taiki-e/cargo-llvm-cov — Cargo subcommand to easily use LLVM source-based code coverage (-C instrument-coverage).

Description and use

taiki‑e’s **cargo‑llvm‑cov** is a lightweight Cargo subcommand that streamlines the use of LLVM’s source‑based code‑coverage instrumentation (-C instrument-coverage). It automatically builds your Rust project with the required LLVM flags, runs the test suite, and generates human‑readable coverage reports in formats such as HTML or LCOV, making coverage analysis fast and hassle‑free. The tool is open‑source, actively maintained, and fits naturally into typical Rust DevTools workflows.

Problem

taiki-e/cargo-llvm-cov helps engineers save time in daily development and review loops.

Outcome

Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.

Workflow

• speed up developer workflows
• automate local engineering tasks
• improve CI feedback

Evidence

Cargo subcommand to easily use LLVM source-based code coverage (-C instrument-coverage).

Source