Add support for make vendor-in-container

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

6 files changed, 0 insertions, 1918 deletions

diff --git a/vendor/github.com/Microsoft/hcsshim/mksyscall_windows.go b/vendor/github.com/Microsoft/hcsshim/mksyscall_windows.go
deleted file mode 100644
index 7647734de..000000000
--- a/vendor/github.com/Microsoft/hcsshim/mksyscall_windows.go
+++ /dev/null
@@ -1,943 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-mksyscall_windows generates windows system call bodies
-
-It parses all files specified on command line containing function
-prototypes (like syscall_windows.go) and prints system call bodies
-to standard output.
-
-The prototypes are marked by lines beginning with "//sys" and read
-like func declarations if //sys is replaced by func, but:
-
-* The parameter lists must give a name for each argument. This
-  includes return parameters.
-
-* The parameter lists must give a type for each argument:
-  the (x, y, z int) shorthand is not allowed.
-
-* If the return parameter is an error number, it must be named err.
-
-* If go func name needs to be different from it's winapi dll name,
-  the winapi name could be specified at the end, after "=" sign, like
-  //sys LoadLibrary(libname string) (handle uint32, err error) = LoadLibraryA
-
-* Each function that returns err needs to supply a condition, that
-  return value of winapi will be tested against to detect failure.
-  This would set err to windows "last-error", otherwise it will be nil.
-  The value can be provided at end of //sys declaration, like
-  //sys LoadLibrary(libname string) (handle uint32, err error) [failretval==-1] = LoadLibraryA
-  and is [failretval==0] by default.
-
-Usage:
-	mksyscall_windows [flags] [path ...]
-
-The flags are:
-	-output
-		Specify output file name (outputs to console if blank).
-	-trace
-		Generate print statement after every syscall.
-*/
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"errors"
-	"flag"
-	"fmt"
-	"go/format"
-	"go/parser"
-	"go/token"
-	"io"
-	"io/ioutil"
-	"log"
-	"os"
-	"path/filepath"
-	"runtime"
-	"sort"
-	"strconv"
-	"strings"
-	"text/template"
-)
-
-var (
-	filename       = flag.String("output", "", "output file name (standard output if omitted)")
-	printTraceFlag = flag.Bool("trace", false, "generate print statement after every syscall")
-	systemDLL      = flag.Bool("systemdll", true, "whether all DLLs should be loaded from the Windows system directory")
-	winio          = flag.Bool("winio", false, "import go-winio")
-)
-
-func trim(s string) string {
-	return strings.Trim(s, " \t")
-}
-
-var packageName string
-
-func packagename() string {
-	return packageName
-}
-
-func syscalldot() string {
-	if packageName == "syscall" {
-		return ""
-	}
-	return "syscall."
-}
-
-// Param is function parameter
-type Param struct {
-	Name      string
-	Type      string
-	fn        *Fn
-	tmpVarIdx int
-}
-
-// tmpVar returns temp variable name that will be used to represent p during syscall.
-func (p *Param) tmpVar() string {
-	if p.tmpVarIdx < 0 {
-		p.tmpVarIdx = p.fn.curTmpVarIdx
-		p.fn.curTmpVarIdx++
-	}
-	return fmt.Sprintf("_p%d", p.tmpVarIdx)
-}
-
-// BoolTmpVarCode returns source code for bool temp variable.
-func (p *Param) BoolTmpVarCode() string {
-	const code = `var %s uint32
-	if %s {
-		%s = 1
-	} else {
-		%s = 0
-	}`
-	tmp := p.tmpVar()
-	return fmt.Sprintf(code, tmp, p.Name, tmp, tmp)
-}
-
-// SliceTmpVarCode returns source code for slice temp variable.
-func (p *Param) SliceTmpVarCode() string {
-	const code = `var %s *%s
-	if len(%s) > 0 {
-		%s = &%s[0]
-	}`
-	tmp := p.tmpVar()
-	return fmt.Sprintf(code, tmp, p.Type[2:], p.Name, tmp, p.Name)
-}
-
-// StringTmpVarCode returns source code for string temp variable.
-func (p *Param) StringTmpVarCode() string {
-	errvar := p.fn.Rets.ErrorVarName()
-	if errvar == "" {
-		errvar = "_"
-	}
-	tmp := p.tmpVar()
-	const code = `var %s %s
-	%s, %s = %s(%s)`
-	s := fmt.Sprintf(code, tmp, p.fn.StrconvType(), tmp, errvar, p.fn.StrconvFunc(), p.Name)
-	if errvar == "-" {
-		return s
-	}
-	const morecode = `
-	if %s != nil {
-		return
-	}`
-	return s + fmt.Sprintf(morecode, errvar)
-}
-
-// TmpVarCode returns source code for temp variable.
-func (p *Param) TmpVarCode() string {
-	switch {
-	case p.Type == "bool":
-		return p.BoolTmpVarCode()
-	case strings.HasPrefix(p.Type, "[]"):
-		return p.SliceTmpVarCode()
-	default:
-		return ""
-	}
-}
-
-// TmpVarHelperCode returns source code for helper's temp variable.
-func (p *Param) TmpVarHelperCode() string {
-	if p.Type != "string" {
-		return ""
-	}
-	return p.StringTmpVarCode()
-}
-
-// SyscallArgList returns source code fragments representing p parameter
-// in syscall. Slices are translated into 2 syscall parameters: pointer to
-// the first element and length.
-func (p *Param) SyscallArgList() []string {
-	t := p.HelperType()
-	var s string
-	switch {
-	case t[0] == '*':
-		s = fmt.Sprintf("unsafe.Pointer(%s)", p.Name)
-	case t == "bool":
-		s = p.tmpVar()
-	case strings.HasPrefix(t, "[]"):
-		return []string{
-			fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.tmpVar()),
-			fmt.Sprintf("uintptr(len(%s))", p.Name),
-		}
-	default:
-		s = p.Name
-	}
-	return []string{fmt.Sprintf("uintptr(%s)", s)}
-}
-
-// IsError determines if p parameter is used to return error.
-func (p *Param) IsError() bool {
-	return p.Name == "err" && p.Type == "error"
-}
-
-// HelperType returns type of parameter p used in helper function.
-func (p *Param) HelperType() string {
-	if p.Type == "string" {
-		return p.fn.StrconvType()
-	}
-	return p.Type
-}
-
-// join concatenates parameters ps into a string with sep separator.
-// Each parameter is converted into string by applying fn to it
-// before conversion.
-func join(ps []*Param, fn func(*Param) string, sep string) string {
-	if len(ps) == 0 {
-		return ""
-	}
-	a := make([]string, 0)
-	for _, p := range ps {
-		a = append(a, fn(p))
-	}
-	return strings.Join(a, sep)
-}
-
-// Rets describes function return parameters.
-type Rets struct {
-	Name         string
-	Type         string
-	ReturnsError bool
-	FailCond     string
-}
-
-// ErrorVarName returns error variable name for r.
-func (r *Rets) ErrorVarName() string {
-	if r.ReturnsError {
-		return "err"
-	}
-	if r.Type == "error" {
-		return r.Name
-	}
-	return ""
-}
-
-// ToParams converts r into slice of *Param.
-func (r *Rets) ToParams() []*Param {
-	ps := make([]*Param, 0)
-	if len(r.Name) > 0 {
-		ps = append(ps, &Param{Name: r.Name, Type: r.Type})
-	}
-	if r.ReturnsError {
-		ps = append(ps, &Param{Name: "err", Type: "error"})
-	}
-	return ps
-}
-
-// List returns source code of syscall return parameters.
-func (r *Rets) List() string {
-	s := join(r.ToParams(), func(p *Param) string { return p.Name + " " + p.Type }, ", ")
-	if len(s) > 0 {
-		s = "(" + s + ")"
-	}
-	return s
-}
-
-// PrintList returns source code of trace printing part correspondent
-// to syscall return values.
-func (r *Rets) PrintList() string {
-	return join(r.ToParams(), func(p *Param) string { return fmt.Sprintf(`"%s=", %s, `, p.Name, p.Name) }, `", ", `)
-}
-
-// SetReturnValuesCode returns source code that accepts syscall return values.
-func (r *Rets) SetReturnValuesCode() string {
-	if r.Name == "" && !r.ReturnsError {
-		return ""
-	}
-	retvar := "r0"
-	if r.Name == "" {
-		retvar = "r1"
-	}
-	errvar := "_"
-	if r.ReturnsError {
-		errvar = "e1"
-	}
-	return fmt.Sprintf("%s, _, %s := ", retvar, errvar)
-}
-
-func (r *Rets) useLongHandleErrorCode(retvar string) string {
-	const code = `if %s {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = %sEINVAL
-		}
-	}`
-	cond := retvar + " == 0"
-	if r.FailCond != "" {
-		cond = strings.Replace(r.FailCond, "failretval", retvar, 1)
-	}
-	return fmt.Sprintf(code, cond, syscalldot())
-}
-
-// SetErrorCode returns source code that sets return parameters.
-func (r *Rets) SetErrorCode() string {
-	const code = `if r0 != 0 {
-		%s = %sErrno(r0)
-	}`
-	const hrCode = `if int32(r0) < 0 {
-		if r0&0x1fff0000 == 0x00070000 {
-			r0 &= 0xffff
-		}
-		%s = %sErrno(r0)
-	}`
-	if r.Name == "" && !r.ReturnsError {
-		return ""
-	}
-	if r.Name == "" {
-		return r.useLongHandleErrorCode("r1")
-	}
-	if r.Type == "error" {
-		if r.Name == "hr" {
-			return fmt.Sprintf(hrCode, r.Name, syscalldot())
-		} else {
-			return fmt.Sprintf(code, r.Name, syscalldot())
-		}
-	}
-	s := ""
-	switch {
-	case r.Type[0] == '*':
-		s = fmt.Sprintf("%s = (%s)(unsafe.Pointer(r0))", r.Name, r.Type)
-	case r.Type == "bool":
-		s = fmt.Sprintf("%s = r0 != 0", r.Name)
-	default:
-		s = fmt.Sprintf("%s = %s(r0)", r.Name, r.Type)
-	}
-	if !r.ReturnsError {
-		return s
-	}
-	return s + "\n\t" + r.useLongHandleErrorCode(r.Name)
-}
-
-// Fn describes syscall function.
-type Fn struct {
-	Name        string
-	Params      []*Param
-	Rets        *Rets
-	PrintTrace  bool
-	confirmproc bool
-	dllname     string
-	dllfuncname string
-	src         string
-	// TODO: get rid of this field and just use parameter index instead
-	curTmpVarIdx int // insure tmp variables have uniq names
-}
-
-// extractParams parses s to extract function parameters.
-func extractParams(s string, f *Fn) ([]*Param, error) {
-	s = trim(s)
-	if s == "" {
-		return nil, nil
-	}
-	a := strings.Split(s, ",")
-	ps := make([]*Param, len(a))
-	for i := range ps {
-		s2 := trim(a[i])
-		b := strings.Split(s2, " ")
-		if len(b) != 2 {
-			b = strings.Split(s2, "\t")
-			if len(b) != 2 {
-				return nil, errors.New("Could not extract function parameter from \"" + s2 + "\"")
-			}
-		}
-		ps[i] = &Param{
-			Name:      trim(b[0]),
-			Type:      trim(b[1]),
-			fn:        f,
-			tmpVarIdx: -1,
-		}
-	}
-	return ps, nil
-}
-
-// extractSection extracts text out of string s starting after start
-// and ending just before end. found return value will indicate success,
-// and prefix, body and suffix will contain correspondent parts of string s.
-func extractSection(s string, start, end rune) (prefix, body, suffix string, found bool) {
-	s = trim(s)
-	if strings.HasPrefix(s, string(start)) {
-		// no prefix
-		body = s[1:]
-	} else {
-		a := strings.SplitN(s, string(start), 2)
-		if len(a) != 2 {
-			return "", "", s, false
-		}
-		prefix = a[0]
-		body = a[1]
-	}
-	a := strings.SplitN(body, string(end), 2)
-	if len(a) != 2 {
-		return "", "", "", false
-	}
-	return prefix, a[0], a[1], true
-}
-
-// newFn parses string s and return created function Fn.
-func newFn(s string) (*Fn, error) {
-	s = trim(s)
-	f := &Fn{
-		Rets:       &Rets{},
-		src:        s,
-		PrintTrace: *printTraceFlag,
-	}
-	// function name and args
-	prefix, body, s, found := extractSection(s, '(', ')')
-	if !found || prefix == "" {
-		return nil, errors.New("Could not extract function name and parameters from \"" + f.src + "\"")
-	}
-	f.Name = prefix
-	var err error
-	f.Params, err = extractParams(body, f)
-	if err != nil {
-		return nil, err
-	}
-	// return values
-	_, body, s, found = extractSection(s, '(', ')')
-	if found {
-		r, err := extractParams(body, f)
-		if err != nil {
-			return nil, err
-		}
-		switch len(r) {
-		case 0:
-		case 1:
-			if r[0].IsError() {
-				f.Rets.ReturnsError = true
-			} else {
-				f.Rets.Name = r[0].Name
-				f.Rets.Type = r[0].Type
-			}
-		case 2:
-			if !r[1].IsError() {
-				return nil, errors.New("Only last windows error is allowed as second return value in \"" + f.src + "\"")
-			}
-			f.Rets.ReturnsError = true
-			f.Rets.Name = r[0].Name
-			f.Rets.Type = r[0].Type
-		default:
-			return nil, errors.New("Too many return values in \"" + f.src + "\"")
-		}
-	}
-	// fail condition
-	_, body, s, found = extractSection(s, '[', ']')
-	if found {
-		f.Rets.FailCond = body
-	}
-	// dll and dll function names
-	s = trim(s)
-	if s == "" {
-		return f, nil
-	}
-	if !strings.HasPrefix(s, "=") {
-		return nil, errors.New("Could not extract dll name from \"" + f.src + "\"")
-	}
-	s = trim(s[1:])
-	a := strings.Split(s, ".")
-	switch len(a) {
-	case 1:
-		f.dllfuncname = a[0]
-	case 2:
-		f.dllname = a[0]
-		f.dllfuncname = a[1]
-	default:
-		return nil, errors.New("Could not extract dll name from \"" + f.src + "\"")
-	}
-	if f.dllfuncname[len(f.dllfuncname)-1] == '?' {
-		f.confirmproc = true
-		f.dllfuncname = f.dllfuncname[0 : len(f.dllfuncname)-1]
-	}
-	return f, nil
-}
-
-// DLLName returns DLL name for function f.
-func (f *Fn) DLLName() string {
-	if f.dllname == "" {
-		return "kernel32"
-	}
-	return f.dllname
-}
-
-// DLLName returns DLL function name for function f.
-func (f *Fn) DLLFuncName() string {
-	if f.dllfuncname == "" {
-		return f.Name
-	}
-	return f.dllfuncname
-}
-
-func (f *Fn) ConfirmProc() bool {
-	return f.confirmproc
-}
-
-// ParamList returns source code for function f parameters.
-func (f *Fn) ParamList() string {
-	return join(f.Params, func(p *Param) string { return p.Name + " " + p.Type }, ", ")
-}
-
-// HelperParamList returns source code for helper function f parameters.
-func (f *Fn) HelperParamList() string {
-	return join(f.Params, func(p *Param) string { return p.Name + " " + p.HelperType() }, ", ")
-}
-
-// ParamPrintList returns source code of trace printing part correspondent
-// to syscall input parameters.
-func (f *Fn) ParamPrintList() string {
-	return join(f.Params, func(p *Param) string { return fmt.Sprintf(`"%s=", %s, `, p.Name, p.Name) }, `", ", `)
-}
-
-// ParamCount return number of syscall parameters for function f.
-func (f *Fn) ParamCount() int {
-	n := 0
-	for _, p := range f.Params {
-		n += len(p.SyscallArgList())
-	}
-	return n
-}
-
-// SyscallParamCount determines which version of Syscall/Syscall6/Syscall9/...
-// to use. It returns parameter count for correspondent SyscallX function.
-func (f *Fn) SyscallParamCount() int {
-	n := f.ParamCount()
-	switch {
-	case n <= 3:
-		return 3
-	case n <= 6:
-		return 6
-	case n <= 9:
-		return 9
-	case n <= 12:
-		return 12
-	case n <= 15:
-		return 15
-	default:
-		panic("too many arguments to system call")
-	}
-}
-
-// Syscall determines which SyscallX function to use for function f.
-func (f *Fn) Syscall() string {
-	c := f.SyscallParamCount()
-	if c == 3 {
-		return syscalldot() + "Syscall"
-	}
-	return syscalldot() + "Syscall" + strconv.Itoa(c)
-}
-
-// SyscallParamList returns source code for SyscallX parameters for function f.
-func (f *Fn) SyscallParamList() string {
-	a := make([]string, 0)
-	for _, p := range f.Params {
-		a = append(a, p.SyscallArgList()...)
-	}
-	for len(a) < f.SyscallParamCount() {
-		a = append(a, "0")
-	}
-	return strings.Join(a, ", ")
-}
-
-// HelperCallParamList returns source code of call into function f helper.
-func (f *Fn) HelperCallParamList() string {
-	a := make([]string, 0, len(f.Params))
-	for _, p := range f.Params {
-		s := p.Name
-		if p.Type == "string" {
-			s = p.tmpVar()
-		}
-		a = append(a, s)
-	}
-	return strings.Join(a, ", ")
-}
-
-// IsUTF16 is true, if f is W (utf16) function. It is false
-// for all A (ascii) functions.
-func (_ *Fn) IsUTF16() bool {
-	return true
-}
-
-// StrconvFunc returns name of Go string to OS string function for f.
-func (f *Fn) StrconvFunc() string {
-	if f.IsUTF16() {
-		return syscalldot() + "UTF16PtrFromString"
-	}
-	return syscalldot() + "BytePtrFromString"
-}
-
-// StrconvType returns Go type name used for OS string for f.
-func (f *Fn) StrconvType() string {
-	if f.IsUTF16() {
-		return "*uint16"
-	}
-	return "*byte"
-}
-
-// HasStringParam is true, if f has at least one string parameter.
-// Otherwise it is false.
-func (f *Fn) HasStringParam() bool {
-	for _, p := range f.Params {
-		if p.Type == "string" {
-			return true
-		}
-	}
-	return false
-}
-
-var uniqDllFuncName = make(map[string]bool)
-
-// IsNotDuplicate is true if f is not a duplicated function
-func (f *Fn) IsNotDuplicate() bool {
-	funcName := f.DLLFuncName()
-	if uniqDllFuncName[funcName] == false {
-		uniqDllFuncName[funcName] = true
-		return true
-	}
-	return false
-}
-
-// HelperName returns name of function f helper.
-func (f *Fn) HelperName() string {
-	if !f.HasStringParam() {
-		return f.Name
-	}
-	return "_" + f.Name
-}
-
-// Source files and functions.
-type Source struct {
-	Funcs           []*Fn
-	Files           []string
-	StdLibImports   []string
-	ExternalImports []string
-}
-
-func (src *Source) Import(pkg string) {
-	src.StdLibImports = append(src.StdLibImports, pkg)
-	sort.Strings(src.StdLibImports)
-}
-
-func (src *Source) ExternalImport(pkg string) {
-	src.ExternalImports = append(src.ExternalImports, pkg)
-	sort.Strings(src.ExternalImports)
-}
-
-// ParseFiles parses files listed in fs and extracts all syscall
-// functions listed in  sys comments. It returns source files
-// and functions collection *Source if successful.
-func ParseFiles(fs []string) (*Source, error) {
-	src := &Source{
-		Funcs: make([]*Fn, 0),
-		Files: make([]string, 0),
-		StdLibImports: []string{
-			"unsafe",
-		},
-		ExternalImports: make([]string, 0),
-	}
-	for _, file := range fs {
-		if err := src.ParseFile(file); err != nil {
-			return nil, err
-		}
-	}
-	return src, nil
-}
-
-// DLLs return dll names for a source set src.
-func (src *Source) DLLs() []string {
-	uniq := make(map[string]bool)
-	r := make([]string, 0)
-	for _, f := range src.Funcs {
-		name := f.DLLName()
-		if _, found := uniq[name]; !found {
-			uniq[name] = true
-			r = append(r, name)
-		}
-	}
-	return r
-}
-
-// ParseFile adds additional file path to a source set src.
-func (src *Source) ParseFile(path string) error {
-	file, err := os.Open(path)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	s := bufio.NewScanner(file)
-	for s.Scan() {
-		t := trim(s.Text())
-		if len(t) < 7 {
-			continue
-		}
-		if !strings.HasPrefix(t, "//sys") {
-			continue
-		}
-		t = t[5:]
-		if !(t[0] == ' ' || t[0] == '\t') {
-			continue
-		}
-		f, err := newFn(t[1:])
-		if err != nil {
-			return err
-		}
-		src.Funcs = append(src.Funcs, f)
-	}
-	if err := s.Err(); err != nil {
-		return err
-	}
-	src.Files = append(src.Files, path)
-
-	// get package name
-	fset := token.NewFileSet()
-	_, err = file.Seek(0, 0)
-	if err != nil {
-		return err
-	}
-	pkg, err := parser.ParseFile(fset, "", file, parser.PackageClauseOnly)
-	if err != nil {
-		return err
-	}
-	packageName = pkg.Name.Name
-
-	return nil
-}
-
-// IsStdRepo returns true if src is part of standard library.
-func (src *Source) IsStdRepo() (bool, error) {
-	if len(src.Files) == 0 {
-		return false, errors.New("no input files provided")
-	}
-	abspath, err := filepath.Abs(src.Files[0])
-	if err != nil {
-		return false, err
-	}
-	goroot := runtime.GOROOT()
-	if runtime.GOOS == "windows" {
-		abspath = strings.ToLower(abspath)
-		goroot = strings.ToLower(goroot)
-	}
-	sep := string(os.PathSeparator)
-	if !strings.HasSuffix(goroot, sep) {
-		goroot += sep
-	}
-	return strings.HasPrefix(abspath, goroot), nil
-}
-
-// Generate output source file from a source set src.
-func (src *Source) Generate(w io.Writer) error {
-	const (
-		pkgStd         = iota // any package in std library
-		pkgXSysWindows        // x/sys/windows package
-		pkgOther
-	)
-	isStdRepo, err := src.IsStdRepo()
-	if err != nil {
-		return err
-	}
-	var pkgtype int
-	switch {
-	case isStdRepo:
-		pkgtype = pkgStd
-	case packageName == "windows":
-		// TODO: this needs better logic than just using package name
-		pkgtype = pkgXSysWindows
-	default:
-		pkgtype = pkgOther
-	}
-	if *systemDLL {
-		switch pkgtype {
-		case pkgStd:
-			src.Import("internal/syscall/windows/sysdll")
-		case pkgXSysWindows:
-		default:
-			src.ExternalImport("golang.org/x/sys/windows")
-		}
-	}
-	if *winio {
-		src.ExternalImport("github.com/Microsoft/go-winio")
-	}
-	if packageName != "syscall" {
-		src.Import("syscall")
-	}
-	funcMap := template.FuncMap{
-		"packagename": packagename,
-		"syscalldot":  syscalldot,
-		"newlazydll": func(dll string) string {
-			arg := "\"" + dll + ".dll\""
-			if !*systemDLL {
-				return syscalldot() + "NewLazyDLL(" + arg + ")"
-			}
-			if strings.HasPrefix(dll, "api_") || strings.HasPrefix(dll, "ext_") {
-				arg = strings.Replace(arg, "_", "-", -1)
-			}
-			switch pkgtype {
-			case pkgStd:
-				return syscalldot() + "NewLazyDLL(sysdll.Add(" + arg + "))"
-			case pkgXSysWindows:
-				return "NewLazySystemDLL(" + arg + ")"
-			default:
-				return "windows.NewLazySystemDLL(" + arg + ")"
-			}
-		},
-	}
-	t := template.Must(template.New("main").Funcs(funcMap).Parse(srcTemplate))
-	err = t.Execute(w, src)
-	if err != nil {
-		return errors.New("Failed to execute template: " + err.Error())
-	}
-	return nil
-}
-
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: mksyscall_windows [flags] [path ...]\n")
-	flag.PrintDefaults()
-	os.Exit(1)
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	src, err := ParseFiles(flag.Args())
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	var buf bytes.Buffer
-	if err := src.Generate(&buf); err != nil {
-		log.Fatal(err)
-	}
-
-	data, err := format.Source(buf.Bytes())
-	if err != nil {
-		log.Fatal(err)
-	}
-	if *filename == "" {
-		_, err = os.Stdout.Write(data)
-	} else {
-		err = ioutil.WriteFile(*filename, data, 0644)
-	}
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-
-// TODO: use println instead to print in the following template
-const srcTemplate = `
-
-{{define "main"}}// Code generated mksyscall_windows.exe DO NOT EDIT
-
-package {{packagename}}
-
-import (
-{{range .StdLibImports}}"{{.}}"
-{{end}}
-
-{{range .ExternalImports}}"{{.}}"
-{{end}}
-)
-
-var _ unsafe.Pointer
-
-// Do the interface allocations only once for common
-// Errno values.
-const (
-	errnoERROR_IO_PENDING = 997
-)
-
-var (
-	errERROR_IO_PENDING error = {{syscalldot}}Errno(errnoERROR_IO_PENDING)
-)
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e {{syscalldot}}Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case errnoERROR_IO_PENDING:
-		return errERROR_IO_PENDING
-	}
-	// TODO: add more here, after collecting data on the common
-	// error values see on Windows. (perhaps when running
-	// all.bat?)
-	return e
-}
-
-var (
-{{template "dlls" .}}
-{{template "funcnames" .}})
-{{range .Funcs}}{{if .HasStringParam}}{{template "helperbody" .}}{{end}}{{template "funcbody" .}}{{end}}
-{{end}}
-
-{{/* help functions */}}
-
-{{define "dlls"}}{{range .DLLs}}	mod{{.}} = {{newlazydll .}}
-{{end}}{{end}}
-
-{{define "funcnames"}}{{range .Funcs}}{{if .IsNotDuplicate}}	proc{{.DLLFuncName}} = mod{{.DLLName}}.NewProc("{{.DLLFuncName}}"){{end}}
-{{end}}{{end}}
-
-{{define "helperbody"}}
-func {{.Name}}({{.ParamList}}) {{template "results" .}}{
-{{template "helpertmpvars" .}}	return {{.HelperName}}({{.HelperCallParamList}})
-}
-{{end}}
-
-{{define "funcbody"}}
-func {{.HelperName}}({{.HelperParamList}}) {{template "results" .}}{
-{{template "tmpvars" .}}	{{template "syscallcheck" .}}{{template "syscall" .}}
-{{template "seterror" .}}{{template "printtrace" .}}	return
-}
-{{end}}
-
-{{define "helpertmpvars"}}{{range .Params}}{{if .TmpVarHelperCode}}	{{.TmpVarHelperCode}}
-{{end}}{{end}}{{end}}
-
-{{define "tmpvars"}}{{range .Params}}{{if .TmpVarCode}}	{{.TmpVarCode}}
-{{end}}{{end}}{{end}}
-
-{{define "results"}}{{if .Rets.List}}{{.Rets.List}} {{end}}{{end}}
-
-{{define "syscall"}}{{.Rets.SetReturnValuesCode}}{{.Syscall}}(proc{{.DLLFuncName}}.Addr(), {{.ParamCount}}, {{.SyscallParamList}}){{end}}
-
-{{define "syscallcheck"}}{{if .ConfirmProc}}if {{.Rets.ErrorVarName}} = proc{{.DLLFuncName}}.Find(); {{.Rets.ErrorVarName}} != nil {
-    return
-}
-{{end}}{{end}}
-
-
-{{define "seterror"}}{{if .Rets.SetErrorCode}}	{{.Rets.SetErrorCode}}
-{{end}}{{end}}
-
-{{define "printtrace"}}{{if .PrintTrace}}	print("SYSCALL: {{.Name}}(", {{.ParamPrintList}}") (", {{.Rets.PrintList}}")\n")
-{{end}}{{end}}
-
-`
diff --git a/vendor/github.com/containers/storage/pkg/archive/example_changes.go b/vendor/github.com/containers/storage/pkg/archive/example_changes.go
deleted file mode 100644
index 70f9c5564..000000000
--- a/vendor/github.com/containers/storage/pkg/archive/example_changes.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// +build ignore
-
-// Simple tool to create an archive stream from an old and new directory
-//
-// By default it will stream the comparison of two temporary directories with junk files
-package main
-
-import (
-	"flag"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path"
-
-	"github.com/containers/storage/pkg/archive"
-	"github.com/sirupsen/logrus"
-)
-
-var (
-	flDebug  = flag.Bool("D", false, "debugging output")
-	flNewDir = flag.String("newdir", "", "")
-	flOldDir = flag.String("olddir", "", "")
-	log      = logrus.New()
-)
-
-func main() {
-	flag.Usage = func() {
-		fmt.Println("Produce a tar from comparing two directory paths. By default a demo tar is created of around 200 files (including hardlinks)")
-		fmt.Printf("%s [OPTIONS]\n", os.Args[0])
-		flag.PrintDefaults()
-	}
-	flag.Parse()
-	log.Out = os.Stderr
-	if (len(os.Getenv("DEBUG")) > 0) || *flDebug {
-		logrus.SetLevel(logrus.DebugLevel)
-	}
-	var newDir, oldDir string
-
-	if len(*flNewDir) == 0 {
-		var err error
-		newDir, err = ioutil.TempDir("", "storage-test-newDir")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(newDir)
-		if _, err := prepareUntarSourceDirectory(100, newDir, true); err != nil {
-			log.Fatal(err)
-		}
-	} else {
-		newDir = *flNewDir
-	}
-
-	if len(*flOldDir) == 0 {
-		oldDir, err := ioutil.TempDir("", "storage-test-oldDir")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(oldDir)
-	} else {
-		oldDir = *flOldDir
-	}
-
-	changes, err := archive.ChangesDirs(newDir, oldDir)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	a, err := archive.ExportChanges(newDir, changes)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer a.Close()
-
-	i, err := io.Copy(os.Stdout, a)
-	if err != nil && err != io.EOF {
-		log.Fatal(err)
-	}
-	fmt.Fprintf(os.Stderr, "wrote archive of %d bytes", i)
-}
-
-func prepareUntarSourceDirectory(numberOfFiles int, targetPath string, makeLinks bool) (int, error) {
-	fileData := []byte("fooo")
-	for n := 0; n < numberOfFiles; n++ {
-		fileName := fmt.Sprintf("file-%d", n)
-		if err := ioutil.WriteFile(path.Join(targetPath, fileName), fileData, 0700); err != nil {
-			return 0, err
-		}
-		if makeLinks {
-			if err := os.Link(path.Join(targetPath, fileName), path.Join(targetPath, fileName+"-link")); err != nil {
-				return 0, err
-			}
-		}
-	}
-	totalSize := numberOfFiles * len(fileData)
-	return totalSize, nil
-}
diff --git a/vendor/github.com/docker/docker/pkg/archive/example_changes.go b/vendor/github.com/docker/docker/pkg/archive/example_changes.go
deleted file mode 100644
index 495db809e..000000000
--- a/vendor/github.com/docker/docker/pkg/archive/example_changes.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// +build ignore
-
-// Simple tool to create an archive stream from an old and new directory
-//
-// By default it will stream the comparison of two temporary directories with junk files
-package main
-
-import (
-	"flag"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path"
-
-	"github.com/docker/docker/pkg/archive"
-	"github.com/sirupsen/logrus"
-)
-
-var (
-	flDebug  = flag.Bool("D", false, "debugging output")
-	flNewDir = flag.String("newdir", "", "")
-	flOldDir = flag.String("olddir", "", "")
-	log      = logrus.New()
-)
-
-func main() {
-	flag.Usage = func() {
-		fmt.Println("Produce a tar from comparing two directory paths. By default a demo tar is created of around 200 files (including hardlinks)")
-		fmt.Printf("%s [OPTIONS]\n", os.Args[0])
-		flag.PrintDefaults()
-	}
-	flag.Parse()
-	log.Out = os.Stderr
-	if (len(os.Getenv("DEBUG")) > 0) || *flDebug {
-		logrus.SetLevel(logrus.DebugLevel)
-	}
-	var newDir, oldDir string
-
-	if len(*flNewDir) == 0 {
-		var err error
-		newDir, err = ioutil.TempDir("", "docker-test-newDir")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(newDir)
-		if _, err := prepareUntarSourceDirectory(100, newDir, true); err != nil {
-			log.Fatal(err)
-		}
-	} else {
-		newDir = *flNewDir
-	}
-
-	if len(*flOldDir) == 0 {
-		oldDir, err := ioutil.TempDir("", "docker-test-oldDir")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(oldDir)
-	} else {
-		oldDir = *flOldDir
-	}
-
-	changes, err := archive.ChangesDirs(newDir, oldDir)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	a, err := archive.ExportChanges(newDir, changes)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer a.Close()
-
-	i, err := io.Copy(os.Stdout, a)
-	if err != nil && err != io.EOF {
-		log.Fatal(err)
-	}
-	fmt.Fprintf(os.Stderr, "wrote archive of %d bytes", i)
-}
-
-func prepareUntarSourceDirectory(numberOfFiles int, targetPath string, makeLinks bool) (int, error) {
-	fileData := []byte("fooo")
-	for n := 0; n < numberOfFiles; n++ {
-		fileName := fmt.Sprintf("file-%d", n)
-		if err := ioutil.WriteFile(path.Join(targetPath, fileName), fileData, 0700); err != nil {
-			return 0, err
-		}
-		if makeLinks {
-			if err := os.Link(path.Join(targetPath, fileName), path.Join(targetPath, fileName+"-link")); err != nil {
-				return 0, err
-			}
-		}
-	}
-	totalSize := numberOfFiles * len(fileData)
-	return totalSize, nil
-}
diff --git a/vendor/github.com/klauspost/compress/flate/gen.go b/vendor/github.com/klauspost/compress/flate/gen.go
deleted file mode 100644
index 154c89a48..000000000
--- a/vendor/github.com/klauspost/compress/flate/gen.go
+++ /dev/null
@@ -1,265 +0,0 @@
-// Copyright 2012 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-// This program generates fixedhuff.go
-// Invoke as
-//
-//	go run gen.go -output fixedhuff.go
-
-package main
-
-import (
-	"bytes"
-	"flag"
-	"fmt"
-	"go/format"
-	"io/ioutil"
-	"log"
-)
-
-var filename = flag.String("output", "fixedhuff.go", "output file name")
-
-const maxCodeLen = 16
-
-// Note: the definition of the huffmanDecoder struct is copied from
-// inflate.go, as it is private to the implementation.
-
-// chunk & 15 is number of bits
-// chunk >> 4 is value, including table link
-
-const (
-	huffmanChunkBits  = 9
-	huffmanNumChunks  = 1 << huffmanChunkBits
-	huffmanCountMask  = 15
-	huffmanValueShift = 4
-)
-
-type huffmanDecoder struct {
-	min      int                      // the minimum code length
-	chunks   [huffmanNumChunks]uint32 // chunks as described above
-	links    [][]uint32               // overflow links
-	linkMask uint32                   // mask the width of the link table
-}
-
-// Initialize Huffman decoding tables from array of code lengths.
-// Following this function, h is guaranteed to be initialized into a complete
-// tree (i.e., neither over-subscribed nor under-subscribed). The exception is a
-// degenerate case where the tree has only a single symbol with length 1. Empty
-// trees are permitted.
-func (h *huffmanDecoder) init(bits []int) bool {
-	// Sanity enables additional runtime tests during Huffman
-	// table construction.  It's intended to be used during
-	// development to supplement the currently ad-hoc unit tests.
-	const sanity = false
-
-	if h.min != 0 {
-		*h = huffmanDecoder{}
-	}
-
-	// Count number of codes of each length,
-	// compute min and max length.
-	var count [maxCodeLen]int
-	var min, max int
-	for _, n := range bits {
-		if n == 0 {
-			continue
-		}
-		if min == 0 || n < min {
-			min = n
-		}
-		if n > max {
-			max = n
-		}
-		count[n]++
-	}
-
-	// Empty tree. The decompressor.huffSym function will fail later if the tree
-	// is used. Technically, an empty tree is only valid for the HDIST tree and
-	// not the HCLEN and HLIT tree. However, a stream with an empty HCLEN tree
-	// is guaranteed to fail since it will attempt to use the tree to decode the
-	// codes for the HLIT and HDIST trees. Similarly, an empty HLIT tree is
-	// guaranteed to fail later since the compressed data section must be
-	// composed of at least one symbol (the end-of-block marker).
-	if max == 0 {
-		return true
-	}
-
-	code := 0
-	var nextcode [maxCodeLen]int
-	for i := min; i <= max; i++ {
-		code <<= 1
-		nextcode[i] = code
-		code += count[i]
-	}
-
-	// Check that the coding is complete (i.e., that we've
-	// assigned all 2-to-the-max possible bit sequences).
-	// Exception: To be compatible with zlib, we also need to
-	// accept degenerate single-code codings.  See also
-	// TestDegenerateHuffmanCoding.
-	if code != 1<<uint(max) && !(code == 1 && max == 1) {
-		return false
-	}
-
-	h.min = min
-	if max > huffmanChunkBits {
-		numLinks := 1 << (uint(max) - huffmanChunkBits)
-		h.linkMask = uint32(numLinks - 1)
-
-		// create link tables
-		link := nextcode[huffmanChunkBits+1] >> 1
-		h.links = make([][]uint32, huffmanNumChunks-link)
-		for j := uint(link); j < huffmanNumChunks; j++ {
-			reverse := int(reverseByte[j>>8]) | int(reverseByte[j&0xff])<<8
-			reverse >>= uint(16 - huffmanChunkBits)
-			off := j - uint(link)
-			if sanity && h.chunks[reverse] != 0 {
-				panic("impossible: overwriting existing chunk")
-			}
-			h.chunks[reverse] = uint32(off<<huffmanValueShift | (huffmanChunkBits + 1))
-			h.links[off] = make([]uint32, numLinks)
-		}
-	}
-
-	for i, n := range bits {
-		if n == 0 {
-			continue
-		}
-		code := nextcode[n]
-		nextcode[n]++
-		chunk := uint32(i<<huffmanValueShift | n)
-		reverse := int(reverseByte[code>>8]) | int(reverseByte[code&0xff])<<8
-		reverse >>= uint(16 - n)
-		if n <= huffmanChunkBits {
-			for off := reverse; off < len(h.chunks); off += 1 << uint(n) {
-				// We should never need to overwrite
-				// an existing chunk.  Also, 0 is
-				// never a valid chunk, because the
-				// lower 4 "count" bits should be
-				// between 1 and 15.
-				if sanity && h.chunks[off] != 0 {
-					panic("impossible: overwriting existing chunk")
-				}
-				h.chunks[off] = chunk
-			}
-		} else {
-			j := reverse & (huffmanNumChunks - 1)
-			if sanity && h.chunks[j]&huffmanCountMask != huffmanChunkBits+1 {
-				// Longer codes should have been
-				// associated with a link table above.
-				panic("impossible: not an indirect chunk")
-			}
-			value := h.chunks[j] >> huffmanValueShift
-			linktab := h.links[value]
-			reverse >>= huffmanChunkBits
-			for off := reverse; off < len(linktab); off += 1 << uint(n-huffmanChunkBits) {
-				if sanity && linktab[off] != 0 {
-					panic("impossible: overwriting existing chunk")
-				}
-				linktab[off] = chunk
-			}
-		}
-	}
-
-	if sanity {
-		// Above we've sanity checked that we never overwrote
-		// an existing entry.  Here we additionally check that
-		// we filled the tables completely.
-		for i, chunk := range h.chunks {
-			if chunk == 0 {
-				// As an exception, in the degenerate
-				// single-code case, we allow odd
-				// chunks to be missing.
-				if code == 1 && i%2 == 1 {
-					continue
-				}
-				panic("impossible: missing chunk")
-			}
-		}
-		for _, linktab := range h.links {
-			for _, chunk := range linktab {
-				if chunk == 0 {
-					panic("impossible: missing chunk")
-				}
-			}
-		}
-	}
-
-	return true
-}
-
-func main() {
-	flag.Parse()
-
-	var h huffmanDecoder
-	var bits [288]int
-	initReverseByte()
-	for i := 0; i < 144; i++ {
-		bits[i] = 8
-	}
-	for i := 144; i < 256; i++ {
-		bits[i] = 9
-	}
-	for i := 256; i < 280; i++ {
-		bits[i] = 7
-	}
-	for i := 280; i < 288; i++ {
-		bits[i] = 8
-	}
-	h.init(bits[:])
-	if h.links != nil {
-		log.Fatal("Unexpected links table in fixed Huffman decoder")
-	}
-
-	var buf bytes.Buffer
-
-	fmt.Fprintf(&buf, `// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.`+"\n\n")
-
-	fmt.Fprintln(&buf, "package flate")
-	fmt.Fprintln(&buf)
-	fmt.Fprintln(&buf, "// autogenerated by go run gen.go -output fixedhuff.go, DO NOT EDIT")
-	fmt.Fprintln(&buf)
-	fmt.Fprintln(&buf, "var fixedHuffmanDecoder = huffmanDecoder{")
-	fmt.Fprintf(&buf, "\t%d,\n", h.min)
-	fmt.Fprintln(&buf, "\t[huffmanNumChunks]uint32{")
-	for i := 0; i < huffmanNumChunks; i++ {
-		if i&7 == 0 {
-			fmt.Fprintf(&buf, "\t\t")
-		} else {
-			fmt.Fprintf(&buf, " ")
-		}
-		fmt.Fprintf(&buf, "0x%04x,", h.chunks[i])
-		if i&7 == 7 {
-			fmt.Fprintln(&buf)
-		}
-	}
-	fmt.Fprintln(&buf, "\t},")
-	fmt.Fprintln(&buf, "\tnil, 0,")
-	fmt.Fprintln(&buf, "}")
-
-	data, err := format.Source(buf.Bytes())
-	if err != nil {
-		log.Fatal(err)
-	}
-	err = ioutil.WriteFile(*filename, data, 0644)
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-
-var reverseByte [256]byte
-
-func initReverseByte() {
-	for x := 0; x < 256; x++ {
-		var result byte
-		for i := uint(0); i < 8; i++ {
-			result |= byte(((x >> i) & 1) << (7 - i))
-		}
-		reverseByte[x] = result
-	}
-}
diff --git a/vendor/github.com/klauspost/cpuid/private-gen.go b/vendor/github.com/klauspost/cpuid/private-gen.go
deleted file mode 100644
index 437333d29..000000000
--- a/vendor/github.com/klauspost/cpuid/private-gen.go
+++ /dev/null
@@ -1,476 +0,0 @@
-// +build ignore
-
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"go/ast"
-	"go/parser"
-	"go/printer"
-	"go/token"
-	"io"
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-var inFiles = []string{"cpuid.go", "cpuid_test.go"}
-var copyFiles = []string{"cpuid_amd64.s", "cpuid_386.s", "detect_ref.go", "detect_intel.go"}
-var fileSet = token.NewFileSet()
-var reWrites = []rewrite{
-	initRewrite("CPUInfo -> cpuInfo"),
-	initRewrite("Vendor -> vendor"),
-	initRewrite("Flags -> flags"),
-	initRewrite("Detect -> detect"),
-	initRewrite("CPU -> cpu"),
-}
-var excludeNames = map[string]bool{"string": true, "join": true, "trim": true,
-	// cpuid_test.go
-	"t": true, "println": true, "logf": true, "log": true, "fatalf": true, "fatal": true,
-}
-
-var excludePrefixes = []string{"test", "benchmark"}
-
-func main() {
-	Package := "private"
-	parserMode := parser.ParseComments
-	exported := make(map[string]rewrite)
-	for _, file := range inFiles {
-		in, err := os.Open(file)
-		if err != nil {
-			log.Fatalf("opening input", err)
-		}
-
-		src, err := ioutil.ReadAll(in)
-		if err != nil {
-			log.Fatalf("reading input", err)
-		}
-
-		astfile, err := parser.ParseFile(fileSet, file, src, parserMode)
-		if err != nil {
-			log.Fatalf("parsing input", err)
-		}
-
-		for _, rw := range reWrites {
-			astfile = rw(astfile)
-		}
-
-		// Inspect the AST and print all identifiers and literals.
-		var startDecl token.Pos
-		var endDecl token.Pos
-		ast.Inspect(astfile, func(n ast.Node) bool {
-			var s string
-			switch x := n.(type) {
-			case *ast.Ident:
-				if x.IsExported() {
-					t := strings.ToLower(x.Name)
-					for _, pre := range excludePrefixes {
-						if strings.HasPrefix(t, pre) {
-							return true
-						}
-					}
-					if excludeNames[t] != true {
-						//if x.Pos() > startDecl && x.Pos() < endDecl {
-						exported[x.Name] = initRewrite(x.Name + " -> " + t)
-					}
-				}
-
-			case *ast.GenDecl:
-				if x.Tok == token.CONST && x.Lparen > 0 {
-					startDecl = x.Lparen
-					endDecl = x.Rparen
-					// fmt.Printf("Decl:%s -> %s\n", fileSet.Position(startDecl), fileSet.Position(endDecl))
-				}
-			}
-			if s != "" {
-				fmt.Printf("%s:\t%s\n", fileSet.Position(n.Pos()), s)
-			}
-			return true
-		})
-
-		for _, rw := range exported {
-			astfile = rw(astfile)
-		}
-
-		var buf bytes.Buffer
-
-		printer.Fprint(&buf, fileSet, astfile)
-
-		// Remove package documentation and insert information
-		s := buf.String()
-		ind := strings.Index(buf.String(), "\npackage cpuid")
-		s = s[ind:]
-		s = "// Generated, DO NOT EDIT,\n" +
-			"// but copy it to your own project and rename the package.\n" +
-			"// See more at http://github.com/klauspost/cpuid\n" +
-			s
-
-		outputName := Package + string(os.PathSeparator) + file
-
-		err = ioutil.WriteFile(outputName, []byte(s), 0644)
-		if err != nil {
-			log.Fatalf("writing output: %s", err)
-		}
-		log.Println("Generated", outputName)
-	}
-
-	for _, file := range copyFiles {
-		dst := ""
-		if strings.HasPrefix(file, "cpuid") {
-			dst = Package + string(os.PathSeparator) + file
-		} else {
-			dst = Package + string(os.PathSeparator) + "cpuid_" + file
-		}
-		err := copyFile(file, dst)
-		if err != nil {
-			log.Fatalf("copying file: %s", err)
-		}
-		log.Println("Copied", dst)
-	}
-}
-
-// CopyFile copies a file from src to dst. If src and dst files exist, and are
-// the same, then return success. Copy the file contents from src to dst.
-func copyFile(src, dst string) (err error) {
-	sfi, err := os.Stat(src)
-	if err != nil {
-		return
-	}
-	if !sfi.Mode().IsRegular() {
-		// cannot copy non-regular files (e.g., directories,
-		// symlinks, devices, etc.)
-		return fmt.Errorf("CopyFile: non-regular source file %s (%q)", sfi.Name(), sfi.Mode().String())
-	}
-	dfi, err := os.Stat(dst)
-	if err != nil {
-		if !os.IsNotExist(err) {
-			return
-		}
-	} else {
-		if !(dfi.Mode().IsRegular()) {
-			return fmt.Errorf("CopyFile: non-regular destination file %s (%q)", dfi.Name(), dfi.Mode().String())
-		}
-		if os.SameFile(sfi, dfi) {
-			return
-		}
-	}
-	err = copyFileContents(src, dst)
-	return
-}
-
-// copyFileContents copies the contents of the file named src to the file named
-// by dst. The file will be created if it does not already exist. If the
-// destination file exists, all it's contents will be replaced by the contents
-// of the source file.
-func copyFileContents(src, dst string) (err error) {
-	in, err := os.Open(src)
-	if err != nil {
-		return
-	}
-	defer in.Close()
-	out, err := os.Create(dst)
-	if err != nil {
-		return
-	}
-	defer func() {
-		cerr := out.Close()
-		if err == nil {
-			err = cerr
-		}
-	}()
-	if _, err = io.Copy(out, in); err != nil {
-		return
-	}
-	err = out.Sync()
-	return
-}
-
-type rewrite func(*ast.File) *ast.File
-
-// Mostly copied from gofmt
-func initRewrite(rewriteRule string) rewrite {
-	f := strings.Split(rewriteRule, "->")
-	if len(f) != 2 {
-		fmt.Fprintf(os.Stderr, "rewrite rule must be of the form 'pattern -> replacement'\n")
-		os.Exit(2)
-	}
-	pattern := parseExpr(f[0], "pattern")
-	replace := parseExpr(f[1], "replacement")
-	return func(p *ast.File) *ast.File { return rewriteFile(pattern, replace, p) }
-}
-
-// parseExpr parses s as an expression.
-// It might make sense to expand this to allow statement patterns,
-// but there are problems with preserving formatting and also
-// with what a wildcard for a statement looks like.
-func parseExpr(s, what string) ast.Expr {
-	x, err := parser.ParseExpr(s)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "parsing %s %s at %s\n", what, s, err)
-		os.Exit(2)
-	}
-	return x
-}
-
-// Keep this function for debugging.
-/*
-func dump(msg string, val reflect.Value) {
-	fmt.Printf("%s:\n", msg)
-	ast.Print(fileSet, val.Interface())
-	fmt.Println()
-}
-*/
-
-// rewriteFile applies the rewrite rule 'pattern -> replace' to an entire file.
-func rewriteFile(pattern, replace ast.Expr, p *ast.File) *ast.File {
-	cmap := ast.NewCommentMap(fileSet, p, p.Comments)
-	m := make(map[string]reflect.Value)
-	pat := reflect.ValueOf(pattern)
-	repl := reflect.ValueOf(replace)
-
-	var rewriteVal func(val reflect.Value) reflect.Value
-	rewriteVal = func(val reflect.Value) reflect.Value {
-		// don't bother if val is invalid to start with
-		if !val.IsValid() {
-			return reflect.Value{}
-		}
-		for k := range m {
-			delete(m, k)
-		}
-		val = apply(rewriteVal, val)
-		if match(m, pat, val) {
-			val = subst(m, repl, reflect.ValueOf(val.Interface().(ast.Node).Pos()))
-		}
-		return val
-	}
-
-	r := apply(rewriteVal, reflect.ValueOf(p)).Interface().(*ast.File)
-	r.Comments = cmap.Filter(r).Comments() // recreate comments list
-	return r
-}
-
-// set is a wrapper for x.Set(y); it protects the caller from panics if x cannot be changed to y.
-func set(x, y reflect.Value) {
-	// don't bother if x cannot be set or y is invalid
-	if !x.CanSet() || !y.IsValid() {
-		return
-	}
-	defer func() {
-		if x := recover(); x != nil {
-			if s, ok := x.(string); ok &&
-				(strings.Contains(s, "type mismatch") || strings.Contains(s, "not assignable")) {
-				// x cannot be set to y - ignore this rewrite
-				return
-			}
-			panic(x)
-		}
-	}()
-	x.Set(y)
-}
-
-// Values/types for special cases.
-var (
-	objectPtrNil = reflect.ValueOf((*ast.Object)(nil))
-	scopePtrNil  = reflect.ValueOf((*ast.Scope)(nil))
-
-	identType     = reflect.TypeOf((*ast.Ident)(nil))
-	objectPtrType = reflect.TypeOf((*ast.Object)(nil))
-	positionType  = reflect.TypeOf(token.NoPos)
-	callExprType  = reflect.TypeOf((*ast.CallExpr)(nil))
-	scopePtrType  = reflect.TypeOf((*ast.Scope)(nil))
-)
-
-// apply replaces each AST field x in val with f(x), returning val.
-// To avoid extra conversions, f operates on the reflect.Value form.
-func apply(f func(reflect.Value) reflect.Value, val reflect.Value) reflect.Value {
-	if !val.IsValid() {
-		return reflect.Value{}
-	}
-
-	// *ast.Objects introduce cycles and are likely incorrect after
-	// rewrite; don't follow them but replace with nil instead
-	if val.Type() == objectPtrType {
-		return objectPtrNil
-	}
-
-	// similarly for scopes: they are likely incorrect after a rewrite;
-	// replace them with nil
-	if val.Type() == scopePtrType {
-		return scopePtrNil
-	}
-
-	switch v := reflect.Indirect(val); v.Kind() {
-	case reflect.Slice:
-		for i := 0; i < v.Len(); i++ {
-			e := v.Index(i)
-			set(e, f(e))
-		}
-	case reflect.Struct:
-		for i := 0; i < v.NumField(); i++ {
-			e := v.Field(i)
-			set(e, f(e))
-		}
-	case reflect.Interface:
-		e := v.Elem()
-		set(v, f(e))
-	}
-	return val
-}
-
-func isWildcard(s string) bool {
-	rune, size := utf8.DecodeRuneInString(s)
-	return size == len(s) && unicode.IsLower(rune)
-}
-
-// match returns true if pattern matches val,
-// recording wildcard submatches in m.
-// If m == nil, match checks whether pattern == val.
-func match(m map[string]reflect.Value, pattern, val reflect.Value) bool {
-	// Wildcard matches any expression.  If it appears multiple
-	// times in the pattern, it must match the same expression
-	// each time.
-	if m != nil && pattern.IsValid() && pattern.Type() == identType {
-		name := pattern.Interface().(*ast.Ident).Name
-		if isWildcard(name) && val.IsValid() {
-			// wildcards only match valid (non-nil) expressions.
-			if _, ok := val.Interface().(ast.Expr); ok && !val.IsNil() {
-				if old, ok := m[name]; ok {
-					return match(nil, old, val)
-				}
-				m[name] = val
-				return true
-			}
-		}
-	}
-
-	// Otherwise, pattern and val must match recursively.
-	if !pattern.IsValid() || !val.IsValid() {
-		return !pattern.IsValid() && !val.IsValid()
-	}
-	if pattern.Type() != val.Type() {
-		return false
-	}
-
-	// Special cases.
-	switch pattern.Type() {
-	case identType:
-		// For identifiers, only the names need to match
-		// (and none of the other *ast.Object information).
-		// This is a common case, handle it all here instead
-		// of recursing down any further via reflection.
-		p := pattern.Interface().(*ast.Ident)
-		v := val.Interface().(*ast.Ident)
-		return p == nil && v == nil || p != nil && v != nil && p.Name == v.Name
-	case objectPtrType, positionType:
-		// object pointers and token positions always match
-		return true
-	case callExprType:
-		// For calls, the Ellipsis fields (token.Position) must
-		// match since that is how f(x) and f(x...) are different.
-		// Check them here but fall through for the remaining fields.
-		p := pattern.Interface().(*ast.CallExpr)
-		v := val.Interface().(*ast.CallExpr)
-		if p.Ellipsis.IsValid() != v.Ellipsis.IsValid() {
-			return false
-		}
-	}
-
-	p := reflect.Indirect(pattern)
-	v := reflect.Indirect(val)
-	if !p.IsValid() || !v.IsValid() {
-		return !p.IsValid() && !v.IsValid()
-	}
-
-	switch p.Kind() {
-	case reflect.Slice:
-		if p.Len() != v.Len() {
-			return false
-		}
-		for i := 0; i < p.Len(); i++ {
-			if !match(m, p.Index(i), v.Index(i)) {
-				return false
-			}
-		}
-		return true
-
-	case reflect.Struct:
-		for i := 0; i < p.NumField(); i++ {
-			if !match(m, p.Field(i), v.Field(i)) {
-				return false
-			}
-		}
-		return true
-
-	case reflect.Interface:
-		return match(m, p.Elem(), v.Elem())
-	}
-
-	// Handle token integers, etc.
-	return p.Interface() == v.Interface()
-}
-
-// subst returns a copy of pattern with values from m substituted in place
-// of wildcards and pos used as the position of tokens from the pattern.
-// if m == nil, subst returns a copy of pattern and doesn't change the line
-// number information.
-func subst(m map[string]reflect.Value, pattern reflect.Value, pos reflect.Value) reflect.Value {
-	if !pattern.IsValid() {
-		return reflect.Value{}
-	}
-
-	// Wildcard gets replaced with map value.
-	if m != nil && pattern.Type() == identType {
-		name := pattern.Interface().(*ast.Ident).Name
-		if isWildcard(name) {
-			if old, ok := m[name]; ok {
-				return subst(nil, old, reflect.Value{})
-			}
-		}
-	}
-
-	if pos.IsValid() && pattern.Type() == positionType {
-		// use new position only if old position was valid in the first place
-		if old := pattern.Interface().(token.Pos); !old.IsValid() {
-			return pattern
-		}
-		return pos
-	}
-
-	// Otherwise copy.
-	switch p := pattern; p.Kind() {
-	case reflect.Slice:
-		v := reflect.MakeSlice(p.Type(), p.Len(), p.Len())
-		for i := 0; i < p.Len(); i++ {
-			v.Index(i).Set(subst(m, p.Index(i), pos))
-		}
-		return v
-
-	case reflect.Struct:
-		v := reflect.New(p.Type()).Elem()
-		for i := 0; i < p.NumField(); i++ {
-			v.Field(i).Set(subst(m, p.Field(i), pos))
-		}
-		return v
-
-	case reflect.Ptr:
-		v := reflect.New(p.Type()).Elem()
-		if elem := p.Elem(); elem.IsValid() {
-			v.Set(subst(m, elem, pos).Addr())
-		}
-		return v
-
-	case reflect.Interface:
-		v := reflect.New(p.Type()).Elem()
-		if elem := p.Elem(); elem.IsValid() {
-			v.Set(subst(m, elem, pos))
-		}
-		return v
-	}
-
-	return pattern
-}
diff --git a/vendor/github.com/ulikunitz/xz/example.go b/vendor/github.com/ulikunitz/xz/example.go
deleted file mode 100644
index 855e60aee..000000000
--- a/vendor/github.com/ulikunitz/xz/example.go
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright 2014-2017 Ulrich Kunitz. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-package main
-
-import (
-	"bytes"
-	"io"
-	"log"
-	"os"
-
-	"github.com/ulikunitz/xz"
-)
-
-func main() {
-	const text = "The quick brown fox jumps over the lazy dog.\n"
-	var buf bytes.Buffer
-	// compress text
-	w, err := xz.NewWriter(&buf)
-	if err != nil {
-		log.Fatalf("xz.NewWriter error %s", err)
-	}
-	if _, err := io.WriteString(w, text); err != nil {
-		log.Fatalf("WriteString error %s", err)
-	}
-	if err := w.Close(); err != nil {
-		log.Fatalf("w.Close error %s", err)
-	}
-	// decompress buffer and write output to stdout
-	r, err := xz.NewReader(&buf)
-	if err != nil {
-		log.Fatalf("NewReader error %s", err)
-	}
-	if _, err = io.Copy(os.Stdout, r); err != nil {
-		log.Fatalf("io.Copy error %s", err)
-	}
-}