Function matchVersion

core/schema/modulesource.go:3561–3578

Match a version string in a list of versions with optional subPath e.g. github.com/foo/daggerverse/mod@mod/v1.0.0 e.g. github.com/foo/mod@v1.0.0 TODO smarter matching logic, e.g. v1 == v1.0.0

(versions []string, match, subPath string)

// e.g. github.com/foo/mod@v1.0.0
// TODO smarter matching logic, e.g. v1 == v1.0.0
func matchVersion(versions []string, match, subPath string) (string, error) {
	// If theres a subPath, first match on {subPath}/{match} for monorepo tags
	if subPath != "/" {
		rawSubPath, _ := strings.CutPrefix(subPath, "/")
		matched, err := matchVersion(versions, fmt.Sprintf("%s/%s", rawSubPath, match), "/")
		// no error means there's a match with subpath/match
		if err == nil {
			return matched, nil
		}
	}

	for _, v := range versions {
		if v == match {
			return v, nil
		}
	}
	return "", fmt.Errorf("unable to find version %s", match)
}