Add download features

.gitignore

@@ -2,3 +2,4 @@ vendor/
 deployer.phar
 pages/
 .idea/
+/nbproject/

src/Deployer/Remote/Remote.php

@@ -59,4 +59,14 @@ class Remote implements RemoteInterface
         }
         $this->sftp->put($to, $from, NET_SFTP_LOCAL_FILE);
     }
+    
+    /**
+     * download file from remote in current directory
+     * @param type $from
+     * @param type $to
+     */
+    public function downloadFile($from, $to)
+    {
+        return $this->sftp->get($from, $to);
+    }
 }

src/Deployer/Tool.php

@@ -185,6 +185,20 @@ class Tool
         }
     }
 
+    public function download($remote, $local)
+    {
+        $this->checkConnected();
+
+        $this->writeln("Downloading file <info>$remote</info> to <info>$local</info>");
+        $status = $this->remote->downloadFile($remote , $local );
+        
+        if (!$status) {
+             throw new \RuntimeException("Download error");
+        }
+            
+        $this->writeln("Download complete");
+    }
+    
     public function cd($directory)
     {
         $this->checkConnected();

src/Deployer/functions.php

@@ -80,6 +80,17 @@ function upload($from, $to)
     Context::get()->upload($from, $to);
 }
 
+/**
+ * 
+ * @param type $from
+ * @param type $to
+ */
+function download($from, $to)
+{
+    Context::get()->download($from, $to);
+}
+
+
 /**
  * Change current directory for whole connect session.
  * @param string $directory