bug #818 [MakeDocker] add support for .yml docker-compose files (jrushlow)

This PR was squashed before being merged into the 1.0-dev branch.

Discussion
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[MakeDocker] add support for .yml docker-compose files

Currently, `make:docker:database` only supports creating & manipulating `docker-compose.yaml` files. In the docker world however, it is common to have `docker-compose.yml` files. This PR adds support to manipulate existing `docker-compose`(`.yml`||`.yaml`) files.

When running this command without an existing compose file, `.yaml` will be used.

fixes #777

Commits
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56becd3 [MakeDocker] add support for .yml docker-compose files

Author: weaverryan

src/Maker/MakeDockerDatabase.php

@@ -56,7 +56,6 @@ final class MakeDockerDatabase extends AbstractMaker
     public function __construct(FileManager $fileManager)
     {
         $this->fileManager = $fileManager;
-        $this->composeFilePath = sprintf('%s/docker-compose.yaml', $this->fileManager->getRootDirectory());
     }
 
     public static function getCommandName(): string
@@ -80,18 +79,7 @@ public function interact(InputInterface $input, ConsoleStyle $io, Command $comma
     {
         $io->section('- Docker Compose Setup-');
 
-        $composeFileContents = '';
-        $statusMessage = 'Existing docker-compose.yaml not found: a new one will be generated!';
-
-        if ($this->fileManager->fileExists($this->composeFilePath)) {
-            $composeFileContents = $this->fileManager->getFileContents($this->composeFilePath);
-
-            $statusMessage = 'We found your existing docker-compose.yaml: Let\'s update it!';
-        }
-
-        $io->text($statusMessage);
-
-        $this->composeFileManipulator = new ComposeFileManipulator($composeFileContents);
+        $this->composeFileManipulator = new ComposeFileManipulator($this->getComposeFileContents($io));
 
         $io->newLine();
 
@@ -185,4 +173,34 @@ private function checkForPDOSupport(string $databaseType, ConsoleStyle $io): voi
             );
         }
     }
+
+    /**
+     * Determines and sets the correct Compose File Path and retrieves its contents
+     * if the file exists else an empty string.
+     */
+    private function getComposeFileContents(ConsoleStyle $io): string
+    {
+        $this->composeFilePath = sprintf('%s/docker-compose.yaml', $this->fileManager->getRootDirectory());
+
+        $composeFileExists = false;
+        $statusMessage = 'Existing docker-compose.yaml not found: a new one will be generated!';
+        $contents = '';
+
+        foreach (['.yml', '.yaml'] as $extension) {
+            $composeFilePath = sprintf('%s/docker-compose%s', $this->fileManager->getRootDirectory(), $extension);
+
+            if (!$composeFileExists && $this->fileManager->fileExists($composeFilePath)) {
+                $composeFileExists = true;
+
+                $statusMessage = sprintf('We found your existing docker-compose%s: Let\'s update it!', $extension);
+
+                $this->composeFilePath = $composeFilePath;
+                $contents = $this->fileManager->getFileContents($composeFilePath);
+            }
+        }
+
+        $io->text($statusMessage);
+
+        return $contents;
+    }
 }