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pbot/lib/PBot/Core/Commands/Version.pm
2021-07-27 22:38:19 -07:00

76 lines
2.4 KiB
Perl

# File: Version.pm
#
# Purpose: The `version` PBot command. It can check against GitHub or a
# user-defined URL for PBot's VERSION.pm file.
# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Core::Commands::Version;
use parent 'PBot::Core::Class';
use PBot::Imports;
use LWP::UserAgent;
sub initialize {
my ($self, %conf) = @_;
# register `version` command
$self->{pbot}->{commands}->register(sub { $self->cmd_version(@_) }, 'version');
# initialize last_check version data using compile-time constants
$self->{last_check} = {
timestamp => 0,
revision => PBot::VERSION::BUILD_REVISION,
date => PBot::VERSION::BUILD_DATE,
};
}
sub cmd_version {
my ($self, $context) = @_;
my $ratelimit = $self->{pbot}->{registry}->get_value('version', 'check_limit') // 300;
if (time - $self->{last_check}->{timestamp} >= $ratelimit) {
$self->{last_check}->{timestamp} = time;
my $url = $self->{pbot}->{registry}->get_value('version', 'check_url') // 'https://raw.githubusercontent.com/pragma-/pbot/master/lib/PBot/VERSION.pm';
$self->{pbot}->{logger}->log("Checking $url for new version...\n");
my $ua = LWP::UserAgent->new(timeout => 10);
my $response = $ua->get($url);
if (not $response->is_success) {
return "Unable to get version information: " . $response->status_line;
}
my $text = $response->decoded_content;
my ($revision, $date) = $text =~ m/^\s+BUILD_REVISION => (\d+).*^\s+BUILD_DATE\s+=> "([^"]+)"/ms;
if (not defined $revision or not defined $date) {
return "Unable to get version information: data did not match expected format";
}
$self->{last_check} = { timestamp => time, revision => $revision, date => $date };
}
my $target_nick;
if (length $context->{arguments}) {
$target_nick = $self->{pbot}->{nicklist}->is_present_similar($context->{from}, $context->{arguments});
}
my $result = '/say ';
$result .= "$target_nick: " if $target_nick;
$result .= $self->{pbot}->{version}->version;
if ($self->{last_check}->{revision} > $self->{pbot}->{version}->revision) {
$result .= "; new version available: $self->{last_check}->{revision} $self->{last_check}->{date}!";
}
return $result;
}
1;