From 1aa54b074bda2f07a315b26d738bd90f617bd278 Mon Sep 17 00:00:00 2001
From: Wei-Wei Wu <wuxx1045@umn.edu>
Date: Sun, 9 Sep 2018 11:42:18 -0700
Subject: [PATCH] Add gulp watch task for docs (#5724)

gulp docs --watch
---
 docs/developers/contributing.md | 1 +
 gulpfile.js                     | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/developers/contributing.md b/docs/developers/contributing.md
index fa3511bb09a..551ac71ca97 100644
--- a/docs/developers/contributing.md
+++ b/docs/developers/contributing.md
@@ -37,6 +37,7 @@ The following commands are now available from the repository root:
 > gulp lint                 // perform code linting (ESLint)
 > gulp test                 // perform code linting and run unit tests
 > gulp docs                 // build the documentation in ./dist/docs
+> gulp docs --watch         // starts the gitbook live reloaded server
 ```
 
 More information can be found in [gulpfile.js](https://github.com/chartjs/Chart.js/blob/master/gulpfile.js).
diff --git a/gulpfile.js b/gulpfile.js
index 24c01665ae4..f6795fa7f56 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -190,7 +190,7 @@ function docsTask(done) {
   const cmd = process.execPath;
 
   exec([cmd, script, 'install', './'].join(' ')).then(() => {
-    return exec([cmd, script, 'build', './', './dist/docs'].join(' '));
+    return exec([cmd, script, argv.watch ? 'serve' : 'build', './', './dist/docs'].join(' '));
   }).catch((err) => {
     console.error(err.stdout);
   }).then(() => {