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This commit is contained in:
Ludovic Fernandez 2018-01-31 19:10:04 +01:00 • committed by Traefiker
parent c944d203fb
commit 58d6681824
83 changed files with 622 additions and 8611 deletions
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21
vendor/github.com/codegangsta/cli/LICENSE generated vendored
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@ -1,21 +0,0 @@
MIT License
Copyright (c) 2016 Jeremy Saenz & Contributors
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.

497
vendor/github.com/codegangsta/cli/app.go generated vendored
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@ -1,497 +0,0 @@
package cli
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"sort"
"time"
)
var (
changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md"
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", 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)
)
// 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
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// Description of the program
Description 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
HideHelp bool
// Boolean to hide built-in version flag and the VERSION section of help
HideVersion bool
// Populate on app startup, only gettable through method Categories()
categories CommandCategories
// An action to execute when the bash-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
// Expects a `cli.ActionFunc` but will accept the *deprecated* signature of `func(*cli.Context) {}`
// *Note*: support for the deprecated `Action` signature will be removed in a future version
Action interface{}
// Execute this function if the proper command cannot be found
CommandNotFound CommandNotFoundFunc
// Execute this function if an usage error occurs
OnUsageError OnUsageErrorFunc
// Compilation date
Compiled time.Time
// List of all authors who contributed
Authors []Author
// Copyright of the binary if any
Copyright string
// Name of Author (Note: Use App.Authors, this is deprecated)
Author string
// Email of Author (Note: Use App.Authors, this is deprecated)
Email string
// Writer writer to write output to
Writer io.Writer
// ErrWriter writes error output
ErrWriter io.Writer
// 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
didSetup bool
}
// 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]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
Version: "0.0.0",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Writer: os.Stdout,
}
}
// 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.Author != "" || a.Email != "" {
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
if !a.HideVersion {
a.appendFlag(VersionFlag)
}
a.categories = CommandCategories{}
for _, command := range a.Commands {
a.categories = a.categories.AddCommand(command.Category, command)
}
sort.Sort(a.categories)
if a.Metadata == nil {
a.Metadata = make(map[string]interface{})
}
if a.Writer == nil {
a.Writer = os.Stdout
}
}
// 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) {
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)
// parse flags
set, err := flagSet(a.Name, a.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
err = set.Parse(arguments[1:])
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, nil)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
ShowAppHelp(context)
return nerr
}
context.shellComplete = shellComplete
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err := a.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
ShowAppHelp(context)
return err
}
if !a.HideHelp && checkHelp(context) {
ShowAppHelp(context)
return nil
}
if !a.HideVersion && checkVersion(context) {
ShowVersion(context)
return nil
}
if a.After != nil {
defer func() {
if afterErr := a.After(context); afterErr != nil {
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
ShowAppHelp(context)
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
if a.Action == nil {
a.Action = helpCommand.Action
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// 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 eror
// code in the cli.ExitCoder
func (a *App) RunAndExitOnError() {
if err := a.Run(os.Args); err != nil {
fmt.Fprintln(a.errWriter(), err)
OsExiter(1)
}
}
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
// generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
// append help to commands
if len(a.Commands) > 0 {
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
// parse flags
set, err := flagSet(a.Name, a.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
err = set.Parse(ctx.Args().Tail())
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, ctx)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
fmt.Fprintln(a.Writer)
if len(a.Commands) > 0 {
ShowSubcommandHelp(context)
} else {
ShowCommandHelp(ctx, context.Args().First())
}
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err = a.OnUsageError(context, err, true)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
ShowSubcommandHelp(context)
return err
}
if len(a.Commands) > 0 {
if checkSubcommandHelp(context) {
return nil
}
} else {
if checkCommandHelp(ctx, context.Args().First()) {
return nil
}
}
if a.After != nil {
defer func() {
afterErr := a.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// 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
}
// Categories returns a slice containing all the categories with the commands they contain
func (a *App) Categories() CommandCategories {
return a.categories
}
// VisibleCategories returns a slice of categories and commands that are
// Hidden=false
func (a *App) VisibleCategories() []*CommandCategory {
ret := []*CommandCategory{}
for _, category := range a.categories {
if visible := func() *CommandCategory {
for _, command := range category.Commands {
if !command.Hidden {
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 {
ret := []Command{}
for _, command := range a.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (a *App) VisibleFlags() []Flag {
return visibleFlags(a.Flags)
}
func (a *App) hasFlag(flag Flag) bool {
for _, f := range a.Flags {
if flag == f {
return true
}
}
return false
}
func (a *App) errWriter() io.Writer {
// When the app ErrWriter is nil use the package level one.
if a.ErrWriter == nil {
return ErrWriter
}
return a.ErrWriter
}
func (a *App) appendFlag(flag Flag) {
if !a.hasFlag(flag) {
a.Flags = append(a.Flags, flag)
}
}
// 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{}, context *Context) (err error) {
if a, ok := action.(ActionFunc); ok {
return a(context)
} else if a, ok := action.(func(*Context) error); ok {
return a(context)
} else if a, ok := action.(func(*Context)); ok { // deprecated function signature
a(context)
return nil
} else {
return errInvalidActionType
}
}

44
vendor/github.com/codegangsta/cli/category.go generated vendored
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@ -1,44 +0,0 @@
package cli
// CommandCategories is a slice of *CommandCategory.
type CommandCategories []*CommandCategory
// CommandCategory is a category containing commands.
type CommandCategory struct {
Name string
Commands Commands
}
func (c CommandCategories) Less(i, j int) bool {
return 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]
}
// AddCommand adds a command to a category.
func (c CommandCategories) AddCommand(category string, command Command) CommandCategories {
for _, commandCategory := range c {
if commandCategory.Name == category {
commandCategory.Commands = append(commandCategory.Commands, command)
return c
}
}
return append(c, &CommandCategory{Name: category, Commands: []Command{command}})
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (c *CommandCategory) VisibleCommands() []Command {
ret := []Command{}
for _, command := range c.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}

22
vendor/github.com/codegangsta/cli/cli.go generated vendored
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// 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.NewApp().Run(os.Args)
// }
//
// Of course this application does not do much, so let's make this an actual application:
// func main() {
// app := cli.NewApp()
// app.Name = "greet"
// app.Usage = "say a greeting"
// app.Action = func(c *cli.Context) error {
// println("Greetings")
// return nil
// }
//
// app.Run(os.Args)
// }
package cli
//go:generate python ./generate-flag-types cli -i flag-types.json -o flag_generated.go

304
vendor/github.com/codegangsta/cli/command.go generated vendored
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@ -1,304 +0,0 @@
package cli
import (
"fmt"
"io/ioutil"
"sort"
"strings"
)
// Command is a subcommand for a cli.App.
type Command struct {
// The name of the command
Name string
// short name of the command. Typically one character (deprecated, use `Aliases`)
ShortName 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
// 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 interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if a usage error occurs.
OnUsageError OnUsageErrorFunc
// List of child commands
Subcommands Commands
// List of flags to parse
Flags []Flag
// Treat all flags as normal arguments if true
SkipFlagParsing bool
// Skip argument reordering which attempts to move flags before arguments,
// but only works if all flags appear after all arguments. This behavior was
// removed n version 2 since it only works under specific conditions so we
// backport here by exposing it as an option for compatibility.
SkipArgReorder bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide this command from help or completion
Hidden 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
}
type CommandsByName []Command
func (c CommandsByName) Len() int {
return len(c)
}
func (c CommandsByName) Less(i, j int) bool {
return 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, " ")
}
// Commands is a slice of Command
type Commands []Command
// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
func (c Command) Run(ctx *Context) (err error) {
if len(c.Subcommands) > 0 {
return c.startApp(ctx)
}
if !c.HideHelp && (HelpFlag != BoolFlag{}) {
// append help to flags
c.Flags = append(
c.Flags,
HelpFlag,
)
}
set, err := flagSet(c.Name, c.Flags)
if err != nil {
return err
}
set.SetOutput(ioutil.Discard)
if c.SkipFlagParsing {
err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...))
} else if !c.SkipArgReorder {
firstFlagIndex := -1
terminatorIndex := -1
for index, arg := range ctx.Args() {
if arg == "--" {
terminatorIndex = index
break
} else if arg == "-" {
// Do nothing. A dash alone is not really a flag.
continue
} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
firstFlagIndex = index
}
}
if firstFlagIndex > -1 {
args := ctx.Args()
regularArgs := make([]string, len(args[1:firstFlagIndex]))
copy(regularArgs, args[1:firstFlagIndex])
var flagArgs []string
if terminatorIndex > -1 {
flagArgs = args[firstFlagIndex:terminatorIndex]
regularArgs = append(regularArgs, args[terminatorIndex:]...)
} else {
flagArgs = args[firstFlagIndex:]
}
err = set.Parse(append(flagArgs, regularArgs...))
} else {
err = set.Parse(ctx.Args().Tail())
}
} else {
err = set.Parse(ctx.Args().Tail())
}
nerr := normalizeFlags(c.Flags, set)
if nerr != nil {
fmt.Fprintln(ctx.App.Writer, nerr)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return nerr
}
context := NewContext(ctx.App, set, ctx)
context.Command = c
if checkCommandCompletions(context, c.Name) {
return nil
}
if err != nil {
if c.OnUsageError != nil {
err := c.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error())
fmt.Fprintln(context.App.Writer)
ShowCommandHelp(context, c.Name)
return err
}
if checkCommandHelp(context, c.Name) {
return nil
}
if c.After != nil {
defer func() {
afterErr := c.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if c.Before != nil {
err = c.Before(context)
if err != nil {
ShowCommandHelp(context, c.Name)
HandleExitCoder(err)
return err
}
}
if c.Action == nil {
c.Action = helpSubcommand.Action
}
err = HandleAction(c.Action, context)
if err != nil {
HandleExitCoder(err)
}
return err
}
// Names returns the names including short names and aliases.
func (c Command) Names() []string {
names := []string{c.Name}
if c.ShortName != "" {
names = append(names, c.ShortName)
}
return append(names, c.Aliases...)
}
// HasName returns true if Command.Name or Command.ShortName matches given name
func (c Command) HasName(name string) bool {
for _, n := range c.Names() {
if n == name {
return true
}
}
return false
}
func (c Command) startApp(ctx *Context) error {
app := NewApp()
app.Metadata = ctx.App.Metadata
// set the name and usage
app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
if c.HelpName == "" {
app.HelpName = c.HelpName
} else {
app.HelpName = app.Name
}
app.Usage = c.Usage
app.Description = c.Description
app.ArgsUsage = c.ArgsUsage
// set CommandNotFound
app.CommandNotFound = ctx.App.CommandNotFound
app.CustomAppHelpTemplate = c.CustomHelpTemplate
// set the flags and commands
app.Commands = c.Subcommands
app.Flags = c.Flags
app.HideHelp = c.HideHelp
app.Version = ctx.App.Version
app.HideVersion = ctx.App.HideVersion
app.Compiled = ctx.App.Compiled
app.Author = ctx.App.Author
app.Email = ctx.App.Email
app.Writer = ctx.App.Writer
app.ErrWriter = ctx.App.ErrWriter
app.categories = CommandCategories{}
for _, command := range c.Subcommands {
app.categories = app.categories.AddCommand(command.Category, command)
}
sort.Sort(app.categories)
// bash completion
app.EnableBashCompletion = ctx.App.EnableBashCompletion
if c.BashComplete != nil {
app.BashComplete = c.BashComplete
}
// set the actions
app.Before = c.Before
app.After = c.After
if c.Action != nil {
app.Action = c.Action
} else {
app.Action = helpSubcommand.Action
}
app.OnUsageError = c.OnUsageError
for index, cc := range app.Commands {
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
}
return app.RunAsSubcommand(ctx)
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (c Command) VisibleFlags() []Flag {
return visibleFlags(c.Flags)
}

278
vendor/github.com/codegangsta/cli/context.go generated vendored
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@ -1,278 +0,0 @@
package cli
import (
"errors"
"flag"
"reflect"
"strings"
"syscall"
)
// 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 {
App *App
Command Command
shellComplete bool
flagSet *flag.FlagSet
setFlags map[string]bool
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.shellComplete = parentCtx.shellComplete
}
return c
}
// NumFlags returns the number of flags set
func (c *Context) NumFlags() int {
return c.flagSet.NFlag()
}
// Set sets a context flag to a value.
func (c *Context) Set(name, value string) error {
c.setFlags = nil
return c.flagSet.Set(name, value)
}
// GlobalSet sets a context flag to a value on the global flagset
func (c *Context) GlobalSet(name, value string) error {
globalContext(c).setFlags = nil
return globalContext(c).flagSet.Set(name, value)
}
// IsSet determines if the flag was actually set
func (c *Context) IsSet(name string) bool {
if c.setFlags == nil {
c.setFlags = make(map[string]bool)
c.flagSet.Visit(func(f *flag.Flag) {
c.setFlags[f.Name] = true
})
c.flagSet.VisitAll(func(f *flag.Flag) {
if _, ok := c.setFlags[f.Name]; ok {
return
}
c.setFlags[f.Name] = false
})
// XXX hack to support IsSet for flags with EnvVar
//
// There isn't an easy way to do this with the current implementation since
// whether a flag was set via an environment variable is very difficult to
// determine here. Instead, we intend to introduce a backwards incompatible
// change in version 2 to add `IsSet` to the Flag interface to push the
// responsibility closer to where the information required to determine
// whether a flag is set by non-standard means such as environment
// variables is avaliable.
//
// See https://github.com/urfave/cli/issues/294 for additional discussion
flags := c.Command.Flags
if c.Command.Name == "" { // cannot == Command{} since it contains slice types
if c.App != nil {
flags = c.App.Flags
}
}
for _, f := range flags {
eachName(f.GetName(), func(name string) {
if isSet, ok := c.setFlags[name]; isSet || !ok {
return
}
val := reflect.ValueOf(f)
if val.Kind() == reflect.Ptr {
val = val.Elem()
}
envVarValue := val.FieldByName("EnvVar")
if !envVarValue.IsValid() {
return
}
eachName(envVarValue.String(), func(envVar string) {
envVar = strings.TrimSpace(envVar)
if _, ok := syscall.Getenv(envVar); ok {
c.setFlags[name] = true
return
}
})
})
}
}
return c.setFlags[name]
}
// GlobalIsSet determines if the global flag was actually set
func (c *Context) GlobalIsSet(name string) bool {
ctx := c
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if ctx.IsSet(name) {
return true
}
}
return false
}
// FlagNames returns a slice of flag names used in this context.
func (c *Context) FlagNames() (names []string) {
for _, flag := range c.Command.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" {
continue
}
names = append(names, name)
}
return
}
// GlobalFlagNames returns a slice of global flag names used by the app.
func (c *Context) GlobalFlagNames() (names []string) {
for _, flag := range c.App.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" || name == "version" {
continue
}
names = append(names, name)
}
return
}
// Parent returns the parent context, if any
func (c *Context) Parent() *Context {
return c.parentContext
}
// value returns the value of the flag coressponding to `name`
func (c *Context) value(name string) interface{} {
return c.flagSet.Lookup(name).Value.(flag.Getter).Get()
}
// Args contains apps console arguments
type Args []string
// Args returns the command line arguments associated with the context.
func (c *Context) Args() Args {
args := Args(c.flagSet.Args())
return args
}
// NArg returns the number of the command line arguments.
func (c *Context) NArg() int {
return len(c.Args())
}
// Get returns the nth argument, or else a blank string
func (a Args) Get(n int) string {
if len(a) > n {
return a[n]
}
return ""
}
// First returns the first argument, or else a blank string
func (a Args) First() string {
return a.Get(0)
}
// Tail returns the rest of the arguments (not the first one)
// or else an empty string slice
func (a Args) Tail() []string {
if len(a) >= 2 {
return []string(a)[1:]
}
return []string{}
}
// Present checks if there are any arguments present
func (a Args) Present() bool {
return len(a) != 0
}
// Swap swaps arguments at the given indexes
func (a Args) Swap(from, to int) error {
if from >= len(a) || to >= len(a) {
return errors.New("index out of range")
}
a[from], a[to] = a[to], a[from]
return nil
}
func globalContext(ctx *Context) *Context {
if ctx == nil {
return nil
}
for {
if ctx.parentContext == nil {
return ctx
}
ctx = ctx.parentContext
}
}
func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet {
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if f := ctx.flagSet.Lookup(name); f != nil {
return ctx.flagSet
}
}
return nil
}
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
switch ff.Value.(type) {
case *StringSlice:
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 := strings.Split(f.GetName(), ",")
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
}

115
vendor/github.com/codegangsta/cli/errors.go generated vendored
View file

@ -1,115 +0,0 @@
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 struct {
Errors []error
}
// NewMultiError creates a new MultiError. Pass in one or more errors.
func NewMultiError(err ...error) MultiError {
return MultiError{Errors: err}
}
// Error implements the error interface.
func (m MultiError) Error() string {
errs := make([]string, len(m.Errors))
for i, err := range m.Errors {
errs[i] = err.Error()
}
return strings.Join(errs, "\n")
}
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
}
// ExitError fulfills both the builtin `error` interface and `ExitCoder`
type ExitError struct {
exitCode int
message interface{}
}
// NewExitError makes a new *ExitError
func NewExitError(message interface{}, exitCode int) *ExitError {
return &ExitError{
exitCode: exitCode,
message: message,
}
}
// Error returns the string message, fulfilling the interface required by
// `error`
func (ee *ExitError) Error() string {
return fmt.Sprintf("%v", ee.message)
}
// ExitCode returns the exit code, fulfilling the interface required by
// `ExitCoder`
func (ee *ExitError) ExitCode() int {
return ee.exitCode
}
// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
// given exit code. If the given error is a MultiError, then this func is
// called on all members of the Errors slice and calls OsExiter with the last exit code.
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 {
fmt.Fprintln(ErrWriter, merr)
if exitErr, ok := merr.(ExitCoder); ok {
code = exitErr.ExitCode()
}
}
}
return code
}

799
vendor/github.com/codegangsta/cli/flag.go generated vendored
View file

@ -1,799 +0,0 @@
package cli
import (
"flag"
"fmt"
"reflect"
"runtime"
"strconv"
"strings"
"syscall"
"time"
)
const defaultPlaceholder = "value"
// 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, v",
Usage: "print the version",
}
// HelpFlag prints the help for all commands and subcommands
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
// unless HideHelp is set to true)
var HelpFlag Flag = BoolFlag{
Name: "help, h",
Usage: "show help",
}
// FlagStringer converts a flag definition to a string. This is used by help
// to display a flag.
var FlagStringer FlagStringFunc = stringifyFlag
// 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 {
return f[i].GetName() < f[j].GetName()
}
func (f FlagsByName) Swap(i, j int) {
f[i], f[j] = f[j], f[i]
}
// 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)
GetName() string
}
// errorableFlag is an interface that allows us to return errors during apply
// it allows flags defined in this library to return errors in a fashion backwards compatible
// TODO remove in v2 and modify the existing Flag interface to return errors
type errorableFlag interface {
Flag
ApplyWithError(*flag.FlagSet) error
}
func flagSet(name string, flags []Flag) (*flag.FlagSet, error) {
set := flag.NewFlagSet(name, flag.ContinueOnError)
for _, f := range flags {
//TODO remove in v2 when errorableFlag is removed
if ef, ok := f.(errorableFlag); ok {
if err := ef.ApplyWithError(set); err != nil {
return nil, err
}
} else {
f.Apply(set)
}
}
return set, nil
}
func eachName(longName string, fn func(string)) {
parts := strings.Split(longName, ",")
for _, name := range parts {
name = strings.Trim(name, " ")
fn(name)
}
}
// Generic is a generic parseable type identified by a specific flag
type Generic interface {
Set(value string) error
String() string
}
// Apply takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
// Ignores parsing errors
func (f GenericFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError 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) ApplyWithError(set *flag.FlagSet) error {
val := f.Value
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if err := val.Set(envVal); err != nil {
return fmt.Errorf("could not parse %s as value for flag %s: %s", envVal, f.Name, err)
}
break
}
}
}
eachName(f.Name, func(name string) {
set.Var(f.Value, name, f.Usage)
})
return nil
}
// StringSlice is an opaque type for []string to satisfy flag.Value and flag.Getter
type StringSlice []string
// Set appends the string value to the list of values
func (f *StringSlice) Set(value string) error {
*f = append(*f, value)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *StringSlice) String() string {
return fmt.Sprintf("%s", *f)
}
// Value returns the slice of strings set by this flag
func (f *StringSlice) Value() []string {
return *f
}
// Get returns the slice of strings set by this flag
func (f *StringSlice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f StringSliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &StringSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as string value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &StringSlice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// IntSlice is an opaque type for []int to satisfy flag.Value and flag.Getter
type IntSlice []int
// Set parses the value into an integer and appends it to the list of values
func (f *IntSlice) Set(value string) error {
tmp, err := strconv.Atoi(value)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *IntSlice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *IntSlice) Value() []int {
return *f
}
// Get returns the slice of ints set by this flag
func (f *IntSlice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f IntSliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &IntSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as int slice value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &IntSlice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// Int64Slice is an opaque type for []int to satisfy flag.Value and flag.Getter
type Int64Slice []int64
// Set parses the value into an integer and appends it to the list of values
func (f *Int64Slice) Set(value string) error {
tmp, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *Int64Slice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *Int64Slice) Value() []int64 {
return *f
}
// Get returns the slice of ints set by this flag
func (f *Int64Slice) Get() interface{} {
return *f
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Int64SliceFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
newVal := &Int64Slice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
if err := newVal.Set(s); err != nil {
return fmt.Errorf("could not parse %s as int64 slice value for flag %s: %s", envVal, f.Name, err)
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &Int64Slice{}
}
set.Var(f.Value, name, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f BoolFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f BoolFlag) ApplyWithError(set *flag.FlagSet) error {
val := false
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if envVal == "" {
val = false
break
}
envValBool, err := strconv.ParseBool(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
}
val = envValBool
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f BoolTFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f BoolTFlag) ApplyWithError(set *flag.FlagSet) error {
val := true
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
if envVal == "" {
val = false
break
}
envValBool, err := strconv.ParseBool(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as bool value for flag %s: %s", envVal, f.Name, err)
}
val = envValBool
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f StringFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f StringFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
f.Value = envVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
return
}
set.String(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f IntFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f IntFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
}
f.Value = int(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Int(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Int64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Int64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
}
f.Value = envValInt
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Int64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Int64(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f UintFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f UintFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as uint value for flag %s: %s", envVal, f.Name, err)
}
f.Value = uint(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.UintVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Uint64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Uint64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %s as uint64 value for flag %s: %s", envVal, f.Name, err)
}
f.Value = uint64(envValInt)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Uint64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint64(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f DurationFlag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f DurationFlag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValDuration, err := time.ParseDuration(envVal)
if err != nil {
return fmt.Errorf("could not parse %s as duration for flag %s: %s", envVal, f.Name, err)
}
f.Value = envValDuration
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Duration(name, f.Value, f.Usage)
})
return nil
}
// Apply populates the flag given the flag set and environment
// Ignores errors
func (f Float64Flag) Apply(set *flag.FlagSet) {
f.ApplyWithError(set)
}
// ApplyWithError populates the flag given the flag set and environment
func (f Float64Flag) ApplyWithError(set *flag.FlagSet) error {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal, ok := syscall.Getenv(envVar); ok {
envValFloat, err := strconv.ParseFloat(envVal, 10)
if err != nil {
return fmt.Errorf("could not parse %s as float64 value for flag %s: %s", envVal, f.Name, err)
}
f.Value = float64(envValFloat)
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Float64(name, f.Value, f.Usage)
})
return nil
}
func visibleFlags(fl []Flag) []Flag {
visible := []Flag{}
for _, flag := range fl {
field := flagValue(flag).FieldByName("Hidden")
if !field.IsValid() || !field.Bool() {
visible = append(visible, flag)
}
}
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(fullName, placeholder string) string {
var prefixed string
parts := strings.Split(fullName, ",")
for i, name := range parts {
name = strings.Trim(name, " ")
prefixed += prefixFor(name) + name
if placeholder != "" {
prefixed += " " + placeholder
}
if i < len(parts)-1 {
prefixed += ", "
}
}
return prefixed
}
func withEnvHint(envVar, str string) string {
envText := ""
if envVar != "" {
prefix := "$"
suffix := ""
sep := ", $"
if runtime.GOOS == "windows" {
prefix = "%"
suffix = "%"
sep = "%, %"
}
envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(strings.Split(envVar, ","), sep), suffix)
}
return str + envText
}
func flagValue(f Flag) reflect.Value {
fv := reflect.ValueOf(f)
for fv.Kind() == reflect.Ptr {
fv = reflect.Indirect(fv)
}
return fv
}
func stringifyFlag(f Flag) string {
fv := flagValue(f)
switch f.(type) {
case IntSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyIntSliceFlag(f.(IntSliceFlag)))
case Int64SliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyInt64SliceFlag(f.(Int64SliceFlag)))
case StringSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyStringSliceFlag(f.(StringSliceFlag)))
}
placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String())
needsPlaceholder := false
defaultValueString := ""
if val := fv.FieldByName("Value"); val.IsValid() {
needsPlaceholder = true
defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface())
if val.Kind() == reflect.String && val.String() != "" {
defaultValueString = fmt.Sprintf(" (default: %q)", val.String())
}
}
if defaultValueString == " (default: )" {
defaultValueString = ""
}
if needsPlaceholder && placeholder == "" {
placeholder = defaultPlaceholder
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultValueString))
return withEnvHint(fv.FieldByName("EnvVar").String(),
fmt.Sprintf("%s\t%s", prefixedNames(fv.FieldByName("Name").String(), placeholder), usageWithDefault))
}
func stringifyIntSliceFlag(f IntSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyInt64SliceFlag(f Int64SliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyStringSliceFlag(f StringSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, s := range f.Value.Value() {
if len(s) > 0 {
defaultVals = append(defaultVals, fmt.Sprintf("%q", s))
}
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifySliceFlag(usage, name string, defaultVals []string) string {
placeholder, usage := unquoteUsage(usage)
if placeholder == "" {
placeholder = defaultPlaceholder
}
defaultVal := ""
if len(defaultVals) > 0 {
defaultVal = fmt.Sprintf(" (default: %s)", strings.Join(defaultVals, ", "))
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal))
return fmt.Sprintf("%s\t%s", prefixedNames(name, placeholder), usageWithDefault)
}

627
vendor/github.com/codegangsta/cli/flag_generated.go generated vendored
View file

@ -1,627 +0,0 @@
package cli
import (
"flag"
"strconv"
"time"
)
// WARNING: This file is generated!
// BoolFlag is a flag with type bool
type BoolFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolFlag) GetName() string {
return f.Name
}
// Bool looks up the value of a local BoolFlag, returns
// false if not found
func (c *Context) Bool(name string) bool {
return lookupBool(name, c.flagSet)
}
// GlobalBool looks up the value of a global BoolFlag, returns
// false if not found
func (c *Context) GlobalBool(name string) bool {
if fs := lookupGlobalFlagSet(name, c); 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
}
// BoolTFlag is a flag with type bool that is true by default
type BoolTFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolTFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolTFlag) GetName() string {
return f.Name
}
// BoolT looks up the value of a local BoolTFlag, returns
// false if not found
func (c *Context) BoolT(name string) bool {
return lookupBoolT(name, c.flagSet)
}
// GlobalBoolT looks up the value of a global BoolTFlag, returns
// false if not found
func (c *Context) GlobalBoolT(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBoolT(name, fs)
}
return false
}
func lookupBoolT(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
}
// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration)
type DurationFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value time.Duration
Destination *time.Duration
}
// String returns a readable representation of this value
// (for usage defaults)
func (f DurationFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f DurationFlag) GetName() string {
return f.Name
}
// Duration looks up the value of a local DurationFlag, returns
// 0 if not found
func (c *Context) Duration(name string) time.Duration {
return lookupDuration(name, c.flagSet)
}
// GlobalDuration looks up the value of a global DurationFlag, returns
// 0 if not found
func (c *Context) GlobalDuration(name string) time.Duration {
if fs := lookupGlobalFlagSet(name, c); 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
}
// Float64Flag is a flag with type float64
type Float64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value float64
Destination *float64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Float64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Float64Flag) GetName() string {
return f.Name
}
// Float64 looks up the value of a local Float64Flag, returns
// 0 if not found
func (c *Context) Float64(name string) float64 {
return lookupFloat64(name, c.flagSet)
}
// GlobalFloat64 looks up the value of a global Float64Flag, returns
// 0 if not found
func (c *Context) GlobalFloat64(name string) float64 {
if fs := lookupGlobalFlagSet(name, c); 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
}
// GenericFlag is a flag with type Generic
type GenericFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value Generic
}
// String returns a readable representation of this value
// (for usage defaults)
func (f GenericFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f GenericFlag) GetName() string {
return f.Name
}
// Generic looks up the value of a local GenericFlag, returns
// nil if not found
func (c *Context) Generic(name string) interface{} {
return lookupGeneric(name, c.flagSet)
}
// GlobalGeneric looks up the value of a global GenericFlag, returns
// nil if not found
func (c *Context) GlobalGeneric(name string) interface{} {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupGeneric(name, fs)
}
return nil
}
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value, error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64Flag is a flag with type int64
type Int64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int64
Destination *int64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64Flag) GetName() string {
return f.Name
}
// Int64 looks up the value of a local Int64Flag, returns
// 0 if not found
func (c *Context) Int64(name string) int64 {
return lookupInt64(name, c.flagSet)
}
// GlobalInt64 looks up the value of a global Int64Flag, returns
// 0 if not found
func (c *Context) GlobalInt64(name string) int64 {
if fs := lookupGlobalFlagSet(name, c); 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
}
// IntFlag is a flag with type int
type IntFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int
Destination *int
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntFlag) GetName() string {
return f.Name
}
// Int looks up the value of a local IntFlag, returns
// 0 if not found
func (c *Context) Int(name string) int {
return lookupInt(name, c.flagSet)
}
// GlobalInt looks up the value of a global IntFlag, returns
// 0 if not found
func (c *Context) GlobalInt(name string) int {
if fs := lookupGlobalFlagSet(name, c); 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
}
// IntSliceFlag is a flag with type *IntSlice
type IntSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *IntSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntSliceFlag) GetName() string {
return f.Name
}
// IntSlice looks up the value of a local IntSliceFlag, returns
// nil if not found
func (c *Context) IntSlice(name string) []int {
return lookupIntSlice(name, c.flagSet)
}
// GlobalIntSlice looks up the value of a global IntSliceFlag, returns
// nil if not found
func (c *Context) GlobalIntSlice(name string) []int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupIntSlice(name, fs)
}
return nil
}
func lookupIntSlice(name string, set *flag.FlagSet) []int {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*IntSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64SliceFlag is a flag with type *Int64Slice
type Int64SliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *Int64Slice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64SliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64SliceFlag) GetName() string {
return f.Name
}
// Int64Slice looks up the value of a local Int64SliceFlag, returns
// nil if not found
func (c *Context) Int64Slice(name string) []int64 {
return lookupInt64Slice(name, c.flagSet)
}
// GlobalInt64Slice looks up the value of a global Int64SliceFlag, returns
// nil if not found
func (c *Context) GlobalInt64Slice(name string) []int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64Slice(name, fs)
}
return nil
}
func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*Int64Slice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// StringFlag is a flag with type string
type StringFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value string
Destination *string
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringFlag) GetName() string {
return f.Name
}
// String looks up the value of a local StringFlag, returns
// "" if not found
func (c *Context) String(name string) string {
return lookupString(name, c.flagSet)
}
// GlobalString looks up the value of a global StringFlag, returns
// "" if not found
func (c *Context) GlobalString(name string) string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupString(name, fs)
}
return ""
}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value.String(), error(nil)
if err != nil {
return ""
}
return parsed
}
return ""
}
// StringSliceFlag is a flag with type *StringSlice
type StringSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *StringSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringSliceFlag) GetName() string {
return f.Name
}
// StringSlice looks up the value of a local StringSliceFlag, returns
// nil if not found
func (c *Context) StringSlice(name string) []string {
return lookupStringSlice(name, c.flagSet)
}
// GlobalStringSlice looks up the value of a global StringSliceFlag, returns
// nil if not found
func (c *Context) GlobalStringSlice(name string) []string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupStringSlice(name, fs)
}
return nil
}
func lookupStringSlice(name string, set *flag.FlagSet) []string {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*StringSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Uint64Flag is a flag with type uint64
type Uint64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint64
Destination *uint64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Uint64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Uint64Flag) GetName() string {
return f.Name
}
// Uint64 looks up the value of a local Uint64Flag, returns
// 0 if not found
func (c *Context) Uint64(name string) uint64 {
return lookupUint64(name, c.flagSet)
}
// GlobalUint64 looks up the value of a global Uint64Flag, returns
// 0 if not found
func (c *Context) GlobalUint64(name string) uint64 {
if fs := lookupGlobalFlagSet(name, c); 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
}
// UintFlag is a flag with type uint
type UintFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint
Destination *uint
}
// String returns a readable representation of this value
// (for usage defaults)
func (f UintFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f UintFlag) GetName() string {
return f.Name
}
// Uint looks up the value of a local UintFlag, returns
// 0 if not found
func (c *Context) Uint(name string) uint {
return lookupUint(name, c.flagSet)
}
// GlobalUint looks up the value of a global UintFlag, returns
// 0 if not found
func (c *Context) GlobalUint(name string) uint {
if fs := lookupGlobalFlagSet(name, c); 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
}

28
vendor/github.com/codegangsta/cli/funcs.go generated vendored
View file

@ -1,28 +0,0 @@
package cli
// BashCompleteFunc is an action to execute when the bash-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 an 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(context *Context, err error, isSubcommand bool) 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

338
vendor/github.com/codegangsta/cli/help.go generated vendored
View file

@ -1,338 +0,0 @@
package cli
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
)
// 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:
{{.Name}}{{if .Usage}} - {{.Usage}}{{end}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
VERSION:
{{.Version}}{{end}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if len .Authors}}
AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
{{range $index, $author := .Authors}}{{if $index}}
{{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range $index, $option := .VisibleFlags}}{{if $index}}
{{end}}{{$option}}{{end}}{{end}}{{if .Copyright}}
COPYRIGHT:
{{.Copyright}}{{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:
{{.HelpName}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{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:
{{.HelpName}} - {{if .Description}}{{.Description}}{{else}}{{.Usage}}{{end}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
var helpCommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
ShowAppHelp(c)
return nil
},
}
var helpSubcommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
return ShowSubcommandHelp(c)
},
}
// 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 a default
// is used. The function signature is:
// func(w io.Writer, templ string, data interface{})
var HelpPrinter helpPrinter = printHelp
// HelpPrinterCustom is same as HelpPrinter but
// takes a custom function for template function map.
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(c *Context) (err error) {
if c.App.CustomAppHelpTemplate == "" {
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
return
}
customAppData := func() map[string]interface{} {
if c.App.ExtraInfo == nil {
return nil
}
return map[string]interface{}{
"ExtraInfo": c.App.ExtraInfo,
}
}
HelpPrinterCustom(c.App.Writer, c.App.CustomAppHelpTemplate, c.App, customAppData())
return nil
}
// DefaultAppComplete prints the list of subcommands as the default app completion method
func DefaultAppComplete(c *Context) {
for _, command := range c.App.Commands {
if command.Hidden {
continue
}
for _, name := range command.Names() {
fmt.Fprintln(c.App.Writer, name)
}
}
}
// 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 {
// show the subcommand help for a command with subcommands
if command == "" {
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
return nil
}
for _, c := range ctx.App.Commands {
if c.HasName(command) {
if c.CustomHelpTemplate != "" {
HelpPrinterCustom(ctx.App.Writer, c.CustomHelpTemplate, c, nil)
} else {
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
}
return nil
}
}
if ctx.App.CommandNotFound == nil {
return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3)
}
ctx.App.CommandNotFound(ctx, command)
return nil
}
// ShowSubcommandHelp prints help for the given subcommand
func ShowSubcommandHelp(c *Context) error {
return ShowCommandHelp(c, c.Command.Name)
}
// ShowVersion prints the version number of the App
func ShowVersion(c *Context) {
VersionPrinter(c)
}
func printVersion(c *Context) {
fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
}
// ShowCompletions prints the lists of commands within a given context
func ShowCompletions(c *Context) {
a := c.App
if a != nil && a.BashComplete != nil {
a.BashComplete(c)
}
}
// ShowCommandCompletions prints the custom completions for a given command
func ShowCommandCompletions(ctx *Context, command string) {
c := ctx.App.Command(command)
if c != nil && c.BashComplete != nil {
c.BashComplete(ctx)
}
}
func printHelpCustom(out io.Writer, templ string, data interface{}, customFunc map[string]interface{}) {
funcMap := template.FuncMap{
"join": strings.Join,
}
if customFunc != nil {
for key, value := range customFunc {
funcMap[key] = value
}
}
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
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{}) {
printHelpCustom(out, templ, data, nil)
}
func checkVersion(c *Context) bool {
found := false
if VersionFlag.GetName() != "" {
eachName(VersionFlag.GetName(), func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkHelp(c *Context) bool {
found := false
if HelpFlag.GetName() != "" {
eachName(HelpFlag.GetName(), func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkCommandHelp(c *Context, name string) bool {
if c.Bool("h") || c.Bool("help") {
ShowCommandHelp(c, name)
return true
}
return false
}
func checkSubcommandHelp(c *Context) bool {
if c.Bool("h") || c.Bool("help") {
ShowSubcommandHelp(c)
return true
}
return false
}
func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
if !a.EnableBashCompletion {
return false, arguments
}
pos := len(arguments) - 1
lastArg := arguments[pos]
if lastArg != "--"+BashCompletionFlag.GetName() {
return false, arguments
}
return true, arguments[:pos]
}
func checkCompletions(c *Context) bool {
if !c.shellComplete {
return false
}
if args := c.Args(); args.Present() {
name := args.First()
if cmd := c.App.Command(name); cmd != nil {
// let the command handle the completion
return false
}
}
ShowCompletions(c)
return true
}
func checkCommandCompletions(c *Context, name string) bool {
if !c.shellComplete {
return false
}
ShowCommandCompletions(c, name)
return true
}

202
vendor/github.com/vulcand/route/LICENSE generated vendored
View file

@ -1,202 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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control with that entity. For the purposes of this definition,
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direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
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including but not limited to software source code, documentation
source, and configuration files.
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
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"Work" shall mean the work of authorship, whether in Source or
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"Contribution" shall mean any work of authorship, including
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on Your own behalf and on Your sole responsibility, not on behalf
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incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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Copyright {yyyy} {name of copyright owner}
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you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

88
vendor/github.com/vulcand/route/iter.go generated vendored
View file

@ -1,88 +0,0 @@
package route
import (
"fmt"
)
// charPos stores the position in the iterator
type charPos struct {
i int
si int
}
// charIter is a iterator over sequence of strings, returns byte-by-byte characters in string by string
type charIter struct {
i int // position in the current string
si int // position in the array of strings
seq []string // sequence of strings, e.g. ["GET", "/path"]
sep []byte // every string in the sequence has an associated separator used for trie matching, e.g. path uses '/' for separator
// so sequence ["a.host", "/path "]has acoompanying separators ['.', '/']
}
func newIter(seq []string, sep []byte) *charIter {
return &charIter{
i: 0,
si: 0,
seq: seq,
sep: sep,
}
}
func (r *charIter) level() int {
return r.si
}
func (r *charIter) String() string {
if r.isEnd() {
return "<end>"
}
return fmt.Sprintf("<%d:%v>", r.i, r.seq[r.si])
}
func (r *charIter) isEnd() bool {
return len(r.seq) == 0 || // no data at all
(r.si >= len(r.seq)-1 && r.i >= len(r.seq[r.si])) || // we are at the last char of last seq
(len(r.seq[r.si]) == 0) // empty input
}
func (r *charIter) position() charPos {
return charPos{i: r.i, si: r.si}
}
func (r *charIter) setPosition(p charPos) {
r.i = p.i
r.si = p.si
}
func (r *charIter) pushBack() {
if r.i == 0 && r.si == 0 { // this is start
return
} else if r.i == 0 && r.si != 0 { // this is start of the next string
r.si--
r.i = len(r.seq[r.si]) - 1
return
}
r.i--
}
// next returns current byte in the sequence, separator corresponding to that byte, and boolean idicator of whether it's the end of the sequence
func (r *charIter) next() (byte, byte, bool) {
// we have reached the last string in the index, end
if r.isEnd() {
return 0, 0, false
}
b := r.seq[r.si][r.i]
sep := r.sep[r.si]
r.i++
// current string index exceeded the last char of the current string
// move to the next string if it's present
if r.i >= len(r.seq[r.si]) && r.si < len(r.seq)-1 {
r.si++
r.i = 0
}
return b, sep, true
}

186
vendor/github.com/vulcand/route/mapper.go generated vendored
View file

@ -1,186 +0,0 @@
package route
import (
"net/http"
"strings"
)
// requestMapper maps the request to string e.g. maps request to it's hostname, or request to header
type requestMapper interface {
// separator returns the separator that makes sense for this request, e.g. / for urls or . for domains
separator() byte
// equals returns the equivalent mapper if the two mappers are equivalent, e.g. map to the same sequence
// mappers are also equivalent if one mapper is subset of another, e.g. combined mapper (host, path) is equivalent of (host) mapper
equivalent(requestMapper) requestMapper
// mapRequest maps request to string, e.g. request to it's URL path
mapRequest(r *http.Request) string
// newIter returns the iterator instead of string for stream matchers
newIter(r *http.Request) *charIter
}
type methodMapper struct {
}
func (m *methodMapper) separator() byte {
return methodSep
}
func (m *methodMapper) equivalent(o requestMapper) requestMapper {
_, ok := o.(*methodMapper)
if ok {
return m
}
return nil
}
func (m *methodMapper) mapRequest(r *http.Request) string {
return r.Method
}
func (m *methodMapper) newIter(r *http.Request) *charIter {
return newIter([]string{m.mapRequest(r)}, []byte{m.separator()})
}
type pathMapper struct {
}
func (m *pathMapper) separator() byte {
return pathSep
}
func (p *pathMapper) equivalent(o requestMapper) requestMapper {
_, ok := o.(*pathMapper)
if ok {
return p
}
return nil
}
func (p *pathMapper) newIter(r *http.Request) *charIter {
return newIter([]string{p.mapRequest(r)}, []byte{p.separator()})
}
func (p *pathMapper) mapRequest(r *http.Request) string {
return rawPath(r)
}
type hostMapper struct {
}
func (p *hostMapper) equivalent(o requestMapper) requestMapper {
_, ok := o.(*hostMapper)
if ok {
return p
}
return nil
}
func (m *hostMapper) separator() byte {
return domainSep
}
func (h *hostMapper) mapRequest(r *http.Request) string {
return strings.Split(strings.ToLower(r.Host), ":")[0]
}
func (p *hostMapper) newIter(r *http.Request) *charIter {
return newIter([]string{p.mapRequest(r)}, []byte{p.separator()})
}
type headerMapper struct {
header string
}
func (h *headerMapper) equivalent(o requestMapper) requestMapper {
hm, ok := o.(*headerMapper)
if ok && hm.header == h.header {
return h
}
return nil
}
func (m *headerMapper) separator() byte {
return headerSep
}
func (h *headerMapper) mapRequest(r *http.Request) string {
return r.Header.Get(h.header)
}
func (h *headerMapper) newIter(r *http.Request) *charIter {
return newIter([]string{h.mapRequest(r)}, []byte{h.separator()})
}
type seqMapper struct {
seq []requestMapper
}
func newSeqMapper(seq ...requestMapper) *seqMapper {
var out []requestMapper
for _, s := range seq {
switch m := s.(type) {
case *seqMapper:
out = append(out, m.seq...)
default:
out = append(out, s)
}
}
return &seqMapper{seq: out}
}
func (s *seqMapper) newIter(r *http.Request) *charIter {
out := make([]string, len(s.seq))
for i := range s.seq {
out[i] = s.seq[i].mapRequest(r)
}
seps := make([]byte, len(s.seq))
for i := range s.seq {
seps[i] = s.seq[i].separator()
}
return newIter(out, seps)
}
func (s *seqMapper) mapRequest(r *http.Request) string {
out := make([]string, len(s.seq))
for i := range s.seq {
out[i] = s.seq[i].mapRequest(r)
}
return strings.Join(out, "")
}
func (s *seqMapper) separator() byte {
return s.seq[0].separator()
}
func (s *seqMapper) equivalent(o requestMapper) requestMapper {
so, ok := o.(*seqMapper)
if !ok {
return nil
}
var longer, shorter *seqMapper
if len(s.seq) > len(so.seq) {
longer = s
shorter = so
} else {
longer = so
shorter = s
}
for i, _ := range longer.seq {
// shorter is subset of longer, return longer sequence mapper
if i >= len(shorter.seq)-1 {
return longer
}
if longer.seq[i].equivalent(shorter.seq[i]) == nil {
return nil
}
}
return longer
}
const (
pathSep = '/'
domainSep = '.'
headerSep = '/'
methodSep = ' '
)

155
vendor/github.com/vulcand/route/matcher.go generated vendored
View file

@ -1,155 +0,0 @@
package route
import (
"fmt"
"net/http"
"regexp"
"strings"
)
type matcher interface {
match(*http.Request) *match
setMatch(match *match)
canMerge(matcher) bool
merge(matcher) (matcher, error)
canChain(matcher) bool
chain(matcher) (matcher, error)
}
func hostTrieMatcher(hostname string) (matcher, error) {
return newTrieMatcher(strings.ToLower(hostname), &hostMapper{}, &match{})
}
func hostRegexpMatcher(hostname string) (matcher, error) {
return newRegexpMatcher(strings.ToLower(hostname), &hostMapper{}, &match{})
}
func methodTrieMatcher(method string) (matcher, error) {
return newTrieMatcher(method, &methodMapper{}, &match{})
}
func methodRegexpMatcher(method string) (matcher, error) {
return newRegexpMatcher(method, &methodMapper{}, &match{})
}
func pathTrieMatcher(path string) (matcher, error) {
return newTrieMatcher(path, &pathMapper{}, &match{})
}
func pathRegexpMatcher(path string) (matcher, error) {
return newRegexpMatcher(path, &pathMapper{}, &match{})
}
func headerTrieMatcher(name, value string) (matcher, error) {
return newTrieMatcher(value, &headerMapper{header: name}, &match{})
}
func headerRegexpMatcher(name, value string) (matcher, error) {
return newRegexpMatcher(value, &headerMapper{header: name}, &match{})
}
type match struct {
val interface{}
}
type andMatcher struct {
a matcher
b matcher
}
func newAndMatcher(a, b matcher) matcher {
if a.canChain(b) {
m, err := a.chain(b)
if err == nil {
return m
}
}
return &andMatcher{
a: a, b: b,
}
}
func (a *andMatcher) canChain(matcher) bool {
return false
}
func (a *andMatcher) chain(matcher) (matcher, error) {
return nil, fmt.Errorf("not supported")
}
func (a *andMatcher) String() string {
return fmt.Sprintf("andMatcher(%v, %v)", a.a, a.b)
}
func (a *andMatcher) setMatch(m *match) {
a.a.setMatch(m)
a.b.setMatch(m)
}
func (a *andMatcher) canMerge(o matcher) bool {
return false
}
func (a *andMatcher) merge(o matcher) (matcher, error) {
return nil, fmt.Errorf("Method not supported")
}
func (a *andMatcher) match(req *http.Request) *match {
result := a.a.match(req)
if result == nil {
return nil
}
return a.b.match(req)
}
// Regular expression matcher, takes a regular expression and requestMapper
type regexpMatcher struct {
// Uses this mapper to extract a string from a request to match against
mapper requestMapper
// Compiled regular expression
expr *regexp.Regexp
// match result
result *match
}
func (r *regexpMatcher) canChain(matcher) bool {
return false
}
func (r *regexpMatcher) chain(matcher) (matcher, error) {
return nil, fmt.Errorf("not supported")
}
func (m *regexpMatcher) String() string {
return fmt.Sprintf("regexpMatcher(%v)", m.expr)
}
func (m *regexpMatcher) setMatch(result *match) {
m.result = result
}
func newRegexpMatcher(expr string, mapper requestMapper, m *match) (matcher, error) {
r, err := regexp.Compile(expr)
if err != nil {
return nil, fmt.Errorf("Bad regular expression: %s %s", expr, err)
}
return &regexpMatcher{expr: r, mapper: mapper, result: m}, nil
}
func (m *regexpMatcher) canMerge(matcher) bool {
return false
}
func (m *regexpMatcher) merge(matcher) (matcher, error) {
return nil, fmt.Errorf("Method not supported")
}
func (m *regexpMatcher) match(req *http.Request) *match {
if m.expr.MatchString(m.mapper.mapRequest(req)) {
return m.result
}
return nil
}

74
vendor/github.com/vulcand/route/mux.go generated vendored
View file

@ -1,74 +0,0 @@
package route
import (
"fmt"
"net/http"
)
// Mux implements router compatible with http.Handler
type Mux struct {
// NotFound sets handler for routes that are not found
notFound http.Handler
router Router
}
// NewMux returns new Mux router
func NewMux() *Mux {
return &Mux{
router: New(),
notFound: &notFound{},
}
}
// Handle adds http handler for route expression
func (m *Mux) Handle(expr string, handler http.Handler) error {
return m.router.UpsertRoute(expr, handler)
}
// Handle adds http handler function for route expression
func (m *Mux) HandleFunc(expr string, handler func(http.ResponseWriter, *http.Request)) error {
return m.Handle(expr, http.HandlerFunc(handler))
}
func (m *Mux) Remove(expr string) error {
return m.router.RemoveRoute(expr)
}
// ServeHTTP routes the request and passes it to handler
func (m *Mux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
h, err := m.router.Route(r)
if err != nil || h == nil {
m.notFound.ServeHTTP(w, r)
return
}
h.(http.Handler).ServeHTTP(w, r)
}
func (m *Mux) SetNotFound(n http.Handler) error {
if n == nil {
return fmt.Errorf("Not Found handler cannot be nil. Operation rejected.")
}
m.notFound = n
return nil
}
func (m *Mux) GetNotFound() http.Handler {
return m.notFound
}
func (m *Mux) IsValid(expr string) bool {
return IsValid(expr)
}
// NotFound is a generic http.Handler for request
type notFound struct {
}
// ServeHTTP returns a simple 404 Not found response
func (notFound) ServeHTTP(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
w.WriteHeader(http.StatusNotFound)
fmt.Fprint(w, "Not found")
}

47
vendor/github.com/vulcand/route/parse.go generated vendored
View file

@ -1,47 +0,0 @@
package route
import (
"fmt"
"github.com/vulcand/predicate"
)
// IsValid checks whether expression is valid
func IsValid(expr string) bool {
_, err := parse(expr, &match{})
return err == nil
}
func parse(expression string, result *match) (matcher, error) {
p, err := predicate.NewParser(predicate.Def{
Functions: map[string]interface{}{
"Host": hostTrieMatcher,
"HostRegexp": hostRegexpMatcher,
"Path": pathTrieMatcher,
"PathRegexp": pathRegexpMatcher,
"Method": methodTrieMatcher,
"MethodRegexp": methodRegexpMatcher,
"Header": headerTrieMatcher,
"HeaderRegexp": headerRegexpMatcher,
},
Operators: predicate.Operators{
AND: newAndMatcher,
},
})
if err != nil {
return nil, err
}
out, err := p.Parse(expression)
if err != nil {
return nil, err
}
m, ok := out.(matcher)
if !ok {
return nil, fmt.Errorf("unknown result type: %T", out)
}
m.setMatch(result)
return m, nil
}

195
vendor/github.com/vulcand/route/router.go generated vendored
View file

@ -1,195 +0,0 @@
/*
package route provides http package-compatible routing library. It can route http requests by hostname, method, path and headers.
Route defines simple language for matching requests based on Go syntax. Route provides series of matchers that follow the syntax:
Matcher("value") // matches value using trie
Matcher("<string>.value") // uses trie-based matching for a.value and b.value
MatcherRegexp(".*value") // uses regexp-based matching
Host matcher:
Host("<subdomain>.localhost") // trie-based matcher for a.localhost, b.localhost, etc.
HostRegexp(".*localhost") // regexp based matcher
Path matcher:
Path("/hello/<value>") // trie-based matcher for raw request path
PathRegexp("/hello/.*") // regexp-based matcher for raw request path
Method matcher:
Method("GET") // trie-based matcher for request method
MethodRegexp("POST|PUT") // regexp based matcher for request method
Header matcher:
Header("Content-Type", "application/<subtype>") // trie-based matcher for headers
HeaderRegexp("Content-Type", "application/.*") // regexp based matcher for headers
Matchers can be combined using && operator:
Host("localhost") && Method("POST") && Path("/v1")
Route library will join the trie-based matchers into one trie matcher when possible, for example:
Host("localhost") && Method("POST") && Path("/v1")
Host("localhost") && Method("GET") && Path("/v2")
Will be combined into one trie for performance. If you add a third route:
Host("localhost") && Method("GET") && PathRegexp("/v2/.*")
It wont be joined ito the trie, and would be matched separatedly instead.
*/
package route
import (
"fmt"
"net/http"
"sort"
"sync"
)
// Router implements http request routing and operations. It is a generic router not conforming to http.Handler interface, to get a handler
// conforming to http.Handler interface, use Mux router instead.
type Router interface {
// GetRoute returns a route by a given expression, returns nil if expresison is not found
GetRoute(string) interface{}
// AddRoute adds a route to match by expression, returns error if the expression already defined, or route expression is incorrect
AddRoute(string, interface{}) error
// RemoveRoute removes a route for a given expression
RemoveRoute(string) error
// UpsertRoute updates an existing route or adds a new route by given expression
UpsertRoute(string, interface{}) error
// Route takes a request and matches it against requests, returns matched route in case if found, nil if there's no matching route or error in case of internal error.
Route(*http.Request) (interface{}, error)
}
type router struct {
mutex *sync.RWMutex
matchers []matcher
routes map[string]*match
}
// New creates a new Router instance
func New() Router {
return &router{
mutex: &sync.RWMutex{},
routes: make(map[string]*match),
}
}
func (e *router) GetRoute(expr string) interface{} {
e.mutex.RLock()
defer e.mutex.RUnlock()
res, ok := e.routes[expr]
if ok {
return res.val
}
return nil
}
func (e *router) AddRoute(expr string, val interface{}) error {
e.mutex.Lock()
defer e.mutex.Unlock()
if _, ok := e.routes[expr]; ok {
return fmt.Errorf("Expression '%s' already exists", expr)
}
result := &match{val: val}
if _, err := parse(expr, result); err != nil {
return err
}
e.routes[expr] = result
if err := e.compile(); err != nil {
delete(e.routes, expr)
return err
}
return nil
}
func (e *router) UpsertRoute(expr string, val interface{}) error {
e.mutex.Lock()
defer e.mutex.Unlock()
result := &match{val: val}
if _, err := parse(expr, result); err != nil {
return err
}
prev, existed := e.routes[expr]
e.routes[expr] = result
if err := e.compile(); err != nil {
if existed {
e.routes[expr] = prev
} else {
delete(e.routes, expr)
}
return err
}
return nil
}
func (e *router) compile() error {
var exprs = []string{}
for expr, _ := range e.routes {
exprs = append(exprs, expr)
}
sort.Sort(sort.Reverse(sort.StringSlice(exprs)))
matchers := []matcher{}
i := 0
for _, expr := range exprs {
result := e.routes[expr]
matcher, err := parse(expr, result)
if err != nil {
return err
}
// Merge the previous and new matcher if that's possible
if i > 0 && matchers[i-1].canMerge(matcher) {
m, err := matchers[i-1].merge(matcher)
if err != nil {
return err
}
matchers[i-1] = m
} else {
matchers = append(matchers, matcher)
i += 1
}
}
e.matchers = matchers
return nil
}
func (e *router) RemoveRoute(expr string) error {
e.mutex.Lock()
defer e.mutex.Unlock()
delete(e.routes, expr)
return e.compile()
}
func (e *router) Route(req *http.Request) (interface{}, error) {
e.mutex.RLock()
defer e.mutex.RUnlock()
if len(e.matchers) == 0 {
return nil, nil
}
for _, m := range e.matchers {
if l := m.match(req); l != nil {
return l.val, nil
}
}
return nil, nil
}

476
vendor/github.com/vulcand/route/trie.go generated vendored
View file

@ -1,476 +0,0 @@
package route
import (
"bytes"
"fmt"
"net/http"
"regexp"
"strings"
"unicode"
)
// Regular expression to match url parameters
var reParam *regexp.Regexp
func init() {
reParam = regexp.MustCompile("^<([^>]+)>")
}
// Trie http://en.wikipedia.org/wiki/Trie for url matching with support of named parameters
type trie struct {
root *trieNode
// mapper takes the request and returns sequence that can be matched
mapper requestMapper
}
func (t *trie) canChain(o matcher) bool {
_, ok := o.(*trie)
return ok
}
func (t *trie) chain(o matcher) (matcher, error) {
to, ok := o.(*trie)
if !ok {
return nil, fmt.Errorf("can chain only with other trie")
}
m := t.root.findMatchNode()
m.matches = nil
m.children = []*trieNode{to.root}
t.root.setLevel(-1)
return &trie{
root: t.root,
mapper: newSeqMapper(t.mapper, to.mapper),
}, nil
}
func (t *trie) String() string {
return fmt.Sprintf("trieMatcher()")
}
// Takes the expression with url and the node that corresponds to this expression and returns parsed trie
func newTrieMatcher(expression string, mapper requestMapper, result *match) (*trie, error) {
t := &trie{
mapper: mapper,
}
t.root = &trieNode{trie: t}
if len(expression) == 0 {
return nil, fmt.Errorf("Empty URL expression")
}
err := t.root.parseExpression(-1, expression, result)
if err != nil {
return nil, err
}
return t, nil
}
func (t *trie) setMatch(result *match) {
t.root.setMatch(result)
}
// Tries can merge with other tries
func (t *trie) canMerge(m matcher) bool {
ot, ok := m.(*trie)
return ok && t.mapper.equivalent(ot.mapper) != nil
}
// Merge takes the other trie and modifies itself to match the passed trie as well.
// Note that trie passed as a parameter can be only simple trie without multiple branches per node, e.g. a->b->c->
// Trie on the left is "accumulating" trie that grows.
func (p *trie) merge(m matcher) (matcher, error) {
other, ok := m.(*trie)
if !ok {
return nil, fmt.Errorf("Can't merge %T and %T", p, m)
}
mapper := p.mapper.equivalent(other.mapper)
if mapper == nil {
return nil, fmt.Errorf("Can't merge %T and %T", p, m)
}
root, err := p.root.merge(other.root)
if err != nil {
return nil, err
}
return &trie{root: root, mapper: mapper}, nil
}
// Takes the request and returns the location if the request path matches any of it's paths
// returns nil if none of the requests matches
func (p *trie) match(r *http.Request) *match {
if p.root == nil {
return nil
}
return p.root.match(p.mapper.newIter(r))
}
type trieNode struct {
trie *trie
// Matching character, can be empty in case if it's a root node
// or node with a pattern matcher
char byte
// Optional children of this node, can be empty if it's a leaf node
children []*trieNode
// If present, means that this node is a pattern matcher
patternMatcher patternMatcher
// If present it means this node contains potential match for a request, and this is a leaf node.
matches []*match
// For chained tries matching different parts of the request levels would increase for next chained trie nodes
level int
}
func (e *trieNode) setMatch(m *match) {
n := e.findMatchNode()
n.matches = []*match{m}
}
func (e *trieNode) setLevel(level int) {
if e.isRoot() {
level++
}
e.level = level
if len(e.matches) != 0 {
return
}
// Check for the match in child nodes
for _, c := range e.children {
c.setLevel(level)
}
}
func (e *trieNode) findMatchNode() *trieNode {
if len(e.matches) != 0 {
return e
}
// Check for the match in child nodes
for _, c := range e.children {
if n := c.findMatchNode(); n != nil {
return n
}
}
return nil
}
func (e *trieNode) isMatching() bool {
return len(e.matches) != 0
}
func (e *trieNode) isRoot() bool {
return e.char == byte(0) && e.patternMatcher == nil
}
func (e *trieNode) isPatternMatcher() bool {
return e.patternMatcher != nil
}
func (e *trieNode) isCharMatcher() bool {
return e.char != 0
}
func (e *trieNode) String() string {
self := ""
if e.patternMatcher != nil {
self = e.patternMatcher.String()
} else {
self = fmt.Sprintf("%c", e.char)
}
if e.isMatching() {
return fmt.Sprintf("match(%d:%s)", e.level, self)
} else if e.isRoot() {
return fmt.Sprintf("root(%d)", e.level)
} else {
return fmt.Sprintf("node(%d:%s)", e.level, self)
}
}
func (e *trieNode) equals(o *trieNode) bool {
return (e.level == o.level) && // we can merge nodes that are on the same level to avoid merges for different subtrie parts
(e.char == o.char) && // chars are equal
(e.patternMatcher == nil && o.patternMatcher == nil) || // both nodes have no matchers
((e.patternMatcher != nil && o.patternMatcher != nil) && e.patternMatcher.equals(o.patternMatcher)) // both nodes have equal matchers
}
func (e *trieNode) merge(o *trieNode) (*trieNode, error) {
children := make([]*trieNode, 0, len(e.children))
merged := make(map[*trieNode]bool)
// First, find the nodes with similar keys and merge them
for _, c := range e.children {
for _, c2 := range o.children {
// The nodes are equivalent, so we can merge them
if c.equals(c2) {
m, err := c.merge(c2)
if err != nil {
return nil, err
}
merged[c] = true
merged[c2] = true
children = append(children, m)
}
}
}
// Next, append the keys that haven't been merged
for _, c := range e.children {
if !merged[c] {
children = append(children, c)
}
}
for _, c := range o.children {
if !merged[c] {
children = append(children, c)
}
}
return &trieNode{
level: e.level,
trie: e.trie,
char: e.char,
children: children,
patternMatcher: e.patternMatcher,
matches: append(e.matches, o.matches...),
}, nil
}
func (p *trieNode) parseExpression(offset int, pattern string, m *match) error {
// We are the last element, so we are the matching node
if offset >= len(pattern)-1 {
p.matches = []*match{m}
return nil
}
// There's a next character that exists
patternMatcher, newOffset, err := parsePatternMatcher(offset+1, pattern)
// We have found the matcher, but the syntax or parameters are wrong
if err != nil {
return err
}
// Matcher was found
if patternMatcher != nil {
node := &trieNode{patternMatcher: patternMatcher, trie: p.trie}
p.children = []*trieNode{node}
return node.parseExpression(newOffset-1, pattern, m)
} else {
// Matcher was not found, next node is just a character
node := &trieNode{char: pattern[offset+1], trie: p.trie}
p.children = []*trieNode{node}
return node.parseExpression(offset+1, pattern, m)
}
}
func parsePatternMatcher(offset int, pattern string) (patternMatcher, int, error) {
if pattern[offset] != '<' {
return nil, -1, nil
}
rest := pattern[offset:]
match := reParam.FindStringSubmatchIndex(rest)
if len(match) == 0 {
return nil, -1, nil
}
// Split parsed matcher parameters separated by :
values := strings.Split(rest[match[2]:match[3]], ":")
// The common syntax is <matcherType:matcherArg1:matcherArg2>
matcherType := values[0]
matcherArgs := values[1:]
// In case if there's only one <param> is implicitly converted to <string:param>
if len(values) == 1 {
matcherType = "string"
matcherArgs = values
}
matcher, err := makeMatcher(matcherType, matcherArgs)
if err != nil {
return nil, offset, err
}
return matcher, offset + match[1], nil
}
type matchResult struct {
matcher patternMatcher
value interface{}
}
type patternMatcher interface {
getName() string
match(i *charIter) bool
equals(other patternMatcher) bool
String() string
}
func makeMatcher(matcherType string, matcherArgs []string) (patternMatcher, error) {
switch matcherType {
case "string":
return newStringMatcher(matcherArgs)
case "int":
return newIntMatcher(matcherArgs)
}
return nil, fmt.Errorf("unsupported matcher: %s", matcherType)
}
func newStringMatcher(args []string) (patternMatcher, error) {
if len(args) != 1 {
return nil, fmt.Errorf("expected only one parameter - variable name, got: %s", args)
}
return &stringMatcher{name: args[0]}, nil
}
type stringMatcher struct {
name string
}
func (s *stringMatcher) String() string {
return fmt.Sprintf("<string:%s>", s.name)
}
func (s *stringMatcher) getName() string {
return s.name
}
func (s *stringMatcher) match(i *charIter) bool {
s.grabValue(i)
return true
}
func (s *stringMatcher) equals(other patternMatcher) bool {
_, ok := other.(*stringMatcher)
return ok && other.getName() == s.getName()
}
func (s *stringMatcher) grabValue(i *charIter) {
for {
c, sep, ok := i.next()
if !ok {
return
}
if c == sep {
i.pushBack()
return
}
}
}
func newIntMatcher(args []string) (patternMatcher, error) {
if len(args) != 1 {
return nil, fmt.Errorf("expected only one parameter - variable name, got: %s", args)
}
return &intMatcher{name: args[0]}, nil
}
type intMatcher struct {
name string
}
func (s *intMatcher) String() string {
return fmt.Sprintf("<int:%s>", s.name)
}
func (s *intMatcher) getName() string {
return s.name
}
func (s *intMatcher) match(iter *charIter) bool {
// count stores amount of consumed characters so we know how many push
// backs to do in case there is no match
var count int
for {
c, sep, ok := iter.next()
count++
// if the current character is not a number:
// - it's either a separator that means it's a match
// - it's some other character that means it's not a match
if !unicode.IsDigit(rune(c)) {
if c == sep {
iter.pushBack()
return true
} else {
for i := 0; i < count; i++ {
iter.pushBack()
}
return false
}
}
// if it's the end of the string, it's a match
if !ok {
return true
}
}
}
func (s *intMatcher) equals(other patternMatcher) bool {
_, ok := other.(*intMatcher)
return ok && other.getName() == s.getName()
}
func (e *trieNode) matchNode(i *charIter) bool {
if i.level() != e.level {
return false
}
if e.isRoot() {
return true
}
if e.isPatternMatcher() {
return e.patternMatcher.match(i)
}
c, _, ok := i.next()
if !ok {
// we have reached the end
return false
}
if c != e.char {
// no match, so don't consume the character
i.pushBack()
return false
}
return true
}
func (e *trieNode) match(i *charIter) *match {
if !e.matchNode(i) {
return nil
}
// This is a leaf node and we are at the last character of the pattern
if len(e.matches) != 0 && i.isEnd() {
return e.matches[0]
}
// Check for the match in child nodes
for _, c := range e.children {
p := i.position()
if match := c.match(i); match != nil {
return match
}
i.setPosition(p)
}
// Child nodes did not match and we at the boundary
if len(e.matches) != 0 && i.level() > e.level {
return e.matches[0]
}
return nil
}
// printTrie is useful for debugging and test purposes, it outputs the formatted
// represenation of the trie
func printTrie(t *trie) string {
return printTrieNode(t.root)
}
func printTrieNode(e *trieNode) string {
out := &bytes.Buffer{}
printTrieNodeInner(out, e, 0)
return out.String()
}
func printTrieNodeInner(b *bytes.Buffer, e *trieNode, offset int) {
if offset == 0 {
fmt.Fprintf(b, "\n")
}
padding := strings.Repeat(" ", offset)
fmt.Fprintf(b, "%s%s\n", padding, e.String())
if len(e.children) != 0 {
for _, c := range e.children {
printTrieNodeInner(b, c, offset+1)
}
}
}

33
vendor/github.com/vulcand/route/utils.go generated vendored
View file

@ -1,33 +0,0 @@
package route
import (
"net/http"
"strings"
)
// RawPath returns escaped url path section
func rawPath(r *http.Request) string {
// If there are no escape symbols, don't extract raw path
if !strings.ContainsRune(r.RequestURI, '%') {
if len(r.URL.Path) == 0 {
return "/"
}
return r.URL.Path
}
path := r.RequestURI
if path == "" {
path = "/"
}
// This is absolute URI, split host and port
if strings.Contains(path, "://") {
vals := strings.SplitN(path, r.URL.Host, 2)
if len(vals) == 2 {
path = vals[1]
}
}
idx := strings.IndexRune(path, '?')
if idx == -1 {
return path
}
return path[:idx]
}

201
vendor/github.com/vulcand/vulcand/LICENSE generated vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
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this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
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institute patent litigation against any entity (including a
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
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Work or Derivative Works thereof in any medium, with or without
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meet the following conditions:
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Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
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of the following places: within a NOTICE text file distributed
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5. Submission of Contributions. Unless You explicitly state otherwise,
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by You to the Licensor shall be under the terms and conditions of
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PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

13
vendor/github.com/vulcand/vulcand/conntracker/conntracker.go generated vendored
View file

@ -1,13 +0,0 @@
package conntracker
import (
"net"
"net/http"
)
type ConnectionTracker interface {
RegisterStateChange(conn net.Conn, prev http.ConnState, cur http.ConnState)
Counts() ConnectionStats
}
type ConnectionStats map[http.ConnState]map[string]int64

20
vendor/github.com/vulcand/vulcand/main.go generated vendored
View file

@ -1,20 +0,0 @@
package main
import (
"fmt"
"os"
"runtime"
"github.com/vulcand/vulcand/plugin/registry"
"github.com/vulcand/vulcand/service"
)
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
if err := service.Run(registry.GetRegistry()); err != nil {
fmt.Printf("Service exited with error: %s\n", err)
os.Exit(255)
} else {
fmt.Println("Service exited gracefully")
}
}

7
vendor/github.com/vulcand/vulcand/plugin/cacheprovider/CacheProvider.go generated vendored
View file

@ -1,7 +0,0 @@
package cacheprovider
import "golang.org/x/crypto/acme/autocert"
type T interface {
GetAutoCertCache() autocert.Cache
}

71
vendor/github.com/vulcand/vulcand/plugin/cacheprovider/EtcdV2CacheProvider.go generated vendored
View file

@ -1,71 +0,0 @@
package cacheprovider
import (
"context"
etcd "github.com/coreos/etcd/client"
"golang.org/x/crypto/acme/autocert"
)
func NewEtcdV2CacheProvider(kapi etcd.KeysAPI, vulcanPrefix string) T {
return &etcdv2CacheProvider{
kapi: kapi,
vulcanPrefix: vulcanPrefix,
}
}
type etcdv2CacheProvider struct {
kapi etcd.KeysAPI
vulcanPrefix string
autoCertCache autocert.Cache
}
func (p *etcdv2CacheProvider) GetAutoCertCache() autocert.Cache {
if p.autoCertCache == nil {
p.autoCertCache = &etcdv2AutoCertCache{
kapi: p.kapi,
prefix: p.vulcanPrefix + "/autocert_cache/",
}
}
return p.autoCertCache
}
type etcdv2AutoCertCache struct {
kapi etcd.KeysAPI
prefix string
}
// Get returns a certificate data for the specified key.
// If there's no such key, Get returns ErrCacheMiss.
func (ng *etcdv2AutoCertCache) Get(ctx context.Context, rawKey string) ([]byte, error) {
key := ng.normalized(rawKey)
r, err := ng.kapi.Get(ctx, key, &etcd.GetOptions{})
if err != nil {
return nil, err
}
if r.Node == nil {
return nil, autocert.ErrCacheMiss
}
return []byte(r.Node.Value), nil
}
// Put stores the data in the cache under the specified key.
// Inderlying implementations may use any data storage format,
// as long as the reverse operation, Get, results in the original data.
func (ng *etcdv2AutoCertCache) Put(ctx context.Context, rawKey string, data []byte) error {
key := ng.normalized(rawKey)
_, err := ng.kapi.Set(ctx, key, string(data), &etcd.SetOptions{})
return err
}
// Delete removes a certificate data from the cache under the specified key.
// If there's no such key in the cache, Delete returns nil.
func (ng *etcdv2AutoCertCache) Delete(ctx context.Context, rawKey string) error {
key := ng.normalized(rawKey)
_, err := ng.kapi.Delete(ctx, key, &etcd.DeleteOptions{})
return err
}
func (ng *etcdv2AutoCertCache) normalized(key string) string {
return ng.prefix + key
}

76
vendor/github.com/vulcand/vulcand/plugin/cacheprovider/EtcdV3CacheProvider.go generated vendored
View file

@ -1,76 +0,0 @@
package cacheprovider
import (
"context"
etcd "github.com/coreos/etcd/clientv3"
log "github.com/sirupsen/logrus"
"golang.org/x/crypto/acme/autocert"
)
func NewEtcdV3CacheProvider(client *etcd.Client, vulcanPrefix string) T {
return &etcdv3CacheProvider{
client: client,
vulcanPrefix: vulcanPrefix,
}
}
type etcdv3CacheProvider struct {
client *etcd.Client
vulcanPrefix string
autoCertCache autocert.Cache
}
func (p *etcdv3CacheProvider) GetAutoCertCache() autocert.Cache {
if p.autoCertCache == nil {
p.autoCertCache = &etcdv3AutoCertCache{
client: p.client,
prefix: p.vulcanPrefix + "/autocert_cache/",
}
}
return p.autoCertCache
}
type etcdv3AutoCertCache struct {
client *etcd.Client
prefix string
}
// Get returns a certificate data for the specified key.
// If there's no such key, Get returns ErrCacheMiss.
func (ng *etcdv3AutoCertCache) Get(ctx context.Context, rawKey string) ([]byte, error) {
key := ng.normalize(rawKey)
r, err := ng.client.Get(ctx, key)
if err != nil {
return nil, err
}
if r.Count == 0 {
return nil, autocert.ErrCacheMiss
}
if r.Count > 1 {
log.Errorf("Against all odds, multiple results returned from Etcd when looking for single key: %s. "+
"Returning the first one.", key)
}
return r.Kvs[0].Value, nil
}
// Put stores the data in the cache under the specified key.
// Inderlying implementations may use any data storage format,
// as long as the reverse operation, Get, results in the original data.
func (ng *etcdv3AutoCertCache) Put(ctx context.Context, rawKey string, data []byte) error {
key := ng.normalize(rawKey)
_, err := ng.client.Put(ctx, key, string(data))
return err
}
// Delete removes a certificate data from the cache under the specified key.
// If there's no such key in the cache, Delete returns nil.
func (ng *etcdv3AutoCertCache) Delete(ctx context.Context, rawKey string) error {
key := ng.normalize(rawKey)
_, err := ng.client.Delete(ctx, key)
return err
}
func (ng *etcdv3AutoCertCache) normalize(rawKey string) string {
return ng.prefix + rawKey
}

61
vendor/github.com/vulcand/vulcand/plugin/cacheprovider/MemCacheProvider.go generated vendored
View file

@ -1,61 +0,0 @@
package cacheprovider
import (
"context"
"sync"
"golang.org/x/crypto/acme/autocert"
)
func NewMemCacheProvider() T {
return &memCacheProvider{}
}
type memCacheProvider struct {
autocertCache autocert.Cache
}
func (p *memCacheProvider) GetAutoCertCache() autocert.Cache {
if p.autocertCache == nil {
p.autocertCache = &memAutoCertCache{
kv: make(map[string][]byte),
}
}
return p.autocertCache
}
type memAutoCertCache struct {
kv map[string][]byte
mtx sync.Mutex
}
// Get returns a certificate data for the specified key.
// If there's no such key, Get returns ErrCacheMiss.
func (ng *memAutoCertCache) Get(ctx context.Context, key string) ([]byte, error) {
ng.mtx.Lock()
defer ng.mtx.Unlock()
val, ok := ng.kv[key]
if ok {
return val, nil
}
return nil, autocert.ErrCacheMiss
}
// Put stores the data in the cache under the specified key.
// Inderlying implementations may use any data storage format,
// as long as the reverse operation, Get, results in the original data.
func (ng *memAutoCertCache) Put(ctx context.Context, key string, data []byte) error {
ng.mtx.Lock()
defer ng.mtx.Unlock()
ng.kv[key] = data
return nil
}
// Delete removes a certificate data from the cache under the specified key.
// If there's no such key in the cache, Delete returns nil.
func (ng *memAutoCertCache) Delete(ctx context.Context, key string) error {
ng.mtx.Lock()
defer ng.mtx.Unlock()
delete(ng.kv, key)
return nil
}

11
vendor/github.com/vulcand/vulcand/plugin/cacheprovider/NoOpCacheProvider.go generated vendored
View file

@ -1,11 +0,0 @@
package cacheprovider
import "golang.org/x/crypto/acme/autocert"
type noOpCacheProvider struct{}
func (*noOpCacheProvider) GetAutoCertCache() autocert.Cache { return nil }
func NoOp() T {
return &noOpCacheProvider{}
}

178
vendor/github.com/vulcand/vulcand/plugin/middleware.go generated vendored
View file

@ -1,178 +0,0 @@
package plugin
import (
"encoding/json"
"fmt"
"net/http"
"reflect"
"github.com/codegangsta/cli"
"github.com/vulcand/oxy/forward"
"github.com/vulcand/oxy/roundrobin"
"github.com/vulcand/route"
"github.com/vulcand/vulcand/conntracker"
"github.com/vulcand/vulcand/plugin/cacheprovider"
"github.com/vulcand/vulcand/router"
)
// Middleware specification, used to construct new middlewares and plug them into CLI API and backends
type MiddlewareSpec struct {
Type string
// Reader function that returns a middleware from another middleware structure
FromOther interface{}
// Flags for CLI tool to generate interface
CliFlags []cli.Flag
// Function that construtcs a middleware from CLI parameters
FromCli CliReader
}
func (ms *MiddlewareSpec) FromJSON(data []byte) (Middleware, error) {
// Get a function's type
fnType := reflect.TypeOf(ms.FromOther)
// Create a pointer to the function's first argument
ptr := reflect.New(fnType.In(0)).Interface()
err := json.Unmarshal(data, &ptr)
if err != nil {
return nil, fmt.Errorf("failed to decode %T from JSON, error: %s", ptr, err)
}
// Now let's call the function to produce a middleware
fnVal := reflect.ValueOf(ms.FromOther)
results := fnVal.Call([]reflect.Value{reflect.ValueOf(ptr).Elem()})
m, out := results[0].Interface(), results[1].Interface()
if out != nil {
return nil, out.(error)
}
return m.(Middleware), nil
}
type Middleware interface {
NewHandler(http.Handler) (http.Handler, error)
}
// Reader constructs the middleware from the CLI interface
type CliReader func(c *cli.Context) (Middleware, error)
// Function that returns middleware spec by it's type
type SpecGetter func(string) *MiddlewareSpec
// Holds a bunch of Listeners a frontend might have.
// This allows callers to consolidate all their listeners in one convenient struct.
type FrontendListeners struct {
ConnTck forward.UrlForwardingStateListener
RbRewriteListener roundrobin.RequestRewriteListener
RrRewriteListener roundrobin.RequestRewriteListener
}
// Registry contains currently registered middlewares and used to support pluggable middlewares across all modules of the vulcand
type Registry struct {
specs []*MiddlewareSpec
notFound Middleware
router router.Router
incomingConnectionTracker conntracker.ConnectionTracker
frontendListeners FrontendListeners
cacheProvider cacheprovider.T
}
func NewRegistry() *Registry {
return &Registry{
specs: []*MiddlewareSpec{},
router: route.NewMux(),
}
}
func (r *Registry) AddSpec(s *MiddlewareSpec) error {
if s == nil {
return fmt.Errorf("spec can not be nil")
}
if r.GetSpec(s.Type) != nil {
return fmt.Errorf("middleware of type %s already registered", s.Type)
}
if err := verifySignature(s.FromOther); err != nil {
return err
}
r.specs = append(r.specs, s)
return nil
}
func (r *Registry) GetSpec(middlewareType string) *MiddlewareSpec {
for _, s := range r.specs {
if s.Type == middlewareType {
return s
}
}
return nil
}
func (r *Registry) GetSpecs() []*MiddlewareSpec {
return r.specs
}
func (r *Registry) AddNotFoundMiddleware(notFound Middleware) error {
r.notFound = notFound
return nil
}
func (r *Registry) GetNotFoundMiddleware() Middleware {
return r.notFound
}
func (r *Registry) SetRouter(router router.Router) error {
r.router = router
return nil
}
func (r *Registry) GetRouter() router.Router {
return r.router
}
func (r *Registry) SetIncomingConnectionTracker(connTracker conntracker.ConnectionTracker) error {
r.incomingConnectionTracker = connTracker
return nil
}
func (r *Registry) GetIncomingConnectionTracker() conntracker.ConnectionTracker {
return r.incomingConnectionTracker
}
func (r *Registry) GetFrontendListeners() FrontendListeners {
return r.frontendListeners
}
func (r *Registry) SetFrontendListeners(frontendListeners FrontendListeners) error {
r.frontendListeners = frontendListeners
return nil
}
func (r *Registry) GetCacheProvider() cacheprovider.T {
return r.cacheProvider
}
func (r *Registry) SetCacheProvider(cacheprovider cacheprovider.T) error {
r.cacheProvider = cacheprovider
return nil
}
func verifySignature(fn interface{}) error {
t := reflect.TypeOf(fn)
if t == nil || t.Kind() != reflect.Func {
return fmt.Errorf("expected function, got %s", t)
}
if t.NumIn() != 1 {
return fmt.Errorf("expected function with one input argument, got %d", t.NumIn())
}
if t.In(0).Kind() != reflect.Struct {
return fmt.Errorf("function argument should be struct, got %s", t.In(0).Kind())
}
if t.NumOut() != 2 {
return fmt.Errorf("function should return 2 values, got %d", t.NumOut())
}
if !t.Out(0).AssignableTo(reflect.TypeOf((*Middleware)(nil)).Elem()) {
return fmt.Errorf("function first return value should be Middleware got, %s", t.Out(0))
}
if !t.Out(1).AssignableTo(reflect.TypeOf((*error)(nil)).Elem()) {
return fmt.Errorf("function second return value should be error got, %s", t.Out(1))
}
return nil
}

205
vendor/github.com/vulcand/vulcand/plugin/rewrite/rewrite.go generated vendored
View file

@ -1,205 +0,0 @@
package rewrite
import (
"bytes"
"fmt"
"io"
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
"github.com/codegangsta/cli"
log "github.com/sirupsen/logrus"
"github.com/vulcand/oxy/utils"
"github.com/vulcand/vulcand/plugin"
)
const Type = "rewrite"
type Rewrite struct {
Regexp string
Replacement string
RewriteBody bool
Redirect bool
}
func NewRewrite(regex, replacement string, rewriteBody, redirect bool) (*Rewrite, error) {
return &Rewrite{regex, replacement, rewriteBody, redirect}, nil
}
func (rw *Rewrite) NewHandler(next http.Handler) (http.Handler, error) {
return newRewriteHandler(next, rw)
}
func (rw *Rewrite) String() string {
return fmt.Sprintf("regexp=%v, replacement=%v, rewriteBody=%v, redirect=%v",
rw.Regexp, rw.Replacement, rw.RewriteBody, rw.Redirect)
}
type rewriteHandler struct {
next http.Handler
errHandler utils.ErrorHandler
regexp *regexp.Regexp
replacement string
rewriteBody bool
redirect bool
}
func newRewriteHandler(next http.Handler, spec *Rewrite) (*rewriteHandler, error) {
re, err := regexp.Compile(spec.Regexp)
if err != nil {
return nil, err
}
return &rewriteHandler{
regexp: re,
replacement: spec.Replacement,
rewriteBody: spec.RewriteBody,
redirect: spec.Redirect,
next: next,
errHandler: utils.DefaultHandler,
}, nil
}
func (rw *rewriteHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
oldURL := rawURL(req)
// only continue if the Regexp param matches the URL
if !rw.regexp.MatchString(oldURL) {
rw.next.ServeHTTP(w, req)
return
}
// apply a rewrite regexp to the URL
newURL := rw.regexp.ReplaceAllString(oldURL, rw.replacement)
// replace any variables that may be in there
rewrittenURL := &bytes.Buffer{}
if err := ApplyString(newURL, rewrittenURL, req); err != nil {
rw.errHandler.ServeHTTP(w, req, err)
return
}
// parse the rewritten URL and replace request URL with it
parsedURL, err := url.Parse(rewrittenURL.String())
if err != nil {
rw.errHandler.ServeHTTP(w, req, err)
return
}
if rw.redirect && newURL != oldURL {
(&redirectHandler{u: parsedURL}).ServeHTTP(w, req)
return
}
req.URL = parsedURL
// make sure the request URI corresponds the rewritten URL
req.RequestURI = req.URL.RequestURI()
if !rw.rewriteBody {
rw.next.ServeHTTP(w, req)
return
}
bw := &bufferWriter{header: make(http.Header), buffer: &bytes.Buffer{}}
newBody := &bytes.Buffer{}
rw.next.ServeHTTP(bw, req)
if err := Apply(bw.buffer, newBody, req); err != nil {
log.Errorf("While rewriting response body for '%s': %v", req.RequestURI, err)
}
utils.CopyHeaders(w.Header(), bw.Header())
w.Header().Set("Content-Length", strconv.Itoa(newBody.Len()))
w.WriteHeader(bw.code)
io.Copy(w, newBody)
}
func FromOther(rw Rewrite) (plugin.Middleware, error) {
return NewRewrite(rw.Regexp, rw.Replacement, rw.RewriteBody, rw.Redirect)
}
func FromCli(c *cli.Context) (plugin.Middleware, error) {
return NewRewrite(c.String("regexp"), c.String("replacement"), c.Bool("rewriteBody"), c.Bool("redirect"))
}
func GetSpec() *plugin.MiddlewareSpec {
return &plugin.MiddlewareSpec{
Type: Type,
FromOther: FromOther,
FromCli: FromCli,
CliFlags: CliFlags(),
}
}
func CliFlags() []cli.Flag {
return []cli.Flag{
cli.StringFlag{
Name: "regexp",
Usage: "regex to match against http request path",
},
cli.StringFlag{
Name: "replacement",
Usage: "replacement text into which regex expansions are inserted",
},
cli.BoolFlag{
Name: "rewriteBody",
Usage: "if provided, response body is treated as as template and all variables in it are replaced",
},
cli.BoolFlag{
Name: "redirect",
Usage: "if provided, request is redirected to the rewritten URL",
},
}
}
func rawURL(request *http.Request) string {
scheme := "http"
if request.TLS != nil || isXForwardedHTTPS(request) {
scheme = "https"
}
return strings.Join([]string{scheme, "://", request.Host, request.RequestURI}, "")
}
func isXForwardedHTTPS(request *http.Request) bool {
xForwardedProto := request.Header.Get("X-Forwarded-Proto")
return len(xForwardedProto) > 0 && xForwardedProto == "https"
}
type redirectHandler struct {
u *url.URL
}
func (f *redirectHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
w.Header().Set("Location", f.u.String())
w.WriteHeader(http.StatusFound)
w.Write([]byte(http.StatusText(http.StatusFound)))
}
type bufferWriter struct {
header http.Header
code int
buffer *bytes.Buffer
}
func (b *bufferWriter) Close() error {
return nil
}
func (b *bufferWriter) Header() http.Header {
return b.header
}
func (b *bufferWriter) Write(buf []byte) (int, error) {
return b.buffer.Write(buf)
}
// WriteHeader sets rw.Code.
func (b *bufferWriter) WriteHeader(code int) {
b.code = code
}

44
vendor/github.com/vulcand/vulcand/plugin/rewrite/template.go generated vendored
View file

@ -1,44 +0,0 @@
package rewrite
import (
"io"
"io/ioutil"
"net/http"
"text/template"
)
// data represents template data that is available to use in templates.
type data struct {
Request *http.Request
}
// Apply reads a template string from the provided reader, applies variables
// from the provided request object to it and writes the result into
// the provided writer.
//
// Template is standard Go's http://golang.org/pkg/text/template/.
func Apply(in io.Reader, out io.Writer, request *http.Request) error {
body, err := ioutil.ReadAll(in)
if err != nil {
return err
}
return ApplyString(string(body), out, request)
}
// ApplyString applies variables from the provided request object to the provided
// template string and writes the result into the provided writer.
//
// Template is standard Go's http://golang.org/pkg/text/template/.
func ApplyString(in string, out io.Writer, request *http.Request) error {
t, err := template.New("t").Parse(in)
if err != nil {
return err
}
if err = t.Execute(out, data{request}); err != nil {
return err
}
return nil
}

26
vendor/github.com/vulcand/vulcand/router/router.go generated vendored
View file

@ -1,26 +0,0 @@
package router
import "net/http"
// This interface captures all routing functionality required by vulcan.
// The routing functionality mainly comes from "github.com/vulcand/route",
type Router interface {
// Sets the not-found handler (this handler is called when no other handlers/routes in the routing library match
SetNotFound(http.Handler) error
// Gets the not-found handler that is currently in use by this router.
GetNotFound() http.Handler
// Validates whether this is an acceptable route expression
IsValid(string) bool
// Adds a new route->handler combination. The route is a string which provides the routing expression. http.Handler is called when this expression matches a request.
Handle(string, http.Handler) error
// Removes a route. The http.Handler associated with it, will be discarded.
Remove(string) error
// ServiceHTTP is the http.Handler implementation that allows callers to route their calls to sub-http.Handlers based on route matches.
ServeHTTP(http.ResponseWriter, *http.Request)
}