Python, DOT, and Visualising Legacy Code The Lazy Way

Presentation to the London Python Code dojo in 2011.

Transcript

1. Python, DOT and Visualising Legacy Code The Lazy Way (C) John Chandler 2011
2. Legacy PHP Code! Noooooooooooooo!!!!
3. Deep Breaths. Visualise the Code.
4. Laziness Part 1: Use Python to Analyse Dependencies
5. Write a PHP Parser in Python? Or use a regular expression... (include|require)(?:_once)?[ (]["']([^"']+)["']
6. Laziness Part 2: Use Graphviz to Draw The Diagram
7. Graphviz supports DOT. DOT is a graphing mini-language
8. digraph foo { node1 [label=“Node 1”]; node2 [label=”Node 2”]; node1 -> node2; }
9. $ dot -Tpng -O foo.dot
10. WTF. Looks like some refactoring to do
11. Source is available under GPL v3 from: http://www.bitbucket.org/metaljoe/qadpid