refactor(init): write config at top level

cmd/ipfs/init.go

@@ -104,11 +104,15 @@ func doInit(configRoot string, dspathOverride string, force bool, nBitsForKeypai
 		return nil, errCannotInitConfigExists
 	}
 
-	conf, err := initConfig(configFilename, dspathOverride, nBitsForKeypair)
+	conf, err := initConfig(dspathOverride, nBitsForKeypair)
 	if err != nil {
 		return nil, err
 	}
 
+	if err := config.WriteConfigFile(configFilename, conf); err != nil {
+		return nil, err
+	}
+
 	err = addTheWelcomeFile(conf)
 	if err != nil {
 		return nil, err
@@ -165,7 +169,7 @@ func datastoreConfig(dspath string) (config.Datastore, error) {
 	return ds, nil
 }
 
-func initConfig(configFilename string, dspathOverride string, nBitsForKeypair int) (*config.Config, error) {
+func initConfig(dspathOverride string, nBitsForKeypair int) (*config.Config, error) {
 	ds, err := datastoreConfig(dspathOverride)
 	if err != nil {
 		return nil, err
@@ -214,10 +218,6 @@ func initConfig(configFilename string, dspathOverride string, nBitsForKeypair in
 		Version: config.VersionDefaultValue(),
 	}
 
-	if err := config.WriteConfigFile(configFilename, conf); err != nil {
-		return nil, err
-	}
-
 	return conf, nil
 }