Golang Logger.SayAs方法代码示例

func devdHandler(log termlog.Logger, route Route, templates *template.Template, logHeaders bool, ignoreHeaders []*regexp.Regexp, livereload bool, latency int) http.Handler {
	ci := inject.CopyInject{}
	if livereload {
		ci = injectLivereload
	}
	next := route.Endpoint.Handler(templates, ci)
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var sublog termlog.Logger
		if matchStringAny(ignoreHeaders, fmt.Sprintf("%s%s", route.Host, r.RequestURI)) {
			sublog = termlog.DummyLogger{}
		} else {
			sublog = log.Group()
		}
		timr := timer.Timer{}
		defer func() {
			timing := termlog.DefaultPalette.Timestamp.SprintFunc()("timing: ")
			sublog.SayAs(
				"timer",
				timing+timr.String(),
			)
			sublog.Done()
		}()
		timr.RequestHeaders()
		time.Sleep(time.Millisecond * time.Duration(latency))
		sublog.Say("%s %s", r.Method, r.URL)
		if logHeaders {
			LogHeader(sublog, r.Header)
		}
		ctx := timr.NewContext(context.Background())
		ctx = termlog.NewContext(ctx, sublog)
		next.ServeHTTPContext(
			ctx,
			&ResponseLogWriter{
				log:        sublog,
				rw:         w,
				timr:       &timr,
				logHeaders: logHeaders,
			},
			r,
		)
	})
}

// LogHeader logs a header
func LogHeader(log termlog.Logger, h http.Header) {
	max := 0
	for k := range h {
		if len(k) > max {
			max = len(k)
		}
	}
	for k, vals := range h {
		for _, v := range vals {
			pad := fmt.Sprintf(fmt.Sprintf("%%%ds", max-len(k)+1), " ")
			log.SayAs(
				"headers",
				"\t%s%s%s",
				color.BlueString(k)+":",
				pad,
				v,
			)
		}
	}
}

// name is '/'-separated, not filepath.Separator.
func (fserver *FileServer) serveFile(
	logger termlog.Logger,
	w http.ResponseWriter,
	r *http.Request,
	name string,
	redirect bool,
) {
	const indexPage = "/index.html"

	// redirect .../index.html to .../
	// can't use Redirect() because that would make the path absolute,
	// which would be a problem running under StripPrefix
	if strings.HasSuffix(r.URL.Path, indexPage) {
		logger.SayAs(
			"debug", "debug fileserver: redirecting %s -> ./", indexPage,
		)
		localRedirect(w, r, "./")
		return
	}

	f, err := fserver.Root.Open(name)
	if err != nil {
		logger.WarnAs("debug", "debug fileserver: %s", err)
		if err := notFound(fserver.Inject, fserver.Templates, w); err != nil {
			logger.Shout("Internal error: %s", err)
		}
		return
	}
	defer f.Close()

	d, err1 := f.Stat()
	if err1 != nil {
		logger.WarnAs("debug", "debug fileserver: %s", err)
		if err := notFound(fserver.Inject, fserver.Templates, w); err != nil {
			logger.Shout("Internal error: %s", err)
		}
		return
	}

	if redirect {
		// redirect to canonical path: / at end of directory url
		// r.URL.Path always begins with /
		url := r.URL.Path
		if d.IsDir() {
			if url[len(url)-1] != '/' {
				localRedirect(w, r, path.Base(url)+"/")
				return
			}
		} else {
			if url[len(url)-1] == '/' {
				localRedirect(w, r, "../"+path.Base(url))
				return
			}
		}
	}

	// use contents of index.html for directory, if present
	if d.IsDir() {
		index := name + indexPage
		ff, err := fserver.Root.Open(index)
		if err == nil {
			defer ff.Close()
			dd, err := ff.Stat()
			if err == nil {
				name = index
				d = dd
				f = ff
			}
		}
	}

	// Still a directory? (we didn't find an index.html file)
	if d.IsDir() {
		if checkLastModified(w, r, d.ModTime()) {
			return
		}
		dirList(fserver.Inject, logger, w, name, f, fserver.Templates)
		return
	}

	// serverContent will check modification time
	sizeFunc := func() (int64, error) { return d.Size(), nil }
	err = serveContent(fserver.Inject, w, r, d.Name(), d.ModTime(), sizeFunc, f)
	if err != nil {
		logger.Warn("Error serving file: %s", err)
	}
}