Module cache 

Filesystem-level cache manager.

Responsibilities:

• Deterministically map AssetContext values to on-disk paths
• Store / load / delete file blobs
• Compute SHA-256 checksums

The cache manager is unaware of the index — the higher-level crate::manager::AssetManager combines the two. This split keeps the filesystem concerns testable in isolation.

Structs

CacheManager

Manages the physical cache directory layout and file I/O.

StoredFile

Metadata returned from CacheManager::store.

Constants

DIR_CHATS

Directory name used for messenger chat attachments.

DIR_ISSUES

Directory name used under the cache root for issue attachments.

DIR_ISSUE_COMMENTS

Directory name used for issue comment attachments.

DIR_KB

Directory name used for knowledge base attachments.

DIR_MERGE_REQUESTS

Directory name used for merge request attachments.

DIR_MR_COMMENTS

Directory name used for MR note/comment attachments.

Functions

resolve_under_root

Validate that a cached-asset local_path stays under root and return the absolute path on success.

sha256_hex

Compute SHA-256 of a byte slice, returned as lower-case hex.