gost/cmd/gost/main.go
2023-03-31 14:51:08 +08:00

98 lines
2.0 KiB
Go

package main
import (
"context"
"flag"
"fmt"
"log"
_ "net/http/pprof"
"os"
"os/exec"
"runtime"
"strings"
"sync"
"github.com/go-gost/core/logger"
xlogger "github.com/go-gost/x/logger"
"github.com/judwhite/go-svc"
)
var (
cfgFile string
outputFormat string
services stringList
nodes stringList
debug bool
apiAddr string
metricsAddr string
)
func init() {
args := strings.Join(os.Args[1:], " ")
if strings.Contains(args, " -- ") {
var (
wg sync.WaitGroup
ret int
)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
for wid, wargs := range strings.Split(" "+args+" ", " -- ") {
wg.Add(1)
go func(wid int, wargs string) {
defer wg.Done()
defer cancel()
worker(wid, strings.Split(wargs, " "), &ctx, &ret)
}(wid, strings.TrimSpace(wargs))
}
wg.Wait()
os.Exit(ret)
}
}
func worker(id int, args []string, ctx *context.Context, ret *int) {
cmd := exec.CommandContext(*ctx, os.Args[0], args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Env = append(os.Environ(), fmt.Sprintf("_GOST_ID=%d", id))
cmd.Run()
if cmd.ProcessState.Exited() {
*ret = cmd.ProcessState.ExitCode()
}
}
func init() {
var printVersion bool
flag.Var(&services, "L", "service list")
flag.Var(&nodes, "F", "chain node list")
flag.StringVar(&cfgFile, "C", "", "configuration file")
flag.BoolVar(&printVersion, "V", false, "print version")
flag.StringVar(&outputFormat, "O", "", "output format, one of yaml|json format")
flag.BoolVar(&debug, "D", false, "debug mode")
flag.StringVar(&apiAddr, "api", "", "api service address")
flag.StringVar(&metricsAddr, "metrics", "", "metrics service address")
flag.Parse()
if printVersion {
fmt.Fprintf(os.Stdout, "gost %s (%s %s/%s)\n",
version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
os.Exit(0)
}
logger.SetDefault(xlogger.NewLogger())
}
func main() {
p := &program{}
if err := svc.Run(p); err != nil {
log.Fatal(err)
}
}