Webpacker: Deploying a --skip-sprockets app w/ capistrano

[Jascha-Sundaresan]

adding capistrano/rails/assets results in an error since rake doesn't know how to build the assets:precompile task without sprockets.

leaving the task out means it can't be enhanced with webpacker:compile.

The readme states: " If you are not using sprockets you can manually trigger bundle exec rails webpacker:compile during your app deploy."

I tried this:

namespace :deploy do
  desc 'Initial Deploy'
  task :initial do
    on roles(:app) do
      before 'deploy:restart', 'puma:start'
      invoke 'deploy'
    end
  end

  task :compile_assets do
    Rake::Task["webpacker:compile"].invoke
  end

  after  :finishing,    :compile_assets
  after  :finishing,    :cleanup
end

also

task :compile_assets do
    on roles(:app) do
      Rake::Task["webpacker:compile"].invoke
    end
  end

but I get "Don't know how to build task 'webpacker:compile'"

What am I doing wrong?

Considering webpacker is capable of completely replacing sprockets, relying on sprockets for deploy seems odd.

[gauravtiwari]

@Jascha-Sundaresan Agree but webpacker is still new and we want to support both worlds for now.

Looks like the problem here is capistrano can't find webpacker:compile task. Please try this:

# deploy.rb or Capfile
spec = Gem::Specification.find_by_name 'webpacker'
load "#{spec.gem_dir}/lib/tasks/webpacker/compile.rake"

Perhaps we should provide a hook for capistrano.

[Jascha-Sundaresan]

Clearly, I must be doing something wrong here...

NameError: uninitialized constant Webpacker
/Users/jsundare/.rvm/gems/ruby-2.4.1@rails510/gems/webpacker-1.2/lib/webpacker/file_loader.rb:2:in `<top (required)>'
/Users/jsundare/.rvm/gems/ruby-2.4.1@rails510/gems/webpacker-1.2/lib/webpacker/env.rb:2:in `require'
/Users/jsundare/.rvm/gems/ruby-2.4.1@rails510/gems/webpacker-1.2/lib/webpacker/env.rb:2:in `<top (required)>'
/Users/jsundare/.rvm/gems/ruby-2.4.1@rails510/gems/webpacker-1.2/lib/tasks/webpacker/compile.rake:1:in `require'
/Users/jsundare/.rvm/gems/ruby-2.4.1@rails510/gems/webpacker-1.2/lib/tasks/webpacker/compile.rake:1:in `<top (required)>'
config/deploy.rb:24:in `load'
config/deploy.rb:24:in `<top (required)>'

[Jascha-Sundaresan]

Just to confirm, adding sprockets fixes everything. I'd love to be able to deploy w/o relying on sprockets.

[Jascha-Sundaresan]

any word on providing a capistrano hook?

[dhh]

No current plans to provide one in the box. But feel free to open a issue/PR on the Capistrano site about the topic 👍