refactor: urfave v2

vendor/github.com/urfave/cli/v2/.flake8

@@ -0,0 +1,2 @@
+[flake8]
+max-line-length = 120

vendor/github.com/urfave/cli/v2/.gitignore

@@ -0,0 +1,14 @@
+*.coverprofile
+*.exe
+*.orig
+.*envrc
+.envrc
+.idea
+# goimports is installed here if not available
+/.local/
+/site/
+coverage.txt
+internal/*/built-example
+vendor
+/cmd/urfave-cli-genflags/urfave-cli-genflags
+*.exe

vendor/github.com/urfave/cli/v2/.golangci.yaml

@@ -0,0 +1,4 @@
+# https://golangci-lint.run/usage/configuration/
+linters:
+  enable:
+    - misspell

vendor/github.com/urfave/cli/v2/CODE_OF_CONDUCT.md

@@ -0,0 +1,75 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance, race,
+religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting urfave-governance@googlegroups.com, a members-only group
+that is world-postable. All complaints will be reviewed and investigated and
+will result in a response that is deemed necessary and appropriate to the
+circumstances. The project team is obligated to maintain confidentiality with
+regard to the reporter of an incident. Further details of specific enforcement
+policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+

vendor/github.com/urfave/cli/v2/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 urfave/cli maintainers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/urfave/cli/v2/Makefile

@@ -0,0 +1,26 @@
+# NOTE: this Makefile is meant to provide a simplified entry point for humans to
+# run all of the critical steps to verify one's changes are harmonious in
+# nature. Keeping target bodies to one line each and abstaining from make magic
+# are very important so that maintainers and contributors can focus their
+# attention on files that are primarily Go.
+
+GO_RUN_BUILD := go run internal/build/build.go
+
+.PHONY: all
+all: generate vet test check-binary-size gfmrun yamlfmt v2diff
+
+# NOTE: this is a special catch-all rule to run any of the commands
+# defined in internal/build/build.go with optional arguments passed
+# via GFLAGS (global flags) and FLAGS (command-specific flags), e.g.:
+#
+#   $ make test GFLAGS='--packages cli'
+%:
+	$(GO_RUN_BUILD) $(GFLAGS) $* $(FLAGS)
+
+.PHONY: docs
+docs:
+	mkdocs build
+
+.PHONY: serve-docs
+serve-docs:
+	mkdocs serve

vendor/github.com/urfave/cli/v2/README.md

@@ -0,0 +1,19 @@
+# cli
+
+[![Run Tests](https://github.com/urfave/cli/actions/workflows/cli.yml/badge.svg?branch=v2-maint)](https://github.com/urfave/cli/actions/workflows/cli.yml)
+[![Go Reference](https://pkg.go.dev/badge/github.com/urfave/cli/v2.svg)](https://pkg.go.dev/github.com/urfave/cli/v2)
+[![Go Report Card](https://goreportcard.com/badge/github.com/urfave/cli/v2)](https://goreportcard.com/report/github.com/urfave/cli/v2)
+[![codecov](https://codecov.io/gh/urfave/cli/branch/v2-maint/graph/badge.svg?token=t9YGWLh05g)](https://app.codecov.io/gh/urfave/cli/tree/v2-maint)
+
+cli is a simple, fast, and fun package for building command line apps in Go. The
+goal is to enable developers to write fast and distributable command line
+applications in an expressive way.
+
+## Documentation
+
+More documentation is available in [`./docs`](./docs) or the hosted
+documentation site at <https://cli.urfave.org>.
+
+## License
+
+See [`LICENSE`](./LICENSE)

vendor/github.com/urfave/cli/v2/app.go

@@ -0,0 +1,536 @@
+package cli
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+)
+
+const suggestDidYouMeanTemplate = "Did you mean %q?"
+
+var (
+	changeLogURL            = "https://github.com/urfave/cli/blob/main/docs/CHANGELOG.md"
+	appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
+	contactSysadmin         = "This is an error in the application.  Please contact the distributor of this application if this is not you."
+	errInvalidActionType    = NewExitError("ERROR invalid Action type. "+
+		fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error).  %s", contactSysadmin)+
+		fmt.Sprintf("See %s", appActionDeprecationURL), 2)
+	ignoreFlagPrefix = "test." // this is to ignore test flags when adding flags from other packages
+
+	SuggestFlag               SuggestFlagFunc    = nil // initialized in suggestions.go unless built with urfave_cli_no_suggest
+	SuggestCommand            SuggestCommandFunc = nil // initialized in suggestions.go unless built with urfave_cli_no_suggest
+	SuggestDidYouMeanTemplate string             = suggestDidYouMeanTemplate
+)
+
+// App is the main structure of a cli application. It is recommended that
+// an app be created with the cli.NewApp() function
+type App struct {
+	// The name of the program. Defaults to path.Base(os.Args[0])
+	Name string
+	// Full name of command for help, defaults to Name
+	HelpName string
+	// Description of the program.
+	Usage string
+	// Text to override the USAGE section of help
+	UsageText string
+	// Whether this command supports arguments
+	Args bool
+	// Description of the program argument format.
+	ArgsUsage string
+	// Version of the program
+	Version string
+	// Description of the program
+	Description string
+	// DefaultCommand is the (optional) name of a command
+	// to run if no command names are passed as CLI arguments.
+	DefaultCommand string
+	// List of commands to execute
+	Commands []*Command
+	// List of flags to parse
+	Flags []Flag
+	// Boolean to enable bash completion commands
+	EnableBashCompletion bool
+	// Boolean to hide built-in help command and help flag
+	HideHelp bool
+	// Boolean to hide built-in help command but keep help flag.
+	// Ignored if HideHelp is true.
+	HideHelpCommand bool
+	// Boolean to hide built-in version flag and the VERSION section of help
+	HideVersion bool
+	// categories contains the categorized commands and is populated on app startup
+	categories CommandCategories
+	// flagCategories contains the categorized flags and is populated on app startup
+	flagCategories FlagCategories
+	// An action to execute when the shell completion flag is set
+	BashComplete BashCompleteFunc
+	// An action to execute before any subcommands are run, but after the context is ready
+	// If a non-nil error is returned, no subcommands are run
+	Before BeforeFunc
+	// An action to execute after any subcommands are run, but after the subcommand has finished
+	// It is run even if Action() panics
+	After AfterFunc
+	// The action to execute when no subcommands are specified
+	Action ActionFunc
+	// Execute this function if the proper command cannot be found
+	CommandNotFound CommandNotFoundFunc
+	// Execute this function if a usage error occurs
+	OnUsageError OnUsageErrorFunc
+	// Execute this function when an invalid flag is accessed from the context
+	InvalidFlagAccessHandler InvalidFlagAccessFunc
+	// Compilation date
+	Compiled time.Time
+	// List of all authors who contributed
+	Authors []*Author
+	// Copyright of the binary if any
+	Copyright string
+	// Reader reader to write input to (useful for tests)
+	Reader io.Reader
+	// Writer writer to write output to
+	Writer io.Writer
+	// ErrWriter writes error output
+	ErrWriter io.Writer
+	// ExitErrHandler processes any error encountered while running an App before
+	// it is returned to the caller. If no function is provided, HandleExitCoder
+	// is used as the default behavior.
+	ExitErrHandler ExitErrHandlerFunc
+	// Other custom info
+	Metadata map[string]interface{}
+	// Carries a function which returns app specific info.
+	ExtraInfo func() map[string]string
+	// CustomAppHelpTemplate the text template for app help topic.
+	// cli.go uses text/template to render templates. You can
+	// render custom help text by setting this variable.
+	CustomAppHelpTemplate string
+	// SliceFlagSeparator is used to customize the separator for SliceFlag, the default is ","
+	SliceFlagSeparator string
+	// DisableSliceFlagSeparator is used to disable SliceFlagSeparator, the default is false
+	DisableSliceFlagSeparator bool
+	// Boolean to enable short-option handling so user can combine several
+	// single-character bool arguments into one
+	// i.e. foobar -o -v -> foobar -ov
+	UseShortOptionHandling bool
+	// Enable suggestions for commands and flags
+	Suggest bool
+	// Allows global flags set by libraries which use flag.XXXVar(...) directly
+	// to be parsed through this library
+	AllowExtFlags bool
+	// Treat all flags as normal arguments if true
+	SkipFlagParsing bool
+
+	didSetup  bool
+	separator separatorSpec
+
+	rootCommand *Command
+}
+
+type SuggestFlagFunc func(flags []Flag, provided string, hideHelp bool) string
+
+type SuggestCommandFunc func(commands []*Command, provided string) string
+
+// Tries to find out when this binary was compiled.
+// Returns the current time if it fails to find it.
+func compileTime() time.Time {
+	info, err := os.Stat(os.Args[0])
+	if err != nil {
+		return time.Now()
+	}
+	return info.ModTime()
+}
+
+// NewApp creates a new cli Application with some reasonable defaults for Name,
+// Usage, Version and Action.
+func NewApp() *App {
+	return &App{
+		Name:         filepath.Base(os.Args[0]),
+		Usage:        "A new cli application",
+		UsageText:    "",
+		BashComplete: DefaultAppComplete,
+		Action:       helpCommand.Action,
+		Compiled:     compileTime(),
+		Reader:       os.Stdin,
+		Writer:       os.Stdout,
+		ErrWriter:    os.Stderr,
+	}
+}
+
+// Setup runs initialization code to ensure all data structures are ready for
+// `Run` or inspection prior to `Run`.  It is internally called by `Run`, but
+// will return early if setup has already happened.
+func (a *App) Setup() {
+	if a.didSetup {
+		return
+	}
+
+	a.didSetup = true
+
+	if a.Name == "" {
+		a.Name = filepath.Base(os.Args[0])
+	}
+
+	if a.HelpName == "" {
+		a.HelpName = a.Name
+	}
+
+	if a.Usage == "" {
+		a.Usage = "A new cli application"
+	}
+
+	if a.Version == "" {
+		a.HideVersion = true
+	}
+
+	if a.BashComplete == nil {
+		a.BashComplete = DefaultAppComplete
+	}
+
+	if a.Action == nil {
+		a.Action = helpCommand.Action
+	}
+
+	if a.Compiled == (time.Time{}) {
+		a.Compiled = compileTime()
+	}
+
+	if a.Reader == nil {
+		a.Reader = os.Stdin
+	}
+
+	if a.Writer == nil {
+		a.Writer = os.Stdout
+	}
+
+	if a.ErrWriter == nil {
+		a.ErrWriter = os.Stderr
+	}
+
+	if a.AllowExtFlags {
+		// add global flags added by other packages
+		flag.VisitAll(func(f *flag.Flag) {
+			// skip test flags
+			if !strings.HasPrefix(f.Name, ignoreFlagPrefix) {
+				a.Flags = append(a.Flags, &extFlag{f})
+			}
+		})
+	}
+
+	if len(a.SliceFlagSeparator) != 0 {
+		a.separator.customized = true
+		a.separator.sep = a.SliceFlagSeparator
+	}
+
+	if a.DisableSliceFlagSeparator {
+		a.separator.customized = true
+		a.separator.disabled = true
+	}
+
+	for _, c := range a.Commands {
+		cname := c.Name
+		if c.HelpName != "" {
+			cname = c.HelpName
+		}
+		c.separator = a.separator
+		c.HelpName = fmt.Sprintf("%s %s", a.HelpName, cname)
+		c.flagCategories = newFlagCategoriesFromFlags(c.Flags)
+	}
+
+	if a.Command(helpCommand.Name) == nil && !a.HideHelp {
+		if !a.HideHelpCommand {
+			a.appendCommand(helpCommand)
+		}
+
+		if HelpFlag != nil {
+			a.appendFlag(HelpFlag)
+		}
+	}
+
+	if !a.HideVersion {
+		a.appendFlag(VersionFlag)
+	}
+
+	a.categories = newCommandCategories()
+	for _, command := range a.Commands {
+		a.categories.AddCommand(command.Category, command)
+	}
+	sort.Sort(a.categories.(*commandCategories))
+
+	a.flagCategories = newFlagCategoriesFromFlags(a.Flags)
+
+	if a.Metadata == nil {
+		a.Metadata = make(map[string]interface{})
+	}
+}
+
+func (a *App) newRootCommand() *Command {
+	return &Command{
+		Name:                   a.Name,
+		Usage:                  a.Usage,
+		UsageText:              a.UsageText,
+		Description:            a.Description,
+		ArgsUsage:              a.ArgsUsage,
+		BashComplete:           a.BashComplete,
+		Before:                 a.Before,
+		After:                  a.After,
+		Action:                 a.Action,
+		OnUsageError:           a.OnUsageError,
+		Subcommands:            a.Commands,
+		Flags:                  a.Flags,
+		flagCategories:         a.flagCategories,
+		HideHelp:               a.HideHelp,
+		HideHelpCommand:        a.HideHelpCommand,
+		UseShortOptionHandling: a.UseShortOptionHandling,
+		HelpName:               a.HelpName,
+		CustomHelpTemplate:     a.CustomAppHelpTemplate,
+		categories:             a.categories,
+		SkipFlagParsing:        a.SkipFlagParsing,
+		isRoot:                 true,
+		separator:              a.separator,
+	}
+}
+
+func (a *App) newFlagSet() (*flag.FlagSet, error) {
+	return flagSet(a.Name, a.Flags, a.separator)
+}
+
+func (a *App) useShortOptionHandling() bool {
+	return a.UseShortOptionHandling
+}
+
+// Run is the entry point to the cli app. Parses the arguments slice and routes
+// to the proper flag/args combination
+func (a *App) Run(arguments []string) (err error) {
+	return a.RunContext(context.Background(), arguments)
+}
+
+// RunContext is like Run except it takes a Context that will be
+// passed to its commands and sub-commands. Through this, you can
+// propagate timeouts and cancellation requests
+func (a *App) RunContext(ctx context.Context, arguments []string) (err error) {
+	a.Setup()
+
+	// handle the completion flag separately from the flagset since
+	// completion could be attempted after a flag, but before its value was put
+	// on the command line. this causes the flagset to interpret the completion
+	// flag name as the value of the flag before it which is undesirable
+	// note that we can only do this because the shell autocomplete function
+	// always appends the completion flag at the end of the command
+	shellComplete, arguments := checkShellCompleteFlag(a, arguments)
+
+	cCtx := NewContext(a, nil, &Context{Context: ctx})
+	cCtx.shellComplete = shellComplete
+
+	a.rootCommand = a.newRootCommand()
+	cCtx.Command = a.rootCommand
+
+	if err := checkDuplicatedCmds(a.rootCommand); err != nil {
+		return err
+	}
+	return a.rootCommand.Run(cCtx, arguments...)
+}
+
+// RunAsSubcommand is for legacy/compatibility purposes only. New code should only
+// use App.RunContext. This function is slated to be removed in v3.
+func (a *App) RunAsSubcommand(ctx *Context) (err error) {
+	a.Setup()
+
+	cCtx := NewContext(a, nil, ctx)
+	cCtx.shellComplete = ctx.shellComplete
+
+	a.rootCommand = a.newRootCommand()
+	cCtx.Command = a.rootCommand
+
+	return a.rootCommand.Run(cCtx, ctx.Args().Slice()...)
+}
+
+func (a *App) suggestFlagFromError(err error, command string) (string, error) {
+	flag, parseErr := flagFromError(err)
+	if parseErr != nil {
+		return "", err
+	}
+
+	flags := a.Flags
+	hideHelp := a.HideHelp
+	if command != "" {
+		cmd := a.Command(command)
+		if cmd == nil {
+			return "", err
+		}
+		flags = cmd.Flags
+		hideHelp = hideHelp || cmd.HideHelp
+	}
+
+	if SuggestFlag == nil {
+		return "", err
+	}
+	suggestion := SuggestFlag(flags, flag, hideHelp)
+	if len(suggestion) == 0 {
+		return "", err
+	}
+
+	return fmt.Sprintf(SuggestDidYouMeanTemplate+"\n\n", suggestion), nil
+}
+
+// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
+//
+// Deprecated: instead you should return an error that fulfills cli.ExitCoder
+// to cli.App.Run. This will cause the application to exit with the given error
+// code in the cli.ExitCoder
+func (a *App) RunAndExitOnError() {
+	if err := a.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(a.ErrWriter, err)
+		OsExiter(1)
+	}
+}
+
+// Command returns the named command on App. Returns nil if the command does not exist
+func (a *App) Command(name string) *Command {
+	for _, c := range a.Commands {
+		if c.HasName(name) {
+			return c
+		}
+	}
+
+	return nil
+}
+
+// VisibleCategories returns a slice of categories and commands that are
+// Hidden=false
+func (a *App) VisibleCategories() []CommandCategory {
+	ret := []CommandCategory{}
+	for _, category := range a.categories.Categories() {
+		if visible := func() CommandCategory {
+			if len(category.VisibleCommands()) > 0 {
+				return category
+			}
+			return nil
+		}(); visible != nil {
+			ret = append(ret, visible)
+		}
+	}
+	return ret
+}
+
+// VisibleCommands returns a slice of the Commands with Hidden=false
+func (a *App) VisibleCommands() []*Command {
+	var ret []*Command
+	for _, command := range a.Commands {
+		if !command.Hidden {
+			ret = append(ret, command)
+		}
+	}
+	return ret
+}
+
+// VisibleFlagCategories returns a slice containing all the categories with the flags they contain
+func (a *App) VisibleFlagCategories() []VisibleFlagCategory {
+	if a.flagCategories == nil {
+		return []VisibleFlagCategory{}
+	}
+	return a.flagCategories.VisibleCategories()
+}
+
+// VisibleFlags returns a slice of the Flags with Hidden=false
+func (a *App) VisibleFlags() []Flag {
+	return visibleFlags(a.Flags)
+}
+
+func (a *App) appendFlag(fl Flag) {
+	if !hasFlag(a.Flags, fl) {
+		a.Flags = append(a.Flags, fl)
+	}
+}
+
+func (a *App) appendCommand(c *Command) {
+	if !hasCommand(a.Commands, c) {
+		a.Commands = append(a.Commands, c)
+	}
+}
+
+func (a *App) handleExitCoder(cCtx *Context, err error) {
+	if a.ExitErrHandler != nil {
+		a.ExitErrHandler(cCtx, err)
+	} else {
+		HandleExitCoder(err)
+	}
+}
+
+func (a *App) argsWithDefaultCommand(oldArgs Args) Args {
+	if a.DefaultCommand != "" {
+		rawArgs := append([]string{a.DefaultCommand}, oldArgs.Slice()...)
+		newArgs := args(rawArgs)
+
+		return &newArgs
+	}
+
+	return oldArgs
+}
+
+func runFlagActions(c *Context, fs []Flag) error {
+	for _, f := range fs {
+		isSet := false
+		for _, name := range f.Names() {
+			if c.IsSet(name) {
+				isSet = true
+				break
+			}
+		}
+		if isSet {
+			if af, ok := f.(ActionableFlag); ok {
+				if err := af.RunAction(c); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// Author represents someone who has contributed to a cli project.
+type Author struct {
+	Name  string // The Authors name
+	Email string // The Authors email
+}
+
+// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
+func (a *Author) String() string {
+	e := ""
+	if a.Email != "" {
+		e = " <" + a.Email + ">"
+	}
+
+	return fmt.Sprintf("%v%v", a.Name, e)
+}
+
+// HandleAction attempts to figure out which Action signature was used.  If
+// it's an ActionFunc or a func with the legacy signature for Action, the func
+// is run!
+func HandleAction(action interface{}, cCtx *Context) (err error) {
+	switch a := action.(type) {
+	case ActionFunc:
+		return a(cCtx)
+	case func(*Context) error:
+		return a(cCtx)
+	case func(*Context): // deprecated function signature
+		a(cCtx)
+		return nil
+	}
+
+	return errInvalidActionType
+}
+
+func checkStringSliceIncludes(want string, sSlice []string) bool {
+	found := false
+	for _, s := range sSlice {
+		if want == s {
+			found = true
+			break
+		}
+	}
+
+	return found
+}

vendor/github.com/urfave/cli/v2/args.go

@@ -0,0 +1,54 @@
+package cli
+
+type Args interface {
+	// Get returns the nth argument, or else a blank string
+	Get(n int) string
+	// First returns the first argument, or else a blank string
+	First() string
+	// Tail returns the rest of the arguments (not the first one)
+	// or else an empty string slice
+	Tail() []string
+	// Len returns the length of the wrapped slice
+	Len() int
+	// Present checks if there are any arguments present
+	Present() bool
+	// Slice returns a copy of the internal slice
+	Slice() []string
+}
+
+type args []string
+
+func (a *args) Get(n int) string {
+	if len(*a) > n {
+		return (*a)[n]
+	}
+	return ""
+}
+
+func (a *args) First() string {
+	return a.Get(0)
+}
+
+func (a *args) Tail() []string {
+	if a.Len() >= 2 {
+		tail := []string((*a)[1:])
+		ret := make([]string, len(tail))
+		copy(ret, tail)
+		return ret
+	}
+	return []string{}
+}
+
+func (a *args) Len() int {
+	return len(*a)
+}
+
+func (a *args) Present() bool {
+	return a.Len() != 0
+}
+
+func (a *args) Slice() []string {
+	ret := make([]string, len(*a))
+	copy(ret, *a)
+	return ret
+}

vendor/github.com/urfave/cli/v2/category.go

@@ -0,0 +1,186 @@
+package cli
+
+import "sort"
+
+// CommandCategories interface allows for category manipulation
+type CommandCategories interface {
+	// AddCommand adds a command to a category, creating a new category if necessary.
+	AddCommand(category string, command *Command)
+	// Categories returns a slice of categories sorted by name
+	Categories() []CommandCategory
+}
+
+type commandCategories []*commandCategory
+
+func newCommandCategories() CommandCategories {
+	ret := commandCategories([]*commandCategory{})
+	return &ret
+}
+
+func (c *commandCategories) Less(i, j int) bool {
+	return lexicographicLess((*c)[i].Name(), (*c)[j].Name())
+}
+
+func (c *commandCategories) Len() int {
+	return len(*c)
+}
+
+func (c *commandCategories) Swap(i, j int) {
+	(*c)[i], (*c)[j] = (*c)[j], (*c)[i]
+}
+
+func (c *commandCategories) AddCommand(category string, command *Command) {
+	for _, commandCategory := range []*commandCategory(*c) {
+		if commandCategory.name == category {
+			commandCategory.commands = append(commandCategory.commands, command)
+			return
+		}
+	}
+	newVal := append(*c,
+		&commandCategory{name: category, commands: []*Command{command}})
+	*c = newVal
+}
+
+func (c *commandCategories) Categories() []CommandCategory {
+	ret := make([]CommandCategory, len(*c))
+	for i, cat := range *c {
+		ret[i] = cat
+	}
+	return ret
+}
+
+// CommandCategory is a category containing commands.
+type CommandCategory interface {
+	// Name returns the category name string
+	Name() string
+	// VisibleCommands returns a slice of the Commands with Hidden=false
+	VisibleCommands() []*Command
+}
+
+type commandCategory struct {
+	name     string
+	commands []*Command
+}
+
+func (c *commandCategory) Name() string {
+	return c.name
+}
+
+func (c *commandCategory) VisibleCommands() []*Command {
+	if c.commands == nil {
+		c.commands = []*Command{}
+	}
+
+	var ret []*Command
+	for _, command := range c.commands {
+		if !command.Hidden {
+			ret = append(ret, command)
+		}
+	}
+	return ret
+}
+
+// FlagCategories interface allows for category manipulation
+type FlagCategories interface {
+	// AddFlags adds a flag to a category, creating a new category if necessary.
+	AddFlag(category string, fl Flag)
+	// VisibleCategories returns a slice of visible flag categories sorted by name
+	VisibleCategories() []VisibleFlagCategory
+}
+
+type defaultFlagCategories struct {
+	m map[string]*defaultVisibleFlagCategory
+}
+
+func newFlagCategories() FlagCategories {
+	return &defaultFlagCategories{
+		m: map[string]*defaultVisibleFlagCategory{},
+	}
+}
+
+func newFlagCategoriesFromFlags(fs []Flag) FlagCategories {
+	fc := newFlagCategories()
+
+	var categorized bool
+	for _, fl := range fs {
+		if cf, ok := fl.(CategorizableFlag); ok {
+			if cat := cf.GetCategory(); cat != "" && cf.IsVisible() {
+				fc.AddFlag(cat, cf)
+				categorized = true
+			}
+		}
+	}
+
+	if categorized {
+		for _, fl := range fs {
+			if cf, ok := fl.(CategorizableFlag); ok {
+				if cf.GetCategory() == "" && cf.IsVisible() {
+					fc.AddFlag("", fl)
+				}
+			}
+		}
+	}
+
+	return fc
+}
+
+func (f *defaultFlagCategories) AddFlag(category string, fl Flag) {
+	if _, ok := f.m[category]; !ok {
+		f.m[category] = &defaultVisibleFlagCategory{name: category, m: map[string]Flag{}}
+	}
+
+	f.m[category].m[fl.String()] = fl
+}
+
+func (f *defaultFlagCategories) VisibleCategories() []VisibleFlagCategory {
+	catNames := []string{}
+	for name := range f.m {
+		catNames = append(catNames, name)
+	}
+
+	sort.Strings(catNames)
+
+	ret := make([]VisibleFlagCategory, len(catNames))
+	for i, name := range catNames {
+		ret[i] = f.m[name]
+	}
+
+	return ret
+}
+
+// VisibleFlagCategory is a category containing flags.
+type VisibleFlagCategory interface {
+	// Name returns the category name string
+	Name() string
+	// Flags returns a slice of VisibleFlag sorted by name
+	Flags() []VisibleFlag
+}
+
+type defaultVisibleFlagCategory struct {
+	name string
+	m    map[string]Flag
+}
+
+func (fc *defaultVisibleFlagCategory) Name() string {
+	return fc.name
+}
+
+func (fc *defaultVisibleFlagCategory) Flags() []VisibleFlag {
+	vfNames := []string{}
+	for flName, fl := range fc.m {
+		if vf, ok := fl.(VisibleFlag); ok {
+			if vf.IsVisible() {
+				vfNames = append(vfNames, flName)
+			}
+		}
+	}
+
+	sort.Strings(vfNames)
+
+	ret := make([]VisibleFlag, len(vfNames))
+	for i, flName := range vfNames {
+		ret[i] = fc.m[flName].(VisibleFlag)
+	}
+
+	return ret
+}

vendor/github.com/urfave/cli/v2/cli.go

@@ -0,0 +1,25 @@
+// Package cli provides a minimal framework for creating and organizing command line
+// Go applications. cli is designed to be easy to understand and write, the most simple
+// cli application can be written as follows:
+//
+//	func main() {
+//		(&cli.App{}).Run(os.Args)
+//	}
+//
+// Of course this application does not do much, so let's make this an actual application:
+//
+//	func main() {
+//		app := &cli.App{
+//	  		Name: "greet",
+//	  		Usage: "say a greeting",
+//	  		Action: func(c *cli.Context) error {
+//	  			fmt.Println("Greetings")
+//	  			return nil
+//	  		},
+//		}
+//
+//		app.Run(os.Args)
+//	}
+package cli
+
+//go:generate make -C cmd/urfave-cli-genflags run

vendor/github.com/urfave/cli/v2/command.go

@@ -0,0 +1,421 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"reflect"
+	"sort"
+	"strings"
+)
+
+// Command is a subcommand for a cli.App.
+type Command struct {
+	// The name of the command
+	Name string
+	// A list of aliases for the command
+	Aliases []string
+	// A short description of the usage of this command
+	Usage string
+	// Custom text to show on USAGE section of help
+	UsageText string
+	// A longer explanation of how the command works
+	Description string
+	// Whether this command supports arguments
+	Args bool
+	// A short description of the arguments of this command
+	ArgsUsage string
+	// The category the command is part of
+	Category string
+	// The function to call when checking for bash command completions
+	BashComplete BashCompleteFunc
+	// An action to execute before any sub-subcommands are run, but after the context is ready
+	// If a non-nil error is returned, no sub-subcommands are run
+	Before BeforeFunc
+	// An action to execute after any subcommands are run, but after the subcommand has finished
+	// It is run even if Action() panics
+	After AfterFunc
+	// The function to call when this command is invoked
+	Action ActionFunc
+	// Execute this function if a usage error occurs.
+	OnUsageError OnUsageErrorFunc
+	// List of child commands
+	Subcommands []*Command
+	// List of flags to parse
+	Flags          []Flag
+	flagCategories FlagCategories
+	// Treat all flags as normal arguments if true
+	SkipFlagParsing bool
+	// Boolean to hide built-in help command and help flag
+	HideHelp bool
+	// Boolean to hide built-in help command but keep help flag
+	// Ignored if HideHelp is true.
+	HideHelpCommand bool
+	// Boolean to hide this command from help or completion
+	Hidden bool
+	// Boolean to enable short-option handling so user can combine several
+	// single-character bool arguments into one
+	// i.e. foobar -o -v -> foobar -ov
+	UseShortOptionHandling bool
+
+	// Full name of command for help, defaults to full command name, including parent commands.
+	HelpName        string
+	commandNamePath []string
+
+	// CustomHelpTemplate the text template for the command help topic.
+	// cli.go uses text/template to render templates. You can
+	// render custom help text by setting this variable.
+	CustomHelpTemplate string
+
+	// categories contains the categorized commands and is populated on app startup
+	categories CommandCategories
+
+	// if this is a root "special" command
+	isRoot bool
+
+	separator separatorSpec
+}
+
+type Commands []*Command
+
+type CommandsByName []*Command
+
+func (c CommandsByName) Len() int {
+	return len(c)
+}
+
+func (c CommandsByName) Less(i, j int) bool {
+	return lexicographicLess(c[i].Name, c[j].Name)
+}
+
+func (c CommandsByName) Swap(i, j int) {
+	c[i], c[j] = c[j], c[i]
+}
+
+// FullName returns the full name of the command.
+// For subcommands this ensures that parent commands are part of the command path
+func (c *Command) FullName() string {
+	if c.commandNamePath == nil {
+		return c.Name
+	}
+	return strings.Join(c.commandNamePath, " ")
+}
+
+func (cmd *Command) Command(name string) *Command {
+	for _, c := range cmd.Subcommands {
+		if c.HasName(name) {
+			return c
+		}
+	}
+
+	return nil
+}
+
+func (c *Command) setup(ctx *Context) {
+	if c.Command(helpCommand.Name) == nil && !c.HideHelp {
+		if !c.HideHelpCommand {
+			c.Subcommands = append(c.Subcommands, helpCommand)
+		}
+	}
+
+	if !c.HideHelp && HelpFlag != nil {
+		// append help to flags
+		c.appendFlag(HelpFlag)
+	}
+
+	if ctx.App.UseShortOptionHandling {
+		c.UseShortOptionHandling = true
+	}
+
+	c.categories = newCommandCategories()
+	for _, command := range c.Subcommands {
+		c.categories.AddCommand(command.Category, command)
+	}
+	sort.Sort(c.categories.(*commandCategories))
+
+	for _, scmd := range c.Subcommands {
+		if scmd.HelpName == "" {
+			scmd.HelpName = fmt.Sprintf("%s %s", c.HelpName, scmd.Name)
+		}
+		scmd.separator = c.separator
+	}
+
+	if c.BashComplete == nil {
+		c.BashComplete = DefaultCompleteWithFlags(c)
+	}
+}
+
+func (c *Command) Run(cCtx *Context, arguments ...string) (err error) {
+
+	if !c.isRoot {
+		c.setup(cCtx)
+		if err := checkDuplicatedCmds(c); err != nil {
+			return err
+		}
+	}
+
+	a := args(arguments)
+	set, err := c.parseFlags(&a, cCtx.shellComplete)
+	cCtx.flagSet = set
+
+	if checkCompletions(cCtx) {
+		return nil
+	}
+
+	if err != nil {
+		if c.OnUsageError != nil {
+			err = c.OnUsageError(cCtx, err, !c.isRoot)
+			cCtx.App.handleExitCoder(cCtx, err)
+			return err
+		}
+		_, _ = fmt.Fprintf(cCtx.App.Writer, "%s %s\n\n", "Incorrect Usage:", err.Error())
+		if cCtx.App.Suggest {
+			if suggestion, err := c.suggestFlagFromError(err, ""); err == nil {
+				fmt.Fprintf(cCtx.App.Writer, "%s", suggestion)
+			}
+		}
+		if !c.HideHelp {
+			if c.isRoot {
+				_ = ShowAppHelp(cCtx)
+			} else {
+				_ = ShowCommandHelp(cCtx.parentContext, c.Name)
+			}
+		}
+		return err
+	}
+
+	if checkHelp(cCtx) {
+		return helpCommand.Action(cCtx)
+	}
+
+	if c.isRoot && !cCtx.App.HideVersion && checkVersion(cCtx) {
+		ShowVersion(cCtx)
+		return nil
+	}
+
+	if c.After != nil && !cCtx.shellComplete {
+		defer func() {
+			afterErr := c.After(cCtx)
+			if afterErr != nil {
+				cCtx.App.handleExitCoder(cCtx, err)
+				if err != nil {
+					err = newMultiError(err, afterErr)
+				} else {
+					err = afterErr
+				}
+			}
+		}()
+	}
+
+	cerr := cCtx.checkRequiredFlags(c.Flags)
+	if cerr != nil {
+		_ = helpCommand.Action(cCtx)
+		return cerr
+	}
+
+	if c.Before != nil && !cCtx.shellComplete {
+		beforeErr := c.Before(cCtx)
+		if beforeErr != nil {
+			cCtx.App.handleExitCoder(cCtx, beforeErr)
+			err = beforeErr
+			return err
+		}
+	}
+
+	if err = runFlagActions(cCtx, c.Flags); err != nil {
+		return err
+	}
+
+	var cmd *Command
+	args := cCtx.Args()
+	if args.Present() {
+		name := args.First()
+		cmd = c.Command(name)
+		if cmd == nil {
+			hasDefault := cCtx.App.DefaultCommand != ""
+			isFlagName := checkStringSliceIncludes(name, cCtx.FlagNames())
+
+			var (
+				isDefaultSubcommand   = false
+				defaultHasSubcommands = false
+			)
+
+			if hasDefault {
+				dc := cCtx.App.Command(cCtx.App.DefaultCommand)
+				defaultHasSubcommands = len(dc.Subcommands) > 0
+				for _, dcSub := range dc.Subcommands {
+					if checkStringSliceIncludes(name, dcSub.Names()) {
+						isDefaultSubcommand = true
+						break
+					}
+				}
+			}
+
+			if isFlagName || (hasDefault && (defaultHasSubcommands && isDefaultSubcommand)) {
+				argsWithDefault := cCtx.App.argsWithDefaultCommand(args)
+				if !reflect.DeepEqual(args, argsWithDefault) {
+					cmd = cCtx.App.rootCommand.Command(argsWithDefault.First())
+				}
+			}
+		}
+	} else if c.isRoot && cCtx.App.DefaultCommand != "" {
+		if dc := cCtx.App.Command(cCtx.App.DefaultCommand); dc != c {
+			cmd = dc
+		}
+	}
+
+	if cmd != nil {
+		newcCtx := NewContext(cCtx.App, nil, cCtx)
+		newcCtx.Command = cmd
+		return cmd.Run(newcCtx, cCtx.Args().Slice()...)
+	}
+
+	if c.Action == nil {
+		c.Action = helpCommand.Action
+	}
+
+	err = c.Action(cCtx)
+
+	cCtx.App.handleExitCoder(cCtx, err)
+	return err
+}
+
+func (c *Command) newFlagSet() (*flag.FlagSet, error) {
+	return flagSet(c.Name, c.Flags, c.separator)
+}
+
+func (c *Command) useShortOptionHandling() bool {
+	return c.UseShortOptionHandling
+}
+
+func (c *Command) suggestFlagFromError(err error, command string) (string, error) {
+	flag, parseErr := flagFromError(err)
+	if parseErr != nil {
+		return "", err
+	}
+
+	flags := c.Flags
+	hideHelp := c.HideHelp
+	if command != "" {
+		cmd := c.Command(command)
+		if cmd == nil {
+			return "", err
+		}
+		flags = cmd.Flags
+		hideHelp = hideHelp || cmd.HideHelp
+	}
+
+	suggestion := SuggestFlag(flags, flag, hideHelp)
+	if len(suggestion) == 0 {
+		return "", err
+	}
+
+	return fmt.Sprintf(SuggestDidYouMeanTemplate, suggestion) + "\n\n", nil
+}
+
+func (c *Command) parseFlags(args Args, shellComplete bool) (*flag.FlagSet, error) {
+	set, err := c.newFlagSet()
+	if err != nil {
+		return nil, err
+	}
+
+	if c.SkipFlagParsing {
+		return set, set.Parse(append([]string{"--"}, args.Tail()...))
+	}
+
+	err = parseIter(set, c, args.Tail(), shellComplete)
+	if err != nil {
+		return nil, err
+	}
+
+	err = normalizeFlags(c.Flags, set)
+	if err != nil {
+		return nil, err
+	}
+
+	return set, nil
+}
+
+// Names returns the names including short names and aliases.
+func (c *Command) Names() []string {
+	return append([]string{c.Name}, c.Aliases...)
+}
+
+// HasName returns true if Command.Name matches given name
+func (c *Command) HasName(name string) bool {
+	for _, n := range c.Names() {
+		if n == name {
+			return true
+		}
+	}
+	return false
+}
+
+// VisibleCategories returns a slice of categories and commands that are
+// Hidden=false
+func (c *Command) VisibleCategories() []CommandCategory {
+	ret := []CommandCategory{}
+	for _, category := range c.categories.Categories() {
+		if visible := func() CommandCategory {
+			if len(category.VisibleCommands()) > 0 {
+				return category
+			}
+			return nil
+		}(); visible != nil {
+			ret = append(ret, visible)
+		}
+	}
+	return ret
+}
+
+// VisibleCommands returns a slice of the Commands with Hidden=false
+func (c *Command) VisibleCommands() []*Command {
+	var ret []*Command
+	for _, command := range c.Subcommands {
+		if !command.Hidden {
+			ret = append(ret, command)
+		}
+	}
+	return ret
+}
+
+// VisibleFlagCategories returns a slice containing all the visible flag categories with the flags they contain
+func (c *Command) VisibleFlagCategories() []VisibleFlagCategory {
+	if c.flagCategories == nil {
+		c.flagCategories = newFlagCategoriesFromFlags(c.Flags)
+	}
+	return c.flagCategories.VisibleCategories()
+}
+
+// VisibleFlags returns a slice of the Flags with Hidden=false
+func (c *Command) VisibleFlags() []Flag {
+	return visibleFlags(c.Flags)
+}
+
+func (c *Command) appendFlag(fl Flag) {
+	if !hasFlag(c.Flags, fl) {
+		c.Flags = append(c.Flags, fl)
+	}
+}
+
+func hasCommand(commands []*Command, command *Command) bool {
+	for _, existing := range commands {
+		if command == existing {
+			return true
+		}
+	}
+
+	return false
+}
+
+func checkDuplicatedCmds(parent *Command) error {
+	seen := make(map[string]struct{})
+	for _, c := range parent.Subcommands {
+		for _, name := range c.Names() {
+			if _, exists := seen[name]; exists {
+				return fmt.Errorf("parent command [%s] has duplicated subcommand name or alias: %s", parent.Name, name)
+			}
+			seen[name] = struct{}{}
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/context.go

@@ -0,0 +1,272 @@
+package cli
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"strings"
+)
+
+// Context is a type that is passed through to
+// each Handler action in a cli application. Context
+// can be used to retrieve context-specific args and
+// parsed command-line options.
+type Context struct {
+	context.Context
+	App           *App
+	Command       *Command
+	shellComplete bool
+	flagSet       *flag.FlagSet
+	parentContext *Context
+}
+
+// NewContext creates a new context. For use in when invoking an App or Command action.
+func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
+	c := &Context{App: app, flagSet: set, parentContext: parentCtx}
+	if parentCtx != nil {
+		c.Context = parentCtx.Context
+		c.shellComplete = parentCtx.shellComplete
+		if parentCtx.flagSet == nil {
+			parentCtx.flagSet = &flag.FlagSet{}
+		}
+	}
+
+	c.Command = &Command{}
+
+	if c.Context == nil {
+		c.Context = context.Background()
+	}
+
+	return c
+}
+
+// NumFlags returns the number of flags set
+func (cCtx *Context) NumFlags() int {
+	return cCtx.flagSet.NFlag()
+}
+
+// Set sets a context flag to a value.
+func (cCtx *Context) Set(name, value string) error {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return fs.Set(name, value)
+	}
+
+	return fmt.Errorf("no such flag -%s", name)
+}
+
+// IsSet determines if the flag was actually set
+func (cCtx *Context) IsSet(name string) bool {
+
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		isSet := false
+		fs.Visit(func(f *flag.Flag) {
+			if f.Name == name {
+				isSet = true
+			}
+		})
+		if isSet {
+			return true
+		}
+
+		f := cCtx.lookupFlag(name)
+		if f == nil {
+			return false
+		}
+
+		if f.IsSet() {
+			return true
+		}
+
+		// now redo flagset search on aliases
+		aliases := f.Names()
+		fs.Visit(func(f *flag.Flag) {
+			for _, alias := range aliases {
+				if f.Name == alias {
+					isSet = true
+				}
+			}
+		})
+
+		if isSet {
+			return true
+		}
+	}
+
+	return false
+}
+
+// LocalFlagNames returns a slice of flag names used in this context.
+func (cCtx *Context) LocalFlagNames() []string {
+	var names []string
+	cCtx.flagSet.Visit(makeFlagNameVisitor(&names))
+	// Check the flags which have been set via env or file
+	if cCtx.Command != nil && cCtx.Command.Flags != nil {
+		for _, f := range cCtx.Command.Flags {
+			if f.IsSet() {
+				names = append(names, f.Names()...)
+			}
+		}
+	}
+
+	// Sort out the duplicates since flag could be set via multiple
+	// paths
+	m := map[string]struct{}{}
+	var unames []string
+	for _, name := range names {
+		if _, ok := m[name]; !ok {
+			m[name] = struct{}{}
+			unames = append(unames, name)
+		}
+	}
+
+	return unames
+}
+
+// FlagNames returns a slice of flag names used by the this context and all of
+// its parent contexts.
+func (cCtx *Context) FlagNames() []string {
+	var names []string
+	for _, pCtx := range cCtx.Lineage() {
+		names = append(names, pCtx.LocalFlagNames()...)
+	}
+	return names
+}
+
+// Lineage returns *this* context and all of its ancestor contexts in order from
+// child to parent
+func (cCtx *Context) Lineage() []*Context {
+	var lineage []*Context
+
+	for cur := cCtx; cur != nil; cur = cur.parentContext {
+		lineage = append(lineage, cur)
+	}
+
+	return lineage
+}
+
+// Count returns the num of occurrences of this flag
+func (cCtx *Context) Count(name string) int {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		if cf, ok := fs.Lookup(name).Value.(Countable); ok {
+			return cf.Count()
+		}
+	}
+	return 0
+}
+
+// Value returns the value of the flag corresponding to `name`
+func (cCtx *Context) Value(name string) interface{} {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return fs.Lookup(name).Value.(flag.Getter).Get()
+	}
+	return nil
+}
+
+// Args returns the command line arguments associated with the context.
+func (cCtx *Context) Args() Args {
+	ret := args(cCtx.flagSet.Args())
+	return &ret
+}
+
+// NArg returns the number of the command line arguments.
+func (cCtx *Context) NArg() int {
+	return cCtx.Args().Len()
+}
+
+func (cCtx *Context) lookupFlag(name string) Flag {
+	for _, c := range cCtx.Lineage() {
+		if c.Command == nil {
+			continue
+		}
+
+		for _, f := range c.Command.Flags {
+			for _, n := range f.Names() {
+				if n == name {
+					return f
+				}
+			}
+		}
+	}
+
+	if cCtx.App != nil {
+		for _, f := range cCtx.App.Flags {
+			for _, n := range f.Names() {
+				if n == name {
+					return f
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func (cCtx *Context) lookupFlagSet(name string) *flag.FlagSet {
+	for _, c := range cCtx.Lineage() {
+		if c.flagSet == nil {
+			continue
+		}
+		if f := c.flagSet.Lookup(name); f != nil {
+			return c.flagSet
+		}
+	}
+	cCtx.onInvalidFlag(name)
+	return nil
+}
+
+func (cCtx *Context) checkRequiredFlags(flags []Flag) requiredFlagsErr {
+	var missingFlags []string
+	for _, f := range flags {
+		if rf, ok := f.(RequiredFlag); ok && rf.IsRequired() {
+			var flagPresent bool
+			var flagName string
+
+			flagNames := f.Names()
+			flagName = flagNames[0]
+
+			for _, key := range flagNames {
+				if cCtx.IsSet(strings.TrimSpace(key)) {
+					flagPresent = true
+				}
+			}
+
+			if !flagPresent && flagName != "" {
+				missingFlags = append(missingFlags, flagName)
+			}
+		}
+	}
+
+	if len(missingFlags) != 0 {
+		return &errRequiredFlags{missingFlags: missingFlags}
+	}
+
+	return nil
+}
+
+func (cCtx *Context) onInvalidFlag(name string) {
+	for cCtx != nil {
+		if cCtx.App != nil && cCtx.App.InvalidFlagAccessHandler != nil {
+			cCtx.App.InvalidFlagAccessHandler(cCtx, name)
+			break
+		}
+		cCtx = cCtx.parentContext
+	}
+}
+
+func makeFlagNameVisitor(names *[]string) func(*flag.Flag) {
+	return func(f *flag.Flag) {
+		nameParts := strings.Split(f.Name, ",")
+		name := strings.TrimSpace(nameParts[0])
+
+		for _, part := range nameParts {
+			part = strings.TrimSpace(part)
+			if len(part) > len(name) {
+				name = part
+			}
+		}
+
+		if name != "" {
+			*names = append(*names, name)
+		}
+	}
+}

vendor/github.com/urfave/cli/v2/docs.go

@@ -0,0 +1,203 @@
+//go:build !urfave_cli_no_docs
+// +build !urfave_cli_no_docs
+
+package cli
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"sort"
+	"strings"
+	"text/template"
+
+	"github.com/cpuguy83/go-md2man/v2/md2man"
+)
+
+// ToMarkdown creates a markdown string for the `*App`
+// The function errors if either parsing or writing of the string fails.
+func (a *App) ToMarkdown() (string, error) {
+	var w bytes.Buffer
+	if err := a.writeDocTemplate(&w, 0); err != nil {
+		return "", err
+	}
+	return w.String(), nil
+}
+
+// ToMan creates a man page string with section number for the `*App`
+// The function errors if either parsing or writing of the string fails.
+func (a *App) ToManWithSection(sectionNumber int) (string, error) {
+	var w bytes.Buffer
+	if err := a.writeDocTemplate(&w, sectionNumber); err != nil {
+		return "", err
+	}
+	man := md2man.Render(w.Bytes())
+	return string(man), nil
+}
+
+// ToMan creates a man page string for the `*App`
+// The function errors if either parsing or writing of the string fails.
+func (a *App) ToMan() (string, error) {
+	man, err := a.ToManWithSection(8)
+	return man, err
+}
+
+type cliTemplate struct {
+	App          *App
+	SectionNum   int
+	Commands     []string
+	GlobalArgs   []string
+	SynopsisArgs []string
+}
+
+func (a *App) writeDocTemplate(w io.Writer, sectionNum int) error {
+	const name = "cli"
+	t, err := template.New(name).Parse(MarkdownDocTemplate)
+	if err != nil {
+		return err
+	}
+	return t.ExecuteTemplate(w, name, &cliTemplate{
+		App:          a,
+		SectionNum:   sectionNum,
+		Commands:     prepareCommands(a.Commands, 0),
+		GlobalArgs:   prepareArgsWithValues(a.VisibleFlags()),
+		SynopsisArgs: prepareArgsSynopsis(a.VisibleFlags()),
+	})
+}
+
+func prepareCommands(commands []*Command, level int) []string {
+	var coms []string
+	for _, command := range commands {
+		if command.Hidden {
+			continue
+		}
+
+		usageText := prepareUsageText(command)
+
+		usage := prepareUsage(command, usageText)
+
+		prepared := fmt.Sprintf("%s %s\n\n%s%s",
+			strings.Repeat("#", level+2),
+			strings.Join(command.Names(), ", "),
+			usage,
+			usageText,
+		)
+
+		flags := prepareArgsWithValues(command.VisibleFlags())
+		if len(flags) > 0 {
+			prepared += fmt.Sprintf("\n%s", strings.Join(flags, "\n"))
+		}
+
+		coms = append(coms, prepared)
+
+		// recursively iterate subcommands
+		if len(command.Subcommands) > 0 {
+			coms = append(
+				coms,
+				prepareCommands(command.Subcommands, level+1)...,
+			)
+		}
+	}
+
+	return coms
+}
+
+func prepareArgsWithValues(flags []Flag) []string {
+	return prepareFlags(flags, ", ", "**", "**", `""`, true)
+}
+
+func prepareArgsSynopsis(flags []Flag) []string {
+	return prepareFlags(flags, "|", "[", "]", "[value]", false)
+}
+
+func prepareFlags(
+	flags []Flag,
+	sep, opener, closer, value string,
+	addDetails bool,
+) []string {
+	args := []string{}
+	for _, f := range flags {
+		flag, ok := f.(DocGenerationFlag)
+		if !ok {
+			continue
+		}
+		modifiedArg := opener
+
+		for _, s := range flag.Names() {
+			trimmed := strings.TrimSpace(s)
+			if len(modifiedArg) > len(opener) {
+				modifiedArg += sep
+			}
+			if len(trimmed) > 1 {
+				modifiedArg += fmt.Sprintf("--%s", trimmed)
+			} else {
+				modifiedArg += fmt.Sprintf("-%s", trimmed)
+			}
+		}
+		modifiedArg += closer
+		if flag.TakesValue() {
+			modifiedArg += fmt.Sprintf("=%s", value)
+		}
+
+		if addDetails {
+			modifiedArg += flagDetails(flag)
+		}
+
+		args = append(args, modifiedArg+"\n")
+
+	}
+	sort.Strings(args)
+	return args
+}
+
+// flagDetails returns a string containing the flags metadata
+func flagDetails(flag DocGenerationFlag) string {
+	description := flag.GetUsage()
+	if flag.TakesValue() {
+		defaultText := flag.GetDefaultText()
+		if defaultText == "" {
+			defaultText = flag.GetValue()
+		}
+		if defaultText != "" {
+			description += " (default: " + defaultText + ")"
+		}
+	}
+	return ": " + description
+}
+
+func prepareUsageText(command *Command) string {
+	if command.UsageText == "" {
+		return ""
+	}
+
+	// Remove leading and trailing newlines
+	preparedUsageText := strings.Trim(command.UsageText, "\n")
+
+	var usageText string
+	if strings.Contains(preparedUsageText, "\n") {
+		// Format multi-line string as a code block using the 4 space schema to allow for embedded markdown such
+		// that it will not break the continuous code block.
+		for _, ln := range strings.Split(preparedUsageText, "\n") {
+			usageText += fmt.Sprintf("    %s\n", ln)
+		}
+	} else {
+		// Style a single line as a note
+		usageText = fmt.Sprintf(">%s\n", preparedUsageText)
+	}
+
+	return usageText
+}
+
+func prepareUsage(command *Command, usageText string) string {
+	if command.Usage == "" {
+		return ""
+	}
+
+	usage := command.Usage + "\n"
+	// Add a newline to the Usage IFF there is a UsageText
+	if usageText != "" {
+		usage += "\n"
+	}
+
+	return usage
+}

vendor/github.com/urfave/cli/v2/errors.go

@@ -0,0 +1,178 @@
+package cli
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
+var OsExiter = os.Exit
+
+// ErrWriter is used to write errors to the user. This can be anything
+// implementing the io.Writer interface and defaults to os.Stderr.
+var ErrWriter io.Writer = os.Stderr
+
+// MultiError is an error that wraps multiple errors.
+type MultiError interface {
+	error
+	Errors() []error
+}
+
+// newMultiError creates a new MultiError. Pass in one or more errors.
+func newMultiError(err ...error) MultiError {
+	ret := multiError(err)
+	return &ret
+}
+
+type multiError []error
+
+// Error implements the error interface.
+func (m *multiError) Error() string {
+	errs := make([]string, len(*m))
+	for i, err := range *m {
+		errs[i] = err.Error()
+	}
+
+	return strings.Join(errs, "\n")
+}
+
+// Errors returns a copy of the errors slice
+func (m *multiError) Errors() []error {
+	errs := make([]error, len(*m))
+	for _, err := range *m {
+		errs = append(errs, err)
+	}
+	return errs
+}
+
+type requiredFlagsErr interface {
+	error
+	getMissingFlags() []string
+}
+
+type errRequiredFlags struct {
+	missingFlags []string
+}
+
+func (e *errRequiredFlags) Error() string {
+	numberOfMissingFlags := len(e.missingFlags)
+	if numberOfMissingFlags == 1 {
+		return fmt.Sprintf("Required flag %q not set", e.missingFlags[0])
+	}
+	joinedMissingFlags := strings.Join(e.missingFlags, ", ")
+	return fmt.Sprintf("Required flags %q not set", joinedMissingFlags)
+}
+
+func (e *errRequiredFlags) getMissingFlags() []string {
+	return e.missingFlags
+}
+
+// ErrorFormatter is the interface that will suitably format the error output
+type ErrorFormatter interface {
+	Format(s fmt.State, verb rune)
+}
+
+// ExitCoder is the interface checked by `App` and `Command` for a custom exit
+// code
+type ExitCoder interface {
+	error
+	ExitCode() int
+}
+
+type exitError struct {
+	exitCode int
+	err      error
+}
+
+// NewExitError calls Exit to create a new ExitCoder.
+//
+// Deprecated: This function is a duplicate of Exit and will eventually be removed.
+func NewExitError(message interface{}, exitCode int) ExitCoder {
+	return Exit(message, exitCode)
+}
+
+// Exit wraps a message and exit code into an error, which by default is
+// handled with a call to os.Exit during default error handling.
+//
+// This is the simplest way to trigger a non-zero exit code for an App without
+// having to call os.Exit manually. During testing, this behavior can be avoided
+// by overriding the ExitErrHandler function on an App or the package-global
+// OsExiter function.
+func Exit(message interface{}, exitCode int) ExitCoder {
+	var err error
+
+	switch e := message.(type) {
+	case ErrorFormatter:
+		err = fmt.Errorf("%+v", message)
+	case error:
+		err = e
+	default:
+		err = fmt.Errorf("%+v", message)
+	}
+
+	return &exitError{
+		err:      err,
+		exitCode: exitCode,
+	}
+}
+
+func (ee *exitError) Error() string {
+	return ee.err.Error()
+}
+
+func (ee *exitError) ExitCode() int {
+	return ee.exitCode
+}
+
+func (ee *exitError) Unwrap() error {
+	return ee.err
+}
+
+// HandleExitCoder handles errors implementing ExitCoder by printing their
+// message and calling OsExiter with the given exit code.
+//
+// If the given error instead implements MultiError, each error will be checked
+// for the ExitCoder interface, and OsExiter will be called with the last exit
+// code found, or exit code 1 if no ExitCoder is found.
+//
+// This function is the default error-handling behavior for an App.
+func HandleExitCoder(err error) {
+	if err == nil {
+		return
+	}
+
+	if exitErr, ok := err.(ExitCoder); ok {
+		if err.Error() != "" {
+			if _, ok := exitErr.(ErrorFormatter); ok {
+				_, _ = fmt.Fprintf(ErrWriter, "%+v\n", err)
+			} else {
+				_, _ = fmt.Fprintln(ErrWriter, err)
+			}
+		}
+		OsExiter(exitErr.ExitCode())
+		return
+	}
+
+	if multiErr, ok := err.(MultiError); ok {
+		code := handleMultiError(multiErr)
+		OsExiter(code)
+		return
+	}
+}
+
+func handleMultiError(multiErr MultiError) int {
+	code := 1
+	for _, merr := range multiErr.Errors() {
+		if multiErr2, ok := merr.(MultiError); ok {
+			code = handleMultiError(multiErr2)
+		} else if merr != nil {
+			fmt.Fprintln(ErrWriter, merr)
+			if exitErr, ok := merr.(ExitCoder); ok {
+				code = exitErr.ExitCode()
+			}
+		}
+	}
+	return code
+}

vendor/github.com/urfave/cli/v2/fish.go

@@ -0,0 +1,196 @@
+package cli
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"strings"
+	"text/template"
+)
+
+// ToFishCompletion creates a fish completion string for the `*App`
+// The function errors if either parsing or writing of the string fails.
+func (a *App) ToFishCompletion() (string, error) {
+	var w bytes.Buffer
+	if err := a.writeFishCompletionTemplate(&w); err != nil {
+		return "", err
+	}
+	return w.String(), nil
+}
+
+type fishCompletionTemplate struct {
+	App         *App
+	Completions []string
+	AllCommands []string
+}
+
+func (a *App) writeFishCompletionTemplate(w io.Writer) error {
+	const name = "cli"
+	t, err := template.New(name).Parse(FishCompletionTemplate)
+	if err != nil {
+		return err
+	}
+	allCommands := []string{}
+
+	// Add global flags
+	completions := a.prepareFishFlags(a.VisibleFlags(), allCommands)
+
+	// Add help flag
+	if !a.HideHelp {
+		completions = append(
+			completions,
+			a.prepareFishFlags([]Flag{HelpFlag}, allCommands)...,
+		)
+	}
+
+	// Add version flag
+	if !a.HideVersion {
+		completions = append(
+			completions,
+			a.prepareFishFlags([]Flag{VersionFlag}, allCommands)...,
+		)
+	}
+
+	// Add commands and their flags
+	completions = append(
+		completions,
+		a.prepareFishCommands(a.VisibleCommands(), &allCommands, []string{})...,
+	)
+
+	return t.ExecuteTemplate(w, name, &fishCompletionTemplate{
+		App:         a,
+		Completions: completions,
+		AllCommands: allCommands,
+	})
+}
+
+func (a *App) prepareFishCommands(commands []*Command, allCommands *[]string, previousCommands []string) []string {
+	completions := []string{}
+	for _, command := range commands {
+		if command.Hidden {
+			continue
+		}
+
+		var completion strings.Builder
+		completion.WriteString(fmt.Sprintf(
+			"complete -r -c %s -n '%s' -a '%s'",
+			a.Name,
+			a.fishSubcommandHelper(previousCommands),
+			strings.Join(command.Names(), " "),
+		))
+
+		if command.Usage != "" {
+			completion.WriteString(fmt.Sprintf(" -d '%s'",
+				escapeSingleQuotes(command.Usage)))
+		}
+
+		if !command.HideHelp {
+			completions = append(
+				completions,
+				a.prepareFishFlags([]Flag{HelpFlag}, command.Names())...,
+			)
+		}
+
+		*allCommands = append(*allCommands, command.Names()...)
+		completions = append(completions, completion.String())
+		completions = append(
+			completions,
+			a.prepareFishFlags(command.VisibleFlags(), command.Names())...,
+		)
+
+		// recursively iterate subcommands
+		if len(command.Subcommands) > 0 {
+			completions = append(
+				completions,
+				a.prepareFishCommands(
+					command.Subcommands, allCommands, command.Names(),
+				)...,
+			)
+		}
+	}
+
+	return completions
+}
+
+func (a *App) prepareFishFlags(flags []Flag, previousCommands []string) []string {
+	completions := []string{}
+	for _, f := range flags {
+		flag, ok := f.(DocGenerationFlag)
+		if !ok {
+			continue
+		}
+
+		completion := &strings.Builder{}
+		completion.WriteString(fmt.Sprintf(
+			"complete -c %s -n '%s'",
+			a.Name,
+			a.fishSubcommandHelper(previousCommands),
+		))
+
+		fishAddFileFlag(f, completion)
+
+		for idx, opt := range flag.Names() {
+			if idx == 0 {
+				completion.WriteString(fmt.Sprintf(
+					" -l %s", strings.TrimSpace(opt),
+				))
+			} else {
+				completion.WriteString(fmt.Sprintf(
+					" -s %s", strings.TrimSpace(opt),
+				))
+
+			}
+		}
+
+		if flag.TakesValue() {
+			completion.WriteString(" -r")
+		}
+
+		if flag.GetUsage() != "" {
+			completion.WriteString(fmt.Sprintf(" -d '%s'",
+				escapeSingleQuotes(flag.GetUsage())))
+		}
+
+		completions = append(completions, completion.String())
+	}
+
+	return completions
+}
+
+func fishAddFileFlag(flag Flag, completion *strings.Builder) {
+	switch f := flag.(type) {
+	case *GenericFlag:
+		if f.TakesFile {
+			return
+		}
+	case *StringFlag:
+		if f.TakesFile {
+			return
+		}
+	case *StringSliceFlag:
+		if f.TakesFile {
+			return
+		}
+	case *PathFlag:
+		if f.TakesFile {
+			return
+		}
+	}
+	completion.WriteString(" -f")
+}
+
+func (a *App) fishSubcommandHelper(allCommands []string) string {
+	fishHelper := fmt.Sprintf("__fish_%s_no_subcommand", a.Name)
+	if len(allCommands) > 0 {
+		fishHelper = fmt.Sprintf(
+			"__fish_seen_subcommand_from %s",
+			strings.Join(allCommands, " "),
+		)
+	}
+	return fishHelper
+
+}
+
+func escapeSingleQuotes(input string) string {
+	return strings.Replace(input, `'`, `\'`, -1)
+}

vendor/github.com/urfave/cli/v2/flag-spec.yaml

@@ -0,0 +1,131 @@
+# NOTE: this file is used by the tool defined in
+# ./cmd/urfave-cli-genflags/main.go which uses the
+# `Spec` type that maps to this file structure.
+flag_types:
+  bool:
+    struct_fields:
+      - name: Count
+        type: int
+        pointer: true
+      - name: DisableDefaultText
+        type: bool
+      - name: Action
+        type: "func(*Context, bool) error"
+  float64:
+    struct_fields:
+      - name: Action
+        type: "func(*Context, float64) error"
+  Float64Slice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: Action
+        type: "func(*Context, []float64) error"
+  int:
+    struct_fields:
+      - name: Base
+        type: int
+      - name: Action
+        type: "func(*Context, int) error"
+  IntSlice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: Action
+        type: "func(*Context, []int) error"
+  int64:
+    struct_fields:
+      - name: Base
+        type: int
+      - name: Action
+        type: "func(*Context, int64) error"
+  Int64Slice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: Action
+        type: "func(*Context, []int64) error"
+  uint:
+    struct_fields:
+      - name: Base
+        type: int
+      - name: Action
+        type: "func(*Context, uint) error"
+  UintSlice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: Action
+        type: "func(*Context, []uint) error"
+  uint64:
+    struct_fields:
+      - name: Base
+        type: int
+      - name: Action
+        type: "func(*Context, uint64) error"
+  Uint64Slice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: Action
+        type: "func(*Context, []uint64) error"
+  string:
+    struct_fields:
+      - name: TakesFile
+        type: bool
+      - name: Action
+        type: "func(*Context, string) error"
+  StringSlice:
+    value_pointer: true
+    skip_interfaces:
+      - fmt.Stringer
+    struct_fields:
+      - name: separator
+        type: separatorSpec
+      - name: TakesFile
+        type: bool
+      - name: Action
+        type: "func(*Context, []string) error"
+      - name: KeepSpace
+        type: bool
+  time.Duration:
+    struct_fields:
+      - name: Action
+        type: "func(*Context, time.Duration) error"
+  Timestamp:
+    value_pointer: true
+    struct_fields:
+      - name: Layout
+        type: string
+      - name: Timezone
+        type: "*time.Location"
+      - name: Action
+        type: "func(*Context, *time.Time) error"
+  Generic:
+    no_destination_pointer: true
+    struct_fields:
+      - name: TakesFile
+        type: bool
+      - name: Action
+        type: "func(*Context, interface{}) error"
+  Path:
+    struct_fields:
+      - name: TakesFile
+        type: bool
+      - name: Action
+        type: "func(*Context, Path) error"

vendor/github.com/urfave/cli/v2/flag.go

@@ -0,0 +1,419 @@
+package cli
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"runtime"
+	"strings"
+	"syscall"
+	"time"
+)
+
+const defaultPlaceholder = "value"
+
+const (
+	defaultSliceFlagSeparator = ","
+	disableSliceFlagSeparator = false
+)
+
+var (
+	slPfx = fmt.Sprintf("sl:::%d:::", time.Now().UTC().UnixNano())
+
+	commaWhitespace = regexp.MustCompile("[, ]+.*")
+)
+
+// BashCompletionFlag enables bash-completion for all commands and subcommands
+var BashCompletionFlag Flag = &BoolFlag{
+	Name:   "generate-bash-completion",
+	Hidden: true,
+}
+
+// VersionFlag prints the version for the application
+var VersionFlag Flag = &BoolFlag{
+	Name:               "version",
+	Aliases:            []string{"v"},
+	Usage:              "print the version",
+	DisableDefaultText: true,
+}
+
+// HelpFlag prints the help for all commands and subcommands.
+// Set to nil to disable the flag.  The subcommand
+// will still be added unless HideHelp or HideHelpCommand is set to true.
+var HelpFlag Flag = &BoolFlag{
+	Name:               "help",
+	Aliases:            []string{"h"},
+	Usage:              "show help",
+	DisableDefaultText: true,
+}
+
+// FlagStringer converts a flag definition to a string. This is used by help
+// to display a flag.
+var FlagStringer FlagStringFunc = stringifyFlag
+
+// Serializer is used to circumvent the limitations of flag.FlagSet.Set
+type Serializer interface {
+	Serialize() string
+}
+
+// FlagNamePrefixer converts a full flag name and its placeholder into the help
+// message flag prefix. This is used by the default FlagStringer.
+var FlagNamePrefixer FlagNamePrefixFunc = prefixedNames
+
+// FlagEnvHinter annotates flag help message with the environment variable
+// details. This is used by the default FlagStringer.
+var FlagEnvHinter FlagEnvHintFunc = withEnvHint
+
+// FlagFileHinter annotates flag help message with the environment variable
+// details. This is used by the default FlagStringer.
+var FlagFileHinter FlagFileHintFunc = withFileHint
+
+// FlagsByName is a slice of Flag.
+type FlagsByName []Flag
+
+func (f FlagsByName) Len() int {
+	return len(f)
+}
+
+func (f FlagsByName) Less(i, j int) bool {
+	if len(f[j].Names()) == 0 {
+		return false
+	} else if len(f[i].Names()) == 0 {
+		return true
+	}
+	return lexicographicLess(f[i].Names()[0], f[j].Names()[0])
+}
+
+func (f FlagsByName) Swap(i, j int) {
+	f[i], f[j] = f[j], f[i]
+}
+
+// ActionableFlag is an interface that wraps Flag interface and RunAction operation.
+type ActionableFlag interface {
+	Flag
+	RunAction(*Context) error
+}
+
+// Flag is a common interface related to parsing flags in cli.
+// For more advanced flag parsing techniques, it is recommended that
+// this interface be implemented.
+type Flag interface {
+	fmt.Stringer
+	// Apply Flag settings to the given flag set
+	Apply(*flag.FlagSet) error
+	Names() []string
+	IsSet() bool
+}
+
+// RequiredFlag is an interface that allows us to mark flags as required
+// it allows flags required flags to be backwards compatible with the Flag interface
+type RequiredFlag interface {
+	Flag
+
+	IsRequired() bool
+}
+
+// DocGenerationFlag is an interface that allows documentation generation for the flag
+type DocGenerationFlag interface {
+	Flag
+
+	// TakesValue returns true if the flag takes a value, otherwise false
+	TakesValue() bool
+
+	// GetUsage returns the usage string for the flag
+	GetUsage() string
+
+	// GetValue returns the flags value as string representation and an empty
+	// string if the flag takes no value at all.
+	GetValue() string
+
+	// GetDefaultText returns the default text for this flag
+	GetDefaultText() string
+
+	// GetEnvVars returns the env vars for this flag
+	GetEnvVars() []string
+}
+
+// DocGenerationSliceFlag extends DocGenerationFlag for slice-based flags.
+type DocGenerationSliceFlag interface {
+	DocGenerationFlag
+
+	// IsSliceFlag returns true for flags that can be given multiple times.
+	IsSliceFlag() bool
+}
+
+// VisibleFlag is an interface that allows to check if a flag is visible
+type VisibleFlag interface {
+	Flag
+
+	// IsVisible returns true if the flag is not hidden, otherwise false
+	IsVisible() bool
+}
+
+// CategorizableFlag is an interface that allows us to potentially
+// use a flag in a categorized representation.
+type CategorizableFlag interface {
+	VisibleFlag
+
+	GetCategory() string
+}
+
+// Countable is an interface to enable detection of flag values which support
+// repetitive flags
+type Countable interface {
+	Count() int
+}
+
+func flagSet(name string, flags []Flag, spec separatorSpec) (*flag.FlagSet, error) {
+	set := flag.NewFlagSet(name, flag.ContinueOnError)
+
+	for _, f := range flags {
+		if c, ok := f.(customizedSeparator); ok {
+			c.WithSeparatorSpec(spec)
+		}
+		if err := f.Apply(set); err != nil {
+			return nil, err
+		}
+	}
+	set.SetOutput(io.Discard)
+	return set, nil
+}
+
+func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
+	switch ff.Value.(type) {
+	case Serializer:
+		_ = set.Set(name, ff.Value.(Serializer).Serialize())
+	default:
+		_ = set.Set(name, ff.Value.String())
+	}
+}
+
+func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
+	visited := make(map[string]bool)
+	set.Visit(func(f *flag.Flag) {
+		visited[f.Name] = true
+	})
+	for _, f := range flags {
+		parts := f.Names()
+		if len(parts) == 1 {
+			continue
+		}
+		var ff *flag.Flag
+		for _, name := range parts {
+			name = strings.Trim(name, " ")
+			if visited[name] {
+				if ff != nil {
+					return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
+				}
+				ff = set.Lookup(name)
+			}
+		}
+		if ff == nil {
+			continue
+		}
+		for _, name := range parts {
+			name = strings.Trim(name, " ")
+			if !visited[name] {
+				copyFlag(name, ff, set)
+			}
+		}
+	}
+	return nil
+}
+
+func visibleFlags(fl []Flag) []Flag {
+	var visible []Flag
+	for _, f := range fl {
+		if vf, ok := f.(VisibleFlag); ok && vf.IsVisible() {
+			visible = append(visible, f)
+		}
+	}
+	return visible
+}
+
+func prefixFor(name string) (prefix string) {
+	if len(name) == 1 {
+		prefix = "-"
+	} else {
+		prefix = "--"
+	}
+
+	return
+}
+
+// Returns the placeholder, if any, and the unquoted usage string.
+func unquoteUsage(usage string) (string, string) {
+	for i := 0; i < len(usage); i++ {
+		if usage[i] == '`' {
+			for j := i + 1; j < len(usage); j++ {
+				if usage[j] == '`' {
+					name := usage[i+1 : j]
+					usage = usage[:i] + name + usage[j+1:]
+					return name, usage
+				}
+			}
+			break
+		}
+	}
+	return "", usage
+}
+
+func prefixedNames(names []string, placeholder string) string {
+	var prefixed string
+	for i, name := range names {
+		if name == "" {
+			continue
+		}
+
+		prefixed += prefixFor(name) + name
+		if placeholder != "" {
+			prefixed += " " + placeholder
+		}
+		if i < len(names)-1 {
+			prefixed += ", "
+		}
+	}
+	return prefixed
+}
+
+func envFormat(envVars []string, prefix, sep, suffix string) string {
+	if len(envVars) > 0 {
+		return fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(envVars, sep), suffix)
+	}
+	return ""
+}
+
+func defaultEnvFormat(envVars []string) string {
+	return envFormat(envVars, "$", ", $", "")
+}
+
+func withEnvHint(envVars []string, str string) string {
+	envText := ""
+	if runtime.GOOS != "windows" || os.Getenv("PSHOME") != "" {
+		envText = defaultEnvFormat(envVars)
+	} else {
+		envText = envFormat(envVars, "%", "%, %", "%")
+	}
+	return str + envText
+}
+
+func FlagNames(name string, aliases []string) []string {
+	var ret []string
+
+	for _, part := range append([]string{name}, aliases...) {
+		// v1 -> v2 migration warning zone:
+		// Strip off anything after the first found comma or space, which
+		// *hopefully* makes it a tiny bit more obvious that unexpected behavior is
+		// caused by using the v1 form of stringly typed "Name".
+		ret = append(ret, commaWhitespace.ReplaceAllString(part, ""))
+	}
+
+	return ret
+}
+
+func withFileHint(filePath, str string) string {
+	fileText := ""
+	if filePath != "" {
+		fileText = fmt.Sprintf(" [%s]", filePath)
+	}
+	return str + fileText
+}
+
+func formatDefault(format string) string {
+	return " (default: " + format + ")"
+}
+
+func stringifyFlag(f Flag) string {
+	// enforce DocGeneration interface on flags to avoid reflection
+	df, ok := f.(DocGenerationFlag)
+	if !ok {
+		return ""
+	}
+
+	placeholder, usage := unquoteUsage(df.GetUsage())
+	needsPlaceholder := df.TakesValue()
+
+	if needsPlaceholder && placeholder == "" {
+		placeholder = defaultPlaceholder
+	}
+
+	defaultValueString := ""
+
+	// set default text for all flags except bool flags
+	// for bool flags display default text if DisableDefaultText is not
+	// set
+	if bf, ok := f.(*BoolFlag); !ok || !bf.DisableDefaultText {
+		if s := df.GetDefaultText(); s != "" {
+			defaultValueString = fmt.Sprintf(formatDefault("%s"), s)
+		}
+	}
+
+	usageWithDefault := strings.TrimSpace(usage + defaultValueString)
+
+	pn := prefixedNames(df.Names(), placeholder)
+	sliceFlag, ok := f.(DocGenerationSliceFlag)
+	if ok && sliceFlag.IsSliceFlag() {
+		pn = pn + " [ " + pn + " ]"
+	}
+
+	return withEnvHint(df.GetEnvVars(), fmt.Sprintf("%s\t%s", pn, usageWithDefault))
+}
+
+func hasFlag(flags []Flag, fl Flag) bool {
+	for _, existing := range flags {
+		if fl == existing {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Return the first value from a list of environment variables and files
+// (which may or may not exist), a description of where the value was found,
+// and a boolean which is true if a value was found.
+func flagFromEnvOrFile(envVars []string, filePath string) (value string, fromWhere string, found bool) {
+	for _, envVar := range envVars {
+		envVar = strings.TrimSpace(envVar)
+		if value, found := syscall.Getenv(envVar); found {
+			return value, fmt.Sprintf("environment variable %q", envVar), true
+		}
+	}
+	for _, fileVar := range strings.Split(filePath, ",") {
+		if fileVar != "" {
+			if data, err := os.ReadFile(fileVar); err == nil {
+				return string(data), fmt.Sprintf("file %q", filePath), true
+			}
+		}
+	}
+	return "", "", false
+}
+
+type customizedSeparator interface {
+	WithSeparatorSpec(separatorSpec)
+}
+
+type separatorSpec struct {
+	sep        string
+	disabled   bool
+	customized bool
+}
+
+func (s separatorSpec) flagSplitMultiValues(val string) []string {
+	var (
+		disabled bool   = s.disabled
+		sep      string = s.sep
+	)
+	if !s.customized {
+		disabled = disableSliceFlagSeparator
+		sep = defaultSliceFlagSeparator
+	}
+	if disabled {
+		return []string{val}
+	}
+
+	return strings.Split(val, sep)
+}

vendor/github.com/urfave/cli/v2/flag_bool.go

@@ -0,0 +1,178 @@
+package cli
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// boolValue needs to implement the boolFlag internal interface in flag
+// to be able to capture bool fields and values
+//
+//	type boolFlag interface {
+//		  Value
+//		  IsBoolFlag() bool
+//	}
+type boolValue struct {
+	destination *bool
+	count       *int
+}
+
+func newBoolValue(val bool, p *bool, count *int) *boolValue {
+	*p = val
+	return &boolValue{
+		destination: p,
+		count:       count,
+	}
+}
+
+func (b *boolValue) Set(s string) error {
+	v, err := strconv.ParseBool(s)
+	if err != nil {
+		err = errors.New("parse error")
+		return err
+	}
+	*b.destination = v
+	if b.count != nil {
+		*b.count = *b.count + 1
+	}
+	return err
+}
+
+func (b *boolValue) Get() interface{} { return *b.destination }
+
+func (b *boolValue) String() string {
+	if b.destination != nil {
+		return strconv.FormatBool(*b.destination)
+	}
+	return strconv.FormatBool(false)
+}
+
+func (b *boolValue) IsBoolFlag() bool { return true }
+
+func (b *boolValue) Count() int {
+	if b.count != nil && *b.count > 0 {
+		return *b.count
+	}
+	return 0
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *BoolFlag) TakesValue() bool {
+	return false
+}
+
+// GetUsage returns the usage string for the flag
+func (f *BoolFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *BoolFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *BoolFlag) GetValue() string {
+	return ""
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *BoolFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%v", f.defaultValue)
+	}
+	return fmt.Sprintf("%v", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *BoolFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// RunAction executes flag action if set
+func (f *BoolFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Bool(f.Name))
+	}
+
+	return nil
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *BoolFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valBool, err := strconv.ParseBool(val)
+
+			if err != nil {
+				return fmt.Errorf("could not parse %q as bool value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valBool
+		} else {
+			// empty value implies that the env is defined but set to empty string, we have to assume that this is
+			// what the user wants. If user doesnt want this then the env needs to be deleted or the flag removed from
+			// file
+			f.Value = false
+		}
+		f.HasBeenSet = true
+	}
+
+	count := f.Count
+	dest := f.Destination
+
+	if count == nil {
+		count = new(int)
+	}
+
+	// since count will be incremented for each alias as well
+	// subtract number of aliases from overall count
+	*count -= len(f.Aliases)
+
+	if dest == nil {
+		dest = new(bool)
+	}
+
+	for _, name := range f.Names() {
+		value := newBoolValue(f.Value, dest, count)
+		set.Var(value, name, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *BoolFlag) Get(ctx *Context) bool {
+	return ctx.Bool(f.Name)
+}
+
+// Bool looks up the value of a local BoolFlag, returns
+// false if not found
+func (cCtx *Context) Bool(name string) bool {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupBool(name, fs)
+	}
+	return false
+}
+
+func lookupBool(name string, set *flag.FlagSet) bool {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseBool(f.Value.String())
+		if err != nil {
+			return false
+		}
+		return parsed
+	}
+	return false
+}

vendor/github.com/urfave/cli/v2/flag_duration.go

@@ -0,0 +1,108 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"time"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *DurationFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *DurationFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *DurationFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *DurationFlag) GetValue() string {
+	return f.Value.String()
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *DurationFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return f.defaultValue.String()
+	}
+	return f.Value.String()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *DurationFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *DurationFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valDuration, err := time.ParseDuration(val)
+
+			if err != nil {
+				return fmt.Errorf("could not parse %q as duration value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valDuration
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.DurationVar(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Duration(name, f.Value, f.Usage)
+	}
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *DurationFlag) Get(ctx *Context) time.Duration {
+	return ctx.Duration(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *DurationFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Duration(f.Name))
+	}
+
+	return nil
+}
+
+// Duration looks up the value of a local DurationFlag, returns
+// 0 if not found
+func (cCtx *Context) Duration(name string) time.Duration {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupDuration(name, fs)
+	}
+	return 0
+}
+
+func lookupDuration(name string, set *flag.FlagSet) time.Duration {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := time.ParseDuration(f.Value.String())
+		if err != nil {
+			return 0
+		}
+		return parsed
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_ext.go

@@ -0,0 +1,48 @@
+package cli
+
+import "flag"
+
+type extFlag struct {
+	f *flag.Flag
+}
+
+func (e *extFlag) Apply(fs *flag.FlagSet) error {
+	fs.Var(e.f.Value, e.f.Name, e.f.Usage)
+	return nil
+}
+
+func (e *extFlag) Names() []string {
+	return []string{e.f.Name}
+}
+
+func (e *extFlag) IsSet() bool {
+	return false
+}
+
+func (e *extFlag) String() string {
+	return FlagStringer(e)
+}
+
+func (e *extFlag) IsVisible() bool {
+	return true
+}
+
+func (e *extFlag) TakesValue() bool {
+	return false
+}
+
+func (e *extFlag) GetUsage() string {
+	return e.f.Usage
+}
+
+func (e *extFlag) GetValue() string {
+	return e.f.Value.String()
+}
+
+func (e *extFlag) GetDefaultText() string {
+	return e.f.DefValue
+}
+
+func (e *extFlag) GetEnvVars() []string {
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_float64.go

@@ -0,0 +1,107 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Float64Flag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Float64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Float64Flag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Float64Flag) GetValue() string {
+	return fmt.Sprintf("%v", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Float64Flag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%v", f.defaultValue)
+	}
+	return fmt.Sprintf("%v", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Float64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Float64Flag) Apply(set *flag.FlagSet) error {
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valFloat, err := strconv.ParseFloat(val, 64)
+			if err != nil {
+				return fmt.Errorf("could not parse %q as float64 value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valFloat
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Float64Var(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Float64(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Float64Flag) Get(ctx *Context) float64 {
+	return ctx.Float64(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Float64Flag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Float64(f.Name))
+	}
+
+	return nil
+}
+
+// Float64 looks up the value of a local Float64Flag, returns
+// 0 if not found
+func (cCtx *Context) Float64(name string) float64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupFloat64(name, fs)
+	}
+	return 0
+}
+
+func lookupFloat64(name string, set *flag.FlagSet) float64 {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseFloat(f.Value.String(), 64)
+		if err != nil {
+			return 0
+		}
+		return parsed
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_float64_slice.go

@@ -0,0 +1,216 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Float64Slice wraps []float64 to satisfy flag.Value
+type Float64Slice struct {
+	slice      []float64
+	separator  separatorSpec
+	hasBeenSet bool
+}
+
+// NewFloat64Slice makes a *Float64Slice with default values
+func NewFloat64Slice(defaults ...float64) *Float64Slice {
+	return &Float64Slice{slice: append([]float64{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (f *Float64Slice) clone() *Float64Slice {
+	n := &Float64Slice{
+		slice:      make([]float64, len(f.slice)),
+		hasBeenSet: f.hasBeenSet,
+	}
+	copy(n.slice, f.slice)
+	return n
+}
+
+func (f *Float64Slice) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Set parses the value into a float64 and appends it to the list of values
+func (f *Float64Slice) Set(value string) error {
+	if !f.hasBeenSet {
+		f.slice = []float64{}
+		f.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &f.slice)
+		f.hasBeenSet = true
+		return nil
+	}
+
+	for _, s := range f.separator.flagSplitMultiValues(value) {
+		tmp, err := strconv.ParseFloat(strings.TrimSpace(s), 64)
+		if err != nil {
+			return err
+		}
+
+		f.slice = append(f.slice, tmp)
+	}
+	return nil
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *Float64Slice) String() string {
+	v := f.slice
+	if v == nil {
+		// treat nil the same as zero length non-nil
+		v = make([]float64, 0)
+	}
+	return fmt.Sprintf("%#v", v)
+}
+
+// Serialize allows Float64Slice to fulfill Serializer
+func (f *Float64Slice) Serialize() string {
+	jsonBytes, _ := json.Marshal(f.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of float64s set by this flag
+func (f *Float64Slice) Value() []float64 {
+	return f.slice
+}
+
+// Get returns the slice of float64s set by this flag
+func (f *Float64Slice) Get() interface{} {
+	return *f
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *Float64SliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true if the flag takes a value, otherwise false
+func (f *Float64SliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Float64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Float64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Float64SliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, i := range f.Value.Value() {
+			defaultVals = append(defaultVals, strings.TrimRight(strings.TrimRight(fmt.Sprintf("%f", i), "0"), "."))
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Float64SliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Float64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *Float64SliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Float64SliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]float64, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *Float64Slice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(Float64Slice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			for _, s := range f.separator.flagSplitMultiValues(val) {
+				if err := setValue.Set(strings.TrimSpace(s)); err != nil {
+					return fmt.Errorf("could not parse %q as float64 slice value from %s for flag %s: %s", val, source, f.Name, err)
+				}
+			}
+
+			// Set this to false so that we reset the slice if we then set values from
+			// flags that have already been set by the environment.
+			setValue.hasBeenSet = false
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *Float64SliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Float64SliceFlag) Get(ctx *Context) []float64 {
+	return ctx.Float64Slice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Float64SliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Float64Slice(f.Name))
+	}
+
+	return nil
+}
+
+// Float64Slice looks up the value of a local Float64SliceFlag, returns
+// nil if not found
+func (cCtx *Context) Float64Slice(name string) []float64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupFloat64Slice(name, fs)
+	}
+	return nil
+}
+
+func lookupFloat64Slice(name string, set *flag.FlagSet) []float64 {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*Float64Slice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_generic.go

@@ -0,0 +1,131 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+)
+
+// Generic is a generic parseable type identified by a specific flag
+type Generic interface {
+	Set(value string) error
+	String() string
+}
+
+type stringGeneric struct {
+	value string
+}
+
+func (s *stringGeneric) Set(value string) error {
+	s.value = value
+	return nil
+}
+
+func (s *stringGeneric) String() string {
+	return s.value
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *GenericFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *GenericFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *GenericFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *GenericFlag) GetValue() string {
+	if f.Value != nil {
+		return f.Value.String()
+	}
+	return ""
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *GenericFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	val := f.Value
+	if f.defaultValueSet {
+		val = f.defaultValue
+	}
+
+	if val != nil {
+		return val.String()
+	}
+
+	return ""
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *GenericFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply takes the flagset and calls Set on the generic flag with the value
+// provided by the user for parsing by the flag
+func (f *GenericFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	if f.Value != nil {
+		f.defaultValue = &stringGeneric{value: f.Value.String()}
+		f.defaultValueSet = true
+	}
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			if err := f.Value.Set(val); err != nil {
+				return fmt.Errorf("could not parse %q from %s as value for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Var(f.Destination, name, f.Usage)
+			continue
+		}
+		set.Var(f.Value, name, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *GenericFlag) Get(ctx *Context) interface{} {
+	return ctx.Generic(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *GenericFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Generic(f.Name))
+	}
+
+	return nil
+}
+
+// Generic looks up the value of a local GenericFlag, returns
+// nil if not found
+func (cCtx *Context) Generic(name string) interface{} {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupGeneric(name, fs)
+	}
+	return nil
+}
+
+func lookupGeneric(name string, set *flag.FlagSet) interface{} {
+	if f := set.Lookup(name); f != nil {
+		return f.Value
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_int.go

@@ -0,0 +1,109 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *IntFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *IntFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *IntFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *IntFlag) GetValue() string {
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *IntFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%d", f.defaultValue)
+	}
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *IntFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *IntFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valInt, err := strconv.ParseInt(val, f.Base, 64)
+
+			if err != nil {
+				return fmt.Errorf("could not parse %q as int value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = int(valInt)
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.IntVar(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Int(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *IntFlag) Get(ctx *Context) int {
+	return ctx.Int(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *IntFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Int(f.Name))
+	}
+
+	return nil
+}
+
+// Int looks up the value of a local IntFlag, returns
+// 0 if not found
+func (cCtx *Context) Int(name string) int {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupInt(name, fs)
+	}
+	return 0
+}
+
+func lookupInt(name string, set *flag.FlagSet) int {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
+		if err != nil {
+			return 0
+		}
+		return int(parsed)
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_int64.go

@@ -0,0 +1,108 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Int64Flag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Int64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Int64Flag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Int64Flag) GetValue() string {
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Int64Flag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%d", f.defaultValue)
+	}
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Int64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Int64Flag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valInt, err := strconv.ParseInt(val, f.Base, 64)
+
+			if err != nil {
+				return fmt.Errorf("could not parse %q as int value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valInt
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Int64Var(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Int64(name, f.Value, f.Usage)
+	}
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Int64Flag) Get(ctx *Context) int64 {
+	return ctx.Int64(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Int64Flag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Int64(f.Name))
+	}
+
+	return nil
+}
+
+// Int64 looks up the value of a local Int64Flag, returns
+// 0 if not found
+func (cCtx *Context) Int64(name string) int64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupInt64(name, fs)
+	}
+	return 0
+}
+
+func lookupInt64(name string, set *flag.FlagSet) int64 {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
+		if err != nil {
+			return 0
+		}
+		return parsed
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_int64_slice.go

@@ -0,0 +1,215 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Int64Slice wraps []int64 to satisfy flag.Value
+type Int64Slice struct {
+	slice      []int64
+	separator  separatorSpec
+	hasBeenSet bool
+}
+
+// NewInt64Slice makes an *Int64Slice with default values
+func NewInt64Slice(defaults ...int64) *Int64Slice {
+	return &Int64Slice{slice: append([]int64{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (i *Int64Slice) clone() *Int64Slice {
+	n := &Int64Slice{
+		slice:      make([]int64, len(i.slice)),
+		hasBeenSet: i.hasBeenSet,
+	}
+	copy(n.slice, i.slice)
+	return n
+}
+
+func (i *Int64Slice) WithSeparatorSpec(spec separatorSpec) {
+	i.separator = spec
+}
+
+// Set parses the value into an integer and appends it to the list of values
+func (i *Int64Slice) Set(value string) error {
+	if !i.hasBeenSet {
+		i.slice = []int64{}
+		i.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
+		i.hasBeenSet = true
+		return nil
+	}
+
+	for _, s := range i.separator.flagSplitMultiValues(value) {
+		tmp, err := strconv.ParseInt(strings.TrimSpace(s), 0, 64)
+		if err != nil {
+			return err
+		}
+
+		i.slice = append(i.slice, tmp)
+	}
+
+	return nil
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (i *Int64Slice) String() string {
+	v := i.slice
+	if v == nil {
+		// treat nil the same as zero length non-nil
+		v = make([]int64, 0)
+	}
+	return fmt.Sprintf("%#v", v)
+}
+
+// Serialize allows Int64Slice to fulfill Serializer
+func (i *Int64Slice) Serialize() string {
+	jsonBytes, _ := json.Marshal(i.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of ints set by this flag
+func (i *Int64Slice) Value() []int64 {
+	return i.slice
+}
+
+// Get returns the slice of ints set by this flag
+func (i *Int64Slice) Get() interface{} {
+	return *i
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *Int64SliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Int64SliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Int64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Int64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Int64SliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, i := range f.Value.Value() {
+			defaultVals = append(defaultVals, strconv.FormatInt(i, 10))
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Int64SliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Int64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *Int64SliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Int64SliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]int64, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *Int64Slice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(Int64Slice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	if val, source, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok && val != "" {
+		for _, s := range f.separator.flagSplitMultiValues(val) {
+			if err := setValue.Set(strings.TrimSpace(s)); err != nil {
+				return fmt.Errorf("could not parse %q as int64 slice value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+		}
+
+		// Set this to false so that we reset the slice if we then set values from
+		// flags that have already been set by the environment.
+		setValue.hasBeenSet = false
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *Int64SliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Int64SliceFlag) Get(ctx *Context) []int64 {
+	return ctx.Int64Slice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Int64SliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Int64Slice(f.Name))
+	}
+
+	return nil
+}
+
+// Int64Slice looks up the value of a local Int64SliceFlag, returns
+// nil if not found
+func (cCtx *Context) Int64Slice(name string) []int64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupInt64Slice(name, fs)
+	}
+	return nil
+}
+
+func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*Int64Slice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_int_slice.go

@@ -0,0 +1,226 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// IntSlice wraps []int to satisfy flag.Value
+type IntSlice struct {
+	slice      []int
+	separator  separatorSpec
+	hasBeenSet bool
+}
+
+// NewIntSlice makes an *IntSlice with default values
+func NewIntSlice(defaults ...int) *IntSlice {
+	return &IntSlice{slice: append([]int{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (i *IntSlice) clone() *IntSlice {
+	n := &IntSlice{
+		slice:      make([]int, len(i.slice)),
+		hasBeenSet: i.hasBeenSet,
+	}
+	copy(n.slice, i.slice)
+	return n
+}
+
+// TODO: Consistently have specific Set function for Int64 and Float64 ?
+// SetInt directly adds an integer to the list of values
+func (i *IntSlice) SetInt(value int) {
+	if !i.hasBeenSet {
+		i.slice = []int{}
+		i.hasBeenSet = true
+	}
+
+	i.slice = append(i.slice, value)
+}
+
+func (i *IntSlice) WithSeparatorSpec(spec separatorSpec) {
+	i.separator = spec
+}
+
+// Set parses the value into an integer and appends it to the list of values
+func (i *IntSlice) Set(value string) error {
+	if !i.hasBeenSet {
+		i.slice = []int{}
+		i.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
+		i.hasBeenSet = true
+		return nil
+	}
+
+	for _, s := range i.separator.flagSplitMultiValues(value) {
+		tmp, err := strconv.ParseInt(strings.TrimSpace(s), 0, 64)
+		if err != nil {
+			return err
+		}
+
+		i.slice = append(i.slice, int(tmp))
+	}
+
+	return nil
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (i *IntSlice) String() string {
+	v := i.slice
+	if v == nil {
+		// treat nil the same as zero length non-nil
+		v = make([]int, 0)
+	}
+	return fmt.Sprintf("%#v", v)
+}
+
+// Serialize allows IntSlice to fulfill Serializer
+func (i *IntSlice) Serialize() string {
+	jsonBytes, _ := json.Marshal(i.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of ints set by this flag
+func (i *IntSlice) Value() []int {
+	return i.slice
+}
+
+// Get returns the slice of ints set by this flag
+func (i *IntSlice) Get() interface{} {
+	return *i
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *IntSliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *IntSliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *IntSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *IntSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *IntSliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, i := range f.Value.Value() {
+			defaultVals = append(defaultVals, strconv.Itoa(i))
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *IntSliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *IntSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *IntSliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *IntSliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]int, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *IntSlice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(IntSlice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	if val, source, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok && val != "" {
+		for _, s := range f.separator.flagSplitMultiValues(val) {
+			if err := setValue.Set(strings.TrimSpace(s)); err != nil {
+				return fmt.Errorf("could not parse %q as int slice value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+		}
+
+		// Set this to false so that we reset the slice if we then set values from
+		// flags that have already been set by the environment.
+		setValue.hasBeenSet = false
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *IntSliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *IntSliceFlag) Get(ctx *Context) []int {
+	return ctx.IntSlice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *IntSliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.IntSlice(f.Name))
+	}
+
+	return nil
+}
+
+// IntSlice looks up the value of a local IntSliceFlag, returns
+// nil if not found
+func (cCtx *Context) IntSlice(name string) []int {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupIntSlice(name, fs)
+	}
+	return nil
+}
+
+func lookupIntSlice(name string, set *flag.FlagSet) []int {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*IntSlice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_path.go

@@ -0,0 +1,102 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+)
+
+type Path = string
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *PathFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *PathFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *PathFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *PathFlag) GetValue() string {
+	return f.Value
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *PathFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	val := f.Value
+	if f.defaultValueSet {
+		val = f.defaultValue
+	}
+	if val == "" {
+		return val
+	}
+	return fmt.Sprintf("%q", val)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *PathFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *PathFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, _, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		f.Value = val
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.StringVar(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.String(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *PathFlag) Get(ctx *Context) string {
+	return ctx.Path(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *PathFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Path(f.Name))
+	}
+
+	return nil
+}
+
+// Path looks up the value of a local PathFlag, returns
+// "" if not found
+func (cCtx *Context) Path(name string) string {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupPath(name, fs)
+	}
+
+	return ""
+}
+
+func lookupPath(name string, set *flag.FlagSet) string {
+	if f := set.Lookup(name); f != nil {
+		return f.Value.String()
+	}
+	return ""
+}

vendor/github.com/urfave/cli/v2/flag_string.go

@@ -0,0 +1,100 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *StringFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *StringFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *StringFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *StringFlag) GetValue() string {
+	return f.Value
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *StringFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	val := f.Value
+	if f.defaultValueSet {
+		val = f.defaultValue
+	}
+
+	if val == "" {
+		return val
+	}
+	return fmt.Sprintf("%q", val)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *StringFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *StringFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, _, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		f.Value = val
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.StringVar(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.String(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *StringFlag) Get(ctx *Context) string {
+	return ctx.String(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *StringFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.String(f.Name))
+	}
+
+	return nil
+}
+
+// String looks up the value of a local StringFlag, returns
+// "" if not found
+func (cCtx *Context) String(name string) string {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupString(name, fs)
+	}
+	return ""
+}
+
+func lookupString(name string, set *flag.FlagSet) string {
+	if f := set.Lookup(name); f != nil {
+		return f.Value.String()
+	}
+	return ""
+}

vendor/github.com/urfave/cli/v2/flag_string_slice.go

@@ -0,0 +1,216 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// StringSlice wraps a []string to satisfy flag.Value
+type StringSlice struct {
+	slice      []string
+	separator  separatorSpec
+	hasBeenSet bool
+	keepSpace  bool
+}
+
+// NewStringSlice creates a *StringSlice with default values
+func NewStringSlice(defaults ...string) *StringSlice {
+	return &StringSlice{slice: append([]string{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (s *StringSlice) clone() *StringSlice {
+	n := &StringSlice{
+		slice:      make([]string, len(s.slice)),
+		hasBeenSet: s.hasBeenSet,
+	}
+	copy(n.slice, s.slice)
+	return n
+}
+
+// Set appends the string value to the list of values
+func (s *StringSlice) Set(value string) error {
+	if !s.hasBeenSet {
+		s.slice = []string{}
+		s.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &s.slice)
+		s.hasBeenSet = true
+		return nil
+	}
+
+	for _, t := range s.separator.flagSplitMultiValues(value) {
+		if !s.keepSpace {
+			t = strings.TrimSpace(t)
+		}
+		s.slice = append(s.slice, t)
+	}
+
+	return nil
+}
+
+func (s *StringSlice) WithSeparatorSpec(spec separatorSpec) {
+	s.separator = spec
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (s *StringSlice) String() string {
+	return fmt.Sprintf("%s", s.slice)
+}
+
+// Serialize allows StringSlice to fulfill Serializer
+func (s *StringSlice) Serialize() string {
+	jsonBytes, _ := json.Marshal(s.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of strings set by this flag
+func (s *StringSlice) Value() []string {
+	return s.slice
+}
+
+// Get returns the slice of strings set by this flag
+func (s *StringSlice) Get() interface{} {
+	return *s
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *StringSliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *StringSliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *StringSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *StringSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *StringSliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, s := range f.Value.Value() {
+			if len(s) > 0 {
+				defaultVals = append(defaultVals, strconv.Quote(s))
+			}
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *StringSliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *StringSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *StringSliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *StringSliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]string, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *StringSlice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(StringSlice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	setValue.keepSpace = f.KeepSpace
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		for _, s := range f.separator.flagSplitMultiValues(val) {
+			if !f.KeepSpace {
+				s = strings.TrimSpace(s)
+			}
+			if err := setValue.Set(s); err != nil {
+				return fmt.Errorf("could not parse %q as string value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+		}
+
+		// Set this to false so that we reset the slice if we then set values from
+		// flags that have already been set by the environment.
+		setValue.hasBeenSet = false
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *StringSliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *StringSliceFlag) Get(ctx *Context) []string {
+	return ctx.StringSlice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *StringSliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.StringSlice(f.Name))
+	}
+
+	return nil
+}
+
+// StringSlice looks up the value of a local StringSliceFlag, returns
+// nil if not found
+func (cCtx *Context) StringSlice(name string) []string {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupStringSlice(name, fs)
+	}
+	return nil
+}
+
+func lookupStringSlice(name string, set *flag.FlagSet) []string {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*StringSlice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_timestamp.go

@@ -0,0 +1,205 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"time"
+)
+
+// Timestamp wrap to satisfy golang's flag interface.
+type Timestamp struct {
+	timestamp  *time.Time
+	hasBeenSet bool
+	layout     string
+	location   *time.Location
+}
+
+// Timestamp constructor
+func NewTimestamp(timestamp time.Time) *Timestamp {
+	return &Timestamp{timestamp: &timestamp}
+}
+
+// Set the timestamp value directly
+func (t *Timestamp) SetTimestamp(value time.Time) {
+	if !t.hasBeenSet {
+		t.timestamp = &value
+		t.hasBeenSet = true
+	}
+}
+
+// Set the timestamp string layout for future parsing
+func (t *Timestamp) SetLayout(layout string) {
+	t.layout = layout
+}
+
+// Set perceived timezone of the to-be parsed time string
+func (t *Timestamp) SetLocation(loc *time.Location) {
+	t.location = loc
+}
+
+// Parses the string value to timestamp
+func (t *Timestamp) Set(value string) error {
+	var timestamp time.Time
+	var err error
+
+	if t.location != nil {
+		timestamp, err = time.ParseInLocation(t.layout, value, t.location)
+	} else {
+		timestamp, err = time.Parse(t.layout, value)
+	}
+
+	if err != nil {
+		return err
+	}
+
+	t.timestamp = &timestamp
+	t.hasBeenSet = true
+	return nil
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (t *Timestamp) String() string {
+	return fmt.Sprintf("%#v", t.timestamp)
+}
+
+// Value returns the timestamp value stored in the flag
+func (t *Timestamp) Value() *time.Time {
+	return t.timestamp
+}
+
+// Get returns the flag structure
+func (t *Timestamp) Get() interface{} {
+	return *t
+}
+
+// clone timestamp
+func (t *Timestamp) clone() *Timestamp {
+	tc := &Timestamp{
+		timestamp:  nil,
+		hasBeenSet: t.hasBeenSet,
+		layout:     t.layout,
+		location:   nil,
+	}
+	if t.timestamp != nil {
+		tts := *t.timestamp
+		tc.timestamp = &tts
+	}
+	if t.location != nil {
+		loc := *t.location
+		tc.location = &loc
+	}
+	return tc
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *TimestampFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *TimestampFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *TimestampFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *TimestampFlag) GetValue() string {
+	if f.Value != nil && f.Value.timestamp != nil {
+		return f.Value.timestamp.String()
+	}
+	return ""
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *TimestampFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	val := f.Value
+	if f.defaultValueSet {
+		val = f.defaultValue
+	}
+
+	if val != nil && val.timestamp != nil {
+		return val.timestamp.String()
+	}
+
+	return ""
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *TimestampFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *TimestampFlag) Apply(set *flag.FlagSet) error {
+	if f.Layout == "" {
+		return fmt.Errorf("timestamp Layout is required")
+	}
+	if f.Value == nil {
+		f.Value = &Timestamp{}
+	}
+	f.Value.SetLayout(f.Layout)
+	f.Value.SetLocation(f.Timezone)
+
+	f.defaultValue = f.Value.clone()
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if err := f.Value.Set(val); err != nil {
+			return fmt.Errorf("could not parse %q as timestamp value from %s for flag %s: %s", val, source, f.Name, err)
+		}
+		f.HasBeenSet = true
+	}
+
+	if f.Destination != nil {
+		*f.Destination = *f.Value
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Var(f.Destination, name, f.Usage)
+			continue
+		}
+
+		set.Var(f.Value, name, f.Usage)
+	}
+	return nil
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *TimestampFlag) Get(ctx *Context) *time.Time {
+	return ctx.Timestamp(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *TimestampFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Timestamp(f.Name))
+	}
+
+	return nil
+}
+
+// Timestamp gets the timestamp from a flag name
+func (cCtx *Context) Timestamp(name string) *time.Time {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupTimestamp(name, fs)
+	}
+	return nil
+}
+
+// Fetches the timestamp value from the local timestampWrap
+func lookupTimestamp(name string, set *flag.FlagSet) *time.Time {
+	f := set.Lookup(name)
+	if f != nil {
+		return (f.Value.(*Timestamp)).Value()
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_uint.go

@@ -0,0 +1,108 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *UintFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *UintFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *UintFlag) GetCategory() string {
+	return f.Category
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *UintFlag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valInt, err := strconv.ParseUint(val, f.Base, 64)
+			if err != nil {
+				return fmt.Errorf("could not parse %q as uint value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = uint(valInt)
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.UintVar(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Uint(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// RunAction executes flag action if set
+func (f *UintFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint(f.Name))
+	}
+
+	return nil
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *UintFlag) GetValue() string {
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *UintFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%d", f.defaultValue)
+	}
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *UintFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *UintFlag) Get(ctx *Context) uint {
+	return ctx.Uint(f.Name)
+}
+
+// Uint looks up the value of a local UintFlag, returns
+// 0 if not found
+func (cCtx *Context) Uint(name string) uint {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupUint(name, fs)
+	}
+	return 0
+}
+
+func lookupUint(name string, set *flag.FlagSet) uint {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
+		if err != nil {
+			return 0
+		}
+		return uint(parsed)
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_uint64.go

@@ -0,0 +1,108 @@
+package cli
+
+import (
+	"flag"
+	"fmt"
+	"strconv"
+)
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Uint64Flag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Uint64Flag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Uint64Flag) GetCategory() string {
+	return f.Category
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Uint64Flag) Apply(set *flag.FlagSet) error {
+	// set default value so that environment wont be able to overwrite it
+	f.defaultValue = f.Value
+	f.defaultValueSet = true
+
+	if val, source, found := flagFromEnvOrFile(f.EnvVars, f.FilePath); found {
+		if val != "" {
+			valInt, err := strconv.ParseUint(val, f.Base, 64)
+			if err != nil {
+				return fmt.Errorf("could not parse %q as uint64 value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+
+			f.Value = valInt
+			f.HasBeenSet = true
+		}
+	}
+
+	for _, name := range f.Names() {
+		if f.Destination != nil {
+			set.Uint64Var(f.Destination, name, f.Value, f.Usage)
+			continue
+		}
+		set.Uint64(name, f.Value, f.Usage)
+	}
+
+	return nil
+}
+
+// RunAction executes flag action if set
+func (f *Uint64Flag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint64(f.Name))
+	}
+
+	return nil
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Uint64Flag) GetValue() string {
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Uint64Flag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	if f.defaultValueSet {
+		return fmt.Sprintf("%d", f.defaultValue)
+	}
+	return fmt.Sprintf("%d", f.Value)
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Uint64Flag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Uint64Flag) Get(ctx *Context) uint64 {
+	return ctx.Uint64(f.Name)
+}
+
+// Uint64 looks up the value of a local Uint64Flag, returns
+// 0 if not found
+func (cCtx *Context) Uint64(name string) uint64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupUint64(name, fs)
+	}
+	return 0
+}
+
+func lookupUint64(name string, set *flag.FlagSet) uint64 {
+	f := set.Lookup(name)
+	if f != nil {
+		parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
+		if err != nil {
+			return 0
+		}
+		return parsed
+	}
+	return 0
+}

vendor/github.com/urfave/cli/v2/flag_uint64_slice.go

@@ -0,0 +1,219 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Uint64Slice wraps []int64 to satisfy flag.Value
+type Uint64Slice struct {
+	slice      []uint64
+	separator  separatorSpec
+	hasBeenSet bool
+}
+
+// NewUint64Slice makes an *Uint64Slice with default values
+func NewUint64Slice(defaults ...uint64) *Uint64Slice {
+	return &Uint64Slice{slice: append([]uint64{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (i *Uint64Slice) clone() *Uint64Slice {
+	n := &Uint64Slice{
+		slice:      make([]uint64, len(i.slice)),
+		hasBeenSet: i.hasBeenSet,
+	}
+	copy(n.slice, i.slice)
+	return n
+}
+
+// Set parses the value into an integer and appends it to the list of values
+func (i *Uint64Slice) Set(value string) error {
+	if !i.hasBeenSet {
+		i.slice = []uint64{}
+		i.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
+		i.hasBeenSet = true
+		return nil
+	}
+
+	for _, s := range i.separator.flagSplitMultiValues(value) {
+		tmp, err := strconv.ParseUint(strings.TrimSpace(s), 0, 64)
+		if err != nil {
+			return err
+		}
+
+		i.slice = append(i.slice, tmp)
+	}
+
+	return nil
+}
+
+func (i *Uint64Slice) WithSeparatorSpec(spec separatorSpec) {
+	i.separator = spec
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (i *Uint64Slice) String() string {
+	v := i.slice
+	if v == nil {
+		// treat nil the same as zero length non-nil
+		v = make([]uint64, 0)
+	}
+	str := fmt.Sprintf("%d", v)
+	str = strings.Replace(str, " ", ", ", -1)
+	str = strings.Replace(str, "[", "{", -1)
+	str = strings.Replace(str, "]", "}", -1)
+	return fmt.Sprintf("[]uint64%s", str)
+}
+
+// Serialize allows Uint64Slice to fulfill Serializer
+func (i *Uint64Slice) Serialize() string {
+	jsonBytes, _ := json.Marshal(i.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of ints set by this flag
+func (i *Uint64Slice) Value() []uint64 {
+	return i.slice
+}
+
+// Get returns the slice of ints set by this flag
+func (i *Uint64Slice) Get() interface{} {
+	return *i
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *Uint64SliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *Uint64SliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *Uint64SliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *Uint64SliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *Uint64SliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, i := range f.Value.Value() {
+			defaultVals = append(defaultVals, strconv.FormatUint(i, 10))
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *Uint64SliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *Uint64SliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *Uint64SliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *Uint64SliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]uint64, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *Uint64Slice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(Uint64Slice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	if val, source, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok && val != "" {
+		for _, s := range f.separator.flagSplitMultiValues(val) {
+			if err := setValue.Set(strings.TrimSpace(s)); err != nil {
+				return fmt.Errorf("could not parse %q as uint64 slice value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+		}
+
+		// Set this to false so that we reset the slice if we then set values from
+		// flags that have already been set by the environment.
+		setValue.hasBeenSet = false
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *Uint64SliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *Uint64SliceFlag) Get(ctx *Context) []uint64 {
+	return ctx.Uint64Slice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *Uint64SliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.Uint64Slice(f.Name))
+	}
+
+	return nil
+}
+
+// Uint64Slice looks up the value of a local Uint64SliceFlag, returns
+// nil if not found
+func (cCtx *Context) Uint64Slice(name string) []uint64 {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupUint64Slice(name, fs)
+	}
+	return nil
+}
+
+func lookupUint64Slice(name string, set *flag.FlagSet) []uint64 {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*Uint64Slice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/flag_uint_slice.go

@@ -0,0 +1,230 @@
+package cli
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// UintSlice wraps []int to satisfy flag.Value
+type UintSlice struct {
+	slice      []uint
+	separator  separatorSpec
+	hasBeenSet bool
+}
+
+// NewUintSlice makes an *UintSlice with default values
+func NewUintSlice(defaults ...uint) *UintSlice {
+	return &UintSlice{slice: append([]uint{}, defaults...)}
+}
+
+// clone allocate a copy of self object
+func (i *UintSlice) clone() *UintSlice {
+	n := &UintSlice{
+		slice:      make([]uint, len(i.slice)),
+		hasBeenSet: i.hasBeenSet,
+	}
+	copy(n.slice, i.slice)
+	return n
+}
+
+// TODO: Consistently have specific Set function for Int64 and Float64 ?
+// SetInt directly adds an integer to the list of values
+func (i *UintSlice) SetUint(value uint) {
+	if !i.hasBeenSet {
+		i.slice = []uint{}
+		i.hasBeenSet = true
+	}
+
+	i.slice = append(i.slice, value)
+}
+
+// Set parses the value into an integer and appends it to the list of values
+func (i *UintSlice) Set(value string) error {
+	if !i.hasBeenSet {
+		i.slice = []uint{}
+		i.hasBeenSet = true
+	}
+
+	if strings.HasPrefix(value, slPfx) {
+		// Deserializing assumes overwrite
+		_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
+		i.hasBeenSet = true
+		return nil
+	}
+
+	for _, s := range i.separator.flagSplitMultiValues(value) {
+		tmp, err := strconv.ParseUint(strings.TrimSpace(s), 0, 32)
+		if err != nil {
+			return err
+		}
+
+		i.slice = append(i.slice, uint(tmp))
+	}
+
+	return nil
+}
+
+func (i *UintSlice) WithSeparatorSpec(spec separatorSpec) {
+	i.separator = spec
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (i *UintSlice) String() string {
+	v := i.slice
+	if v == nil {
+		// treat nil the same as zero length non-nil
+		v = make([]uint, 0)
+	}
+	str := fmt.Sprintf("%d", v)
+	str = strings.Replace(str, " ", ", ", -1)
+	str = strings.Replace(str, "[", "{", -1)
+	str = strings.Replace(str, "]", "}", -1)
+	return fmt.Sprintf("[]uint%s", str)
+}
+
+// Serialize allows UintSlice to fulfill Serializer
+func (i *UintSlice) Serialize() string {
+	jsonBytes, _ := json.Marshal(i.slice)
+	return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
+}
+
+// Value returns the slice of ints set by this flag
+func (i *UintSlice) Value() []uint {
+	return i.slice
+}
+
+// Get returns the slice of ints set by this flag
+func (i *UintSlice) Get() interface{} {
+	return *i
+}
+
+// String returns a readable representation of this value
+// (for usage defaults)
+func (f *UintSliceFlag) String() string {
+	return FlagStringer(f)
+}
+
+// TakesValue returns true of the flag takes a value, otherwise false
+func (f *UintSliceFlag) TakesValue() bool {
+	return true
+}
+
+// GetUsage returns the usage string for the flag
+func (f *UintSliceFlag) GetUsage() string {
+	return f.Usage
+}
+
+// GetCategory returns the category for the flag
+func (f *UintSliceFlag) GetCategory() string {
+	return f.Category
+}
+
+// GetValue returns the flags value as string representation and an empty
+// string if the flag takes no value at all.
+func (f *UintSliceFlag) GetValue() string {
+	var defaultVals []string
+	if f.Value != nil && len(f.Value.Value()) > 0 {
+		for _, i := range f.Value.Value() {
+			defaultVals = append(defaultVals, strconv.FormatUint(uint64(i), 10))
+		}
+	}
+	return strings.Join(defaultVals, ", ")
+}
+
+// GetDefaultText returns the default text for this flag
+func (f *UintSliceFlag) GetDefaultText() string {
+	if f.DefaultText != "" {
+		return f.DefaultText
+	}
+	return f.GetValue()
+}
+
+// GetEnvVars returns the env vars for this flag
+func (f *UintSliceFlag) GetEnvVars() []string {
+	return f.EnvVars
+}
+
+// IsSliceFlag implements DocGenerationSliceFlag.
+func (f *UintSliceFlag) IsSliceFlag() bool {
+	return true
+}
+
+// Apply populates the flag given the flag set and environment
+func (f *UintSliceFlag) Apply(set *flag.FlagSet) error {
+	// apply any default
+	if f.Destination != nil && f.Value != nil {
+		f.Destination.slice = make([]uint, len(f.Value.slice))
+		copy(f.Destination.slice, f.Value.slice)
+	}
+
+	// resolve setValue (what we will assign to the set)
+	var setValue *UintSlice
+	switch {
+	case f.Destination != nil:
+		setValue = f.Destination
+	case f.Value != nil:
+		setValue = f.Value.clone()
+	default:
+		setValue = new(UintSlice)
+		setValue.WithSeparatorSpec(f.separator)
+	}
+
+	if val, source, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok && val != "" {
+		for _, s := range f.separator.flagSplitMultiValues(val) {
+			if err := setValue.Set(strings.TrimSpace(s)); err != nil {
+				return fmt.Errorf("could not parse %q as uint slice value from %s for flag %s: %s", val, source, f.Name, err)
+			}
+		}
+
+		// Set this to false so that we reset the slice if we then set values from
+		// flags that have already been set by the environment.
+		setValue.hasBeenSet = false
+		f.HasBeenSet = true
+	}
+
+	for _, name := range f.Names() {
+		set.Var(setValue, name, f.Usage)
+	}
+
+	return nil
+}
+
+func (f *UintSliceFlag) WithSeparatorSpec(spec separatorSpec) {
+	f.separator = spec
+}
+
+// Get returns the flag’s value in the given Context.
+func (f *UintSliceFlag) Get(ctx *Context) []uint {
+	return ctx.UintSlice(f.Name)
+}
+
+// RunAction executes flag action if set
+func (f *UintSliceFlag) RunAction(c *Context) error {
+	if f.Action != nil {
+		return f.Action(c, c.UintSlice(f.Name))
+	}
+
+	return nil
+}
+
+// UintSlice looks up the value of a local UintSliceFlag, returns
+// nil if not found
+func (cCtx *Context) UintSlice(name string) []uint {
+	if fs := cCtx.lookupFlagSet(name); fs != nil {
+		return lookupUintSlice(name, fs)
+	}
+	return nil
+}
+
+func lookupUintSlice(name string, set *flag.FlagSet) []uint {
+	f := set.Lookup(name)
+	if f != nil {
+		if slice, ok := unwrapFlagValue(f.Value).(*UintSlice); ok {
+			return slice.Value()
+		}
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/funcs.go

@@ -0,0 +1,47 @@
+package cli
+
+// BashCompleteFunc is an action to execute when the shell completion flag is set
+type BashCompleteFunc func(*Context)
+
+// BeforeFunc is an action to execute before any subcommands are run, but after
+// the context is ready if a non-nil error is returned, no subcommands are run
+type BeforeFunc func(*Context) error
+
+// AfterFunc is an action to execute after any subcommands are run, but after the
+// subcommand has finished it is run even if Action() panics
+type AfterFunc func(*Context) error
+
+// ActionFunc is the action to execute when no subcommands are specified
+type ActionFunc func(*Context) error
+
+// CommandNotFoundFunc is executed if the proper command cannot be found
+type CommandNotFoundFunc func(*Context, string)
+
+// OnUsageErrorFunc is executed if a usage error occurs. This is useful for displaying
+// customized usage error messages.  This function is able to replace the
+// original error messages.  If this function is not set, the "Incorrect usage"
+// is displayed and the execution is interrupted.
+type OnUsageErrorFunc func(cCtx *Context, err error, isSubcommand bool) error
+
+// InvalidFlagAccessFunc is executed when an invalid flag is accessed from the context.
+type InvalidFlagAccessFunc func(*Context, string)
+
+// ExitErrHandlerFunc is executed if provided in order to handle exitError values
+// returned by Actions and Before/After functions.
+type ExitErrHandlerFunc func(cCtx *Context, err error)
+
+// FlagStringFunc is used by the help generation to display a flag, which is
+// expected to be a single line.
+type FlagStringFunc func(Flag) string
+
+// FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix
+// text for a flag's full name.
+type FlagNamePrefixFunc func(fullName []string, placeholder string) string
+
+// FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help
+// with the environment variable details.
+type FlagEnvHintFunc func(envVars []string, str string) string
+
+// FlagFileHintFunc is used by the default FlagStringFunc to annotate flag help
+// with the file path details.
+type FlagFileHintFunc func(filePath, str string) string

vendor/github.com/urfave/cli/v2/help.go

@@ -0,0 +1,564 @@
+package cli
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"text/tabwriter"
+	"text/template"
+	"unicode/utf8"
+)
+
+const (
+	helpName  = "help"
+	helpAlias = "h"
+)
+
+// this instance is to avoid recursion in the ShowCommandHelp which can
+// add a help command again
+var helpCommandDontUse = &Command{
+	Name:      helpName,
+	Aliases:   []string{helpAlias},
+	Usage:     "Shows a list of commands or help for one command",
+	ArgsUsage: "[command]",
+}
+
+var helpCommand = &Command{
+	Name:      helpName,
+	Aliases:   []string{helpAlias},
+	Usage:     "Shows a list of commands or help for one command",
+	ArgsUsage: "[command]",
+	Action: func(cCtx *Context) error {
+		args := cCtx.Args()
+		argsPresent := args.First() != ""
+		firstArg := args.First()
+
+		// This action can be triggered by a "default" action of a command
+		// or via cmd.Run when cmd == helpCmd. So we have following possibilities
+		//
+		// 1 $ app
+		// 2 $ app help
+		// 3 $ app foo
+		// 4 $ app help foo
+		// 5 $ app foo help
+		// 6 $ app foo -h (with no other sub-commands nor flags defined)
+
+		// Case 4. when executing a help command set the context to parent
+		// to allow resolution of subsequent args. This will transform
+		// $ app help foo
+		//     to
+		// $ app foo
+		// which will then be handled as case 3
+		if cCtx.Command.Name == helpName || cCtx.Command.Name == helpAlias {
+			cCtx = cCtx.parentContext
+		}
+
+		// Case 4. $ app hello foo
+		// foo is the command for which help needs to be shown
+		if argsPresent {
+			return ShowCommandHelp(cCtx, firstArg)
+		}
+
+		// Case 1 & 2
+		// Special case when running help on main app itself as opposed to individual
+		// commands/subcommands
+		if cCtx.parentContext.App == nil {
+			_ = ShowAppHelp(cCtx)
+			return nil
+		}
+
+		// Case 3, 5
+		if (len(cCtx.Command.Subcommands) == 1 && !cCtx.Command.HideHelp && !cCtx.Command.HideHelpCommand) ||
+			(len(cCtx.Command.Subcommands) == 0 && cCtx.Command.HideHelp) {
+			templ := cCtx.Command.CustomHelpTemplate
+			if templ == "" {
+				templ = CommandHelpTemplate
+			}
+			HelpPrinter(cCtx.App.Writer, templ, cCtx.Command)
+			return nil
+		}
+
+		// Case 6, handling incorporated in the callee itself
+		return ShowSubcommandHelp(cCtx)
+	},
+}
+
+// Prints help for the App or Command
+type helpPrinter func(w io.Writer, templ string, data interface{})
+
+// Prints help for the App or Command with custom template function.
+type helpPrinterCustom func(w io.Writer, templ string, data interface{}, customFunc map[string]interface{})
+
+// HelpPrinter is a function that writes the help output. If not set explicitly,
+// this calls HelpPrinterCustom using only the default template functions.
+//
+// If custom logic for printing help is required, this function can be
+// overridden. If the ExtraInfo field is defined on an App, this function
+// should not be modified, as HelpPrinterCustom will be used directly in order
+// to capture the extra information.
+var HelpPrinter helpPrinter = printHelp
+
+// HelpPrinterCustom is a function that writes the help output. It is used as
+// the default implementation of HelpPrinter, and may be called directly if
+// the ExtraInfo field is set on an App.
+//
+// In the default implementation, if the customFuncs argument contains a
+// "wrapAt" key, which is a function which takes no arguments and returns
+// an int, this int value will be used to produce a "wrap" function used
+// by the default template to wrap long lines.
+var HelpPrinterCustom helpPrinterCustom = printHelpCustom
+
+// VersionPrinter prints the version for the App
+var VersionPrinter = printVersion
+
+// ShowAppHelpAndExit - Prints the list of subcommands for the app and exits with exit code.
+func ShowAppHelpAndExit(c *Context, exitCode int) {
+	_ = ShowAppHelp(c)
+	os.Exit(exitCode)
+}
+
+// ShowAppHelp is an action that displays the help.
+func ShowAppHelp(cCtx *Context) error {
+	tpl := cCtx.App.CustomAppHelpTemplate
+	if tpl == "" {
+		tpl = AppHelpTemplate
+	}
+
+	if cCtx.App.ExtraInfo == nil {
+		HelpPrinter(cCtx.App.Writer, tpl, cCtx.App)
+		return nil
+	}
+
+	customAppData := func() map[string]interface{} {
+		return map[string]interface{}{
+			"ExtraInfo": cCtx.App.ExtraInfo,
+		}
+	}
+	HelpPrinterCustom(cCtx.App.Writer, tpl, cCtx.App, customAppData())
+
+	return nil
+}
+
+// DefaultAppComplete prints the list of subcommands as the default app completion method
+func DefaultAppComplete(cCtx *Context) {
+	DefaultCompleteWithFlags(nil)(cCtx)
+}
+
+func printCommandSuggestions(commands []*Command, writer io.Writer) {
+	for _, command := range commands {
+		if command.Hidden {
+			continue
+		}
+		if strings.HasSuffix(os.Getenv("SHELL"), "zsh") {
+			for _, name := range command.Names() {
+				_, _ = fmt.Fprintf(writer, "%s:%s\n", name, command.Usage)
+			}
+		} else {
+			for _, name := range command.Names() {
+				_, _ = fmt.Fprintf(writer, "%s\n", name)
+			}
+		}
+	}
+}
+
+func cliArgContains(flagName string) bool {
+	for _, name := range strings.Split(flagName, ",") {
+		name = strings.TrimSpace(name)
+		count := utf8.RuneCountInString(name)
+		if count > 2 {
+			count = 2
+		}
+		flag := fmt.Sprintf("%s%s", strings.Repeat("-", count), name)
+		for _, a := range os.Args {
+			if a == flag {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func printFlagSuggestions(lastArg string, flags []Flag, writer io.Writer) {
+	cur := strings.TrimPrefix(lastArg, "-")
+	cur = strings.TrimPrefix(cur, "-")
+	for _, flag := range flags {
+		if bflag, ok := flag.(*BoolFlag); ok && bflag.Hidden {
+			continue
+		}
+		for _, name := range flag.Names() {
+			name = strings.TrimSpace(name)
+			// this will get total count utf8 letters in flag name
+			count := utf8.RuneCountInString(name)
+			if count > 2 {
+				count = 2 // reuse this count to generate single - or -- in flag completion
+			}
+			// if flag name has more than one utf8 letter and last argument in cli has -- prefix then
+			// skip flag completion for short flags example -v or -x
+			if strings.HasPrefix(lastArg, "--") && count == 1 {
+				continue
+			}
+			// match if last argument matches this flag and it is not repeated
+			if strings.HasPrefix(name, cur) && cur != name && !cliArgContains(name) {
+				flagCompletion := fmt.Sprintf("%s%s", strings.Repeat("-", count), name)
+				_, _ = fmt.Fprintln(writer, flagCompletion)
+			}
+		}
+	}
+}
+
+func DefaultCompleteWithFlags(cmd *Command) func(cCtx *Context) {
+	return func(cCtx *Context) {
+		var lastArg string
+
+		// TODO: This shouldnt depend on os.Args rather it should
+		// depend on root arguments passed to App
+		if len(os.Args) > 2 {
+			lastArg = os.Args[len(os.Args)-2]
+		}
+
+		if lastArg != "" {
+			if strings.HasPrefix(lastArg, "-") {
+				if cmd != nil {
+					printFlagSuggestions(lastArg, cmd.Flags, cCtx.App.Writer)
+
+					return
+				}
+
+				printFlagSuggestions(lastArg, cCtx.App.Flags, cCtx.App.Writer)
+
+				return
+			}
+		}
+
+		if cmd != nil {
+			printCommandSuggestions(cmd.Subcommands, cCtx.App.Writer)
+			return
+		}
+
+		printCommandSuggestions(cCtx.Command.Subcommands, cCtx.App.Writer)
+	}
+}
+
+// ShowCommandHelpAndExit - exits with code after showing help
+func ShowCommandHelpAndExit(c *Context, command string, code int) {
+	_ = ShowCommandHelp(c, command)
+	os.Exit(code)
+}
+
+// ShowCommandHelp prints help for the given command
+func ShowCommandHelp(ctx *Context, command string) error {
+
+	commands := ctx.App.Commands
+	if ctx.Command.Subcommands != nil {
+		commands = ctx.Command.Subcommands
+	}
+	for _, c := range commands {
+		if c.HasName(command) {
+			if !ctx.App.HideHelpCommand && !c.HasName(helpName) && len(c.Subcommands) != 0 && c.Command(helpName) == nil {
+				c.Subcommands = append(c.Subcommands, helpCommandDontUse)
+			}
+			if !ctx.App.HideHelp && HelpFlag != nil {
+				c.appendFlag(HelpFlag)
+			}
+			templ := c.CustomHelpTemplate
+			if templ == "" {
+				if len(c.Subcommands) == 0 {
+					templ = CommandHelpTemplate
+				} else {
+					templ = SubcommandHelpTemplate
+				}
+			}
+
+			HelpPrinter(ctx.App.Writer, templ, c)
+
+			return nil
+		}
+	}
+
+	if ctx.App.CommandNotFound == nil {
+		errMsg := fmt.Sprintf("No help topic for '%v'", command)
+		if ctx.App.Suggest && SuggestCommand != nil {
+			if suggestion := SuggestCommand(ctx.Command.Subcommands, command); suggestion != "" {
+				errMsg += ". " + suggestion
+			}
+		}
+		return Exit(errMsg, 3)
+	}
+
+	ctx.App.CommandNotFound(ctx, command)
+	return nil
+}
+
+// ShowSubcommandHelpAndExit - Prints help for the given subcommand and exits with exit code.
+func ShowSubcommandHelpAndExit(c *Context, exitCode int) {
+	_ = ShowSubcommandHelp(c)
+	os.Exit(exitCode)
+}
+
+// ShowSubcommandHelp prints help for the given subcommand
+func ShowSubcommandHelp(cCtx *Context) error {
+	if cCtx == nil {
+		return nil
+	}
+	// use custom template when provided (fixes #1703)
+	templ := SubcommandHelpTemplate
+	if cCtx.Command != nil && cCtx.Command.CustomHelpTemplate != "" {
+		templ = cCtx.Command.CustomHelpTemplate
+	}
+	HelpPrinter(cCtx.App.Writer, templ, cCtx.Command)
+	return nil
+}
+
+// ShowVersion prints the version number of the App
+func ShowVersion(cCtx *Context) {
+	VersionPrinter(cCtx)
+}
+
+func printVersion(cCtx *Context) {
+	_, _ = fmt.Fprintf(cCtx.App.Writer, "%v version %v\n", cCtx.App.Name, cCtx.App.Version)
+}
+
+// ShowCompletions prints the lists of commands within a given context
+func ShowCompletions(cCtx *Context) {
+	c := cCtx.Command
+	if c != nil && c.BashComplete != nil {
+		c.BashComplete(cCtx)
+	}
+}
+
+// ShowCommandCompletions prints the custom completions for a given command
+func ShowCommandCompletions(ctx *Context, command string) {
+	c := ctx.Command.Command(command)
+	if c != nil {
+		if c.BashComplete != nil {
+			c.BashComplete(ctx)
+		} else {
+			DefaultCompleteWithFlags(c)(ctx)
+		}
+	}
+
+}
+
+// printHelpCustom is the default implementation of HelpPrinterCustom.
+//
+// The customFuncs map will be combined with a default template.FuncMap to
+// allow using arbitrary functions in template rendering.
+func printHelpCustom(out io.Writer, templ string, data interface{}, customFuncs map[string]interface{}) {
+
+	const maxLineLength = 10000
+
+	funcMap := template.FuncMap{
+		"join":           strings.Join,
+		"subtract":       subtract,
+		"indent":         indent,
+		"nindent":        nindent,
+		"trim":           strings.TrimSpace,
+		"wrap":           func(input string, offset int) string { return wrap(input, offset, maxLineLength) },
+		"offset":         offset,
+		"offsetCommands": offsetCommands,
+	}
+
+	if customFuncs["wrapAt"] != nil {
+		if wa, ok := customFuncs["wrapAt"]; ok {
+			if waf, ok := wa.(func() int); ok {
+				wrapAt := waf()
+				customFuncs["wrap"] = func(input string, offset int) string {
+					return wrap(input, offset, wrapAt)
+				}
+			}
+		}
+	}
+
+	for key, value := range customFuncs {
+		funcMap[key] = value
+	}
+
+	w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
+	t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
+	templates := map[string]string{
+		"helpNameTemplate":                  helpNameTemplate,
+		"usageTemplate":                     usageTemplate,
+		"descriptionTemplate":               descriptionTemplate,
+		"visibleCommandTemplate":            visibleCommandTemplate,
+		"copyrightTemplate":                 copyrightTemplate,
+		"versionTemplate":                   versionTemplate,
+		"visibleFlagCategoryTemplate":       visibleFlagCategoryTemplate,
+		"visibleFlagTemplate":               visibleFlagTemplate,
+		"visibleGlobalFlagCategoryTemplate": strings.Replace(visibleFlagCategoryTemplate, "OPTIONS", "GLOBAL OPTIONS", -1),
+		"authorsTemplate":                   authorsTemplate,
+		"visibleCommandCategoryTemplate":    visibleCommandCategoryTemplate,
+	}
+	for name, value := range templates {
+		if _, err := t.New(name).Parse(value); err != nil {
+			if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
+				_, _ = fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
+			}
+		}
+	}
+
+	err := t.Execute(w, data)
+	if err != nil {
+		// If the writer is closed, t.Execute will fail, and there's nothing
+		// we can do to recover.
+		if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
+			_, _ = fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
+		}
+		return
+	}
+	_ = w.Flush()
+}
+
+func printHelp(out io.Writer, templ string, data interface{}) {
+	HelpPrinterCustom(out, templ, data, nil)
+}
+
+func checkVersion(cCtx *Context) bool {
+	found := false
+	for _, name := range VersionFlag.Names() {
+		if cCtx.Bool(name) {
+			found = true
+		}
+	}
+	return found
+}
+
+func checkHelp(cCtx *Context) bool {
+	if HelpFlag == nil {
+		return false
+	}
+	found := false
+	for _, name := range HelpFlag.Names() {
+		if cCtx.Bool(name) {
+			found = true
+			break
+		}
+	}
+
+	return found
+}
+
+func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
+	if !a.EnableBashCompletion {
+		return false, arguments
+	}
+
+	pos := len(arguments) - 1
+	lastArg := arguments[pos]
+
+	if lastArg != "--generate-bash-completion" {
+		return false, arguments
+	}
+
+	return true, arguments[:pos]
+}
+
+func checkCompletions(cCtx *Context) bool {
+	if !cCtx.shellComplete {
+		return false
+	}
+
+	if args := cCtx.Args(); args.Present() {
+		name := args.First()
+		if cmd := cCtx.Command.Command(name); cmd != nil {
+			// let the command handle the completion
+			return false
+		}
+	}
+
+	ShowCompletions(cCtx)
+	return true
+}
+
+func subtract(a, b int) int {
+	return a - b
+}
+
+func indent(spaces int, v string) string {
+	pad := strings.Repeat(" ", spaces)
+	return pad + strings.Replace(v, "\n", "\n"+pad, -1)
+}
+
+func nindent(spaces int, v string) string {
+	return "\n" + indent(spaces, v)
+}
+
+func wrap(input string, offset int, wrapAt int) string {
+	var ss []string
+
+	lines := strings.Split(input, "\n")
+
+	padding := strings.Repeat(" ", offset)
+
+	for i, line := range lines {
+		if line == "" {
+			ss = append(ss, line)
+		} else {
+			wrapped := wrapLine(line, offset, wrapAt, padding)
+			if i == 0 {
+				ss = append(ss, wrapped)
+			} else {
+				ss = append(ss, padding+wrapped)
+
+			}
+
+		}
+	}
+
+	return strings.Join(ss, "\n")
+}
+
+func wrapLine(input string, offset int, wrapAt int, padding string) string {
+	if wrapAt <= offset || len(input) <= wrapAt-offset {
+		return input
+	}
+
+	lineWidth := wrapAt - offset
+	words := strings.Fields(input)
+	if len(words) == 0 {
+		return input
+	}
+
+	wrapped := words[0]
+	spaceLeft := lineWidth - len(wrapped)
+	for _, word := range words[1:] {
+		if len(word)+1 > spaceLeft {
+			wrapped += "\n" + padding + word
+			spaceLeft = lineWidth - len(word)
+		} else {
+			wrapped += " " + word
+			spaceLeft -= 1 + len(word)
+		}
+	}
+
+	return wrapped
+}
+
+func offset(input string, fixed int) int {
+	return len(input) + fixed
+}
+
+// this function tries to find the max width of the names column
+// so say we have the following rows for help
+//
+//	foo1, foo2, foo3  some string here
+//	bar1, b2 some other string here
+//
+// We want to offset the 2nd row usage by some amount so that everything
+// is aligned
+//
+//	foo1, foo2, foo3  some string here
+//	bar1, b2          some other string here
+//
+// to find that offset we find the length of all the rows and use the max
+// to calculate the offset
+func offsetCommands(cmds []*Command, fixed int) int {
+	var max int = 0
+	for _, cmd := range cmds {
+		s := strings.Join(cmd.Names(), ", ")
+		if len(s) > max {
+			max = len(s)
+		}
+	}
+	return max + fixed
+}

vendor/github.com/urfave/cli/v2/mkdocs-reqs.txt

@@ -0,0 +1,5 @@
+mkdocs-git-revision-date-localized-plugin~=1.0
+mkdocs-material-extensions~=1.0
+mkdocs-material~=8.2
+mkdocs~=1.3
+pygments~=2.12

vendor/github.com/urfave/cli/v2/mkdocs.yml

@@ -0,0 +1,107 @@
+# NOTE: the mkdocs dependencies will need to be installed out of
+# band until this whole thing gets more automated:
+#
+#     pip install -r mkdocs-reqs.txt
+#
+
+site_name: urfave/cli
+site_url: https://cli.urfave.org/
+repo_url: https://github.com/urfave/cli
+edit_uri: edit/main/docs/
+nav:
+  - Home:
+      - Welcome: index.md
+      - Contributing: CONTRIBUTING.md
+      - Code of Conduct: CODE_OF_CONDUCT.md
+      - Releasing: RELEASING.md
+      - Security: SECURITY.md
+      - Migrate v1 to v2: migrate-v1-to-v2.md
+  - v2 Manual:
+      - Getting Started: v2/getting-started.md
+      - Migrating From Older Releases: v2/migrating-from-older-releases.md
+      - Examples:
+          - Greet: v2/examples/greet.md
+          - Arguments: v2/examples/arguments.md
+          - Flags: v2/examples/flags.md
+          - Subcommands: v2/examples/subcommands.md
+          - Subcommands Categories: v2/examples/subcommands-categories.md
+          - Exit Codes: v2/examples/exit-codes.md
+          - Combining Short Options: v2/examples/combining-short-options.md
+          - Bash Completions: v2/examples/bash-completions.md
+          - Generated Help Text: v2/examples/generated-help-text.md
+          - Version Flag: v2/examples/version-flag.md
+          - Timestamp Flag: v2/examples/timestamp-flag.md
+          - Suggestions: v2/examples/suggestions.md
+          - Full API Example: v2/examples/full-api-example.md
+  - v1 Manual:
+      - Getting Started: v1/getting-started.md
+      - Migrating to v2: v1/migrating-to-v2.md
+      - Examples:
+          - Greet: v1/examples/greet.md
+          - Arguments: v1/examples/arguments.md
+          - Flags: v1/examples/flags.md
+          - Subcommands: v1/examples/subcommands.md
+          - Subcommands (Categories): v1/examples/subcommands-categories.md
+          - Exit Codes: v1/examples/exit-codes.md
+          - Combining Short Options: v1/examples/combining-short-options.md
+          - Bash Completions: v1/examples/bash-completions.md
+          - Generated Help Text: v1/examples/generated-help-text.md
+          - Version Flag: v1/examples/version-flag.md
+
+theme:
+  name: material
+  palette:
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      toggle:
+        icon: material/brightness-4
+        name: dark mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      toggle:
+        icon: material/brightness-7
+        name: light mode
+  features:
+    - content.code.annotate
+    - navigation.top
+    - navigation.instant
+    - navigation.expand
+    - navigation.sections
+    - navigation.tabs
+    - navigation.tabs.sticky
+plugins:
+  - git-revision-date-localized
+  - search
+  - tags
+# NOTE: this is the recommended configuration from
+# https://squidfunk.github.io/mkdocs-material/setup/extensions/#recommended-configuration
+markdown_extensions:
+  - abbr
+  - admonition
+  - attr_list
+  - def_list
+  - footnotes
+  - meta
+  - md_in_html
+  - toc:
+      permalink: true
+  - pymdownx.arithmatex:
+      generic: true
+  - pymdownx.betterem:
+      smart_enable: all
+  - pymdownx.caret
+  - pymdownx.details
+  - pymdownx.emoji:
+      emoji_index: !!python/name:materialx.emoji.twemoji
+      emoji_generator: !!python/name:materialx.emoji.to_svg
+  - pymdownx.highlight
+  - pymdownx.inlinehilite
+  - pymdownx.keys
+  - pymdownx.mark
+  - pymdownx.smartsymbols
+  - pymdownx.superfences
+  - pymdownx.tabbed:
+      alternate_style: true
+  - pymdownx.tasklist:
+      custom_checkbox: true
+  - pymdownx.tilde

vendor/github.com/urfave/cli/v2/parse.go

@@ -0,0 +1,102 @@
+package cli
+
+import (
+	"flag"
+	"strings"
+)
+
+type iterativeParser interface {
+	newFlagSet() (*flag.FlagSet, error)
+	useShortOptionHandling() bool
+}
+
+// To enable short-option handling (e.g., "-it" vs "-i -t") we have to
+// iteratively catch parsing errors. This way we achieve LR parsing without
+// transforming any arguments. Otherwise, there is no way we can discriminate
+// combined short options from common arguments that should be left untouched.
+// Pass `shellComplete` to continue parsing options on failure during shell
+// completion when, the user-supplied options may be incomplete.
+func parseIter(set *flag.FlagSet, ip iterativeParser, args []string, shellComplete bool) error {
+	for {
+		err := set.Parse(args)
+		if !ip.useShortOptionHandling() || err == nil {
+			if shellComplete {
+				return nil
+			}
+			return err
+		}
+
+		trimmed, trimErr := flagFromError(err)
+		if trimErr != nil {
+			return err
+		}
+
+		// regenerate the initial args with the split short opts
+		argsWereSplit := false
+		for i, arg := range args {
+			// skip args that are not part of the error message
+			if name := strings.TrimLeft(arg, "-"); name != trimmed {
+				continue
+			}
+
+			// if we can't split, the error was accurate
+			shortOpts := splitShortOptions(set, arg)
+			if len(shortOpts) == 1 {
+				return err
+			}
+
+			// swap current argument with the split version
+			// do not include args that parsed correctly so far as it would
+			// trigger Value.Set() on those args and would result in
+			// duplicates for slice type flags
+			args = append(shortOpts, args[i+1:]...)
+			argsWereSplit = true
+			break
+		}
+
+		// This should be an impossible to reach code path, but in case the arg
+		// splitting failed to happen, this will prevent infinite loops
+		if !argsWereSplit {
+			return err
+		}
+	}
+}
+
+const providedButNotDefinedErrMsg = "flag provided but not defined: -"
+
+// flagFromError tries to parse a provided flag from an error message. If the
+// parsing fials, it returns the input error and an empty string
+func flagFromError(err error) (string, error) {
+	errStr := err.Error()
+	trimmed := strings.TrimPrefix(errStr, providedButNotDefinedErrMsg)
+	if errStr == trimmed {
+		return "", err
+	}
+	return trimmed, nil
+}
+
+func splitShortOptions(set *flag.FlagSet, arg string) []string {
+	shortFlagsExist := func(s string) bool {
+		for _, c := range s[1:] {
+			if f := set.Lookup(string(c)); f == nil {
+				return false
+			}
+		}
+		return true
+	}
+
+	if !isSplittable(arg) || !shortFlagsExist(arg) {
+		return []string{arg}
+	}
+
+	separated := make([]string, 0, len(arg)-1)
+	for _, flagChar := range arg[1:] {
+		separated = append(separated, "-"+string(flagChar))
+	}
+
+	return separated
+}
+
+func isSplittable(flagArg string) bool {
+	return strings.HasPrefix(flagArg, "-") && !strings.HasPrefix(flagArg, "--") && len(flagArg) > 2
+}

vendor/github.com/urfave/cli/v2/sliceflag.go

@@ -0,0 +1,290 @@
+package cli
+
+import (
+	"flag"
+	"reflect"
+)
+
+type (
+	// SliceFlag extends implementations like StringSliceFlag and IntSliceFlag with support for using slices directly,
+	// as Value and/or Destination.
+	// See also SliceFlagTarget, MultiStringFlag, MultiFloat64Flag, MultiInt64Flag, MultiIntFlag.
+	SliceFlag[T SliceFlagTarget[E], S ~[]E, E any] struct {
+		Target      T
+		Value       S
+		Destination *S
+	}
+
+	// SliceFlagTarget models a target implementation for use with SliceFlag.
+	// The three methods, SetValue, SetDestination, and GetDestination, are necessary to propagate Value and
+	// Destination, where Value is propagated inwards (initially), and Destination is propagated outwards (on every
+	// update).
+	SliceFlagTarget[E any] interface {
+		Flag
+		RequiredFlag
+		DocGenerationFlag
+		VisibleFlag
+		CategorizableFlag
+
+		// SetValue should propagate the given slice to the target, ideally as a new value.
+		// Note that a nil slice should nil/clear any existing value (modelled as ~[]E).
+		SetValue(slice []E)
+		// SetDestination should propagate the given slice to the target, ideally as a new value.
+		// Note that a nil slice should nil/clear any existing value (modelled as ~*[]E).
+		SetDestination(slice []E)
+		// GetDestination should return the current value referenced by any destination, or nil if nil/unset.
+		GetDestination() []E
+	}
+
+	// MultiStringFlag extends StringSliceFlag with support for using slices directly, as Value and/or Destination.
+	// See also SliceFlag.
+	MultiStringFlag = SliceFlag[*StringSliceFlag, []string, string]
+
+	// MultiFloat64Flag extends Float64SliceFlag with support for using slices directly, as Value and/or Destination.
+	// See also SliceFlag.
+	MultiFloat64Flag = SliceFlag[*Float64SliceFlag, []float64, float64]
+
+	// MultiInt64Flag extends Int64SliceFlag with support for using slices directly, as Value and/or Destination.
+	// See also SliceFlag.
+	MultiInt64Flag = SliceFlag[*Int64SliceFlag, []int64, int64]
+
+	// MultiIntFlag extends IntSliceFlag with support for using slices directly, as Value and/or Destination.
+	// See also SliceFlag.
+	MultiIntFlag = SliceFlag[*IntSliceFlag, []int, int]
+
+	flagValueHook struct {
+		value Generic
+		hook  func()
+	}
+)
+
+var (
+	// compile time assertions
+
+	_ SliceFlagTarget[string]  = (*StringSliceFlag)(nil)
+	_ SliceFlagTarget[string]  = (*SliceFlag[*StringSliceFlag, []string, string])(nil)
+	_ SliceFlagTarget[string]  = (*MultiStringFlag)(nil)
+	_ SliceFlagTarget[float64] = (*MultiFloat64Flag)(nil)
+	_ SliceFlagTarget[int64]   = (*MultiInt64Flag)(nil)
+	_ SliceFlagTarget[int]     = (*MultiIntFlag)(nil)
+
+	_ Generic    = (*flagValueHook)(nil)
+	_ Serializer = (*flagValueHook)(nil)
+)
+
+func (x *SliceFlag[T, S, E]) Apply(set *flag.FlagSet) error {
+	x.Target.SetValue(x.convertSlice(x.Value))
+
+	destination := x.Destination
+	if destination == nil {
+		x.Target.SetDestination(nil)
+
+		return x.Target.Apply(set)
+	}
+
+	x.Target.SetDestination(x.convertSlice(*destination))
+
+	return applyFlagValueHook(set, x.Target.Apply, func() {
+		*destination = x.Target.GetDestination()
+	})
+}
+
+func (x *SliceFlag[T, S, E]) convertSlice(slice S) []E {
+	result := make([]E, len(slice))
+	copy(result, slice)
+	return result
+}
+
+func (x *SliceFlag[T, S, E]) SetValue(slice S) {
+	x.Value = slice
+}
+
+func (x *SliceFlag[T, S, E]) SetDestination(slice S) {
+	if slice != nil {
+		x.Destination = &slice
+	} else {
+		x.Destination = nil
+	}
+}
+
+func (x *SliceFlag[T, S, E]) GetDestination() S {
+	if destination := x.Destination; destination != nil {
+		return *destination
+	}
+	return nil
+}
+
+func (x *SliceFlag[T, S, E]) String() string         { return x.Target.String() }
+func (x *SliceFlag[T, S, E]) Names() []string        { return x.Target.Names() }
+func (x *SliceFlag[T, S, E]) IsSet() bool            { return x.Target.IsSet() }
+func (x *SliceFlag[T, S, E]) IsRequired() bool       { return x.Target.IsRequired() }
+func (x *SliceFlag[T, S, E]) TakesValue() bool       { return x.Target.TakesValue() }
+func (x *SliceFlag[T, S, E]) GetUsage() string       { return x.Target.GetUsage() }
+func (x *SliceFlag[T, S, E]) GetValue() string       { return x.Target.GetValue() }
+func (x *SliceFlag[T, S, E]) GetDefaultText() string { return x.Target.GetDefaultText() }
+func (x *SliceFlag[T, S, E]) GetEnvVars() []string   { return x.Target.GetEnvVars() }
+func (x *SliceFlag[T, S, E]) IsVisible() bool        { return x.Target.IsVisible() }
+func (x *SliceFlag[T, S, E]) GetCategory() string    { return x.Target.GetCategory() }
+
+func (x *flagValueHook) Set(value string) error {
+	if err := x.value.Set(value); err != nil {
+		return err
+	}
+	x.hook()
+	return nil
+}
+
+func (x *flagValueHook) String() string {
+	// note: this is necessary due to the way Go's flag package handles defaults
+	isZeroValue := func(f flag.Value, v string) bool {
+		/*
+			https://cs.opensource.google/go/go/+/refs/tags/go1.18.3:src/flag/flag.go;drc=2580d0e08d5e9f979b943758d3c49877fb2324cb;l=453
+
+			Copyright (c) 2009 The Go Authors. All rights reserved.
+			Redistribution and use in source and binary forms, with or without
+			modification, are permitted provided that the following conditions are
+			met:
+			   * Redistributions of source code must retain the above copyright
+			notice, this list of conditions and the following disclaimer.
+			   * Redistributions in binary form must reproduce the above
+			copyright notice, this list of conditions and the following disclaimer
+			in the documentation and/or other materials provided with the
+			distribution.
+			   * Neither the name of Google Inc. nor the names of its
+			contributors may be used to endorse or promote products derived from
+			this software without specific prior written permission.
+			THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+			"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+			LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+			A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+			OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+			SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+			LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+			DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+			THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+			(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+			OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+		*/
+		// Build a zero value of the flag's Value type, and see if the
+		// result of calling its String method equals the value passed in.
+		// This works unless the Value type is itself an interface type.
+		typ := reflect.TypeOf(f)
+		var z reflect.Value
+		if typ.Kind() == reflect.Pointer {
+			z = reflect.New(typ.Elem())
+		} else {
+			z = reflect.Zero(typ)
+		}
+		return v == z.Interface().(flag.Value).String()
+	}
+	if x.value != nil {
+		// only return non-empty if not the same string as returned by the zero value
+		if s := x.value.String(); !isZeroValue(x.value, s) {
+			return s
+		}
+	}
+	return ``
+}
+
+func (x *flagValueHook) Serialize() string {
+	if value, ok := x.value.(Serializer); ok {
+		return value.Serialize()
+	}
+	return x.String()
+}
+
+// applyFlagValueHook wraps calls apply then wraps flags to call a hook function on update and after initial apply.
+func applyFlagValueHook(set *flag.FlagSet, apply func(set *flag.FlagSet) error, hook func()) error {
+	if apply == nil || set == nil || hook == nil {
+		panic(`invalid input`)
+	}
+	var tmp flag.FlagSet
+	if err := apply(&tmp); err != nil {
+		return err
+	}
+	tmp.VisitAll(func(f *flag.Flag) { set.Var(&flagValueHook{value: f.Value, hook: hook}, f.Name, f.Usage) })
+	hook()
+	return nil
+}
+
+// newSliceFlagValue is for implementing SliceFlagTarget.SetValue and SliceFlagTarget.SetDestination.
+// It's e.g. as part of StringSliceFlag.SetValue, using the factory NewStringSlice.
+func newSliceFlagValue[R any, S ~[]E, E any](factory func(defaults ...E) *R, defaults S) *R {
+	if defaults == nil {
+		return nil
+	}
+	return factory(defaults...)
+}
+
+// unwrapFlagValue strips any/all *flagValueHook wrappers.
+func unwrapFlagValue(v flag.Value) flag.Value {
+	for {
+		h, ok := v.(*flagValueHook)
+		if !ok {
+			return v
+		}
+		v = h.value
+	}
+}
+
+// NOTE: the methods below are in this file to make use of the build constraint
+
+func (f *Float64SliceFlag) SetValue(slice []float64) {
+	f.Value = newSliceFlagValue(NewFloat64Slice, slice)
+}
+
+func (f *Float64SliceFlag) SetDestination(slice []float64) {
+	f.Destination = newSliceFlagValue(NewFloat64Slice, slice)
+}
+
+func (f *Float64SliceFlag) GetDestination() []float64 {
+	if destination := f.Destination; destination != nil {
+		return destination.Value()
+	}
+	return nil
+}
+
+func (f *Int64SliceFlag) SetValue(slice []int64) {
+	f.Value = newSliceFlagValue(NewInt64Slice, slice)
+}
+
+func (f *Int64SliceFlag) SetDestination(slice []int64) {
+	f.Destination = newSliceFlagValue(NewInt64Slice, slice)
+}
+
+func (f *Int64SliceFlag) GetDestination() []int64 {
+	if destination := f.Destination; destination != nil {
+		return destination.Value()
+	}
+	return nil
+}
+
+func (f *IntSliceFlag) SetValue(slice []int) {
+	f.Value = newSliceFlagValue(NewIntSlice, slice)
+}
+
+func (f *IntSliceFlag) SetDestination(slice []int) {
+	f.Destination = newSliceFlagValue(NewIntSlice, slice)
+}
+
+func (f *IntSliceFlag) GetDestination() []int {
+	if destination := f.Destination; destination != nil {
+		return destination.Value()
+	}
+	return nil
+}
+
+func (f *StringSliceFlag) SetValue(slice []string) {
+	f.Value = newSliceFlagValue(NewStringSlice, slice)
+}
+
+func (f *StringSliceFlag) SetDestination(slice []string) {
+	f.Destination = newSliceFlagValue(NewStringSlice, slice)
+}
+
+func (f *StringSliceFlag) GetDestination() []string {
+	if destination := f.Destination; destination != nil {
+		return destination.Value()
+	}
+	return nil
+}

vendor/github.com/urfave/cli/v2/sort.go

@@ -0,0 +1,29 @@
+package cli
+
+import "unicode"
+
+// lexicographicLess compares strings alphabetically considering case.
+func lexicographicLess(i, j string) bool {
+	iRunes := []rune(i)
+	jRunes := []rune(j)
+
+	lenShared := len(iRunes)
+	if lenShared > len(jRunes) {
+		lenShared = len(jRunes)
+	}
+
+	for index := 0; index < lenShared; index++ {
+		ir := iRunes[index]
+		jr := jRunes[index]
+
+		if lir, ljr := unicode.ToLower(ir), unicode.ToLower(jr); lir != ljr {
+			return lir < ljr
+		}
+
+		if ir != jr {
+			return ir < jr
+		}
+	}
+
+	return i < j
+}

vendor/github.com/urfave/cli/v2/suggestions.go

@@ -0,0 +1,68 @@
+//go:build !urfave_cli_no_suggest
+// +build !urfave_cli_no_suggest
+
+package cli
+
+import (
+	"fmt"
+
+	"github.com/xrash/smetrics"
+)
+
+func init() {
+	SuggestFlag = suggestFlag
+	SuggestCommand = suggestCommand
+}
+
+func jaroWinkler(a, b string) float64 {
+	// magic values are from https://github.com/xrash/smetrics/blob/039620a656736e6ad994090895784a7af15e0b80/jaro-winkler.go#L8
+	const (
+		boostThreshold = 0.7
+		prefixSize     = 4
+	)
+	return smetrics.JaroWinkler(a, b, boostThreshold, prefixSize)
+}
+
+func suggestFlag(flags []Flag, provided string, hideHelp bool) string {
+	distance := 0.0
+	suggestion := ""
+
+	for _, flag := range flags {
+		flagNames := flag.Names()
+		if !hideHelp && HelpFlag != nil {
+			flagNames = append(flagNames, HelpFlag.Names()...)
+		}
+		for _, name := range flagNames {
+			newDistance := jaroWinkler(name, provided)
+			if newDistance > distance {
+				distance = newDistance
+				suggestion = name
+			}
+		}
+	}
+
+	if len(suggestion) == 1 {
+		suggestion = "-" + suggestion
+	} else if len(suggestion) > 1 {
+		suggestion = "--" + suggestion
+	}
+
+	return suggestion
+}
+
+// suggestCommand takes a list of commands and a provided string to suggest a
+// command name
+func suggestCommand(commands []*Command, provided string) (suggestion string) {
+	distance := 0.0
+	for _, command := range commands {
+		for _, name := range append(command.Names(), helpName, helpAlias) {
+			newDistance := jaroWinkler(name, provided)
+			if newDistance > distance {
+				distance = newDistance
+				suggestion = name
+			}
+		}
+	}
+
+	return fmt.Sprintf(SuggestDidYouMeanTemplate, suggestion)
+}

vendor/github.com/urfave/cli/v2/template.go

@@ -0,0 +1,143 @@
+package cli
+
+var helpNameTemplate = `{{$v := offset .HelpName 6}}{{wrap .HelpName 3}}{{if .Usage}} - {{wrap .Usage $v}}{{end}}`
+var usageTemplate = `{{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}}{{if .ArgsUsage}}{{.ArgsUsage}}{{else}}{{if .Args}} [arguments...]{{end}}{{end}}{{end}}`
+var descriptionTemplate = `{{wrap .Description 3}}`
+var authorsTemplate = `{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
+   {{range $index, $author := .Authors}}{{if $index}}
+   {{end}}{{$author}}{{end}}`
+var visibleCommandTemplate = `{{ $cv := offsetCommands .VisibleCommands 5}}{{range .VisibleCommands}}
+   {{$s := join .Names ", "}}{{$s}}{{ $sp := subtract $cv (offset $s 3) }}{{ indent $sp ""}}{{wrap .Usage $cv}}{{end}}`
+var visibleCommandCategoryTemplate = `{{range .VisibleCategories}}{{if .Name}}
+   {{.Name}}:{{range .VisibleCommands}}
+     {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{template "visibleCommandTemplate" .}}{{end}}{{end}}`
+var visibleFlagCategoryTemplate = `{{range .VisibleFlagCategories}}
+   {{if .Name}}{{.Name}}
+
+   {{end}}{{$flglen := len .Flags}}{{range $i, $e := .Flags}}{{if eq (subtract $flglen $i) 1}}{{$e}}
+{{else}}{{$e}}
+   {{end}}{{end}}{{end}}`
+
+var visibleFlagTemplate = `{{range $i, $e := .VisibleFlags}}
+   {{wrap $e.String 6}}{{end}}`
+
+var versionTemplate = `{{if .Version}}{{if not .HideVersion}}
+
+VERSION:
+   {{.Version}}{{end}}{{end}}`
+
+var copyrightTemplate = `{{wrap .Copyright 3}}`
+
+// AppHelpTemplate is the text template for the Default help topic.
+// cli.go uses text/template to render templates. You can
+// render custom help text by setting this variable.
+var AppHelpTemplate = `NAME:
+   {{template "helpNameTemplate" .}}
+
+USAGE:
+   {{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}{{if .Args}}[arguments...]{{end}}{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
+
+VERSION:
+   {{.Version}}{{end}}{{end}}{{if .Description}}
+
+DESCRIPTION:
+   {{template "descriptionTemplate" .}}{{end}}
+{{- if len .Authors}}
+
+AUTHOR{{template "authorsTemplate" .}}{{end}}{{if .VisibleCommands}}
+
+COMMANDS:{{template "visibleCommandCategoryTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
+
+GLOBAL OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
+
+GLOBAL OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}{{if .Copyright}}
+
+COPYRIGHT:
+   {{template "copyrightTemplate" .}}{{end}}
+`
+
+// CommandHelpTemplate is the text template for the command help topic.
+// cli.go uses text/template to render templates. You can
+// render custom help text by setting this variable.
+var CommandHelpTemplate = `NAME:
+   {{template "helpNameTemplate" .}}
+
+USAGE:
+   {{template "usageTemplate" .}}{{if .Category}}
+
+CATEGORY:
+   {{.Category}}{{end}}{{if .Description}}
+
+DESCRIPTION:
+   {{template "descriptionTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
+
+OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
+
+OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
+`
+
+// SubcommandHelpTemplate is the text template for the subcommand help topic.
+// cli.go uses text/template to render templates. You can
+// render custom help text by setting this variable.
+var SubcommandHelpTemplate = `NAME:
+   {{template "helpNameTemplate" .}}
+
+USAGE:
+   {{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}} {{if .VisibleFlags}}command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}{{if .Args}}[arguments...]{{end}}{{end}}{{end}}{{if .Description}}
+
+DESCRIPTION:
+   {{template "descriptionTemplate" .}}{{end}}{{if .VisibleCommands}}
+
+COMMANDS:{{template "visibleCommandCategoryTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
+
+OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
+
+OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
+`
+
+var MarkdownDocTemplate = `{{if gt .SectionNum 0}}% {{ .App.Name }} {{ .SectionNum }}
+
+{{end}}# NAME
+
+{{ .App.Name }}{{ if .App.Usage }} - {{ .App.Usage }}{{ end }}
+
+# SYNOPSIS
+
+{{ .App.Name }}
+{{ if .SynopsisArgs }}
+` + "```" + `
+{{ range $v := .SynopsisArgs }}{{ $v }}{{ end }}` + "```" + `
+{{ end }}{{ if .App.Description }}
+# DESCRIPTION
+
+{{ .App.Description }}
+{{ end }}
+**Usage**:
+
+` + "```" + `{{ if .App.UsageText }}
+{{ .App.UsageText }}
+{{ else }}
+{{ .App.Name }} [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
+{{ end }}` + "```" + `
+{{ if .GlobalArgs }}
+# GLOBAL OPTIONS
+{{ range $v := .GlobalArgs }}
+{{ $v }}{{ end }}
+{{ end }}{{ if .Commands }}
+# COMMANDS
+{{ range $v := .Commands }}
+{{ $v }}{{ end }}{{ end }}`
+
+var FishCompletionTemplate = `# {{ .App.Name }} fish shell completion
+
+function __fish_{{ .App.Name }}_no_subcommand --description 'Test if there has been any subcommand yet'
+    for i in (commandline -opc)
+        if contains -- $i{{ range $v := .AllCommands }} {{ $v }}{{ end }}
+            return 1
+        end
+    end
+    return 0
+end
+
+{{ range $v := .Completions }}{{ $v }}
+{{ end }}`

vendor/github.com/urfave/cli/v2/zz_generated.flags.go

@@ -0,0 +1,865 @@
+// WARNING: this file is generated. DO NOT EDIT
+
+package cli
+
+import "time"
+
+// Float64SliceFlag is a flag with type *Float64Slice
+type Float64SliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *Float64Slice
+	Destination *Float64Slice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *Float64Slice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	Action func(*Context, []float64) error
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Float64SliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Float64SliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Float64SliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Float64SliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// GenericFlag is a flag with type Generic
+type GenericFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       Generic
+	Destination Generic
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    Generic
+	defaultValueSet bool
+
+	TakesFile bool
+
+	Action func(*Context, interface{}) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *GenericFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *GenericFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *GenericFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *GenericFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *GenericFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// Int64SliceFlag is a flag with type *Int64Slice
+type Int64SliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *Int64Slice
+	Destination *Int64Slice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *Int64Slice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	Action func(*Context, []int64) error
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Int64SliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Int64SliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Int64SliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Int64SliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// IntSliceFlag is a flag with type *IntSlice
+type IntSliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *IntSlice
+	Destination *IntSlice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *IntSlice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	Action func(*Context, []int) error
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *IntSliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *IntSliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *IntSliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *IntSliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// PathFlag is a flag with type Path
+type PathFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       Path
+	Destination *Path
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    Path
+	defaultValueSet bool
+
+	TakesFile bool
+
+	Action func(*Context, Path) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *PathFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *PathFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *PathFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *PathFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *PathFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// StringSliceFlag is a flag with type *StringSlice
+type StringSliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *StringSlice
+	Destination *StringSlice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *StringSlice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	TakesFile bool
+
+	Action func(*Context, []string) error
+
+	KeepSpace bool
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *StringSliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *StringSliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *StringSliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *StringSliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// TimestampFlag is a flag with type *Timestamp
+type TimestampFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *Timestamp
+	Destination *Timestamp
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *Timestamp
+	defaultValueSet bool
+
+	Layout string
+
+	Timezone *time.Location
+
+	Action func(*Context, *time.Time) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *TimestampFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *TimestampFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *TimestampFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *TimestampFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *TimestampFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// Uint64SliceFlag is a flag with type *Uint64Slice
+type Uint64SliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *Uint64Slice
+	Destination *Uint64Slice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *Uint64Slice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	Action func(*Context, []uint64) error
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Uint64SliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Uint64SliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Uint64SliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Uint64SliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// UintSliceFlag is a flag with type *UintSlice
+type UintSliceFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       *UintSlice
+	Destination *UintSlice
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    *UintSlice
+	defaultValueSet bool
+
+	separator separatorSpec
+
+	Action func(*Context, []uint) error
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *UintSliceFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *UintSliceFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *UintSliceFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *UintSliceFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// BoolFlag is a flag with type bool
+type BoolFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       bool
+	Destination *bool
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    bool
+	defaultValueSet bool
+
+	Count *int
+
+	DisableDefaultText bool
+
+	Action func(*Context, bool) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *BoolFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *BoolFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *BoolFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *BoolFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *BoolFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// Float64Flag is a flag with type float64
+type Float64Flag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       float64
+	Destination *float64
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    float64
+	defaultValueSet bool
+
+	Action func(*Context, float64) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *Float64Flag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Float64Flag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Float64Flag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Float64Flag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Float64Flag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// IntFlag is a flag with type int
+type IntFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       int
+	Destination *int
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    int
+	defaultValueSet bool
+
+	Base int
+
+	Action func(*Context, int) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *IntFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *IntFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *IntFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *IntFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *IntFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// Int64Flag is a flag with type int64
+type Int64Flag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       int64
+	Destination *int64
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    int64
+	defaultValueSet bool
+
+	Base int
+
+	Action func(*Context, int64) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *Int64Flag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Int64Flag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Int64Flag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Int64Flag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Int64Flag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// StringFlag is a flag with type string
+type StringFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       string
+	Destination *string
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    string
+	defaultValueSet bool
+
+	TakesFile bool
+
+	Action func(*Context, string) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *StringFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *StringFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *StringFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *StringFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *StringFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// DurationFlag is a flag with type time.Duration
+type DurationFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       time.Duration
+	Destination *time.Duration
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    time.Duration
+	defaultValueSet bool
+
+	Action func(*Context, time.Duration) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *DurationFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *DurationFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *DurationFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *DurationFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *DurationFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// UintFlag is a flag with type uint
+type UintFlag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       uint
+	Destination *uint
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    uint
+	defaultValueSet bool
+
+	Base int
+
+	Action func(*Context, uint) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *UintFlag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *UintFlag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *UintFlag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *UintFlag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *UintFlag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// Uint64Flag is a flag with type uint64
+type Uint64Flag struct {
+	Name string
+
+	Category    string
+	DefaultText string
+	FilePath    string
+	Usage       string
+
+	Required   bool
+	Hidden     bool
+	HasBeenSet bool
+
+	Value       uint64
+	Destination *uint64
+
+	Aliases []string
+	EnvVars []string
+
+	defaultValue    uint64
+	defaultValueSet bool
+
+	Base int
+
+	Action func(*Context, uint64) error
+}
+
+// String returns a readable representation of this value (for usage defaults)
+func (f *Uint64Flag) String() string {
+	return FlagStringer(f)
+}
+
+// IsSet returns whether or not the flag has been set through env or file
+func (f *Uint64Flag) IsSet() bool {
+	return f.HasBeenSet
+}
+
+// Names returns the names of the flag
+func (f *Uint64Flag) Names() []string {
+	return FlagNames(f.Name, f.Aliases)
+}
+
+// IsRequired returns whether or not the flag is required
+func (f *Uint64Flag) IsRequired() bool {
+	return f.Required
+}
+
+// IsVisible returns true if the flag is not hidden, otherwise false
+func (f *Uint64Flag) IsVisible() bool {
+	return !f.Hidden
+}
+
+// vim:ro