rove/cmd/rove-server/main.go

99 lines
1.9 KiB
Go

package main
import (
"flag"
"log"
"os"
"os/signal"
"strconv"
"syscall"
"time"
"github.com/mdiluz/rove/cmd/rove-server/internal"
"github.com/mdiluz/rove/pkg/persistence"
"github.com/mdiluz/rove/pkg/version"
)
var ver = flag.Bool("version", false, "Display version number")
var quit = flag.Int("quit", 0, "Quit after n seconds, useful for testing")
// Address to host the server on, automatically selected if empty
var address = os.Getenv("HOST_ADDRESS")
// Path for persistent storage
var data = os.Getenv("DATA_PATH")
// The tick rate of the server in seconds
var tick = os.Getenv("TICK_RATE")
func InnerMain() {
flag.Parse()
// Print the version if requested
if *ver {
log.Println(version.Version)
return
}
if len(address) == 0 {
log.Fatalf("Must set HOST_ADDRESS")
}
log.Printf("Initialising version %s...\n", version.Version)
// Set the persistence path
persistence.SetPath(data)
// Convert the tick rate
tickRate := 5
if len(tick) > 0 {
var err error
tickRate, err = strconv.Atoi(tick)
if err != nil {
log.Fatalf("TICK_RATE not set to valid int: %s", err)
}
}
// Create the server data
s := internal.NewServer(
internal.OptionAddress(address),
internal.OptionPersistentData(),
internal.OptionTick(tickRate))
// Initialise the server
if err := s.Initialise(true); err != nil {
panic(err)
}
// Set up the close handler
c := make(chan os.Signal)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
<-c
log.Println("Quit requested, exiting...")
if err := s.Stop(); err != nil {
panic(err)
}
}()
// Quit after a time if requested
if *quit != 0 {
go func() {
time.Sleep(time.Duration(*quit) * time.Second)
syscall.Kill(syscall.Getpid(), syscall.SIGTERM)
}()
}
// Run the server
log.Printf("Serving HTTP on %s\n", s.Addr())
s.Run()
// Close the server
if err := s.Close(); err != nil {
panic(err)
}
}
func main() {
InnerMain()
}