Update spf13/cobra

Signed-off-by: Daniel Nephin <dnephin@docker.com>

vendor.conf

@@ -36,7 +36,7 @@ github.com/pmezard/go-difflib v1.0.0
 github.com/russross/blackfriday 1d6b8e9301e720b08a8938b8c25c018285885438
 github.com/shurcooL/sanitized_anchor_name 10ef21a441db47d8b13ebcc5fd2310f636973c77
 github.com/sirupsen/logrus v1.0.3
-github.com/spf13/cobra 7b2c5ac9fc04fc5efafb60700713d4fa609b777b
+github.com/spf13/cobra 34ceca591bcf34a17a8b7bad5b3ce5f9c165bee5
 github.com/spf13/pflag 97afa5e7ca8a08a383cb259e06636b5e2cc7897f
 github.com/stretchr/testify 4d4bfba8f1d1027c4fdbe371823030df51419987
 github.com/theupdateframework/notary 05985dc5d1c71ee6c387e9cd276a00b9d424af53

vendor/github.com/spf13/cobra/README.md

@@ -224,10 +224,6 @@ func init() {
   viper.SetDefault("license", "apache")
 }
 
-func Execute() {
-  RootCmd.Execute()
-}
-
 func initConfig() {
   // Don't forget to read config either from cfgFile or from home directory!
   if cfgFile != "" {
@@ -522,7 +518,7 @@ around it. In fact, you can provide your own if you want.
 ### Defining your own help
 
 You can provide your own Help command or your own template for the default command to use
-with followind functions:
+with following functions:
 
 ```go
 cmd.SetHelpCommand(cmd *Command)

vendor/github.com/spf13/cobra/args.go

@@ -16,14 +16,14 @@ func legacyArgs(cmd *Command, args []string) error {
 		return nil
 	}
 
-	// root command with subcommands, do subcommand checking
+	// root command with subcommands, do subcommand checking.
 	if !cmd.HasParent() && len(args) > 0 {
 		return fmt.Errorf("unknown command %q for %q%s", args[0], cmd.CommandPath(), cmd.findSuggestions(args[0]))
 	}
 	return nil
 }
 
-// NoArgs returns an error if any args are included
+// NoArgs returns an error if any args are included.
 func NoArgs(cmd *Command, args []string) error {
 	if len(args) > 0 {
 		return fmt.Errorf("unknown command %q for %q", args[0], cmd.CommandPath())
@@ -31,7 +31,7 @@ func NoArgs(cmd *Command, args []string) error {
 	return nil
 }
 
-// OnlyValidArgs returns an error if any args are not in the list of ValidArgs
+// OnlyValidArgs returns an error if any args are not in the list of ValidArgs.
 func OnlyValidArgs(cmd *Command, args []string) error {
 	if len(cmd.ValidArgs) > 0 {
 		for _, v := range args {
@@ -43,21 +43,12 @@ func OnlyValidArgs(cmd *Command, args []string) error {
 	return nil
 }
 
-func stringInSlice(a string, list []string) bool {
+// ArbitraryArgs never returns an error.
-	for _, b := range list {
-		if b == a {
-			return true
-		}
-	}
-	return false
-}
-
-// ArbitraryArgs never returns an error
 func ArbitraryArgs(cmd *Command, args []string) error {
 	return nil
 }
 
-// MinimumNArgs returns an error if there is not at least N args
+// MinimumNArgs returns an error if there is not at least N args.
 func MinimumNArgs(n int) PositionalArgs {
 	return func(cmd *Command, args []string) error {
 		if len(args) < n {
@@ -67,7 +58,7 @@ func MinimumNArgs(n int) PositionalArgs {
 	}
 }
 
-// MaximumNArgs returns an error if there are more than N args
+// MaximumNArgs returns an error if there are more than N args.
 func MaximumNArgs(n int) PositionalArgs {
 	return func(cmd *Command, args []string) error {
 		if len(args) > n {
@@ -77,7 +68,7 @@ func MaximumNArgs(n int) PositionalArgs {
 	}
 }
 
-// ExactArgs returns an error if there are not exactly n args
+// ExactArgs returns an error if there are not exactly n args.
 func ExactArgs(n int) PositionalArgs {
 	return func(cmd *Command, args []string) error {
 		if len(args) != n {
@@ -87,7 +78,7 @@ func ExactArgs(n int) PositionalArgs {
 	}
 }
 
-// RangeArgs returns an error if the number of args is not within the expected range
+// RangeArgs returns an error if the number of args is not within the expected range.
 func RangeArgs(min int, max int) PositionalArgs {
 	return func(cmd *Command, args []string) error {
 		if len(args) < min || len(args) > max {

vendor/github.com/spf13/cobra/cobra.go

@@ -188,3 +188,12 @@ func ld(s, t string, ignoreCase bool) int {
 	}
 	return d[len(s)][len(t)]
 }
+
+func stringInSlice(a string, list []string) bool {
+	for _, b := range list {
+		if b == a {
+			return true
+		}
+	}
+	return false
+}

vendor/github.com/spf13/cobra/command.go

@@ -118,6 +118,10 @@ type Command struct {
 	// will be printed by generating docs for this command.
 	DisableAutoGenTag bool
 
+	// DisableFlagsInUseLine will disable the addition of [flags] to the usage
+	// line of a command when printing help or generating docs
+	DisableFlagsInUseLine bool
+
 	// DisableSuggestions disables the suggestions based on Levenshtein distance
 	// that go along with 'unknown command' messages.
 	DisableSuggestions bool
@@ -621,10 +625,8 @@ func (c *Command) Root() *Command {
 	return c
 }
 
-// ArgsLenAtDash will return the length of f.Args at the moment when a -- was
+// ArgsLenAtDash will return the length of c.Flags().Args at the moment
-// found during arg parsing. This allows your program to know which args were
+// when a -- was found during args parsing.
-// before the -- and which came after. (Description from
-// https://godoc.org/github.com/spf13/pflag#FlagSet.ArgsLenAtDash).
 func (c *Command) ArgsLenAtDash() int {
 	return c.Flags().ArgsLenAtDash()
 }
@@ -877,7 +879,7 @@ Simply type ` + c.Name() + ` help [path to command] for full details.`,
 	c.AddCommand(c.helpCommand)
 }
 
-// ResetCommands used for testing.
+// ResetCommands delete parent, subcommand and help command from c.
 func (c *Command) ResetCommands() {
 	c.parent = nil
 	c.commands = nil
@@ -996,6 +998,9 @@ func (c *Command) UseLine() string {
 	} else {
 		useline = c.Use
 	}
+	if c.DisableFlagsInUseLine {
+		return useline
+	}
 	if c.HasAvailableFlags() && !strings.Contains(useline, "[flags]") {
 		useline += " [flags]"
 	}
@@ -1163,7 +1168,7 @@ func (c *Command) HasAvailableSubCommands() bool {
 		}
 	}
 
-	// the command either has no sub comamnds, or no available (non deprecated/help/hidden)
+	// the command either has no sub commands, or no available (non deprecated/help/hidden)
 	// sub commands
 	return false
 }
@@ -1273,7 +1278,7 @@ func (c *Command) PersistentFlags() *flag.FlagSet {
 	return c.pflags
 }
 
-// ResetFlags is used in testing.
+// ResetFlags deletes all flags from command.
 func (c *Command) ResetFlags() {
 	c.flagErrorBuf = new(bytes.Buffer)
 	c.flagErrorBuf.Reset()