lib/generators/avo/tailwindcss/install_generator.rb
require_relative "../base_generator"
module Generators
module Avo
module Tailwindcss
class InstallGenerator < BaseGenerator
source_root File.expand_path("../templates", __dir__)
namespace "avo:tailwindcss:install"
desc "Add Tailwindcss to your Avo project."
def create_files
unless tailwindcss_installed?
say "Installing Tailwindcss"
system "./bin/bundle add tailwindcss-rails"
system "./bin/rails tailwindcss:install"
end
unless (path = Rails.root.join("config", "avo", "tailwind.config.js")).exist?
say "Generating the Avo config file."
copy_file template_path("tailwind.config.js"), path
end
unless (path = Rails.root.join("app", "assets", "stylesheets", "avo", "tailwindcss")).exist?
say "Generating the tailwindcss directory."
directory ::Avo::Engine.root.join("app", "assets", "stylesheets", "css", "tailwindcss"), path
end
unless (path = Rails.root.join("app", "assets", "stylesheets", "avo" ,"avo.tailwind.css")).exist?
say "Add default tailwind.css"
copy_file template_path("avo.tailwind.css"), path
end
script_name = "avo:tailwindcss"
if Rails.root.join("Procfile.dev").exist?
say "Add #{cmd = "avo_css: yarn #{script_name} --watch"} to Procfile.dev"
append_to_file "Procfile.dev", "#{cmd}\n"
else
say "Add default Procfile.dev"
copy_file template_path("Procfile.dev"), "Procfile.dev"
say "Ensure foreman is installed"
run "gem install foreman"
end
script_command = "tailwindcss -i ./app/assets/stylesheets/avo/avo.tailwind.css -o ./app/assets/builds/avo.tailwind.css -c ./config/avo/tailwind.config.js --minify"
pretty_script_command = "\"#{script_name}\": \"#{script_command}\""
if (path = Rails.root.join("package.json")).exist?
say "Add #{pretty_script_command} to package.json"
json_data = JSON.parse(File.read(path))
json_data["scripts"] ||= {}
json_data["scripts"][script_name] = script_command
File.open(path, 'w') do |file|
file.write(JSON.pretty_generate(json_data) + "\n")
end
else
say "package.json not found.", :yellow
say "Ensure you have the following script in your package.json file.", :yellow
say "\"scripts\": {\n" \
" #{pretty_script_command}\n" \
"}", :green
end
rake_enhance = <<~RUBY
# When running `rake assets:precompile` this is the order of events:
# 1 - Task `avo:yarn_install`
# 2 - Task `avo:sym_link`
# 3 - Cmd `yarn avo:tailwindcss`
# 4 - Task `assets:precompile`
Rake::Task["assets:precompile"].enhance(["avo:sym_link"])
Rake::Task["avo:sym_link"].enhance(["avo:yarn_install"])
Rake::Task["avo:sym_link"].enhance do
`yarn avo:tailwindcss`
end
RUBY
if (path = Rails.root.join("Rakefile")).exist?
say "Add #{rake_enhance.strip} to Rakefile"
append_to_file path, rake_enhance
else
say "Rakefile not found.", :yellow
say "Ensure you have the following code in your Rakefile file.", :yellow
say rake_enhance, :green
end
say "Make sure you run \"bundle exec rake avo:sym_link\" and \"bundle exec rake avo:yarn_install\" before compiling the assets with the \"#{script_name}\" task.", :green
if (path = Rails.root.join("bin", "dev")).exist?
lines = File.read(path).lines
# Insert the task after the shebang line (the first line)
shebang = lines.first
lines[0] = "#{shebang}\nbundle exec rake avo:sym_link\nbundle exec rake avo:yarn_install\n"
File.write(path, lines.join)
end
end
no_tasks do
def template_path(filename)
Pathname.new(__dir__).join("..", "templates", "tailwindcss", filename).to_s
end
def tailwindcss_installed?
Rails.root.join("config", "tailwind.config.js").exist? || Rails.root.join("tailwind.config.js").exist?
end
end
end
end
end
end