Module fetch 

Dist downloads, interoperable with Composer’s cache: same layout (<cache>/files/<vendor>/<pkg>/<sha1-of-url>.zip), both read AND fed, so a cache warmed by one serves the other. Minimal v1 auth: github-oauth, http-basic, bearer (project auth.json, COMPOSER_AUTH, then the COMPOSER_HOME auth.json). The lock’s shasum, when present, is checked on download AND when reading back from the cache (meta-analysis F7: a shared cache is read back with suspicion).

Structs

Auth

Fetcher

Enums

MetadataResponse

Response of a conditional metadata GET.

Provenance

Functions

composer_cache_dir

Factory::getCacheDir: COMPOSER_CACHE_DIR; else $COMPOSER_HOME/cache if COMPOSER_HOME is set; Darwin -> ~/Library/Caches/composer; ~/.composer/cache if it exists; XDG -> $XDG_CACHE_HOME/composer; else <home>/cache.

composer_home

Factory::getHomeDir (docs/reference/Factory.php): COMPOSER_HOME, else the first existing directory among $XDG_CONFIG_HOME/composer (if XDG is in use) and ~/.composer, else the first candidate.

dist_cache_path

Cache path of a dist, identical to Composer’s: sha1 of the FULL URL (deliberate in Composer: prevents cross-repository poisoning), key sanitised to [a-z0-9._/-].