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Python, DOT, and Visualising Legacy Code The La...

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Avatar for John Chandler John Chandler
June 03, 2011
Programming
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Python, DOT, and Visualising Legacy Code The Lazy Way

Presentation to the London Python Code dojo in 2011.

Avatar for John Chandler

John Chandler

June 03, 2011
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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