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= RailRoad_Xing Fork of http://railroad.rubyforge.org/ to add support for Merb and DataMapper. RailRoad generates models and controllers diagrams in DOT language for a Rails or Merb application. = Usage Run RailRoad on the Rails or Merbs application's root directory. You can redirect its output to a .dot file or pipe it to the dot or neato utilities to produce a graphic. Model diagrams are intended to be processed using dot and controller diagrams are best processed using neato. railroad [options] command == Options Common options: -b, --brief Generate compact diagram (no attributes nor methods) -e, --exclude file1[,fileN] Exclude given files -i, --inheritance Include inheritance relations -l, --label Add a label with diagram information (type, date, migration, version) -o, --output FILE Write diagram to file FILE -v, --verbose Enable verbose output (produce messages to STDOUT) Models diagram options: -a, --all Include all models (not only ActiveRecord::Base derived) --hide-magic Hide magic field names --hide-types Hide attributes type -j, --join Concentrate edges -m, --modules Include modules -p, --plugins-models Include plugins models -t, --transitive Include transitive associations (through inheritance) Controllers diagram options: --hide-public Hide public methods --hide-protected Hide protected methods --hide-private Hide private methods Other options: -h, --help Show this message --version Show version and copyright == Commands -M, --models Generate models diagram -C, --controllers Generate controllers diagram -A, --aasm Generate "acts as state machine" diagram (Rails only) == Examples railroad -o models.dot -M Produces a models diagram to the file 'models.dot' railroad -a -i -o full_models.dot -M Models diagram with all classes showing inheritance relations railroad -M | dot -Tsvg > models.svg Model diagram in SVG format railroad -C | neato -Tpng > controllers.png Controller diagram in PNG format railroad -h Shows usage help = Processing DOT files To produce a PNG image from model diagram generated by RailRoad you can issue the following command: dot -Tpng models.dot > models.png If you want to do the same with a controller diagram, use neato instead of dot: neato -Tpng controllers.dot > controllers.png If you want to produce SVG (vectorial, scalable, editable) files, you can do the following: dot -Tsvg models.dot > models.svg neato -Tsvg controllers.dot > controllers.svg Important: There is a bug in Graphviz tools when generating SVG files that cause a text overflow. You can solve this problem editing (with a text editor, not a graphical SVG editor) the file and replacing around line 12 "font-size:14.00;" by "font-size:11.00;", or by issuing the following command (see "man sed"): sed -i 's/font-size:14.00/font-size:11.00/g' file.svg Note: For viewing and editing SVG there is an excellent opensource tool called Inkscape (similar to Adobe Illustrator. For DOT processing you can also use Omnigraffle (on Mac OS X). = RailRoad as a rake task (Thanks to Thomas Ritz, http://www.galaxy-ritz.de ,for the code.) In your Rails application, put the following rake tasks into 'lib/task/diagrams.rake': namespace :doc do namespace :diagram do task :models do sh "railroad -i -l -a -m -M | dot -Tsvg | sed 's/font-size:14.00/font-size:11.00/g' > doc/models.svg" end task :controllers do sh "railroad -i -l -C | neato -Tsvg | sed 's/font-size:14.00/font-size:11.00/g' > doc/controllers.svg" end end task :diagrams => %w(diagram:models diagram:controllers) end Then, 'rake doc:diagrams' produces 'doc/models.svg' and 'doc/controllers.svg'. = Requirements RailRoad has been tested with Ruby 1.8.5 and Rails 1.1.6 to 1.2.3 applications. There is no additional requirements (nevertheless, all your Rails application requirements must be installed). RailRoad has been tested with Merb 1.0.4 and DataMapper 0.9.7. In order to view/export the DOT diagrams, you'll need the processing tools from Graphviz. = Website and Project Home original: http://railroad.rubyforge.org fork: http://github.com/royw/railroad_xing = License RailRoad is distributed under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. = Authors http://railroad.rubyforge.org Javier Smaldone (javier -at- smaldone -dot- com -dot- ar, http://blog.smaldone.com.ar ) http://github.com/royw/railroad_xing Roy Wright email@example.com