1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/github.com/ulikunitz/xz/none-check.go b/vendor/github.com/ulikunitz/xz/none-check.go
new file mode 100644
index 000000000..e12d8e476
--- /dev/null
+++ b/vendor/github.com/ulikunitz/xz/none-check.go
@@ -0,0 +1,23 @@
+// Copyright 2014-2019 Ulrich Kunitz. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xz
+
+import "hash"
+
+type noneHash struct{}
+
+func (h noneHash) Write(p []byte) (n int, err error) { return len(p), nil }
+
+func (h noneHash) Sum(b []byte) []byte { return b }
+
+func (h noneHash) Reset() {}
+
+func (h noneHash) Size() int { return 0 }
+
+func (h noneHash) BlockSize() int { return 0 }
+
+func newNoneHash() hash.Hash {
+	return &noneHash{}
+}