chore: import upstream snapshot with attribution

cache/options.go

@@ -0,0 +1,73 @@
+package cache
+
+import (
+	"context"
+	"time"
+
+	"go-micro.dev/v6/logger"
+)
+
+// Options represents the options for the cache.
+type Options struct {
+	// Context should contain all implementation specific options, using context.WithValue.
+	Context context.Context
+	// Logger is the be used logger
+	Logger logger.Logger
+	Items  map[string]Item
+	// Address represents the address or other connection information of the cache service.
+	Address    string
+	Expiration time.Duration
+}
+
+// Option manipulates the Options passed.
+type Option func(o *Options)
+
+// Expiration sets the duration for items stored in the cache to expire.
+func Expiration(d time.Duration) Option {
+	return func(o *Options) {
+		o.Expiration = d
+	}
+}
+
+// Items initializes the cache with preconfigured items.
+func Items(i map[string]Item) Option {
+	return func(o *Options) {
+		o.Items = i
+	}
+}
+
+// WithAddress sets the cache service address or connection information.
+func WithAddress(addr string) Option {
+	return func(o *Options) {
+		o.Address = addr
+	}
+}
+
+// WithContext sets the cache context, for any extra configuration.
+func WithContext(c context.Context) Option {
+	return func(o *Options) {
+		o.Context = c
+	}
+}
+
+// WithLogger sets underline logger.
+func WithLogger(l logger.Logger) Option {
+	return func(o *Options) {
+		o.Logger = l
+	}
+}
+
+// NewOptions returns a new options struct.
+func NewOptions(opts ...Option) Options {
+	options := Options{
+		Expiration: DefaultExpiration,
+		Items:      make(map[string]Item),
+		Logger:     logger.DefaultLogger,
+	}
+
+	for _, o := range opts {
+		o(&options)
+	}
+
+	return options
+}