_cset(:rails_env, "production")

_cset(:asset_pipeline, true)
_cset(:asset_env, "RAILS_GROUPS=assets")
_cset(:assets_prefix, "assets")

set(:normalize_asset_timestamps) do
  if asset_pipeline
    false
  else
    true
  end
end

before 'deploy:finalize_update', 'rails:assets:symlink'
after 'deploy:update_code', 'rails:assets:precompile'
after 'deploy:update_code', 'rails:setup'

namespace :rails do
  desc "Generate rails configuration and helpers"
  task :setup, :roles => :app, :except => { :no_release => true } do
    upload_template_file("rails.console.sh",
                         File.join(bin_path, "con"),
                         :mode => "0755")
  end

  namespace :assets do
    desc <<-DESC
      [internal] This task will set up a symlink to the shared directory \
      for the assets directory. Assets are shared across deploys to avoid \
      mid-deploy mismatches between old application html asking for assets \
      and getting a 404 file not found error. The assets cache is shared \
      for efficiency. If you cutomize the assets path prefix, override the \
      :assets_prefix variable to match.
    DESC
    task :symlink, :roles => [:web, :asset], :except => { :no_release => true } do
      if asset_pipeline
        run <<-CMD
          rm -rf #{latest_release}/public/#{assets_prefix} &&
          mkdir -p #{latest_release}/public &&
          mkdir -p #{shared_path}/assets &&
          ln -s #{shared_path}/assets #{latest_release}/public/#{assets_prefix}
        CMD
      end
    end

    desc <<-DESC
      Run the asset precompilation rake task. You can specify the full path \
      to the rake executable by setting the rake variable. You can also \
      specify additional environment variables to pass to rake via the \
      asset_env variable. The defaults are:

        set :rake,      "rake"
        set :rails_env, "production"
        set :asset_env, "RAILS_GROUPS=assets"
    DESC
    task :precompile, :roles => [:web, :asset], :except => { :no_release => true } do
      if asset_pipeline
        run "cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:precompile"
      end
    end

    desc <<-DESC
      Run the asset clean rake task. Use with caution, this will delete \
      all of your compiled assets. You can specify the full path \
      to the rake executable by setting the rake variable. You can also \
      specify additional environment variables to pass to rake via the \
      asset_env variable. The defaults are:

        set :rake,      "rake"
        set :rails_env, "production"
        set :asset_env, "RAILS_GROUPS=assets"
    DESC
    task :clean, :roles => [:web, :asset], :except => { :no_release => true } do
      if asset_pipeline
        run "cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:clean"
      end
    end
  end
end