return nil
	}

	if n.NSQDAddress.IsEmpty() {
		return errors.New("empty nsqdAddress")
	}

	if n.Topic == "" {
		return errors.New("empty topic")
	}
	if n.QueueDir != "" {
		if !filepath.IsAbs(n.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

	return nil
}

// NSQTarget - NSQ target.
type NSQTarget struct {
	initOnce once.Init

	id         event.TargetID

	return v, ok
}

// Path returns the absolute path in the host operating system for a
// script-based (generally slash-separated and relative) path.
func (s *State) Path(path string) string {
	if filepath.IsAbs(path) {
		return filepath.Clean(path)
	}
	return filepath.Join(s.pwd, path)
}

// Setenv sets the value of the environment variable in s named by the key.
func (s *State) Setenv(key, value string) error {

	dst, err := os.Readlink(linkPath)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%s links to %s\n", filepath.Base(linkPath), dst)

	var dstAbs string
	if filepath.IsAbs(dst) {
		dstAbs = dst
	} else {
		// Symlink targets are relative to the directory containing the link.
		dstAbs = filepath.Join(filepath.Dir(linkPath), dst)
	}

// Validate WebhookArgs fields
func (w WebhookArgs) Validate() error {
	if !w.Enable {
		return nil
	}
	if w.Endpoint.IsEmpty() {
		return errors.New("endpoint empty")
	}
	if w.QueueDir != "" {
		if !filepath.IsAbs(w.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}
	if w.ClientCert != "" && w.ClientKey == "" || w.ClientCert == "" && w.ClientKey != "" {

		}
		id = bp.ImportPath

	case build.IsLocalImport(path):
		// "./x" -> "/this/directory/x.ext", "/this/directory/x"
		noext = filepath.Join(srcDir, path)
		id = noext

	case filepath.IsAbs(path):
		// for completeness only - go/build.Import
		// does not support absolute imports
		// "/x" -> "/x.ext", "/x"
		noext = path
		id = path
	}

	if false { // for debugging
		if path != id {

		return f(s)
	}
	return filepath.SplitList(s)
}

// isAbsPath calls ctxt.IsAbsPath (if not nil) or else filepath.IsAbs.
func (ctxt *Context) isAbsPath(path string) bool {
	if f := ctxt.IsAbsPath; f != nil {
		return f(path)
	}
	return filepath.IsAbs(path)
}

// isDir calls ctxt.IsDir (if not nil) or else uses os.Stat.
func (ctxt *Context) isDir(path string) bool {

func pathToolchains(ctx context.Context) ([]string, error) {
	have := make(map[string]bool)
	var list []string
	for _, dir := range pathDirs() {
		if dir == "" || !filepath.IsAbs(dir) {
			// Refuse to use local directories in $PATH (hard-coding exec.ErrDot).
			continue
		}
		entries, err := os.ReadDir(dir)
		if err != nil {
			continue
		}
		for _, de := range entries {

	// \\?\UNC\server\share paths because the rules for doing so
	// are less well-specified.
	if len(path) >= 2 && path[:2] == `\\` {
		// Don't canonicalize UNC paths.
		return path
	}
	if !filepath.IsAbs(path) {
		// Relative path
		return path
	}

	const prefix = `\\?`

	pathbuf := make([]byte, len(prefix)+len(path)+len(`\`))
	copy(pathbuf, prefix)
	n := len(path)
	r, w := 0, len(prefix)

		pkgPath = filepath.Join(testSrcdir, testWorkspace, pkgPath)
	}

	// If the path is still not absolute, something other than bazel compiled
	// with -trimpath.
	if !filepath.IsAbs(pkgPath) {
		return "", fmt.Errorf("can't construct an absolute path from %q", pkgPath)
	}

	t.Logf("Resolved testserver package path to: %q", pkgPath)

	return pkgPath, nil

			}
			missingBinaries = true
			continue
		}
		if m.Unsymbolizable() {
			// Skip well-known system mappings
			continue
		}
		if m.BuildID == "" {
			if u, err := url.Parse(m.File); err == nil && u.IsAbs() && strings.Contains(strings.ToLower(u.Scheme), "http") {
				// Skip mappings pointing to a source URL
				continue
			}
		}

		name := filepath.Base(m.File)
		if m.BuildID != "" {