408 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			408 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace nur\cli;
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use Exception;
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use nur\b\ExitError;
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use nur\b\ValueException;
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use nur\config;
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use nur\config\ArrayConfig;
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use nur\msg;
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use nur\os;
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use nur\path;
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use nur\sery\app\launcher;
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use nur\sery\app\RunFile;
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use nur\sery\cl;
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use nur\sery\app\app;
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use nur\sery\output\log as nlog;
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use nur\sery\output\msg as nmsg;
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use nur\sery\output\console as nconsole;
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use nur\sery\output\std\StdMessenger;
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/**
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 * Class Application: application de base
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 */
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abstract class Application {
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  protected static ?array $internal_use_app_params = null;
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  static function internal_use_set_app_params($params) {
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    self::$internal_use_app_params = $params;
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  }
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  /** @var string répertoire du projet (celui qui contient composer.json */
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  const PROJDIR = null;
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  /**
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   * @var array répertoires vendor exprimés relativement à PROJDIR
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   */
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  const VENDOR = null;
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  /**
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   * @var string code du projet, utilisé pour dériver le noms de certains des
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   * paramètres extraits de l'environnement, e.g XXX_DATADIR si le projet a pour
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   * code xxx
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   *
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   * si non définie, cette valeur est calculée automatiquement à partir de
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   * self::PROJDIR sans le suffixe "-app"
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   */
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  const APPCODE = null;
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  /**
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   * @var string code de l'application, utilisé pour inférer le nom de certains
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   * fichiers spécifiques à l'application.
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   *
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   * si non définie, cette valeur est calculée automatiquement à partir de
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   * static::class
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   */
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  const NAME = null;
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  /** @var string description courte de l'application */
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  const TITLE = null;
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  const DATADIR = null;
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  const ETCDIR = null;
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  const VARDIR = null;
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  const LOGDIR = null;
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  /** @var bool faut-il activer automatiquement l'écriture dans les logs */
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  const USE_LOGFILE = null;
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  /** @var bool faut-il maintenir un fichier de suivi du process? */
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  const USE_RUNFILE = false;
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  /**
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   * @var bool faut-il empêcher deux instances de cette application de se lancer
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   * en même temps?
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   *
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   * nécessite USE_RUNFILE==true
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   */
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  const USE_RUNLOCK = false;
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  /** @var bool faut-il installer le gestionnaire de signaux? */
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  const USE_SIGNAL_HANDLER = false;
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  protected static function _app_init(): void {
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    config::set_fact(config::FACT_CLI_APP);
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    # avant que l'application soit configurée, configurer le mode debug
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    msg::set_messenger_class(Console::class);
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    msg::get()->setParametrableParams([
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      # En ligne de commande, on peut afficher les messages loggués
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      "display_log" => true,
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    ]);
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    msg::get()->setLevels(msg::DEBUG_LEVELS, msg::DEBUG_LEVELS, msg::DEBUG);
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    # si un fichier nommé .default-profile-devel existe dans le répertoire de
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    # l'application ou du projet, alors le profil par défaut est devel
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    global $argv;
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    $homedir = os::homedir();
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    $projdir = path::abspath(path::dirname($argv[0]));
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    while (true) {
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      if (file_exists("$projdir/.default-profile-devel")) {
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        config::set_default_profile(config::DEVEL);
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        break;
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      }
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      # s'arrêter au répertoire du projet, ou à $HOMEDIR, ou à la racine
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      if (file_exists("$projdir/composer.json")) break;
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      if ($projdir == $homedir) break;
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      $projdir = path::dirname($projdir);
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      if ($projdir == "/") break;
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    }
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    app::init(static::class, self::$internal_use_app_params);
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    nmsg::set_messenger(new StdMessenger([
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      "min_level" => nmsg::DEBUG,
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    ]));
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  }
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  protected static function _app_configure(Application $app): void {
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    config::configure(config::CONFIGURE_INITIAL_ONLY);
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    # revenir à la configuration par défaut une fois que la configuration
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    # initiale est faite
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    msg::get()->setLevels(msg::PRINT_LEVELS, msg::LOG_LEVELS, msg::TYPE_LEVELS);
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    $msgs = ["console" => new StdMessenger([
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      "min_level" => nmsg::NORMAL,
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    ])];
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    if (static::USE_LOGFILE) {
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      $msgs["log"] = new StdMessenger([
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        "output" => app::get()->getLogfile(),
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        "min_level" => nmsg::MINOR,
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        "add_date" => true,
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      ]);
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    }
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    nmsg::init($msgs);
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    $app->parseArgs();
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    config::configure();
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  }
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  protected static function _app_main(Application $app): void {
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    $retcode = $app->main();
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    if (is_int($retcode)) exit($retcode);
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    elseif (is_bool($retcode)) exit($retcode? 0: 1);
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    elseif ($retcode !== null) exit(strval($retcode));
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  }
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  static function run(?Application $app=null): void {
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    $unlock = false;
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    $stop = false;
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    $shutdownHandler = function () use (&$unlock, &$stop) {
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      if ($unlock) {
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        app::get()->getRunfile()->release();
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        $unlock = false;
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      }
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      if ($stop) {
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        app::get()->getRunfile()->wfStop();
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        $stop = false;
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      }
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    };
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    register_shutdown_function($shutdownHandler);
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    if (static::USE_SIGNAL_HANDLER) {
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      $signalHandler = function(int $signo, $siginfo) {
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        self::exit(255);
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      };
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      pcntl_signal(SIGHUP, $signalHandler);
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      pcntl_signal(SIGINT, $signalHandler);
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      pcntl_signal(SIGQUIT, $signalHandler);
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      pcntl_signal(SIGTERM, $signalHandler);
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    }
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    try {
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      static::_app_init();
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      if (static::USE_RUNFILE) {
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        $runfile = app::get()->getRunfile();
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        global $argc, $argv;
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        if ($argc === 2 && ($argv[1] === "--Application-release-runlock" || $argv[1] === "--ARL")) {
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          $runfile->release();
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          exit(0);
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        }
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        $useRunlock = static::USE_RUNLOCK;
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        if ($useRunlock && $runfile->warnIfLocked()) {
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          exit(1);
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        }
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        $runfile->wfStart();
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        $stop = true;
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        if ($useRunlock) {
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          $runfile->lock();
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          $unlock = true;
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        }
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      }
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      if ($app === null) $app = new static();
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      static::_app_configure($app);
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      static::_app_main($app);
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    } catch (ExitError $e) {
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      if ($e->haveMessage()) msg::error($e);
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      exit($e->getCode());
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    } catch (Exception $e) {
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      msg::error($e);
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      exit(1);
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    }
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  }
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  /**
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   * sortir de l'application avec un code d'erreur, qui est 0 par défaut (i.e
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   * pas d'erreur)
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   *
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   * équivalent à lancer l'exception {@link ExitError}
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   */
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  protected static final function exit(int $exitcode=0, $message=null) {
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    throw new ExitError($exitcode, $message);
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  }
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  /**
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   * sortir de l'application avec un code d'erreur, qui vaut 1 par défaut (i.e
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   * une erreur s'est produite)
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   *
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   * équivalent à lancer l'exception {@link ExitError}
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   */
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  protected static final function die($message=null, int $exitcode=1) {
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    throw new ExitError($exitcode, $message);
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  }
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  const PROFILE_SECTION = [
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    "title" => "PROFILS D'EXECUTION",
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    ["group",
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      ["-p", "--profile", "--app-profile",
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        "args" => 1, "argsdesc" => "PROFILE",
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        "action" => [null, "set_application_profile"],
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        "help" => "spécifier le profil d'exécution",
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      ],
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      ["-P", "--prod", "action" => [config::class, "set_profile", config::PROD]],
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      ["-T", "--test", "action" => [config::class, "set_profile", config::TEST]],
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      ["--devel", "action" => [config::class, "set_profile", config::DEVEL]],
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    ],
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  ];
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  static function set_application_profile(string $profile): void {
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    config::set_profile($profile);
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  }
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  const VERBOSITY_SECTION = [
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    "title" => "NIVEAU D'INFORMATION",
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    "show" => false,
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    ["group",
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      ["--verbosity",
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        "args" => 1, "argsdesc" => "silent|very-quiet|quiet|verbose|debug|trace",
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        "action" => [null, "set_application_verbosity"],
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        "help" => "spécifier le niveau d'informations affiché",
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      ],
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      ["-q", "--quiet", "action" => [null, "set_application_verbosity", "quiet"]],
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      ["-v", "--verbose", "action" => [null, "set_application_verbosity", "verbose"]],
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      ["-D", "--debug", "action" => [null, "set_application_verbosity", "debug"]],
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      ["--sql-trace", "action" => [null, "set_application_sql_trace"]],
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    ],
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    ["-L", "--logfile",
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      "args" => "file", "argsdesc" => "OUTPUT",
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      "action" => [null, "set_application_log_output"],
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      "help" => "Logger les messages de l'application dans le fichier spécifié",
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    ],
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    ["group",
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      ["--color",
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        "action" => [null, "set_application_color", true],
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        "help" => "Afficher (resp. ne pas afficher) la sortie en couleur par défaut",
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      ],
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      ["--no-color", "action" => [null, "set_application_color", false]],
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    ],
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  ];
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  static function set_application_verbosity(string $verbosity): void {
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    $msg = msg::get();
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    $nconsole = nconsole::get();
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    switch ($verbosity) {
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    case "s":
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    case "silent":
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      $msg->setLevels([
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        msg::USER => msg::NEVER,
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        msg::TECH => msg::NEVER,
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        msg::EXCEPTION => msg::NEVER,
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      ]);
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      $nconsole->resetParams([
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        "min_level" => nmsg::NONE,
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      ]);
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      break;
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    case "Q":
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    case "very-quiet":
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      $msg->setLevels([
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        msg::USER => msg::CRITICAL,
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        msg::TECH => msg::CRITICAL,
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        msg::EXCEPTION => msg::NEVER,
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      ]);
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      $nconsole->resetParams([
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        "min_level" => nmsg::MAJOR,
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      ]);
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      break;
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    case "q":
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    case "quiet":
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      $msg->setLevels([
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        msg::USER => msg::MAJOR,
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        msg::TECH => msg::MAJOR,
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        msg::EXCEPTION => msg::NEVER,
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      ]);
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      $nconsole->resetParams([
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        "min_level" => nmsg::MAJOR,
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      ]);
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      break;
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    case "v":
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    case "verbose":
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      $msg->setLevels([
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        msg::USER => msg::MINOR,
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        msg::TECH => msg::MINOR,
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        msg::EXCEPTION => msg::NEVER,
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      ]);
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      $nconsole->resetParams([
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        "min_level" => nmsg::MINOR,
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      ]);
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      break;
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    case "D":
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    case "debug":
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      config::set_debug();
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      $msg->setLevels([
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        msg::USER => msg::MINOR,
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        msg::TECH => msg::MINOR,
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        msg::EXCEPTION => msg::NORMAL,
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      ], null, msg::DEBUG);
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      $nconsole->resetParams([
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        "min_level" => nmsg::DEBUG,
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      ]);
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      break;
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    case "T":
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    case "trace":
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      config::set_debug();
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      $msg->setLevels([
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        msg::USER => msg::MINOR,
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        msg::TECH => msg::MINOR,
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        msg::EXCEPTION => msg::MINOR,
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      ], null, msg::DEBUG);
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      $nconsole->resetParams([
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        "min_level" => nmsg::DEBUG,
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      ]);
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      break;
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    default:
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      throw ValueException::invalid_value($verbosity, "verbosity");
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    }
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  }
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  static function set_application_sql_trace(): void {
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    config::add(new ArrayConfig(["app" => ["trace_sql" => true]]));
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  }
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  static function set_application_log_output(string $logfile): void {
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    msg::get()->setParametrableParams(["log_output" => $logfile]);
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    nlog::create_or_reset_params([
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      "output" => $logfile,
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    ], StdMessenger::class, [
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      "add_date" => true,
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      "min_level" => nlog::MINOR,
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    ]);
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  }
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  static function set_application_color(bool $color): void {
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    msg::get()->setParametrableParams(["color" => $color]);
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    nconsole::reset_params([
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      "color" => $color,
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    ]);
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  }
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  const ARGS = [
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    "sections" => [
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      self::PROFILE_SECTION,
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      self::VERBOSITY_SECTION,
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    ],
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  ];
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  /** @throws ArgsException */
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  function parseArgs(array $args=null): void {
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    $parser = new ArgsParser(static::ARGS);
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    $parser->parse($this, $args);
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  }
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  const PROFILE_COLORS = [
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    "prod" => "@r",
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    "test" => "@g",
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    "devel" => "@w",
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  ];
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  const DEFAULT_PROFILE_COLOR = "y";
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  /** retourner le profil courant en couleur */
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  static function profile(?string $profile=null): string {
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    if ($profile === null) $profile = config::get_profile();
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    foreach (static::PROFILE_COLORS as $text => $color) {
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      if (strpos($profile, $text) !== false) {
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        return $color? "<color $color>$profile</color>": $profile;
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      }
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    }
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    $color = static::DEFAULT_PROFILE_COLOR;
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    return $color? "<color $color>$profile</color>": $profile;
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  }
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  abstract function main();
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  const BGLAUNCH_SCRIPT = null;
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  static function runfile(): RunFile {
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    $callerParams = app::get()->getParams();
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    return app::with(static::class, $callerParams)->getRunfile();
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  }
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  static function bglaunch(?array $args=null) {
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    launcher::launch(static::class, cl::merge([
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      static::BGLAUNCH_SCRIPT,
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    ], $args));
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  }
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}
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