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#!/usr/bin/php
<?php
/*
 Use this script to generate bundled provides, e.g.:
 ./composer.prov vendor/composer/installed.php

 Copyright (C) 2024 Remi Collet <remi@fedoraproject.org>.

 SPDX-3.0-License-Identifier: GPL-2.0-or-later

 This program is free software.
 For more information on the license, see COPYING or
 <https://www.gnu.org/licenses/gpl-2.0.en.html>.
 For more information on free software, see
 <https://www.gnu.org/philosophy/free-sw.en.html>.
*/

// Check if composer "pretty_version" is usable in RPM
function isValid(Array $package) {
	if (!isset($package['pretty_version'])
		|| empty($package['pretty_version'])
		|| strpos($package['pretty_version'], '-')
	) {
		return false;
	}
	return true;
}

// Clean"pretty_version"
function getVersion(Array $package) {
	return ltrim($package['pretty_version'], 'v');
}

// Parse an installed.php file
function run($file) {
	fputs(STDERR, "Search bundled libraries installed, parsing $file\n");
	$installed = include $file;
	$main = false;
	if (isset($installed['root']['name']) 
		&& isValid($installed['root'])) {

		$main = $installed['root']['name'];
        printf("php-composer(%s) = %s\n", $installed['root']['name'], getVersion($installed['root']));
	}
	if (isset($installed['versions'])) foreach($installed['versions'] as $name => $v) {
		if ($name !== $main && isValid($v)) {
			printf("bundled(php-composer(%s)) = %s\n", $name, getVersion($v));
		}
	}
}

// From command line argument, manual usage
if (isset($_SERVER['argv'][1])) {
	run($_SERVER['argv'][1]);

// From input lines, rpmbuild usage
} else while($f = fgets(STDIN)) {
	run(trim($f));
}