pathutil

func RelTo ¶

func RelTo(root, abs string) (string, bool)

RelTo returns abs expressed relative to root using forward slashes, which is the form every node id and report path uses.

ok is false when abs lies outside root: a coverage report may legitimately mention files the scan did not cover (a monorepo sibling, a linked package), and those must be dropped rather than reported under a "../" path.

Coverage tools report resolved paths, while the scan root is whatever the user typed, so the two can name the same directory through different symlink chains — on macOS `/tmp` is a symlink to `/private/tmp`, and a checkout can be reached through a linked workspace directory. When the literal comparison fails, both paths are resolved and compared again.