Executing create-project on initial install using Composer plugin.

Author: grasmash

src/Composer/Plugin.php

@@ -128,7 +128,12 @@ protected function getBltPackage($operation) {
    */
   protected function executeBltUpdate($version) {
     $options = $this->getOptions();
-    if ($options['blt']['update']) {
+
+    if ($this->isInitialInstall()) {
+      $this->io->write('<info>Creating BLT templated files...</info>');
+      $success = $this->executeCommand('blt create-project', [], TRUE);
+    }
+    elseif ($options['blt']['update']) {
       $this->io->write('<info>Updating BLT templated files...</info>');
 
       // Rsyncs, updates composer.json, project.yml, executes scripted updates for version delta.
@@ -148,6 +153,27 @@ protected function executeBltUpdate($version) {
     }
   }
 
+  /**
+   * Determine if BLT is being installed for the first time on this project.
+   *
+   * This would execute in the context of `composer create-project`.
+   *
+   * @return bool
+   *   TRUE if this is the initial install of BLT.
+   */
+  protected function isInitialInstall() {
+    if (!file_exists($this->getRepoRoot() . '/blt/project.yml')
+      && !file_exists($this->getRepoRoot() . '/blt/.schema-version')
+      && file_exists($this->getRepoRoot() . '/.travis.yml')
+      && file_exists($this->getRepoRoot() . '/LICENSE.txt')
+      && file_exists($this->getRepoRoot() . '/README.md')
+      ) {
+      return TRUE;
+    }
+
+    return FALSE;
+  }
+
   /**
    * Returns the repo root's filepath, assumed to be one dir above vendor dir.
    *