init commit

config/config.go

@@ -0,0 +1,29 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/viper"
+)
+
+func Init() {
+	viper.SetConfigName("config")
+	viper.SetConfigType("json")
+
+	configDir := filepath.Join(userConfigDir(), "mach")
+	viper.AddConfigPath(configDir)
+
+	viper.SetDefault("input_type", "md")
+	viper.SetDefault("output_type", "rtf")
+
+	_ = viper.ReadInConfig() // config file is optional
+}
+
+func userConfigDir() string {
+	if dir, err := os.UserConfigDir(); err == nil {
+		return dir
+	}
+	home, _ := os.UserHomeDir()
+	return filepath.Join(home, ".config")
+}