Add CreateConfigurationFile and util funcs

ini.go

@@ -13,7 +13,18 @@ type Configuration struct {
 	file         *ini.File
 }
 
-func NewConfiguration(fileLocation string) *Configuration {
+func CreateConfigurationFile(fileLocation string, defaultConfig string) {
+	createFile(fileLocation, []byte(defaultConfig))
+}
+
+func NewConfiguration(fileLocation string, defaultConfig string) *Configuration {
+	conf := new(Configuration)
+	conf.fileLocation = fileLocation
+	conf.createAndLoad(defaultConfig)
+	return conf
+}
+
+func LoadConfiguration(fileLocation string) *Configuration {
 	conf := new(Configuration)
 	conf.fileLocation = fileLocation
 	conf.load()
@@ -206,19 +217,12 @@ func (config *Configuration) IsSet(path string) bool {
 	return key.Value() != ""
 }
 
+func (config *Configuration) createAndLoad(defaultConfig string) {
+	createFile(config.fileLocation, []byte(defaultConfig))
+	config.load()
+}
+
 func (config *Configuration) load() {
-	if _, err := os.Stat(config.fileLocation); err != nil {
-		file, err := os.Create(config.fileLocation)
-		if err != nil {
-			fmt.Printf("Failed to create configuration file: %v", err)
-			os.Exit(1)
-		}
-		_, err = file.WriteString("")
-		if err != nil {
-			fmt.Printf("Error creating configuration file: %v", err)
-			os.Exit(1)
-		}
-	}
 	var err error
 	config.file, err = ini.Load(config.fileLocation)
 	if err != nil {
@@ -234,3 +238,24 @@ func (config *Configuration) Save() {
 		os.Exit(1)
 	}
 }
+
+func createFile(fileLocation string, data []byte) {
+	_, err := os.Stat(fileLocation)
+	if errors.Is(err, os.ErrNotExist) {
+		file, err := os.Create(fileLocation)
+		if err != nil {
+			fmt.Printf("Failed to create file: %v", err)
+			os.Exit(1)
+		}
+		_, err = file.Write(data)
+		if err != nil {
+			fmt.Printf("Error writing to file: %v", err)
+			os.Exit(1)
+		}
+	} else if err != nil {
+		fmt.Printf("Error creating file: %v", err)
+		os.Exit(1)
+	} else {
+		fmt.Printf("File already exists...")
+	}
+}