initial

config/config.go

@@ -0,0 +1,21 @@
+package config
+
+type Config struct {
+	App AppConfig
+}
+
+type AppConfig struct {
+	GrpcHost string
+	GrpcPort string
+	LogLevel string
+}
+
+func NewConfig() *Config {
+	return &Config{
+		App: AppConfig{
+			GrpcHost: getEnv("GRPC_HOST", ""),
+			GrpcPort: getEnv("GRPC_PORT", ""),
+			LogLevel: getEnv("LOG_LEVEL", ""),
+		},
+	}
+}

config/getEnv.go

@@ -0,0 +1,24 @@
+package config
+
+import (
+	"os"
+	"strconv"
+)
+
+func getEnv(key, fallback string) string {
+	if value, ok := os.LookupEnv(key); ok {
+		return value
+	}
+	return fallback
+}
+
+func getEnvInt(key string, fallback int) int {
+	if value, ok := os.LookupEnv(key); ok {
+		num, err := strconv.Atoi(value)
+		if err != nil {
+			return fallback
+		}
+		return num
+	}
+	return fallback
+}

config/logging.go

@@ -0,0 +1,35 @@
+package config
+
+import (
+	"fmt"
+	log "github.com/sirupsen/logrus"
+	"os"
+	"path"
+	"runtime"
+)
+
+func LogSetup(lvl string) {
+	l, err := log.ParseLevel(lvl)
+	if err != nil {
+		log.SetLevel(log.DebugLevel)
+	}
+
+	log.SetFormatter(
+		&log.TextFormatter{
+			FullTimestamp: true,
+			CallerPrettyfier: func(f *runtime.Frame) (string, string) {
+				filename := path.Base(f.File)
+				return fmt.Sprintf("%s()", f.Function), fmt.Sprintf(" %s:%d", filename, f.Line)
+			},
+		},
+	)
+
+	if l == log.DebugLevel {
+		log.SetLevel(l)
+		log.SetReportCaller(true)
+	} else {
+		log.SetLevel(l)
+	}
+
+	log.SetOutput(os.Stdout)
+}