First Commit of Voltha-Go-Controller from Radisys
Change-Id: I8e2e908e7ab09a4fe3d86849da18b6d69dcf4ab0
diff --git a/vendor/github.com/go-redis/redis/v8/script.go b/vendor/github.com/go-redis/redis/v8/script.go
new file mode 100644
index 0000000..5cab18d
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/script.go
@@ -0,0 +1,65 @@
+package redis
+
+import (
+ "context"
+ "crypto/sha1"
+ "encoding/hex"
+ "io"
+ "strings"
+)
+
+type Scripter interface {
+ Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
+ EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
+ ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
+ ScriptLoad(ctx context.Context, script string) *StringCmd
+}
+
+var (
+ _ Scripter = (*Client)(nil)
+ _ Scripter = (*Ring)(nil)
+ _ Scripter = (*ClusterClient)(nil)
+)
+
+type Script struct {
+ src, hash string
+}
+
+func NewScript(src string) *Script {
+ h := sha1.New()
+ _, _ = io.WriteString(h, src)
+ return &Script{
+ src: src,
+ hash: hex.EncodeToString(h.Sum(nil)),
+ }
+}
+
+func (s *Script) Hash() string {
+ return s.hash
+}
+
+func (s *Script) Load(ctx context.Context, c Scripter) *StringCmd {
+ return c.ScriptLoad(ctx, s.src)
+}
+
+func (s *Script) Exists(ctx context.Context, c Scripter) *BoolSliceCmd {
+ return c.ScriptExists(ctx, s.hash)
+}
+
+func (s *Script) Eval(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+ return c.Eval(ctx, s.src, keys, args...)
+}
+
+func (s *Script) EvalSha(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+ return c.EvalSha(ctx, s.hash, keys, args...)
+}
+
+// Run optimistically uses EVALSHA to run the script. If script does not exist
+// it is retried using EVAL.
+func (s *Script) Run(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+ r := s.EvalSha(ctx, c, keys, args...)
+ if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
+ return s.Eval(ctx, c, keys, args...)
+ }
+ return r
+}