I'm using Rails 6 and the webpacker 5.4.3 gem. I just recently upgraded several node packages and added one which broke hot reloading and can't determine why; these are the packages I've upgraded/added:
- @rails/webpacker. from 5.1.1 to 5.4.3
- webpack from 4.39.4 to 4.46.0
- webpack-dev-server from 3.8.0 to 4.1.1
- webpack-cli 4.9.1 (added)
TLDR; it looks like webpack-dev-server is watching for changes but not acting as a proxy to refresh the browser for some reason after I updated some node packages, in fact, webpacker may not even be reading config/webpacker.yml at all as it's not using the indicated host and port..
What I've noticed so far, is that if I run the following in 2 terminals...
$ ./bin/webpack-dev-server
and
$ rails s -b 0.0.0.0 -p 3333
...and change one of my react components (some text for example), I can see that the terminal running the webpack-dev-server (wds) does the following:
- Picks up on the changes.
- Generates a new Hash.
- Recompiles.
I also noticed at this point my public/packs/manifest.json file gets updated properly, but none of the js files that were supposedly recompiled according to the wds terminal output are present in the js folder, for example: js/application-b46eee3e623901e06c18.js js/application-6c52adcc65de5c6db860.hot-update.js js/application-b46eee3e623901e06c18.js.map js/application-6c52adcc65de5c6db860.hot-update.js.map
That being said, the browser never refreshes the view like it used to. When I refresh the browser to see the changes, I can see that the terminal running the rails server indicates that webpacker recompiles everything all over again. I can see the changes, this is just a recompile, not hot loading and takes forever.
Here are my relevant files:
package.json
{
"name": "estat",
"private": true,
"scripts": {
"build:test": "NODE_ENV=test webpack --config webpack.config.js",
"build:production": "NODE_ENV=production yarn install && NODE_ENV=production webpack --config webpack.config.js",
"build:development": "NODE_ENV=development webpack -w --config webpack.config.js",
"lint:eslint": "eslint ./app/javascript/components/**/*.{js,jsx};exit 0",
"lint:eslint-fix": "eslint --fix ./app/javascript/components/**/*.{js,jsx};exit 0"
},
"dependencies": {
"@babel/core": "^7.6.0",
"@babel/plugin-proposal-class-properties": "^7.5.5",
"@babel/plugin-transform-runtime": "^7.6.0",
"@babel/preset-env": "^7.6.0",
"@babel/preset-react": "^7.0.0",
"@fortawesome/fontawesome-free": "^5.15.0",
"@rails/webpacker": "^5.4.3",
"babel-loader": "^8.0.6",
"babel-plugin-transform-react-remove-prop-types": "^0.4.24",
"babel-preset-react": "^6.24.1",
"case-sensitive-paths-webpack-plugin": "^2.2.0",
"elliptic": "^6.5.3",
"es5-shim": "^4.5.13",
"eslint-plugin-ramda": "^2.5.1",
"http-proxy": "^1.18.1",
"imports-loader": "^0.8.0",
"jquery": "*",
"jquery-ui-dist": "^1.12.1",
"jstree": "^3.3.10",
"mark.js": "^8.11.1",
"moment": "^2.24.0",
"node-forge": "^0.10.0",
"node-sass": "^4.12.0",
"prop-types": "^15.7.2",
"ramda": "^0.27.0",
"rc-year-calendar": "^1.0.2",
"react": "^16.9.0",
"react-big-calendar": "^0.33.2",
"react-datepicker": "2.14.1",
"react-dom": "^16.9.0",
"react-modal": "^3.10.1",
"react-redux": "^7.2.6",
"react-select": "^3.0.4",
"react_ujs": "^2.6.0",
"redux": "^4.0.4",
"redux-saga": "^1.0.5",
"serialize-javascript": "^3.1.0",
"webpack": "^4.46.0",
"webpack-cli": "^4.9.1",
"websocket-extensions": "^0.1.4",
"yargs-parser": "13.1.2"
},
"version": "1.3.2",
"devDependencies": {
"eslint": "^7.32.0",
"eslint-plugin-react": "^7.14.3",
"webpack-dev-server": "4.1.1",
"webpack-manifest-plugin": "^4.0.2"
}
}
config/webpacker.yml
# Note: You must restart bin/webpack-dev-server for changes to take effect
default: &default
source_path: app/javascript
source_entry_path: packs
public_root_path: public
public_output_path: packs
cache_path: tmp/cache/webpacker
check_yarn_integrity: false
webpack_compile_output: true
# Additional paths webpack should lookup modules
# ['app/assets', 'engine/foo/app/assets']
resolved_paths: []
# Reload manifest.json on all requests so we reload latest compiled packs
cache_manifest: false
# Extract and emit a css file
extract_css: false
static_assets_extensions:
- .jpg
- .jpeg
- .png
- .gif
- .tiff
- .ico
- .svg
- .eot
- .otf
- .ttf
- .woff
- .woff2
extensions:
- .jsx
- .mjs
- .js
- .sass
- .scss
- .css
- .module.sass
- .module.scss
- .module.css
- .png
- .svg
- .gif
- .jpeg
- .jpg
development:
<<: *default
compile: true
# Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
check_yarn_integrity: false
# Reference: https://webpack.js.org/configuration/dev-server/
dev_server:
https: false
host: localhost
port: 3035
public: localhost:3035
hmr: false
# Inline should be set to true if using HMR
inline: true
overlay: true
compress: true
disable_host_check: true
use_local_ip: false
quiet: false
pretty: false
headers:
'Access-Control-Allow-Origin': '*'
static:
watch:
ignored: '**/node_modules/**'
test:
<<: *default
compile: true
# Compile test packs to a separate directory
public_output_path: packs-test
prod_shared: &prod_shared
<<: *default
# This environment depends on precompilation of packs prior to booting for performance.
compile: false
# Extract and emit a css file
extract_css: true
# Cache manifest.json for performance
cache_manifest: true
devprod:
<<: *prod_shared
preview:
<<: *prod_shared
staging:
<<: *prod_shared
staging-01 :
<<: *prod_shared
production:
<<: *prod_shared
config/webpack/development.js
process.env.NODE_ENV = process.env.NODE_ENV || 'development'
const environment = require('./environment')
config = environment.toWebpackConfig()
config.output.filename = "js/[name]-[hash].js"
module.exports = config
Any help would be appreciated.
