Show HN: Cargo-affect – Plan affected Rust workspace tests from a Git diff

Category: devtools

Tags: rust, testing, ci, workspace, git-diff

Score: 6.5/10 (Innovation: 6, Technical: 6, Documentation: 7, Utility: 7)

cargo-affect is a Rust CLI tool that maps git diffs to affected workspace packages and reverse dependencies, enabling selective test execution in CI. It's interesting because it offers a flexible policy file and CI profile system, filling a specific gap for large Rust monorepos.

Target audience: backend devs, devops

Repository: https://github.com/lightsofapollo/cargo-affect · Rust · MIT

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