Fix actions/tour

node_modules/catering/index.js

@@ -0,0 +1,28 @@
+'use strict'
+
+var nextTick = require('./next-tick')
+
+exports.fromCallback = function (callback, symbol) {
+  if (callback === undefined) {
+    var promise = new Promise(function (resolve, reject) {
+      callback = function (err, res) {
+        if (err) reject(err)
+        else resolve(res)
+      }
+    })
+
+    callback[symbol !== undefined ? symbol : 'promise'] = promise
+  } else if (typeof callback !== 'function') {
+    throw new TypeError('Callback must be a function')
+  }
+
+  return callback
+}
+
+exports.fromPromise = function (promise, callback) {
+  if (callback === undefined) return promise
+
+  promise
+    .then(function (res) { nextTick(() => callback(null, res)) })
+    .catch(function (err) { nextTick(() => callback(err)) })
+}