rename

daemon.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"runtime"
+	"strconv"
+)
+
+func getPidFile() string {
+	return projectFolder + "/.fileboy.pid"
+}
+
+func runAsDaemon() (int, error) {
+	if runtime.GOOS == "windows" {
+		logAndExit("daemons mode cannot run on windows.")
+	}
+	err := stopDaemon()
+	if err != nil {
+		logAndExit(err)
+	}
+	_, err = exec.LookPath("fileboy")
+	if err != nil {
+		logAndExit("cannot found `fileboy` command in the PATH")
+	}
+	daemon := exec.Command("fileboy")
+	daemon.Dir = projectFolder
+	daemon.Env = os.Environ()
+	daemon.Stdout = os.Stdout
+	err = daemon.Start()
+	if err != nil {
+		logAndExit(err)
+	}
+	pid := daemon.Process.Pid
+	if pid != 0 {
+		ioutil.WriteFile(getPidFile(), []byte(strconv.Itoa(pid)), 0644)
+	}
+	return pid, nil
+}
+
+func stopDaemon() error {
+	bs, err := ioutil.ReadFile(getPidFile())
+	if err != nil {
+		return nil
+	}
+	_ = exec.Command("kill", string(bs)).Run()
+	os.Remove(getPidFile())
+	return nil
+}