feat: add config loader

internal/pkg/config/config.go

@@ -0,0 +1,43 @@
+package config
+
+import (
+	"github.com/spf13/viper"
+)
+
+const (
+	DEFAULT_CONFIG_FILE_NAME = "weapp"
+	DEFAULT_CONFIG_FILE_TYPE = "yaml"
+)
+
+var defaultPaths = []string{
+	".",
+	"./conf",
+	"./config",
+	"../conf",
+	"../config",
+	"/conf",
+	"/config",
+	"${HOME}/config",
+	"/",
+}
+
+func AutoLoad() error {
+	return LoadConfig(DEFAULT_CONFIG_FILE_NAME, DEFAULT_CONFIG_FILE_TYPE)
+}
+
+func LoadConfig(fileName, filetype string, paths ...string) error {
+	for _, path := range defaultPaths {
+		viper.AddConfigPath(path)
+	}
+
+	for _, path := range paths {
+		viper.AddConfigPath(path)
+	}
+	viper.SetConfigName(fileName)
+	viper.SetConfigType(filetype)
+	if err := viper.ReadInConfig(); err != nil {
+		return err
+	}
+
+	return nil
+}