/**
* Process a queue of extensions and return their extracted data
*
* @param array $queue keys are filenames, values are ignored
* @return array extracted info
* @throws Exception
*/
public function readFromQueue(array $queue)
{
global $wgVersion;
$autoloadClasses = array();
$processor = new ExtensionProcessor();
$incompatible = array();
$coreVersionParser = new CoreVersionChecker($wgVersion);
foreach ($queue as $path => $mtime) {
$json = file_get_contents($path);
if ($json === false) {
throw new Exception("Unable to read {$path}, does it exist?");
}
$info = json_decode($json, true);
if (!is_array($info)) {
throw new Exception("{$path} is not a valid JSON file.");
}
if (!isset($info['manifest_version'])) {
// For backwards-compatability, assume a version of 1
$info['manifest_version'] = 1;
}
$version = $info['manifest_version'];
if ($version < self::OLDEST_MANIFEST_VERSION || $version > self::MANIFEST_VERSION) {
throw new Exception("{$path}: unsupported manifest_version: {$version}");
}
$autoload = $this->processAutoLoader(dirname($path), $info);
// Set up the autoloader now so custom processors will work
$GLOBALS['wgAutoloadClasses'] += $autoload;
$autoloadClasses += $autoload;
// Check any constraints against MediaWiki core
$requires = $processor->getRequirements($info);
if (isset($requires[self::MEDIAWIKI_CORE]) && !$coreVersionParser->check($requires[self::MEDIAWIKI_CORE])) {
// Doesn't match, mark it as incompatible.
$incompatible[] = "{$info['name']} is not compatible with the current " . "MediaWiki core (version {$wgVersion}), it requires: " . $requires[self::MEDIAWIKI_CORE] . '.';
continue;
}
// Compatible, read and extract info
$processor->extractInfo($path, $info, $version);
}
if ($incompatible) {
if (count($incompatible) === 1) {
throw new Exception($incompatible[0]);
} else {
throw new Exception(implode("\n", $incompatible));
}
}
$data = $processor->getExtractedInfo();
// Need to set this so we can += to it later
$data['globals']['wgAutoloadClasses'] = array();
foreach ($data['credits'] as $credit) {
$data['globals']['wgExtensionCredits'][$credit['type']][] = $credit;
}
$data['globals']['wgExtensionCredits'][self::MERGE_STRATEGY] = 'array_merge_recursive';
$data['autoload'] = $autoloadClasses;
return $data;
}
/**
* @dataProvider provideCheck
*/
public function testCheck($coreVersion, $constraint, $expected)
{
$checker = new CoreVersionChecker($coreVersion);
$this->assertEquals($expected, $checker->check($constraint));
}