add command tips for app

Author: inhere

src/Application.php

@@ -16,16 +16,6 @@
  */
 class Application extends AbstractApplication
 {
-    /**
-     * @var string|null
-     */
-    protected $commandsNamespace;
-
-    /**
-     * @var string|null
-     */
-    protected $controllersNamespace;
-
     /**********************************************************
      * register console controller/command
      **********************************************************/
@@ -193,9 +183,27 @@ protected function dispatch($name)
             return $this->runAction($name, $action, true);
         }
 
+        // command not found
         if (true !== self::fire(self::ON_NOT_FOUND, [$this])) {
-            $this->output->error("Console controller or command [$name] not exists!");
-            $this->showCommandList(false);
+            $this->output->liteError("The console command '{$name}' not exists!");
+
+            // find similar command names by similar_text()
+            $similar = [];
+            $commands = array_merge($this->getControllerNames(), $this->getCommandNames());
+
+            foreach ($commands as $command) {
+                similar_text($name, $command, $percent);
+
+                if (45 <= (int)$percent) {
+                    $similar[] = $command;
+                }
+            }
+
+            if ($similar) {
+                $this->write(sprintf('Maybe what you mean is: <info>%s</info>', implode(', ', $similar)));
+            } else {
+                $this->showCommandList(false);
+            }
         }
 
         return 404;
@@ -274,37 +282,4 @@ public function runAction($name, $action, $believable = false, $standAlone = fal
 
         return $object->run($action);
     }
-
-    /**
-     * @return null|string
-     */
-    public function getCommandsNamespace()
-    {
-        return $this->commandsNamespace;
-    }
-
-    /**
-     * @param null|string $commandsNamespace
-     */
-    public function setCommandsNamespace($commandsNamespace)
-    {
-        $this->commandsNamespace = $commandsNamespace;
-    }
-
-    /**
-     * @return null|string
-     */
-    public function getControllersNamespace()
-    {
-        return $this->controllersNamespace;
-    }
-
-    /**
-     * @param null|string $controllersNamespace
-     */
-    public function setControllersNamespace($controllersNamespace)
-    {
-        $this->controllersNamespace = $controllersNamespace;
-    }
-
 }

src/BuiltIn/PharController.php

@@ -22,14 +22,20 @@ class PharController extends Controller
 
     /**
      * pack directory(s) to a phar file.
+     * @usage
+     *  {command} phar=[FILE] src-dir=[DIR] [-c --format ...]
+     *
      * @arguments
-     *  src-dir   The source directory for pack<red>*</red>
-     *  phar      The output phar file path
+     *  phar       The output phar file path.<red>*</red>
+     *  src-dirs   The source directory for pack, multi use ',' split.<red>*</red>
      *
      * @options
-     *  -c,--compress   Want compress php file.
-     *  --file-include  Append file include
+     *  -c, --compress      Compress the phar file to 'gz','bz','zip'.
+     *      --format        Format php source file content(will remove all annotations).
+     *      --file-include  Append file include
      *
+     * @example
+     *  {command} phar=my.phar src-dir=./ -c --format
      */
     public function packCommand()
     {