Moves files

internal/fuse/blob_size_cache.go

@@ -0,0 +1,36 @@
+// +build !openbsd
+// +build !windows
+
+package fuse
+
+import (
+	"restic"
+
+	"golang.org/x/net/context"
+)
+
+// BlobSizeCache caches the size of blobs in the repo.
+type BlobSizeCache struct {
+	m map[restic.ID]uint
+}
+
+// NewBlobSizeCache returns a new blob size cache containing all entries from midx.
+func NewBlobSizeCache(ctx context.Context, idx restic.Index) *BlobSizeCache {
+	m := make(map[restic.ID]uint, 1000)
+	for pb := range idx.Each(ctx) {
+		m[pb.ID] = uint(restic.PlaintextLength(int(pb.Length)))
+	}
+	return &BlobSizeCache{
+		m: m,
+	}
+}
+
+// Lookup returns the size of the blob id.
+func (c *BlobSizeCache) Lookup(id restic.ID) (size uint, found bool) {
+	if c == nil {
+		return 0, false
+	}
+
+	size, found = c.m[id]
+	return size, found
+}