routie dev init since i didn't adhere to any proper guidance up until now

frontend/node_modules/npm-run-all2/lib/spawn-posix.js

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+/**
+ * @module spawn-posix
+ * @author Toru Nagashima
+ * @copyright 2015 Toru Nagashima. All rights reserved.
+ * See LICENSE file in root directory for full license.
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const crossSpawn = require('cross-spawn')
+const getDescendentProcessInfo = require('pidtree')
+
+// ------------------------------------------------------------------------------
+// Helpers
+// ------------------------------------------------------------------------------
+
+/**
+ * Kills the new process and its sub processes.
+ * @this ChildProcess
+ * @returns {void}
+ */
+function kill () {
+  getDescendentProcessInfo(this.pid, { root: true }, (err, pids) => {
+    if (err) {
+      return
+    }
+
+    for (const pid of pids) {
+      try {
+        process.kill(pid)
+      } catch (_err) {
+        // ignore.
+      }
+    }
+  })
+}
+
+// ------------------------------------------------------------------------------
+// Public Interface
+// ------------------------------------------------------------------------------
+
+/**
+ * Launches a new process with the given command.
+ * This is almost same as `child_process.spawn`.
+ *
+ * This returns a `ChildProcess` instance.
+ * `kill` method of the instance kills the new process and its sub processes.
+ *
+ * @param {string} command - The command to run.
+ * @param {string[]} args - List of string arguments.
+ * @param {object} options - Options.
+ * @returns {ChildProcess} A ChildProcess instance of new process.
+ * @private
+ */
+module.exports = function spawn (command, args, options) {
+  const child = crossSpawn(command, args, options)
+  child.kill = kill
+
+  return child
+}