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@fallow-cli/fallow-cov

v0.1.10

Published

Runtime coverage analyzer sidecar for the fallow CLI; single local captures are free, continuous and multi-capture monitoring require a license

Vulnerabilities

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Links

Git

Maintainers

bartwaardenburgbartwaardenburg

Keywords

coveragedead-codefallowruntime-coveragesidecarv8-coverage

Readme

@fallow-cli/fallow-cov

Runtime coverage analyzer sidecar for the fallow CLI.

What this is

fallow-cov is a closed-source sidecar binary that powers the paid fallow health --runtime-coverage feature. It reads V8 or Istanbul coverage dumps, cross-references them with fallow's static analysis, and emits combined dead-code verdicts.

You should not invoke fallow-cov directly. Install it alongside the main fallow CLI and let fallow health --runtime-coverage spawn it.

Install

npm install -g fallow                      # public CLI, MIT
npm install -g @fallow-cli/fallow-cov      # private sidecar (paid)
fallow license activate --trial --email [email protected]
fallow health --runtime-coverage ./coverage

The postinstall step verifies that the correct platform-specific package was installed and symlinks the binary into ~/.fallow/bin/fallow-cov, where the fallow CLI looks it up by default.

Discovery precedence

The fallow CLI looks for the sidecar in this order:

  1. $FALLOW_COV_BIN (explicit override, always wins)
  2. $FALLOW_COV_BINARY_PATH (air-gap / pre-placed binary)
  3. ~/.fallow/bin/fallow-cov (installed by this package)
  4. fallow-cov on $PATH

Signature verification

Every sidecar binary is signed with the fallow binary-signing Ed25519 key (separate from the license-signing key). The fallow CLI verifies the .sig file next to the binary on every spawn; an unsigned binary will not run.

License

Proprietary. See LICENSE and https://fallow.tools/terms.