Create node_modules folder

node_modules/before-after-hook/lib/add.js

@@ -0,0 +1,46 @@
+module.exports = addHook;
+
+function addHook(state, kind, name, hook) {
+  var orig = hook;
+  if (!state.registry[name]) {
+    state.registry[name] = [];
+  }
+
+  if (kind === "before") {
+    hook = function (method, options) {
+      return Promise.resolve()
+        .then(orig.bind(null, options))
+        .then(method.bind(null, options));
+    };
+  }
+
+  if (kind === "after") {
+    hook = function (method, options) {
+      var result;
+      return Promise.resolve()
+        .then(method.bind(null, options))
+        .then(function (result_) {
+          result = result_;
+          return orig(result, options);
+        })
+        .then(function () {
+          return result;
+        });
+    };
+  }
+
+  if (kind === "error") {
+    hook = function (method, options) {
+      return Promise.resolve()
+        .then(method.bind(null, options))
+        .catch(function (error) {
+          return orig(error, options);
+        });
+    };
+  }
+
+  state.registry[name].push({
+    hook: hook,
+    orig: orig,
+  });
+}

node_modules/before-after-hook/lib/register.js

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+module.exports = register;
+
+function register(state, name, method, options) {
+  if (typeof method !== "function") {
+    throw new Error("method for before hook must be a function");
+  }
+
+  if (!options) {
+    options = {};
+  }
+
+  if (Array.isArray(name)) {
+    return name.reverse().reduce(function (callback, name) {
+      return register.bind(null, state, name, callback, options);
+    }, method)();
+  }
+
+  return Promise.resolve().then(function () {
+    if (!state.registry[name]) {
+      return method(options);
+    }
+
+    return state.registry[name].reduce(function (method, registered) {
+      return registered.hook.bind(null, method, options);
+    }, method)();
+  });
+}

node_modules/before-after-hook/lib/remove.js

@@ -0,0 +1,19 @@
+module.exports = removeHook;
+
+function removeHook(state, name, method) {
+  if (!state.registry[name]) {
+    return;
+  }
+
+  var index = state.registry[name]
+    .map(function (registered) {
+      return registered.orig;
+    })
+    .indexOf(method);
+
+  if (index === -1) {
+    return;
+  }
+
+  state.registry[name].splice(index, 1);
+}