Add the docker-compose logs command.

src/Task/Logs.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace Droath\RoboDockerCompose\Task;
+
+use Droath\RoboDockerCompose\DockerServicesTrait;
+use Robo\Exception\TaskException;
+
+/**
+ * Define the docker compose logs task.
+ */
+class Logs extends Base
+{
+    use DockerServicesTrait;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $action = 'logs';
+
+    /**
+     * Produce monochrome output.
+     *
+     * @return $this
+     */
+    public function noColor()
+    {
+        $this->option('no-color');
+
+        return $this;
+    }
+
+    /**
+     * Follow log output.
+     *
+     * @return $this
+     */
+    public function follow()
+    {
+        $this->option('follow');
+
+        return $this;
+    }
+
+    /**
+     * Show timestamps.
+     *
+     * @return $this
+     */
+    public  function timestamps()
+    {
+        $this->option('timestamps');
+
+        return $this;
+    }
+
+    /**
+     * Number of lines to show from the end of the logs for
+     * each container.
+     *
+     * @param string $value
+     *
+     * @return $this
+     * @throws TaskException
+     */
+    public function tail($value = 'all')
+    {
+        if ($value !== 'all' && !is_numeric($value)) {
+            throw new TaskException(
+                __CLASS__,
+                'Provided argument value is invalid.'
+            );
+        }
+        $this->option('tail', $value);
+
+        return $this;
+    }
+}