Make Nix builds work

1 files changed, 76 insertions, 0 deletions

diff --git a/vendor/github.com/google/uuid/version4.go b/vendor/github.com/google/uuid/version4.go
new file mode 100644
index 0000000..7697802
--- /dev/null
+++ b/vendor/github.com/google/uuid/version4.go
@@ -0,0 +1,76 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import "io"
+
+// New creates a new random UUID or panics.  New is equivalent to
+// the expression
+//
+//    uuid.Must(uuid.NewRandom())
+func New() UUID {
+        return Must(NewRandom())
+}
+
+// NewString creates a new random UUID and returns it as a string or panics.
+// NewString is equivalent to the expression
+//
+//    uuid.New().String()
+func NewString() string {
+        return Must(NewRandom()).String()
+}
+
+// NewRandom returns a Random (Version 4) UUID.
+//
+// The strength of the UUIDs is based on the strength of the crypto/rand
+// package.
+//
+// Uses the randomness pool if it was enabled with EnableRandPool.
+//
+// A note about uniqueness derived from the UUID Wikipedia entry:
+//
+//  Randomly generated UUIDs have 122 random bits.  One's annual risk of being
+//  hit by a meteorite is estimated to be one chance in 17 billion, that
+//  means the probability is about 0.00000000006 (6 × 10−11),
+//  equivalent to the odds of creating a few tens of trillions of UUIDs in a
+//  year and having one duplicate.
+func NewRandom() (UUID, error) {
+        if !poolEnabled {
+                return NewRandomFromReader(rander)
+        }
+        return newRandomFromPool()
+}
+
+// NewRandomFromReader returns a UUID based on bytes read from a given io.Reader.
+func NewRandomFromReader(r io.Reader) (UUID, error) {
+        var uuid UUID
+        _, err := io.ReadFull(r, uuid[:])
+        if err != nil {
+                return Nil, err
+        }
+        uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
+        uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
+        return uuid, nil
+}
+
+func newRandomFromPool() (UUID, error) {
+        var uuid UUID
+        poolMu.Lock()
+        if poolPos == randPoolSize {
+                _, err := io.ReadFull(rander, pool[:])
+                if err != nil {
+                        poolMu.Unlock()
+                        return Nil, err
+                }
+                poolPos = 0
+        }
+        copy(uuid[:], pool[poolPos:(poolPos+16)])
+        poolPos += 16
+        poolMu.Unlock()
+
+        uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
+        uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
+        return uuid, nil
+}