Module cache 

Remote schema caching module.

This module provides caching for remote schema files fetched over HTTP(S).

Module Organization

• Core types (always available): CacheMeta, CacheKeyInfo, path computation
• Native I/O (requires native feature): fetch, FsStorage, gc

Cache Layout

The cache is stored in ~/.cache/eure/schemas/ (or $EURE_CACHE_DIR). Files are organized with 2-level directory sharding to prevent overcrowding:

~/.cache/eure/schemas/
  eure.dev/
    a1/
      b2/
        a1b2c3d4-eure-schema.schema.eure       # content
        a1b2c3d4-eure-schema.schema.eure.meta  # metadata (JSON)

Example (native only)

use url::Url;
use eure_env::cache::{fetch, CacheOptions};

let url = Url::parse("https://eure.dev/v0.1.0/schemas/eure-schema.schema.eure").unwrap();
let result = fetch(&url, &CacheOptions::default()).unwrap();
println!("Content: {}", result.content);
println!("From cache: {}", result.from_cache);

Structs

CacheKeyInfo

Information about a cache key derived from a URL.

CacheMeta

Metadata for a cached file.

ConditionalHeaders

Conditional GET headers.

Enums

CacheAction

Result of checking cache freshness.

Functions

compute_cache_key

Compute cache key information from a URL.

compute_content_hash

Compute SHA256 hash of content and return as hex string.

lock_path

Get the lock file path for a cache file.

meta_path

Get the meta file path for a cache file.

url_to_cache_path

Convert URL to full cache file path.