Ruby Call Graph

Call-graph makes a call graph among methods of a single Ruby file.
I made it to help me orient myself in unfamiliar legacy code and to help identify cohesive parts that could be split out.
Yes, it is quick and dirty.

Example

One file in YaST has around 2700 lines and 73 methods. The call graph below was made with

$ ./call-graph ../yast/packager/src/modules/Packages.rb
$ dot -Tpng -oPackages.png ../yast/packager/src/modules/Packages.dot

If the resulting size is too big, use ImageMagick:

$ convert Packages.png -resize 1200 Packages-small.png

Packages.png, an example output

Requirements

• Ruby
• parser gem
• Graphviz

License

MIT