Module walk 

Directory traversal with filtering for tree hashing, archive packing, and mtime computation.

Substrate defines the traversal logic and filtering rules; callers provide I/O via the DirReader trait. This keeps substrate zero-I/O and WASM-compatible while ensuring consistent filtering everywhere.

Structs

DirEntry

A single entry returned by DirReader::read_dir.

Traits

DirReader

Filesystem abstraction so substrate can drive traversal without doing I/O itself.

Functions

flatten_entries

Flatten a recursive TreeEntry tree into a flat list of (path, content, executable).

max_mtime

Walk a directory and return the maximum file modification time (epoch ms).

should_exclude

Check whether a filename should be excluded (exact name match).

walk_dir

Walk a directory tree and produce TreeEntry values.