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main.go
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main.go
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// Copyright 2022 ROC. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"os"
"os/signal"
"strings"
"syscall"
"time"
"github.com/alimy/cfg"
"github.com/fatih/color"
"github.com/getsentry/sentry-go"
"github.com/rocboss/paopao-ce/internal"
"github.com/rocboss/paopao-ce/internal/conf"
"github.com/rocboss/paopao-ce/internal/service"
"github.com/rocboss/paopao-ce/pkg/debug"
"github.com/rocboss/paopao-ce/pkg/utils"
"github.com/rocboss/paopao-ce/pkg/version"
"github.com/sourcegraph/conc"
_ "go.uber.org/automaxprocs"
)
var (
noDefaultFeatures bool
features suites
)
type suites []string
func (s *suites) String() string {
return strings.Join(*s, ",")
}
func (s *suites) Set(value string) error {
for _, item := range strings.Split(value, ",") {
*s = append(*s, strings.TrimSpace(item))
}
return nil
}
func init() {
flagParse()
conf.Initial(features, noDefaultFeatures)
internal.Initial()
}
func deferFn() {
if cfg.If("Sentry") {
// Flush buffered events before the program terminates.
sentry.Flush(2 * time.Second)
}
}
func flagParse() {
flag.BoolVar(&noDefaultFeatures, "no-default-features", false, "whether not use default features")
flag.Var(&features, "features", "use special features")
flag.Parse()
}
func main() {
utils.PrintHelloBanner(version.VersionInfo())
ss := service.MustInitService()
if len(ss) < 1 {
fmt.Fprintln(color.Output, "no service need start so just exit")
return
}
// do defer function
defer deferFn()
// start pyroscope if need
debug.StartPyroscope()
// start services
wg := conc.NewWaitGroup()
fmt.Fprintf(color.Output, "\nstarting run service...\n\n")
service.Start(wg)
// graceful stop services
wg.Go(func() {
quit := make(chan os.Signal, 1)
// kill (no param) default send syscall.SIGTERM
// kill -2 is syscall.SIGINT
// kill -9 is syscall.SIGKILL but can't be catch, so don't need add it
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
<-quit
fmt.Fprintf(color.Output, "\nshutting down server...\n\n")
service.Stop()
})
wg.Wait()
}