Dynamite the Monoliths! Taming dependency cycles in a 20-year old...
summary
A Perl script analyzes a 20‑year‑old Audacity codebase (~280,000 LOC, tens of millions of downloads) to find and collapse dependency cycles so they can be broken. It parses includes, runs a strongly connected components algorithm, squashes them into a quotient graph, removes redundant edges and renders with Graphviz + Perl, while emitting a stderr trace of direct dependencies that names the exact surprising include to change; output drives concrete refactor commits during a release.
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chapters (9)
- 0:00Introduction
- 0:50My projects
- 2:28Noncyclic
- 3:38Unhelpful picture
- 3:52Simplify the picture
- 4:18Clear as mud
- 4:37Where do I start
- 5:10Transformations
- 5:20Outro
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