aboutsummaryrefslogtreecommitdiffstats
path: root/railties/lib/rails/generators/app_base.rb
blob: 184c59cb902bbe022cde7f79f43a8abd4197640f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
require 'digest/md5'
require 'securerandom'
require 'active_support/core_ext/string/strip'
require 'rails/version' unless defined?(Rails::VERSION)
require 'rbconfig'
require 'open-uri'
require 'uri'

module Rails
  module Generators
    class AppBase < Base
      DATABASES = %w( mysql oracle postgresql sqlite3 frontbase ibm_db sqlserver )
      JDBC_DATABASES = %w( jdbcmysql jdbcsqlite3 jdbcpostgresql jdbc )
      DATABASES.concat(JDBC_DATABASES)

      attr_accessor :rails_template
      add_shebang_option!

      argument :app_path, type: :string

      def self.add_shared_options_for(name)
        class_option :builder,            type: :string, aliases: '-b',
                                          desc: "Path to a #{name} builder (can be a filesystem path or URL)"

        class_option :template,           type: :string, aliases: '-m',
                                          desc: "Path to an #{name} template (can be a filesystem path or URL)"

        class_option :skip_gemfile,       type: :boolean, default: false,
                                          desc: "Don't create a Gemfile"

        class_option :skip_bundle,        type: :boolean, default: false,
                                          desc: "Don't run bundle install"

        class_option :skip_git,           type: :boolean, aliases: '-G', default: false,
                                          desc: 'Skip .gitignore file'

        class_option :skip_keeps,         type: :boolean, default: false,
                                          desc: 'Skip source control .keep files'

        class_option :skip_active_record, type: :boolean, aliases: '-O', default: false,
                                          desc: 'Skip Active Record files'

        class_option :skip_sprockets,     type: :boolean, aliases: '-S', default: false,
                                          desc: 'Skip Sprockets files'

        class_option :database,           type: :string, aliases: '-d', default: 'sqlite3',
                                          desc: "Preconfigure for selected database (options: #{DATABASES.join('/')})"

        class_option :javascript,         type: :string, aliases: '-j', default: 'jquery',
                                          desc: 'Preconfigure for selected JavaScript library'

        class_option :skip_javascript,    type: :boolean, aliases: '-J', default: false,
                                          desc: 'Skip JavaScript files'

        class_option :skip_index_html,    type: :boolean, aliases: '-I', default: false,
                                          desc: 'Skip public/index.html and app/assets/images/rails.png files'

        class_option :dev,                type: :boolean, default: false,
                                          desc: "Setup the #{name} with Gemfile pointing to your Rails checkout"

        class_option :edge,               type: :boolean, default: false,
                                          desc: "Setup the #{name} with Gemfile pointing to Rails repository"

        class_option :skip_test_unit,     type: :boolean, aliases: '-T', default: false,
                                          desc: 'Skip Test::Unit files'

        class_option :help,               type: :boolean, aliases: '-h', group: :rails,
                                          desc: 'Show this help message and quit'
      end

      def initialize(*args)
        @original_wd = Dir.pwd
        super
        convert_database_option_for_jruby
      end

    protected

      def builder
        @builder ||= begin
          if path = options[:builder]
            if URI(path).is_a?(URI::HTTP)
              contents = open(path, "Accept" => "application/x-thor-template") {|io| io.read }
            else
              contents = open(File.expand_path(path, @original_wd)) {|io| io.read }
            end

            prok = eval("proc { #{contents} }", TOPLEVEL_BINDING, path, 1)
            instance_eval(&prok)
          end

          builder_class = get_builder_class
          builder_class.send(:include, ActionMethods)
          builder_class.new(self)
        end
      end

      def build(meth, *args)
        builder.send(meth, *args) if builder.respond_to?(meth)
      end

      def create_root
        self.destination_root = File.expand_path(app_path, destination_root)
        valid_const?

        empty_directory '.'
        set_default_accessors!
        FileUtils.cd(destination_root) unless options[:pretend]
      end

      def apply_rails_template
        apply rails_template if rails_template
      rescue Thor::Error, LoadError, Errno::ENOENT => e
        raise Error, "The template [#{rails_template}] could not be loaded. Error: #{e}"
      end

      def set_default_accessors!
        self.rails_template = case options[:template]
          when /^https?:\/\//
            options[:template]
          when String
            File.expand_path(options[:template], Dir.pwd)
          else
            options[:template]
        end
      end

      def database_gemfile_entry
        options[:skip_active_record] ? "" : "gem '#{gem_for_database}'"
      end

      def include_all_railties?
        !options[:skip_active_record] && !options[:skip_test_unit] && !options[:skip_sprockets]
      end

      def comment_if(value)
        options[value] ? '# ' : ''
      end

      def rails_gemfile_entry
        if options.dev?
          <<-GEMFILE.strip_heredoc
            gem 'rails',     path: '#{Rails::Generators::RAILS_DEV_PATH}'
            gem 'journey',   github: 'rails/journey'
            gem 'arel',      github: 'rails/arel'
            gem 'activerecord-deprecated_finders', github: 'rails/activerecord-deprecated_finders'
          GEMFILE
        elsif options.edge?
          <<-GEMFILE.strip_heredoc
            gem 'rails',     github: 'rails/rails'
            gem 'journey',   github: 'rails/journey'
            gem 'arel',      github: 'rails/arel'
            gem 'activerecord-deprecated_finders', github: 'rails/activerecord-deprecated_finders'
          GEMFILE
        else
          <<-GEMFILE.strip_heredoc
            gem 'rails', '#{Rails::VERSION::STRING}'

            # Bundle edge Rails instead:
            # gem 'rails', github: 'rails/rails'
          GEMFILE
        end
      end

      def gem_for_database
        # %w( mysql oracle postgresql sqlite3 frontbase ibm_db sqlserver jdbcmysql jdbcsqlite3 jdbcpostgresql )
        case options[:database]
        when "oracle"         then "ruby-oci8"
        when "postgresql"     then "pg"
        when "frontbase"      then "ruby-frontbase"
        when "mysql"          then "mysql2"
        when "sqlserver"      then "activerecord-sqlserver-adapter"
        when "jdbcmysql"      then "activerecord-jdbcmysql-adapter"
        when "jdbcsqlite3"    then "activerecord-jdbcsqlite3-adapter"
        when "jdbcpostgresql" then "activerecord-jdbcpostgresql-adapter"
        when "jdbc"           then "activerecord-jdbc-adapter"
        else options[:database]
        end
      end

      def convert_database_option_for_jruby
        if defined?(JRUBY_VERSION)
          case options[:database]
          when "oracle"     then options[:database].replace "jdbc"
          when "postgresql" then options[:database].replace "jdbcpostgresql"
          when "mysql"      then options[:database].replace "jdbcmysql"
          when "sqlite3"    then options[:database].replace "jdbcsqlite3"
          end
        end
      end

      def assets_gemfile_entry
        return if options[:skip_sprockets]

        gemfile = if options.dev? || options.edge?
          <<-GEMFILE
            # Gems used only for assets and not required
            # in production environments by default.
            group :assets do
              gem 'sprockets-rails', github: 'rails/sprockets-rails'
              gem 'sass-rails',   github: 'rails/sass-rails'
              gem 'coffee-rails', github: 'rails/coffee-rails'

              # See https://github.com/sstephenson/execjs#readme for more supported runtimes
              #{javascript_runtime_gemfile_entry}
              gem 'uglifier', '>= 1.0.3'
            end
          GEMFILE
        else
          <<-GEMFILE
            # Gems used only for assets and not required
            # in production environments by default.
            group :assets do
              gem 'sprockets-rails', github: 'rails/sprockets-rails'
              gem 'sass-rails',   '~> 4.0.0.beta'
              gem 'coffee-rails', '~> 4.0.0.beta'

              # See https://github.com/sstephenson/execjs#readme for more supported runtimes
              #{javascript_runtime_gemfile_entry}
              gem 'uglifier', '>= 1.0.3'
            end
          GEMFILE
        end

        gemfile.strip_heredoc.gsub(/^[ \t]*$/, '')
      end

      def javascript_gemfile_entry
        "gem '#{options[:javascript]}-rails'" unless options[:skip_javascript]
      end

      def javascript_runtime_gemfile_entry
        if defined?(JRUBY_VERSION)
          "gem 'therubyrhino'\n"
        else
          "# gem 'therubyracer', platforms: :ruby\n"
        end
      end

      def bundle_command(command)
        say_status :run, "bundle #{command}"

        # We are going to shell out rather than invoking Bundler::CLI.new(command)
        # because `rails new` loads the Thor gem and on the other hand bundler uses
        # its own vendored Thor, which could be a different version. Running both
        # things in the same process is a recipe for a night with paracetamol.
        #
        # We use backticks and #print here instead of vanilla #system because it
        # is easier to silence stdout in the existing test suite this way. The
        # end-user gets the bundler commands called anyway, so no big deal.
        #
        # We unset temporary bundler variables to load proper bundler and Gemfile.
        #
        # Thanks to James Tucker for the Gem tricks involved in this call.
        _bundle_command = Gem.bin_path('bundler', 'bundle')

        require 'bundler'
        Bundler.with_clean_env do
          print `"#{Gem.ruby}" "#{_bundle_command}" #{command}`
        end
      end

      def run_bundle
        bundle_command('install') unless options[:skip_gemfile] || options[:skip_bundle] || options[:pretend]
      end

      def empty_directory_with_keep_file(destination, config = {})
        empty_directory(destination, config)
        keep_file(destination)
      end

      def keep_file(destination)
        create_file("#{destination}/.keep") unless options[:skip_keeps]
      end
    end
  end
end