Allow executable arguments to be set for all docker-composer commands.

src/ExecutableArguments.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace Droath\RoboDockerCompose;
+
+use Robo\Common\CommandArguments;
+
+/**
+ * Define command executable arguments.
+ */
+trait ExecutableArguments
+{
+    /**
+     * Executable arguments.
+     *
+     * @var string
+     */
+    protected $executableArgs = '';
+
+    /**
+     * Add executable options.
+     *
+     * @param string $option
+     *   The executable option name.
+     * @param string $value
+     *   The executable option value.
+     */
+    protected function execOption($option, $value = null)
+    {
+        if (isset($option)) {
+            if (strpos($option, '-') !== 0) {
+                $option = "--$option";
+            }
+
+            $this->executableArgs .= null == $option ? '' : ' ' . $option;
+            $this->executableArgs .= null == $value ? '' : ' ' . CommandArguments::escape($value);
+        }
+
+        return $this;
+    }
+
+}