Module layout 

OCI image-layout directory mechanics. Knows files and blobs, not components.

Functions

blob_path

Path to a blob given its hex digest (no sha256: prefix).

blobs_dir

has_blob

index_path

init

Create the layout skeleton. Idempotent.

oci_layout_path

read_blob

sha256_hex

Lowercase hex of the sha256 of bytes.

write_blob

Write bytes as a blob; returns its hex digest. Atomic (temp + rename); a no-op if the blob already exists (content-addressed dedup).