Initial commit

internal/config/init.go

@@ -0,0 +1,38 @@
+package config
+
+import (
+	"strings"
+
+	"github.com/spf13/viper"
+	"hub.cybercinch.nz/guisea/go-template/internal/app"
+	"hub.cybercinch.nz/guisea/go-template/internal/filesystem"
+	"hub.cybercinch.nz/guisea/go-template/internal/where"
+)
+
+// ConfigFormat is the format of the config file
+// Available options are: json, yaml, toml
+const ConfigFormat = "yaml"
+
+var EnvKeyReplacer = strings.NewReplacer(".", "_")
+
+func Init() error {
+	viper.SetConfigName(app.Name)
+	viper.SetConfigType(ConfigFormat)
+	viper.SetFs(filesystem.Api())
+	viper.AddConfigPath(where.Config())
+	viper.SetTypeByDefaultValue(true)
+	viper.SetEnvPrefix(app.Name)
+	viper.SetEnvKeyReplacer(EnvKeyReplacer)
+
+	setDefaults()
+
+	err := viper.ReadInConfig()
+
+	switch err.(type) {
+	case viper.ConfigFileNotFoundError:
+		// Use defaults then
+		return nil
+	default:
+		return err
+	}
+}