refactor: LoadEnv

internal/config/config.go

@@ -43,7 +43,7 @@ func GetConfig() *Config {
 		var err error
 		cfg.RootDir, err = os.Getwd()
 		if err != nil {
-			panic(err)
+			log.Fatal().Err(err).Msg("get current working directory failed")
 		}
 
 		startTimeStr := cfg.StartTime.Format("20060102150405")

internal/config/env.go

@@ -0,0 +1,101 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"strconv"
+
+	"github.com/joho/godotenv"
+	"github.com/rs/zerolog/log"
+)
+
+// LoadEnv loads environment variables from .env file
+// it will search for .env file from current working directory upward recursively
+func LoadEnv() (err error) {
+	once.Do(func() {
+		// get current working directory
+		var cwd string
+		cwd, err = os.Getwd()
+		if err != nil {
+			log.Error().Err(err).Msg("get current working directory failed")
+			return
+		}
+
+		// locate .env file from current working directory upward recursively
+		envPath := cwd
+		for {
+			envFile := filepath.Join(envPath, ".env")
+			if _, e := os.Stat(envFile); e == nil {
+				// found .env file
+				// override existing env variables
+				err = godotenv.Overload(envFile)
+				if err != nil {
+					log.Error().Err(err).
+						Str("path", envFile).Msg("overload env file failed")
+					return
+				}
+				log.Info().Str("path", envFile).Msg("overload env success")
+				return
+			}
+
+			// reached root directory
+			parent := filepath.Dir(envPath)
+			if parent == envPath {
+				log.Info().Msg("no .env file found from current directory to root")
+				return
+			}
+			envPath = parent
+		}
+	})
+	return err
+}
+
+func GetEnvConfig(key string) string {
+	return os.Getenv(key)
+}
+
+func GetEnvConfigInJSON(key string) (map[string]interface{}, error) {
+	value := GetEnvConfig(key)
+	if value == "" {
+		return nil, nil
+	}
+
+	var result map[string]interface{}
+	if err := json.Unmarshal([]byte(value), &result); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+func GetEnvConfigInBool(key string) bool {
+	value := GetEnvConfig(key)
+	if value == "" {
+		return false
+	}
+
+	boolValue, _ := strconv.ParseBool(value)
+	return boolValue
+}
+
+// GetEnvConfigOrDefault get env config or default value
+func GetEnvConfigOrDefault(key, defaultValue string) string {
+	value := GetEnvConfig(key)
+	if value == "" {
+		return defaultValue
+	}
+	return value
+}
+
+func GetEnvConfigInInt(key string, defaultValue int) int {
+	value := GetEnvConfig(key)
+	if value == "" {
+		return defaultValue
+	}
+
+	intValue, err := strconv.Atoi(value)
+	if err != nil {
+		return defaultValue
+	}
+	return intValue
+}

internal/version/VERSION

@@ -1 +1 @@
-v5.0.0-beta-2503311103
+v5.0.0-beta-2503311454