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#!/usr/bin/perl
# $Id: youri-check.in 1699 2006-10-16 11:33:58Z warly $
=head1 NAME
youri-check - package check agent
=head1 VERSION
Version 1.0
=head1 SYNOPSIS
youri-check [options] <mode>
Options:
--config <file> use file <file> as config file
--skip-media <media> skip media <media>
--skip-plugin <plugin> skip plugin <plugin>
--parallel parallel run
--verbose verbose run
--test test run
--help print this help message
=head1 DESCRIPTION
B<youri-check> allows to check packages in a repository.
In input mode, all medias defined in configuration are passed to a list of
input plugins, each of them storing their result in a persistent resultset. In
output mode, this resultset is passed to a list of output plugins, each of them
producing arbitrary effects.
=head1 OPTIONS
=over
=item B<--config> <file>
Use given file as configuration, instead of normal one.
=item B<--skip-media> <media>
Skip media with given identity.
=item B<--skip-plugin> <plugin>
Skip plugin with given identity.
=item B<--parallel>
Run all plugins parallelously
=item B<--verbose>
Produce more verbose output (can be used more than once)
=item B<--test>
Don't perform any modification.
=item B<--help>
Print a brief help message and exits.
=back
=head1 CONFIGURATION
Configuration is read from the first file found among:
=over
=item * the one specified by B<--config> option on command-line
=item * $HOME/.youri/check.conf
=item * @sysconfdir@/youri/check.conf
=back
All additional configuration files specified by B<includes> directive are then
processed. Then command line options. Any directive overrides prior definition.
=over
=item B<includes> I<files>
Uses space-separated list I<files> as a list of additional configuration files.
=item B<resolver> I<id>
Declare a maintainer resolver object with identity I<id>.
=item B<preferences> I<id>
Declare a maintainer preferences object with identity I<id>.
=item B<resultset> I<id>
Declare a resultset object with identity I<id>.
=item B<medias> I<ids>
Declares a list of media objects with identity taken in space-separated list
I<ids>.
=item B<inputs> I<ids>
Declares a list of input plugin objects with identity taken in space-separated
list I<ids>.
=item B<outputs> I<ids>
Declares a list of output plugin objects with identity taken in space-separated
list I<ids>.
=back
Each object declared in configuration must be fully defined later, using a
configuration section, starting with bracketed object identity, followed by at
least a class directive, then any number of additional object-specific
directives.
Example:
objects = foo
[foo]
class = Foo::Bar
key1 = value1
key2 = value2
=head1 SEE ALSO
Youri::Config, for configuration file format.
Each used plugin man page, for available options.
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2002-2006, YOURI project
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
use strict;
use warnings;
use Youri::Config;
use Youri::Utils;
use Pod::Usage;
use Net::Config qw/%NetConfig/;
use DateTime;
my $config = Youri::Config->new(
command_spec => [
'config=s',
'skip-plugin=s@',
'skip-media=s@',
'parallel!',
'help|h!',
'test|t!',
'verbose|v!'
],
file_spec => [
'includes=s',
'resolver=s',
'preferences=s',
'resultset=s',
'medias=s',
'inputs=s',
'outputs=s'
],
directories => [ '@sysconfdir@', "$ENV{HOME}/.youri" ],
file_name => 'check.conf',
caller => $0,
);
pod2usage(
-verbose => 0,
-message => "No mode specified, aborting\n"
) unless @ARGV;
my $mode = $ARGV[0];
# convenient global flags
my $test = $config->get('test');
my $verbose = $config->get('verbose');
# libnet configuration
my %netconfig = $config->get_section('netconfig');
$NetConfig{$_} = $netconfig{$_} foreach keys %netconfig;
# resultset creation
my $resultset_id = $config->get('resultset');
die "No resultset defined" unless $resultset_id;
report("Creating resultset $resultset_id");
my $resultset = create_instance(
'Youri::Check::Resultset',
test => $test,
verbose => $verbose > 0 ? $verbose - 1 : 0,
$config->get_section($resultset_id)
);
my $children;
my %skip_plugins = map { $_ => 1 } @{$config->get('skip-plugin')};
if ($mode eq 'input') {
# additional objects
my $resolver;
my $resolver_id = $config->get('resolver');
if ($resolver_id) {
report("Creating maintainer resolver $resolver_id");
eval {
$resolver = create_instance(
'Youri::Check::Maintainer::Resolver',
test => $test,
verbose => $verbose > 1 ? $verbose - 2 : 0,
$config->get_section($resolver_id)
);
};
print STDERR "Failed to create maintainer resolver $resolver_id: $@\n" if $@;
}
my $preferences;
my $preferences_id = $config->get('preferences');
if ($preferences_id) {
report("Creating maintainer preferences $preferences_id");
eval {
$preferences = create_instance(
'Youri::Check::Maintainer::Preferences',
test => $test,
verbose => $verbose > 1 ? $verbose - 2 : 0,
$config->get_section($preferences_id)
);
};
print STDERR "Failed to create maintainer preferences $preferences_id: $@\n" if $@;
}
my @medias;
my %skip_medias = map { $_ => 1 } @{$config->get('skip-media')};
foreach my $id (split(/\s+/, $config->get('medias'))) {
next if $skip_medias{$id};
report("Creating media $id");
eval {
push(
@medias,
create_instance(
'Youri::Media',
id => $id,
test => $test,
verbose => $verbose > 0 ? $verbose - 1 : 0,
$config->get_section($id)
)
);
};
print STDERR "Failed to create media $id: $@\n" if $@;
}
# prepare resultset
$resultset->reset();
$resultset->set_resolver($resolver);
foreach my $id (split(/\s+/, $config->get('inputs'))) {
next if $skip_plugins{$id};
report("Creating input $id");
my $input;
eval {
$input = create_instance(
'Youri::Check::Input',
id => $id,
test => $test,
verbose => $verbose > 0 ? $verbose - 1 : 0,
resolver => $resolver,
preferences => $preferences,
$config->get_section($id)
);
};
if ($@) {
print STDERR "Failed to create input $id: $@\n";
} else {
if ($config->get('parallel')) {
# fork
my $pid = fork;
die "Can't fork: $!" unless defined $pid;
if ($pid) {
# parent process
$children++;
next;
}
}
eval {
$input->prepare(@medias);
};
if ($@) {
print STDERR "Failed to prepare input $id: $@\n";
} else {
# clone resultset in child process
$resultset = $config->get('parallel') ?
$resultset->clone() :
$resultset;
foreach my $media (@medias) {
next if $media->skip_input($id);
my $media_id = $media->get_id();
report("running input $id on media $media_id");
eval {
$input->run($media, $resultset);
};
if ($@) {
print STDERR "Failed to run input $id on media $media_id: $@\n";
}
}
}
if ($config->get('parallel')) {
# child process
exit;
}
}
}
} elsif ($mode eq 'output') {
foreach my $id (split(/\s+/, $config->get('outputs'))) {
next if $skip_plugins{$id};
report("Creating output $id");
my $output;
eval {
$output = create_instance(
'Youri::Check::Output',
id => $id,
test => $test,
verbose => $verbose > 0 ? $verbose - 1 : 0,
config => $config,
$config->get_section($id)
);
};
if ($@) {
print STDERR "Failed to create output $id: $@\n";
} else {
if ($config->get('parallel')) {
# fork
my $pid = fork;
die "Can't fork: $!" unless defined $pid;
if ($pid) {
# parent process
$children++;
next;
}
}
# clone resultset in child process
$resultset = $config->get('parallel') ?
$resultset->clone() :
$resultset;
report("running output $id");
eval {
$output->run($resultset);
};
if ($@) {
print STDERR "Failed to run output $id: $@\n";
}
if ($config->get('parallel')) {
# child process
exit;
}
}
}
} else {
die "Invalid mode $mode";
}
# wait for all forked processus termination
while ($children) {
wait;
$children--;
}
sub report {
my ($message) = @_;
print DateTime->now()->strftime('[%H:%M:%S] ')
if $verbose > 1;
print "$message\n"
if $verbose > 0;
}
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