Remove urfave/cli from libpod

This is the final cleanup to remove urfave/sli from libpod.  Removed
old, disabled tests that have not been run in over a year.

Signed-off-by: baude <bbaude@redhat.com>

18 files changed, 1 insertions, 5219 deletions

diff --git a/Makefile b/Makefile
index 08dd586be..dfbe47171 100644
--- a/Makefile
+++ b/Makefile
@@ -105,11 +105,6 @@ gofmt: ## Verify the source code gofmt
 	find . -name '*.go' ! -path './vendor/*' -exec gofmt -s -w {} \+
 	git diff --exit-code
 
-test/bin2img/bin2img: .gopathok $(wildcard test/bin2img/*.go)
-	$(GO) build -ldflags '$(LDFLAGS)' -tags "$(BUILDTAGS) containers_image_ostree_stub" -o $@ $(PROJECT)/test/bin2img
-
-test/copyimg/copyimg: .gopathok $(wildcard test/copyimg/*.go)
-	$(GO) build -ldflags '$(LDFLAGS)' -tags "$(BUILDTAGS) containers_image_ostree_stub" -o $@ $(PROJECT)/test/copyimg
 
 test/checkseccomp/checkseccomp: .gopathok $(wildcard test/checkseccomp/*.go)
 	$(GO) build -ldflags '$(LDFLAGS)' -tags "$(BUILDTAGS) containers_image_ostree_stub" -o $@ $(PROJECT)/test/checkseccomp
@@ -140,9 +135,7 @@ clean: ## Clean artifacts
 		_output \
 		bin \
 		build \
-		test/bin2img/bin2img \
 		test/checkseccomp/checkseccomp \
-		test/copyimg/copyimg \
 		test/goecho/goecho \
 		test/testdata/redis-image \
 		cmd/podman/varlink/iopodman.go \
@@ -210,7 +203,7 @@ binaries: varlink_generate podman podman-remote  ## Build podman
 install.catatonit:
 	./hack/install_catatonit.sh
 
-test-binaries: test/bin2img/bin2img test/copyimg/copyimg test/checkseccomp/checkseccomp test/goecho/goecho install.catatonit
+test-binaries: test/checkseccomp/checkseccomp test/goecho/goecho install.catatonit
 
 MANPAGES_MD ?= $(wildcard docs/*.md pkg/*/docs/*.md)
 MANPAGES ?= $(MANPAGES_MD:%.md=%)
diff --git a/cmd/podman/common_test.go b/cmd/podman/common_test.go
index 042568d7e..a24173003 100644
--- a/cmd/podman/common_test.go
+++ b/cmd/podman/common_test.go
@@ -3,34 +3,8 @@ package main
 import (
 	"os/user"
 	"testing"
-
-	"flag"
-
-	"github.com/urfave/cli"
 )
 
-func TestGetStore(t *testing.T) {
-	t.Skip("FIX THIS!")
-
-	//cmd/podman/common_test.go:27: cannot use c (type *cli.Context) as type *libkpod.Config in argument to getStore
-
-	// Make sure the tests are running as root
-	skipTestIfNotRoot(t)
-
-	set := flag.NewFlagSet("test", 0)
-	globalSet := flag.NewFlagSet("test", 0)
-	globalSet.String("root", "", "path to the root directory in which data, including images,  is stored")
-	globalCtx := cli.NewContext(nil, globalSet, nil)
-	command := cli.Command{Name: "imagesCommand"}
-	c := cli.NewContext(nil, set, globalCtx)
-	c.Command = command
-
-	//_, err := getStore(c)
-	//if err != nil {
-	//t.Error(err)
-	//}
-}
-
 func skipTestIfNotRoot(t *testing.T) {
 	u, err := user.Current()
 	if err != nil {
diff --git a/test/bin2img/bin2img.go b/test/bin2img/bin2img.go
deleted file mode 100644
index ed493dcc1..000000000
--- a/test/bin2img/bin2img.go
+++ /dev/null
@@ -1,229 +0,0 @@
-package main
-
-import (
-	"archive/tar"
-	"bytes"
-	"context"
-	"encoding/json"
-	"io"
-	"os"
-	"runtime"
-
-	"github.com/containers/image/pkg/blobinfocache"
-	"github.com/containers/image/storage"
-	"github.com/containers/image/types"
-	sstorage "github.com/containers/storage"
-	"github.com/containers/storage/pkg/reexec"
-	digest "github.com/opencontainers/go-digest"
-	specs "github.com/opencontainers/image-spec/specs-go"
-	"github.com/opencontainers/image-spec/specs-go/v1"
-	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
-)
-
-func main() {
-	if reexec.Init() {
-		return
-	}
-
-	app := cli.NewApp()
-	app.Name = "bin2img"
-	app.Usage = "barebones image builder"
-	app.Version = "0.0.1"
-
-	app.Flags = []cli.Flag{
-		cli.BoolFlag{
-			Name:  "debug",
-			Usage: "turn on debug logging",
-		},
-		cli.StringFlag{
-			Name:  "root",
-			Usage: "graph root directory",
-		},
-		cli.StringFlag{
-			Name:  "runroot",
-			Usage: "run root directory",
-		},
-		cli.StringFlag{
-			Name:  "storage-driver",
-			Usage: "storage driver",
-		},
-		cli.StringSliceFlag{
-			Name:  "storage-opt",
-			Usage: "storage option",
-		},
-		cli.StringFlag{
-			Name:  "image-name",
-			Usage: "set image name",
-			Value: "kubernetes/pause",
-		},
-		cli.StringFlag{
-			Name:  "source-binary",
-			Usage: "source binary",
-			Value: "../../pause/pause",
-		},
-		cli.StringFlag{
-			Name:  "image-binary",
-			Usage: "image binary",
-			Value: "/pause",
-		},
-	}
-
-	app.Action = func(c *cli.Context) error {
-		debug := c.GlobalBool("debug")
-		rootDir := c.GlobalString("root")
-		runrootDir := c.GlobalString("runroot")
-		storageDriver := c.GlobalString("storage-driver")
-		storageOptions := c.GlobalStringSlice("storage-opt")
-		imageName := c.GlobalString("image-name")
-		sourceBinary := c.GlobalString("source-binary")
-		imageBinary := c.GlobalString("image-binary")
-
-		if debug {
-			logrus.SetLevel(logrus.DebugLevel)
-		} else {
-			logrus.SetLevel(logrus.ErrorLevel)
-		}
-		if rootDir == "" && runrootDir != "" {
-			logrus.Errorf("must set --root and --runroot, or neither")
-			os.Exit(1)
-		}
-		if rootDir != "" && runrootDir == "" {
-			logrus.Errorf("must set --root and --runroot, or neither")
-			os.Exit(1)
-		}
-		storeOptions := sstorage.DefaultStoreOptions
-		if rootDir != "" && runrootDir != "" {
-			storeOptions.GraphDriverName = storageDriver
-			storeOptions.GraphDriverOptions = storageOptions
-			storeOptions.GraphRoot = rootDir
-			storeOptions.RunRoot = runrootDir
-		}
-		store, err := sstorage.GetStore(storeOptions)
-		if err != nil {
-			logrus.Errorf("error opening storage: %v", err)
-			os.Exit(1)
-		}
-		defer func() {
-			_, _ = store.Shutdown(false)
-		}()
-
-		layerBuffer := &bytes.Buffer{}
-		binary, err := os.Open(sourceBinary)
-		if err != nil {
-			logrus.Errorf("error opening image binary: %v", err)
-			os.Exit(1)
-		}
-		binInfo, err := binary.Stat()
-		if err != nil {
-			logrus.Errorf("error statting image binary: %v", err)
-			os.Exit(1)
-		}
-		archive := tar.NewWriter(layerBuffer)
-		err = archive.WriteHeader(&tar.Header{
-			Name:     imageBinary,
-			Size:     binInfo.Size(),
-			Mode:     0555,
-			ModTime:  binInfo.ModTime(),
-			Typeflag: tar.TypeReg,
-			Uname:    "root",
-			Gname:    "root",
-		})
-		if err != nil {
-			logrus.Errorf("error writing archive header: %v", err)
-			os.Exit(1)
-		}
-		_, err = io.Copy(archive, binary)
-		if err != nil {
-			logrus.Errorf("error archiving image binary: %v", err)
-			os.Exit(1)
-		}
-		archive.Close()
-		binary.Close()
-		layerInfo := types.BlobInfo{
-			Digest: digest.Canonical.FromBytes(layerBuffer.Bytes()),
-			Size:   int64(layerBuffer.Len()),
-		}
-
-		ref, err := storage.Transport.ParseStoreReference(store, imageName)
-		if err != nil {
-			logrus.Errorf("error parsing image name: %v", err)
-			os.Exit(1)
-		}
-		ctx := context.TODO()
-		img, err := ref.NewImageDestination(ctx, nil)
-		if err != nil {
-			logrus.Errorf("error preparing to write image: %v", err)
-			os.Exit(1)
-		}
-		defer img.Close()
-		layer, err := img.PutBlob(ctx, layerBuffer, layerInfo, blobinfocache.NewMemoryCache(), false)
-		if err != nil {
-			logrus.Errorf("error preparing to write image: %v", err)
-			os.Exit(1)
-		}
-		config := &v1.Image{
-			Architecture: runtime.GOARCH,
-			OS:           runtime.GOOS,
-			Config: v1.ImageConfig{
-				User:       "root",
-				Entrypoint: []string{imageBinary},
-			},
-			RootFS: v1.RootFS{
-				Type: "layers",
-				DiffIDs: []digest.Digest{
-					layer.Digest,
-				},
-			},
-		}
-		cbytes, err := json.Marshal(config)
-		if err != nil {
-			logrus.Errorf("error encoding configuration: %v", err)
-			os.Exit(1)
-		}
-		configInfo := types.BlobInfo{
-			Digest: digest.Canonical.FromBytes(cbytes),
-			Size:   int64(len(cbytes)),
-		}
-		configInfo, err = img.PutBlob(ctx, bytes.NewBuffer(cbytes), configInfo, blobinfocache.NewMemoryCache(), false)
-		if err != nil {
-			logrus.Errorf("error saving configuration: %v", err)
-			os.Exit(1)
-		}
-		manifest := &v1.Manifest{
-			Versioned: specs.Versioned{
-				SchemaVersion: 2,
-			},
-			Config: v1.Descriptor{
-				MediaType: v1.MediaTypeImageConfig,
-				Digest:    configInfo.Digest,
-				Size:      int64(len(cbytes)),
-			},
-			Layers: []v1.Descriptor{{
-				MediaType: v1.MediaTypeImageLayer,
-				Digest:    layer.Digest,
-				Size:      layer.Size,
-			}},
-		}
-		mbytes, err := json.Marshal(manifest)
-		if err != nil {
-			logrus.Errorf("error encoding manifest: %v", err)
-			os.Exit(1)
-		}
-		err = img.PutManifest(ctx, mbytes)
-		if err != nil {
-			logrus.Errorf("error saving manifest: %v", err)
-			os.Exit(1)
-		}
-		err = img.Commit(ctx)
-		if err != nil {
-			logrus.Errorf("error committing image: %v", err)
-			os.Exit(1)
-		}
-		return nil
-	}
-
-	if err := app.Run(os.Args); err != nil {
-		logrus.Fatal(err)
-	}
-}
diff --git a/test/copyimg/copyimg.go b/test/copyimg/copyimg.go
deleted file mode 100644
index da00964fa..000000000
--- a/test/copyimg/copyimg.go
+++ /dev/null
@@ -1,204 +0,0 @@
-package main
-
-import (
-	"context"
-	"os"
-
-	"github.com/containers/image/copy"
-	"github.com/containers/image/signature"
-	"github.com/containers/image/storage"
-	"github.com/containers/image/transports/alltransports"
-	"github.com/containers/image/types"
-	sstorage "github.com/containers/storage"
-	"github.com/containers/storage/pkg/reexec"
-	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
-)
-
-func main() {
-	if reexec.Init() {
-		return
-	}
-
-	app := cli.NewApp()
-	app.Name = "copyimg"
-	app.Usage = "barebones image copier"
-	app.Version = "0.0.1"
-
-	app.Flags = []cli.Flag{
-		cli.BoolFlag{
-			Name:  "debug",
-			Usage: "turn on debug logging",
-		},
-		cli.StringFlag{
-			Name:  "root",
-			Usage: "graph root directory",
-		},
-		cli.StringFlag{
-			Name:  "runroot",
-			Usage: "run root directory",
-		},
-		cli.StringFlag{
-			Name:  "storage-driver",
-			Usage: "storage driver",
-		},
-		cli.StringSliceFlag{
-			Name:  "storage-opt",
-			Usage: "storage option",
-		},
-		cli.StringFlag{
-			Name:  "signature-policy",
-			Usage: "signature policy",
-		},
-		cli.StringFlag{
-			Name:  "image-name",
-			Usage: "set image name",
-		},
-		cli.StringFlag{
-			Name:  "add-name",
-			Usage: "name to add to image",
-		},
-		cli.StringFlag{
-			Name:  "import-from",
-			Usage: "import source",
-		},
-		cli.StringFlag{
-			Name:  "export-to",
-			Usage: "export target",
-		},
-	}
-
-	app.Action = func(c *cli.Context) error {
-		var store sstorage.Store
-		var ref, importRef, exportRef types.ImageReference
-		var err error
-
-		debug := c.GlobalBool("debug")
-		rootDir := c.GlobalString("root")
-		runrootDir := c.GlobalString("runroot")
-		storageDriver := c.GlobalString("storage-driver")
-		storageOptions := c.GlobalStringSlice("storage-opt")
-		signaturePolicy := c.GlobalString("signature-policy")
-		imageName := c.GlobalString("image-name")
-		addName := c.GlobalString("add-name")
-		importFrom := c.GlobalString("import-from")
-		exportTo := c.GlobalString("export-to")
-
-		if debug {
-			logrus.SetLevel(logrus.DebugLevel)
-		} else {
-			logrus.SetLevel(logrus.ErrorLevel)
-		}
-
-		if imageName != "" {
-			if rootDir == "" && runrootDir != "" {
-				logrus.Errorf("must set --root and --runroot, or neither")
-				os.Exit(1)
-			}
-			if rootDir != "" && runrootDir == "" {
-				logrus.Errorf("must set --root and --runroot, or neither")
-				os.Exit(1)
-			}
-			storeOptions := sstorage.DefaultStoreOptions
-			if rootDir != "" && runrootDir != "" {
-				storeOptions.GraphDriverName = storageDriver
-				storeOptions.GraphDriverOptions = storageOptions
-				storeOptions.GraphRoot = rootDir
-				storeOptions.RunRoot = runrootDir
-			}
-			store, err = sstorage.GetStore(storeOptions)
-			if err != nil {
-				logrus.Errorf("error opening storage: %v", err)
-				os.Exit(1)
-			}
-			defer func() {
-				_, _ = store.Shutdown(false)
-			}()
-
-			storage.Transport.SetStore(store)
-			ref, err = storage.Transport.ParseStoreReference(store, imageName)
-			if err != nil {
-				logrus.Errorf("error parsing image name: %v", err)
-				os.Exit(1)
-			}
-		}
-
-		systemContext := types.SystemContext{
-			SignaturePolicyPath: signaturePolicy,
-		}
-		policy, err := signature.DefaultPolicy(&systemContext)
-		if err != nil {
-			logrus.Errorf("error loading signature policy: %v", err)
-			os.Exit(1)
-		}
-		policyContext, err := signature.NewPolicyContext(policy)
-		if err != nil {
-			logrus.Errorf("error loading signature policy: %v", err)
-			os.Exit(1)
-		}
-		defer func() {
-			_ = policyContext.Destroy()
-		}()
-		options := &copy.Options{}
-
-		if importFrom != "" {
-			importRef, err = alltransports.ParseImageName(importFrom)
-			if err != nil {
-				logrus.Errorf("error parsing image name %v: %v", importFrom, err)
-				os.Exit(1)
-			}
-		}
-
-		if exportTo != "" {
-			exportRef, err = alltransports.ParseImageName(exportTo)
-			if err != nil {
-				logrus.Errorf("error parsing image name %v: %v", exportTo, err)
-				os.Exit(1)
-			}
-		}
-
-		ctx := context.TODO()
-		if imageName != "" {
-			if importFrom != "" {
-				_, err = copy.Image(ctx, policyContext, ref, importRef, options)
-				if err != nil {
-					logrus.Errorf("error importing %s: %v", importFrom, err)
-					os.Exit(1)
-				}
-			}
-			if addName != "" {
-				destImage, err1 := storage.Transport.GetStoreImage(store, ref)
-				if err1 != nil {
-					logrus.Errorf("error finding image: %v", err1)
-					os.Exit(1)
-				}
-				names := append(destImage.Names, imageName, addName)
-				err = store.SetNames(destImage.ID, names)
-				if err != nil {
-					logrus.Errorf("error adding name to %s: %v", imageName, err)
-					os.Exit(1)
-				}
-			}
-			if exportTo != "" {
-				_, err = copy.Image(ctx, policyContext, exportRef, ref, options)
-				if err != nil {
-					logrus.Errorf("error exporting %s: %v", exportTo, err)
-					os.Exit(1)
-				}
-			}
-		} else {
-			if importFrom != "" && exportTo != "" {
-				_, err = copy.Image(ctx, policyContext, exportRef, importRef, options)
-				if err != nil {
-					logrus.Errorf("error copying %s to %s: %v", importFrom, exportTo, err)
-					os.Exit(1)
-				}
-			}
-		}
-		return nil
-	}
-
-	if err := app.Run(os.Args); err != nil {
-		logrus.Fatal(err)
-	}
-}
diff --git a/vendor.conf b/vendor.conf
index 116120aa8..911b83325 100644
--- a/vendor.conf
+++ b/vendor.conf
@@ -68,8 +68,6 @@ github.com/stretchr/testify v1.3.0
 github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
 github.com/tchap/go-patricia v2.2.6
 github.com/ulule/deepcopier ca99b135e50f526fde9cd88705f0ff2f3f95b77c
-# TODO: urfave/cli is not active anymore. We should transition to another library.
-github.com/urfave/cli b67dcf995b6a7b7f14fad5fcb7cc5441b05e814b
 github.com/vbatts/tar-split v0.11.1
 github.com/vishvananda/netlink v1.0.0
 github.com/vishvananda/netns 13995c7128ccc8e51e9a6bd2b551020a27180abd
diff --git a/vendor/github.com/urfave/cli/LICENSE b/vendor/github.com/urfave/cli/LICENSE
deleted file mode 100644
index 42a597e29..000000000
--- a/vendor/github.com/urfave/cli/LICENSE
+++ /dev/null
@@ -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.
diff --git a/vendor/github.com/urfave/cli/README.md b/vendor/github.com/urfave/cli/README.md
deleted file mode 100644
index f2baef4f0..000000000
--- a/vendor/github.com/urfave/cli/README.md
+++ /dev/null
@@ -1,1526 +0,0 @@
-cli
-===
-
-[![Build Status](https://travis-ci.org/urfave/cli.svg?branch=master)](https://travis-ci.org/urfave/cli)
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/rtgk5xufi932pb2v?svg=true)](https://ci.appveyor.com/project/urfave/cli)
-[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://godoc.org/github.com/urfave/cli)
-[![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-urfave-cli)
-[![Go Report Card](https://goreportcard.com/badge/urfave/cli)](https://goreportcard.com/report/urfave/cli)
-[![top level coverage](https://gocover.io/_badge/github.com/urfave/cli?0 "top level coverage")](http://gocover.io/github.com/urfave/cli) /
-[![altsrc coverage](https://gocover.io/_badge/github.com/urfave/cli/altsrc?0 "altsrc coverage")](http://gocover.io/github.com/urfave/cli/altsrc)
-
-This is the library formerly known as `github.com/codegangsta/cli` -- Github
-will automatically redirect requests to this repository, but we recommend
-updating your references for clarity.
-
-cli is a simple, fast, and fun package for building command line apps in Go. The
-goal is to enable developers to write fast and distributable command line
-applications in an expressive way.
-
-<!-- toc -->
-
-- [Overview](#overview)
-- [Installation](#installation)
-  * [Supported platforms](#supported-platforms)
-  * [Using the `v2` branch](#using-the-v2-branch)
-  * [Pinning to the `v1` releases](#pinning-to-the-v1-releases)
-- [Getting Started](#getting-started)
-- [Examples](#examples)
-  * [Arguments](#arguments)
-  * [Flags](#flags)
-    + [Placeholder Values](#placeholder-values)
-    + [Alternate Names](#alternate-names)
-    + [Ordering](#ordering)
-    + [Values from the Environment](#values-from-the-environment)
-    + [Values from files](#values-from-files)
-    + [Values from alternate input sources (YAML, TOML, and others)](#values-from-alternate-input-sources-yaml-toml-and-others)
-    + [Precedence](#precedence)
-  * [Subcommands](#subcommands)
-  * [Subcommands categories](#subcommands-categories)
-  * [Exit code](#exit-code)
-  * [Bash Completion](#bash-completion)
-    + [Enabling](#enabling)
-    + [Distribution](#distribution)
-    + [Customization](#customization)
-  * [Generated Help Text](#generated-help-text)
-    + [Customization](#customization-1)
-  * [Version Flag](#version-flag)
-    + [Customization](#customization-2)
-    + [Full API Example](#full-api-example)
-  * [Combining short Bool options](#combining-short-bool-options)
-- [Contribution Guidelines](#contribution-guidelines)
-
-<!-- tocstop -->
-
-## Overview
-
-Command line apps are usually so tiny that there is absolutely no reason why
-your code should *not* be self-documenting. Things like generating help text and
-parsing command flags/options should not hinder productivity when writing a
-command line app.
-
-**This is where cli comes into play.** cli makes command line programming fun,
-organized, and expressive!
-
-## Installation
-
-Make sure you have a working Go environment.  Go version 1.2+ is supported.  [See
-the install instructions for Go](http://golang.org/doc/install.html).
-
-To install cli, simply run:
-```
-$ go get github.com/urfave/cli
-```
-
-Make sure your `PATH` includes the `$GOPATH/bin` directory so your commands can
-be easily used:
-```
-export PATH=$PATH:$GOPATH/bin
-```
-
-### Supported platforms
-
-cli is tested against multiple versions of Go on Linux, and against the latest
-released version of Go on OS X and Windows.  For full details, see
-[`./.travis.yml`](./.travis.yml) and [`./appveyor.yml`](./appveyor.yml).
-
-### Using the `v2` branch
-
-**Warning**: The `v2` branch is currently unreleased and considered unstable.
-
-There is currently a long-lived branch named `v2` that is intended to land as
-the new `master` branch once development there has settled down.  The current
-`master` branch (mirrored as `v1`) is being manually merged into `v2` on
-an irregular human-based schedule, but generally if one wants to "upgrade" to
-`v2` *now* and accept the volatility (read: "awesomeness") that comes along with
-that, please use whatever version pinning of your preference, such as via
-`gopkg.in`:
-
-```
-$ go get gopkg.in/urfave/cli.v2
-```
-
-``` go
-...
-import (
-  "gopkg.in/urfave/cli.v2" // imports as package "cli"
-)
-...
-```
-
-### Pinning to the `v1` releases
-
-Similarly to the section above describing use of the `v2` branch, if one wants
-to avoid any unexpected compatibility pains once `v2` becomes `master`, then
-pinning to `v1` is an acceptable option, e.g.:
-
-```
-$ go get gopkg.in/urfave/cli.v1
-```
-
-``` go
-...
-import (
-  "gopkg.in/urfave/cli.v1" // imports as package "cli"
-)
-...
-```
-
-This will pull the latest tagged `v1` release (e.g. `v1.18.1` at the time of writing).
-
-## Getting Started
-
-One of the philosophies behind cli is that an API should be playful and full of
-discovery. So a cli app can be as little as one line of code in `main()`.
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "A new cli application"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  err := cli.NewApp().Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-This app will run and show help text, but is not very useful. Let's give an
-action to execute and some help documentation:
-
-<!-- {
-  "output": "boom! I say!"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-  app.Name = "boom"
-  app.Usage = "make an explosive entrance"
-  app.Action = func(c *cli.Context) error {
-    fmt.Println("boom! I say!")
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Running this already gives you a ton of functionality, plus support for things
-like subcommands and flags, which are covered below.
-
-## Examples
-
-Being a programmer can be a lonely job. Thankfully by the power of automation
-that is not the case! Let's create a greeter app to fend off our demons of
-loneliness!
-
-Start by creating a directory named `greet`, and within it, add a file,
-`greet.go` with the following code in it:
-
-<!-- {
-  "output": "Hello friend!"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-  app.Name = "greet"
-  app.Usage = "fight the loneliness!"
-  app.Action = func(c *cli.Context) error {
-    fmt.Println("Hello friend!")
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Install our command to the `$GOPATH/bin` directory:
-
-```
-$ go install
-```
-
-Finally run our new command:
-
-```
-$ greet
-Hello friend!
-```
-
-cli also generates neat help text:
-
-```
-$ greet help
-NAME:
-    greet - fight the loneliness!
-
-USAGE:
-    greet [global options] command [command options] [arguments...]
-
-VERSION:
-    0.0.0
-
-COMMANDS:
-    help, h  Shows a list of commands or help for one command
-
-GLOBAL OPTIONS
-    --version Shows version information
-```
-
-### Arguments
-
-You can lookup arguments by calling the `Args` function on `cli.Context`, e.g.:
-
-<!-- {
-  "output": "Hello \""
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Action = func(c *cli.Context) error {
-    fmt.Printf("Hello %q", c.Args().Get(0))
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-### Flags
-
-Setting and querying flags is simple.
-
-<!-- {
-  "output": "Hello Nefertiti"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "lang",
-      Value: "english",
-      Usage: "language for the greeting",
-    },
-  }
-
-  app.Action = func(c *cli.Context) error {
-    name := "Nefertiti"
-    if c.NArg() > 0 {
-      name = c.Args().Get(0)
-    }
-    if c.String("lang") == "spanish" {
-      fmt.Println("Hola", name)
-    } else {
-      fmt.Println("Hello", name)
-    }
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-You can also set a destination variable for a flag, to which the content will be
-scanned.
-
-<!-- {
-  "output": "Hello someone"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-  "fmt"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  var language string
-
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name:        "lang",
-      Value:       "english",
-      Usage:       "language for the greeting",
-      Destination: &language,
-    },
-  }
-
-  app.Action = func(c *cli.Context) error {
-    name := "someone"
-    if c.NArg() > 0 {
-      name = c.Args()[0]
-    }
-    if language == "spanish" {
-      fmt.Println("Hola", name)
-    } else {
-      fmt.Println("Hello", name)
-    }
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-See full list of flags at http://godoc.org/github.com/urfave/cli
-
-#### Placeholder Values
-
-Sometimes it's useful to specify a flag's value within the usage string itself.
-Such placeholders are indicated with back quotes.
-
-For example this:
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "&#45;&#45;config FILE, &#45;c FILE"
-} -->
-```go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag{
-    cli.StringFlag{
-      Name:  "config, c",
-      Usage: "Load configuration from `FILE`",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Will result in help output like:
-
-```
---config FILE, -c FILE   Load configuration from FILE
-```
-
-Note that only the first placeholder is used. Subsequent back-quoted words will
-be left as-is.
-
-#### Alternate Names
-
-You can set alternate (or short) names for flags by providing a comma-delimited
-list for the `Name`. e.g.
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "&#45;&#45;lang value, &#45;l value.*language for the greeting.*default: \"english\""
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "lang, l",
-      Value: "english",
-      Usage: "language for the greeting",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-That flag can then be set with `--lang spanish` or `-l spanish`. Note that
-giving two different forms of the same flag in the same command invocation is an
-error.
-
-#### Ordering
-
-Flags for the application and commands are shown in the order they are defined.
-However, it's possible to sort them from outside this library by using `FlagsByName`
-or `CommandsByName` with `sort`.
-
-For example this:
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "add a task to the list\n.*complete a task on the list\n.*\n\n.*\n.*Load configuration from FILE\n.*Language for the greeting.*"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-  "sort"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "lang, l",
-      Value: "english",
-      Usage: "Language for the greeting",
-    },
-    cli.StringFlag{
-      Name: "config, c",
-      Usage: "Load configuration from `FILE`",
-    },
-  }
-
-  app.Commands = []cli.Command{
-    {
-      Name:    "complete",
-      Aliases: []string{"c"},
-      Usage:   "complete a task on the list",
-      Action:  func(c *cli.Context) error {
-        return nil
-      },
-    },
-    {
-      Name:    "add",
-      Aliases: []string{"a"},
-      Usage:   "add a task to the list",
-      Action:  func(c *cli.Context) error {
-        return nil
-      },
-    },
-  }
-
-  sort.Sort(cli.FlagsByName(app.Flags))
-  sort.Sort(cli.CommandsByName(app.Commands))
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Will result in help output like:
-
-```
---config FILE, -c FILE  Load configuration from FILE
---lang value, -l value  Language for the greeting (default: "english")
-```
-
-#### Values from the Environment
-
-You can also have the default value set from the environment via `EnvVar`.  e.g.
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "language for the greeting.*APP_LANG"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "lang, l",
-      Value: "english",
-      Usage: "language for the greeting",
-      EnvVar: "APP_LANG",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-The `EnvVar` may also be given as a comma-delimited "cascade", where the first
-environment variable that resolves is used as the default.
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "language for the greeting.*LEGACY_COMPAT_LANG.*APP_LANG.*LANG"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "lang, l",
-      Value: "english",
-      Usage: "language for the greeting",
-      EnvVar: "LEGACY_COMPAT_LANG,APP_LANG,LANG",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-#### Values from files
-
-You can also have the default value set from file via `FilePath`.  e.g.
-
-<!-- {
-  "args": ["&#45;&#45;help"],
-  "output": "password for the mysql database"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Flags = []cli.Flag {
-    cli.StringFlag{
-      Name: "password, p",
-      Usage: "password for the mysql database",
-      FilePath: "/etc/mysql/password",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Note that default values set from file (e.g. `FilePath`) take precedence over
-default values set from the enviornment (e.g. `EnvVar`).
-
-#### Values from alternate input sources (YAML, TOML, and others)
-
-There is a separate package altsrc that adds support for getting flag values
-from other file input sources.
-
-Currently supported input source formats:
-* YAML
-* TOML
-
-In order to get values for a flag from an alternate input source the following
-code would be added to wrap an existing cli.Flag like below:
-
-``` go
-  altsrc.NewIntFlag(cli.IntFlag{Name: "test"})
-```
-
-Initialization must also occur for these flags. Below is an example initializing
-getting data from a yaml file below.
-
-``` go
-  command.Before = altsrc.InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
-```
-
-The code above will use the "load" string as a flag name to get the file name of
-a yaml file from the cli.Context.  It will then use that file name to initialize
-the yaml input source for any flags that are defined on that command.  As a note
-the "load" flag used would also have to be defined on the command flags in order
-for this code snipped to work.
-
-Currently only YAML and JSON files are supported but developers can add support
-for other input sources by implementing the altsrc.InputSourceContext for their
-given sources.
-
-Here is a more complete sample of a command using YAML support:
-
-<!-- {
-  "args": ["test-cmd", "&#45;&#45;help"],
-  "output": "&#45&#45;test value.*default: 0"
-} -->
-``` go
-package notmain
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-  "github.com/urfave/cli/altsrc"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  flags := []cli.Flag{
-    altsrc.NewIntFlag(cli.IntFlag{Name: "test"}),
-    cli.StringFlag{Name: "load"},
-  }
-
-  app.Action = func(c *cli.Context) error {
-    fmt.Println("yaml ist rad")
-    return nil
-  }
-
-  app.Before = altsrc.InitInputSourceWithContext(flags, altsrc.NewYamlSourceFromFlagFunc("load"))
-  app.Flags = flags
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-#### Precedence
-
-The precedence for flag value sources is as follows (highest to lowest):
-
-0. Command line flag value from user
-0. Environment variable (if specified)
-0. Configuration file (if specified)
-0. Default defined on the flag
-
-### Subcommands
-
-Subcommands can be defined for a more git-like command line app.
-
-<!-- {
-  "args": ["template", "add"],
-  "output": "new task template: .+"
-} -->
-```go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Commands = []cli.Command{
-    {
-      Name:    "add",
-      Aliases: []string{"a"},
-      Usage:   "add a task to the list",
-      Action:  func(c *cli.Context) error {
-        fmt.Println("added task: ", c.Args().First())
-        return nil
-      },
-    },
-    {
-      Name:    "complete",
-      Aliases: []string{"c"},
-      Usage:   "complete a task on the list",
-      Action:  func(c *cli.Context) error {
-        fmt.Println("completed task: ", c.Args().First())
-        return nil
-      },
-    },
-    {
-      Name:        "template",
-      Aliases:     []string{"t"},
-      Usage:       "options for task templates",
-      Subcommands: []cli.Command{
-        {
-          Name:  "add",
-          Usage: "add a new template",
-          Action: func(c *cli.Context) error {
-            fmt.Println("new task template: ", c.Args().First())
-            return nil
-          },
-        },
-        {
-          Name:  "remove",
-          Usage: "remove an existing template",
-          Action: func(c *cli.Context) error {
-            fmt.Println("removed task template: ", c.Args().First())
-            return nil
-          },
-        },
-      },
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-### Subcommands categories
-
-For additional organization in apps that have many subcommands, you can
-associate a category for each command to group them together in the help
-output.
-
-E.g.
-
-```go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-
-  app.Commands = []cli.Command{
-    {
-      Name: "noop",
-    },
-    {
-      Name:     "add",
-      Category: "Template actions",
-    },
-    {
-      Name:     "remove",
-      Category: "Template actions",
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Will include:
-
-```
-COMMANDS:
-    noop
-
-  Template actions:
-    add
-    remove
-```
-
-### Exit code
-
-Calling `App.Run` will not automatically call `os.Exit`, which means that by
-default the exit code will "fall through" to being `0`.  An explicit exit code
-may be set by returning a non-nil error that fulfills `cli.ExitCoder`, *or* a
-`cli.MultiError` that includes an error that fulfills `cli.ExitCoder`, e.g.:
-
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  app := cli.NewApp()
-  app.Flags = []cli.Flag{
-    cli.BoolTFlag{
-      Name:  "ginger-crouton",
-      Usage: "is it in the soup?",
-    },
-  }
-  app.Action = func(ctx *cli.Context) error {
-    if !ctx.Bool("ginger-crouton") {
-      return cli.NewExitError("it is not in the soup", 86)
-    }
-    return nil
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-### Bash Completion
-
-You can enable completion commands by setting the `EnableBashCompletion`
-flag on the `App` object.  By default, this setting will only auto-complete to
-show an app's subcommands, but you can write your own completion methods for
-the App or its subcommands.
-
-<!-- {
-  "args": ["complete", "&#45;&#45;generate&#45;bash&#45;completion"],
-  "output": "laundry"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  tasks := []string{"cook", "clean", "laundry", "eat", "sleep", "code"}
-
-  app := cli.NewApp()
-  app.EnableBashCompletion = true
-  app.Commands = []cli.Command{
-    {
-      Name:  "complete",
-      Aliases: []string{"c"},
-      Usage: "complete a task on the list",
-      Action: func(c *cli.Context) error {
-         fmt.Println("completed task: ", c.Args().First())
-         return nil
-      },
-      BashComplete: func(c *cli.Context) {
-        // This will complete if no args are passed
-        if c.NArg() > 0 {
-          return
-        }
-        for _, t := range tasks {
-          fmt.Println(t)
-        }
-      },
-    },
-  }
-
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-#### Enabling
-
-Source the `autocomplete/bash_autocomplete` file in your `.bashrc` file while
-setting the `PROG` variable to the name of your program:
-
-`PROG=myprogram source /.../cli/autocomplete/bash_autocomplete`
-
-#### Distribution
-
-Copy `autocomplete/bash_autocomplete` into `/etc/bash_completion.d/` and rename
-it to the name of the program you wish to add autocomplete support for (or
-automatically install it there if you are distributing a package). Don't forget
-to source the file to make it active in the current shell.
-
-```
-sudo cp src/bash_autocomplete /etc/bash_completion.d/<myprogram>
-source /etc/bash_completion.d/<myprogram>
-```
-
-Alternatively, you can just document that users should source the generic
-`autocomplete/bash_autocomplete` in their bash configuration with `$PROG` set
-to the name of their program (as above).
-
-#### Customization
-
-The default bash completion flag (`--generate-bash-completion`) is defined as
-`cli.BashCompletionFlag`, and may be redefined if desired, e.g.:
-
-<!-- {
-  "args": ["&#45;&#45;compgen"],
-  "output": "wat\nhelp\nh"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  cli.BashCompletionFlag = cli.BoolFlag{
-    Name:   "compgen",
-    Hidden: true,
-  }
-
-  app := cli.NewApp()
-  app.EnableBashCompletion = true
-  app.Commands = []cli.Command{
-    {
-      Name: "wat",
-    },
-  }
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-### Generated Help Text
-
-The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked
-by the cli internals in order to print generated help text for the app, command,
-or subcommand, and break execution.
-
-#### Customization
-
-All of the help text generation may be customized, and at multiple levels.  The
-templates are exposed as variables `AppHelpTemplate`, `CommandHelpTemplate`, and
-`SubcommandHelpTemplate` which may be reassigned or augmented, and full override
-is possible by assigning a compatible func to the `cli.HelpPrinter` variable,
-e.g.:
-
-<!-- {
-  "output": "Ha HA.  I pwnd the help!!1"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "io"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  // EXAMPLE: Append to an existing template
-  cli.AppHelpTemplate = fmt.Sprintf(`%s
-
-WEBSITE: http://awesometown.example.com
-
-SUPPORT: support@awesometown.example.com
-
-`, cli.AppHelpTemplate)
-
-  // EXAMPLE: Override a template
-  cli.AppHelpTemplate = `NAME:
-   {{.Name}} - {{.Usage}}
-USAGE:
-   {{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
-   {{if len .Authors}}
-AUTHOR:
-   {{range .Authors}}{{ . }}{{end}}
-   {{end}}{{if .Commands}}
-COMMANDS:
-{{range .Commands}}{{if not .HideHelp}}   {{join .Names ", "}}{{ "\t"}}{{.Usage}}{{ "\n" }}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
-GLOBAL OPTIONS:
-   {{range .VisibleFlags}}{{.}}
-   {{end}}{{end}}{{if .Copyright }}
-COPYRIGHT:
-   {{.Copyright}}
-   {{end}}{{if .Version}}
-VERSION:
-   {{.Version}}
-   {{end}}
-`
-
-  // EXAMPLE: Replace the `HelpPrinter` func
-  cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
-    fmt.Println("Ha HA.  I pwnd the help!!1")
-  }
-
-  err := cli.NewApp().Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-The default flag may be customized to something other than `-h/--help` by
-setting `cli.HelpFlag`, e.g.:
-
-<!-- {
-  "args": ["&#45;&#45halp"],
-  "output": "haaaaalp.*HALP"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  cli.HelpFlag = cli.BoolFlag{
-    Name: "halp, haaaaalp",
-    Usage: "HALP",
-    EnvVar: "SHOW_HALP,HALPPLZ",
-  }
-
-  err := cli.NewApp().Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-### Version Flag
-
-The default version flag (`-v/--version`) is defined as `cli.VersionFlag`, which
-is checked by the cli internals in order to print the `App.Version` via
-`cli.VersionPrinter` and break execution.
-
-#### Customization
-
-The default flag may be customized to something other than `-v/--version` by
-setting `cli.VersionFlag`, e.g.:
-
-<!-- {
-  "args": ["&#45;&#45print-version"],
-  "output": "partay version 19\\.99\\.0"
-} -->
-``` go
-package main
-
-import (
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-func main() {
-  cli.VersionFlag = cli.BoolFlag{
-    Name: "print-version, V",
-    Usage: "print only the version",
-  }
-
-  app := cli.NewApp()
-  app.Name = "partay"
-  app.Version = "19.99.0"
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-Alternatively, the version printer at `cli.VersionPrinter` may be overridden, e.g.:
-
-<!-- {
-  "args": ["&#45;&#45version"],
-  "output": "version=19\\.99\\.0 revision=fafafaf"
-} -->
-``` go
-package main
-
-import (
-  "fmt"
-  "log"
-  "os"
-
-  "github.com/urfave/cli"
-)
-
-var (
-  Revision = "fafafaf"
-)
-
-func main() {
-  cli.VersionPrinter = func(c *cli.Context) {
-    fmt.Printf("version=%s revision=%s\n", c.App.Version, Revision)
-  }
-
-  app := cli.NewApp()
-  app.Name = "partay"
-  app.Version = "19.99.0"
-  err := app.Run(os.Args)
-  if err != nil {
-    log.Fatal(err)
-  }
-}
-```
-
-#### Full API Example
-
-**Notice**: This is a contrived (functioning) example meant strictly for API
-demonstration purposes.  Use of one's imagination is encouraged.
-
-<!-- {
-  "output": "made it!\nPhew!"
-} -->
-``` go
-package main
-
-import (
-  "errors"
-  "flag"
-  "fmt"
-  "io"
-  "io/ioutil"
-  "os"
-  "time"
-
-  "github.com/urfave/cli"
-)
-
-func init() {
-  cli.AppHelpTemplate += "\nCUSTOMIZED: you bet ur muffins\n"
-  cli.CommandHelpTemplate += "\nYMMV\n"
-  cli.SubcommandHelpTemplate += "\nor something\n"
-
-  cli.HelpFlag = cli.BoolFlag{Name: "halp"}
-  cli.BashCompletionFlag = cli.BoolFlag{Name: "compgen", Hidden: true}
-  cli.VersionFlag = cli.BoolFlag{Name: "print-version, V"}
-
-  cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
-    fmt.Fprintf(w, "best of luck to you\n")
-  }
-  cli.VersionPrinter = func(c *cli.Context) {
-    fmt.Fprintf(c.App.Writer, "version=%s\n", c.App.Version)
-  }
-  cli.OsExiter = func(c int) {
-    fmt.Fprintf(cli.ErrWriter, "refusing to exit %d\n", c)
-  }
-  cli.ErrWriter = ioutil.Discard
-  cli.FlagStringer = func(fl cli.Flag) string {
-    return fmt.Sprintf("\t\t%s", fl.GetName())
-  }
-}
-
-type hexWriter struct{}
-
-func (w *hexWriter) Write(p []byte) (int, error) {
-  for _, b := range p {
-    fmt.Printf("%x", b)
-  }
-  fmt.Printf("\n")
-
-  return len(p), nil
-}
-
-type genericType struct{
-  s string
-}
-
-func (g *genericType) Set(value string) error {
-  g.s = value
-  return nil
-}
-
-func (g *genericType) String() string {
-  return g.s
-}
-
-func main() {
-  app := cli.NewApp()
-  app.Name = "kənˈtrīv"
-  app.Version = "19.99.0"
-  app.Compiled = time.Now()
-  app.Authors = []cli.Author{
-    cli.Author{
-      Name:  "Example Human",
-      Email: "human@example.com",
-    },
-  }
-  app.Copyright = "(c) 1999 Serious Enterprise"
-  app.HelpName = "contrive"
-  app.Usage = "demonstrate available API"
-  app.UsageText = "contrive - demonstrating the available API"
-  app.ArgsUsage = "[args and such]"
-  app.Commands = []cli.Command{
-    cli.Command{
-      Name:        "doo",
-      Aliases:     []string{"do"},
-      Category:    "motion",
-      Usage:       "do the doo",
-      UsageText:   "doo - does the dooing",
-      Description: "no really, there is a lot of dooing to be done",
-      ArgsUsage:   "[arrgh]",
-      Flags: []cli.Flag{
-        cli.BoolFlag{Name: "forever, forevvarr"},
-      },
-      Subcommands: cli.Commands{
-        cli.Command{
-          Name:   "wop",
-          Action: wopAction,
-        },
-      },
-      SkipFlagParsing: false,
-      HideHelp:        false,
-      Hidden:          false,
-      HelpName:        "doo!",
-      BashComplete: func(c *cli.Context) {
-        fmt.Fprintf(c.App.Writer, "--better\n")
-      },
-      Before: func(c *cli.Context) error {
-        fmt.Fprintf(c.App.Writer, "brace for impact\n")
-        return nil
-      },
-      After: func(c *cli.Context) error {
-        fmt.Fprintf(c.App.Writer, "did we lose anyone?\n")
-        return nil
-      },
-      Action: func(c *cli.Context) error {
-        c.Command.FullName()
-        c.Command.HasName("wop")
-        c.Command.Names()
-        c.Command.VisibleFlags()
-        fmt.Fprintf(c.App.Writer, "dodododododoodododddooooododododooo\n")
-        if c.Bool("forever") {
-          c.Command.Run(c)
-        }
-        return nil
-      },
-      OnUsageError: func(c *cli.Context, err error, isSubcommand bool) error {
-        fmt.Fprintf(c.App.Writer, "for shame\n")
-        return err
-      },
-    },
-  }
-  app.Flags = []cli.Flag{
-    cli.BoolFlag{Name: "fancy"},
-    cli.BoolTFlag{Name: "fancier"},
-    cli.DurationFlag{Name: "howlong, H", Value: time.Second * 3},
-    cli.Float64Flag{Name: "howmuch"},
-    cli.GenericFlag{Name: "wat", Value: &genericType{}},
-    cli.Int64Flag{Name: "longdistance"},
-    cli.Int64SliceFlag{Name: "intervals"},
-    cli.IntFlag{Name: "distance"},
-    cli.IntSliceFlag{Name: "times"},
-    cli.StringFlag{Name: "dance-move, d"},
-    cli.StringSliceFlag{Name: "names, N"},
-    cli.UintFlag{Name: "age"},
-    cli.Uint64Flag{Name: "bigage"},
-  }
-  app.EnableBashCompletion = true
-  app.HideHelp = false
-  app.HideVersion = false
-  app.BashComplete = func(c *cli.Context) {
-    fmt.Fprintf(c.App.Writer, "lipstick\nkiss\nme\nlipstick\nringo\n")
-  }
-  app.Before = func(c *cli.Context) error {
-    fmt.Fprintf(c.App.Writer, "HEEEERE GOES\n")
-    return nil
-  }
-  app.After = func(c *cli.Context) error {
-    fmt.Fprintf(c.App.Writer, "Phew!\n")
-    return nil
-  }
-  app.CommandNotFound = func(c *cli.Context, command string) {
-    fmt.Fprintf(c.App.Writer, "Thar be no %q here.\n", command)
-  }
-  app.OnUsageError = func(c *cli.Context, err error, isSubcommand bool) error {
-    if isSubcommand {
-      return err
-    }
-
-    fmt.Fprintf(c.App.Writer, "WRONG: %#v\n", err)
-    return nil
-  }
-  app.Action = func(c *cli.Context) error {
-    cli.DefaultAppComplete(c)
-    cli.HandleExitCoder(errors.New("not an exit coder, though"))
-    cli.ShowAppHelp(c)
-    cli.ShowCommandCompletions(c, "nope")
-    cli.ShowCommandHelp(c, "also-nope")
-    cli.ShowCompletions(c)
-    cli.ShowSubcommandHelp(c)
-    cli.ShowVersion(c)
-
-    categories := c.App.Categories()
-    categories.AddCommand("sounds", cli.Command{
-      Name: "bloop",
-    })
-
-    for _, category := range c.App.Categories() {
-      fmt.Fprintf(c.App.Writer, "%s\n", category.Name)
-      fmt.Fprintf(c.App.Writer, "%#v\n", category.Commands)
-      fmt.Fprintf(c.App.Writer, "%#v\n", category.VisibleCommands())
-    }
-
-    fmt.Printf("%#v\n", c.App.Command("doo"))
-    if c.Bool("infinite") {
-      c.App.Run([]string{"app", "doo", "wop"})
-    }
-
-    if c.Bool("forevar") {
-      c.App.RunAsSubcommand(c)
-    }
-    c.App.Setup()
-    fmt.Printf("%#v\n", c.App.VisibleCategories())
-    fmt.Printf("%#v\n", c.App.VisibleCommands())
-    fmt.Printf("%#v\n", c.App.VisibleFlags())
-
-    fmt.Printf("%#v\n", c.Args().First())
-    if len(c.Args()) > 0 {
-      fmt.Printf("%#v\n", c.Args()[1])
-    }
-    fmt.Printf("%#v\n", c.Args().Present())
-    fmt.Printf("%#v\n", c.Args().Tail())
-
-    set := flag.NewFlagSet("contrive", 0)
-    nc := cli.NewContext(c.App, set, c)
-
-    fmt.Printf("%#v\n", nc.Args())
-    fmt.Printf("%#v\n", nc.Bool("nope"))
-    fmt.Printf("%#v\n", nc.BoolT("nerp"))
-    fmt.Printf("%#v\n", nc.Duration("howlong"))
-    fmt.Printf("%#v\n", nc.Float64("hay"))
-    fmt.Printf("%#v\n", nc.Generic("bloop"))
-    fmt.Printf("%#v\n", nc.Int64("bonk"))
-    fmt.Printf("%#v\n", nc.Int64Slice("burnks"))
-    fmt.Printf("%#v\n", nc.Int("bips"))
-    fmt.Printf("%#v\n", nc.IntSlice("blups"))
-    fmt.Printf("%#v\n", nc.String("snurt"))
-    fmt.Printf("%#v\n", nc.StringSlice("snurkles"))
-    fmt.Printf("%#v\n", nc.Uint("flub"))
-    fmt.Printf("%#v\n", nc.Uint64("florb"))
-    fmt.Printf("%#v\n", nc.GlobalBool("global-nope"))
-    fmt.Printf("%#v\n", nc.GlobalBoolT("global-nerp"))
-    fmt.Printf("%#v\n", nc.GlobalDuration("global-howlong"))
-    fmt.Printf("%#v\n", nc.GlobalFloat64("global-hay"))
-    fmt.Printf("%#v\n", nc.GlobalGeneric("global-bloop"))
-    fmt.Printf("%#v\n", nc.GlobalInt("global-bips"))
-    fmt.Printf("%#v\n", nc.GlobalIntSlice("global-blups"))
-    fmt.Printf("%#v\n", nc.GlobalString("global-snurt"))
-    fmt.Printf("%#v\n", nc.GlobalStringSlice("global-snurkles"))
-
-    fmt.Printf("%#v\n", nc.FlagNames())
-    fmt.Printf("%#v\n", nc.GlobalFlagNames())
-    fmt.Printf("%#v\n", nc.GlobalIsSet("wat"))
-    fmt.Printf("%#v\n", nc.GlobalSet("wat", "nope"))
-    fmt.Printf("%#v\n", nc.NArg())
-    fmt.Printf("%#v\n", nc.NumFlags())
-    fmt.Printf("%#v\n", nc.Parent())
-
-    nc.Set("wat", "also-nope")
-
-    ec := cli.NewExitError("ohwell", 86)
-    fmt.Fprintf(c.App.Writer, "%d", ec.ExitCode())
-    fmt.Printf("made it!\n")
-    return nil
-  }
-
-  if os.Getenv("HEXY") != "" {
-    app.Writer = &hexWriter{}
-    app.ErrWriter = &hexWriter{}
-  }
-
-  app.Metadata = map[string]interface{}{
-    "layers":     "many",
-    "explicable": false,
-    "whatever-values": 19.99,
-  }
-
-
-  // ignore error so we don't exit non-zero and break gfmrun README example tests
-  _ = app.Run(os.Args)
-}
-
-func wopAction(c *cli.Context) error {
-  fmt.Fprintf(c.App.Writer, ":wave: over here, eh\n")
-  return nil
-}
-```
-
-### Combining short Bool options
-
-Traditional use of boolean options using their shortnames look like this:
-```
-# cmd foobar -s -o
-```
-
-Suppose you want users to be able to combine your bool options with their shortname.  This
-can be done using the **UseShortOptionHandling** bool in your commands.  Suppose your program
-has a two bool flags such as *serve* and *option* with the short options of *-o* and
-*-s* respectively. With **UseShortOptionHandling** set to *true*, a user can use a syntax
-like:
-```
-# cmd foobar -so
-```
-
-If you enable the **UseShortOptionHandling*, then you must not use any flags that have a single
-leading *-* or this will result in failures.  For example, **-option** can no longer be used.  Flags
-with two leading dashes (such as **--options**) are still valid.
-
-## Contribution Guidelines
-
-See [./CONTRIBUTING.md](./CONTRIBUTING.md)
diff --git a/vendor/github.com/urfave/cli/app.go b/vendor/github.com/urfave/cli/app.go
deleted file mode 100644
index 9add067b0..000000000
--- a/vendor/github.com/urfave/cli/app.go
+++ /dev/null
@@ -1,508 +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
-	// Execute this function to handle ExitErrors. If not provided, HandleExitCoder is provided to
-	// function as a default, so this is optional.
-	ExitErrHandler ExitErrHandlerFunc
-	// Other custom info
-	Metadata map[string]interface{}
-	// Carries a function which returns app specific info.
-	ExtraInfo func() map[string]string
-	// CustomAppHelpTemplate the text template for app help topic.
-	// cli.go uses text/template to render templates. You can
-	// render custom help text by setting this variable.
-	CustomAppHelpTemplate string
-
-	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)
-			a.handleExitCoder(context, 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 {
-			fmt.Fprintf(a.Writer, "%v\n\n", beforeErr)
-			ShowAppHelp(context)
-			a.handleExitCoder(context, 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)
-
-	a.handleExitCoder(context, 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)
-			a.handleExitCoder(context, 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 {
-				a.handleExitCoder(context, err)
-				if err != nil {
-					err = NewMultiError(err, afterErr)
-				} else {
-					err = afterErr
-				}
-			}
-		}()
-	}
-
-	if a.Before != nil {
-		beforeErr := a.Before(context)
-		if beforeErr != nil {
-			a.handleExitCoder(context, 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)
-
-	a.handleExitCoder(context, 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)
-	}
-}
-
-func (a *App) handleExitCoder(context *Context, err error) {
-	if a.ExitErrHandler != nil {
-		a.ExitErrHandler(context, err)
-	} else {
-		HandleExitCoder(err)
-	}
-}
-
-// 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
-	}
-
-	return errInvalidActionType
-}
diff --git a/vendor/github.com/urfave/cli/category.go b/vendor/github.com/urfave/cli/category.go
deleted file mode 100644
index bf3c73c55..000000000
--- a/vendor/github.com/urfave/cli/category.go
+++ /dev/null
@@ -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 lexicographicLess(c[i].Name, c[j].Name)
-}
-
-func (c CommandCategories) Len() int {
-	return len(c)
-}
-
-func (c CommandCategories) Swap(i, j int) {
-	c[i], c[j] = c[j], c[i]
-}
-
-// 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
-}
diff --git a/vendor/github.com/urfave/cli/cli.go b/vendor/github.com/urfave/cli/cli.go
deleted file mode 100644
index 90c07eb8e..000000000
--- a/vendor/github.com/urfave/cli/cli.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// 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
diff --git a/vendor/github.com/urfave/cli/command.go b/vendor/github.com/urfave/cli/command.go
deleted file mode 100644
index 3d44404f1..000000000
--- a/vendor/github.com/urfave/cli/command.go
+++ /dev/null
@@ -1,383 +0,0 @@
-package cli
-
-import (
-	"flag"
-	"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
-	// Boolean to enable short-option handling so user can combine several
-	// single-character bool arguments into one
-	// i.e. foobar -o -v -> foobar -ov
-	UseShortOptionHandling bool
-
-	// Full name of command for help, defaults to full command name, including parent commands.
-	HelpName        string
-	commandNamePath []string
-
-	// CustomHelpTemplate the text template for the command help topic.
-	// cli.go uses text/template to render templates. You can
-	// render custom help text by setting this variable.
-	CustomHelpTemplate string
-}
-
-type CommandsByName []Command
-
-func (c CommandsByName) Len() int {
-	return len(c)
-}
-
-func (c CommandsByName) Less(i, j int) bool {
-	return lexicographicLess(c[i].Name, c[j].Name)
-}
-
-func (c CommandsByName) Swap(i, j int) {
-	c[i], c[j] = c[j], c[i]
-}
-
-// FullName returns the full name of the command.
-// For subcommands this ensures that parent commands are part of the command path
-func (c Command) FullName() string {
-	if c.commandNamePath == nil {
-		return c.Name
-	}
-	return strings.Join(c.commandNamePath, " ")
-}
-
-// 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 := c.parseFlags(ctx.Args().Tail())
-
-	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)
-			context.App.handleExitCoder(context, 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 {
-				context.App.handleExitCoder(context, 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)
-			context.App.handleExitCoder(context, err)
-			return err
-		}
-	}
-
-	if c.Action == nil {
-		c.Action = helpSubcommand.Action
-	}
-
-	err = HandleAction(c.Action, context)
-
-	if err != nil {
-		context.App.handleExitCoder(context, err)
-	}
-	return err
-}
-
-func (c *Command) parseFlags(args Args) (*flag.FlagSet, error) {
-	set, err := flagSet(c.Name, c.Flags)
-	if err != nil {
-		return nil, err
-	}
-	set.SetOutput(ioutil.Discard)
-
-	if c.SkipFlagParsing {
-		return set, set.Parse(append([]string{"--"}, args...))
-	}
-
-	if !c.SkipArgReorder {
-		args = reorderArgs(args)
-	}
-
-PARSE:
-	err = set.Parse(args)
-	if err != nil {
-		if c.UseShortOptionHandling {
-			// To enable short-option handling (e.g., "-it" vs "-i -t")
-			// we have to iteratively catch parsing errors.  This way
-			// we achieve LR parsing without transforming any arguments.
-			// Otherwise, there is no way we can discriminate combined
-			// short options from common arguments that should be left
-			// untouched.
-			errStr := err.Error()
-			trimmed := strings.TrimPrefix(errStr, "flag provided but not defined: ")
-			if errStr == trimmed {
-				return nil, err
-			}
-			// regenerate the initial args with the split short opts
-			newArgs := Args{}
-			for i, arg := range args {
-				if arg != trimmed {
-					newArgs = append(newArgs, arg)
-					continue
-				}
-				shortOpts := translateShortOptions(set, Args{trimmed})
-				if len(shortOpts) == 1 {
-					return nil, err
-				}
-				// add each short option and all remaining arguments
-				newArgs = append(newArgs, shortOpts...)
-				newArgs = append(newArgs, args[i+1:]...)
-				args = newArgs
-				// now reset the flagset parse again
-				set, err = flagSet(c.Name, c.Flags)
-				if err != nil {
-					return nil, err
-				}
-				set.SetOutput(ioutil.Discard)
-				goto PARSE
-			}
-		}
-		return nil, err
-	}
-
-	err = normalizeFlags(c.Flags, set)
-	if err != nil {
-		return nil, err
-	}
-
-	return set, nil
-}
-
-// reorderArgs moves all flags before arguments as this is what flag expects
-func reorderArgs(args []string) []string {
-	var nonflags, flags []string
-
-	readFlagValue := false
-	for i, arg := range args {
-		if arg == "--" {
-			nonflags = append(nonflags, args[i:]...)
-			break
-		}
-
-		if readFlagValue && !strings.HasPrefix(arg, "-") && !strings.HasPrefix(arg, "--") {
-			readFlagValue = false
-			flags = append(flags, arg)
-			continue
-		}
-		readFlagValue = false
-
-		if arg != "-" && strings.HasPrefix(arg, "-") {
-			flags = append(flags, arg)
-
-			readFlagValue = !strings.Contains(arg, "=")
-		} else {
-			nonflags = append(nonflags, arg)
-		}
-	}
-
-	return append(flags, nonflags...)
-}
-
-func translateShortOptions(set *flag.FlagSet, flagArgs Args) []string {
-	allCharsFlags := func (s string) bool {
-		for i := range s {
-			f := set.Lookup(string(s[i]))
-			if f == nil {
-				return false
-			}
-		}
-		return true
-	}
-
-	// separate combined flags
-	var flagArgsSeparated []string
-	for _, flagArg := range flagArgs {
-		if strings.HasPrefix(flagArg, "-") && strings.HasPrefix(flagArg, "--") == false && len(flagArg) > 2 {
-			if !allCharsFlags(flagArg[1:]) {
-				flagArgsSeparated = append(flagArgsSeparated, flagArg)
-				continue
-			}
-			for _, flagChar := range flagArg[1:] {
-				flagArgsSeparated = append(flagArgsSeparated, "-"+string(flagChar))
-			}
-		} else {
-			flagArgsSeparated = append(flagArgsSeparated, flagArg)
-		}
-	}
-	return flagArgsSeparated
-}
-
-// 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)
-}
diff --git a/vendor/github.com/urfave/cli/context.go b/vendor/github.com/urfave/cli/context.go
deleted file mode 100644
index 552ee7405..000000000
--- a/vendor/github.com/urfave/cli/context.go
+++ /dev/null
@@ -1,287 +0,0 @@
-package cli
-
-import (
-	"errors"
-	"flag"
-	"os"
-	"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 available.
-		//
-		// 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()
-				}
-
-				filePathValue := val.FieldByName("FilePath")
-				if filePathValue.IsValid() {
-					eachName(filePathValue.String(), func(filePath string) {
-						if _, err := os.Stat(filePath); err == nil {
-							c.setFlags[name] = true
-							return
-						}
-					})
-				}
-
-				envVarValue := val.FieldByName("EnvVar")
-				if envVarValue.IsValid() {
-					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
-}
diff --git a/vendor/github.com/urfave/cli/errors.go b/vendor/github.com/urfave/cli/errors.go
deleted file mode 100644
index 562b2953c..000000000
--- a/vendor/github.com/urfave/cli/errors.go
+++ /dev/null
@@ -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
-}
diff --git a/vendor/github.com/urfave/cli/flag.go b/vendor/github.com/urfave/cli/flag.go
deleted file mode 100644
index b0cffc006..000000000
--- a/vendor/github.com/urfave/cli/flag.go
+++ /dev/null
@@ -1,786 +0,0 @@
-package cli
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"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
-
-// FlagNamePrefixer converts a full flag name and its placeholder into the help
-// message flag prefix. This is used by the default FlagStringer.
-var FlagNamePrefixer FlagNamePrefixFunc = prefixedNames
-
-// FlagEnvHinter annotates flag help message with the environment variable
-// details. This is used by the default FlagStringer.
-var FlagEnvHinter FlagEnvHintFunc = withEnvHint
-
-// FlagFileHinter annotates flag help message with the environment variable
-// details. This is used by the default FlagStringer.
-var FlagFileHinter FlagFileHintFunc = withFileHint
-
-// FlagsByName is a slice of Flag.
-type FlagsByName []Flag
-
-func (f FlagsByName) Len() int {
-	return len(f)
-}
-
-func (f FlagsByName) Less(i, j int) bool {
-	return lexicographicLess(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 fileEnvVal, ok := flagFromFileEnv(f.FilePath, f.EnvVar); ok {
-		if err := val.Set(fileEnvVal); err != nil {
-			return fmt.Errorf("could not parse %s as value for flag %s: %s", fileEnvVal, f.Name, err)
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-			}
-		}
-		if f.Value == nil {
-			f.Value = newVal
-		} else {
-			*f.Value = *newVal
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-			}
-		}
-		if f.Value == nil {
-			f.Value = newVal
-		} else {
-			*f.Value = *newVal
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-			}
-		}
-		if f.Value == nil {
-			f.Value = newVal
-		} else {
-			*f.Value = *newVal
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.EnvVar); ok {
-		if envVal == "" {
-			val = false
-		} else {
-			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
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.EnvVar); ok {
-		if envVal == "" {
-			val = false
-		} else {
-			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
-		}
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.EnvVar); ok {
-		f.Value = envVal
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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
-	}
-
-	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 envVal, ok := flagFromFileEnv(f.FilePath, f.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)
-	}
-
-	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 = " [" + prefix + strings.Join(strings.Split(envVar, ","), sep) + suffix + "]"
-	}
-	return str + envText
-}
-
-func withFileHint(filePath, str string) string {
-	fileText := ""
-	if filePath != "" {
-		fileText = fmt.Sprintf(" [%s]", filePath)
-	}
-	return str + fileText
-}
-
-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 FlagFileHinter(
-			fv.FieldByName("FilePath").String(),
-			FlagEnvHinter(
-				fv.FieldByName("EnvVar").String(),
-				stringifyIntSliceFlag(f.(IntSliceFlag)),
-			),
-		)
-	case Int64SliceFlag:
-		return FlagFileHinter(
-			fv.FieldByName("FilePath").String(),
-			FlagEnvHinter(
-				fv.FieldByName("EnvVar").String(),
-				stringifyInt64SliceFlag(f.(Int64SliceFlag)),
-			),
-		)
-	case StringSliceFlag:
-		return FlagFileHinter(
-			fv.FieldByName("FilePath").String(),
-			FlagEnvHinter(
-				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(usage + defaultValueString)
-
-	return FlagFileHinter(
-		fv.FieldByName("FilePath").String(),
-		FlagEnvHinter(
-			fv.FieldByName("EnvVar").String(),
-			FlagNamePrefixer(fv.FieldByName("Name").String(), placeholder)+"\t"+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, strconv.Itoa(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, strconv.FormatInt(i, 10))
-		}
-	}
-
-	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, strconv.Quote(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(usage + defaultVal)
-	return FlagNamePrefixer(name, placeholder) + "\t" + usageWithDefault
-}
-
-func flagFromFileEnv(filePath, envName string) (val string, ok bool) {
-	for _, envVar := range strings.Split(envName, ",") {
-		envVar = strings.TrimSpace(envVar)
-		if envVal, ok := syscall.Getenv(envVar); ok {
-			return envVal, true
-		}
-	}
-	for _, fileVar := range strings.Split(filePath, ",") {
-		if data, err := ioutil.ReadFile(fileVar); err == nil {
-			return string(data), true
-		}
-	}
-	return "", false
-}
diff --git a/vendor/github.com/urfave/cli/flag_generated.go b/vendor/github.com/urfave/cli/flag_generated.go
deleted file mode 100644
index 001576c8b..000000000
--- a/vendor/github.com/urfave/cli/flag_generated.go
+++ /dev/null
@@ -1,640 +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
-	FilePath    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
-	FilePath    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
-	FilePath    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
-	FilePath    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
-	FilePath 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
-	FilePath    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
-	FilePath    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
-	FilePath 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
-	FilePath 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
-	FilePath    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
-	FilePath 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
-	FilePath    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
-	FilePath    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
-}
diff --git a/vendor/github.com/urfave/cli/funcs.go b/vendor/github.com/urfave/cli/funcs.go
deleted file mode 100644
index 0036b1130..000000000
--- a/vendor/github.com/urfave/cli/funcs.go
+++ /dev/null
@@ -1,44 +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
-
-// ExitErrHandlerFunc is executed if provided in order to handle ExitError values
-// returned by Actions and Before/After functions.
-type ExitErrHandlerFunc func(context *Context, err error)
-
-// FlagStringFunc is used by the help generation to display a flag, which is
-// expected to be a single line.
-type FlagStringFunc func(Flag) string
-
-// FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix
-// text for a flag's full name.
-type FlagNamePrefixFunc func(fullName, placeholder string) string
-
-// FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help
-// with the environment variable details.
-type FlagEnvHintFunc func(envVar, str string) string
-
-// FlagFileHintFunc is used by the default FlagStringFunc to annotate flag help
-// with the file path details.
-type FlagFileHintFunc func(filePath, str string) string
diff --git a/vendor/github.com/urfave/cli/help.go b/vendor/github.com/urfave/cli/help.go
deleted file mode 100644
index 65874fa2f..000000000
--- a/vendor/github.com/urfave/cli/help.go
+++ /dev/null
@@ -1,345 +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
-		}
-		if os.Getenv("_CLI_ZSH_AUTOCOMPLETE_HACK") == "1" {
-			for _, name := range command.Names() {
-				fmt.Fprintf(c.App.Writer, "%s:%s\n", name, command.Usage)
-			}
-		} else {
-			for _, name := range command.Names() {
-				fmt.Fprintf(c.App.Writer, "%s\n", 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
-}
diff --git a/vendor/github.com/urfave/cli/sort.go b/vendor/github.com/urfave/cli/sort.go
deleted file mode 100644
index 23d1c2f77..000000000
--- a/vendor/github.com/urfave/cli/sort.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package cli
-
-import "unicode"
-
-// lexicographicLess compares strings alphabetically considering case.
-func lexicographicLess(i, j string) bool {
-	iRunes := []rune(i)
-	jRunes := []rune(j)
-
-	lenShared := len(iRunes)
-	if lenShared > len(jRunes) {
-		lenShared = len(jRunes)
-	}
-
-	for index := 0; index < lenShared; index++ {
-		ir := iRunes[index]
-		jr := jRunes[index]
-
-		if lir, ljr := unicode.ToLower(ir), unicode.ToLower(jr); lir != ljr {
-			return lir < ljr
-		}
-
-		if ir != jr {
-			return ir < jr
-		}
-	}
-
-	return i < j
-}