Golang services.EnsureRunning函數代碼示例

func ImportKey(do *definitions.Do) error {

	do.Name = "keys"
	do.Operations.ContainerNumber = 1
	if err := srv.EnsureRunning(do); err != nil {
		return err
	}

	do.Operations.Interactive = false
	dir := path.Join(ErisContainerRoot, "keys", "data", do.Address)
	do.Operations.Args = []string{"mkdir", dir} //need to mkdir for import
	if err := srv.ExecService(do); err != nil {
		return err
	}
	//src on host

	if do.Source == "" {
		do.Source = filepath.Join(KeysPath, "data", do.Address, do.Address)
	}
	//dest in container
	do.Destination = dir

	if err := data.ImportData(do); err != nil {
		return err
	}
	return nil
}

func MakeGenesisFile(do *def.Do) error {

	//otherwise it'll start its own keys server that won't have the key needed...
	do.Name = "keys"
	IfExit(srv.EnsureRunning(do))

	doThr := def.NowDo()
	doThr.Chain.ChainType = "throwaway" //for teardown
	doThr.Name = "default"
	doThr.Operations.ContainerNumber = 1
	doThr.Operations.PublishAllPorts = true

	logger.Infof("Starting chain from MakeGenesisFile =>\t%s\n", doThr.Name)
	if er := StartChain(doThr); er != nil {
		return fmt.Errorf("error starting chain %v\n", er)
	}

	doThr.Operations.Args = []string{"mintgen", "known", do.Chain.Name, fmt.Sprintf("--pub=%s", do.Pubkey)}
	doThr.Chain.Name = "default" //for teardown

	// pipe this output to /chains/chainName/genesis.json
	err := ExecChain(doThr)
	if err != nil {
		logger.Printf("exec chain err: %v\nCleaning up...\n", err)
		doThr.Rm = true
		doThr.RmD = true
		if err := CleanUp(doThr); err != nil {
			return err
		}
	}

	doThr.Rm = true
	doThr.RmD = true
	return CleanUp(doThr) // doesn't clean up keys but that's ~ ok b/c it's about to be used...
}

func ensureRunning() {
	doNow := definitions.NowDo()
	doNow.Name = "ipfs"
	err := services.EnsureRunning(doNow)
	if err != nil {
		fmt.Printf("Failed to ensure IPFS is running: %v", err)
		return
	}
	logger.Infoln("IPFS is running.")
}

func ConvertKey(do *definitions.Do) error {

	do.Name = "keys"
	if err := srv.EnsureRunning(do); err != nil {
		return err
	}

	do.Operations.Args = []string{"mintkey", "mint", do.Address}
	if err := srv.ExecService(do); err != nil {
		return err
	}
	return nil
}

func GenerateKey(do *definitions.Do) error {
	do.Name = "keys"
	do.Operations.ContainerNumber = 1

	if err := srv.EnsureRunning(do); err != nil {
		return err
	}
	do.Operations.Interactive = false
	do.Operations.Args = []string{"eris-keys", "gen", "--no-pass"}

	if err := srv.ExecService(do); err != nil {
		return err
	}
	return nil
}

func GetPubKey(do *definitions.Do) error {

	do.Name = "keys"
	do.Operations.ContainerNumber = 1
	if err := srv.EnsureRunning(do); err != nil {
		return err
	}

	do.Operations.Interactive = false
	do.Operations.Args = []string{"eris-keys", "pub", "--addr", do.Address}

	if err := srv.ExecService(do); err != nil {
		return err
	}
	return nil
}

func GetFiles(do *definitions.Do) error {
	doNow := definitions.NowDo()
	doNow.Name = "ipfs"
	err := services.EnsureRunning(doNow)
	if err != nil {
		return err
	}
	logger.Infoln("IPFS is running.")
	logger.Debugf("Gonna Import a file =>\t\t%s:%v\n", do.Name, do.Path)
	err = importFile(do.Name, do.Path)
	if err != nil {
		return err
	}
	do.Result = "success"
	return nil
}

func ListPinned(do *definitions.Do) error {
	var hash string
	doNow := definitions.NowDo()
	doNow.Name = "ipfs"
	err := services.EnsureRunning(doNow)
	if err != nil {
		return err
	}
	logger.Infoln("IPFS is running.")
	logger.Debugf("Listing files pinned locally")
	hash, err = listPinned()
	if err != nil {
		return err
	}
	do.Result = hash
	return nil
}

func ListFiles(do *definitions.Do) error {
	var hash string
	doNow := definitions.NowDo()
	doNow.Name = "ipfs"
	err := services.EnsureRunning(doNow)
	if err != nil {
		return err
	}
	logger.Infoln("IPFS is running.")
	logger.Debugf("Gonna List an object =>\t\t%s:%v\n", do.Name, do.Path)
	hash, err = listFile(do.Name)
	if err != nil {
		return err
	}
	do.Result = hash
	return nil
}

func ListKeys(do *definitions.Do) error {
	if do.Host {
		keysPath := filepath.Join(KeysPath, "data")
		addrs, err := ioutil.ReadDir(keysPath)
		if err != nil {
			return err
		}
		hostAddrs := make([]string, len(addrs))
		for i, addr := range addrs {
			hostAddrs[i] = addr.Name()
		}
		do.Result = strings.Join(hostAddrs, ",")
		log.WithField("=>", hostAddrs[0]).Warn("The keys on your host kind marmot:")
		hostAddrs = append(hostAddrs[:0], hostAddrs[1:]...)
		for _, addr := range hostAddrs {
			log.WithField("=>", addr).Warn()
		}
	}

	if do.Container {
		keysOut := new(bytes.Buffer)
		config.GlobalConfig.Writer = keysOut
		do.Name = "keys"
		do.Operations.ContainerNumber = 1
		if err := srv.EnsureRunning(do); err != nil {
			return err
		}

		do.Operations.Interactive = false
		do.Operations.Args = []string{"ls", "/home/eris/.eris/keys/data"}

		if err := srv.ExecService(do); err != nil {
			return err
		}
		keysOutString := strings.Split(util.TrimString(string(keysOut.Bytes())), "\n")
		do.Result = strings.Join(keysOutString, ",")
		log.WithField("=>", keysOutString[0]).Warn("The keys in your container kind marmot:")
		keysOutString = append(keysOutString[:0], keysOutString[1:]...)
		for _, addr := range keysOutString {
			log.WithField("=>", addr).Warn()
		}

	}
	return nil
}

func ExportKey(do *definitions.Do) error {

	do.Name = "keys"
	do.Operations.ContainerNumber = 1
	if err := srv.EnsureRunning(do); err != nil {
		return err
	}
	//destination on host
	if do.Destination == "" {
		do.Destination = filepath.Join(KeysPath, "data")
	}
	//src in container
	do.Source = path.Join(ErisContainerRoot, "keys", "data", do.Address)
	if err := data.ExportData(do); err != nil {
		return err
	}
	return nil
}

// export a chain definition file
func ExportChain(do *definitions.Do) error {
	chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
	if err != nil {
		return err
	}
	if IsChainExisting(chain) {
		doNow := definitions.NowDo()
		doNow.Name = "ipfs"
		services.EnsureRunning(doNow)

		hash, err := exportFile(do.Name)
		if err != nil {
			return err
		}
		log.Warn(hash)

	} else {
		return fmt.Errorf(`I don't known of that chain.
Please retry with a known chain.
To find known chains use: eris chains ls --known`)
	}
	return nil
}

func EnsureService(cmd *cobra.Command, args []string) {
	IfExit(ArgCheck(1, "ge", cmd, args))
	do.Name = args[0]
	IfExit(srv.EnsureRunning(do))
}