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main.go
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main.go
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package main
import (
"flag"
"os"
log "github.com/Sirupsen/logrus"
"github.com/mfellner/comodoro/app"
"github.com/spf13/viper"
)
var (
dbFile *string
globalFlagset = flag.NewFlagSet("comodoro", flag.ExitOnError)
globalFlags = struct {
Port int
LogLevel string
DBFile string
FleetEndpoint string
}{}
)
func init() {
globalFlagset.IntVar(&globalFlags.Port,
"port", 3030, "Port to listen on.")
globalFlagset.StringVar(&globalFlags.LogLevel,
"log", "info", "Log level (\"debug\", \"info\" or \"warn\").")
globalFlagset.StringVar(&globalFlags.DBFile,
"db", "/tmp/comodoro.db", "Path to the BoltDB file.")
globalFlagset.StringVar(&globalFlags.FleetEndpoint,
"fleet-endpoint", "unix:///var/run/fleet.sock", "Location of the fleet API.")
globalFlagset.Parse(os.Args[1:])
// Enviroment variables are uppercase and must start with APP_
viper.SetEnvPrefix("app")
viper.BindEnv("port")
viper.BindEnv("loglevel")
viper.BindEnv("fleetEndpoint")
viper.SetDefault("port", globalFlags.Port)
viper.SetDefault("loglevel", globalFlags.LogLevel)
viper.SetDefault("fleetEndpoint", globalFlags.FleetEndpoint)
switch viper.Get("loglevel") {
case "debug":
log.SetLevel(log.DebugLevel)
case "info":
log.SetLevel(log.InfoLevel)
default:
log.SetLevel(log.WarnLevel)
}
}
func main() {
var db app.DB
if err := db.Open(globalFlags.DBFile, 0600); err != nil {
log.Fatal(err)
}
defer db.Close()
app := app.NewApp(&db)
port := viper.GetInt("port")
log.WithFields(log.Fields{
"port": port,
}).Info("Comodoro started")
log.Fatal(app.ListenAndServe(port))
}