Rails の routes 情報を csv 書式で出力する。 (rake routes:csv)

output.txt

$ rake -T routes
rake routes      # Print out all defined routes in match order, with names
rake routes:csv  # Print out all defined routes in CSV format

$ rake routes:csv
Prefix, Verb, URI Pattern, Controller#Action
data, GET, /data(.:format), data#index
, POST, /data(.:format), data#create
new_datum, GET, /data/new(.:format), data#new
edit_datum, GET, /data/:id/edit(.:format), data#edit
datum, GET, /data/:id(.:format), data#show
, PATCH, /data/:id(.:format), data#update
, PUT, /data/:id(.:format), data#update
, DELETE, /data/:id(.:format), data#destroy

routes_csv.rake

# See gems/actionpack-4.2.1/lib/action_dispatch/routing/inspector.rb

namespace :routes do
  desc 'Print out all defined routes in CSV format.'
  task :csv => :environment do

    class CSVFormatter
      def initialize
        @buffer = []
      end

      def result
        @buffer.join("\n")
      end

      def section_title(title)
        @buffer << "\n#{title}:"
      end

      def section(routes)
        routes.map do |r|
          @buffer << "#{r[:name]},#{r[:verb]},#{r[:path]},#{r[:reqs]}"
        end
      end

      def header(routes)
        @buffer << 'Prefix,Verb,URI Pattern,Controller#Action'
      end

      def no_routes
        @buffer << <<-MESSAGE.strip_heredoc
          You don't have any routes defined!
          Please add some routes in config/routes.rb.
          For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html.
          MESSAGE
      end

    end

    all_routes = Rails.application.routes.routes
    require 'action_dispatch/routing/inspector'
    inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes)
    # puts inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, ENV['CONTROLLER'])
    puts inspector.format(CSVFormatter.new, ENV['CONTROLLER'])
  end
end

routes_csv2.rake

# See gems/actionpack-4.2.1/lib/action_dispatch/routing/inspector.rb

require 'csv'

namespace :routes do
  desc 'Print out all defined routes in CSV format.'
  task :csv => :environment do

    class CSVFormatter
      def initialize
        @buffer = []
      end

      def result
        CSV.generate do |csv|
          @buffer.each do |record|
            csv << record
          end
        end
      end

      def section_title(title)
        @buffer << ["#{title}"]
      end

      def section(routes)
        routes.map do |r|
          z = r[:reqs].split('#')
          controller = ''
          method = ''
          if z.size > 0
            controller = z[0]
            method = z[1]
          else
          end
          # @buffer << ["#{r[:name]}", "#{r[:verb]}", "#{r[:path]}", "#{r[:reqs]}"]
          @buffer << ["#{r[:name]}", "#{r[:verb]}", "#{r[:path]}", "#{controller}", "#{method}"]
        end
      end

      def header(routes)
        @buffer << ['Prefix', 'Verb', 'URI Pattern', 'Controller#Action']
      end

      def no_routes
        str = <<-MESSAGE.strip_heredoc
          You don't have any routes defined!
          Please add some routes in config/routes.rb.
          For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html.
          MESSAGE
        @buffer << [str]
      end

    end

    all_routes = Rails.application.routes.routes
    require 'action_dispatch/routing/inspector'
    inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes)
    # puts inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, ENV['CONTROLLER'])
    puts inspector.format(CSVFormatter.new, ENV['CONTROLLER'])
  end
end