Prepending a slash to user input url if missing. (#547)

* Prepending a slash to user input url if missing.

* Adding the url slash check for spec.

fission/function.go

@@ -274,6 +274,10 @@ func fnCreate(c *cli.Context) error {
 	if len(triggerUrl) == 0 {
 		return nil
 	}
+	if !strings.HasPrefix(triggerUrl, "/") {
+		triggerUrl = fmt.Sprintf("/%s", triggerUrl)
+	}
+
 	method := c.String("method")
 	if len(method) == 0 {
 		method = "GET"

fission/httptrigger.go

@@ -80,6 +80,10 @@ func htCreate(c *cli.Context) error {
 	if len(triggerUrl) == 0 {
 		fatal("Need a trigger URL, use --url")
 	}
+	if !strings.HasPrefix(triggerUrl, "/") {
+		triggerUrl = fmt.Sprintf("/%s", triggerUrl)
+	}
+
 	method := c.String("method")
 	if len(method) == 0 {
 		method = "GET"

fission/spec.go

@@ -246,6 +246,9 @@ func parseYaml(path string, b []byte, fr *FissionResources) error {
 			warn(fmt.Sprintf("Failed to parse %v in %v: %v", tm.Kind, path, err))
 			return err
 		}
+		if !strings.HasPrefix(v.Spec.RelativeURL, "/") {
+			v.Spec.RelativeURL = fmt.Sprintf("/%s", v.Spec.RelativeURL)
+		}
 		fr.httpTriggers = append(fr.httpTriggers, v)
 	case "KubernetesWatchTrigger":
 		var v crd.KubernetesWatchTrigger