Uses a project or repository's history to plot user contributions, displaying an elegant, colored graph of the file arborescence.
After running it on quite different projects...
- Python/Bash CI/Jenkins scripts
- Qt apps: GoldenDict, Psi+
- PHP website: Shaarli
...watching some vids on teh intartubez:
It allows to arbitrary spot some interesting implementation aspects (sorted by descending impact):
- language-dependent trees (oh hai Java packages ^^)
- framework-dependent trees
- project-management method (none, Agile, TDD)
Having a graphical tool also quickly shows:
- the overall structure of the project (a bit cooler than a simple $ tree, way quicker than loading the project on an IDE)
- the repartition of files (by extensions)
- who are the most active contributors
- what are the most modified files over time
- who does what: additions, deletions, refactoring
Some more CI-related matters:
- are there any tests?
- what is the source code / test code ratio? (we could expect a project/lib with N modules to have at least N test modules)
- who initiates / implements / optimizes test code?