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117 lines
3.0 KiB
Perl
117 lines
3.0 KiB
Perl
# File: Plugins.pm
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#
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# Purpose: Loads and manages external plugins.
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# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Core::Plugins;
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use parent 'PBot::Core::Class';
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use PBot::Imports;
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use File::Basename;
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sub initialize {
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my ($self, %conf) = @_;
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# loaded plugins
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$self->{plugins} = {};
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# autoload plugins listed in `$data_dir/plugins_autoload` file
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$self->autoload(%conf);
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}
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sub autoload {
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my ($self, %conf) = @_;
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return if $self->{pbot}->{registry}->get_value('plugins', 'noautoload');
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my $data_dir = $self->{pbot}->{registry}->get_value('general', 'data_dir');
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my $plugin_count = 0;
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my $fh;
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if (not open $fh, "<$data_dir/plugin_autoload") {
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$self->{pbot}->{logger}->log("Plugins: autoload: file $data_dir/plugin_autoload does not exist; skipping autoloading of Plugins\n");
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return;
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}
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chomp(my @plugins = <$fh>);
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close $fh;
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$self->{pbot}->{logger}->log("Loading plugins:\n");
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$conf{quiet} = 1;
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foreach my $plugin (sort @plugins) {
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# do not load plugins that begin with a comment
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next if $plugin =~ m/^\s*#/;
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next if not length $plugin;
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$plugin = basename $plugin;
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$plugin =~ s/.pm$//;
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$self->{pbot}->{logger}->log(" $plugin\n");
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if ($self->load($plugin, %conf)) {
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$plugin_count++;
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} else {
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die "Plugin $plugin failed to autoload. You may remove it from $data_dir/plugin_autoload.\n";
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}
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}
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$self->{pbot}->{logger}->log("$plugin_count plugin" . ($plugin_count == 1 ? '' : 's') . " loaded.\n");
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}
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sub load {
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my ($self, $plugin, %conf) = @_;
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$self->unload($plugin);
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return if $self->{pbot}->{registry}->get_value('plugins', 'disabled');
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my $module = "PBot/Plugin/$plugin.pm";
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$self->{pbot}->{refresher}->{refresher}->refresh_module($module);
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my $ret = eval {
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$self->{pbot}->{logger}->log("Loading $plugin\n") unless $conf{quiet};
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require "$module";
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my $class = "PBot::Plugin::$plugin";
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$self->{plugins}->{$plugin} = $class->new(pbot => $self->{pbot}, %conf);
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$self->{pbot}->{refresher}->{refresher}->update_cache($module);
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return 1;
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};
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if (my $exception = $@) {
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$self->{pbot}->{logger}->log("Error loading $plugin: $exception");
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return 0;
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}
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return $ret;
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}
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sub unload {
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my ($self, $plugin) = @_;
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if (exists $self->{plugins}->{$plugin}) {
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eval {
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$self->{plugins}->{$plugin}->unload;
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delete $self->{plugins}->{$plugin};
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};
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if (my $exception = $@) {
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$self->{pbot}->{logger}->log("Warning: got error unloading plugin $plugin: $exception");
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}
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my $module = "PBot/Plugin/$plugin.pm";
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$self->{pbot}->{refresher}->{refresher}->unload_module($module);
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$self->{pbot}->{logger}->log("Plugin $plugin unloaded.\n");
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return 1;
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} else {
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return 0;
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}
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}
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1;
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