add script handler

.spoons/ScriptHandler.php

+<?php
+
+namespace Spoons;
+
+use Composer\Script\Event;
+use Symfony\Component\Process\Process;
+
+/**
+ * A Composer script handler.
+ */
+class ScriptHandler {
+
+  /**
+   * Create a web/modules/[SLUG] dir and symlink all project files into it.
+   *
+   * @param \Composer\Script\Event $event
+   *   A Composer package event.
+   */
+  public static function createSymlinks(Event $event) {
+    $full_name = $event->getComposer()->getPackage()->getName();
+    [, $project_name] = explode('/', $full_name);
+    $cmd = "rm -rf web/modules/custom/$project_name && mkdir -p web/modules/custom/$project_name";
+    $process = new Process($cmd);
+    $process->mustRun();
+    $cmd = 'find ../../../.. -maxdepth 1 ! -name .git ! -name web ! -name vendor ! -name .idea -print | while read file; do ln -s "$file" .; done';
+    $process = new Process($cmd, "web/modules/custom/$project_name");
+    $process->mustRun();
+  }
+
+}