Struct unixfs_v1::dir::builder::BufferingTreeBuilder

pub struct BufferingTreeBuilder { /* fields omitted */ }

UnixFs directory tree builder which buffers entries until build() is called.

Implementations

impl BufferingTreeBuilder

pub fn new(opts: TreeOptions) -> Self

Construct a new tree builder with the given configuration.

pub fn put_link(
    &mut self,
    full_path: &str,
    target: Cid,
    total_size: u64
) -> Result<(), TreeBuildingFailed>

Registers the given path to be a link to the cid that follows. The target leaf should be either a file, directory or symlink but could of course be anything. It will be treated as an opaque link.

pub fn set_metadata(
    &mut self,
    full_path: &str,
    metadata: Metadata
) -> Result<(), TreeBuildingFailed>

Directories get “put” implicitly through the put files, and directories need to be adjusted only when wanting them to have metadata.

pub fn build(self) -> PostOrderIterator

Called to build the tree. The built tree will have the added files and their implied directory structure, along with the directory entries which were created using set_metadata. To build the whole hierarchy, one must iterate the returned iterator to completion while storing the created blocks.

Returned PostOrderIterator will use the given full_path and block_buffer to store its data during the walk. PostOrderIterator implements Iterator while also allowing borrowed access via next_borrowed.

Trait Implementations

impl Debug for BufferingTreeBuilder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BufferingTreeBuilder

fn default() -> Self

Returns the “default value” for a type.