Git blame is optional with CLI parameter --blame

Closes #43

Author: VasekPurchart

parallel-lint.php

@@ -25,6 +25,7 @@ function showOptions()
     --json      Output results as JSON string (require PHP 5.4).
     --git <git> Path to Git executable to show blame message (default: 'git').
     --stdin     Load files and folder to test from standard input.
+    --blame     Try to show git blame for row with error.
     -h, --help  Print this help.
 <?php
 }

src/Manager.php

@@ -79,7 +79,9 @@ public function run(Settings $settings = null)
 
         $result = $parallelLint->lint($files);
 
-        $this->gitBlame($result, $settings);
+        if ($settings->blame) {
+            $this->gitBlame($result, $settings);
+        }
 
         $output->writeResult($result, new ErrorFormatter($settings->colors, $translateTokens));
 

src/Settings.php

@@ -92,6 +92,12 @@ class Settings
      */
     public $stdin = false;
 
+    /**
+     * Try to show git blame for row with error
+     * @var bool
+     */
+    public $blame = false;
+
     /**
      * Path to git executable
      * @var string
@@ -163,6 +169,10 @@ public static function parseArguments(array $arguments)
                         $settings->stdin = true;
                         break;
 
+                    case '--blame':
+                        $settings->blame = true;
+                        break;
+
                     default:
                         throw new InvalidArgumentException($argument);
                 }