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disk_cache

Two-phase disk cache with LRU garbage collection, sized budgets, and crash-safe SQLite index.

Separates downloaded archives from installed (extracted) content, allowing cheap-to-rehydrate installed directories to be evicted before expensive-to-fetch archive blobs.

Modules

  • mod.rs - Public DiskCache facade
  • paths.rs - Sole source of cache path construction (archives, installed, staging)
  • index.rs - SQLite open/migrate/query/touch/reconcile
  • budget.rs - Size accounting, watermark math, auto-scaling from disk space
  • gc.rs - Eviction loop, lease reaping, lock handling
  • lease.rs - RAII Lease guard that pins entries during builds