requires that mysqldump be in caller's $PATH - probably an OK
# assumption, but maybe not always
#
56
my $mysqldump = "mysqldump $extraopts -t $DBNAME sitevariables";
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

#
# Make sure we can write the temporary file
#
my $db_sitevars = "/tmp/sitevarscheck.$$";
open(SITEVARSFILE,">$db_sitevars") or
    fatal("Unable to write to temporary file $db_sitevars: $!\n");
close(SITEVARSFILE);

#
# Stick the output of mysqldump into a file
#
system "$mysqldump 2> /dev/null > $db_sitevars";

#
# ... and compare it to the sitevars from the source
#
my $diff = (system("$sitevarsdiff $db_sitevars $master_sitevars") >> 8);
unlink($db_sitevars);

if ($diff) {
78 79 80
    print "*** Your sitevariables are out of date with $master_sitevars.\n";
    print "    As a safety measure, you will not be able to install until\n";
    print "    this is resolved.\n";
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
    exit(1);
} else {
    exit(0);
}

sub fatal(@) {

    # Offset the text with a few blank lines, so it doesn't get lost in the
    # make messages
    warn "\n\n";
    warn "*** sitevarscheck - Unable to check database sitevars:\n";
    warn @_;
    warn "\n\n";

    exit(-1);

}