Class: RefineryEngineGenerator

Inherits:
Rails::Generators::NamedBase
  • Object
show all
Includes:
Rails::Generators::Migration
Defined in:
lib/generators/refinery_engine/refinery_engine_generator.rb

Instance Method Summary collapse

Instance Method Details

#generate ⇒ Object 



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
 
# File 'lib/generators/refinery_engine/refinery_engine_generator.rb', line 12

def generate
  clash_file = Pathname.new(File.expand_path('../clash_keywords.yml', __FILE__))
  clash_keywords = File.open(clash_file) { |f| doc = YAML.load(f) }
  if clash_keywords.member?(singular_name.downcase)
    puts "Please choose a different name.  Generated code would fail for class '#{singular_name}'"
    puts ""
    exit(1)
  end

  if singular_name == plural_name
    puts ""
    if singular_name.singularize != singular_name
      puts "Please specify the singular name '#{singular_name.singularize}' instead of '#{plural_name}'."
    else
      puts "The engine name you specified will not work as the singular name is equal to the plural name."
    end
    puts ""
    exit(1)
  end

  unless attributes.empty? and self.behavior != :revoke
    if (engine = attributes.detect{|a| a.type.to_s == 'engine'}).present? and attributes.reject!{|a| a.type.to_s == 'engine'}.present?
      engine = engine.name.pluralize
    end

    Pathname.glob(Pathname.new(self.class.source_root).join('**', '**')).reject{|f| f.directory?}.sort.each do |path|
      unless (engine_path = engine_path_for(path, engine)).nil?
        template path, engine_path
      end
    end

    if engine.present?
      # go through all of the temporary files and merge what we need into the current files.
      tmp_directories = []
      Dir.glob(File.expand_path('../templates/{config/locales/*.yml,config/routes.rb,features/support/paths.rb}', __FILE__), File::FNM_DOTMATCH).sort.each do |path|
        # get the path to the current tmp file.
        new_file_path = Rails.root.join(engine_path_for(path, engine))
        tmp_directories << Pathname.new(new_file_path.to_s.split(File::SEPARATOR)[0..-2].join(File::SEPARATOR)) # save for later

        # get the path to the existing file and perform a deep hash merge.
        current_path = Pathname.new(new_file_path.to_s.split(File::SEPARATOR).reject{|f| f == 'tmp'}.join(File::SEPARATOR))
        new_contents = nil
        if new_file_path.to_s =~ %r{.yml$}
          # merge translation files together.
          new_contents = YAML::load(new_file_path.read).deep_merge(YAML::load(current_path.read)).to_yaml
        elsif new_file_path.to_s =~ %r{/routes.rb$}
          # append any routes from the new file to the current one.
          routes_file = [(file_parts = current_path.read.to_s.split("\n")).first]
          routes_file += file_parts[1..-2]
          routes_file += new_file_path.read.to_s.split("\n")[1..-2]
          routes_file << file_parts.last
          new_contents = routes_file.join("\n")
        elsif new_file_path.to_s =~ %r{/features/support.*paths.rb$}
          # ugh, please FIXME -- requires deep and intimate knowledge of the contents.
          paths_file = (file_parts = current_path.read.to_s.split("\n"))[0..4]
          paths_file << file_parts[5..-8].join("\n")

          # get the parts of the new file that are relevant
          new_file_parts = new_file_path.read.split("\n")
          paths_file << new_file_parts[5..-4].join("\n")
          paths_file << file_parts[-3..-1]

          # join it all together
          new_contents = paths_file.join("\n")
        end
        # write to current file the merged results.
        current_path.open('w+') { |f| f.puts new_contents } unless new_contents.nil?
      end

      if File.exist?(lib_file = engine_path_for(File.expand_path("../templates/lib/refinerycms-#{engine.pluralize}.rb", __FILE__), engine))
        append_file lib_file, "\nrequire File.expand_path('../refinerycms-#{plural_name}', __FILE__)"
      end

      tmp_directories.uniq.each{|d| d.rmtree unless d.nil? or !d.exist?}
    end

    # Update the gem file
    if self.behavior != :revoke and !self.options['pretend']
      unless Rails.env.test?
        Rails.root.join('Gemfile').open('a') do |f|
          f.write "\ngem 'refinerycms-#{plural_name}', '1.0', :path => 'vendor/engines'"
        end unless engine.present?

        puts "------------------------"
        puts "Now run:"
        puts "bundle install"
        unless engine.present?
          puts "rails generate refinerycms_#{plural_name}"
        else
          puts "rails generate refinerycms_#{engine} #{plural_name}"
        end
        puts "rake db:migrate"
        puts "------------------------"
      end
    elsif self.behavior == :revoke
      lines = Rails.root.join('Gemfile').open('r').read.split("\n")
      Rails.root.join('Gemfile').open('w').puts(lines.reject {|l|
        l =~ %r{refinerycms-#{plural_name}}
      }.join("\n"))

      ::Refinery::Generators::Migrations.revoke({
        :pattern => File.expand_path('../templates/db/migrate/*.rb', __FILE__),
        :plural_name => plural_name,
        :singular_name => singular_name
      })
    end
  else
    puts "You must specify at least one field. For help: rails generate refinery_engine"
  end
end