add config

config/source/consul/options.go

@@ -0,0 +1,63 @@
+package consul
+
+import (
+	"context"
+
+	"github.com/micro/go-micro/config/source"
+)
+
+type addressKey struct{}
+type prefixKey struct{}
+type stripPrefixKey struct{}
+type dcKey struct{}
+type tokenKey struct{}
+
+// WithAddress sets the consul address
+func WithAddress(a string) source.Option {
+	return func(o *source.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, addressKey{}, a)
+	}
+}
+
+// WithPrefix sets the key prefix to use
+func WithPrefix(p string) source.Option {
+	return func(o *source.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, prefixKey{}, p)
+	}
+}
+
+// StripPrefix indicates whether to remove the prefix from config entries, or leave it in place.
+func StripPrefix(strip bool) source.Option {
+	return func(o *source.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+
+		o.Context = context.WithValue(o.Context, stripPrefixKey{}, strip)
+	}
+}
+
+func WithDatacenter(p string) source.Option {
+	return func(o *source.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, dcKey{}, p)
+	}
+}
+
+// WithToken sets the key token to use
+func WithToken(p string) source.Option {
+	return func(o *source.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, tokenKey{}, p)
+	}
+}