Golang osext.ExecutableFolder函數代碼示例

func Parse() error {
	// Change working dir to that of the executable
	exeFolder, _ := osext.ExecutableFolder()
	os.Chdir(exeFolder)

	f := flagconfig.New("gobin")
	f.StrParam("loglevel", "logging level (DEBUG, INFO, WARN, ERROR, FATAL)", "DEBUG")
	f.StrParam("logfile", "path to log file", "")
	f.StrParam("htmltemplates", "path to html templates file", filepath.Join("templates", "htmlTemplates.tmpl"))
	f.StrParam("texttemplates", "path to text templates file", filepath.Join("templates", "textTemplates.tmpl"))
	f.StrParam("staticpath", "path to static files folder", "static")
	f.IntParam("uidlength", "length of gob uid string", 4)
	f.IntParam("tokenlength", "length of the secure token string", 15)
	f.RequiredStrParam("storetype", "the data store to use")
	f.RequiredStrParam("storeconf", "a string of the form 'IP:PORT' to configure the data store")
	f.RequiredStrParam("domain", "the domain to use to for links")
	f.RequiredStrParam("pygmentizepath", "path to the pygmentize binary")
	f.RequiredStrParam("listen", "a string of the form 'IP:PORT' which program will listen on")
	f.FlagParam("V", "show version/build information", false)

	if err := f.Parse(); err != nil {
		return err
	}
	fcLock.Lock()
	defer fcLock.Unlock()
	fc = f
	//UIDLen = 4
	//StoreType = "REDIS"
	//Domain = "gobin.io"
	//Port = "6667"
	return nil
}

func DefaultAssetPath() string {
	var base string

	// If the current working directory is the go-ethereum dir
	// assume a debug build and use the source directory as
	// asset directory.
	pwd, _ := os.Getwd()
	if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal") {
		base = path.Join(pwd, "assets")
	} else {
		switch runtime.GOOS {
		case "darwin":
			// Get Binary Directory
			exedir, _ := osext.ExecutableFolder()
			base = filepath.Join(exedir, "../Resources")
		case "linux":
			base = "/usr/share/ethereal"
		case "window":
			fallthrough
		default:
			base = "."
		}
	}

	return base
}

func exeFolder() string {
	exeFolder, err := osext.ExecutableFolder()
	if err != nil {
		panic(err)
	}
	return exeFolder
}

func GetLogsDirForMe() (string, error) {
	processImageDir, err := osext.ExecutableFolder()
	if err != nil {
		return "", err
	}
	return filepath.Join(processImageDir, "logs"), nil
}

func (p *program) Start(s service.Service) error {
	runtime.GOMAXPROCS(runtime.NumCPU())
	p.exit = make(chan struct{})
	var err error

	p.execDir, err = osext.ExecutableFolder()
	if err != nil {
		return err
	}
	err = p.loadOrWriteConifg()
	if err != nil {
		return err
	}

	l, err := net.Listen("tcp", config.ListenOn)
	if err != nil {
		return err
	}
	p.listener = l

	if filepath.IsAbs(config.CacheFolder) {
		p.cacheDir = config.CacheFolder
	} else {
		p.cacheDir = filepath.Join(p.execDir, config.CacheFolder)
	}
	err = p.loadTemplate()
	if err != nil {
		return err
	}

	// Start should not block. Do the actual work async.
	logger.Infof("Starting. Listen to %s", config.ListenOn)
	go p.run(l)
	return nil
}

func getExeFilePath() (path string) {
	var err error
	if path, err = osext.ExecutableFolder(); err != nil {
		path = ""
	}
	return
}

func (conf *Configuration) SaveToFile(file string) error {
	if conf == nil {
		return errors.New("I need valid Configuration to save!")
	}

	var filename string
	var err error

	conf.Lock()
	defer conf.Unlock()

	if file == "" {
		if conf.filepath != "" {
			filename = conf.filepath
		} else {
			var path string
			path, err = osext.ExecutableFolder() //current bin directory
			if err == nil {
				filename = filepath.Join(path, "config.json")
			} else {
				filename = "config.json"
			}
		}
	} else if !filepath.IsAbs(file) {
		var path string
		path, err = osext.ExecutableFolder() //current bin directory
		if err == nil {
			filename = filepath.Join(path, file)
		} else {
			filename = file
		}
	}

	if filename != "" {
		var cbuf []byte
		cbuf, err = json.MarshalIndent(conf, "", "    ")
		if err == nil {
			err = ioutil.WriteFile(filename, cbuf, 0644)
		}
	}

	if err != nil {
		return errors.New("Cannot save config file! " + err.Error())
	}

	return nil
}

func main() {
	path, _ := osext.ExecutableFolder()
	os.Chdir(path)

	go func() {
		log.Println(http.ListenAndServe(goCfgMgr.Get("basic", "Host").(string)+":10022", nil))
	}()
	DoomAnalysis.Start()
}

func CwdToMe() error {
	exeDir, err := osext.ExecutableFolder()
	if err != nil {
		return err
	}
	err = os.Chdir(exeDir)
	if err != nil {
		return err
	}
	return nil
}

func ResourcePath() (string, error) {
	if len(*resource_path) > 0 {
		return *resource_path, nil
	}

	executablePath, err := osext.ExecutableFolder()
	if err != nil {
		return "", err
	}
	return filepath.Join(executablePath, "..", "src", "github.com", "EricBurnett", "WebCmd"), nil
}

// Resolve the path to our SQL scripts
func resolveSqlRoot(sqlroot string, playbookPath string) (string, error) {

	switch sqlroot {
	case SQLROOT_BINARY:
		return osext.ExecutableFolder()
	case SQLROOT_PLAYBOOK:
		return filepath.Abs(filepath.Dir(playbookPath))
	default:
		return sqlroot, nil
	}
}

// The qmlPrefix function returns an executable-related path of dir with qml files.
func qmlPrefix() (path string, err error) {
	path, err = osext.ExecutableFolder()
	if err != nil {
		return
	}
	switch runtime.GOOS {
	case "darwin":
		return filepath.Join(path, "..", "Resources", "qml"), nil
	default:
		return filepath.Join(path, "qml"), nil
	}
}

// find the directory containing the lush resource files. looks for a
// "templates" directory in the directory of the executable. if not found try
// to look for them in GOPATH ($GOPATH/src/github.com/....). Panics if no
// resources are found.
func resourceDir() string {
	root, err := osext.ExecutableFolder()
	if err == nil {
		if _, err = os.Stat(root + "/templates"); err == nil {
			return root
		}
	}
	// didn't find <dir of executable>/templates
	p, err := build.Default.Import(basePkg, "", build.FindOnly)
	if err != nil {
		panic("Couldn't find lush resource files")
	}
	return p.Dir
}

func init() {
	path, err := osext.ExecutableFolder()
	database, err = new(level.Database).SetOptions(
		new(level.Options).SetCreateIfMissing(
			true,
		).SetCacheSize(
			500 * level.Megabyte,
		),
	).OpenDB(path + "/leveldb/")

	if err != nil {
		log.Fatal("Error binding database: ", err)
	}

}

func readConfig() *Cfg {
	// note: log will not be configured to write to file yet,
	// so who knows who'll see the log output at this stage...

	file, e := ioutil.ReadFile("./config.json")
	if e != nil {
		log.Fatalf("Unable to read config.json: %s", e)
	}

	var cfg Cfg
	json.Unmarshal(file, &cfg)

	if cfg.ManagerPath == "" {
		log.Fatalf("Strange config: %v", cfg)
	}

	if cfg.ListenPort <= 0 {
		cfg.ListenPort = 8080
	}

	if cfg.LandlordPort <= 0 {
		cfg.LandlordPort = 6380
	}

	if cfg.TenantPortBase <= 0 {
		cfg.TenantPortBase = 6381
	}

	if cfg.MaxTenants <= 0 {
		cfg.MaxTenants = 10
	}

	if cfg.LogPath == "" {
		cfg.LogPath =
			func() string {
				f, e := osext.ExecutableFolder()
				if e != nil {
					log.Fatal("Unable to read executable path, add LogPath to config.json.", e)
				}

				return f + "srv.log"
			}()
	}

	return &cfg
}