Method Stat

internal/backend/cache/backend.go:201–211

Stat tests whether the backend has a file. If it does not exist but still exists in the cache, it is removed from the cache.

(ctx context.Context, h backend.Handle)

// Stat tests whether the backend has a file. If it does not exist but still
// exists in the cache, it is removed from the cache.
func (b *Backend) Stat(ctx context.Context, h backend.Handle) (backend.FileInfo, error) {
	debug.Log("cache Stat(%v)", h)

	fi, err := b.Backend.Stat(ctx, h)
	if err != nil && b.Backend.IsNotExist(err) {
		// try to remove from the cache, ignore errors
		_, _ = b.Cache.remove(h)
	}

	return fi, err
}

// IsNotExist returns true if the error is caused by a non-existing file.
func (b *Backend) IsNotExist(err error) bool {