Module util 

Path, URI, and hashing utilities shared by the sources, builders, and rules.

Functions

hash_bytes

Hash content with BLAKE3, returning b3:<hex>.

is_uri

Check whether a target string is a URI.

normalize_relative_path

Normalize a relative path by resolving . and .. components using path APIs. Does not touch the filesystem. Always returns forward-slash separated paths. Preserves leading .. that escape above the root, and preserves an absolute root/prefix (/foo, C:\foo) verbatim — both indicate graph escape and must not be silently rewritten into in-graph relative paths.

relative_from

Rewrite a root-relative target as a link relative to source_file — the inverse of resolve_link, for suggesting the path an author meant to write. resolve_link(source, relative_from(source, target)) == target.

resolve_link

Resolve a link target relative to a source file, producing a path relative to the graph root.