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Golang Context.String方法代码示例

本文整理汇总了Golang中github.com/algoadv/etcd/Godeps/_workspace/src/github.com/codegangsta/cli.Context.String方法的典型用法代码示例。如果您正苦于以下问题:Golang Context.String方法的具体用法?Golang Context.String怎么用?Golang Context.String使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/algoadv/etcd/Godeps/_workspace/src/github.com/codegangsta/cli.Context的用法示例。


在下文中一共展示了Context.String方法的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: handleBackup

// handleBackup handles a request that intends to do a backup.
func handleBackup(c *cli.Context) {
	srcSnap := path.Join(c.String("data-dir"), "member", "snap")
	destSnap := path.Join(c.String("backup-dir"), "member", "snap")
	srcWAL := path.Join(c.String("data-dir"), "member", "wal")
	destWAL := path.Join(c.String("backup-dir"), "member", "wal")

	if err := os.MkdirAll(destSnap, 0700); err != nil {
		log.Fatalf("failed creating backup snapshot dir %v: %v", destSnap, err)
	}
	ss := snap.New(srcSnap)
	snapshot, err := ss.Load()
	if err != nil && err != snap.ErrNoSnapshot {
		log.Fatal(err)
	}
	var walsnap walpb.Snapshot
	if snapshot != nil {
		walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
		newss := snap.New(destSnap)
		if err := newss.SaveSnap(*snapshot); err != nil {
			log.Fatal(err)
		}
	}

	w, err := wal.OpenForRead(srcWAL, walsnap)
	if err != nil {
		log.Fatal(err)
	}
	defer w.Close()
	wmetadata, state, ents, err := w.ReadAll()
	switch err {
	case nil:
	case wal.ErrSnapshotNotFound:
		fmt.Printf("Failed to find the match snapshot record %+v in wal %v.", walsnap, srcWAL)
		fmt.Printf("etcdctl will add it back. Start auto fixing...")
	default:
		log.Fatal(err)
	}
	var metadata etcdserverpb.Metadata
	pbutil.MustUnmarshal(&metadata, wmetadata)
	idgen := idutil.NewGenerator(0, time.Now())
	metadata.NodeID = idgen.Next()
	metadata.ClusterID = idgen.Next()

	neww, err := wal.Create(destWAL, pbutil.MustMarshal(&metadata))
	if err != nil {
		log.Fatal(err)
	}
	defer neww.Close()
	if err := neww.Save(state, ents); err != nil {
		log.Fatal(err)
	}
	if err := neww.SaveSnapshot(walsnap); err != nil {
		log.Fatal(err)
	}
}
开发者ID:algoadv,项目名称:etcd,代码行数:56,代码来源:backup_command.go

示例2: rmCommandFunc

// rmCommandFunc executes the "rm" command.
func rmCommandFunc(c *cli.Context, ki client.KeysAPI) {
	if len(c.Args()) == 0 {
		handleError(ExitBadArgs, errors.New("key required"))
	}
	key := c.Args()[0]
	recursive := c.Bool("recursive")
	dir := c.Bool("dir")
	prevValue := c.String("with-value")
	prevIndex := c.Int("with-index")

	ctx, cancel := contextWithTotalTimeout(c)
	resp, err := ki.Delete(ctx, key, &client.DeleteOptions{PrevIndex: uint64(prevIndex), PrevValue: prevValue, Dir: dir, Recursive: recursive})
	cancel()
	if err != nil {
		handleError(ExitServerError, err)
	}

	if !resp.Node.Dir {
		printResponseKey(resp, c.GlobalString("output"))
	}
}
开发者ID:algoadv,项目名称:etcd,代码行数:22,代码来源:rm_command.go

示例3: setCommandFunc

// setCommandFunc executes the "set" command.
func setCommandFunc(c *cli.Context, ki client.KeysAPI) {
	if len(c.Args()) == 0 {
		handleError(ExitBadArgs, errors.New("key required"))
	}
	key := c.Args()[0]
	value, err := argOrStdin(c.Args(), os.Stdin, 1)
	if err != nil {
		handleError(ExitBadArgs, errors.New("value required"))
	}

	ttl := c.Int("ttl")
	prevValue := c.String("swap-with-value")
	prevIndex := c.Int("swap-with-index")

	ctx, cancel := contextWithTotalTimeout(c)
	resp, err := ki.Set(ctx, key, value, &client.SetOptions{TTL: time.Duration(ttl) * time.Second, PrevIndex: uint64(prevIndex), PrevValue: prevValue})
	cancel()
	if err != nil {
		handleError(ExitServerError, err)
	}

	printResponseKey(resp, c.GlobalString("output"))
}
开发者ID:algoadv,项目名称:etcd,代码行数:24,代码来源:set_command.go

示例4: handleImportSnap

func handleImportSnap(c *cli.Context) {
	d, err := ioutil.ReadFile(c.String("snap"))
	if err != nil {
		if c.String("snap") == "" {
			fmt.Printf("no snapshot file provided (use --snap)\n")
		} else {
			fmt.Printf("cannot read snapshot file %s\n", c.String("snap"))
		}
		os.Exit(1)
	}

	st := store.New()
	err = st.Recovery(d)

	wg := &sync.WaitGroup{}
	setc := make(chan set)
	concurrent := c.Int("c")
	fmt.Printf("starting to import snapshot %s with %d clients\n", c.String("snap"), concurrent)
	for i := 0; i < concurrent; i++ {
		go runSet(mustNewKeyAPI(c), setc, wg)
	}

	all, err := st.Get("/", true, true)
	if err != nil {
		handleError(ExitServerError, err)
	}
	n := copyKeys(all.Node, setc)

	hiddens := c.StringSlice("hidden")
	for _, h := range hiddens {
		allh, err := st.Get(h, true, true)
		if err != nil {
			handleError(ExitServerError, err)
		}
		n += copyKeys(allh.Node, setc)
	}
	close(setc)
	wg.Wait()
	fmt.Printf("finished importing %d keys\n", n)
}
开发者ID:algoadv,项目名称:etcd,代码行数:40,代码来源:import_snap_command.go

示例5: roleGrantRevoke

func roleGrantRevoke(c *cli.Context, grant bool) {
	path := c.String("path")
	if path == "" {
		fmt.Fprintln(os.Stderr, "No path specified; please use `-path`")
		os.Exit(1)
	}
	if pathutil.CanonicalURLPath(path) != path {
		fmt.Fprintf(os.Stderr, "Not canonical path; please use `-path=%s`\n", pathutil.CanonicalURLPath(path))
		os.Exit(1)
	}

	read := c.Bool("read")
	write := c.Bool("write")
	rw := c.Bool("readwrite")
	permcount := 0
	for _, v := range []bool{read, write, rw} {
		if v {
			permcount++
		}
	}
	if permcount != 1 {
		fmt.Fprintln(os.Stderr, "Please specify exactly one of -read, -write or -readwrite")
		os.Exit(1)
	}
	var permType client.PermissionType
	switch {
	case read:
		permType = client.ReadPermission
	case write:
		permType = client.WritePermission
	case rw:
		permType = client.ReadWritePermission
	}

	api, role := mustRoleAPIAndName(c)
	ctx, cancel := contextWithTotalTimeout(c)
	defer cancel()
	currentRole, err := api.GetRole(ctx, role)
	if err != nil {
		fmt.Fprintln(os.Stderr, err.Error())
		os.Exit(1)
	}
	var newRole *client.Role
	if grant {
		newRole, err = api.GrantRoleKV(ctx, role, []string{path}, permType)
	} else {
		newRole, err = api.RevokeRoleKV(ctx, role, []string{path}, permType)
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, err.Error())
		os.Exit(1)
	}
	if reflect.DeepEqual(newRole, currentRole) {
		if grant {
			fmt.Printf("Role unchanged; already granted")
		} else {
			fmt.Printf("Role unchanged; already revoked")
		}
	}

	fmt.Printf("Role %s updated\n", role)
}
开发者ID:algoadv,项目名称:etcd,代码行数:62,代码来源:role_commands.go


注:本文中的github.com/algoadv/etcd/Godeps/_workspace/src/github.com/codegangsta/cli.Context.String方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。