I try to create new Rails 6 app. When I do this, Rails create new folder node_modules. inside it, there are many other folders (packages) that I didn't install.
1. What's the folder node_modules inside my app?
2. Why do I need it? And why do I need all default packages inside it?
3. Is it possible not to copy all these packages?
4. There are only 5 dependencies in the file myapp/package.json, and more than 700 are installed in the folder myapp/node_modules/. Why?
My path to install Rails:
download and install Node.js https://nodejs.org/en/download/
chsh -s /bin/zsh
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install rbenv ruby-build
echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.zshrc
source ~/.zshrc
rbenv install 3.0.0
rbenv global 3.0.0
gem install rails -v 6.1.0
rbenv rehash
brew install yarn
Create new Rails app:
rails new myapp
create
...
Bundle complete! 17 Gemfile dependencies, 74 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
run bundle binstubs bundler
rails webpacker:install
create config/webpacker.yml
Copying webpack core config
create config/webpack
create config/webpack/development.js
create config/webpack/environment.js
create config/webpack/production.js
create config/webpack/test.js
Copying postcss.config.js to app root directory
create postcss.config.js
Copying babel.config.js to app root directory
create babel.config.js
Copying .browserslistrc to app root directory
create .browserslistrc
The JavaScript app source directory already exists
apply /Users/nikolaylipovtsev/.rbenv/versions/3.0.0/lib/ruby/gems/3.0.0/gems/webpacker-5.2.1/lib/install/binstubs.rb
Copying binstubs
exist bin
create bin/webpack
create bin/webpack-dev-server
append .gitignore
Installing all JavaScript dependencies [5.2.1]
run yarn add @rails/[email protected] from "."
yarn add v1.22.10
info No lockfile found.
[1/4] Resolving packages...
warning @rails/webpacker > node-sass > [email protected]: request has been deprecated, see https://github.com/request/request/issues/3142
warning @rails/webpacker > node-sass > node-gyp > [email protected]: request has been deprecated, see https://github.com/request/request/issues/3142
warning @rails/webpacker > node-sass > request > [email protected]: this library is no longer supported
warning @rails/webpacker > webpack > watchpack > watchpack-chokidar2 > [email protected]: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
warning @rails/webpacker > webpack > watchpack > chokidar > [email protected]: Please update to v 2.2.x
warning @rails/webpacker > webpack > watchpack > watchpack-chokidar2 > chokidar > [email protected]: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
warning @rails/webpacker > webpack > micromatch > snapdragon > source-map-resolve > [email protected]: https://github.com/lydell/resolve-url#deprecated
warning @rails/webpacker > webpack > micromatch > snapdragon > source-map-resolve > [email protected]: Please see https://github.com/lydell/urix#deprecated
[2/4] Fetching packages...
[3/4] Linking dependencies...
[4/4] Building fresh packages...
success Saved lockfile.
success Saved 603 new dependencies.
info Direct dependencies
├─ @rails/[email protected]
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✨ Done in 89.36s.
Installing dev server for live reloading
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warning "webpack-dev-server > [email protected]" has unmet peer dependency "webpack@^4.0.0 || ^5.0.0".
warning " > [email protected]" has unmet peer dependency "webpack@^4.0.0 || ^5.0.0".
[4/4] Building fresh packages...
success Saved lockfile.
success Saved 102 new dependencies.
info Direct dependencies
└─ [email protected]
info All dependencies
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✨ Done in 20.77s.
Webpacker successfully installed
Default package.json:
{
"name": "myapp",
"private": true,
"dependencies": {
"@rails/actioncable": "^6.0.0",
"@rails/activestorage": "^6.0.0",
"@rails/ujs": "^6.0.0",
"@rails/webpacker": "5.2.1",
"turbolinks": "^5.2.0"
},
"version": "0.1.0",
"devDependencies": {
"webpack-dev-server": "^3.11.1"
}
}
