Merge pull request 'Disk-based blob cache with LRU eviction during restore (closes #29)' (#34) from fix/issue-29 into main

Reviewed-on: #34

internal/vaultik/blobcache.go

@@ -7,9 +7,6 @@ import (
 	"sync"
 )
 
-// defaultMaxBlobCacheBytes is the default maximum size of the disk blob cache (10 GB).
-const defaultMaxBlobCacheBytes = 10 << 30 // 10 GiB
-
 // blobDiskCacheEntry tracks a cached blob on disk.
 type blobDiskCacheEntry struct {
 	key  string

internal/vaultik/restore.go

@@ -109,7 +109,7 @@ func (v *Vaultik) Restore(opts *RestoreOptions) error {
 
 	// Step 5: Restore files
 	result := &RestoreResult{}
-	blobCache, err := newBlobDiskCache(defaultMaxBlobCacheBytes)
+	blobCache, err := newBlobDiskCache(4 * v.Config.BlobSizeLimit.Int64())
 	if err != nil {
 		return fmt.Errorf("creating blob cache: %w", err)
 	}