Minimal Tailwind CSS + PurgeCSS
A script to add Tailwind CSS and PurgeCSS to your Rails 6 application
Used 31 times
V
Vivek Raja
Usage
Run this command in your Rails app directory in the terminal:
rails app:template LOCATION="https://railsbytes.com/script/zyvs0r"Template Source
Review the code before running this template on your machine.
run "yarn add tailwindcss"
run "yarn add @fullhuman/postcss-purgecss"
# Generate tailwind.config.js
run "npx tailwind init --full"
run "mkdir -p app/javascript/stylesheets"
run "mv tailwind.config.js app/javascript/stylesheets/tailwind.config.js"
# Add required imports for Tailwind. Check the documentation to ensure these
# imports are still correct
run "touch app/javascript/stylesheets/application.scss"
inject_into_file "app/javascript/stylesheets/application.scss" do <<~EOF
@import 'tailwindcss/base';
@import 'tailwindcss/components';
@import 'tailwindcss/utilities';
/*! purgecss start ignore */
// Add custom css you don't want to purge here
/*! purgecss end ignore */
EOF
end
# Let webpacker know we want to use Tailwind. Empty line for prettiness
inject_into_file "app/javascript/packs/application.js" do <<~EOF
require('stylesheets/application.scss')
EOF
end
insert_into_file "app/views/layouts/application.html.erb",
after: "<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>\n" do <<~EOF
\t\t<%= stylesheet_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
EOF
end
# NOTE: if you've changed your postcss.config.js, make note of the changes and
# add them back
run "rm postcss.config.js"
run "touch postcss.config.js"
inject_into_file "postcss.config.js" do <<~EOF
let environment = {
plugins: [
require('tailwindcss')('./app/javascript/stylesheets/tailwind.config.js'),
require('autoprefixer'),
require('postcss-import'),
require('postcss-flexbugs-fixes'),
require('postcss-preset-env')({
autoprefixer: {
flexbox: 'no-2009'
},
stage: 3
})
]
};
// Only run PurgeCSS in production
if (process.env.RAILS_ENV === 'production') {
environment.plugins.push(
require('@fullhuman/postcss-purgecss')({
content: [
'./app/**/*.html.erb',
'./app/**/*.html.haml',
'./app/helpers/**/*.rb',
'./app/javascript/**/*.js',
'./app/javascript/**/*.vue',
'./app/javascript/**/*.jsx'
],
defaultExtractor: (content) => content.match(/[A-Za-z0-9-_:/]+/g) || []
})
);
}
module.exports = environment;
EOF
end
# NOTE: Remove 'app/assets/stylesheets/scaffold.scss' as it messes with Tailwind