Forgotten Histories

Transcript

1. SUPRIYA SRIVATSA | SOFTWARE ENGINEER | @SUPRIYASRIVATSA Forgotten Histories Hidden Insights Lying Within Your Git Repository
2. Codebase should be viewed not as the ultimate truth
3. Codebase should be viewed not as the ultimate truth, but as a story of evolutions.
6. There is more to code than code.
7. There is more to code than code. What
8. When There is more to code than code. Who What
9. When A time dimension Who A social/organisational dimension There is more to code than code.
10. Tech debt is not just technical.
11. Behavioural Code Analysis
17. BRING OUT YOUR CODEBASE!
18. BRING OUT YOUR CODEBASE!
19. BRING OUT YOUR CODEBASE!
20. http://adamtornhill.com/code/maatdistro.htm GET CODE MAAT
21. GIT LOGS $ git log --all --numstat --date=short --pretty=format:'--%h-- %ad--%aN' --no-renames --after=YYYY-MM-DD > log.log
22. CHANGE FREQUENCY $ java -jar code-maat-1.0-standalone.jar -c git2 -l log.log -a revisions -r 50 > <filename>.csv git log --format=format: --name-only --after=2019-12-01 | sort | uniq -c | sort -r | head -50
24. Halstead Complexity Measuring Complexity Cyclomatic Complexity
25. Halstead Complexity Measuring Complexity Lines of code, Indentation based complexity Cyclomatic Complexity
26. Most active parts of code are often most complex parts of code.
27. - Low cohesion Most active parts of code are often most complex parts of code.
28. - Low cohesion - Developer congestion Most active parts of code are often most complex parts of code.
29. - Low cohesion - Developer congestion REFACTOR HOTSPOT Most active parts of code are often most complex parts of code.
30. HOTSPOT A complicated piece of code you have to work with often
31. Change Coupling Files that change together
32. CHANGE COUPLING - The files change together in at least X commits.
 - The files change together in at least Y% of the total commits to each file.
33. CHANGE COUPLING $ java -jar code-maat-1.0-standalone.jar -c git2 -l log.log -a coupling -r 30 > <filename>.csv
34. Refactor Hotspots Change Coupling
35. Refactor Hotspots Change Coupling Code Age
36. Refactor Hotspots Change Coupling Code Age Knowledge Maps
43. Software Design X-Rays Adam Tornhill
44. Supriya Srivatsa @SupriyaSrivatsa