fermentord/internal/configuration/config.go

package configuration

import (
	"log"
	"sync"

	"github.com/getsentry/sentry-go"
	"github.com/spf13/viper"
)

var (
	globalConfig Configuration
	globalLock   *sync.Mutex
)

func init() {
	globalLock = &sync.Mutex{}
}

func Global() (c Configuration) {
	globalLock.Lock()
	c = globalConfig
	globalLock.Unlock()
	return
}

func Initialize() {
	setDefaults()

	viper.AddConfigPath("/etc")
	viper.AddConfigPath("/usr/local/etc")
	viper.AddConfigPath(".")
	viper.SetConfigName("fermentord")
	viper.SetConfigType("toml")
}

func LoadConfiguration() Configuration {
	globalLock.Lock()
	defer globalLock.Unlock()

	if err := viper.ReadInConfig(); err != nil {
		log.Printf("Error loading configuration: %v", err)
	}

	config := &Configuration{}
	if err := viper.Unmarshal(config); err != nil {
		sentry.CaptureException(err)
		log.Fatal(err)
	}

	globalConfig = *config

	return globalConfig
}