mirror of
https://github.com/dnote/dnote
synced 2026-03-16 07:25:49 +01:00
96 lines
2.1 KiB
Go
96 lines
2.1 KiB
Go
/* Copyright (C) 2019 Monomax Software Pty Ltd
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*
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* This file is part of Dnote.
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*
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* Dnote is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dnote is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
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*/
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package main
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import (
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"log"
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"os"
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"os/exec"
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"syscall"
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"time"
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"github.com/radovskyb/watcher"
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)
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func command(binary string, args []string, entryPoint string) *exec.Cmd {
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cmd := exec.Command(binary, args...)
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// Notice this change.
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cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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cmd.Dir = entryPoint
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cmd.Stderr = os.Stderr
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cmd.Stdout = os.Stdout
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// Using Start and not Run.
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err := cmd.Start()
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if err != nil {
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log.Printf("Command finished with error: %v", err)
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}
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return cmd
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}
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func execCmd() *exec.Cmd {
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return command("go", []string{"run", "main.go", "start", "-port", "3000"}, "..")
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}
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func main() {
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w := watcher.New()
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w.IgnoreHiddenFiles(true)
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w.SetMaxEvents(1)
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var e *exec.Cmd
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go func() {
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for {
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select {
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case <-w.Event:
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log.Println("Change detected. Restarting server...")
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// Killing the process here.
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if e != nil {
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pgid, err := syscall.Getpgid(e.Process.Pid)
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if err == nil {
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syscall.Kill(-pgid, syscall.SIGKILL)
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}
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e.Wait()
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}
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// Starting it again here or starting for the first time.
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e = execCmd()
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case err := <-w.Error:
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log.Fatalln(err)
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case <-w.Closed:
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return
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}
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}
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}()
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if err := w.AddRecursive(".."); err != nil {
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log.Fatalln(err)
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}
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e = execCmd()
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log.Printf("watching %d files", len(w.WatchedFiles()))
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if err := w.Start(time.Millisecond * 1000); err != nil {
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log.Fatalln(err)
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}
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}
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