function retrieve_args()
{
$opt = new Getopt([(new Option('h', 'help'))->setDescription('Prints this help'), (new Option('v', 'verbose'))->setDescription('Verbose output'), (new Option('f', 'file-title'))->setDescription('Use file name for title tag'), (new Option('x', 'sort-lex'))->setDescription('Sort files lexicographically'), (new Option('t', 'tree-dst'))->setDescription('Retain the tree structure of the source album at destination'), (new Option('p', 'drop-dst'))->setDescription('Do not create destination directory'), (new Option('r', 'reverse'))->setDescription('Copy files in reverse order (last file first)'), (new Option('e', 'file-type', Getopt::REQUIRED_ARGUMENT))->setDescription('Accept only audio files of the specified type'), (new Option('u', 'unified-name', Getopt::REQUIRED_ARGUMENT))->setDescription('Base name for everything but the "Artist" tag'), (new Option('b', 'album-num', Getopt::REQUIRED_ARGUMENT))->setDescription('Album number'), (new Option('a', 'artist-tag', Getopt::REQUIRED_ARGUMENT))->setDescription('"Artist" tag'), (new Option('g', 'album-tag', Getopt::REQUIRED_ARGUMENT))->setDescription('"Album" tag')]);
$opt->parse();
if ($opt->getOption('help')) {
print $opt->getHelpText();
exit(2);
}
if (count($opt->getOperands()) !== 2) {
print "Command line syntax: <src> and <dst> operands required.\n" . $opt->getHelpText();
exit(2);
}
if (!is_dir($opt->getOperand(0))) {
print "Source directory \"{$opt->getOperand(0)}\" is not there.\n";
exit(2);
}
if (!is_dir($opt->getOperand(1))) {
print "Destination path \"{$opt->getOperand(1)}\" is not there.\n";
exit(2);
}
return $opt;
}
/**
* The main logic block for dispatching the CLI to the implementation
* classes. Assuming it makes it all the way to the actual method cleanly,
* its return code will be propagated up. Otherwise, RuntimeExceptions exit
* 1 (user error), LogicExceptions exit 2 (programmer error), and everything
* else exits 3 (doom)
*
* @return int The intended exit status cide
*/
public function run()
{
$trie = self::getCommandTrie();
$class = Utilities::searchTrieFromArgv($trie, $this->argv);
$cmd = new $class();
$banner = $cmd->getBanner();
try {
$opt = new Getopt();
$opt->addOptions($cmd->getOptions());
$opt->addOptions(self::getDefaultOptions());
if ($banner) {
$opt->setBanner($banner . PHP_EOL);
}
$opt->parse(implode(' ', $this->argv));
} catch (\UnexpectedValueException $e) {
// Unexpected CLI arguments
$this->console->exception($e);
$this->console->writeLine($opt->getHelpText());
return 1;
} catch (\InvalidArgumentException $e) {
// Command is broken - most likely duplicated arguments
$this->console->exception($e);
return 2;
} catch (\Exception $e) {
// Catch-all,
$this->console->exception($e);
return 3;
}
// Unfortunately we can't easily do this earlier. Native getopt() is
// useless on all subcommands, and the class implementation screams
// about unexpected values.
$v = Utilities::parseVerbosity($opt['q'], $opt['v']);
$this->console->setVerbosity($v);
if ($opt['help']) {
return $this->showHelp($cmd, $opt->getHelpText());
}
if ($opt['version']) {
return $this->showVersion($cmd);
}
try {
return $cmd->setOutput($this->console)->setOperands($opt->getOperands())->setOptionValues($opt->getOptions())->execute();
} catch (\RuntimeException $e) {
$this->console->exception($e);
$this->console->writeLine($opt->getHelpText());
return 1;
} catch (\LogicException $e) {
$this->console->exception($e);
return 2;
} catch (\Exception $e) {
$this->console->exception($e);
return 3;
}
}