Agile Web Development with Rails 7: Creating a new Rails app with '--css tailwind'

s2k · 2022-02-10T13:51:10.645Z

On (PDF) p. 68 the command to create the depot app is given as:

rails new depot --css tailwind

When I run this, I get an exception listed in the output:

/Users/stephan/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:88:in `require': cannot load such file -- yard (LoadError)
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:88:in `load_yard'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:163:in `setup'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:152:in `generate'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:63:in `block in generation_hook'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:52:in `each'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/gems/3.1.0/gems/yard-0.9.27/lib/yard/rubygems/hook.rb:52:in `generation_hook'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/request_set.rb:311:in `block in install_hooks'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/request_set.rb:310:in `each'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/request_set.rb:310:in `install_hooks'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/request_set.rb:209:in `install'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/commands/install_command.rb:210:in `install_gem'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/commands/install_command.rb:226:in `block in install_gems'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/commands/install_command.rb:219:in `each'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/commands/install_command.rb:219:in `install_gems'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/commands/install_command.rb:167:in `execute'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/command.rb:323:in `invoke_with_build_args'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/command_manager.rb:180:in `process_args'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/command_manager.rb:149:in `run'
  …/.asdf/installs/ruby/3.1.0/lib/ruby/site_ruby/3.1.0/rubygems/gem_runner.rb:53:in `run'
  …/.asdf/installs/ruby/3.1.0/bin/gem:13:in `<main>'

And yet, the command ends in ‘Done in 234ms.’ with exit code 0.

The environment:

Ruby 3.1.0 installed with asdf
Rails 7.0.2
asdf 0.9.0
yard 0.9.27

So, calling yard from the command line directly works fine. It seems that the yard gem isn’t installed. In fact,

grep -in yar Gemfile

yields nothing and the exit code is 1.

Further observation: Creating a new Rails app without ‘–css tailwind’ doesn’t show this behaviour, i.e. it creates a new app without the exception.

Am I doing it wrong? Should the ‘–css tailwind’ cause ‘yard’ to be included in the Gemfile, but doesn’t?

Any input or help is appreciated.

rubys · 2022-02-10T15:17:29.075Z

I haven’t seen this before. Just sharing what I know (which at this point isn’t likely to be helpful):

I don’t have yard installed on my machine
Yard doesn’t appear in the Gemfile or Gemfile.lock
“yard” doesn’t appear in https://github.com/rails/tailwindcss-rails

s2k · 2022-02-10T20:20:22.801Z

Thanks for the input! It led me to the right direction.

After uninstalling the yard gem, creating a new Rails app worked fine.

Any any case, I’m not sure what to think of this. Is it a bug … somewhere?

rubys · 2022-02-10T21:21:31.771Z

Most likely a bug in tailwindcss-rails.

s2k · 2022-02-11T10:58:11.824Z

I figured (most of it) out: I had this in my .gemrc:

install: --rdoc --ri --document=yri
update: --rdoc --ri --document=yri

removing the --document=yri parts, also got rid of the exception.