Add Rails 5.2 and 6.0 to build, fixing up issues

In addition to adding scenarios for 5.2 and 6.0, I had to do some
cleanup to get everything working well:

* Replace string-based version checks with numeric ones, and update all
  version checks to treat 6+ the same as 5 (except where necessary).

* Avoid touching `ActiveSupport::Deprecation::DeprecationProxy`
  instances to fix a couple of warnings in Rails 6.

* Update Bundler as part of container setup, because Rails 6's config
  seems to rely on a newer version of Bundler than the one that comes
  with the Ruby image.

* Update the regexes in the `show-routes` spec to be compatible with 5.2
  and up.

* Add a new code path to `show-routes` for Rails 6.

* Upgrade all bundles, just for hygiene.

Rakefile

@@ -23,7 +23,8 @@ end
 
 desc 'Start the Rails console'
 task :console => :development_env do
-  if (Rails::VERSION::MAJOR == 5 && Rails::VERSION::MINOR >= 1)
+  if (Rails::VERSION::MAJOR == 5 && Rails::VERSION::MINOR >= 1) ||
+      Rails::VERSION::MAJOR >= 6
     require 'rails/command'
     require 'rails/commands/console/console_command'
   else

lib/pry-rails/commands/show_models.rb

@@ -40,6 +40,10 @@ class PryRails::ShowModels < Pry::ClassCommand
     models = []
 
     ObjectSpace.each_object do |o|
+      # If this is deprecated, calling any methods on it will emit a warning,
+      # so just back away slowly.
+      next if ActiveSupport::Deprecation::DeprecationProxy === o
+
       is_model = false
 
       begin

lib/pry-rails/commands/show_routes.rb

@@ -17,10 +17,12 @@ class PryRails::ShowRoutes < Pry::ClassCommand
     Rails.application.reload_routes!
     all_routes = Rails.application.routes.routes
 
-    formatted = case Rails.version.to_s
-      when /^[45]/
+    formatted =
+      if Rails::VERSION::MAJOR >= 6
+        process_rails_6_and_higher(all_routes)
+      elsif Rails::VERSION::MAJOR == 4 || Rails::VERSION::MAJOR == 5
         process_rails_4_and_5(all_routes)
-      when /^3\.2/
+      elsif Rails::VERSION::MAJOR >= 3 && Rails::VERSION::MINOR >= 2
         process_rails_3_2(all_routes)
       else
         process_rails_3_0_and_3_1(all_routes)
@@ -64,12 +66,26 @@ class PryRails::ShowRoutes < Pry::ClassCommand
 
   def process_rails_3_2(all_routes)
     require 'rails/application/route_inspector'
+
     Rails::Application::RouteInspector.new.format(all_routes)
   end
 
   def process_rails_4_and_5(all_routes)
     require 'action_dispatch/routing/inspector'
-    ActionDispatch::Routing::RoutesInspector.new(all_routes).format(ActionDispatch::Routing::ConsoleFormatter.new).split(/\n/)
+
+    ActionDispatch::Routing::RoutesInspector.
+      new(all_routes).
+      format(ActionDispatch::Routing::ConsoleFormatter.new).
+      split(/\n/)
+  end
+
+  def process_rails_6_and_higher(all_routes)
+    require 'action_dispatch/routing/inspector'
+
+    ActionDispatch::Routing::RoutesInspector.
+      new(all_routes).
+      format(ActionDispatch::Routing::ConsoleFormatter::Sheet.new).
+      split(/\n/)
   end
 
   PryRails::Commands.add_command(self)

lib/pry-rails/prompt.rb

@@ -13,7 +13,7 @@ module PryRails
       end
 
       def project_name
-        if Rails::VERSION::MAJOR == 6
+        if Rails::VERSION::MAJOR >= 6
           Rails.application.class.module_parent_name.underscore
         else
           Rails.application.class.parent_name.underscore

lib/pry-rails/railtie.rb

@@ -14,14 +14,12 @@ module PryRails
         end
       end
 
-      if Rails::VERSION::MAJOR == 4 || Rails::VERSION::MAJOR == 5 ||
-         Rails::VERSION::MAJOR == 6
+      if Rails::VERSION::MAJOR >= 4
         Rails.application.config.console = Pry
       end
 
       if (Rails::VERSION::MAJOR == 3 && Rails::VERSION::MINOR >= 2) ||
-          Rails::VERSION::MAJOR == 4 || Rails::VERSION::MAJOR == 5 ||
-          Rails::VERSION::MAJOR == 6
+          Rails::VERSION::MAJOR >= 4
         require "rails/console/app"
         require "rails/console/helpers"
         TOPLEVEL_BINDING.eval('self').extend ::Rails::ConsoleMethods

scenarios.yml

@@ -2,7 +2,7 @@ project: pryrails
 
 shared:
   from: ruby:2.4
-  cmd: "(bundle check || bundle install) && bundle exec rake"
+  cmd: "(bundle check || (gem install bundler && bundle install)) && bundle exec rake"
   service:
     volumes:
       - bundle_{{scenario_name}}:/usr/local/bundle
@@ -25,3 +25,6 @@ scenarios:
   rails42: {}
   rails50: {}
   rails51: {}
+  rails52: {}
+  rails60:
+    from: ruby:2.5

scenarios/rails30.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.0
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails31.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.0
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails32.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.0
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails40.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.3
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails41.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.3
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails42.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.4
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails50.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.4
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails51.dockerfile

@@ -2,4 +2,4 @@ FROM ruby:2.4
 RUN mkdir -p /scenario
 WORKDIR /scenario
 ENV LANG=C.UTF-8
-CMD (bundle check || bundle install) && bundle exec rake
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails52.docker-compose.yml

@@ -0,0 +1,15 @@
+---
+version: "2"
+services:
+  scenario:
+    build:
+      context: ..
+      dockerfile: scenarios/rails52.dockerfile
+    image: pryrails_scenario_rails52
+    volumes:
+    - "..:/scenario"
+    - "bundle_rails52:/usr/local/bundle"
+    environment:
+      BUNDLE_GEMFILE: scenarios/rails52.gemfile
+volumes:
+  bundle_rails52: {}

scenarios/rails52.dockerfile

@@ -0,0 +1,5 @@
+FROM ruby:2.4
+RUN mkdir -p /scenario
+WORKDIR /scenario
+ENV LANG=C.UTF-8
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails52.gemfile

@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+gem "rails", "~> 5.2.0"
+gem "mongoid"
+gem "sqlite3"
+
+gemspec :path => "../"

scenarios/rails60.docker-compose.yml

@@ -0,0 +1,15 @@
+---
+version: "2"
+services:
+  scenario:
+    build:
+      context: ..
+      dockerfile: scenarios/rails60.dockerfile
+    image: pryrails_scenario_rails60
+    volumes:
+    - "..:/scenario"
+    - "bundle_rails60:/usr/local/bundle"
+    environment:
+      BUNDLE_GEMFILE: scenarios/rails60.gemfile
+volumes:
+  bundle_rails60: {}

scenarios/rails60.dockerfile

@@ -0,0 +1,5 @@
+FROM ruby:2.5
+RUN mkdir -p /scenario
+WORKDIR /scenario
+ENV LANG=C.UTF-8
+CMD (bundle check || (gem install bundler && bundle install)) && bundle exec rake

scenarios/rails60.gemfile

@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+gem "rails", github: "rails/rails"
+gem "mongoid"
+gem "sqlite3"
+
+gemspec :path => "../"

spec/railtie_spec.rb

@@ -2,7 +2,8 @@
 
 require 'spec_helper'
 
-if (Rails::VERSION::MAJOR == 5 && Rails::VERSION::MINOR >= 1)
+if (Rails::VERSION::MAJOR == 5 && Rails::VERSION::MINOR >= 1) ||
+    Rails::VERSION::MAJOR >= 6
   require 'rails/command'
   require 'rails/commands/console/console_command'
 else

spec/show_models_spec.rb

@@ -58,7 +58,7 @@ MODELS
       expected_output += mongoid_models
     end
 
-    if Rails.version.to_s =~ /^5/
+    if Rails::VERSION::MAJOR >= 5
       expected_output = internal_models + expected_output
     end
 

spec/show_routes_spec.rb

@@ -10,20 +10,20 @@ describe "show-routes" do
   it "should print a list of routes" do
     output = mock_pry('show-routes', 'exit-all')
 
-    output.must_match %r{^edit_pokemon GET    /pokemon/edit}
+    output.must_match %r{edit_pokemon GET    /pokemon/edit}
   end
 
   it "should print a list of routes which include grep option" do
     output = mock_pry('show-routes -G edit', 'exit-all')
 
-    output.must_match %r{^edit_pokemon GET    /pokemon/edit}
-    output.must_match %r{^   edit_beer GET    /beer/edit}
+    output.must_match %r{edit_pokemon GET    /pokemon/edit}
+    output.must_match %r{   edit_beer GET    /beer/edit}
   end
 
   it "should filter list based on multiple grep options" do
     output = mock_pry('show-routes -G edit -G pokemon', 'exit-all')
 
-    output.must_match %r{^edit_pokemon GET    /pokemon/edit}
+    output.must_match %r{edit_pokemon GET    /pokemon/edit}
     output.wont_match %r{edit_beer}
   end
 end