initial 2.0.0-a2 commit

src/Custom/Command/CustomCommand.php

@@ -0,0 +1,31 @@
+<?php
+
+
+namespace Custom\Command;
+
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class CustomCommand extends Command
+{
+    // the name of the command (the part after "bin/console")
+    protected static $defaultName = 'custom';
+
+    protected function configure() {
+        $this->setDescription("custom description | 自定义命令的描述字段");
+        $this->addOption("failure", null, null, "以错误码为1返回结果");
+        // ...
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output) {
+        if ($input->getOption("failure")) {
+            $output->writeln("<error>Hello error! I am wrong message.</error>");
+            return Command::FAILURE;
+        } else {
+            $output->writeln("<comment>Hello world! I am successful message.</comment>");
+            return Command::SUCCESS;
+        }
+    }
+}