Add HMR and Fast Refresh

https://github.com/pmmmwh/react-refresh-webpack-plugin

After this change, you can run

foreman start -f Procfile.dev-hmr

and you can edit a JSX file and save and see the React change and the
component state was preserved.

Author: justin808

babel.config.js

@@ -76,6 +76,7 @@ module.exports = function(api) {
           async: false
         }
       ],
+      process.env.WEBPACK_DEV_SERVER && 'react-refresh/babel',
       isProductionEnv && [
         'babel-plugin-transform-react-remove-prop-types',
         {

config/webpack/development.js

@@ -1,5 +1,21 @@
 process.env.NODE_ENV = process.env.NODE_ENV || 'development'
 
+const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
+
 const environment = require('./environment')
 
+const isWebpackDevServer = process.env.WEBPACK_DEV_SERVER;
+
+//plugins
+if (isWebpackDevServer) {
+    environment.plugins.append(
+        'ReactRefreshWebpackPlugin',
+        new ReactRefreshWebpackPlugin({
+            overlay: {
+                sockPort: 3035
+            }
+        })
+    );
+}
+
 module.exports = environment.toWebpackConfig()

package.json

@@ -9,6 +9,8 @@
     "react-on-rails": "12.0.1"
   },
   "devDependencies": {
+    "@pmmmwh/react-refresh-webpack-plugin": "^0.4.1",
+    "react-refresh": "^0.8.3",
     "webpack-dev-server": "^3.11.0"
   }
 }

yarn.lock

@@ -940,6 +940,18 @@
   resolved "https://registry.yarnpkg.com/@csstools/convert-colors/-/convert-colors-1.4.0.tgz#ad495dc41b12e75d588c6db8b9834f08fa131eb7"
   integrity sha512-5a6wqoJV/xEdbRNKVo6I4hO3VjyDq//8q2f9I6PBAvMesJHFauXDorcNCsr9RzvsZnaWi5NYCcfyqP1QeFHFbw==
 
+"@pmmmwh/react-refresh-webpack-plugin@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@pmmmwh/react-refresh-webpack-plugin/-/react-refresh-webpack-plugin-0.4.1.tgz#a4db0ed8e58c2f8566161c9a8cdf1d095c9a891b"
+  integrity sha512-MzM87WdX2r2KRFfhEho7oGyK1XRE/J9WwjB3v6oLQHN0dzBypBZxSWjnoYx+RWneRCsg8Sin1myf+EjX1fqIbQ==
+  dependencies:
+    ansi-html "^0.0.7"
+    error-stack-parser "^2.0.6"
+    html-entities "^1.2.1"
+    native-url "^0.2.6"
+    schema-utils "^2.6.5"
+    source-map "^0.7.3"
+
 "@rails/[email protected]":
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/@rails/webpacker/-/webpacker-5.1.1.tgz#3c937aa719e46341f037a3f37349ef58085950df"
@@ -1233,7 +1245,7 @@ ansi-colors@^3.0.0:
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.4.tgz#e3a3da4bfbae6c86a9c285625de124a234026fbf"
   integrity sha512-hHUXGagefjN2iRrID63xckIvotOXOojhQKWIPUZ4mNUZ9nLZW+7FMNoE1lOkEhNWYsx/7ysGIuJYCiMAA9FnrA==
 
-[email protected]:
+[email protected], ansi-html@^0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/ansi-html/-/ansi-html-0.0.7.tgz#813584021962a9e9e6fd039f940d12f56ca7859e"
   integrity sha1-gTWEAhliqenm/QOflA0S9WynhZ4=
@@ -2775,6 +2787,13 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
+error-stack-parser@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/error-stack-parser/-/error-stack-parser-2.0.6.tgz#5a99a707bd7a4c58a797902d48d82803ede6aad8"
+  integrity sha512-d51brTeqC+BHlwF0BhPtcYgF5nlzf9ZZ0ZIUQNZpc9ZB9qw5IJ2diTrBY9jlCJkTLITYPjmiX6OWCwH+fuyNgQ==
+  dependencies:
+    stackframe "^1.1.1"
+
 es-abstract@^1.17.0-next.1, es-abstract@^1.17.2, es-abstract@^1.17.5:
   version "1.17.6"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.17.6.tgz#9142071707857b2cacc7b89ecb670316c3e2d52a"
@@ -3528,7 +3547,7 @@ html-comment-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.2.tgz#97d4688aeb5c81886a364faa0cad1dda14d433a7"
   integrity sha512-P+M65QY2JQ5Y0G9KKdlDpo0zK+/OHptU5AaBwUfAIDJZk1MYf32Frm84EcOytfJE0t5JvkAnKlmjsXDnWzCJmQ==
 
-html-entities@^1.3.1:
+html-entities@^1.2.1, html-entities@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.3.1.tgz#fb9a1a4b5b14c5daba82d3e34c6ae4fe701a0e44"
   integrity sha512-rhE/4Z3hIhzHAUKbW8jVcCyuT5oJCXXqhN/6mXXVCpzTmvJnoH2HL/bt3EZ6p55jbFJBeAe1ZNpL5BugLujxNA==
@@ -4634,6 +4653,13 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+native-url@^0.2.6:
+  version "0.2.6"
+  resolved "https://registry.yarnpkg.com/native-url/-/native-url-0.2.6.tgz#ca1258f5ace169c716ff44eccbddb674e10399ae"
+  integrity sha512-k4bDC87WtgrdD362gZz6zoiXQrl40kYlBmpfmSjwRO1VU0V5ccwJTlxuE72F6m3V0vc1xOf6n3UCP9QyerRqmA==
+  dependencies:
+    querystring "^0.2.0"
+
 [email protected]:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
@@ -6013,7 +6039,7 @@ querystring-es3@^0.2.0:
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
   integrity sha1-nsYfeQSYdXB9aUFFlv2Qek1xHnM=
 
-[email protected]:
+[email protected], querystring@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
   integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
@@ -6076,6 +6102,11 @@ [email protected]:
     "@babel/runtime-corejs3" "^7.9.6"
     concurrently "^5.1.0"
 
+react-refresh@^0.8.3:
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/react-refresh/-/react-refresh-0.8.3.tgz#721d4657672d400c5e3c75d063c4a85fb2d5d68f"
+  integrity sha512-X8jZHc7nCMjaCqoU+V2I0cOhNW+QMBwSUkeXnTi8IPe6zaRWfn60ZzvFDZqWPfmSJfjub7dDW1SP0jaHWLu/hg==
+
 react@^16.13.1:
   version "16.13.1"
   resolved "https://registry.yarnpkg.com/react/-/react-16.13.1.tgz#2e818822f1a9743122c063d6410d85c1e3afe48e"
@@ -6718,6 +6749,11 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
+source-map@^0.7.3:
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
+  integrity sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==
+
 spawn-command@^0.0.2-1:
   version "0.0.2-1"
   resolved "https://registry.yarnpkg.com/spawn-command/-/spawn-command-0.0.2-1.tgz#62f5e9466981c1b796dc5929937e11c9c6921bd0"
@@ -6819,6 +6855,11 @@ stable@^0.1.8:
   resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
   integrity sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w==
 
+stackframe@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/stackframe/-/stackframe-1.2.0.tgz#52429492d63c62eb989804c11552e3d22e779303"
+  integrity sha512-GrdeshiRmS1YLMYgzF16olf2jJ/IzxXY9lhKOskuVziubpTYcYqyOwYeJKzQkwy7uN0fYSsbsC4RQaXf9LCrYA==
+
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"