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86 lines
2.7 KiB
Perl
86 lines
2.7 KiB
Perl
# File: Updater.pm
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#
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# Purpose: Migrates data files from older versions to newer versions.
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#
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# Updates data/configration files to new locations/formats based
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# on versioning information. Ensures data/configuration files are in the
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# proper location and using the latest data structure.
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# SPDX-FileCopyrightText: 2020-2023 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Core::Updater;
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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($self, %conf) {
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$self->{data_dir} = $conf{data_dir};
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$self->{update_dir} = $conf{update_dir};
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}
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sub update($self) {
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$self->{pbot}->{logger}->log("Checking if update needed...\n");
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my $current_version = $self->get_current_version;
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my $last_update_version = $self->get_last_update_version;
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$self->{pbot}->{logger}->log("Current version: $current_version; last update version: $last_update_version\n");
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if ($last_update_version >= $current_version) {
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$self->{pbot}->{logger}->log("No update necessary.\n");
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return $self->put_last_update_version($current_version);
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}
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my @updates = $self->get_available_updates($last_update_version);
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if (not @updates ) {
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$self->{pbot}->{logger}->log("No updates available.\n");
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return $self->put_last_update_version($current_version);
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}
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foreach my $update (@updates) {
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$self->{pbot}->{logger}->log("Executing update script: $update\n");
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my $output = `$update "$self->{data_dir}" $current_version $last_update_version`;
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my $exit = $? >> 8;
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foreach my $line (split /\n/, $output) {
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$self->{pbot}->{logger}->log(" $line\n");
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}
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$self->{pbot}->{logger}->log("Update script completed " . ($exit ? "unsuccessfully (exit $exit)" : 'successfully') . "\n");
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return $exit if $exit != 0;
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}
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return $self->put_last_update_version($current_version);
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}
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sub get_available_updates($self, $last_update_version) {
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my @updates = sort glob "$self->{update_dir}/*.pl";
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return grep { my ($version) = split /_/, basename $_; $version > $last_update_version } @updates;
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}
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sub get_current_version {
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return PBot::VERSION::BUILD_REVISION;
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}
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sub get_last_update_version($self) {
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open(my $fh, '<', "$self->{data_dir}/last_update") or return 0;
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chomp(my $last_update = <$fh>);
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close $fh;
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return $last_update;
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}
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sub put_last_update_version($self, $version) {
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if (open(my $fh, '>', "$self->{data_dir}/last_update")) {
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print $fh "$version\n";
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close $fh;
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return 0;
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} else {
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$self->{pbot}->{logger}->log("Could not save last update version to $self->{data_dir}/last_update: $!\n");
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return 1;
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}
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}
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1;
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