Try to handle default arguments

Author: babarot

config.go

@@ -30,8 +30,9 @@ type Config struct {
 
 // Service is the URL and its Env pair
 type Service struct {
-	URL string `json:"url"`
-	Env Env    `json:"env"`
+	URL  string   `json:"url"`
+	Env  Env      `json:"env"`
+	Args []string `json:"args"`
 }
 
 // Env represents the environment variables needed to request to IAP-protected app
@@ -86,6 +87,7 @@ func (cfg *Config) Create() error {
 				ClientID:    "foobar.apps.googleusercontent.com",
 				Binary:      "curl",
 			},
+			Args: []string{},
 		}}
 	}
 
@@ -212,3 +214,13 @@ func (cfg *Config) Register(s Service) error {
 	w.Write(out.Bytes())
 	return w.Flush()
 }
+
+// GetServiceArgs returns ...
+func (cfg *Config) GetServiceArgs(url string) []string {
+	for _, service := range cfg.Services {
+		if service.URL == url {
+			return service.Args
+		}
+	}
+	return []string{}
+}

main.go

@@ -154,8 +154,9 @@ func (c CLI) run() int {
 	authHeader := fmt.Sprintf("Authorization: Bearer %s", token)
 	args := append(
 		[]string{"-H", authHeader}, // For IAP
-		c.args...,
+		c.cfg.GetServiceArgs(url)...,
 	)
+	args = append(args, c.args...)
 	args = append(args, url)
 
 	s := newShell(env.Binary, args)