chore: mv config

pkg/cfg/config.go

@@ -0,0 +1,42 @@
+package cfg
+
+import (
+	"polaris/log"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	TMDB TMDB `mapstructure:"tmdb"`
+}
+
+type TMDB struct {
+	ApiKey string `mapstructure:"apiKey"`
+}
+
+func LoadConfig() (*Config, error) {
+	viper.SetConfigName("config") // name of config file (without extension)
+	viper.SetConfigType("yml")    // REQUIRED if the config file does not have the extension in the name
+	viper.AddConfigPath(".")
+	viper.AddConfigPath("/app/data")
+
+	var cc Config
+	// optionally look for config in the working directory
+	err := viper.ReadInConfig() // Find and read the config file
+	if err != nil {             // Handle errors reading the config file
+		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+			log.Info("create config file")
+			viper.SafeWriteConfig()
+		} else {
+			// Config file was found but another error was produced
+		}
+
+		return nil, errors.Wrap(err, "load config")
+	}
+
+	if err := viper.Unmarshal(&cc); err != nil {
+		return nil, errors.Wrap(err, "unmarshal file")
+	}
+	return &cc, err
+}