Function libraryDirectorySymlinks

internal/ebutil/libs.go:42–74

libraryDirectorySymlinks returns a mapping of each library (basename) with a list of their symlinks (basename). Libraries with no symlinks do not appear in the mapping.

(m mounter, libDir string)

// list of their symlinks (basename). Libraries with no symlinks do not appear
// in the mapping.
func libraryDirectorySymlinks(m mounter, libDir string) (map[string][]string, error) {
	des, err := m.ReadDir(libDir)
	if err != nil {
		return nil, fmt.Errorf("read directory %s: %w", libDir, err)
	}

	libsSymlinks := make(map[string][]string)
	for _, de := range des {
		if de.IsDir() {
			continue
		}

		if de.Type()&os.ModeSymlink != os.ModeSymlink {
			// Not a symlink. Skip.
			continue
		}

		symlink := filepath.Join(libDir, de.Name())
		path, err := m.EvalSymlinks(symlink)
		if err != nil {
			return nil, fmt.Errorf("eval symlink %s: %w", symlink, err)
		}

		path = filepath.Base(path)
		if _, ok := libsSymlinks[path]; !ok {
			libsSymlinks[path] = make([]string, 0, 1)
		}

		libsSymlinks[path] = append(libsSymlinks[path], de.Name())
	}

	return libsSymlinks, nil
}

// moveLibSymlinks moves a list of symlinks from source to destination directory.
func moveLibSymlinks(m mounter, symlinks []string, srcDir, destDir string) error {