polycubectl: remove hardcoded version logic (polycube-network#136)

Some time ago we had two kind of services, so the cli has to be aware of that.
The last service to be updated is pcn-bridge, so now all services are aligned.

We don't expect to handle this case in the future, so remove this logic.

Signed-off-by: Mauricio Vasquez B <mauriciovasquezbernal@gmail.com>

src/polycubectl/cliargs/cliargs.go

@@ -404,11 +404,7 @@ func (cli *CLIArgs) getRequestMethod() string {
 	} else if cli.Command == AddCommand || cli.Command == "" {
 		return httprequest.PostStr
 	} else if cli.Command == SetCommand {
-		if config.GetConfig().Version == "1" {
-			return httprequest.PutStr
-		} else {
-			return httprequest.PatchStr
-		}
+		return httprequest.PatchStr
 	} else if cli.Command == ShowCommand {
 		return httprequest.GetStr
 	} else if cli.Command == DelCommand {

src/polycubectl/config/config.go

@@ -38,9 +38,6 @@ type Config struct {
 	Debug   bool   `yaml:"debug"`
 	Expert  bool   `yaml:"expert"`
 	Url     string `yaml:"url"`
-	Version string `yaml:"version"`
-	// get version to be used according to service name
-	HardCodedVersionEnabled bool
 	// enables Workaround for urls (e.g. set peer=veth1 PUT /peer/ "veth1")
 	SingleParameterWorkaround bool
 
@@ -58,8 +55,6 @@ func NewDefaultConfig() Config {
 		Debug:                     false,
 		Expert:                    true,
 		Url:                       "http://localhost:9000/polycube/v1/",
-		Version:                   "2",
-		HardCodedVersionEnabled:   true,
 		SingleParameterWorkaround: true,
 	}
 
@@ -78,7 +73,6 @@ func saveConfig(config Config) error {
 `# debug: shows http method/url and body of the response
 # expert: enables the possibility to add new services
 # url: is the base url to contact the rest server
-# version: (1) uses PUT method, (2) uses PATCH method
 # cacert: path to certification authority certificate to validate polycubed identity
 # cert: path to certificate to present to polycubed for validate polycubectl identity
 # key: path to private key for polycubectl
@@ -131,10 +125,6 @@ func LoadConfig() (error) {
 		return fmt.Errorf("error decoding config file: %s", err.Error())
 	}
 
-	if config.Version != "" && config.Version != "1" && config.Version != "2" {
-		return fmt.Errorf("%s if not a valid version, please check the config file. %s", config.Version)
-	}
-
 	if os.Getenv("POLYCUBECTL_URL") != "" {
 		config.Url = os.Getenv("POLYCUBECTL_URL")
 	}
@@ -153,10 +143,6 @@ func LoadConfig() (error) {
 		}
 	}
 
-	if os.Getenv("POLYCUBECTL_VERSION") != "" {
-		config.Version = os.Getenv("POLYCUBECTL_VERSION")
-	}
-
 	if os.Getenv("POLYCUBECTL_CACERT") != "" {
 		config.CACert = os.Getenv("POLYCUBECTL_CACERT")
 	}

src/polycubectl/main.go

@@ -49,13 +49,6 @@ func main() {
 		os.Exit(1)
 	}
 
-	if config.GetConfig().HardCodedVersionEnabled {
-		v := GetHardCodedVersion(os.Args[1:])
-		if v != "" {
-			config.GetConfig().Version = v
-		}
-	}
-
 	LogCommand(os.Args)
 
 	cliArgs, err := cliargs.ParseCLIArgs(os.Args[1:])