feat: Add save config feature within the config subcommand

calnex/cmd/cmd.go

@@ -36,6 +36,7 @@ var (
 	insecureTLS bool
 	source      string
 	target      string
+	saveConfig  string
 )
 
 // Execute is the main entry point for CLI interface

calnex/cmd/config.go

@@ -32,12 +32,14 @@
 	configCmd.Flags().BoolVar(&insecureTLS, "insecureTLS", false, "Ignore TLS certificate errors")
 	configCmd.Flags().StringVar(&target, "target", "", "device to configure")
 	configCmd.Flags().StringVar(&source, "file", "", "configuration file")
+	configCmd.Flags().StringVar(&saveConfig, "save", "", "save configuration to the specified path")
 	if err := configCmd.MarkFlagRequired("target"); err != nil {
 		log.Fatal(err)
 	}
 	if err := configCmd.MarkFlagRequired("file"); err != nil {
 		log.Fatal(err)
 	}
+	configCmd.MarkFlagsMutuallyExclusive("apply", "save")
 }
 
 var configCmd = &cobra.Command{
@@ -65,8 +67,14 @@
 			log.Fatalf("Failed to find config for %s in %s", target, source)
 		}
 
-		if err := config.Config(target, insecureTLS, dc, apply); err != nil {
-			log.Fatal(err)
+		if saveConfig != "" {
+			if err := config.Save(target, insecureTLS, dc, saveConfig); err != nil {
+				log.Fatal(err)
+			}
+		} else {
+			if err := config.Config(target, insecureTLS, dc, apply); err != nil {
+				log.Fatal(err)
+			}
 		}
 	},
 }

calnex/config/config.go

@@ -193,20 +193,12 @@ func Config(target string, insecureTLS bool, cc *CalnexConfig, apply bool) error
 	var c config
 	api := api.NewAPI(target, insecureTLS)
 
-	f, err := api.FetchSettings()
+	f, err := prepare(&c, api, target, cc)
+
 	if err != nil {
 		return err
 	}
 
-	m := f.Section("measure")
-	g := f.Section("gnss")
-
-	// set base config
-	c.baseConfig(m, g, target, cc.AntennaDelayNS)
-
-	// set measure config
-	c.measureConfig(m, cc.Measure)
-
 	if !apply {
 		log.Info("dry run. Exiting")
 		return nil
@@ -246,3 +238,41 @@ func Config(target string, insecureTLS bool, cc *CalnexConfig, apply bool) error
 
 	return nil
 }
+
+// Save saves the Network/Calnex configs to file
+func Save(target string, insecureTLS bool, cc *CalnexConfig, saveConfig string) error {
+	var c config
+	api := api.NewAPI(target, insecureTLS)
+
+	f, err := prepare(&c, api, target, cc)
+
+	if err != nil {
+		return err
+	}
+
+	err = f.SaveTo(saveConfig)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func prepare(c *config, api *api.API, target string, cc *CalnexConfig) (*ini.File, error) {
+	f, err := api.FetchSettings()
+	if err != nil {
+		return nil, err
+	}
+
+	m := f.Section("measure")
+	g := f.Section("gnss")
+
+	// set base config
+	c.baseConfig(m, g, target, cc.AntennaDelayNS)
+
+	// set measure config
+	c.measureConfig(m, cc.Measure)
+
+	return f, nil
+}