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Continuous inspection with Sonar
- 1. JEE Conf Continuous Inspection Fight back the 7 deadly sins of the developer! Olivier Gaudin olivier.gaudin@sonarsource.com @gaudol
- 2. Back in oldtimes
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- 4. The super hero Aufin fond de l'Univers, à des années et des années-lumière de la Terre, Veille celui que le gouvernement intersidéral appelle quand il n'est plus Capable de trouver une solution à ses problèmes, quand il ne reste plus Aucun espoir : le Capitaine FLAM !
- 5. This is mytoy
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- 7. Industrialisation has enteredthe game... ● Project under version control ● Project under continuous integration ● Technical and functional traceability
- 8. What is themission of today's developer ? ?
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- 10. (Almost) Everything ismaintenance ! Creation of an application Maintenance of an application
- 11. Nothing is moreimportant than code But source code is nothing alone
- 12. Old times areover
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- 16. Software factories evolve Makefile Issue Tracker IDE Continuous Refactoring Inspection VI / SCM Continuous Unit Tests Emacs Integration
- 17. Pushed by requirements ConfigurationManager ● No change should be authorized to production system without being in configuration manager ● The complete version of an application should be found easily in the source control manager
- 18. Pushed by requirements ContinuousIntegration ● Projects in SCM can be built by anybody at any time ● Executing unit tests is part of the build process ● The output of a build is an artifact “ready to be used” ● If one of those requirements is not fulfilled, nothing is more important than fixing it
- 19. Pushed by requirements ContinuousInspection ● Any new code should ship with corresponding unit tests ● No new method should exceed a pre-defined level of complexity ● No cycle between packages should be introduced ● ...
- 20. BUT... Maturity steps shouldbe followed ● Insuring technical traceability Configuration Manager ● Insuring functional traceability Issue Manager ● Insuring build stability Continuous Integration ● Insuring source code quality Continuous Inspection (Sonar)
- 21. The end doesnot justify the means Doing the right software Doing the software right
- 22. What is quality? « A well-written program is a program where the cost of implementing a feature is constant throughout the program's lifetime. » Itay Maman
- 23. How to measurequality ?
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- 25. The 7 deadlysins of the developer Sins Technical Debt
- 26. The 7 deadlysins ? Applied to source code ● ? ● ? ● ? ● ? ● ? ● ? ● ?
- 27. The 7 deadlysins ? Applied to source code ● Duplications ● Bad distribution of complexity ● Spaghetti Design ● Lack of unit tests ● No coding standards ● Potential bugs ● Not enough or too many comments
- 28. The mission ofSonar Declare open the hunt of the developer's 7 deadly sins
- 29. The mission ofSonar More seriously Augment everybody's capability to reduce, reuse and recycle source code
- 30. Sonar: a reality 6,000+ downloads per month (300 in 2008) 1,300+ subscribers to mailing list 60 plugins in the open source forge 150,000 downloads X?,000 instances in the world
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- 32. Sonar is onlya tool ! ● What should happen in case new defects are added ? ● How, when and who should make quality standards evolve ? ● How to train new joiners ? ● Any measure reported must be analysed
- 33. The « Done, Done,Done, Done » ● Developed ● Tested ● Approved by the « Product Owner » ● Technical debt under control
- 34. Roadmap 2012 Review Expand rules Process and metrics Governance dashboards Sonar IDE Quality of Track changes Unit Tests PL/SQL Code Churn Developer Cockpit Sonar-cpd VB .NET ABAP 2.0 C++
- 35. Questions & Answers Thank You ! http://www.sonarsource.org http://www.sonarsource.com