Merge pull request #72 from o5/feature-option-version

Added option --version

README.md

@@ -30,6 +30,7 @@ For colored output install the suggested package `jakub-onderka/php-console-high
 - `--stdin`         Load files and folder to test from standard input.
 - `--ignore-fails`  Ignore failed tests.
 - `-h, --help`      Print this help.
+- `-V, --version`   Display this application version
 
 
 ## Recommended setting for usage with Symfony framework

parallel-lint.php

@@ -6,7 +6,8 @@
     die(255);
 }
 
-const SUCCESS = 0,
+const VERSION = '0.9.2',
+    SUCCESS = 0,
     WITH_ERRORS = 1,
     FAILED = 255;
 
@@ -34,13 +35,19 @@ function showOptions()
     --stdin         Load files and folder to test from standard input.
     --ignore-fails  Ignore failed tests.
     -h, --help      Print this help.
+    -V, --version   Display this application version
 <?php
 }
 
+function showVersion()
+{
+    echo 'PHP Parallel Lint version ' . VERSION . PHP_EOL;
+}
+
 function showUsage()
 {
+    showVersion();
     ?>
-PHP Parallel Lint version 0.9.1
 -------------------------------
 Usage:
     parallel-lint [sa] [-p php] [-e ext] [-j num] [--exclude dir] [files or directories]
@@ -54,6 +61,11 @@ function showUsage()
     showUsage();
 }
 
+if (in_array('-V', $_SERVER['argv']) || in_array('--version', $_SERVER['argv'])) {
+    showVersion();
+    die();
+}
+
 $files = array(
     __DIR__ . '/../../autoload.php',
     __DIR__ . '/vendor/autoload.php'