From b7ae407657990f1d31fa4141906cc797fde0f634 Mon Sep 17 00:00:00 2001
From: Michael Bleigh <bleigh@google.com>
Date: Mon, 25 Sep 2017 15:03:13 -0700
Subject: [PATCH] Log function rewrites when serving Hosting locally.

---
 lib/hosting/functionsProxy.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/hosting/functionsProxy.js b/lib/hosting/functionsProxy.js
index 1f1d4788b50..06d1851eb30 100644
--- a/lib/hosting/functionsProxy.js
+++ b/lib/hosting/functionsProxy.js
@@ -1,6 +1,7 @@
 'use strict';
 
 var _ = require('lodash');
+var logger = require('../logger');
 var request = require('request');
 var RSVP = require('rsvp');
 
@@ -27,12 +28,16 @@ function _makeVary(vary) {
 module.exports = function(options) {
   return function(rewrite) {
     var url;
+    var destLabel;
     if (_.includes(options.targets, 'functions')) {
+      destLabel = 'local';
       url = 'http://localhost:' + (options.port + 1) + '/' + getProjectId(options) + '/us-central1/' + rewrite.function;
     } else {
+      destLabel = 'live';
       url = 'https://us-central1-' + getProjectId(options) + '.cloudfunctions.net/' + rewrite.function;
     }
     return RSVP.resolve(function(req, res, next) {
+      logger.info('[hosting] Rewriting', req.url, 'to', destLabel, 'function', rewrite.function);
       // Extract the __session cookie from headers to forward it to the functions
       var sessionCookie = (req.headers.cookie || '')
         .split(/; ?/)