Merge pull request #8 from dotkernel/issue-7

Issue #7: Fixed command that lists all commands.

Author: arhimede

src/Application.php

@@ -45,7 +45,7 @@ public function __destruct()
      */
     public function doRun(InputInterface $input, OutputInterface $output): int
     {
-        $this->fileLocker->setCommandName($this->getCommandName($input))->initLockFile();
+        $this->fileLocker->setCommandName($this->getCommandName($input));
 
         try {
             $this->fileLocker->lock();

src/FileLocker.php

@@ -32,9 +32,8 @@ class FileLocker implements FileLockerInterface
      */
     public function initLockFile(): self
     {
-        if ($this->enabled) {
-            $this->lockFile = fopen($this->getLockFilePath(), 'w+');
-        }
+        $this->lockFile = fopen($this->getLockFilePath(), 'w+');
+
         return $this;
     }
 
@@ -135,6 +134,12 @@ public function lock(): void
             return;
         }
 
+        if (empty($this->commandName)) {
+            return;
+        }
+
+        $this->initLockFile();
+
         if (!flock($this->lockFile, LOCK_EX|LOCK_NB, $wouldBlock)) {
             if ($wouldBlock) {
                 throw new \Exception('Another process holds the lock!');
@@ -150,7 +155,11 @@ public function unlock(): void
         if (!$this->enabled) {
             return;
         }
-        
+
+        if (empty($this->commandName)) {
+            return;
+        }
+
         flock($this->lockFile, LOCK_UN);
         fclose($this->lockFile);
     }