Method Lookup

pkg/fs/root.go:108–150

(ctx context.Context, name string)

}

func (n *root) Lookup(ctx context.Context, name string) (fs.Node, error) {
	Logger.Printf("root.Lookup(%s)", name)
	switch name {
	case ".quitquitquit":
		log.Fatalf("Shutting down due to root .quitquitquit lookup.")
	case "WELCOME.txt":
		return staticFileNode("Welcome to PerkeepFS.\n\nMore information is available in the pk-mount documentation.\n\nSee https://perkeep.org/cmd/pk-mount/ , or run 'go doc perkeep.org/cmd/pk-mount'.\n"), nil
	case "recent":
		return n.getRecentDir(), nil
	case "tag", "date":
		return notImplementDirNode{}, nil
	case "at":
		return n.getAtDir(), nil
	case "roots":
		return n.getRootsDir(), nil
	case "versions":
		return n.getVersionsDir(), nil
	case "sha1-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx":
		return notImplementDirNode{}, nil
	case "sha224-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx":
		return notImplementDirNode{}, nil
	case ".camli_fs_stats":
		return statsDir{}, nil
	case "mach_kernel", ".hidden", "._.":
		// Just quiet some log noise on OS X.
		return nil, fuse.ENOENT
	}

	if br, ok := blob.Parse(name); ok {
		Logger.Printf("Root lookup of blobref. %q => %v", name, br)
		node := &node{fs: n.fs, blobref: br}
		if _, err := node.schema(ctx); err != nil {
			if os.IsNotExist(err) {
				return nil, fuse.ENOENT
			} else {
				return nil, handleEIOorEINTR(err)
			}
		}
		return node, nil
	}
	Logger.Printf("Bogus root lookup of %q", name)
	return nil, fuse.ENOENT
}