Remove unimplemented Purge and three unused interfaces (closes #73)

Purge only returned an error and nothing called it, so it is gone from the ImageCache interface and from Service, along with its error value. It can be added back when something needs it; eviction reclaims disk space meanwhile. The SignatureValidator, Allowlist and Storage interfaces in imgcache.go had no implementers and no users, and described types that look different from the real ones, so they are deleted. No behaviour changes. Model: opus-5-5
2026-10-04 08:41:37 +02:00
parent 5b17d1f555
commit 6830bdc5de
3 changed files with 8 additions and 39 deletions
@@ -29,6 +29,11 @@ P2: security: referer blacklist

 # Completed Steps

+- 2026-10-04 dead code in `internal/imgcache` is gone (closes #73): `Purge`,
+  which only returned an error and which nothing called, is no longer part of
+  the `ImageCache` interface or `Service`; the `SignatureValidator`,
+  `Allowlist` and `Storage` interfaces, which nothing implemented or used, are
+  deleted. Nothing else changes.
 - 2026-10-04 upstream host semaphores and variant `.meta` files no longer
  outlive their use (closes #87): the fetcher counts the fetches holding or
  waiting for a slot of each upstream host's semaphore and removes the host's