Local Precompile Assets for low spec VM

lib-mina-local_assets-tasks.rb

# In deploy.rb
# require_relative '../lib/mina/local_assets/tasks'
# ...
# task :deploy do
#   # uncomment this line to make sure you pushed your local branch to the remote origin
#   # invoke :'git:ensure_pushed'
#   invoke :'local_assets:clobber'
#   invoke :'local_assets:precompile'
#   invoke :'local_assets:sync_to_remote_tmp'
  
#   ...
    
#   deploy do 
#     ...
#     invoke :'rails:db_migrate'
#     invoke :'local_assets:sync_to_public'
#     invoke :'deploy:cleanup'
#     ...
#   end
  
#   invoke :'local_assets:clobber'
# end

# lib/mina/local_assets/tasks.rb
namespace :local_assets do
  desc "On local: Compile assets locally."
  task :precompile do
    run(:local) do
      comment "Compile assets locally"
      command "NODE_ENV=#{fetch(:rails_env)} RAILS_ENV=#{fetch(:rails_env)} bundle exec rake assets:precompile"
    end
  end

  desc "On local: Sync assets to a tmp folder on remote."
  task :sync_to_remote_tmp do
    run(:local) do
      comment "Rsync assets to a tmp folder on remote server"
      command %(ssh #{fetch(:user)}@#{fetch(:domain)} mkdir -p #{fetch(:assets_tmp_dir)})
      ['assets', 'packs'].each do |dir|
        command %(
          rsync -Pavz --delete -e "ssh -p #{fetch(:port)}" \
          public/#{dir} #{fetch(:user)}@#{fetch(:domain)}:#{fetch(:assets_tmp_dir)}
        )
      end
    end
  end

  desc "On remote: sync assets from tmp folder to public folder."
  task :sync_to_public do
    comment "Rsync assets directories to public folder"
    ['assets', 'packs'].each do |dir|
      command %(
        rsync -av --delete #{fetch(:assets_tmp_dir)}/#{dir}/ \
        #{fetch(:deploy_to)}/shared/public/#{dir}
      )
    end
  end

  desc "On local: Clobber assets of remote environment locally."
  task :clobber do
    run(:local) do
      comment "Clobber existing local assets"
      command "yarn install"
      command "bundle exec rake assets:clobber"
      comment "Finished clobbering local assets!"
    end
  end
end