Golang log.Info函数代码示例

func main() {
	log.Info("Go Walker %s", APP_VER)
	log.Info("Run Mode: %s", strings.Title(macaron.Env))

	m := newMacaron()
	m.Get("/", routers.Home)
	m.Get("/search", routers.Search)
	m.Get("/search/json", routers.SearchJSON)

	m.Group("/api", func() {
		m.Group("/v1", func() {
			m.Get("/badge", apiv1.Badge)
		})
	})

	m.Get("/robots.txt", func() string {
		return `User-agent: *
Disallow: /search`
	})
	m.Get("/*", routers.Docs)

	listenAddr := fmt.Sprintf("0.0.0.0:%d", setting.HTTPPort)
	log.Info("Listen: http://%s", listenAddr)
	if err := http.ListenAndServe(listenAddr, m); err != nil {
		log.FatalD(4, "Fail to start server: %v", err)
	}
}

func main() {
	// flag.Parse()
	log.Info("App Version: %s", APP_VER)
	var port string
	if port = os.Getenv(PortVar); port == "" {
		port = "8080"
	}
	log.Info("PORT: %s", port)

	m := macaron.Classic()
	m.Use(macaron.Renderer())
	// m.Use(middleware.Contexter())

	m.Get("/", func() string {
		return "Hello"
	})
	m.Get("/fibonacci", v1.Fibonacci)

	// log.Info("PORT: %s", setting.HTTPPort)
	// _ = setting.HTTPPort

	http.ListenAndServe(":"+port, m)

	// http.ListenAndServe(fmt.Sprintf(":%d", *port), m)
	// http.ListenAndServe(":"+setting.HTTPPort, m)
	// m.Run(":" + setting.HTTPPort)
}

func main() {
	log.Info("Peach %s", APP_VER)

	m := macaron.New()
	m.Use(macaron.Logger())
	m.Use(macaron.Recovery())
	m.Use(macaron.Statics(macaron.StaticOptions{
		SkipLogging: setting.ProdMode,
	}, "custom/public", "public"))
	m.Use(i18n.I18n(i18n.Options{
		Files: setting.Docs.Locales,
	}))
	tplDir := "templates"
	if setting.Page.UseCustomTpl {
		tplDir = "custom/templates"
	}
	m.Use(pongo2.Pongoer(pongo2.Options{
		Directory: tplDir,
	}))
	m.Use(middleware.Contexter())

	m.Get("/", routers.Home)
	m.Get("/docs", routers.Docs)
	m.Get("/docs/images/*", routers.DocsStatic)
	m.Get("/docs/*", routers.Docs)
	m.Post("/hook", routers.Hook)
	m.Get("/search", routers.Search)
	m.Get("/*", routers.Pages)

	m.NotFound(routers.NotFound)

	listenAddr := fmt.Sprintf("0.0.0.0:%d", setting.HTTPPort)
	log.Info("%s Listen on %s", setting.Site.Name, listenAddr)
	log.Fatal("Fail to start Peach: %v", http.ListenAndServe(listenAddr, m))
}

func sendFile(fileName string) {
	f, err := os.Open(fileName)
	if err != nil {
		log.Error("Fail to open file: %v", err)
		return
	}
	defer f.Close()

	fi, err := os.Stat(fileName)
	if err != nil {
		log.Error("Fail to stat file: %v", err)
		return
	}

	fileName = strings.Replace(fileName, "\\", "/", -1) //path.Base()
	log.Info("File name: %s; size: %s", fileName, com.HumaneFileSize(uint64(fi.Size())))

	conn, err := net.Dial("tcp", setting.Cfg.Sync.RemoteAddr)
	if err != nil {
		log.Error("Fail to establish connection: %v", err)
		return
	}
	defer conn.Close()

	log.Info("Connection established")

	conn.Write([]byte(fileName))
	p := make([]byte, 2)
	_, err = conn.Read(p)
	if err != nil {
		log.Error("Cannot get response from server: %v", err)
		return
	} else if string(p) != "ok" {
		log.Error("Invalid response: %s", string(p))
		return
	}

	log.Info("Header sent")

	start := time.Now()
	_, err = io.Copy(conn, f)
	if err != nil {
		log.Error("Fail to send file(%s): %v", fileName, err)
		return
	}
	spend := time.Since(start)
	log.Info("File sent, speed: %s/s", com.HumaneFileSize(uint64((fi.Size()*1000000000/int64(spend))/1024)))
}

func receiveHandler(conn net.Conn) {
	defer conn.Close()

	remoteAddr := conn.RemoteAddr().String()
	p := make([]byte, 1024)
	n, err := conn.Read(p)
	if err != nil {
		log.Error("Cannot read header(%s): %v", remoteAddr, err)
		return
	} else if n == 0 {
		log.Error("Empty header(%s)", remoteAddr)
		return
	}

	fileName := string(p[:n])
	log.Info("File: %s", fileName)
	os.MkdirAll(path.Dir(fileName), os.ModePerm)
	f, err := os.Create(fileName)
	if err != nil {
		log.Error("Fail to create file(%s:%s): %v", remoteAddr, fileName, err)
		return
	}
	defer f.Close()

	conn.Write([]byte("ok"))

	_, err = io.Copy(f, conn)
	for {
		buffer := make([]byte, 1024*200)
		n, err := conn.Read(buffer)
		//blockSize := int64(n)
		_ = n
		if err != nil && err != io.EOF {
			log.Error("Cannot read(%s:%s): %v", remoteAddr, fileName, err)
		} else if err == io.EOF {
			break
		}
	}
	if err != nil {
		log.Error("Fail to receive file(%s:%s): %v\n", remoteAddr, fileName, err)
		return
	}
	log.Info("File received: %s", fileName)
}

func main() {
	log.Info("App Version: %s", APP_VER)
	m := macaron.Classic()
	m.Use(macaron.Renderer())
	m.Use(middleware.Contexter())

	m.Get("/fibonacci", v1.Fibonacci)

	m.Run(setting.HTTPPort)
}

func runWeb(ctx *cli.Context) {
	if ctx.IsSet("config") {
		setting.CustomConf = ctx.String("config")
	}
	setting.NewContext()
	models.NewContext()

	log.Info("Peach %s", setting.AppVer)

	m := macaron.New()
	m.Use(macaron.Logger())
	m.Use(macaron.Recovery())
	m.Use(macaron.Statics(macaron.StaticOptions{
		SkipLogging: setting.ProdMode,
	}, "custom/public", "public", models.HTMLRoot))
	m.Use(i18n.I18n(i18n.Options{
		Files:       setting.Docs.Locales,
		DefaultLang: setting.Docs.Langs[0],
	}))
	tplDir := "templates"
	if setting.Page.UseCustomTpl {
		tplDir = "custom/templates"
	}
	m.Use(pongo2.Pongoer(pongo2.Options{
		Directory: tplDir,
	}))
	m.Use(middleware.Contexter())

	m.Get("/", routers.Home)
	m.Get("/docs", routers.Docs)
	m.Get("/docs/images/*", routers.DocsStatic)
	m.Get("/docs/*", routers.Protect, routers.Docs)
	m.Post("/hook", routers.Hook)
	m.Get("/search", routers.Search)
	m.Get("/*", routers.Pages)

	m.NotFound(routers.NotFound)

	listenAddr := fmt.Sprintf("0.0.0.0:%d", setting.HTTPPort)
	log.Info("%s Listen on %s", setting.Site.Name, listenAddr)
	log.Fatal("Fail to start Peach: %v", http.ListenAndServe(listenAddr, m))
}

func Hook(ctx *middleware.Context) {
	if ctx.Query("secret") != setting.Docs.Secret {
		ctx.Error(403)
		return
	}

	log.Info("Incoming hook update request")
	if err := models.ReloadDocs(); err != nil {
		ctx.Error(500)
		return
	}
	ctx.Status(200)
}

func main() {
	setting.AppVer = APP_VER

	log.Info("%s %s", setting.AppName, setting.AppVer)
	log.Info("Run Mode: %s", strings.Title(macaron.Env))

	m := macaron.Classic()
	m.Use(macaron.Static(setting.ArchivePath, macaron.StaticOptions{
		Prefix: "/archive",
	}))
	m.Use(pongo2.Pongoer())
	m.Use(middleware.Contexter())

	m.Get("/", func(ctx *middleware.Context) {
		ctx.Data["Targets"] = models.Targets
		ctx.HTML(200, "home")
	})
	if setting.Webhook.Mode == "test" {
		m.Get("/hook", func(ctx *middleware.Context) {
			if err := models.Build(ctx.Query("ref")); err != nil {
				ctx.JSON(500, map[string]interface{}{
					"error": err.Error(),
				})
				return
			}

			ctx.Status(200)
		})
	} else {
		m.Post("/hook", func(ctx *middleware.Context) {

		})
	}

	listenAddr := "0.0.0.0:" + com.ToStr(setting.HTTPPort)
	log.Info("Listen on http://%s", listenAddr)
	fmt.Println(http.ListenAndServe(listenAddr, m))
}

func runClient(ctx *cli.Context) {
	if len(setting.Cfg.Sync.RemoteAddr) == 0 {
		log.Fatal("Remote address cannot be empty")
	}

	watcher, err := fsnotify.NewWatcher()
	if err != nil {
		log.Fatal("Fail to create new watcher: %v", err)
	}
	defer watcher.Close()

	go func() {
		for {
			select {
			case e := <-watcher.Events:
				if isTmpFile(e.Name) {
					continue
				}

				if e.Op&fsnotify.Create == fsnotify.Create ||
					e.Op&fsnotify.Write == fsnotify.Write {
					if com.IsDir(e.Name) {
						log.Warn("Hasn't support directory yet")
						continue
					}
					sendFile(strings.TrimPrefix(e.Name, setting.WorkDir+"/"))
				}
			}
		}
	}()

	if err = watcher.Add(setting.WorkDir); err != nil {
		log.Fatal("Fail to watch directory(%s): %v", setting.WorkDir, err)
	}

	dirs, err := com.GetAllSubDirs(setting.WorkDir)
	if err != nil {
		log.Fatal("Fail to get subdirectories(%s): %v", setting.WorkDir, err)
	}

	for _, dir := range dirs {
		if err = watcher.Add(path.Join(setting.WorkDir, dir)); err != nil {
			log.Fatal("Fail to watch directory(%s): %v", path.Join(setting.WorkDir, dir), err)
		}
	}

	log.Info("Start watching...")
	select {}
}

func gracefulKill() {
	// Given process a chance to exit itself.
	runningCmd.Process.Signal(os.Interrupt)

	// Wait for timeout, and force kill after that.
	for i := 0; i < setting.Cfg.Run.InterruptTimeout; i++ {
		time.Sleep(1 * time.Second)

		if runningCmd.ProcessState == nil || runningCmd.ProcessState.Exited() {
			return
		}
	}

	log.Info("Fail to graceful kill, force killing...")
	runningCmd.Process.Kill()
}

func notify(cmds [][]string) {
	runningLock.Lock()
	defer func() {
		runningCmd = nil
		runningLock.Unlock()
	}()

	for _, cmd := range cmds {
		command := exec.Command(cmd[0], cmd[1:]...)
		command.Stdout = os.Stdout
		command.Stderr = os.Stderr
		if err := command.Start(); err != nil {
			log.Error("Fail to start command %v - %v", cmd, err)
			fmt.Print("\x07")
			return
		}

		log.Debug("Running %v", cmd)
		runningCmd = command
		done := make(chan error)
		go func() {
			done <- command.Wait()
		}()

		isShutdown := false
		select {
		case err := <-done:
			if isShutdown {
				return
			} else if err != nil {
				log.Warn("Fail to execute command %v - %v", cmd, err)
				fmt.Print("\x07")
				return
			}
		case <-shutdown:
			isShutdown = true
			gracefulKill()
			return
		}
	}
	log.Info("Notify operations are done!")
}

func runServer(ctx *cli.Context) {
	if len(setting.Cfg.Sync.ListenAddr) == 0 {
		log.Fatal("Listen address cannot be empty")
	}

	l, err := net.Listen("tcp", setting.Cfg.Sync.ListenAddr)
	if err != nil {
		log.Fatal("Fail to start server on listening(%s): %v", setting.Cfg.Sync.ListenAddr, err)
	}

	log.Info("Listening on %s...", setting.Cfg.Sync.ListenAddr)
	for {
		conn, err := l.Accept()
		if err != nil {
			if ne, ok := err.(net.Error); !ok || !ne.Temporary() {
				log.Warn("Network error when accpet: %v", err)
			}
			continue
		}
		go receiveHandler(conn)
	}
}

func notify(cmds [][]string) {
	runningLock.Lock()
	defer func() {
		runningCmd = nil
		runningLock.Unlock()
	}()

	for _, cmd := range cmds {
		command := exec.Command(cmd[0], cmd[1:]...)
		command.Stdout = os.Stdout
		command.Stderr = os.Stderr
		if err := command.Start(); err != nil {
			log.Error("Fail to start command %v", cmd)
			fmt.Print("\x07")
			return
		}
		runningCmd = command
		done := make(chan error)
		go func() {
			done <- command.Wait()
		}()

		select {
		case err := <-done:
			if err != nil {
				if strings.Contains(err.Error(), "signal: killed") {
					return
				}

				log.Warn("Fail to execute command %v", cmd)
				fmt.Print("\x07")
				return
			}
		}
	}
	log.Info("Notify operations are done!")
}

// CheckGoPackage checks package by import path.
func CheckPackage(importPath string, render macaron.Render, rt requestType) (*models.PkgInfo, error) {
	// Trim prefix of standard library.
	importPath = strings.TrimPrefix(importPath, "github.com/golang/go/tree/master/src")

	pinfo, err := models.GetPkgInfo(importPath)
	if rt != REQUEST_TYPE_REFRESH {
		if err == nil {
			fpath := setting.DocsGobPath + importPath + ".gob"
			if !setting.ProdMode && com.IsFile(fpath) {
				pdoc := new(Package)
				fr, err := os.Open(fpath)
				if err != nil {
					return nil, fmt.Errorf("read gob: %v", err)
				} else if err = gob.NewDecoder(fr).Decode(pdoc); err != nil {
					fr.Close()
					return nil, fmt.Errorf("decode gob: %v", err)
				}
				fr.Close()

				if err = renderDoc(render, pdoc, importPath); err != nil {
					return nil, fmt.Errorf("render cached doc: %v", err)
				}
			}

			pinfo.Views++
			if err = models.SavePkgInfo(pinfo); err != nil {
				return nil, fmt.Errorf("update views: %v", err)
			}
			return pinfo, nil
		}
	}

	// Just in case, should never happen.
	if err == models.ErrEmptyPackagePath {
		return nil, err
	}

	var etag string
	if err != models.ErrPackageVersionTooOld && pinfo != nil {
		etag = pinfo.Etag
	}

	// Fetch package from VCS.
	c := make(chan crawlResult, 1)
	go func() {
		pdoc, err := crawlDoc(importPath, etag)
		c <- crawlResult{pdoc, err}
	}()

	var pdoc *Package
	err = nil // Reset.
	select {
	case cr := <-c:
		if cr.err == nil {
			pdoc = cr.pdoc
		} else {
			err = cr.err
		}
	case <-time.After(setting.FetchTimeout):
		err = ErrFetchTimeout
	}

	if err != nil {
		if err == ErrPackageNotModified {
			log.Debug("Package has not been modified: %s", pinfo.ImportPath)
			// Update time so cannot refresh too often.
			pinfo.Created = time.Now().UTC().Unix()
			return pinfo, models.SavePkgInfo(pinfo)
		} else if err == ErrInvalidRemotePath {
			return nil, ErrInvalidRemotePath // Allow caller to make redirect to search.
		}
		return nil, fmt.Errorf("check package: %v", err)
	}

	if !setting.ProdMode {
		fpath := setting.DocsGobPath + importPath + ".gob"
		os.MkdirAll(path.Dir(fpath), os.ModePerm)
		fw, err := os.Create(fpath)
		if err != nil {
			return nil, fmt.Errorf("create gob: %v", err)
		}
		defer fw.Close()
		if err = gob.NewEncoder(fw).Encode(pdoc); err != nil {
			return nil, fmt.Errorf("encode gob: %v", err)
		}
	}

	log.Info("Walked package: %s, Goroutine #%d", pdoc.ImportPath, runtime.NumGoroutine())

	if err = renderDoc(render, pdoc, importPath); err != nil {
		return nil, fmt.Errorf("render doc: %v", err)
	}

	if pinfo != nil {
		pdoc.Id = pinfo.Id
	}

	pdoc.Created = time.Now().UTC().Unix()
	if err = models.SavePkgInfo(pdoc.PkgInfo); err != nil {
//.........这里部分代码省略.........