Golang Logger.Info方法代码示例

// HTTP logging handler
func LoggingHandler(inner http.Handler, log *logging.Logger) http.Handler{
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request){
		sw := MakeLogger(w)
		inner.ServeHTTP(sw, r)
		log.Info(buildCommonLogLine(r, *r.URL, time.Now(), sw.Status(), sw.Size()))
	})
}

// Get executes a `go get` with a cache support.
func Get(log *log.Logger, flags *GetFlags) error {
	// Check GOPATH
	if gopath == "" {
		return maskAny(errors.New("Specify GOPATH"))
	}
	gopathDir := strings.Split(gopath, string(os.PathListSeparator))[0]

	// Get cache dir
	cachedir, cacheIsValid, err := cache.Dir(flags.Package, cacheValid)
	if err != nil {
		return maskAny(err)
	}

	if !cacheIsValid {
		// Cache has become invalid
		log.Info(updating("Refreshing cache of %s"), flags.Package)
		// Execute `go get` towards the cache directory
		if err := runGoGet(log, flags.Package, cachedir); err != nil {
			return maskAny(err)
		}
	}

	// Sync with local gopath
	if err := os.MkdirAll(gopathDir, 0777); err != nil {
		return maskAny(err)
	}
	if err := util.ExecPrintError(nil, "rsync", "-a", filepath.Join(cachedir, srcDir), gopathDir); err != nil {
		return maskAny(err)
	}

	return nil
}

func NewRateLimiter(cfg config.RateLimiting, red *redis.Pool, logger *logging.Logger) (RateLimitingMiddleware, error) {
	t := new(RedisSimpleRateThrottler)
	t.burstSize = int64(cfg.Burst)
	t.requestsPerSecond = int64(cfg.RequestsPerSecond)
	t.redisPool = red
	t.logger = logger

	if w, err := time.ParseDuration(cfg.Window); err != nil {
		return nil, err
	} else {
		t.window = w
	}

	logger.Info("Initialize rate limiter (burst size %d)", t.burstSize)

	return t, nil
}

// Get executes a `go get` with a cache support.
func Vendor(log *log.Logger, flags *VendorFlags) error {
	// Get cache dir
	cachedir, _, err := cache.Dir(flags.Package, time.Millisecond)
	if err != nil {
		return maskAny(err)
	}

	// Cache has become invalid
	log.Info(updating("Fetching %s"), flags.Package)
	// Execute `go get` towards the cache directory
	if err := runGoGet(log, flags.Package, cachedir); err != nil {
		return maskAny(err)
	}

	// Sync with vendor dir
	if err := os.MkdirAll(flags.VendorDir, 0777); err != nil {
		return maskAny(err)
	}
	if err := util.ExecPrintError(nil, "rsync", "--exclude", ".git", "-a", filepath.Join(cachedir, srcDir)+"/", flags.VendorDir); err != nil {
		return maskAny(err)
	}

	return nil
}

func Release(log *log.Logger, flags *Flags) error {
	// Detect environment
	hasMakefile := false
	isDev := flags.ReleaseType == "dev"
	if _, err := os.Stat(makefileFile); err == nil {
		hasMakefile = true
		log.Info("Found %s", makefileFile)
	}

	hasGruntfile := false
	if _, err := os.Stat(gruntfileFile); err == nil {
		hasGruntfile = true
		log.Info("Found %s", gruntfileFile)
	}

	hasDockerfile := false
	if _, err := os.Stat(dockerfileFile); err == nil {
		hasDockerfile = true
		log.Info("Found %s", dockerfileFile)
	}

	// Read the current version and name
	info, err := GetProjectInfo()
	if err != nil {
		return maskAny(err)
	}

	log.Info("Found old version %s", info.Version)
	version, err := semver.NewVersion(info.Version)
	if err != nil {
		return maskAny(err)
	}

	// Check repository state
	if !isDev {
		if err := checkRepoClean(log, info.GitBranch); err != nil {
			return maskAny(err)
		}
	}

	// Bump version
	switch flags.ReleaseType {
	case "major":
		version.Major++
		version.Minor = 0
		version.Patch = 0
	case "minor":
		version.Minor++
		version.Patch = 0
	case "patch":
		version.Patch++
	case "dev":
		// Do not change version
	default:
		return errgo.Newf("Unknown release type %s", flags.ReleaseType)
	}
	version.Metadata = ""

	// Write new release version
	if !isDev {
		if err := writeVersion(log, version.String(), info.Manifests, info.GradleConfigFile, false); err != nil {
			return maskAny(err)
		}
	}

	// Build project
	if hasGruntfile && !info.NoGrunt {
		if _, err := os.Stat(nodeModulesFolder); os.IsNotExist(err) {
			log.Info("Folder %s not found", nodeModulesFolder)
			if err := util.ExecPrintError(log, "npm", "install"); err != nil {
				return maskAny(err)
			}
		}
		if err := util.ExecPrintError(log, "grunt", "build-release"); err != nil {
			return maskAny(err)
		}
	}
	if hasMakefile {
		// Clean first
		if !isDev {
			if err := util.ExecPrintError(log, "make", info.Targets.CleanTarget); err != nil {
				return maskAny(err)
			}
		}
		// Now build
		makeArgs := []string{}
		if info.Targets.ReleaseTarget != "" {
			makeArgs = append(makeArgs, info.Targets.ReleaseTarget)
		}
		if err := util.ExecPrintError(log, "make", makeArgs...); err != nil {
			return maskAny(err)
		}
	}

	if hasDockerfile {
		// Build docker images
		tagVersion := version.String()
		if isDev {
			tagVersion = strings.Replace(time.Now().Format("2006-01-02-15-04-05"), "-", "", -1)
		}
//.........这里部分代码省略.........

func buildDispatcher(
	startup *StartupConfig,
	cfg *config.Configuration,
	consul *api.Client,
	handler *proxy.ProxyHandler,
	rpool *redis.Pool,
	logger *logging.Logger,
	lastIndex uint64,
) (dispatcher.Dispatcher, uint64, error) {
	var disp dispatcher.Dispatcher
	var err error
	var meta *api.QueryMeta
	var configs api.KVPairs
	var localCfg config.Configuration = *cfg
	var appCfgs map[string]config.Application = make(map[string]config.Application)

	dispLogger := logging.MustGetLogger("dispatch")

	switch startup.DispatchingMode {
	case "path":
		disp, err = dispatcher.NewPathBasedDispatcher(&localCfg, dispLogger, handler)
	case "host":
		disp, err = dispatcher.NewHostBasedDispatcher(&localCfg, dispLogger, handler)
	default:
		err = fmt.Errorf("unsupported dispatching mode: '%s'", startup.DispatchingMode)
	}

	if err != nil {
		return nil, 0, fmt.Errorf("error while creating proxy builder: %s", err)
	}

	applicationConfigBase := startup.ConsulBaseKey + "/applications"
	queryOpts := api.QueryOptions{
		WaitIndex: lastIndex,
		WaitTime:  30 * time.Minute,
	}

	logger.Info("loading gateway config from KV %s", startup.ConsulBaseKey)
	configs, meta, err = consul.KV().List(startup.ConsulBaseKey, &queryOpts)
	if err != nil {
		return nil, 0, err
	}

	for _, cfgKVPair := range configs {
		logger.Debug("found KV pair with key '%s'", cfgKVPair.Key)

		switch strings.TrimPrefix(startup.ConsulBaseKey+"/", cfgKVPair.Key) {
		case "authentication":
			if err := json.Unmarshal(cfgKVPair.Value, &localCfg.Authentication); err != nil {
				return nil, meta.LastIndex, fmt.Errorf("JSON error on consul KV pair '%s': %s", cfgKVPair.Key, err)
			}
		case "rate_limiting":
			if err := json.Unmarshal(cfgKVPair.Value, &localCfg.RateLimiting); err != nil {
				return nil, meta.LastIndex, fmt.Errorf("JSON error on consul KV pair '%s': %s", cfgKVPair.Key, err)
			}
		}

		if strings.HasPrefix(cfgKVPair.Key, applicationConfigBase) {
			var appCfg config.Application

			if err := json.Unmarshal(cfgKVPair.Value, &appCfg); err != nil {
				return nil, meta.LastIndex, fmt.Errorf("JSON error on consul KV pair '%s': %s", cfgKVPair.Key, err)
			}

			name := strings.TrimPrefix(cfgKVPair.Key, applicationConfigBase+"/")
			appCfgs[name] = appCfg
		}
	}

	authHandler, err := auth.NewAuthDecorator(&localCfg.Authentication, rpool, logging.MustGetLogger("auth"), startup.UiDir)
	if err != nil {
		return nil, meta.LastIndex, err
	}

	rlim, err := ratelimit.NewRateLimiter(localCfg.RateLimiting, rpool, logging.MustGetLogger("ratelimiter"))
	if err != nil {
		logger.Fatal(fmt.Sprintf("error while configuring rate limiting: %s", err))
	}

	cch := cache.NewCache(4096)

	// Order is important here! Behaviours will be called in LIFO order;
	// behaviours that are added last will be called first!
	disp.AddBehaviour(dispatcher.NewCachingBehaviour(cch))
	disp.AddBehaviour(dispatcher.NewAuthenticationBehaviour(authHandler))
	disp.AddBehaviour(dispatcher.NewRatelimitBehaviour(rlim))

	for name, appCfg := range appCfgs {
		logger.Info("registering application '%s' from Consul", name)
		if err := disp.RegisterApplication(name, appCfg); err != nil {
			return nil, meta.LastIndex, err
		}
	}

	for name, appCfg := range localCfg.Applications {
		logger.Info("registering application '%s' from local config", name)
		if err := disp.RegisterApplication(name, appCfg); err != nil {
			return nil, meta.LastIndex, err
		}
	}
//.........这里部分代码省略.........