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|
package main
import (
"flag"
"fmt"
"log"
"os"
"os/signal"
"strings"
"syscall"
"git.server.ky/slackcoder/mirror/internal/service"
)
// Program version
var Version string
type Flags struct {
Config string
ConfigDir string
Version bool
}
func ParseFlags() *Flags {
var flags Flags
flag.StringVar(&flags.Config, "config", "/etc/mirror/conf.d,/etc/mirror/mirror.toml", "comma separated configuration files or directories")
flag.BoolVar(&flags.Version, "version", false, "print version")
flag.Parse()
return &flags
}
func exitOnError(err error) {
if err != nil {
log.Printf("%s", err)
os.Exit(-1)
}
}
func splitCommaString(str string) []string {
strs := strings.Split(str, ",")
for i := range strs {
strs[i] = strings.TrimSpace(strs[i])
}
return strs
}
func handleSignal(c <-chan os.Signal, srv *service.Service, flags *Flags) {
for v := range c {
if v == syscall.SIGHUP {
configs := splitCommaString(flags.Config)
cfg, err := service.ReadConfig(configs...)
if err != nil {
srv.Log(err.Error())
continue
}
srv.Reload(cfg)
}
}
}
func main() {
flags := ParseFlags()
if flags.Version {
fmt.Println(Version)
os.Exit(0)
}
configs := splitCommaString(flags.Config)
cfg, err := service.ReadConfig(configs...)
exitOnError(err)
srv, err := service.NewService(cfg)
exitOnError(err)
signalCh := make(chan os.Signal, 1)
signal.Notify(signalCh, syscall.SIGHUP)
go handleSignal(signalCh, srv, flags)
err = srv.Run()
exitOnError(err)
}
|
