Add download url template for node.js

Author: mariusbuescher

README.md

@@ -41,3 +41,32 @@ Example composer.json
     }
 }
 ```
+
+## Configuration
+
+There are three parameters you can configure: The node version (`node-version`), the yarn version (`yarn-version`) and
+the download url template for the node.js binary archives (`node-download-url`).
+
+In the node download url the following parameters are replaced:
+
+- version: `${version}`
+- type of your os: `${osType}`
+- system architecture: `${architecture}`
+- file format `${format}`
+
+Example composer.json: 
+
+```json
+{
+    // ...
+    "extra": {
+        "mariusbuescher": {
+            "node-composer": {
+                "node-version": "6.11.0",
+                "yarn-version": "0.24.5",
+                "node-download-url": "https://nodejs.org/dist/v${version}/node-v${version}-${osType}-${architecture}.${format}"
+            }
+        }
+    }
+}
+```

src/Config.php

@@ -16,6 +16,11 @@ class Config
      */
     private $yarnVersion;
 
+    /**
+     * @var string
+     */
+    private $nodeDownloadUrl;
+
     /**
      * Config constructor.
      */
@@ -32,6 +37,7 @@ public static function fromArray(array $conf)
         $self = new self();
 
         $self->nodeVersion = $conf['node-version'];
+        $self->nodeDownloadUrl = isset($conf['node-download-url']) ? $conf['node-download-url'] : null;
         $self->yarnVersion = isset($conf['yarn-version']) ? $conf['yarn-version'] : null;
 
         if ($self->nodeVersion === null) {
@@ -57,4 +63,12 @@ public function getYarnVersion()
     {
         return $this->yarnVersion;
     }
+
+    /**
+     * @return string
+     */
+    public function getNodeDownloadUrl()
+    {
+        return $this->nodeDownloadUrl;
+    }
 }

src/NodeComposerPlugin.php

@@ -67,7 +67,8 @@ public function onPostUpdate(Event $event)
         $nodeInstaller = new NodeInstaller(
             $this->io,
             new RemoteFilesystem($this->io, $this->composer->getConfig()),
-            $context
+            $context,
+            $this->config->getNodeDownloadUrl()
         );
 
         $installedNodeVersion = $nodeInstaller->isInstalled();