Merge pull request #542 from AkihiroSuda/compress

new package: compression (ported from docker/pkg/archive)

archive/compression/compression.go

@@ -0,0 +1,125 @@
+package compression
+
+import (
+	"bufio"
+	"bytes"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"sync"
+)
+
+type (
+	// Compression is the state represents if compressed or not.
+	Compression int
+)
+
+const (
+	// Uncompressed represents the uncompressed.
+	Uncompressed Compression = iota
+	// Gzip is gzip compression algorithm.
+	Gzip
+)
+
+var (
+	bufioReader32KPool = &sync.Pool{
+		New: func() interface{} { return bufio.NewReaderSize(nil, 32*1024) },
+	}
+)
+
+type readCloserWrapper struct {
+	io.Reader
+	closer func() error
+}
+
+func (r *readCloserWrapper) Close() error {
+	if r.closer != nil {
+		return r.closer()
+	}
+	return nil
+}
+
+type writeCloserWrapper struct {
+	io.Writer
+	closer func() error
+}
+
+func (w *writeCloserWrapper) Close() error {
+	if w.closer != nil {
+		w.closer()
+	}
+	return nil
+}
+
+// DetectCompression detects the compression algorithm of the source.
+func DetectCompression(source []byte) Compression {
+	for compression, m := range map[Compression][]byte{
+		Gzip: {0x1F, 0x8B, 0x08},
+	} {
+		if len(source) < len(m) {
+			// Len too short
+			continue
+		}
+		if bytes.Compare(m, source[:len(m)]) == 0 {
+			return compression
+		}
+	}
+	return Uncompressed
+}
+
+// DecompressStream decompresses the archive and returns a ReaderCloser with the decompressed archive.
+func DecompressStream(archive io.Reader) (io.ReadCloser, error) {
+	buf := bufioReader32KPool.Get().(*bufio.Reader)
+	buf.Reset(archive)
+	bs, err := buf.Peek(10)
+	if err != nil && err != io.EOF {
+		// Note: we'll ignore any io.EOF error because there are some odd
+		// cases where the layer.tar file will be empty (zero bytes) and
+		// that results in an io.EOF from the Peek() call. So, in those
+		// cases we'll just treat it as a non-compressed stream and
+		// that means just create an empty layer.
+		// See Issue docker/docker#18170
+		return nil, err
+	}
+
+	closer := func() error {
+		buf.Reset(nil)
+		bufioReader32KPool.Put(buf)
+		return nil
+	}
+	switch compression := DetectCompression(bs); compression {
+	case Uncompressed:
+		readBufWrapper := &readCloserWrapper{buf, closer}
+		return readBufWrapper, nil
+	case Gzip:
+		gzReader, err := gzip.NewReader(buf)
+		if err != nil {
+			return nil, err
+		}
+		readBufWrapper := &readCloserWrapper{gzReader, closer}
+		return readBufWrapper, nil
+	default:
+		return nil, fmt.Errorf("unsupported compression format %s", (&compression).Extension())
+	}
+}
+
+// CompressStream compresseses the dest with specified compression algorithm.
+func CompressStream(dest io.Writer, compression Compression) (io.WriteCloser, error) {
+	switch compression {
+	case Uncompressed:
+		return &writeCloserWrapper{dest, nil}, nil
+	case Gzip:
+		return gzip.NewWriter(dest), nil
+	default:
+		return nil, fmt.Errorf("unsupported compression format %s", (&compression).Extension())
+	}
+}
+
+// Extension returns the extension of a file that uses the specified compression algorithm.
+func (compression *Compression) Extension() string {
+	switch *compression {
+	case Gzip:
+		return "gz"
+	}
+	return ""
+}

archive/compression/compression_test.go

@@ -0,0 +1,67 @@
+package compression
+
+import (
+	"bytes"
+	"crypto/rand"
+	"io/ioutil"
+	"testing"
+)
+
+// generateData generates data that composed of 2 random parts
+// and single zero-filled part within them.
+// Typically, the compression ratio would be about 67%.
+func generateData(t *testing.T, size int) []byte {
+	part0 := size / 3             // random
+	part2 := size / 3             // random
+	part1 := size - part0 - part2 // zero-filled
+	part0Data := make([]byte, part0)
+	if _, err := rand.Read(part0Data); err != nil {
+		t.Fatal(err)
+	}
+	part1Data := make([]byte, part1)
+	part2Data := make([]byte, part2)
+	if _, err := rand.Read(part2Data); err != nil {
+		t.Fatal(err)
+	}
+	return append(part0Data, append(part1Data, part2Data...)...)
+}
+
+func testCompressDecompress(t *testing.T, size int, compression Compression) {
+	orig := generateData(t, size)
+	var b bytes.Buffer
+	compressor, err := CompressStream(&b, compression)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if n, err := compressor.Write(orig); err != nil || n != size {
+		t.Fatal(err)
+	}
+	compressor.Close()
+	compressed := b.Bytes()
+	t.Logf("compressed %d bytes to %d bytes (%.2f%%)",
+		len(orig), len(compressed), 100.0*float32(len(compressed))/float32(len(orig)))
+	if compared := bytes.Compare(orig, compressed); (compression == Uncompressed && compared != 0) ||
+		(compression != Uncompressed && compared == 0) {
+		t.Fatal("strange compressed data")
+	}
+
+	decompressor, err := DecompressStream(bytes.NewReader(compressed))
+	if err != nil {
+		t.Fatal(err)
+	}
+	decompressed, err := ioutil.ReadAll(decompressor)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bytes.Compare(orig, decompressed) != 0 {
+		t.Fatal("strange decompressed data")
+	}
+}
+
+func TestCompressDecompressGzip(t *testing.T) {
+	testCompressDecompress(t, 1024*1024, Gzip)
+}
+
+func TestCompressDecompressUncompressed(t *testing.T) {
+	testCompressDecompress(t, 1024*1024, Uncompressed)
+}

archive/tar_windows.go

@@ -7,7 +7,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/docker/docker/pkg/system"
+	"github.com/docker/containerd/sys"
 )
 
 // tarName returns platform-specific filepath
@@ -41,19 +41,19 @@ func setHeaderForSpecialDevice(*tar.Header, string, os.FileInfo) error {
 }
 
 func open(p string) (*os.File, error) {
-	// We use system.OpenSequential to ensure we use sequential file
+	// We use sys.OpenSequential to ensure we use sequential file
 	// access on Windows to avoid depleting the standby list.
-	return system.OpenSequential(p)
+	return sys.OpenSequential(p)
 }
 
 func openFile(name string, flag int, perm os.FileMode) (*os.File, error) {
-	// Source is regular file. We use system.OpenFileSequential to use sequential
+	// Source is regular file. We use sys.OpenFileSequential to use sequential
 	// file access to avoid depleting the standby list on Windows.
-	return system.OpenFileSequential(name, flag, perm)
+	return sys.OpenFileSequential(name, flag, perm)
 }
 
 func mkdirAll(path string, perm os.FileMode) error {
-	return system.MkdirAll(path, perm)
+	return sys.MkdirAll(path, perm)
 }
 
 func prepareApply() func() {

cmd/dist/apply.go

@@ -5,8 +5,8 @@ import (
 	"os"
 
 	"github.com/docker/containerd/archive"
+	"github.com/docker/containerd/archive/compression"
 	"github.com/docker/containerd/log"
-	dockerarchive "github.com/docker/docker/pkg/archive"
 	"github.com/urfave/cli"
 )
 
@@ -23,7 +23,7 @@ var applyCommand = cli.Command{
 
 		log.G(ctx).Info("applying layer from stdin")
 
-		rd, err := dockerarchive.DecompressStream(os.Stdin)
+		rd, err := compression.DecompressStream(os.Stdin)
 		if err != nil {
 			return err
 		}

rootfs/apply.go

@@ -7,9 +7,9 @@ import (
 
 	"github.com/docker/containerd"
 	"github.com/docker/containerd/archive"
+	"github.com/docker/containerd/archive/compression"
 	"github.com/docker/containerd/log"
 	"github.com/docker/containerd/snapshot"
-	dockerarchive "github.com/docker/docker/pkg/archive"
 	"github.com/opencontainers/go-digest"
 	"github.com/opencontainers/image-spec/identity"
 	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
@@ -63,7 +63,7 @@ func ApplyLayer(snapshots snapshot.Snapshotter, mounter Mounter, rd io.Reader, p
 	}
 	defer mounter.Unmount(dir)
 
-	rd, err = dockerarchive.DecompressStream(rd)
+	rd, err = compression.DecompressStream(rd)
 	if err != nil {
 		return "", err
 	}

sys/filesys_windows.go

@@ -1,6 +1,6 @@
 // +build windows
 
-package system
+package sys
 
 import (
 	"os"

vendor.conf

@@ -23,7 +23,6 @@ golang.org/x/net 8b4af36cd21a1f85a7484b49feb7c79363106d8e
 google.golang.org/grpc v1.0.5
 github.com/pkg/errors v0.8.0
 github.com/nightlyone/lockfile 1d49c987357a327b5b03aa84cbddd582c328615d
-github.com/docker/docker v1.13.0-rc6
 github.com/opencontainers/go-digest 21dfd564fd89c944783d00d069f33e3e7123c448
 golang.org/x/sys/unix d75a52659825e75fff6158388dddc6a5b04f9ba5
 github.com/opencontainers/image-spec a431dbcf6a74fca2e0e040b819a836dbe3fb23ca
@@ -31,3 +30,4 @@ github.com/stevvooe/continuity 1530f13d23b34e2ccaf33881fefecc7e28e3577b
 golang.org/x/sync 450f422ab23cf9881c94e2db30cac0eb1b7cf80c
 github.com/BurntSushi/toml      v0.2.0-21-g9906417
 github.com/grpc-ecosystem/go-grpc-prometheus 6b7015e65d366bf3f19b2b2a000a831940f0f7e0
+github.com/Microsoft/go-winio fff283ad5116362ca252298cfc9b95828956d85d

vendor/github.com/Microsoft/go-winio/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Microsoft
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

vendor/github.com/Microsoft/go-winio/README.md

@@ -0,0 +1,22 @@
+# go-winio
+
+This repository contains utilities for efficiently performing Win32 IO operations in
+Go. Currently, this is focused on accessing named pipes and other file handles, and
+for using named pipes as a net transport.
+
+This code relies on IO completion ports to avoid blocking IO on system threads, allowing Go
+to reuse the thread to schedule another goroutine. This limits support to Windows Vista and
+newer operating systems. This is similar to the implementation of network sockets in Go's net
+package.
+
+Please see the LICENSE file for licensing information.
+
+This project has adopted the [Microsoft Open Source Code of
+Conduct](https://opensource.microsoft.com/codeofconduct/). For more information
+see the [Code of Conduct
+FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact
+[opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional
+questions or comments.
+
+Thanks to natefinch for the inspiration for this library. See https://github.com/natefinch/npipe
+for another named pipe implementation.

vendor/github.com/Microsoft/go-winio/backup.go

@@ -0,0 +1,268 @@
+// +build windows
+
+package winio
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"runtime"
+	"syscall"
+	"unicode/utf16"
+)
+
+//sys backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupRead
+//sys backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupWrite
+
+const (
+	BackupData = uint32(iota + 1)
+	BackupEaData
+	BackupSecurity
+	BackupAlternateData
+	BackupLink
+	BackupPropertyData
+	BackupObjectId
+	BackupReparseData
+	BackupSparseBlock
+	BackupTxfsData
+)
+
+const (
+	StreamSparseAttributes = uint32(8)
+)
+
+const (
+	WRITE_DAC              = 0x40000
+	WRITE_OWNER            = 0x80000
+	ACCESS_SYSTEM_SECURITY = 0x1000000
+)
+
+// BackupHeader represents a backup stream of a file.
+type BackupHeader struct {
+	Id         uint32 // The backup stream ID
+	Attributes uint32 // Stream attributes
+	Size       int64  // The size of the stream in bytes
+	Name       string // The name of the stream (for BackupAlternateData only).
+	Offset     int64  // The offset of the stream in the file (for BackupSparseBlock only).
+}
+
+type win32StreamId struct {
+	StreamId   uint32
+	Attributes uint32
+	Size       uint64
+	NameSize   uint32
+}
+
+// BackupStreamReader reads from a stream produced by the BackupRead Win32 API and produces a series
+// of BackupHeader values.
+type BackupStreamReader struct {
+	r         io.Reader
+	bytesLeft int64
+}
+
+// NewBackupStreamReader produces a BackupStreamReader from any io.Reader.
+func NewBackupStreamReader(r io.Reader) *BackupStreamReader {
+	return &BackupStreamReader{r, 0}
+}
+
+// Next returns the next backup stream and prepares for calls to Write(). It skips the remainder of the current stream if
+// it was not completely read.
+func (r *BackupStreamReader) Next() (*BackupHeader, error) {
+	if r.bytesLeft > 0 {
+		if _, err := io.Copy(ioutil.Discard, r); err != nil {
+			return nil, err
+		}
+	}
+	var wsi win32StreamId
+	if err := binary.Read(r.r, binary.LittleEndian, &wsi); err != nil {
+		return nil, err
+	}
+	hdr := &BackupHeader{
+		Id:         wsi.StreamId,
+		Attributes: wsi.Attributes,
+		Size:       int64(wsi.Size),
+	}
+	if wsi.NameSize != 0 {
+		name := make([]uint16, int(wsi.NameSize/2))
+		if err := binary.Read(r.r, binary.LittleEndian, name); err != nil {
+			return nil, err
+		}
+		hdr.Name = syscall.UTF16ToString(name)
+	}
+	if wsi.StreamId == BackupSparseBlock {
+		if err := binary.Read(r.r, binary.LittleEndian, &hdr.Offset); err != nil {
+			return nil, err
+		}
+		hdr.Size -= 8
+	}
+	r.bytesLeft = hdr.Size
+	return hdr, nil
+}
+
+// Read reads from the current backup stream.
+func (r *BackupStreamReader) Read(b []byte) (int, error) {
+	if r.bytesLeft == 0 {
+		return 0, io.EOF
+	}
+	if int64(len(b)) > r.bytesLeft {
+		b = b[:r.bytesLeft]
+	}
+	n, err := r.r.Read(b)
+	r.bytesLeft -= int64(n)
+	if err == io.EOF {
+		err = io.ErrUnexpectedEOF
+	} else if r.bytesLeft == 0 && err == nil {
+		err = io.EOF
+	}
+	return n, err
+}
+
+// BackupStreamWriter writes a stream compatible with the BackupWrite Win32 API.
+type BackupStreamWriter struct {
+	w         io.Writer
+	bytesLeft int64
+}
+
+// NewBackupStreamWriter produces a BackupStreamWriter on top of an io.Writer.
+func NewBackupStreamWriter(w io.Writer) *BackupStreamWriter {
+	return &BackupStreamWriter{w, 0}
+}
+
+// WriteHeader writes the next backup stream header and prepares for calls to Write().
+func (w *BackupStreamWriter) WriteHeader(hdr *BackupHeader) error {
+	if w.bytesLeft != 0 {
+		return fmt.Errorf("missing %d bytes", w.bytesLeft)
+	}
+	name := utf16.Encode([]rune(hdr.Name))
+	wsi := win32StreamId{
+		StreamId:   hdr.Id,
+		Attributes: hdr.Attributes,
+		Size:       uint64(hdr.Size),
+		NameSize:   uint32(len(name) * 2),
+	}
+	if hdr.Id == BackupSparseBlock {
+		// Include space for the int64 block offset
+		wsi.Size += 8
+	}
+	if err := binary.Write(w.w, binary.LittleEndian, &wsi); err != nil {
+		return err
+	}
+	if len(name) != 0 {
+		if err := binary.Write(w.w, binary.LittleEndian, name); err != nil {
+			return err
+		}
+	}
+	if hdr.Id == BackupSparseBlock {
+		if err := binary.Write(w.w, binary.LittleEndian, hdr.Offset); err != nil {
+			return err
+		}
+	}
+	w.bytesLeft = hdr.Size
+	return nil
+}
+
+// Write writes to the current backup stream.
+func (w *BackupStreamWriter) Write(b []byte) (int, error) {
+	if w.bytesLeft < int64(len(b)) {
+		return 0, fmt.Errorf("too many bytes by %d", int64(len(b))-w.bytesLeft)
+	}
+	n, err := w.w.Write(b)
+	w.bytesLeft -= int64(n)
+	return n, err
+}
+
+// BackupFileReader provides an io.ReadCloser interface on top of the BackupRead Win32 API.
+type BackupFileReader struct {
+	f               *os.File
+	includeSecurity bool
+	ctx             uintptr
+}
+
+// NewBackupFileReader returns a new BackupFileReader from a file handle. If includeSecurity is true,
+// Read will attempt to read the security descriptor of the file.
+func NewBackupFileReader(f *os.File, includeSecurity bool) *BackupFileReader {
+	r := &BackupFileReader{f, includeSecurity, 0}
+	runtime.SetFinalizer(r, func(r *BackupFileReader) { r.Close() })
+	return r
+}
+
+// Read reads a backup stream from the file by calling the Win32 API BackupRead().
+func (r *BackupFileReader) Read(b []byte) (int, error) {
+	var bytesRead uint32
+	err := backupRead(syscall.Handle(r.f.Fd()), b, &bytesRead, false, r.includeSecurity, &r.ctx)
+	if err != nil {
+		return 0, &os.PathError{"BackupRead", r.f.Name(), err}
+	}
+	if bytesRead == 0 {
+		return 0, io.EOF
+	}
+	return int(bytesRead), nil
+}
+
+// Close frees Win32 resources associated with the BackupFileReader. It does not close
+// the underlying file.
+func (r *BackupFileReader) Close() error {
+	if r.ctx != 0 {
+		backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
+		r.ctx = 0
+	}
+	return nil
+}
+
+// BackupFileWriter provides an io.WriteCloser interface on top of the BackupWrite Win32 API.
+type BackupFileWriter struct {
+	f               *os.File
+	includeSecurity bool
+	ctx             uintptr
+}
+
+// NewBackupFileWrtier returns a new BackupFileWriter from a file handle. If includeSecurity is true,
+// Write() will attempt to restore the security descriptor from the stream.
+func NewBackupFileWriter(f *os.File, includeSecurity bool) *BackupFileWriter {
+	w := &BackupFileWriter{f, includeSecurity, 0}
+	runtime.SetFinalizer(w, func(w *BackupFileWriter) { w.Close() })
+	return w
+}
+
+// Write restores a portion of the file using the provided backup stream.
+func (w *BackupFileWriter) Write(b []byte) (int, error) {
+	var bytesWritten uint32
+	err := backupWrite(syscall.Handle(w.f.Fd()), b, &bytesWritten, false, w.includeSecurity, &w.ctx)
+	if err != nil {
+		return 0, &os.PathError{"BackupWrite", w.f.Name(), err}
+	}
+	if int(bytesWritten) != len(b) {
+		return int(bytesWritten), errors.New("not all bytes could be written")
+	}
+	return len(b), nil
+}
+
+// Close frees Win32 resources associated with the BackupFileWriter. It does not
+// close the underlying file.
+func (w *BackupFileWriter) Close() error {
+	if w.ctx != 0 {
+		backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
+		w.ctx = 0
+	}
+	return nil
+}
+
+// OpenForBackup opens a file or directory, potentially skipping access checks if the backup
+// or restore privileges have been acquired.
+//
+// If the file opened was a directory, it cannot be used with Readdir().
+func OpenForBackup(path string, access uint32, share uint32, createmode uint32) (*os.File, error) {
+	winPath, err := syscall.UTF16FromString(path)
+	if err != nil {
+		return nil, err
+	}
+	h, err := syscall.CreateFile(&winPath[0], access, share, nil, createmode, syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OPEN_REPARSE_POINT, 0)
+	if err != nil {
+		err = &os.PathError{Op: "open", Path: path, Err: err}
+		return nil, err
+	}
+	return os.NewFile(uintptr(h), path), nil
+}

vendor/github.com/Microsoft/go-winio/file.go

@@ -0,0 +1,221 @@
+// +build windows
+
+package winio
+
+import (
+	"errors"
+	"io"
+	"runtime"
+	"sync"
+	"syscall"
+	"time"
+)
+
+//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
+//sys createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) = CreateIoCompletionPort
+//sys getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
+//sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
+//sys timeBeginPeriod(period uint32) (n int32) = winmm.timeBeginPeriod
+
+const (
+	cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
+	cFILE_SKIP_SET_EVENT_ON_HANDLE        = 2
+)
+
+var (
+	ErrFileClosed = errors.New("file has already been closed")
+	ErrTimeout    = &timeoutError{}
+)
+
+type timeoutError struct{}
+
+func (e *timeoutError) Error() string   { return "i/o timeout" }
+func (e *timeoutError) Timeout() bool   { return true }
+func (e *timeoutError) Temporary() bool { return true }
+
+var ioInitOnce sync.Once
+var ioCompletionPort syscall.Handle
+
+// ioResult contains the result of an asynchronous IO operation
+type ioResult struct {
+	bytes uint32
+	err   error
+}
+
+// ioOperation represents an outstanding asynchronous Win32 IO
+type ioOperation struct {
+	o  syscall.Overlapped
+	ch chan ioResult
+}
+
+func initIo() {
+	h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
+	if err != nil {
+		panic(err)
+	}
+	ioCompletionPort = h
+	go ioCompletionProcessor(h)
+}
+
+// win32File implements Reader, Writer, and Closer on a Win32 handle without blocking in a syscall.
+// It takes ownership of this handle and will close it if it is garbage collected.
+type win32File struct {
+	handle        syscall.Handle
+	wg            sync.WaitGroup
+	closing       bool
+	readDeadline  time.Time
+	writeDeadline time.Time
+}
+
+// makeWin32File makes a new win32File from an existing file handle
+func makeWin32File(h syscall.Handle) (*win32File, error) {
+	f := &win32File{handle: h}
+	ioInitOnce.Do(initIo)
+	_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
+	if err != nil {
+		return nil, err
+	}
+	err = setFileCompletionNotificationModes(h, cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS|cFILE_SKIP_SET_EVENT_ON_HANDLE)
+	if err != nil {
+		return nil, err
+	}
+	runtime.SetFinalizer(f, (*win32File).closeHandle)
+	return f, nil
+}
+
+func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
+	return makeWin32File(h)
+}
+
+// closeHandle closes the resources associated with a Win32 handle
+func (f *win32File) closeHandle() {
+	if !f.closing {
+		// cancel all IO and wait for it to complete
+		f.closing = true
+		cancelIoEx(f.handle, nil)
+		f.wg.Wait()
+		// at this point, no new IO can start
+		syscall.Close(f.handle)
+		f.handle = 0
+	}
+}
+
+// Close closes a win32File.
+func (f *win32File) Close() error {
+	f.closeHandle()
+	runtime.SetFinalizer(f, nil)
+	return nil
+}
+
+// prepareIo prepares for a new IO operation
+func (f *win32File) prepareIo() (*ioOperation, error) {
+	f.wg.Add(1)
+	if f.closing {
+		return nil, ErrFileClosed
+	}
+	c := &ioOperation{}
+	c.ch = make(chan ioResult)
+	return c, nil
+}
+
+// ioCompletionProcessor processes completed async IOs forever
+func ioCompletionProcessor(h syscall.Handle) {
+	// Set the timer resolution to 1. This fixes a performance regression in golang 1.6.
+	timeBeginPeriod(1)
+	for {
+		var bytes uint32
+		var key uintptr
+		var op *ioOperation
+		err := getQueuedCompletionStatus(h, &bytes, &key, &op, syscall.INFINITE)
+		if op == nil {
+			panic(err)
+		}
+		op.ch <- ioResult{bytes, err}
+	}
+}
+
+// asyncIo processes the return value from ReadFile or WriteFile, blocking until
+// the operation has actually completed.
+func (f *win32File) asyncIo(c *ioOperation, deadline time.Time, bytes uint32, err error) (int, error) {
+	if err != syscall.ERROR_IO_PENDING {
+		f.wg.Done()
+		return int(bytes), err
+	} else {
+		var r ioResult
+		wait := true
+		timedout := false
+		if f.closing {
+			cancelIoEx(f.handle, &c.o)
+		} else if !deadline.IsZero() {
+			now := time.Now()
+			if !deadline.After(now) {
+				timedout = true
+			} else {
+				timeout := time.After(deadline.Sub(now))
+				select {
+				case r = <-c.ch:
+					wait = false
+				case <-timeout:
+					timedout = true
+				}
+			}
+		}
+		if timedout {
+			cancelIoEx(f.handle, &c.o)
+		}
+		if wait {
+			r = <-c.ch
+		}
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			if f.closing {
+				err = ErrFileClosed
+			} else if timedout {
+				err = ErrTimeout
+			}
+		}
+		f.wg.Done()
+		return int(r.bytes), err
+	}
+}
+
+// Read reads from a file handle.
+func (f *win32File) Read(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	var bytes uint32
+	err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
+	n, err := f.asyncIo(c, f.readDeadline, bytes, err)
+
+	// Handle EOF conditions.
+	if err == nil && n == 0 && len(b) != 0 {
+		return 0, io.EOF
+	} else if err == syscall.ERROR_BROKEN_PIPE {
+		return 0, io.EOF
+	} else {
+		return n, err
+	}
+}
+
+// Write writes to a file handle.
+func (f *win32File) Write(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	var bytes uint32
+	err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
+	return f.asyncIo(c, f.writeDeadline, bytes, err)
+}
+
+func (f *win32File) SetReadDeadline(t time.Time) error {
+	f.readDeadline = t
+	return nil
+}
+
+func (f *win32File) SetWriteDeadline(t time.Time) error {
+	f.writeDeadline = t
+	return nil
+}

vendor/github.com/Microsoft/go-winio/fileinfo.go

@@ -0,0 +1,56 @@
+// +build windows
+
+package winio
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+//sys getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = GetFileInformationByHandleEx
+//sys setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = SetFileInformationByHandle
+
+const (
+	fileBasicInfo = 0
+	fileIDInfo    = 0x12
+)
+
+// FileBasicInfo contains file access time and file attributes information.
+type FileBasicInfo struct {
+	CreationTime, LastAccessTime, LastWriteTime, ChangeTime syscall.Filetime
+	FileAttributes                                          uintptr // includes padding
+}
+
+// GetFileBasicInfo retrieves times and attributes for a file.
+func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
+	bi := &FileBasicInfo{}
+	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+	}
+	return bi, nil
+}
+
+// SetFileBasicInfo sets times and attributes for a file.
+func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
+	if err := setFileInformationByHandle(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+		return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
+	}
+	return nil
+}
+
+// FileIDInfo contains the volume serial number and file ID for a file. This pair should be
+// unique on a system.
+type FileIDInfo struct {
+	VolumeSerialNumber uint64
+	FileID             [16]byte
+}
+
+// GetFileID retrieves the unique (volume, file ID) pair for a file.
+func GetFileID(f *os.File) (*FileIDInfo, error) {
+	fileID := &FileIDInfo{}
+	if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileIDInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
+		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+	}
+	return fileID, nil
+}

vendor/github.com/Microsoft/go-winio/pipe.go

@@ -0,0 +1,400 @@
+// +build windows
+
+package winio
+
+import (
+	"errors"
+	"io"
+	"net"
+	"os"
+	"syscall"
+	"time"
+	"unsafe"
+)
+
+//sys connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) = ConnectNamedPipe
+//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *securityAttributes) (handle syscall.Handle, err error)  [failretval==syscall.InvalidHandle] = CreateNamedPipeW
+//sys createFile(name string, access uint32, mode uint32, sa *securityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateFileW
+//sys waitNamedPipe(name string, timeout uint32) (err error) = WaitNamedPipeW
+//sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
+//sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
+
+type securityAttributes struct {
+	Length             uint32
+	SecurityDescriptor *byte
+	InheritHandle      uint32
+}
+
+const (
+	cERROR_PIPE_BUSY      = syscall.Errno(231)
+	cERROR_PIPE_CONNECTED = syscall.Errno(535)
+	cERROR_SEM_TIMEOUT    = syscall.Errno(121)
+
+	cPIPE_ACCESS_DUPLEX            = 0x3
+	cFILE_FLAG_FIRST_PIPE_INSTANCE = 0x80000
+	cSECURITY_SQOS_PRESENT         = 0x100000
+	cSECURITY_ANONYMOUS            = 0
+
+	cPIPE_REJECT_REMOTE_CLIENTS = 0x8
+
+	cPIPE_UNLIMITED_INSTANCES = 255
+
+	cNMPWAIT_USE_DEFAULT_WAIT = 0
+	cNMPWAIT_NOWAIT           = 1
+
+	cPIPE_TYPE_MESSAGE = 4
+
+	cPIPE_READMODE_MESSAGE = 2
+)
+
+var (
+	// ErrPipeListenerClosed is returned for pipe operations on listeners that have been closed.
+	// This error should match net.errClosing since docker takes a dependency on its text.
+	ErrPipeListenerClosed = errors.New("use of closed network connection")
+
+	errPipeWriteClosed = errors.New("pipe has been closed for write")
+)
+
+type win32Pipe struct {
+	*win32File
+	path string
+}
+
+type win32MessageBytePipe struct {
+	win32Pipe
+	writeClosed bool
+	readEOF     bool
+}
+
+type pipeAddress string
+
+func (f *win32Pipe) LocalAddr() net.Addr {
+	return pipeAddress(f.path)
+}
+
+func (f *win32Pipe) RemoteAddr() net.Addr {
+	return pipeAddress(f.path)
+}
+
+func (f *win32Pipe) SetDeadline(t time.Time) error {
+	f.SetReadDeadline(t)
+	f.SetWriteDeadline(t)
+	return nil
+}
+
+// CloseWrite closes the write side of a message pipe in byte mode.
+func (f *win32MessageBytePipe) CloseWrite() error {
+	if f.writeClosed {
+		return errPipeWriteClosed
+	}
+	_, err := f.win32File.Write(nil)
+	if err != nil {
+		return err
+	}
+	f.writeClosed = true
+	return nil
+}
+
+// Write writes bytes to a message pipe in byte mode. Zero-byte writes are ignored, since
+// they are used to implement CloseWrite().
+func (f *win32MessageBytePipe) Write(b []byte) (int, error) {
+	if f.writeClosed {
+		return 0, errPipeWriteClosed
+	}
+	if len(b) == 0 {
+		return 0, nil
+	}
+	return f.win32File.Write(b)
+}
+
+// Read reads bytes from a message pipe in byte mode. A read of a zero-byte message on a message
+// mode pipe will return io.EOF, as will all subsequent reads.
+func (f *win32MessageBytePipe) Read(b []byte) (int, error) {
+	if f.readEOF {
+		return 0, io.EOF
+	}
+	n, err := f.win32File.Read(b)
+	if err == io.EOF {
+		// If this was the result of a zero-byte read, then
+		// it is possible that the read was due to a zero-size
+		// message. Since we are simulating CloseWrite with a
+		// zero-byte message, ensure that all future Read() calls
+		// also return EOF.
+		f.readEOF = true
+	}
+	return n, err
+}
+
+func (s pipeAddress) Network() string {
+	return "pipe"
+}
+
+func (s pipeAddress) String() string {
+	return string(s)
+}
+
+// DialPipe connects to a named pipe by path, timing out if the connection
+// takes longer than the specified duration. If timeout is nil, then the timeout
+// is the default timeout established by the pipe server.
+func DialPipe(path string, timeout *time.Duration) (net.Conn, error) {
+	var absTimeout time.Time
+	if timeout != nil {
+		absTimeout = time.Now().Add(*timeout)
+	}
+	var err error
+	var h syscall.Handle
+	for {
+		h, err = createFile(path, syscall.GENERIC_READ|syscall.GENERIC_WRITE, 0, nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED|cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
+		if err != cERROR_PIPE_BUSY {
+			break
+		}
+		now := time.Now()
+		var ms uint32
+		if absTimeout.IsZero() {
+			ms = cNMPWAIT_USE_DEFAULT_WAIT
+		} else if now.After(absTimeout) {
+			ms = cNMPWAIT_NOWAIT
+		} else {
+			ms = uint32(absTimeout.Sub(now).Nanoseconds() / 1000 / 1000)
+		}
+		err = waitNamedPipe(path, ms)
+		if err != nil {
+			if err == cERROR_SEM_TIMEOUT {
+				return nil, ErrTimeout
+			}
+			break
+		}
+	}
+	if err != nil {
+		return nil, &os.PathError{Op: "open", Path: path, Err: err}
+	}
+
+	var flags uint32
+	err = getNamedPipeInfo(h, &flags, nil, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var state uint32
+	err = getNamedPipeHandleState(h, &state, nil, nil, nil, nil, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	if state&cPIPE_READMODE_MESSAGE != 0 {
+		return nil, &os.PathError{Op: "open", Path: path, Err: errors.New("message readmode pipes not supported")}
+	}
+
+	f, err := makeWin32File(h)
+	if err != nil {
+		syscall.Close(h)
+		return nil, err
+	}
+
+	// If the pipe is in message mode, return a message byte pipe, which
+	// supports CloseWrite().
+	if flags&cPIPE_TYPE_MESSAGE != 0 {
+		return &win32MessageBytePipe{
+			win32Pipe: win32Pipe{win32File: f, path: path},
+		}, nil
+	}
+	return &win32Pipe{win32File: f, path: path}, nil
+}
+
+type acceptResponse struct {
+	f   *win32File
+	err error
+}
+
+type win32PipeListener struct {
+	firstHandle        syscall.Handle
+	path               string
+	securityDescriptor []byte
+	config             PipeConfig
+	acceptCh           chan (chan acceptResponse)
+	closeCh            chan int
+	doneCh             chan int
+}
+
+func makeServerPipeHandle(path string, securityDescriptor []byte, c *PipeConfig, first bool) (syscall.Handle, error) {
+	var flags uint32 = cPIPE_ACCESS_DUPLEX | syscall.FILE_FLAG_OVERLAPPED
+	if first {
+		flags |= cFILE_FLAG_FIRST_PIPE_INSTANCE
+	}
+
+	var mode uint32 = cPIPE_REJECT_REMOTE_CLIENTS
+	if c.MessageMode {
+		mode |= cPIPE_TYPE_MESSAGE
+	}
+
+	var sa securityAttributes
+	sa.Length = uint32(unsafe.Sizeof(sa))
+	if securityDescriptor != nil {
+		sa.SecurityDescriptor = &securityDescriptor[0]
+	}
+	h, err := createNamedPipe(path, flags, mode, cPIPE_UNLIMITED_INSTANCES, uint32(c.OutputBufferSize), uint32(c.InputBufferSize), 0, &sa)
+	if err != nil {
+		return 0, &os.PathError{Op: "open", Path: path, Err: err}
+	}
+	return h, nil
+}
+
+func (l *win32PipeListener) makeServerPipe() (*win32File, error) {
+	h, err := makeServerPipeHandle(l.path, l.securityDescriptor, &l.config, false)
+	if err != nil {
+		return nil, err
+	}
+	f, err := makeWin32File(h)
+	if err != nil {
+		syscall.Close(h)
+		return nil, err
+	}
+	return f, nil
+}
+
+func (l *win32PipeListener) listenerRoutine() {
+	closed := false
+	for !closed {
+		select {
+		case <-l.closeCh:
+			closed = true
+		case responseCh := <-l.acceptCh:
+			p, err := l.makeServerPipe()
+			if err == nil {
+				// Wait for the client to connect.
+				ch := make(chan error)
+				go func() {
+					ch <- connectPipe(p)
+				}()
+				select {
+				case err = <-ch:
+					if err != nil {
+						p.Close()
+						p = nil
+					}
+				case <-l.closeCh:
+					// Abort the connect request by closing the handle.
+					p.Close()
+					p = nil
+					err = <-ch
+					if err == nil || err == ErrFileClosed {
+						err = ErrPipeListenerClosed
+					}
+					closed = true
+				}
+			}
+			responseCh <- acceptResponse{p, err}
+		}
+	}
+	syscall.Close(l.firstHandle)
+	l.firstHandle = 0
+	// Notify Close() and Accept() callers that the handle has been closed.
+	close(l.doneCh)
+}
+
+// PipeConfig contain configuration for the pipe listener.
+type PipeConfig struct {
+	// SecurityDescriptor contains a Windows security descriptor in SDDL format.
+	SecurityDescriptor string
+
+	// MessageMode determines whether the pipe is in byte or message mode. In either
+	// case the pipe is read in byte mode by default. The only practical difference in
+	// this implementation is that CloseWrite() is only supported for message mode pipes;
+	// CloseWrite() is implemented as a zero-byte write, but zero-byte writes are only
+	// transferred to the reader (and returned as io.EOF in this implementation)
+	// when the pipe is in message mode.
+	MessageMode bool
+
+	// InputBufferSize specifies the size the input buffer, in bytes.
+	InputBufferSize int32
+
+	// OutputBufferSize specifies the size the input buffer, in bytes.
+	OutputBufferSize int32
+}
+
+// ListenPipe creates a listener on a Windows named pipe path, e.g. \\.\pipe\mypipe.
+// The pipe must not already exist.
+func ListenPipe(path string, c *PipeConfig) (net.Listener, error) {
+	var (
+		sd  []byte
+		err error
+	)
+	if c == nil {
+		c = &PipeConfig{}
+	}
+	if c.SecurityDescriptor != "" {
+		sd, err = SddlToSecurityDescriptor(c.SecurityDescriptor)
+		if err != nil {
+			return nil, err
+		}
+	}
+	h, err := makeServerPipeHandle(path, sd, c, true)
+	if err != nil {
+		return nil, err
+	}
+	// Immediately open and then close a client handle so that the named pipe is
+	// created but not currently accepting connections.
+	h2, err := createFile(path, 0, 0, nil, syscall.OPEN_EXISTING, cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
+	if err != nil {
+		syscall.Close(h)
+		return nil, err
+	}
+	syscall.Close(h2)
+	l := &win32PipeListener{
+		firstHandle:        h,
+		path:               path,
+		securityDescriptor: sd,
+		config:             *c,
+		acceptCh:           make(chan (chan acceptResponse)),
+		closeCh:            make(chan int),
+		doneCh:             make(chan int),
+	}
+	go l.listenerRoutine()
+	return l, nil
+}
+
+func connectPipe(p *win32File) error {
+	c, err := p.prepareIo()
+	if err != nil {
+		return err
+	}
+	err = connectNamedPipe(p.handle, &c.o)
+	_, err = p.asyncIo(c, time.Time{}, 0, err)
+	if err != nil && err != cERROR_PIPE_CONNECTED {
+		return err
+	}
+	return nil
+}
+
+func (l *win32PipeListener) Accept() (net.Conn, error) {
+	ch := make(chan acceptResponse)
+	select {
+	case l.acceptCh <- ch:
+		response := <-ch
+		err := response.err
+		if err != nil {
+			return nil, err
+		}
+		if l.config.MessageMode {
+			return &win32MessageBytePipe{
+				win32Pipe: win32Pipe{win32File: response.f, path: l.path},
+			}, nil
+		}
+		return &win32Pipe{win32File: response.f, path: l.path}, nil
+	case <-l.doneCh:
+		return nil, ErrPipeListenerClosed
+	}
+}
+
+func (l *win32PipeListener) Close() error {
+	select {
+	case l.closeCh <- 1:
+		<-l.doneCh
+	case <-l.doneCh:
+	}
+	return nil
+}
+
+func (l *win32PipeListener) Addr() net.Addr {
+	return pipeAddress(l.path)
+}

vendor/github.com/Microsoft/go-winio/privilege.go

@@ -0,0 +1,202 @@
+// +build windows
+
+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"runtime"
+	"sync"
+	"syscall"
+	"unicode/utf16"
+
+	"golang.org/x/sys/windows"
+)
+
+//sys adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) [true] = advapi32.AdjustTokenPrivileges
+//sys impersonateSelf(level uint32) (err error) = advapi32.ImpersonateSelf
+//sys revertToSelf() (err error) = advapi32.RevertToSelf
+//sys openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool, token *windows.Token) (err error) = advapi32.OpenThreadToken
+//sys getCurrentThread() (h syscall.Handle) = GetCurrentThread
+//sys lookupPrivilegeValue(systemName string, name string, luid *uint64) (err error) = advapi32.LookupPrivilegeValueW
+//sys lookupPrivilegeName(systemName string, luid *uint64, buffer *uint16, size *uint32) (err error) = advapi32.LookupPrivilegeNameW
+//sys lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) = advapi32.LookupPrivilegeDisplayNameW
+
+const (
+	SE_PRIVILEGE_ENABLED = 2
+
+	ERROR_NOT_ALL_ASSIGNED syscall.Errno = 1300
+
+	SeBackupPrivilege  = "SeBackupPrivilege"
+	SeRestorePrivilege = "SeRestorePrivilege"
+)
+
+const (
+	securityAnonymous = iota
+	securityIdentification
+	securityImpersonation
+	securityDelegation
+)
+
+var (
+	privNames     = make(map[string]uint64)
+	privNameMutex sync.Mutex
+)
+
+// PrivilegeError represents an error enabling privileges.
+type PrivilegeError struct {
+	privileges []uint64
+}
+
+func (e *PrivilegeError) Error() string {
+	s := ""
+	if len(e.privileges) > 1 {
+		s = "Could not enable privileges "
+	} else {
+		s = "Could not enable privilege "
+	}
+	for i, p := range e.privileges {
+		if i != 0 {
+			s += ", "
+		}
+		s += `"`
+		s += getPrivilegeName(p)
+		s += `"`
+	}
+	return s
+}
+
+// RunWithPrivilege enables a single privilege for a function call.
+func RunWithPrivilege(name string, fn func() error) error {
+	return RunWithPrivileges([]string{name}, fn)
+}
+
+// RunWithPrivileges enables privileges for a function call.
+func RunWithPrivileges(names []string, fn func() error) error {
+	privileges, err := mapPrivileges(names)
+	if err != nil {
+		return err
+	}
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+	token, err := newThreadToken()
+	if err != nil {
+		return err
+	}
+	defer releaseThreadToken(token)
+	err = adjustPrivileges(token, privileges, SE_PRIVILEGE_ENABLED)
+	if err != nil {
+		return err
+	}
+	return fn()
+}
+
+func mapPrivileges(names []string) ([]uint64, error) {
+	var privileges []uint64
+	privNameMutex.Lock()
+	defer privNameMutex.Unlock()
+	for _, name := range names {
+		p, ok := privNames[name]
+		if !ok {
+			err := lookupPrivilegeValue("", name, &p)
+			if err != nil {
+				return nil, err
+			}
+			privNames[name] = p
+		}
+		privileges = append(privileges, p)
+	}
+	return privileges, nil
+}
+
+// EnableProcessPrivileges enables privileges globally for the process.
+func EnableProcessPrivileges(names []string) error {
+	return enableDisableProcessPrivilege(names, SE_PRIVILEGE_ENABLED)
+}
+
+// DisableProcessPrivileges disables privileges globally for the process.
+func DisableProcessPrivileges(names []string) error {
+	return enableDisableProcessPrivilege(names, 0)
+}
+
+func enableDisableProcessPrivilege(names []string, action uint32) error {
+	privileges, err := mapPrivileges(names)
+	if err != nil {
+		return err
+	}
+
+	p, _ := windows.GetCurrentProcess()
+	var token windows.Token
+	err = windows.OpenProcessToken(p, windows.TOKEN_ADJUST_PRIVILEGES|windows.TOKEN_QUERY, &token)
+	if err != nil {
+		return err
+	}
+
+	defer token.Close()
+	return adjustPrivileges(token, privileges, action)
+}
+
+func adjustPrivileges(token windows.Token, privileges []uint64, action uint32) error {
+	var b bytes.Buffer
+	binary.Write(&b, binary.LittleEndian, uint32(len(privileges)))
+	for _, p := range privileges {
+		binary.Write(&b, binary.LittleEndian, p)
+		binary.Write(&b, binary.LittleEndian, action)
+	}
+	prevState := make([]byte, b.Len())
+	reqSize := uint32(0)
+	success, err := adjustTokenPrivileges(token, false, &b.Bytes()[0], uint32(len(prevState)), &prevState[0], &reqSize)
+	if !success {
+		return err
+	}
+	if err == ERROR_NOT_ALL_ASSIGNED {
+		return &PrivilegeError{privileges}
+	}
+	return nil
+}
+
+func getPrivilegeName(luid uint64) string {
+	var nameBuffer [256]uint16
+	bufSize := uint32(len(nameBuffer))
+	err := lookupPrivilegeName("", &luid, &nameBuffer[0], &bufSize)
+	if err != nil {
+		return fmt.Sprintf("<unknown privilege %d>", luid)
+	}
+
+	var displayNameBuffer [256]uint16
+	displayBufSize := uint32(len(displayNameBuffer))
+	var langID uint32
+	err = lookupPrivilegeDisplayName("", &nameBuffer[0], &displayNameBuffer[0], &displayBufSize, &langID)
+	if err != nil {
+		return fmt.Sprintf("<unknown privilege %s>", string(utf16.Decode(nameBuffer[:bufSize])))
+	}
+
+	return string(utf16.Decode(displayNameBuffer[:displayBufSize]))
+}
+
+func newThreadToken() (windows.Token, error) {
+	err := impersonateSelf(securityImpersonation)
+	if err != nil {
+		return 0, err
+	}
+
+	var token windows.Token
+	err = openThreadToken(getCurrentThread(), syscall.TOKEN_ADJUST_PRIVILEGES|syscall.TOKEN_QUERY, false, &token)
+	if err != nil {
+		rerr := revertToSelf()
+		if rerr != nil {
+			panic(rerr)
+		}
+		return 0, err
+	}
+	return token, nil
+}
+
+func releaseThreadToken(h windows.Token) {
+	err := revertToSelf()
+	if err != nil {
+		panic(err)
+	}
+	h.Close()
+}

vendor/github.com/Microsoft/go-winio/reparse.go

@@ -0,0 +1,128 @@
+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"strings"
+	"unicode/utf16"
+	"unsafe"
+)
+
+const (
+	reparseTagMountPoint = 0xA0000003
+	reparseTagSymlink    = 0xA000000C
+)
+
+type reparseDataBuffer struct {
+	ReparseTag           uint32
+	ReparseDataLength    uint16
+	Reserved             uint16
+	SubstituteNameOffset uint16
+	SubstituteNameLength uint16
+	PrintNameOffset      uint16
+	PrintNameLength      uint16
+}
+
+// ReparsePoint describes a Win32 symlink or mount point.
+type ReparsePoint struct {
+	Target       string
+	IsMountPoint bool
+}
+
+// UnsupportedReparsePointError is returned when trying to decode a non-symlink or
+// mount point reparse point.
+type UnsupportedReparsePointError struct {
+	Tag uint32
+}
+
+func (e *UnsupportedReparsePointError) Error() string {
+	return fmt.Sprintf("unsupported reparse point %x", e.Tag)
+}
+
+// DecodeReparsePoint decodes a Win32 REPARSE_DATA_BUFFER structure containing either a symlink
+// or a mount point.
+func DecodeReparsePoint(b []byte) (*ReparsePoint, error) {
+	tag := binary.LittleEndian.Uint32(b[0:4])
+	return DecodeReparsePointData(tag, b[8:])
+}
+
+func DecodeReparsePointData(tag uint32, b []byte) (*ReparsePoint, error) {
+	isMountPoint := false
+	switch tag {
+	case reparseTagMountPoint:
+		isMountPoint = true
+	case reparseTagSymlink:
+	default:
+		return nil, &UnsupportedReparsePointError{tag}
+	}
+	nameOffset := 8 + binary.LittleEndian.Uint16(b[4:6])
+	if !isMountPoint {
+		nameOffset += 4
+	}
+	nameLength := binary.LittleEndian.Uint16(b[6:8])
+	name := make([]uint16, nameLength/2)
+	err := binary.Read(bytes.NewReader(b[nameOffset:nameOffset+nameLength]), binary.LittleEndian, &name)
+	if err != nil {
+		return nil, err
+	}
+	return &ReparsePoint{string(utf16.Decode(name)), isMountPoint}, nil
+}
+
+func isDriveLetter(c byte) bool {
+	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+}
+
+// EncodeReparsePoint encodes a Win32 REPARSE_DATA_BUFFER structure describing a symlink or
+// mount point.
+func EncodeReparsePoint(rp *ReparsePoint) []byte {
+	// Generate an NT path and determine if this is a relative path.
+	var ntTarget string
+	relative := false
+	if strings.HasPrefix(rp.Target, `\\?\`) {
+		ntTarget = `\??\` + rp.Target[4:]
+	} else if strings.HasPrefix(rp.Target, `\\`) {
+		ntTarget = `\??\UNC\` + rp.Target[2:]
+	} else if len(rp.Target) >= 2 && isDriveLetter(rp.Target[0]) && rp.Target[1] == ':' {
+		ntTarget = `\??\` + rp.Target
+	} else {
+		ntTarget = rp.Target
+		relative = true
+	}
+
+	// The paths must be NUL-terminated even though they are counted strings.
+	target16 := utf16.Encode([]rune(rp.Target + "\x00"))
+	ntTarget16 := utf16.Encode([]rune(ntTarget + "\x00"))
+
+	size := int(unsafe.Sizeof(reparseDataBuffer{})) - 8
+	size += len(ntTarget16)*2 + len(target16)*2
+
+	tag := uint32(reparseTagMountPoint)
+	if !rp.IsMountPoint {
+		tag = reparseTagSymlink
+		size += 4 // Add room for symlink flags
+	}
+
+	data := reparseDataBuffer{
+		ReparseTag:           tag,
+		ReparseDataLength:    uint16(size),
+		SubstituteNameOffset: 0,
+		SubstituteNameLength: uint16((len(ntTarget16) - 1) * 2),
+		PrintNameOffset:      uint16(len(ntTarget16) * 2),
+		PrintNameLength:      uint16((len(target16) - 1) * 2),
+	}
+
+	var b bytes.Buffer
+	binary.Write(&b, binary.LittleEndian, &data)
+	if !rp.IsMountPoint {
+		flags := uint32(0)
+		if relative {
+			flags |= 1
+		}
+		binary.Write(&b, binary.LittleEndian, flags)
+	}
+
+	binary.Write(&b, binary.LittleEndian, ntTarget16)
+	binary.Write(&b, binary.LittleEndian, target16)
+	return b.Bytes()
+}

vendor/github.com/Microsoft/go-winio/sd.go

@@ -0,0 +1,98 @@
+// +build windows
+
+package winio
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+//sys lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) = advapi32.LookupAccountNameW
+//sys convertSidToStringSid(sid *byte, str **uint16) (err error) = advapi32.ConvertSidToStringSidW
+//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
+//sys convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) = advapi32.ConvertSecurityDescriptorToStringSecurityDescriptorW
+//sys localFree(mem uintptr) = LocalFree
+//sys getSecurityDescriptorLength(sd uintptr) (len uint32) = advapi32.GetSecurityDescriptorLength
+
+const (
+	cERROR_NONE_MAPPED = syscall.Errno(1332)
+)
+
+type AccountLookupError struct {
+	Name string
+	Err  error
+}
+
+func (e *AccountLookupError) Error() string {
+	if e.Name == "" {
+		return "lookup account: empty account name specified"
+	}
+	var s string
+	switch e.Err {
+	case cERROR_NONE_MAPPED:
+		s = "not found"
+	default:
+		s = e.Err.Error()
+	}
+	return "lookup account " + e.Name + ": " + s
+}
+
+type SddlConversionError struct {
+	Sddl string
+	Err  error
+}
+
+func (e *SddlConversionError) Error() string {
+	return "convert " + e.Sddl + ": " + e.Err.Error()
+}
+
+// LookupSidByName looks up the SID of an account by name
+func LookupSidByName(name string) (sid string, err error) {
+	if name == "" {
+		return "", &AccountLookupError{name, cERROR_NONE_MAPPED}
+	}
+
+	var sidSize, sidNameUse, refDomainSize uint32
+	err = lookupAccountName(nil, name, nil, &sidSize, nil, &refDomainSize, &sidNameUse)
+	if err != nil && err != syscall.ERROR_INSUFFICIENT_BUFFER {
+		return "", &AccountLookupError{name, err}
+	}
+	sidBuffer := make([]byte, sidSize)
+	refDomainBuffer := make([]uint16, refDomainSize)
+	err = lookupAccountName(nil, name, &sidBuffer[0], &sidSize, &refDomainBuffer[0], &refDomainSize, &sidNameUse)
+	if err != nil {
+		return "", &AccountLookupError{name, err}
+	}
+	var strBuffer *uint16
+	err = convertSidToStringSid(&sidBuffer[0], &strBuffer)
+	if err != nil {
+		return "", &AccountLookupError{name, err}
+	}
+	sid = syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(strBuffer))[:])
+	localFree(uintptr(unsafe.Pointer(strBuffer)))
+	return sid, nil
+}
+
+func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
+	var sdBuffer uintptr
+	err := convertStringSecurityDescriptorToSecurityDescriptor(sddl, 1, &sdBuffer, nil)
+	if err != nil {
+		return nil, &SddlConversionError{sddl, err}
+	}
+	defer localFree(sdBuffer)
+	sd := make([]byte, getSecurityDescriptorLength(sdBuffer))
+	copy(sd, (*[0xffff]byte)(unsafe.Pointer(sdBuffer))[:len(sd)])
+	return sd, nil
+}
+
+func SecurityDescriptorToSddl(sd []byte) (string, error) {
+	var sddl *uint16
+	// The returned string length seems to including an aribtrary number of terminating NULs.
+	// Don't use it.
+	err := convertSecurityDescriptorToStringSecurityDescriptor(&sd[0], 1, 0xff, &sddl, nil)
+	if err != nil {
+		return "", err
+	}
+	defer localFree(uintptr(unsafe.Pointer(sddl)))
+	return syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(sddl))[:]), nil
+}

vendor/github.com/Microsoft/go-winio/syscall.go

@@ -0,0 +1,3 @@
+package winio
+
+//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go file.go pipe.go sd.go fileinfo.go privilege.go backup.go

vendor/github.com/Microsoft/go-winio/zsyscall_windows.go

@@ -0,0 +1,496 @@
+// MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
+
+package winio
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+var (
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+	modwinmm    = windows.NewLazySystemDLL("winmm.dll")
+	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
+
+	procCancelIoEx                                           = modkernel32.NewProc("CancelIoEx")
+	procCreateIoCompletionPort                               = modkernel32.NewProc("CreateIoCompletionPort")
+	procGetQueuedCompletionStatus                            = modkernel32.NewProc("GetQueuedCompletionStatus")
+	procSetFileCompletionNotificationModes                   = modkernel32.NewProc("SetFileCompletionNotificationModes")
+	proctimeBeginPeriod                                      = modwinmm.NewProc("timeBeginPeriod")
+	procConnectNamedPipe                                     = modkernel32.NewProc("ConnectNamedPipe")
+	procCreateNamedPipeW                                     = modkernel32.NewProc("CreateNamedPipeW")
+	procCreateFileW                                          = modkernel32.NewProc("CreateFileW")
+	procWaitNamedPipeW                                       = modkernel32.NewProc("WaitNamedPipeW")
+	procGetNamedPipeInfo                                     = modkernel32.NewProc("GetNamedPipeInfo")
+	procGetNamedPipeHandleStateW                             = modkernel32.NewProc("GetNamedPipeHandleStateW")
+	procLookupAccountNameW                                   = modadvapi32.NewProc("LookupAccountNameW")
+	procConvertSidToStringSidW                               = modadvapi32.NewProc("ConvertSidToStringSidW")
+	procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
+	procConvertSecurityDescriptorToStringSecurityDescriptorW = modadvapi32.NewProc("ConvertSecurityDescriptorToStringSecurityDescriptorW")
+	procLocalFree                                            = modkernel32.NewProc("LocalFree")
+	procGetSecurityDescriptorLength                          = modadvapi32.NewProc("GetSecurityDescriptorLength")
+	procGetFileInformationByHandleEx                         = modkernel32.NewProc("GetFileInformationByHandleEx")
+	procSetFileInformationByHandle                           = modkernel32.NewProc("SetFileInformationByHandle")
+	procAdjustTokenPrivileges                                = modadvapi32.NewProc("AdjustTokenPrivileges")
+	procImpersonateSelf                                      = modadvapi32.NewProc("ImpersonateSelf")
+	procRevertToSelf                                         = modadvapi32.NewProc("RevertToSelf")
+	procOpenThreadToken                                      = modadvapi32.NewProc("OpenThreadToken")
+	procGetCurrentThread                                     = modkernel32.NewProc("GetCurrentThread")
+	procLookupPrivilegeValueW                                = modadvapi32.NewProc("LookupPrivilegeValueW")
+	procLookupPrivilegeNameW                                 = modadvapi32.NewProc("LookupPrivilegeNameW")
+	procLookupPrivilegeDisplayNameW                          = modadvapi32.NewProc("LookupPrivilegeDisplayNameW")
+	procBackupRead                                           = modkernel32.NewProc("BackupRead")
+	procBackupWrite                                          = modkernel32.NewProc("BackupWrite")
+)
+
+func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procCancelIoEx.Addr(), 2, uintptr(file), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall6(procCreateIoCompletionPort.Addr(), 4, uintptr(file), uintptr(port), uintptr(key), uintptr(threadCount), 0, 0)
+	newport = syscall.Handle(r0)
+	if newport == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(port), uintptr(unsafe.Pointer(bytes)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(o)), uintptr(timeout), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetFileCompletionNotificationModes.Addr(), 2, uintptr(h), uintptr(flags), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func timeBeginPeriod(period uint32) (n int32) {
+	r0, _, _ := syscall.Syscall(proctimeBeginPeriod.Addr(), 1, uintptr(period), 0, 0)
+	n = int32(r0)
+	return
+}
+
+func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procConnectNamedPipe.Addr(), 2, uintptr(pipe), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *securityAttributes) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createNamedPipe(_p0, flags, pipeMode, maxInstances, outSize, inSize, defaultTimeout, sa)
+}
+
+func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *securityAttributes) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateNamedPipeW.Addr(), 8, uintptr(unsafe.Pointer(name)), uintptr(flags), uintptr(pipeMode), uintptr(maxInstances), uintptr(outSize), uintptr(inSize), uintptr(defaultTimeout), uintptr(unsafe.Pointer(sa)), 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createFile(name string, access uint32, mode uint32, sa *securityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createFile(_p0, access, mode, sa, createmode, attrs, templatefile)
+}
+
+func _createFile(name *uint16, access uint32, mode uint32, sa *securityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateFileW.Addr(), 7, uintptr(unsafe.Pointer(name)), uintptr(access), uintptr(mode), uintptr(unsafe.Pointer(sa)), uintptr(createmode), uintptr(attrs), uintptr(templatefile), 0, 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func waitNamedPipe(name string, timeout uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _waitNamedPipe(_p0, timeout)
+}
+
+func _waitNamedPipe(name *uint16, timeout uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procWaitNamedPipeW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(timeout), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetNamedPipeInfo.Addr(), 5, uintptr(pipe), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(outSize)), uintptr(unsafe.Pointer(inSize)), uintptr(unsafe.Pointer(maxInstances)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procGetNamedPipeHandleStateW.Addr(), 7, uintptr(pipe), uintptr(unsafe.Pointer(state)), uintptr(unsafe.Pointer(curInstances)), uintptr(unsafe.Pointer(maxCollectionCount)), uintptr(unsafe.Pointer(collectDataTimeout)), uintptr(unsafe.Pointer(userName)), uintptr(maxUserNameSize), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(accountName)
+	if err != nil {
+		return
+	}
+	return _lookupAccountName(systemName, _p0, sid, sidSize, refDomain, refDomainSize, sidNameUse)
+}
+
+func _lookupAccountName(systemName *uint16, accountName *uint16, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procLookupAccountNameW.Addr(), 7, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(accountName)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(sidSize)), uintptr(unsafe.Pointer(refDomain)), uintptr(unsafe.Pointer(refDomainSize)), uintptr(unsafe.Pointer(sidNameUse)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSidToStringSid(sid *byte, str **uint16) (err error) {
+	r1, _, e1 := syscall.Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(str)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(str)
+	if err != nil {
+		return
+	}
+	return _convertStringSecurityDescriptorToSecurityDescriptor(_p0, revision, sd, size)
+}
+
+func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision uint32, sd *uintptr, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertStringSecurityDescriptorToSecurityDescriptorW.Addr(), 4, uintptr(unsafe.Pointer(str)), uintptr(revision), uintptr(unsafe.Pointer(sd)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertSecurityDescriptorToStringSecurityDescriptorW.Addr(), 5, uintptr(unsafe.Pointer(sd)), uintptr(revision), uintptr(secInfo), uintptr(unsafe.Pointer(sddl)), uintptr(unsafe.Pointer(sddlSize)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func localFree(mem uintptr) {
+	syscall.Syscall(procLocalFree.Addr(), 1, uintptr(mem), 0, 0)
+	return
+}
+
+func getSecurityDescriptorLength(sd uintptr) (len uint32) {
+	r0, _, _ := syscall.Syscall(procGetSecurityDescriptorLength.Addr(), 1, uintptr(sd), 0, 0)
+	len = uint32(r0)
+	return
+}
+
+func getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procSetFileInformationByHandle.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) {
+	var _p0 uint32
+	if releaseAll {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r0, _, e1 := syscall.Syscall6(procAdjustTokenPrivileges.Addr(), 6, uintptr(token), uintptr(_p0), uintptr(unsafe.Pointer(input)), uintptr(outputSize), uintptr(unsafe.Pointer(output)), uintptr(unsafe.Pointer(requiredSize)))
+	success = r0 != 0
+	if true {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func impersonateSelf(level uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procImpersonateSelf.Addr(), 1, uintptr(level), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func revertToSelf() (err error) {
+	r1, _, e1 := syscall.Syscall(procRevertToSelf.Addr(), 0, 0, 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool, token *windows.Token) (err error) {
+	var _p0 uint32
+	if openAsSelf {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r1, _, e1 := syscall.Syscall6(procOpenThreadToken.Addr(), 4, uintptr(thread), uintptr(accessMask), uintptr(_p0), uintptr(unsafe.Pointer(token)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getCurrentThread() (h syscall.Handle) {
+	r0, _, _ := syscall.Syscall(procGetCurrentThread.Addr(), 0, 0, 0, 0)
+	h = syscall.Handle(r0)
+	return
+}
+
+func lookupPrivilegeValue(systemName string, name string, luid *uint64) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeValue(_p0, _p1, luid)
+}
+
+func _lookupPrivilegeValue(systemName *uint16, name *uint16, luid *uint64) (err error) {
+	r1, _, e1 := syscall.Syscall(procLookupPrivilegeValueW.Addr(), 3, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(luid)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeName(systemName string, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeName(_p0, luid, buffer, size)
+}
+
+func _lookupPrivilegeName(systemName *uint16, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeNameW.Addr(), 4, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(luid)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeDisplayName(_p0, name, buffer, size, languageId)
+}
+
+func _lookupPrivilegeDisplayName(systemName *uint16, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeDisplayNameW.Addr(), 5, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), uintptr(unsafe.Pointer(languageId)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupRead.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesRead)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupWrite.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesWritten)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}

vendor/github.com/docker/docker/LICENSE

@@ -1,191 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        https://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
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-      and distribution as defined by Sections 1 through 9 of this document.
-
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-      the copyright owner that is granting the License.
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-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
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-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
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-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
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-      on behalf of whom a Contribution has been received by Licensor and
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-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
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-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   Copyright 2013-2016 Docker, Inc.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       https://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

vendor/github.com/docker/docker/NOTICE

@@ -1,19 +0,0 @@
-Docker
-Copyright 2012-2016 Docker, Inc.
-
-This product includes software developed at Docker, Inc. (https://www.docker.com).
-
-This product contains software (https://github.com/kr/pty) developed
-by Keith Rarick, licensed under the MIT License.
-
-The following is courtesy of our legal counsel:
-
-
-Use and transfer of Docker may be subject to certain restrictions by the
-United States and other governments.
-It is your responsibility to ensure that your use and/or transfer does not
-violate applicable laws.
-
-For more information, please see https://www.bis.doc.gov
-
-See also https://www.apache.org/dev/crypto.html and/or seek legal counsel.

vendor/github.com/docker/docker/README.md

@@ -1,304 +0,0 @@
-Docker: the container engine [![Release](https://img.shields.io/github/release/docker/docker.svg)](https://github.com/docker/docker/releases/latest)
-============================
-
-Docker is an open source project to pack, ship and run any application
-as a lightweight container.
-
-Docker containers are both *hardware-agnostic* and *platform-agnostic*.
-This means they can run anywhere, from your laptop to the largest
-cloud compute instance and everything in between - and they don't require
-you to use a particular language, framework or packaging system. That
-makes them great building blocks for deploying and scaling web apps,
-databases, and backend services without depending on a particular stack
-or provider.
-
-Docker began as an open-source implementation of the deployment engine which
-powered [dotCloud](http://web.archive.org/web/20130530031104/https://www.dotcloud.com/),
-a popular Platform-as-a-Service. It benefits directly from the experience
-accumulated over several years of large-scale operation and support of hundreds
-of thousands of applications and databases.
-
-![Docker logo](docs/static_files/docker-logo-compressed.png "Docker")
-
-## Security Disclosure
-
-Security is very important to us. If you have any issue regarding security,
-please disclose the information responsibly by sending an email to
-security@docker.com and not by creating a GitHub issue.
-
-## Better than VMs
-
-A common method for distributing applications and sandboxing their
-execution is to use virtual machines, or VMs. Typical VM formats are
-VMware's vmdk, Oracle VirtualBox's vdi, and Amazon EC2's ami. In theory
-these formats should allow every developer to automatically package
-their application into a "machine" for easy distribution and deployment.
-In practice, that almost never happens, for a few reasons:
-
-  * *Size*: VMs are very large which makes them impractical to store
-     and transfer.
-  * *Performance*: running VMs consumes significant CPU and memory,
-    which makes them impractical in many scenarios, for example local
-    development of multi-tier applications, and large-scale deployment
-    of cpu and memory-intensive applications on large numbers of
-    machines.
-  * *Portability*: competing VM environments don't play well with each
-     other. Although conversion tools do exist, they are limited and
-     add even more overhead.
-  * *Hardware-centric*: VMs were designed with machine operators in
-    mind, not software developers. As a result, they offer very
-    limited tooling for what developers need most: building, testing
-    and running their software. For example, VMs offer no facilities
-    for application versioning, monitoring, configuration, logging or
-    service discovery.
-
-By contrast, Docker relies on a different sandboxing method known as
-*containerization*. Unlike traditional virtualization, containerization
-takes place at the kernel level. Most modern operating system kernels
-now support the primitives necessary for containerization, including
-Linux with [openvz](https://openvz.org),
-[vserver](http://linux-vserver.org) and more recently
-[lxc](https://linuxcontainers.org/), Solaris with
-[zones](https://docs.oracle.com/cd/E26502_01/html/E29024/preface-1.html#scrolltoc),
-and FreeBSD with
-[Jails](https://www.freebsd.org/doc/handbook/jails.html).
-
-Docker builds on top of these low-level primitives to offer developers a
-portable format and runtime environment that solves all four problems.
-Docker containers are small (and their transfer can be optimized with
-layers), they have basically zero memory and cpu overhead, they are
-completely portable, and are designed from the ground up with an
-application-centric design.
-
-Perhaps best of all, because Docker operates at the OS level, it can still be
-run inside a VM!
-
-## Plays well with others
-
-Docker does not require you to buy into a particular programming
-language, framework, packaging system, or configuration language.
-
-Is your application a Unix process? Does it use files, tcp connections,
-environment variables, standard Unix streams and command-line arguments
-as inputs and outputs? Then Docker can run it.
-
-Can your application's build be expressed as a sequence of such
-commands? Then Docker can build it.
-
-## Escape dependency hell
-
-A common problem for developers is the difficulty of managing all
-their application's dependencies in a simple and automated way.
-
-This is usually difficult for several reasons:
-
-  * *Cross-platform dependencies*. Modern applications often depend on
-    a combination of system libraries and binaries, language-specific
-    packages, framework-specific modules, internal components
-    developed for another project, etc. These dependencies live in
-    different "worlds" and require different tools - these tools
-    typically don't work well with each other, requiring awkward
-    custom integrations.
-
-  * *Conflicting dependencies*. Different applications may depend on
-    different versions of the same dependency. Packaging tools handle
-    these situations with various degrees of ease - but they all
-    handle them in different and incompatible ways, which again forces
-    the developer to do extra work.
-
-  * *Custom dependencies*. A developer may need to prepare a custom
-    version of their application's dependency. Some packaging systems
-    can handle custom versions of a dependency, others can't - and all
-    of them handle it differently.
-
-
-Docker solves the problem of dependency hell by giving the developer a simple
-way to express *all* their application's dependencies in one place, while
-streamlining the process of assembling them. If this makes you think of
-[XKCD 927](https://xkcd.com/927/), don't worry. Docker doesn't
-*replace* your favorite packaging systems. It simply orchestrates
-their use in a simple and repeatable way. How does it do that? With
-layers.
-
-Docker defines a build as running a sequence of Unix commands, one
-after the other, in the same container. Build commands modify the
-contents of the container (usually by installing new files on the
-filesystem), the next command modifies it some more, etc. Since each
-build command inherits the result of the previous commands, the
-*order* in which the commands are executed expresses *dependencies*.
-
-Here's a typical Docker build process:
-
-```bash
-FROM ubuntu:12.04
-RUN apt-get update && apt-get install -y python python-pip curl
-RUN curl -sSL https://github.com/shykes/helloflask/archive/master.tar.gz | tar -xzv
-RUN cd helloflask-master && pip install -r requirements.txt
-```
-
-Note that Docker doesn't care *how* dependencies are built - as long
-as they can be built by running a Unix command in a container.
-
-
-Getting started
-===============
-
-Docker can be installed either on your computer for building applications or
-on servers for running them. To get started, [check out the installation
-instructions in the
-documentation](https://docs.docker.com/engine/installation/).
-
-Usage examples
-==============
-
-Docker can be used to run short-lived commands, long-running daemons
-(app servers, databases, etc.), interactive shell sessions, etc.
-
-You can find a [list of real-world
-examples](https://docs.docker.com/engine/examples/) in the
-documentation.
-
-Under the hood
---------------
-
-Under the hood, Docker is built on the following components:
-
-* The
-  [cgroups](https://www.kernel.org/doc/Documentation/cgroup-v1/cgroups.txt)
-  and
-  [namespaces](http://man7.org/linux/man-pages/man7/namespaces.7.html)
-  capabilities of the Linux kernel
-* The [Go](https://golang.org) programming language
-* The [Docker Image Specification](https://github.com/docker/docker/blob/master/image/spec/v1.md)
-* The [Libcontainer Specification](https://github.com/opencontainers/runc/blob/master/libcontainer/SPEC.md)
-
-Contributing to Docker [![GoDoc](https://godoc.org/github.com/docker/docker?status.svg)](https://godoc.org/github.com/docker/docker)
-======================
-
-| **Master** (Linux) | **Experimental** (Linux) | **Windows** | **FreeBSD** |
-|------------------|----------------------|---------|---------|
-| [![Jenkins Build Status](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master/badge/icon)](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master/) | [![Jenkins Build Status](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master%20%28experimental%29/badge/icon)](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master%20%28experimental%29/) | [![Build Status](http://jenkins.dockerproject.org/job/Docker%20Master%20(windows)/badge/icon)](http://jenkins.dockerproject.org/job/Docker%20Master%20(windows)/) | [![Build Status](http://jenkins.dockerproject.org/job/Docker%20Master%20(freebsd)/badge/icon)](http://jenkins.dockerproject.org/job/Docker%20Master%20(freebsd)/) |
-
-Want to hack on Docker? Awesome! We have [instructions to help you get
-started contributing code or documentation](https://docs.docker.com/opensource/project/who-written-for/).
-
-These instructions are probably not perfect, please let us know if anything
-feels wrong or incomplete. Better yet, submit a PR and improve them yourself.
-
-Getting the development builds
-==============================
-
-Want to run Docker from a master build? You can download
-master builds at [master.dockerproject.org](https://master.dockerproject.org).
-They are updated with each commit merged into the master branch.
-
-Don't know how to use that super cool new feature in the master build? Check
-out the master docs at
-[docs.master.dockerproject.org](http://docs.master.dockerproject.org).
-
-How the project is run
-======================
-
-Docker is a very, very active project. If you want to learn more about how it is run,
-or want to get more involved, the best place to start is [the project directory](https://github.com/docker/docker/tree/master/project).
-
-We are always open to suggestions on process improvements, and are always looking for more maintainers.
-
-### Talking to other Docker users and contributors
-
-<table class="tg">
-  <col width="45%">
-  <col width="65%">
-  <tr>
-    <td>Internet&nbsp;Relay&nbsp;Chat&nbsp;(IRC)</td>
-    <td>
-      <p>
-        IRC is a direct line to our most knowledgeable Docker users; we have
-        both the  <code>#docker</code> and <code>#docker-dev</code> group on
-        <strong>irc.freenode.net</strong>.
-        IRC is a rich chat protocol but it can overwhelm new users. You can search
-        <a href="https://botbot.me/freenode/docker/#" target="_blank">our chat archives</a>.
-      </p>
-      Read our <a href="https://docs.docker.com/opensource/get-help/#/irc-quickstart" target="_blank">IRC quickstart guide</a> for an easy way to get started.
-    </td>
-  </tr>
-  <tr>
-    <td>Docker Community Forums</td>
-    <td>
-      The <a href="https://forums.docker.com/c/open-source-projects/de" target="_blank">Docker Engine</a>
-      group is for users of the Docker Engine project.
-    </td>
-  </tr>
-  <tr>
-    <td>Google Groups</td>
-    <td>
-      The <a href="https://groups.google.com/forum/#!forum/docker-dev"
-      target="_blank">docker-dev</a> group is for contributors and other people
-      contributing to the Docker project.  You can join this group without a
-      Google account by sending an email to <a
-      href="mailto:docker-dev+subscribe@googlegroups.com">docker-dev+subscribe@googlegroups.com</a>.
-      You'll receive a join-request message; simply reply to the message to
-      confirm your subscription.
-    </td>
-  </tr>
-  <tr>
-    <td>Twitter</td>
-    <td>
-      You can follow <a href="https://twitter.com/docker/" target="_blank">Docker's Twitter feed</a>
-      to get updates on our products. You can also tweet us questions or just
-      share blogs or stories.
-    </td>
-  </tr>
-  <tr>
-    <td>Stack Overflow</td>
-    <td>
-      Stack Overflow has over 7000 Docker questions listed. We regularly
-      monitor <a href="https://stackoverflow.com/search?tab=newest&q=docker" target="_blank">Docker questions</a>
-      and so do many other knowledgeable Docker users.
-    </td>
-  </tr>
-</table>
-
-### Legal
-
-*Brought to you courtesy of our legal counsel. For more context,
-please see the [NOTICE](https://github.com/docker/docker/blob/master/NOTICE) document in this repo.*
-
-Use and transfer of Docker may be subject to certain restrictions by the
-United States and other governments.
-
-It is your responsibility to ensure that your use and/or transfer does not
-violate applicable laws.
-
-For more information, please see https://www.bis.doc.gov
-
-
-Licensing
-=========
-Docker is licensed under the Apache License, Version 2.0. See
-[LICENSE](https://github.com/docker/docker/blob/master/LICENSE) for the full
-license text.
-
-Other Docker Related Projects
-=============================
-There are a number of projects under development that are based on Docker's
-core technology. These projects expand the tooling built around the
-Docker platform to broaden its application and utility.
-
-* [Docker Registry](https://github.com/docker/distribution): Registry
-server for Docker (hosting/delivery of repositories and images)
-* [Docker Machine](https://github.com/docker/machine): Machine management
-for a container-centric world
-* [Docker Swarm](https://github.com/docker/swarm): A Docker-native clustering
-system
-* [Docker Compose](https://github.com/docker/compose) (formerly Fig):
-Define and run multi-container apps
-* [Kitematic](https://github.com/docker/kitematic): The easiest way to use
-Docker on Mac and Windows
-
-If you know of another project underway that should be listed here, please help
-us keep this list up-to-date by submitting a PR.
-
-Awesome-Docker
-==============
-You can find more projects, tools and articles related to Docker on the [awesome-docker list](https://github.com/veggiemonk/awesome-docker). Add your project there.

vendor/github.com/docker/docker/pkg/README.md

@@ -1,11 +0,0 @@
-pkg/ is a collection of utility packages used by the Docker project without being specific to its internals.
-
-Utility packages are kept separate from the docker core codebase to keep it as small and concise as possible.
-If some utilities grow larger and their APIs stabilize, they may be moved to their own repository under the
-Docker organization, to facilitate re-use by other projects. However that is not the priority.
-
-The directory `pkg` is named after the same directory in the camlistore project. Since Brad is a core
-Go maintainer, we thought it made sense to copy his methods for organizing Go code :) Thanks Brad!
-
-Because utility packages are small and neatly separated from the rest of the codebase, they are a good
-place to start for aspiring maintainers and contributors. Get in touch if you want to help maintain them!

vendor/github.com/docker/docker/pkg/archive/README.md

@@ -1 +0,0 @@
-This code provides helper functions for dealing with archive files.

vendor/github.com/docker/docker/pkg/archive/archive_linux.go

@@ -1,95 +0,0 @@
-package archive
-
-import (
-	"archive/tar"
-	"os"
-	"path/filepath"
-	"strings"
-	"syscall"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-func getWhiteoutConverter(format WhiteoutFormat) tarWhiteoutConverter {
-	if format == OverlayWhiteoutFormat {
-		return overlayWhiteoutConverter{}
-	}
-	return nil
-}
-
-type overlayWhiteoutConverter struct{}
-
-func (overlayWhiteoutConverter) ConvertWrite(hdr *tar.Header, path string, fi os.FileInfo) (wo *tar.Header, err error) {
-	// convert whiteouts to AUFS format
-	if fi.Mode()&os.ModeCharDevice != 0 && hdr.Devmajor == 0 && hdr.Devminor == 0 {
-		// we just rename the file and make it normal
-		dir, filename := filepath.Split(hdr.Name)
-		hdr.Name = filepath.Join(dir, WhiteoutPrefix+filename)
-		hdr.Mode = 0600
-		hdr.Typeflag = tar.TypeReg
-		hdr.Size = 0
-	}
-
-	if fi.Mode()&os.ModeDir != 0 {
-		// convert opaque dirs to AUFS format by writing an empty file with the prefix
-		opaque, err := system.Lgetxattr(path, "trusted.overlay.opaque")
-		if err != nil {
-			return nil, err
-		}
-		if len(opaque) == 1 && opaque[0] == 'y' {
-			if hdr.Xattrs != nil {
-				delete(hdr.Xattrs, "trusted.overlay.opaque")
-			}
-
-			// create a header for the whiteout file
-			// it should inherit some properties from the parent, but be a regular file
-			wo = &tar.Header{
-				Typeflag:   tar.TypeReg,
-				Mode:       hdr.Mode & int64(os.ModePerm),
-				Name:       filepath.Join(hdr.Name, WhiteoutOpaqueDir),
-				Size:       0,
-				Uid:        hdr.Uid,
-				Uname:      hdr.Uname,
-				Gid:        hdr.Gid,
-				Gname:      hdr.Gname,
-				AccessTime: hdr.AccessTime,
-				ChangeTime: hdr.ChangeTime,
-			}
-		}
-	}
-
-	return
-}
-
-func (overlayWhiteoutConverter) ConvertRead(hdr *tar.Header, path string) (bool, error) {
-	base := filepath.Base(path)
-	dir := filepath.Dir(path)
-
-	// if a directory is marked as opaque by the AUFS special file, we need to translate that to overlay
-	if base == WhiteoutOpaqueDir {
-		if err := syscall.Setxattr(dir, "trusted.overlay.opaque", []byte{'y'}, 0); err != nil {
-			return false, err
-		}
-
-		// don't write the file itself
-		return false, nil
-	}
-
-	// if a file was deleted and we are using overlay, we need to create a character device
-	if strings.HasPrefix(base, WhiteoutPrefix) {
-		originalBase := base[len(WhiteoutPrefix):]
-		originalPath := filepath.Join(dir, originalBase)
-
-		if err := syscall.Mknod(originalPath, syscall.S_IFCHR, 0); err != nil {
-			return false, err
-		}
-		if err := os.Chown(originalPath, hdr.Uid, hdr.Gid); err != nil {
-			return false, err
-		}
-
-		// don't write the file itself
-		return false, nil
-	}
-
-	return true, nil
-}

vendor/github.com/docker/docker/pkg/archive/archive_other.go

@@ -1,7 +0,0 @@
-// +build !linux
-
-package archive
-
-func getWhiteoutConverter(format WhiteoutFormat) tarWhiteoutConverter {
-	return nil
-}

vendor/github.com/docker/docker/pkg/archive/archive_unix.go

@@ -1,118 +0,0 @@
-// +build !windows
-
-package archive
-
-import (
-	"archive/tar"
-	"errors"
-	"os"
-	"path/filepath"
-	"syscall"
-
-	"github.com/docker/docker/pkg/system"
-	rsystem "github.com/opencontainers/runc/libcontainer/system"
-)
-
-// fixVolumePathPrefix does platform specific processing to ensure that if
-// the path being passed in is not in a volume path format, convert it to one.
-func fixVolumePathPrefix(srcPath string) string {
-	return srcPath
-}
-
-// getWalkRoot calculates the root path when performing a TarWithOptions.
-// We use a separate function as this is platform specific. On Linux, we
-// can't use filepath.Join(srcPath,include) because this will clean away
-// a trailing "." or "/" which may be important.
-func getWalkRoot(srcPath string, include string) string {
-	return srcPath + string(filepath.Separator) + include
-}
-
-// CanonicalTarNameForPath returns platform-specific filepath
-// to canonical posix-style path for tar archival. p is relative
-// path.
-func CanonicalTarNameForPath(p string) (string, error) {
-	return p, nil // already unix-style
-}
-
-// chmodTarEntry is used to adjust the file permissions used in tar header based
-// on the platform the archival is done.
-
-func chmodTarEntry(perm os.FileMode) os.FileMode {
-	return perm // noop for unix as golang APIs provide perm bits correctly
-}
-
-func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (inode uint64, err error) {
-	s, ok := stat.(*syscall.Stat_t)
-
-	if !ok {
-		err = errors.New("cannot convert stat value to syscall.Stat_t")
-		return
-	}
-
-	inode = uint64(s.Ino)
-
-	// Currently go does not fill in the major/minors
-	if s.Mode&syscall.S_IFBLK != 0 ||
-		s.Mode&syscall.S_IFCHR != 0 {
-		hdr.Devmajor = int64(major(uint64(s.Rdev)))
-		hdr.Devminor = int64(minor(uint64(s.Rdev)))
-	}
-
-	return
-}
-
-func getFileUIDGID(stat interface{}) (int, int, error) {
-	s, ok := stat.(*syscall.Stat_t)
-
-	if !ok {
-		return -1, -1, errors.New("cannot convert stat value to syscall.Stat_t")
-	}
-	return int(s.Uid), int(s.Gid), nil
-}
-
-func major(device uint64) uint64 {
-	return (device >> 8) & 0xfff
-}
-
-func minor(device uint64) uint64 {
-	return (device & 0xff) | ((device >> 12) & 0xfff00)
-}
-
-// handleTarTypeBlockCharFifo is an OS-specific helper function used by
-// createTarFile to handle the following types of header: Block; Char; Fifo
-func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
-	if rsystem.RunningInUserNS() {
-		// cannot create a device if running in user namespace
-		return nil
-	}
-
-	mode := uint32(hdr.Mode & 07777)
-	switch hdr.Typeflag {
-	case tar.TypeBlock:
-		mode |= syscall.S_IFBLK
-	case tar.TypeChar:
-		mode |= syscall.S_IFCHR
-	case tar.TypeFifo:
-		mode |= syscall.S_IFIFO
-	}
-
-	if err := system.Mknod(path, mode, int(system.Mkdev(hdr.Devmajor, hdr.Devminor))); err != nil {
-		return err
-	}
-	return nil
-}
-
-func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
-	if hdr.Typeflag == tar.TypeLink {
-		if fi, err := os.Lstat(hdr.Linkname); err == nil && (fi.Mode()&os.ModeSymlink == 0) {
-			if err := os.Chmod(path, hdrInfo.Mode()); err != nil {
-				return err
-			}
-		}
-	} else if hdr.Typeflag != tar.TypeSymlink {
-		if err := os.Chmod(path, hdrInfo.Mode()); err != nil {
-			return err
-		}
-	}
-	return nil
-}

vendor/github.com/docker/docker/pkg/archive/archive_windows.go

@@ -1,70 +0,0 @@
-// +build windows
-
-package archive
-
-import (
-	"archive/tar"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/docker/docker/pkg/longpath"
-)
-
-// fixVolumePathPrefix does platform specific processing to ensure that if
-// the path being passed in is not in a volume path format, convert it to one.
-func fixVolumePathPrefix(srcPath string) string {
-	return longpath.AddPrefix(srcPath)
-}
-
-// getWalkRoot calculates the root path when performing a TarWithOptions.
-// We use a separate function as this is platform specific.
-func getWalkRoot(srcPath string, include string) string {
-	return filepath.Join(srcPath, include)
-}
-
-// CanonicalTarNameForPath returns platform-specific filepath
-// to canonical posix-style path for tar archival. p is relative
-// path.
-func CanonicalTarNameForPath(p string) (string, error) {
-	// windows: convert windows style relative path with backslashes
-	// into forward slashes. Since windows does not allow '/' or '\'
-	// in file names, it is mostly safe to replace however we must
-	// check just in case
-	if strings.Contains(p, "/") {
-		return "", fmt.Errorf("Windows path contains forward slash: %s", p)
-	}
-	return strings.Replace(p, string(os.PathSeparator), "/", -1), nil
-
-}
-
-// chmodTarEntry is used to adjust the file permissions used in tar header based
-// on the platform the archival is done.
-func chmodTarEntry(perm os.FileMode) os.FileMode {
-	perm &= 0755
-	// Add the x bit: make everything +x from windows
-	perm |= 0111
-
-	return perm
-}
-
-func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (inode uint64, err error) {
-	// do nothing. no notion of Rdev, Inode, Nlink in stat on Windows
-	return
-}
-
-// handleTarTypeBlockCharFifo is an OS-specific helper function used by
-// createTarFile to handle the following types of header: Block; Char; Fifo
-func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
-	return nil
-}
-
-func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
-	return nil
-}
-
-func getFileUIDGID(stat interface{}) (int, int, error) {
-	// no notion of file ownership mapping yet on Windows
-	return 0, 0, nil
-}

vendor/github.com/docker/docker/pkg/archive/changes.go

@@ -1,446 +0,0 @@
-package archive
-
-import (
-	"archive/tar"
-	"bytes"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"syscall"
-	"time"
-
-	"github.com/Sirupsen/logrus"
-	"github.com/docker/docker/pkg/idtools"
-	"github.com/docker/docker/pkg/pools"
-	"github.com/docker/docker/pkg/system"
-)
-
-// ChangeType represents the change type.
-type ChangeType int
-
-const (
-	// ChangeModify represents the modify operation.
-	ChangeModify = iota
-	// ChangeAdd represents the add operation.
-	ChangeAdd
-	// ChangeDelete represents the delete operation.
-	ChangeDelete
-)
-
-func (c ChangeType) String() string {
-	switch c {
-	case ChangeModify:
-		return "C"
-	case ChangeAdd:
-		return "A"
-	case ChangeDelete:
-		return "D"
-	}
-	return ""
-}
-
-// Change represents a change, it wraps the change type and path.
-// It describes changes of the files in the path respect to the
-// parent layers. The change could be modify, add, delete.
-// This is used for layer diff.
-type Change struct {
-	Path string
-	Kind ChangeType
-}
-
-func (change *Change) String() string {
-	return fmt.Sprintf("%s %s", change.Kind, change.Path)
-}
-
-// for sort.Sort
-type changesByPath []Change
-
-func (c changesByPath) Less(i, j int) bool { return c[i].Path < c[j].Path }
-func (c changesByPath) Len() int           { return len(c) }
-func (c changesByPath) Swap(i, j int)      { c[j], c[i] = c[i], c[j] }
-
-// Gnu tar and the go tar writer don't have sub-second mtime
-// precision, which is problematic when we apply changes via tar
-// files, we handle this by comparing for exact times, *or* same
-// second count and either a or b having exactly 0 nanoseconds
-func sameFsTime(a, b time.Time) bool {
-	return a == b ||
-		(a.Unix() == b.Unix() &&
-			(a.Nanosecond() == 0 || b.Nanosecond() == 0))
-}
-
-func sameFsTimeSpec(a, b syscall.Timespec) bool {
-	return a.Sec == b.Sec &&
-		(a.Nsec == b.Nsec || a.Nsec == 0 || b.Nsec == 0)
-}
-
-// Changes walks the path rw and determines changes for the files in the path,
-// with respect to the parent layers
-func Changes(layers []string, rw string) ([]Change, error) {
-	return changes(layers, rw, aufsDeletedFile, aufsMetadataSkip)
-}
-
-func aufsMetadataSkip(path string) (skip bool, err error) {
-	skip, err = filepath.Match(string(os.PathSeparator)+WhiteoutMetaPrefix+"*", path)
-	if err != nil {
-		skip = true
-	}
-	return
-}
-
-func aufsDeletedFile(root, path string, fi os.FileInfo) (string, error) {
-	f := filepath.Base(path)
-
-	// If there is a whiteout, then the file was removed
-	if strings.HasPrefix(f, WhiteoutPrefix) {
-		originalFile := f[len(WhiteoutPrefix):]
-		return filepath.Join(filepath.Dir(path), originalFile), nil
-	}
-
-	return "", nil
-}
-
-type skipChange func(string) (bool, error)
-type deleteChange func(string, string, os.FileInfo) (string, error)
-
-func changes(layers []string, rw string, dc deleteChange, sc skipChange) ([]Change, error) {
-	var (
-		changes     []Change
-		changedDirs = make(map[string]struct{})
-	)
-
-	err := filepath.Walk(rw, func(path string, f os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		// Rebase path
-		path, err = filepath.Rel(rw, path)
-		if err != nil {
-			return err
-		}
-
-		// As this runs on the daemon side, file paths are OS specific.
-		path = filepath.Join(string(os.PathSeparator), path)
-
-		// Skip root
-		if path == string(os.PathSeparator) {
-			return nil
-		}
-
-		if sc != nil {
-			if skip, err := sc(path); skip {
-				return err
-			}
-		}
-
-		change := Change{
-			Path: path,
-		}
-
-		deletedFile, err := dc(rw, path, f)
-		if err != nil {
-			return err
-		}
-
-		// Find out what kind of modification happened
-		if deletedFile != "" {
-			change.Path = deletedFile
-			change.Kind = ChangeDelete
-		} else {
-			// Otherwise, the file was added
-			change.Kind = ChangeAdd
-
-			// ...Unless it already existed in a top layer, in which case, it's a modification
-			for _, layer := range layers {
-				stat, err := os.Stat(filepath.Join(layer, path))
-				if err != nil && !os.IsNotExist(err) {
-					return err
-				}
-				if err == nil {
-					// The file existed in the top layer, so that's a modification
-
-					// However, if it's a directory, maybe it wasn't actually modified.
-					// If you modify /foo/bar/baz, then /foo will be part of the changed files only because it's the parent of bar
-					if stat.IsDir() && f.IsDir() {
-						if f.Size() == stat.Size() && f.Mode() == stat.Mode() && sameFsTime(f.ModTime(), stat.ModTime()) {
-							// Both directories are the same, don't record the change
-							return nil
-						}
-					}
-					change.Kind = ChangeModify
-					break
-				}
-			}
-		}
-
-		// If /foo/bar/file.txt is modified, then /foo/bar must be part of the changed files.
-		// This block is here to ensure the change is recorded even if the
-		// modify time, mode and size of the parent directory in the rw and ro layers are all equal.
-		// Check https://github.com/docker/docker/pull/13590 for details.
-		if f.IsDir() {
-			changedDirs[path] = struct{}{}
-		}
-		if change.Kind == ChangeAdd || change.Kind == ChangeDelete {
-			parent := filepath.Dir(path)
-			if _, ok := changedDirs[parent]; !ok && parent != "/" {
-				changes = append(changes, Change{Path: parent, Kind: ChangeModify})
-				changedDirs[parent] = struct{}{}
-			}
-		}
-
-		// Record change
-		changes = append(changes, change)
-		return nil
-	})
-	if err != nil && !os.IsNotExist(err) {
-		return nil, err
-	}
-	return changes, nil
-}
-
-// FileInfo describes the information of a file.
-type FileInfo struct {
-	parent     *FileInfo
-	name       string
-	stat       *system.StatT
-	children   map[string]*FileInfo
-	capability []byte
-	added      bool
-}
-
-// LookUp looks up the file information of a file.
-func (info *FileInfo) LookUp(path string) *FileInfo {
-	// As this runs on the daemon side, file paths are OS specific.
-	parent := info
-	if path == string(os.PathSeparator) {
-		return info
-	}
-
-	pathElements := strings.Split(path, string(os.PathSeparator))
-	for _, elem := range pathElements {
-		if elem != "" {
-			child := parent.children[elem]
-			if child == nil {
-				return nil
-			}
-			parent = child
-		}
-	}
-	return parent
-}
-
-func (info *FileInfo) path() string {
-	if info.parent == nil {
-		// As this runs on the daemon side, file paths are OS specific.
-		return string(os.PathSeparator)
-	}
-	return filepath.Join(info.parent.path(), info.name)
-}
-
-func (info *FileInfo) addChanges(oldInfo *FileInfo, changes *[]Change) {
-
-	sizeAtEntry := len(*changes)
-
-	if oldInfo == nil {
-		// add
-		change := Change{
-			Path: info.path(),
-			Kind: ChangeAdd,
-		}
-		*changes = append(*changes, change)
-		info.added = true
-	}
-
-	// We make a copy so we can modify it to detect additions
-	// also, we only recurse on the old dir if the new info is a directory
-	// otherwise any previous delete/change is considered recursive
-	oldChildren := make(map[string]*FileInfo)
-	if oldInfo != nil && info.isDir() {
-		for k, v := range oldInfo.children {
-			oldChildren[k] = v
-		}
-	}
-
-	for name, newChild := range info.children {
-		oldChild, _ := oldChildren[name]
-		if oldChild != nil {
-			// change?
-			oldStat := oldChild.stat
-			newStat := newChild.stat
-			// Note: We can't compare inode or ctime or blocksize here, because these change
-			// when copying a file into a container. However, that is not generally a problem
-			// because any content change will change mtime, and any status change should
-			// be visible when actually comparing the stat fields. The only time this
-			// breaks down is if some code intentionally hides a change by setting
-			// back mtime
-			if statDifferent(oldStat, newStat) ||
-				bytes.Compare(oldChild.capability, newChild.capability) != 0 {
-				change := Change{
-					Path: newChild.path(),
-					Kind: ChangeModify,
-				}
-				*changes = append(*changes, change)
-				newChild.added = true
-			}
-
-			// Remove from copy so we can detect deletions
-			delete(oldChildren, name)
-		}
-
-		newChild.addChanges(oldChild, changes)
-	}
-	for _, oldChild := range oldChildren {
-		// delete
-		change := Change{
-			Path: oldChild.path(),
-			Kind: ChangeDelete,
-		}
-		*changes = append(*changes, change)
-	}
-
-	// If there were changes inside this directory, we need to add it, even if the directory
-	// itself wasn't changed. This is needed to properly save and restore filesystem permissions.
-	// As this runs on the daemon side, file paths are OS specific.
-	if len(*changes) > sizeAtEntry && info.isDir() && !info.added && info.path() != string(os.PathSeparator) {
-		change := Change{
-			Path: info.path(),
-			Kind: ChangeModify,
-		}
-		// Let's insert the directory entry before the recently added entries located inside this dir
-		*changes = append(*changes, change) // just to resize the slice, will be overwritten
-		copy((*changes)[sizeAtEntry+1:], (*changes)[sizeAtEntry:])
-		(*changes)[sizeAtEntry] = change
-	}
-
-}
-
-// Changes add changes to file information.
-func (info *FileInfo) Changes(oldInfo *FileInfo) []Change {
-	var changes []Change
-
-	info.addChanges(oldInfo, &changes)
-
-	return changes
-}
-
-func newRootFileInfo() *FileInfo {
-	// As this runs on the daemon side, file paths are OS specific.
-	root := &FileInfo{
-		name:     string(os.PathSeparator),
-		children: make(map[string]*FileInfo),
-	}
-	return root
-}
-
-// ChangesDirs compares two directories and generates an array of Change objects describing the changes.
-// If oldDir is "", then all files in newDir will be Add-Changes.
-func ChangesDirs(newDir, oldDir string) ([]Change, error) {
-	var (
-		oldRoot, newRoot *FileInfo
-	)
-	if oldDir == "" {
-		emptyDir, err := ioutil.TempDir("", "empty")
-		if err != nil {
-			return nil, err
-		}
-		defer os.Remove(emptyDir)
-		oldDir = emptyDir
-	}
-	oldRoot, newRoot, err := collectFileInfoForChanges(oldDir, newDir)
-	if err != nil {
-		return nil, err
-	}
-
-	return newRoot.Changes(oldRoot), nil
-}
-
-// ChangesSize calculates the size in bytes of the provided changes, based on newDir.
-func ChangesSize(newDir string, changes []Change) int64 {
-	var (
-		size int64
-		sf   = make(map[uint64]struct{})
-	)
-	for _, change := range changes {
-		if change.Kind == ChangeModify || change.Kind == ChangeAdd {
-			file := filepath.Join(newDir, change.Path)
-			fileInfo, err := os.Lstat(file)
-			if err != nil {
-				logrus.Errorf("Can not stat %q: %s", file, err)
-				continue
-			}
-
-			if fileInfo != nil && !fileInfo.IsDir() {
-				if hasHardlinks(fileInfo) {
-					inode := getIno(fileInfo)
-					if _, ok := sf[inode]; !ok {
-						size += fileInfo.Size()
-						sf[inode] = struct{}{}
-					}
-				} else {
-					size += fileInfo.Size()
-				}
-			}
-		}
-	}
-	return size
-}
-
-// ExportChanges produces an Archive from the provided changes, relative to dir.
-func ExportChanges(dir string, changes []Change, uidMaps, gidMaps []idtools.IDMap) (io.ReadCloser, error) {
-	reader, writer := io.Pipe()
-	go func() {
-		ta := &tarAppender{
-			TarWriter: tar.NewWriter(writer),
-			Buffer:    pools.BufioWriter32KPool.Get(nil),
-			SeenFiles: make(map[uint64]string),
-			UIDMaps:   uidMaps,
-			GIDMaps:   gidMaps,
-		}
-		// this buffer is needed for the duration of this piped stream
-		defer pools.BufioWriter32KPool.Put(ta.Buffer)
-
-		sort.Sort(changesByPath(changes))
-
-		// In general we log errors here but ignore them because
-		// during e.g. a diff operation the container can continue
-		// mutating the filesystem and we can see transient errors
-		// from this
-		for _, change := range changes {
-			if change.Kind == ChangeDelete {
-				whiteOutDir := filepath.Dir(change.Path)
-				whiteOutBase := filepath.Base(change.Path)
-				whiteOut := filepath.Join(whiteOutDir, WhiteoutPrefix+whiteOutBase)
-				timestamp := time.Now()
-				hdr := &tar.Header{
-					Name:       whiteOut[1:],
-					Size:       0,
-					ModTime:    timestamp,
-					AccessTime: timestamp,
-					ChangeTime: timestamp,
-				}
-				if err := ta.TarWriter.WriteHeader(hdr); err != nil {
-					logrus.Debugf("Can't write whiteout header: %s", err)
-				}
-			} else {
-				path := filepath.Join(dir, change.Path)
-				if err := ta.addTarFile(path, change.Path[1:]); err != nil {
-					logrus.Debugf("Can't add file %s to tar: %s", path, err)
-				}
-			}
-		}
-
-		// Make sure to check the error on Close.
-		if err := ta.TarWriter.Close(); err != nil {
-			logrus.Debugf("Can't close layer: %s", err)
-		}
-		if err := writer.Close(); err != nil {
-			logrus.Debugf("failed close Changes writer: %s", err)
-		}
-	}()
-	return reader, nil
-}

vendor/github.com/docker/docker/pkg/archive/changes_linux.go

@@ -1,312 +0,0 @@
-package archive
-
-import (
-	"bytes"
-	"fmt"
-	"os"
-	"path/filepath"
-	"sort"
-	"syscall"
-	"unsafe"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-// walker is used to implement collectFileInfoForChanges on linux. Where this
-// method in general returns the entire contents of two directory trees, we
-// optimize some FS calls out on linux. In particular, we take advantage of the
-// fact that getdents(2) returns the inode of each file in the directory being
-// walked, which, when walking two trees in parallel to generate a list of
-// changes, can be used to prune subtrees without ever having to lstat(2) them
-// directly. Eliminating stat calls in this way can save up to seconds on large
-// images.
-type walker struct {
-	dir1  string
-	dir2  string
-	root1 *FileInfo
-	root2 *FileInfo
-}
-
-// collectFileInfoForChanges returns a complete representation of the trees
-// rooted at dir1 and dir2, with one important exception: any subtree or
-// leaf where the inode and device numbers are an exact match between dir1
-// and dir2 will be pruned from the results. This method is *only* to be used
-// to generating a list of changes between the two directories, as it does not
-// reflect the full contents.
-func collectFileInfoForChanges(dir1, dir2 string) (*FileInfo, *FileInfo, error) {
-	w := &walker{
-		dir1:  dir1,
-		dir2:  dir2,
-		root1: newRootFileInfo(),
-		root2: newRootFileInfo(),
-	}
-
-	i1, err := os.Lstat(w.dir1)
-	if err != nil {
-		return nil, nil, err
-	}
-	i2, err := os.Lstat(w.dir2)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if err := w.walk("/", i1, i2); err != nil {
-		return nil, nil, err
-	}
-
-	return w.root1, w.root2, nil
-}
-
-// Given a FileInfo, its path info, and a reference to the root of the tree
-// being constructed, register this file with the tree.
-func walkchunk(path string, fi os.FileInfo, dir string, root *FileInfo) error {
-	if fi == nil {
-		return nil
-	}
-	parent := root.LookUp(filepath.Dir(path))
-	if parent == nil {
-		return fmt.Errorf("collectFileInfoForChanges: Unexpectedly no parent for %s", path)
-	}
-	info := &FileInfo{
-		name:     filepath.Base(path),
-		children: make(map[string]*FileInfo),
-		parent:   parent,
-	}
-	cpath := filepath.Join(dir, path)
-	stat, err := system.FromStatT(fi.Sys().(*syscall.Stat_t))
-	if err != nil {
-		return err
-	}
-	info.stat = stat
-	info.capability, _ = system.Lgetxattr(cpath, "security.capability") // lgetxattr(2): fs access
-	parent.children[info.name] = info
-	return nil
-}
-
-// Walk a subtree rooted at the same path in both trees being iterated. For
-// example, /docker/overlay/1234/a/b/c/d and /docker/overlay/8888/a/b/c/d
-func (w *walker) walk(path string, i1, i2 os.FileInfo) (err error) {
-	// Register these nodes with the return trees, unless we're still at the
-	// (already-created) roots:
-	if path != "/" {
-		if err := walkchunk(path, i1, w.dir1, w.root1); err != nil {
-			return err
-		}
-		if err := walkchunk(path, i2, w.dir2, w.root2); err != nil {
-			return err
-		}
-	}
-
-	is1Dir := i1 != nil && i1.IsDir()
-	is2Dir := i2 != nil && i2.IsDir()
-
-	sameDevice := false
-	if i1 != nil && i2 != nil {
-		si1 := i1.Sys().(*syscall.Stat_t)
-		si2 := i2.Sys().(*syscall.Stat_t)
-		if si1.Dev == si2.Dev {
-			sameDevice = true
-		}
-	}
-
-	// If these files are both non-existent, or leaves (non-dirs), we are done.
-	if !is1Dir && !is2Dir {
-		return nil
-	}
-
-	// Fetch the names of all the files contained in both directories being walked:
-	var names1, names2 []nameIno
-	if is1Dir {
-		names1, err = readdirnames(filepath.Join(w.dir1, path)) // getdents(2): fs access
-		if err != nil {
-			return err
-		}
-	}
-	if is2Dir {
-		names2, err = readdirnames(filepath.Join(w.dir2, path)) // getdents(2): fs access
-		if err != nil {
-			return err
-		}
-	}
-
-	// We have lists of the files contained in both parallel directories, sorted
-	// in the same order. Walk them in parallel, generating a unique merged list
-	// of all items present in either or both directories.
-	var names []string
-	ix1 := 0
-	ix2 := 0
-
-	for {
-		if ix1 >= len(names1) {
-			break
-		}
-		if ix2 >= len(names2) {
-			break
-		}
-
-		ni1 := names1[ix1]
-		ni2 := names2[ix2]
-
-		switch bytes.Compare([]byte(ni1.name), []byte(ni2.name)) {
-		case -1: // ni1 < ni2 -- advance ni1
-			// we will not encounter ni1 in names2
-			names = append(names, ni1.name)
-			ix1++
-		case 0: // ni1 == ni2
-			if ni1.ino != ni2.ino || !sameDevice {
-				names = append(names, ni1.name)
-			}
-			ix1++
-			ix2++
-		case 1: // ni1 > ni2 -- advance ni2
-			// we will not encounter ni2 in names1
-			names = append(names, ni2.name)
-			ix2++
-		}
-	}
-	for ix1 < len(names1) {
-		names = append(names, names1[ix1].name)
-		ix1++
-	}
-	for ix2 < len(names2) {
-		names = append(names, names2[ix2].name)
-		ix2++
-	}
-
-	// For each of the names present in either or both of the directories being
-	// iterated, stat the name under each root, and recurse the pair of them:
-	for _, name := range names {
-		fname := filepath.Join(path, name)
-		var cInfo1, cInfo2 os.FileInfo
-		if is1Dir {
-			cInfo1, err = os.Lstat(filepath.Join(w.dir1, fname)) // lstat(2): fs access
-			if err != nil && !os.IsNotExist(err) {
-				return err
-			}
-		}
-		if is2Dir {
-			cInfo2, err = os.Lstat(filepath.Join(w.dir2, fname)) // lstat(2): fs access
-			if err != nil && !os.IsNotExist(err) {
-				return err
-			}
-		}
-		if err = w.walk(fname, cInfo1, cInfo2); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// {name,inode} pairs used to support the early-pruning logic of the walker type
-type nameIno struct {
-	name string
-	ino  uint64
-}
-
-type nameInoSlice []nameIno
-
-func (s nameInoSlice) Len() int           { return len(s) }
-func (s nameInoSlice) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-func (s nameInoSlice) Less(i, j int) bool { return s[i].name < s[j].name }
-
-// readdirnames is a hacked-apart version of the Go stdlib code, exposing inode
-// numbers further up the stack when reading directory contents. Unlike
-// os.Readdirnames, which returns a list of filenames, this function returns a
-// list of {filename,inode} pairs.
-func readdirnames(dirname string) (names []nameIno, err error) {
-	var (
-		size = 100
-		buf  = make([]byte, 4096)
-		nbuf int
-		bufp int
-		nb   int
-	)
-
-	f, err := os.Open(dirname)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	names = make([]nameIno, 0, size) // Empty with room to grow.
-	for {
-		// Refill the buffer if necessary
-		if bufp >= nbuf {
-			bufp = 0
-			nbuf, err = syscall.ReadDirent(int(f.Fd()), buf) // getdents on linux
-			if nbuf < 0 {
-				nbuf = 0
-			}
-			if err != nil {
-				return nil, os.NewSyscallError("readdirent", err)
-			}
-			if nbuf <= 0 {
-				break // EOF
-			}
-		}
-
-		// Drain the buffer
-		nb, names = parseDirent(buf[bufp:nbuf], names)
-		bufp += nb
-	}
-
-	sl := nameInoSlice(names)
-	sort.Sort(sl)
-	return sl, nil
-}
-
-// parseDirent is a minor modification of syscall.ParseDirent (linux version)
-// which returns {name,inode} pairs instead of just names.
-func parseDirent(buf []byte, names []nameIno) (consumed int, newnames []nameIno) {
-	origlen := len(buf)
-	for len(buf) > 0 {
-		dirent := (*syscall.Dirent)(unsafe.Pointer(&buf[0]))
-		buf = buf[dirent.Reclen:]
-		if dirent.Ino == 0 { // File absent in directory.
-			continue
-		}
-		bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
-		var name = string(bytes[0:clen(bytes[:])])
-		if name == "." || name == ".." { // Useless names
-			continue
-		}
-		names = append(names, nameIno{name, dirent.Ino})
-	}
-	return origlen - len(buf), names
-}
-
-func clen(n []byte) int {
-	for i := 0; i < len(n); i++ {
-		if n[i] == 0 {
-			return i
-		}
-	}
-	return len(n)
-}
-
-// OverlayChanges walks the path rw and determines changes for the files in the path,
-// with respect to the parent layers
-func OverlayChanges(layers []string, rw string) ([]Change, error) {
-	return changes(layers, rw, overlayDeletedFile, nil)
-}
-
-func overlayDeletedFile(root, path string, fi os.FileInfo) (string, error) {
-	if fi.Mode()&os.ModeCharDevice != 0 {
-		s := fi.Sys().(*syscall.Stat_t)
-		if major(uint64(s.Rdev)) == 0 && minor(uint64(s.Rdev)) == 0 {
-			return path, nil
-		}
-	}
-	if fi.Mode()&os.ModeDir != 0 {
-		opaque, err := system.Lgetxattr(filepath.Join(root, path), "trusted.overlay.opaque")
-		if err != nil {
-			return "", err
-		}
-		if len(opaque) == 1 && opaque[0] == 'y' {
-			return path, nil
-		}
-	}
-
-	return "", nil
-
-}

vendor/github.com/docker/docker/pkg/archive/changes_other.go

@@ -1,97 +0,0 @@
-// +build !linux
-
-package archive
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strings"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-func collectFileInfoForChanges(oldDir, newDir string) (*FileInfo, *FileInfo, error) {
-	var (
-		oldRoot, newRoot *FileInfo
-		err1, err2       error
-		errs             = make(chan error, 2)
-	)
-	go func() {
-		oldRoot, err1 = collectFileInfo(oldDir)
-		errs <- err1
-	}()
-	go func() {
-		newRoot, err2 = collectFileInfo(newDir)
-		errs <- err2
-	}()
-
-	// block until both routines have returned
-	for i := 0; i < 2; i++ {
-		if err := <-errs; err != nil {
-			return nil, nil, err
-		}
-	}
-
-	return oldRoot, newRoot, nil
-}
-
-func collectFileInfo(sourceDir string) (*FileInfo, error) {
-	root := newRootFileInfo()
-
-	err := filepath.Walk(sourceDir, func(path string, f os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		// Rebase path
-		relPath, err := filepath.Rel(sourceDir, path)
-		if err != nil {
-			return err
-		}
-
-		// As this runs on the daemon side, file paths are OS specific.
-		relPath = filepath.Join(string(os.PathSeparator), relPath)
-
-		// See https://github.com/golang/go/issues/9168 - bug in filepath.Join.
-		// Temporary workaround. If the returned path starts with two backslashes,
-		// trim it down to a single backslash. Only relevant on Windows.
-		if runtime.GOOS == "windows" {
-			if strings.HasPrefix(relPath, `\\`) {
-				relPath = relPath[1:]
-			}
-		}
-
-		if relPath == string(os.PathSeparator) {
-			return nil
-		}
-
-		parent := root.LookUp(filepath.Dir(relPath))
-		if parent == nil {
-			return fmt.Errorf("collectFileInfo: Unexpectedly no parent for %s", relPath)
-		}
-
-		info := &FileInfo{
-			name:     filepath.Base(relPath),
-			children: make(map[string]*FileInfo),
-			parent:   parent,
-		}
-
-		s, err := system.Lstat(path)
-		if err != nil {
-			return err
-		}
-		info.stat = s
-
-		info.capability, _ = system.Lgetxattr(path, "security.capability")
-
-		parent.children[info.name] = info
-
-		return nil
-	})
-	if err != nil {
-		return nil, err
-	}
-	return root, nil
-}

vendor/github.com/docker/docker/pkg/archive/changes_unix.go

@@ -1,36 +0,0 @@
-// +build !windows
-
-package archive
-
-import (
-	"os"
-	"syscall"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-func statDifferent(oldStat *system.StatT, newStat *system.StatT) bool {
-	// Don't look at size for dirs, its not a good measure of change
-	if oldStat.Mode() != newStat.Mode() ||
-		oldStat.UID() != newStat.UID() ||
-		oldStat.GID() != newStat.GID() ||
-		oldStat.Rdev() != newStat.Rdev() ||
-		// Don't look at size for dirs, its not a good measure of change
-		(oldStat.Mode()&syscall.S_IFDIR != syscall.S_IFDIR &&
-			(!sameFsTimeSpec(oldStat.Mtim(), newStat.Mtim()) || (oldStat.Size() != newStat.Size()))) {
-		return true
-	}
-	return false
-}
-
-func (info *FileInfo) isDir() bool {
-	return info.parent == nil || info.stat.Mode()&syscall.S_IFDIR != 0
-}
-
-func getIno(fi os.FileInfo) uint64 {
-	return uint64(fi.Sys().(*syscall.Stat_t).Ino)
-}
-
-func hasHardlinks(fi os.FileInfo) bool {
-	return fi.Sys().(*syscall.Stat_t).Nlink > 1
-}

vendor/github.com/docker/docker/pkg/archive/changes_windows.go

@@ -1,30 +0,0 @@
-package archive
-
-import (
-	"os"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-func statDifferent(oldStat *system.StatT, newStat *system.StatT) bool {
-
-	// Don't look at size for dirs, its not a good measure of change
-	if oldStat.ModTime() != newStat.ModTime() ||
-		oldStat.Mode() != newStat.Mode() ||
-		oldStat.Size() != newStat.Size() && !oldStat.IsDir() {
-		return true
-	}
-	return false
-}
-
-func (info *FileInfo) isDir() bool {
-	return info.parent == nil || info.stat.IsDir()
-}
-
-func getIno(fi os.FileInfo) (inode uint64) {
-	return
-}
-
-func hasHardlinks(fi os.FileInfo) bool {
-	return false
-}

vendor/github.com/docker/docker/pkg/archive/copy.go

@@ -1,458 +0,0 @@
-package archive
-
-import (
-	"archive/tar"
-	"errors"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/Sirupsen/logrus"
-	"github.com/docker/docker/pkg/system"
-)
-
-// Errors used or returned by this file.
-var (
-	ErrNotDirectory      = errors.New("not a directory")
-	ErrDirNotExists      = errors.New("no such directory")
-	ErrCannotCopyDir     = errors.New("cannot copy directory")
-	ErrInvalidCopySource = errors.New("invalid copy source content")
-)
-
-// PreserveTrailingDotOrSeparator returns the given cleaned path (after
-// processing using any utility functions from the path or filepath stdlib
-// packages) and appends a trailing `/.` or `/` if its corresponding  original
-// path (from before being processed by utility functions from the path or
-// filepath stdlib packages) ends with a trailing `/.` or `/`. If the cleaned
-// path already ends in a `.` path segment, then another is not added. If the
-// clean path already ends in a path separator, then another is not added.
-func PreserveTrailingDotOrSeparator(cleanedPath, originalPath string) string {
-	// Ensure paths are in platform semantics
-	cleanedPath = normalizePath(cleanedPath)
-	originalPath = normalizePath(originalPath)
-
-	if !specifiesCurrentDir(cleanedPath) && specifiesCurrentDir(originalPath) {
-		if !hasTrailingPathSeparator(cleanedPath) {
-			// Add a separator if it doesn't already end with one (a cleaned
-			// path would only end in a separator if it is the root).
-			cleanedPath += string(filepath.Separator)
-		}
-		cleanedPath += "."
-	}
-
-	if !hasTrailingPathSeparator(cleanedPath) && hasTrailingPathSeparator(originalPath) {
-		cleanedPath += string(filepath.Separator)
-	}
-
-	return cleanedPath
-}
-
-// assertsDirectory returns whether the given path is
-// asserted to be a directory, i.e., the path ends with
-// a trailing '/' or `/.`, assuming a path separator of `/`.
-func assertsDirectory(path string) bool {
-	return hasTrailingPathSeparator(path) || specifiesCurrentDir(path)
-}
-
-// hasTrailingPathSeparator returns whether the given
-// path ends with the system's path separator character.
-func hasTrailingPathSeparator(path string) bool {
-	return len(path) > 0 && os.IsPathSeparator(path[len(path)-1])
-}
-
-// specifiesCurrentDir returns whether the given path specifies
-// a "current directory", i.e., the last path segment is `.`.
-func specifiesCurrentDir(path string) bool {
-	return filepath.Base(path) == "."
-}
-
-// SplitPathDirEntry splits the given path between its directory name and its
-// basename by first cleaning the path but preserves a trailing "." if the
-// original path specified the current directory.
-func SplitPathDirEntry(path string) (dir, base string) {
-	cleanedPath := filepath.Clean(normalizePath(path))
-
-	if specifiesCurrentDir(path) {
-		cleanedPath += string(filepath.Separator) + "."
-	}
-
-	return filepath.Dir(cleanedPath), filepath.Base(cleanedPath)
-}
-
-// TarResource archives the resource described by the given CopyInfo to a Tar
-// archive. A non-nil error is returned if sourcePath does not exist or is
-// asserted to be a directory but exists as another type of file.
-//
-// This function acts as a convenient wrapper around TarWithOptions, which
-// requires a directory as the source path. TarResource accepts either a
-// directory or a file path and correctly sets the Tar options.
-func TarResource(sourceInfo CopyInfo) (content io.ReadCloser, err error) {
-	return TarResourceRebase(sourceInfo.Path, sourceInfo.RebaseName)
-}
-
-// TarResourceRebase is like TarResource but renames the first path element of
-// items in the resulting tar archive to match the given rebaseName if not "".
-func TarResourceRebase(sourcePath, rebaseName string) (content io.ReadCloser, err error) {
-	sourcePath = normalizePath(sourcePath)
-	if _, err = os.Lstat(sourcePath); err != nil {
-		// Catches the case where the source does not exist or is not a
-		// directory if asserted to be a directory, as this also causes an
-		// error.
-		return
-	}
-
-	// Separate the source path between its directory and
-	// the entry in that directory which we are archiving.
-	sourceDir, sourceBase := SplitPathDirEntry(sourcePath)
-
-	filter := []string{sourceBase}
-
-	logrus.Debugf("copying %q from %q", sourceBase, sourceDir)
-
-	return TarWithOptions(sourceDir, &TarOptions{
-		Compression:      Uncompressed,
-		IncludeFiles:     filter,
-		IncludeSourceDir: true,
-		RebaseNames: map[string]string{
-			sourceBase: rebaseName,
-		},
-	})
-}
-
-// CopyInfo holds basic info about the source
-// or destination path of a copy operation.
-type CopyInfo struct {
-	Path       string
-	Exists     bool
-	IsDir      bool
-	RebaseName string
-}
-
-// CopyInfoSourcePath stats the given path to create a CopyInfo
-// struct representing that resource for the source of an archive copy
-// operation. The given path should be an absolute local path. A source path
-// has all symlinks evaluated that appear before the last path separator ("/"
-// on Unix). As it is to be a copy source, the path must exist.
-func CopyInfoSourcePath(path string, followLink bool) (CopyInfo, error) {
-	// normalize the file path and then evaluate the symbol link
-	// we will use the target file instead of the symbol link if
-	// followLink is set
-	path = normalizePath(path)
-
-	resolvedPath, rebaseName, err := ResolveHostSourcePath(path, followLink)
-	if err != nil {
-		return CopyInfo{}, err
-	}
-
-	stat, err := os.Lstat(resolvedPath)
-	if err != nil {
-		return CopyInfo{}, err
-	}
-
-	return CopyInfo{
-		Path:       resolvedPath,
-		Exists:     true,
-		IsDir:      stat.IsDir(),
-		RebaseName: rebaseName,
-	}, nil
-}
-
-// CopyInfoDestinationPath stats the given path to create a CopyInfo
-// struct representing that resource for the destination of an archive copy
-// operation. The given path should be an absolute local path.
-func CopyInfoDestinationPath(path string) (info CopyInfo, err error) {
-	maxSymlinkIter := 10 // filepath.EvalSymlinks uses 255, but 10 already seems like a lot.
-	path = normalizePath(path)
-	originalPath := path
-
-	stat, err := os.Lstat(path)
-
-	if err == nil && stat.Mode()&os.ModeSymlink == 0 {
-		// The path exists and is not a symlink.
-		return CopyInfo{
-			Path:   path,
-			Exists: true,
-			IsDir:  stat.IsDir(),
-		}, nil
-	}
-
-	// While the path is a symlink.
-	for n := 0; err == nil && stat.Mode()&os.ModeSymlink != 0; n++ {
-		if n > maxSymlinkIter {
-			// Don't follow symlinks more than this arbitrary number of times.
-			return CopyInfo{}, errors.New("too many symlinks in " + originalPath)
-		}
-
-		// The path is a symbolic link. We need to evaluate it so that the
-		// destination of the copy operation is the link target and not the
-		// link itself. This is notably different than CopyInfoSourcePath which
-		// only evaluates symlinks before the last appearing path separator.
-		// Also note that it is okay if the last path element is a broken
-		// symlink as the copy operation should create the target.
-		var linkTarget string
-
-		linkTarget, err = os.Readlink(path)
-		if err != nil {
-			return CopyInfo{}, err
-		}
-
-		if !system.IsAbs(linkTarget) {
-			// Join with the parent directory.
-			dstParent, _ := SplitPathDirEntry(path)
-			linkTarget = filepath.Join(dstParent, linkTarget)
-		}
-
-		path = linkTarget
-		stat, err = os.Lstat(path)
-	}
-
-	if err != nil {
-		// It's okay if the destination path doesn't exist. We can still
-		// continue the copy operation if the parent directory exists.
-		if !os.IsNotExist(err) {
-			return CopyInfo{}, err
-		}
-
-		// Ensure destination parent dir exists.
-		dstParent, _ := SplitPathDirEntry(path)
-
-		parentDirStat, err := os.Lstat(dstParent)
-		if err != nil {
-			return CopyInfo{}, err
-		}
-		if !parentDirStat.IsDir() {
-			return CopyInfo{}, ErrNotDirectory
-		}
-
-		return CopyInfo{Path: path}, nil
-	}
-
-	// The path exists after resolving symlinks.
-	return CopyInfo{
-		Path:   path,
-		Exists: true,
-		IsDir:  stat.IsDir(),
-	}, nil
-}
-
-// PrepareArchiveCopy prepares the given srcContent archive, which should
-// contain the archived resource described by srcInfo, to the destination
-// described by dstInfo. Returns the possibly modified content archive along
-// with the path to the destination directory which it should be extracted to.
-func PrepareArchiveCopy(srcContent io.Reader, srcInfo, dstInfo CopyInfo) (dstDir string, content io.ReadCloser, err error) {
-	// Ensure in platform semantics
-	srcInfo.Path = normalizePath(srcInfo.Path)
-	dstInfo.Path = normalizePath(dstInfo.Path)
-
-	// Separate the destination path between its directory and base
-	// components in case the source archive contents need to be rebased.
-	dstDir, dstBase := SplitPathDirEntry(dstInfo.Path)
-	_, srcBase := SplitPathDirEntry(srcInfo.Path)
-
-	switch {
-	case dstInfo.Exists && dstInfo.IsDir:
-		// The destination exists as a directory. No alteration
-		// to srcContent is needed as its contents can be
-		// simply extracted to the destination directory.
-		return dstInfo.Path, ioutil.NopCloser(srcContent), nil
-	case dstInfo.Exists && srcInfo.IsDir:
-		// The destination exists as some type of file and the source
-		// content is a directory. This is an error condition since
-		// you cannot copy a directory to an existing file location.
-		return "", nil, ErrCannotCopyDir
-	case dstInfo.Exists:
-		// The destination exists as some type of file and the source content
-		// is also a file. The source content entry will have to be renamed to
-		// have a basename which matches the destination path's basename.
-		if len(srcInfo.RebaseName) != 0 {
-			srcBase = srcInfo.RebaseName
-		}
-		return dstDir, RebaseArchiveEntries(srcContent, srcBase, dstBase), nil
-	case srcInfo.IsDir:
-		// The destination does not exist and the source content is an archive
-		// of a directory. The archive should be extracted to the parent of
-		// the destination path instead, and when it is, the directory that is
-		// created as a result should take the name of the destination path.
-		// The source content entries will have to be renamed to have a
-		// basename which matches the destination path's basename.
-		if len(srcInfo.RebaseName) != 0 {
-			srcBase = srcInfo.RebaseName
-		}
-		return dstDir, RebaseArchiveEntries(srcContent, srcBase, dstBase), nil
-	case assertsDirectory(dstInfo.Path):
-		// The destination does not exist and is asserted to be created as a
-		// directory, but the source content is not a directory. This is an
-		// error condition since you cannot create a directory from a file
-		// source.
-		return "", nil, ErrDirNotExists
-	default:
-		// The last remaining case is when the destination does not exist, is
-		// not asserted to be a directory, and the source content is not an
-		// archive of a directory. It this case, the destination file will need
-		// to be created when the archive is extracted and the source content
-		// entry will have to be renamed to have a basename which matches the
-		// destination path's basename.
-		if len(srcInfo.RebaseName) != 0 {
-			srcBase = srcInfo.RebaseName
-		}
-		return dstDir, RebaseArchiveEntries(srcContent, srcBase, dstBase), nil
-	}
-
-}
-
-// RebaseArchiveEntries rewrites the given srcContent archive replacing
-// an occurrence of oldBase with newBase at the beginning of entry names.
-func RebaseArchiveEntries(srcContent io.Reader, oldBase, newBase string) io.ReadCloser {
-	if oldBase == string(os.PathSeparator) {
-		// If oldBase specifies the root directory, use an empty string as
-		// oldBase instead so that newBase doesn't replace the path separator
-		// that all paths will start with.
-		oldBase = ""
-	}
-
-	rebased, w := io.Pipe()
-
-	go func() {
-		srcTar := tar.NewReader(srcContent)
-		rebasedTar := tar.NewWriter(w)
-
-		for {
-			hdr, err := srcTar.Next()
-			if err == io.EOF {
-				// Signals end of archive.
-				rebasedTar.Close()
-				w.Close()
-				return
-			}
-			if err != nil {
-				w.CloseWithError(err)
-				return
-			}
-
-			hdr.Name = strings.Replace(hdr.Name, oldBase, newBase, 1)
-
-			if err = rebasedTar.WriteHeader(hdr); err != nil {
-				w.CloseWithError(err)
-				return
-			}
-
-			if _, err = io.Copy(rebasedTar, srcTar); err != nil {
-				w.CloseWithError(err)
-				return
-			}
-		}
-	}()
-
-	return rebased
-}
-
-// CopyResource performs an archive copy from the given source path to the
-// given destination path. The source path MUST exist and the destination
-// path's parent directory must exist.
-func CopyResource(srcPath, dstPath string, followLink bool) error {
-	var (
-		srcInfo CopyInfo
-		err     error
-	)
-
-	// Ensure in platform semantics
-	srcPath = normalizePath(srcPath)
-	dstPath = normalizePath(dstPath)
-
-	// Clean the source and destination paths.
-	srcPath = PreserveTrailingDotOrSeparator(filepath.Clean(srcPath), srcPath)
-	dstPath = PreserveTrailingDotOrSeparator(filepath.Clean(dstPath), dstPath)
-
-	if srcInfo, err = CopyInfoSourcePath(srcPath, followLink); err != nil {
-		return err
-	}
-
-	content, err := TarResource(srcInfo)
-	if err != nil {
-		return err
-	}
-	defer content.Close()
-
-	return CopyTo(content, srcInfo, dstPath)
-}
-
-// CopyTo handles extracting the given content whose
-// entries should be sourced from srcInfo to dstPath.
-func CopyTo(content io.Reader, srcInfo CopyInfo, dstPath string) error {
-	// The destination path need not exist, but CopyInfoDestinationPath will
-	// ensure that at least the parent directory exists.
-	dstInfo, err := CopyInfoDestinationPath(normalizePath(dstPath))
-	if err != nil {
-		return err
-	}
-
-	dstDir, copyArchive, err := PrepareArchiveCopy(content, srcInfo, dstInfo)
-	if err != nil {
-		return err
-	}
-	defer copyArchive.Close()
-
-	options := &TarOptions{
-		NoLchown:             true,
-		NoOverwriteDirNonDir: true,
-	}
-
-	return Untar(copyArchive, dstDir, options)
-}
-
-// ResolveHostSourcePath decides real path need to be copied with parameters such as
-// whether to follow symbol link or not, if followLink is true, resolvedPath will return
-// link target of any symbol link file, else it will only resolve symlink of directory
-// but return symbol link file itself without resolving.
-func ResolveHostSourcePath(path string, followLink bool) (resolvedPath, rebaseName string, err error) {
-	if followLink {
-		resolvedPath, err = filepath.EvalSymlinks(path)
-		if err != nil {
-			return
-		}
-
-		resolvedPath, rebaseName = GetRebaseName(path, resolvedPath)
-	} else {
-		dirPath, basePath := filepath.Split(path)
-
-		// if not follow symbol link, then resolve symbol link of parent dir
-		var resolvedDirPath string
-		resolvedDirPath, err = filepath.EvalSymlinks(dirPath)
-		if err != nil {
-			return
-		}
-		// resolvedDirPath will have been cleaned (no trailing path separators) so
-		// we can manually join it with the base path element.
-		resolvedPath = resolvedDirPath + string(filepath.Separator) + basePath
-		if hasTrailingPathSeparator(path) && filepath.Base(path) != filepath.Base(resolvedPath) {
-			rebaseName = filepath.Base(path)
-		}
-	}
-	return resolvedPath, rebaseName, nil
-}
-
-// GetRebaseName normalizes and compares path and resolvedPath,
-// return completed resolved path and rebased file name
-func GetRebaseName(path, resolvedPath string) (string, string) {
-	// linkTarget will have been cleaned (no trailing path separators and dot) so
-	// we can manually join it with them
-	var rebaseName string
-	if specifiesCurrentDir(path) && !specifiesCurrentDir(resolvedPath) {
-		resolvedPath += string(filepath.Separator) + "."
-	}
-
-	if hasTrailingPathSeparator(path) && !hasTrailingPathSeparator(resolvedPath) {
-		resolvedPath += string(filepath.Separator)
-	}
-
-	if filepath.Base(path) != filepath.Base(resolvedPath) {
-		// In the case where the path had a trailing separator and a symlink
-		// evaluation has changed the last path component, we will need to
-		// rebase the name in the archive that is being copied to match the
-		// originally requested name.
-		rebaseName = filepath.Base(path)
-	}
-	return resolvedPath, rebaseName
-}

vendor/github.com/docker/docker/pkg/archive/copy_unix.go

@@ -1,11 +0,0 @@
-// +build !windows
-
-package archive
-
-import (
-	"path/filepath"
-)
-
-func normalizePath(path string) string {
-	return filepath.ToSlash(path)
-}

vendor/github.com/docker/docker/pkg/archive/copy_windows.go

@@ -1,9 +0,0 @@
-package archive
-
-import (
-	"path/filepath"
-)
-
-func normalizePath(path string) string {
-	return filepath.FromSlash(path)
-}

vendor/github.com/docker/docker/pkg/archive/diff.go

@@ -1,279 +0,0 @@
-package archive
-
-import (
-	"archive/tar"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strings"
-
-	"github.com/Sirupsen/logrus"
-	"github.com/docker/docker/pkg/idtools"
-	"github.com/docker/docker/pkg/pools"
-	"github.com/docker/docker/pkg/system"
-)
-
-// UnpackLayer unpack `layer` to a `dest`. The stream `layer` can be
-// compressed or uncompressed.
-// Returns the size in bytes of the contents of the layer.
-func UnpackLayer(dest string, layer io.Reader, options *TarOptions) (size int64, err error) {
-	tr := tar.NewReader(layer)
-	trBuf := pools.BufioReader32KPool.Get(tr)
-	defer pools.BufioReader32KPool.Put(trBuf)
-
-	var dirs []*tar.Header
-	unpackedPaths := make(map[string]struct{})
-
-	if options == nil {
-		options = &TarOptions{}
-	}
-	if options.ExcludePatterns == nil {
-		options.ExcludePatterns = []string{}
-	}
-	remappedRootUID, remappedRootGID, err := idtools.GetRootUIDGID(options.UIDMaps, options.GIDMaps)
-	if err != nil {
-		return 0, err
-	}
-
-	aufsTempdir := ""
-	aufsHardlinks := make(map[string]*tar.Header)
-
-	if options == nil {
-		options = &TarOptions{}
-	}
-	// Iterate through the files in the archive.
-	for {
-		hdr, err := tr.Next()
-		if err == io.EOF {
-			// end of tar archive
-			break
-		}
-		if err != nil {
-			return 0, err
-		}
-
-		size += hdr.Size
-
-		// Normalize name, for safety and for a simple is-root check
-		hdr.Name = filepath.Clean(hdr.Name)
-
-		// Windows does not support filenames with colons in them. Ignore
-		// these files. This is not a problem though (although it might
-		// appear that it is). Let's suppose a client is running docker pull.
-		// The daemon it points to is Windows. Would it make sense for the
-		// client to be doing a docker pull Ubuntu for example (which has files
-		// with colons in the name under /usr/share/man/man3)? No, absolutely
-		// not as it would really only make sense that they were pulling a
-		// Windows image. However, for development, it is necessary to be able
-		// to pull Linux images which are in the repository.
-		//
-		// TODO Windows. Once the registry is aware of what images are Windows-
-		// specific or Linux-specific, this warning should be changed to an error
-		// to cater for the situation where someone does manage to upload a Linux
-		// image but have it tagged as Windows inadvertently.
-		if runtime.GOOS == "windows" {
-			if strings.Contains(hdr.Name, ":") {
-				logrus.Warnf("Windows: Ignoring %s (is this a Linux image?)", hdr.Name)
-				continue
-			}
-		}
-
-		// Note as these operations are platform specific, so must the slash be.
-		if !strings.HasSuffix(hdr.Name, string(os.PathSeparator)) {
-			// Not the root directory, ensure that the parent directory exists.
-			// This happened in some tests where an image had a tarfile without any
-			// parent directories.
-			parent := filepath.Dir(hdr.Name)
-			parentPath := filepath.Join(dest, parent)
-
-			if _, err := os.Lstat(parentPath); err != nil && os.IsNotExist(err) {
-				err = system.MkdirAll(parentPath, 0600)
-				if err != nil {
-					return 0, err
-				}
-			}
-		}
-
-		// Skip AUFS metadata dirs
-		if strings.HasPrefix(hdr.Name, WhiteoutMetaPrefix) {
-			// Regular files inside /.wh..wh.plnk can be used as hardlink targets
-			// We don't want this directory, but we need the files in them so that
-			// such hardlinks can be resolved.
-			if strings.HasPrefix(hdr.Name, WhiteoutLinkDir) && hdr.Typeflag == tar.TypeReg {
-				basename := filepath.Base(hdr.Name)
-				aufsHardlinks[basename] = hdr
-				if aufsTempdir == "" {
-					if aufsTempdir, err = ioutil.TempDir("", "dockerplnk"); err != nil {
-						return 0, err
-					}
-					defer os.RemoveAll(aufsTempdir)
-				}
-				if err := createTarFile(filepath.Join(aufsTempdir, basename), dest, hdr, tr, true, nil, options.InUserNS); err != nil {
-					return 0, err
-				}
-			}
-
-			if hdr.Name != WhiteoutOpaqueDir {
-				continue
-			}
-		}
-		path := filepath.Join(dest, hdr.Name)
-		rel, err := filepath.Rel(dest, path)
-		if err != nil {
-			return 0, err
-		}
-
-		// Note as these operations are platform specific, so must the slash be.
-		if strings.HasPrefix(rel, ".."+string(os.PathSeparator)) {
-			return 0, breakoutError(fmt.Errorf("%q is outside of %q", hdr.Name, dest))
-		}
-		base := filepath.Base(path)
-
-		if strings.HasPrefix(base, WhiteoutPrefix) {
-			dir := filepath.Dir(path)
-			if base == WhiteoutOpaqueDir {
-				_, err := os.Lstat(dir)
-				if err != nil {
-					return 0, err
-				}
-				err = filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-					if err != nil {
-						if os.IsNotExist(err) {
-							err = nil // parent was deleted
-						}
-						return err
-					}
-					if path == dir {
-						return nil
-					}
-					if _, exists := unpackedPaths[path]; !exists {
-						err := os.RemoveAll(path)
-						return err
-					}
-					return nil
-				})
-				if err != nil {
-					return 0, err
-				}
-			} else {
-				originalBase := base[len(WhiteoutPrefix):]
-				originalPath := filepath.Join(dir, originalBase)
-				if err := os.RemoveAll(originalPath); err != nil {
-					return 0, err
-				}
-			}
-		} else {
-			// If path exits we almost always just want to remove and replace it.
-			// The only exception is when it is a directory *and* the file from
-			// the layer is also a directory. Then we want to merge them (i.e.
-			// just apply the metadata from the layer).
-			if fi, err := os.Lstat(path); err == nil {
-				if !(fi.IsDir() && hdr.Typeflag == tar.TypeDir) {
-					if err := os.RemoveAll(path); err != nil {
-						return 0, err
-					}
-				}
-			}
-
-			trBuf.Reset(tr)
-			srcData := io.Reader(trBuf)
-			srcHdr := hdr
-
-			// Hard links into /.wh..wh.plnk don't work, as we don't extract that directory, so
-			// we manually retarget these into the temporary files we extracted them into
-			if hdr.Typeflag == tar.TypeLink && strings.HasPrefix(filepath.Clean(hdr.Linkname), WhiteoutLinkDir) {
-				linkBasename := filepath.Base(hdr.Linkname)
-				srcHdr = aufsHardlinks[linkBasename]
-				if srcHdr == nil {
-					return 0, fmt.Errorf("Invalid aufs hardlink")
-				}
-				tmpFile, err := os.Open(filepath.Join(aufsTempdir, linkBasename))
-				if err != nil {
-					return 0, err
-				}
-				defer tmpFile.Close()
-				srcData = tmpFile
-			}
-
-			// if the options contain a uid & gid maps, convert header uid/gid
-			// entries using the maps such that lchown sets the proper mapped
-			// uid/gid after writing the file. We only perform this mapping if
-			// the file isn't already owned by the remapped root UID or GID, as
-			// that specific uid/gid has no mapping from container -> host, and
-			// those files already have the proper ownership for inside the
-			// container.
-			if srcHdr.Uid != remappedRootUID {
-				xUID, err := idtools.ToHost(srcHdr.Uid, options.UIDMaps)
-				if err != nil {
-					return 0, err
-				}
-				srcHdr.Uid = xUID
-			}
-			if srcHdr.Gid != remappedRootGID {
-				xGID, err := idtools.ToHost(srcHdr.Gid, options.GIDMaps)
-				if err != nil {
-					return 0, err
-				}
-				srcHdr.Gid = xGID
-			}
-			if err := createTarFile(path, dest, srcHdr, srcData, true, nil, options.InUserNS); err != nil {
-				return 0, err
-			}
-
-			// Directory mtimes must be handled at the end to avoid further
-			// file creation in them to modify the directory mtime
-			if hdr.Typeflag == tar.TypeDir {
-				dirs = append(dirs, hdr)
-			}
-			unpackedPaths[path] = struct{}{}
-		}
-	}
-
-	for _, hdr := range dirs {
-		path := filepath.Join(dest, hdr.Name)
-		if err := system.Chtimes(path, hdr.AccessTime, hdr.ModTime); err != nil {
-			return 0, err
-		}
-	}
-
-	return size, nil
-}
-
-// ApplyLayer parses a diff in the standard layer format from `layer`,
-// and applies it to the directory `dest`. The stream `layer` can be
-// compressed or uncompressed.
-// Returns the size in bytes of the contents of the layer.
-func ApplyLayer(dest string, layer io.Reader) (int64, error) {
-	return applyLayerHandler(dest, layer, &TarOptions{}, true)
-}
-
-// ApplyUncompressedLayer parses a diff in the standard layer format from
-// `layer`, and applies it to the directory `dest`. The stream `layer`
-// can only be uncompressed.
-// Returns the size in bytes of the contents of the layer.
-func ApplyUncompressedLayer(dest string, layer io.Reader, options *TarOptions) (int64, error) {
-	return applyLayerHandler(dest, layer, options, false)
-}
-
-// do the bulk load of ApplyLayer, but allow for not calling DecompressStream
-func applyLayerHandler(dest string, layer io.Reader, options *TarOptions, decompress bool) (int64, error) {
-	dest = filepath.Clean(dest)
-
-	// We need to be able to set any perms
-	oldmask, err := system.Umask(0)
-	if err != nil {
-		return 0, err
-	}
-	defer system.Umask(oldmask) // ignore err, ErrNotSupportedPlatform
-
-	if decompress {
-		layer, err = DecompressStream(layer)
-		if err != nil {
-			return 0, err
-		}
-	}
-	return UnpackLayer(dest, layer, options)
-}

vendor/github.com/docker/docker/pkg/archive/example_changes.go

@@ -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/Sirupsen/logrus"
-	"github.com/docker/docker/pkg/archive"
-)
-
-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
-}

vendor/github.com/docker/docker/pkg/archive/time_linux.go

@@ -1,16 +0,0 @@
-package archive
-
-import (
-	"syscall"
-	"time"
-)
-
-func timeToTimespec(time time.Time) (ts syscall.Timespec) {
-	if time.IsZero() {
-		// Return UTIME_OMIT special value
-		ts.Sec = 0
-		ts.Nsec = ((1 << 30) - 2)
-		return
-	}
-	return syscall.NsecToTimespec(time.UnixNano())
-}

vendor/github.com/docker/docker/pkg/archive/time_unsupported.go

@@ -1,16 +0,0 @@
-// +build !linux
-
-package archive
-
-import (
-	"syscall"
-	"time"
-)
-
-func timeToTimespec(time time.Time) (ts syscall.Timespec) {
-	nsec := int64(0)
-	if !time.IsZero() {
-		nsec = time.UnixNano()
-	}
-	return syscall.NsecToTimespec(nsec)
-}

vendor/github.com/docker/docker/pkg/archive/whiteouts.go

@@ -1,23 +0,0 @@
-package archive
-
-// Whiteouts are files with a special meaning for the layered filesystem.
-// Docker uses AUFS whiteout files inside exported archives. In other
-// filesystems these files are generated/handled on tar creation/extraction.
-
-// WhiteoutPrefix prefix means file is a whiteout. If this is followed by a
-// filename this means that file has been removed from the base layer.
-const WhiteoutPrefix = ".wh."
-
-// WhiteoutMetaPrefix prefix means whiteout has a special meaning and is not
-// for removing an actual file. Normally these files are excluded from exported
-// archives.
-const WhiteoutMetaPrefix = WhiteoutPrefix + WhiteoutPrefix
-
-// WhiteoutLinkDir is a directory AUFS uses for storing hardlink links to other
-// layers. Normally these should not go into exported archives and all changed
-// hardlinks should be copied to the top layer.
-const WhiteoutLinkDir = WhiteoutMetaPrefix + "plnk"
-
-// WhiteoutOpaqueDir file means directory has been made opaque - meaning
-// readdir calls to this directory do not follow to lower layers.
-const WhiteoutOpaqueDir = WhiteoutMetaPrefix + ".opq"

vendor/github.com/docker/docker/pkg/archive/wrap.go

@@ -1,59 +0,0 @@
-package archive
-
-import (
-	"archive/tar"
-	"bytes"
-	"io"
-)
-
-// Generate generates a new archive from the content provided
-// as input.
-//
-// `files` is a sequence of path/content pairs. A new file is
-// added to the archive for each pair.
-// If the last pair is incomplete, the file is created with an
-// empty content. For example:
-//
-// Generate("foo.txt", "hello world", "emptyfile")
-//
-// The above call will return an archive with 2 files:
-//  * ./foo.txt with content "hello world"
-//  * ./empty with empty content
-//
-// FIXME: stream content instead of buffering
-// FIXME: specify permissions and other archive metadata
-func Generate(input ...string) (io.Reader, error) {
-	files := parseStringPairs(input...)
-	buf := new(bytes.Buffer)
-	tw := tar.NewWriter(buf)
-	for _, file := range files {
-		name, content := file[0], file[1]
-		hdr := &tar.Header{
-			Name: name,
-			Size: int64(len(content)),
-		}
-		if err := tw.WriteHeader(hdr); err != nil {
-			return nil, err
-		}
-		if _, err := tw.Write([]byte(content)); err != nil {
-			return nil, err
-		}
-	}
-	if err := tw.Close(); err != nil {
-		return nil, err
-	}
-	return buf, nil
-}
-
-func parseStringPairs(input ...string) (output [][2]string) {
-	output = make([][2]string, 0, len(input)/2+1)
-	for i := 0; i < len(input); i += 2 {
-		var pair [2]string
-		pair[0] = input[i]
-		if i+1 < len(input) {
-			pair[1] = input[i+1]
-		}
-		output = append(output, pair)
-	}
-	return
-}

vendor/github.com/docker/docker/pkg/fileutils/fileutils.go

@@ -1,283 +0,0 @@
-package fileutils
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"regexp"
-	"strings"
-	"text/scanner"
-
-	"github.com/Sirupsen/logrus"
-)
-
-// exclusion returns true if the specified pattern is an exclusion
-func exclusion(pattern string) bool {
-	return pattern[0] == '!'
-}
-
-// empty returns true if the specified pattern is empty
-func empty(pattern string) bool {
-	return pattern == ""
-}
-
-// CleanPatterns takes a slice of patterns returns a new
-// slice of patterns cleaned with filepath.Clean, stripped
-// of any empty patterns and lets the caller know whether the
-// slice contains any exception patterns (prefixed with !).
-func CleanPatterns(patterns []string) ([]string, [][]string, bool, error) {
-	// Loop over exclusion patterns and:
-	// 1. Clean them up.
-	// 2. Indicate whether we are dealing with any exception rules.
-	// 3. Error if we see a single exclusion marker on its own (!).
-	cleanedPatterns := []string{}
-	patternDirs := [][]string{}
-	exceptions := false
-	for _, pattern := range patterns {
-		// Eliminate leading and trailing whitespace.
-		pattern = strings.TrimSpace(pattern)
-		if empty(pattern) {
-			continue
-		}
-		if exclusion(pattern) {
-			if len(pattern) == 1 {
-				return nil, nil, false, errors.New("Illegal exclusion pattern: !")
-			}
-			exceptions = true
-		}
-		pattern = filepath.Clean(pattern)
-		cleanedPatterns = append(cleanedPatterns, pattern)
-		if exclusion(pattern) {
-			pattern = pattern[1:]
-		}
-		patternDirs = append(patternDirs, strings.Split(pattern, string(os.PathSeparator)))
-	}
-
-	return cleanedPatterns, patternDirs, exceptions, nil
-}
-
-// Matches returns true if file matches any of the patterns
-// and isn't excluded by any of the subsequent patterns.
-func Matches(file string, patterns []string) (bool, error) {
-	file = filepath.Clean(file)
-
-	if file == "." {
-		// Don't let them exclude everything, kind of silly.
-		return false, nil
-	}
-
-	patterns, patDirs, _, err := CleanPatterns(patterns)
-	if err != nil {
-		return false, err
-	}
-
-	return OptimizedMatches(file, patterns, patDirs)
-}
-
-// OptimizedMatches is basically the same as fileutils.Matches() but optimized for archive.go.
-// It will assume that the inputs have been preprocessed and therefore the function
-// doesn't need to do as much error checking and clean-up. This was done to avoid
-// repeating these steps on each file being checked during the archive process.
-// The more generic fileutils.Matches() can't make these assumptions.
-func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool, error) {
-	matched := false
-	file = filepath.FromSlash(file)
-	parentPath := filepath.Dir(file)
-	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
-
-	for i, pattern := range patterns {
-		negative := false
-
-		if exclusion(pattern) {
-			negative = true
-			pattern = pattern[1:]
-		}
-
-		match, err := regexpMatch(pattern, file)
-		if err != nil {
-			return false, fmt.Errorf("Error in pattern (%s): %s", pattern, err)
-		}
-
-		if !match && parentPath != "." {
-			// Check to see if the pattern matches one of our parent dirs.
-			if len(patDirs[i]) <= len(parentPathDirs) {
-				match, _ = regexpMatch(strings.Join(patDirs[i], string(os.PathSeparator)),
-					strings.Join(parentPathDirs[:len(patDirs[i])], string(os.PathSeparator)))
-			}
-		}
-
-		if match {
-			matched = !negative
-		}
-	}
-
-	if matched {
-		logrus.Debugf("Skipping excluded path: %s", file)
-	}
-
-	return matched, nil
-}
-
-// regexpMatch tries to match the logic of filepath.Match but
-// does so using regexp logic. We do this so that we can expand the
-// wildcard set to include other things, like "**" to mean any number
-// of directories.  This means that we should be backwards compatible
-// with filepath.Match(). We'll end up supporting more stuff, due to
-// the fact that we're using regexp, but that's ok - it does no harm.
-//
-// As per the comment in golangs filepath.Match, on Windows, escaping
-// is disabled. Instead, '\\' is treated as path separator.
-func regexpMatch(pattern, path string) (bool, error) {
-	regStr := "^"
-
-	// Do some syntax checking on the pattern.
-	// filepath's Match() has some really weird rules that are inconsistent
-	// so instead of trying to dup their logic, just call Match() for its
-	// error state and if there is an error in the pattern return it.
-	// If this becomes an issue we can remove this since its really only
-	// needed in the error (syntax) case - which isn't really critical.
-	if _, err := filepath.Match(pattern, path); err != nil {
-		return false, err
-	}
-
-	// Go through the pattern and convert it to a regexp.
-	// We use a scanner so we can support utf-8 chars.
-	var scan scanner.Scanner
-	scan.Init(strings.NewReader(pattern))
-
-	sl := string(os.PathSeparator)
-	escSL := sl
-	if sl == `\` {
-		escSL += `\`
-	}
-
-	for scan.Peek() != scanner.EOF {
-		ch := scan.Next()
-
-		if ch == '*' {
-			if scan.Peek() == '*' {
-				// is some flavor of "**"
-				scan.Next()
-
-				if scan.Peek() == scanner.EOF {
-					// is "**EOF" - to align with .gitignore just accept all
-					regStr += ".*"
-				} else {
-					// is "**"
-					regStr += "((.*" + escSL + ")|([^" + escSL + "]*))"
-				}
-
-				// Treat **/ as ** so eat the "/"
-				if string(scan.Peek()) == sl {
-					scan.Next()
-				}
-			} else {
-				// is "*" so map it to anything but "/"
-				regStr += "[^" + escSL + "]*"
-			}
-		} else if ch == '?' {
-			// "?" is any char except "/"
-			regStr += "[^" + escSL + "]"
-		} else if ch == '.' || ch == '$' {
-			// Escape some regexp special chars that have no meaning
-			// in golang's filepath.Match
-			regStr += `\` + string(ch)
-		} else if ch == '\\' {
-			// escape next char. Note that a trailing \ in the pattern
-			// will be left alone (but need to escape it)
-			if sl == `\` {
-				// On windows map "\" to "\\", meaning an escaped backslash,
-				// and then just continue because filepath.Match on
-				// Windows doesn't allow escaping at all
-				regStr += escSL
-				continue
-			}
-			if scan.Peek() != scanner.EOF {
-				regStr += `\` + string(scan.Next())
-			} else {
-				regStr += `\`
-			}
-		} else {
-			regStr += string(ch)
-		}
-	}
-
-	regStr += "$"
-
-	res, err := regexp.MatchString(regStr, path)
-
-	// Map regexp's error to filepath's so no one knows we're not using filepath
-	if err != nil {
-		err = filepath.ErrBadPattern
-	}
-
-	return res, err
-}
-
-// CopyFile copies from src to dst until either EOF is reached
-// on src or an error occurs. It verifies src exists and removes
-// the dst if it exists.
-func CopyFile(src, dst string) (int64, error) {
-	cleanSrc := filepath.Clean(src)
-	cleanDst := filepath.Clean(dst)
-	if cleanSrc == cleanDst {
-		return 0, nil
-	}
-	sf, err := os.Open(cleanSrc)
-	if err != nil {
-		return 0, err
-	}
-	defer sf.Close()
-	if err := os.Remove(cleanDst); err != nil && !os.IsNotExist(err) {
-		return 0, err
-	}
-	df, err := os.Create(cleanDst)
-	if err != nil {
-		return 0, err
-	}
-	defer df.Close()
-	return io.Copy(df, sf)
-}
-
-// ReadSymlinkedDirectory returns the target directory of a symlink.
-// The target of the symbolic link may not be a file.
-func ReadSymlinkedDirectory(path string) (string, error) {
-	var realPath string
-	var err error
-	if realPath, err = filepath.Abs(path); err != nil {
-		return "", fmt.Errorf("unable to get absolute path for %s: %s", path, err)
-	}
-	if realPath, err = filepath.EvalSymlinks(realPath); err != nil {
-		return "", fmt.Errorf("failed to canonicalise path for %s: %s", path, err)
-	}
-	realPathInfo, err := os.Stat(realPath)
-	if err != nil {
-		return "", fmt.Errorf("failed to stat target '%s' of '%s': %s", realPath, path, err)
-	}
-	if !realPathInfo.Mode().IsDir() {
-		return "", fmt.Errorf("canonical path points to a file '%s'", realPath)
-	}
-	return realPath, nil
-}
-
-// CreateIfNotExists creates a file or a directory only if it does not already exist.
-func CreateIfNotExists(path string, isDir bool) error {
-	if _, err := os.Stat(path); err != nil {
-		if os.IsNotExist(err) {
-			if isDir {
-				return os.MkdirAll(path, 0755)
-			}
-			if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
-				return err
-			}
-			f, err := os.OpenFile(path, os.O_CREATE, 0755)
-			if err != nil {
-				return err
-			}
-			f.Close()
-		}
-	}
-	return nil
-}

vendor/github.com/docker/docker/pkg/fileutils/fileutils_darwin.go

@@ -1,27 +0,0 @@
-package fileutils
-
-import (
-	"os"
-	"os/exec"
-	"strconv"
-	"strings"
-)
-
-// GetTotalUsedFds returns the number of used File Descriptors by
-// executing `lsof -p PID`
-func GetTotalUsedFds() int {
-	pid := os.Getpid()
-
-	cmd := exec.Command("lsof", "-p", strconv.Itoa(pid))
-
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return -1
-	}
-
-	outputStr := strings.TrimSpace(string(output))
-
-	fds := strings.Split(outputStr, "\n")
-
-	return len(fds) - 1
-}

vendor/github.com/docker/docker/pkg/fileutils/fileutils_solaris.go

@@ -1,7 +0,0 @@
-package fileutils
-
-// GetTotalUsedFds Returns the number of used File Descriptors.
-// On Solaris these limits are per process and not systemwide
-func GetTotalUsedFds() int {
-	return -1
-}

vendor/github.com/docker/docker/pkg/fileutils/fileutils_unix.go

@@ -1,22 +0,0 @@
-// +build linux freebsd
-
-package fileutils
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-
-	"github.com/Sirupsen/logrus"
-)
-
-// GetTotalUsedFds Returns the number of used File Descriptors by
-// reading it via /proc filesystem.
-func GetTotalUsedFds() int {
-	if fds, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/fd", os.Getpid())); err != nil {
-		logrus.Errorf("Error opening /proc/%d/fd: %s", os.Getpid(), err)
-	} else {
-		return len(fds)
-	}
-	return -1
-}

vendor/github.com/docker/docker/pkg/fileutils/fileutils_windows.go

@@ -1,7 +0,0 @@
-package fileutils
-
-// GetTotalUsedFds Returns the number of used File Descriptors. Not supported
-// on Windows.
-func GetTotalUsedFds() int {
-	return -1
-}

vendor/github.com/docker/docker/pkg/idtools/idtools.go

@@ -1,197 +0,0 @@
-package idtools
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"sort"
-	"strconv"
-	"strings"
-)
-
-// IDMap contains a single entry for user namespace range remapping. An array
-// of IDMap entries represents the structure that will be provided to the Linux
-// kernel for creating a user namespace.
-type IDMap struct {
-	ContainerID int `json:"container_id"`
-	HostID      int `json:"host_id"`
-	Size        int `json:"size"`
-}
-
-type subIDRange struct {
-	Start  int
-	Length int
-}
-
-type ranges []subIDRange
-
-func (e ranges) Len() int           { return len(e) }
-func (e ranges) Swap(i, j int)      { e[i], e[j] = e[j], e[i] }
-func (e ranges) Less(i, j int) bool { return e[i].Start < e[j].Start }
-
-const (
-	subuidFileName string = "/etc/subuid"
-	subgidFileName string = "/etc/subgid"
-)
-
-// MkdirAllAs creates a directory (include any along the path) and then modifies
-// ownership to the requested uid/gid.  If the directory already exists, this
-// function will still change ownership to the requested uid/gid pair.
-func MkdirAllAs(path string, mode os.FileMode, ownerUID, ownerGID int) error {
-	return mkdirAs(path, mode, ownerUID, ownerGID, true, true)
-}
-
-// MkdirAllNewAs creates a directory (include any along the path) and then modifies
-// ownership ONLY of newly created directories to the requested uid/gid. If the
-// directories along the path exist, no change of ownership will be performed
-func MkdirAllNewAs(path string, mode os.FileMode, ownerUID, ownerGID int) error {
-	return mkdirAs(path, mode, ownerUID, ownerGID, true, false)
-}
-
-// MkdirAs creates a directory and then modifies ownership to the requested uid/gid.
-// If the directory already exists, this function still changes ownership
-func MkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int) error {
-	return mkdirAs(path, mode, ownerUID, ownerGID, false, true)
-}
-
-// GetRootUIDGID retrieves the remapped root uid/gid pair from the set of maps.
-// If the maps are empty, then the root uid/gid will default to "real" 0/0
-func GetRootUIDGID(uidMap, gidMap []IDMap) (int, int, error) {
-	var uid, gid int
-
-	if uidMap != nil {
-		xUID, err := ToHost(0, uidMap)
-		if err != nil {
-			return -1, -1, err
-		}
-		uid = xUID
-	}
-	if gidMap != nil {
-		xGID, err := ToHost(0, gidMap)
-		if err != nil {
-			return -1, -1, err
-		}
-		gid = xGID
-	}
-	return uid, gid, nil
-}
-
-// ToContainer takes an id mapping, and uses it to translate a
-// host ID to the remapped ID. If no map is provided, then the translation
-// assumes a 1-to-1 mapping and returns the passed in id
-func ToContainer(hostID int, idMap []IDMap) (int, error) {
-	if idMap == nil {
-		return hostID, nil
-	}
-	for _, m := range idMap {
-		if (hostID >= m.HostID) && (hostID <= (m.HostID + m.Size - 1)) {
-			contID := m.ContainerID + (hostID - m.HostID)
-			return contID, nil
-		}
-	}
-	return -1, fmt.Errorf("Host ID %d cannot be mapped to a container ID", hostID)
-}
-
-// ToHost takes an id mapping and a remapped ID, and translates the
-// ID to the mapped host ID. If no map is provided, then the translation
-// assumes a 1-to-1 mapping and returns the passed in id #
-func ToHost(contID int, idMap []IDMap) (int, error) {
-	if idMap == nil {
-		return contID, nil
-	}
-	for _, m := range idMap {
-		if (contID >= m.ContainerID) && (contID <= (m.ContainerID + m.Size - 1)) {
-			hostID := m.HostID + (contID - m.ContainerID)
-			return hostID, nil
-		}
-	}
-	return -1, fmt.Errorf("Container ID %d cannot be mapped to a host ID", contID)
-}
-
-// CreateIDMappings takes a requested user and group name and
-// using the data from /etc/sub{uid,gid} ranges, creates the
-// proper uid and gid remapping ranges for that user/group pair
-func CreateIDMappings(username, groupname string) ([]IDMap, []IDMap, error) {
-	subuidRanges, err := parseSubuid(username)
-	if err != nil {
-		return nil, nil, err
-	}
-	subgidRanges, err := parseSubgid(groupname)
-	if err != nil {
-		return nil, nil, err
-	}
-	if len(subuidRanges) == 0 {
-		return nil, nil, fmt.Errorf("No subuid ranges found for user %q", username)
-	}
-	if len(subgidRanges) == 0 {
-		return nil, nil, fmt.Errorf("No subgid ranges found for group %q", groupname)
-	}
-
-	return createIDMap(subuidRanges), createIDMap(subgidRanges), nil
-}
-
-func createIDMap(subidRanges ranges) []IDMap {
-	idMap := []IDMap{}
-
-	// sort the ranges by lowest ID first
-	sort.Sort(subidRanges)
-	containerID := 0
-	for _, idrange := range subidRanges {
-		idMap = append(idMap, IDMap{
-			ContainerID: containerID,
-			HostID:      idrange.Start,
-			Size:        idrange.Length,
-		})
-		containerID = containerID + idrange.Length
-	}
-	return idMap
-}
-
-func parseSubuid(username string) (ranges, error) {
-	return parseSubidFile(subuidFileName, username)
-}
-
-func parseSubgid(username string) (ranges, error) {
-	return parseSubidFile(subgidFileName, username)
-}
-
-// parseSubidFile will read the appropriate file (/etc/subuid or /etc/subgid)
-// and return all found ranges for a specified username. If the special value
-// "ALL" is supplied for username, then all ranges in the file will be returned
-func parseSubidFile(path, username string) (ranges, error) {
-	var rangeList ranges
-
-	subidFile, err := os.Open(path)
-	if err != nil {
-		return rangeList, err
-	}
-	defer subidFile.Close()
-
-	s := bufio.NewScanner(subidFile)
-	for s.Scan() {
-		if err := s.Err(); err != nil {
-			return rangeList, err
-		}
-
-		text := strings.TrimSpace(s.Text())
-		if text == "" || strings.HasPrefix(text, "#") {
-			continue
-		}
-		parts := strings.Split(text, ":")
-		if len(parts) != 3 {
-			return rangeList, fmt.Errorf("Cannot parse subuid/gid information: Format not correct for %s file", path)
-		}
-		if parts[0] == username || username == "ALL" {
-			startid, err := strconv.Atoi(parts[1])
-			if err != nil {
-				return rangeList, fmt.Errorf("String to int conversion failed during subuid/gid parsing of %s: %v", path, err)
-			}
-			length, err := strconv.Atoi(parts[2])
-			if err != nil {
-				return rangeList, fmt.Errorf("String to int conversion failed during subuid/gid parsing of %s: %v", path, err)
-			}
-			rangeList = append(rangeList, subIDRange{startid, length})
-		}
-	}
-	return rangeList, nil
-}

vendor/github.com/docker/docker/pkg/idtools/idtools_unix.go

@@ -1,207 +0,0 @@
-// +build !windows
-
-package idtools
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-	"sync"
-
-	"github.com/docker/docker/pkg/system"
-	"github.com/opencontainers/runc/libcontainer/user"
-)
-
-var (
-	entOnce   sync.Once
-	getentCmd string
-)
-
-func mkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int, mkAll, chownExisting bool) error {
-	// make an array containing the original path asked for, plus (for mkAll == true)
-	// all path components leading up to the complete path that don't exist before we MkdirAll
-	// so that we can chown all of them properly at the end.  If chownExisting is false, we won't
-	// chown the full directory path if it exists
-	var paths []string
-	if _, err := os.Stat(path); err != nil && os.IsNotExist(err) {
-		paths = []string{path}
-	} else if err == nil && chownExisting {
-		if err := os.Chown(path, ownerUID, ownerGID); err != nil {
-			return err
-		}
-		// short-circuit--we were called with an existing directory and chown was requested
-		return nil
-	} else if err == nil {
-		// nothing to do; directory path fully exists already and chown was NOT requested
-		return nil
-	}
-
-	if mkAll {
-		// walk back to "/" looking for directories which do not exist
-		// and add them to the paths array for chown after creation
-		dirPath := path
-		for {
-			dirPath = filepath.Dir(dirPath)
-			if dirPath == "/" {
-				break
-			}
-			if _, err := os.Stat(dirPath); err != nil && os.IsNotExist(err) {
-				paths = append(paths, dirPath)
-			}
-		}
-		if err := system.MkdirAll(path, mode); err != nil && !os.IsExist(err) {
-			return err
-		}
-	} else {
-		if err := os.Mkdir(path, mode); err != nil && !os.IsExist(err) {
-			return err
-		}
-	}
-	// even if it existed, we will chown the requested path + any subpaths that
-	// didn't exist when we called MkdirAll
-	for _, pathComponent := range paths {
-		if err := os.Chown(pathComponent, ownerUID, ownerGID); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// CanAccess takes a valid (existing) directory and a uid, gid pair and determines
-// if that uid, gid pair has access (execute bit) to the directory
-func CanAccess(path string, uid, gid int) bool {
-	statInfo, err := system.Stat(path)
-	if err != nil {
-		return false
-	}
-	fileMode := os.FileMode(statInfo.Mode())
-	permBits := fileMode.Perm()
-	return accessible(statInfo.UID() == uint32(uid),
-		statInfo.GID() == uint32(gid), permBits)
-}
-
-func accessible(isOwner, isGroup bool, perms os.FileMode) bool {
-	if isOwner && (perms&0100 == 0100) {
-		return true
-	}
-	if isGroup && (perms&0010 == 0010) {
-		return true
-	}
-	if perms&0001 == 0001 {
-		return true
-	}
-	return false
-}
-
-// LookupUser uses traditional local system files lookup (from libcontainer/user) on a username,
-// followed by a call to `getent` for supporting host configured non-files passwd and group dbs
-func LookupUser(username string) (user.User, error) {
-	// first try a local system files lookup using existing capabilities
-	usr, err := user.LookupUser(username)
-	if err == nil {
-		return usr, nil
-	}
-	// local files lookup failed; attempt to call `getent` to query configured passwd dbs
-	usr, err = getentUser(fmt.Sprintf("%s %s", "passwd", username))
-	if err != nil {
-		return user.User{}, err
-	}
-	return usr, nil
-}
-
-// LookupUID uses traditional local system files lookup (from libcontainer/user) on a uid,
-// followed by a call to `getent` for supporting host configured non-files passwd and group dbs
-func LookupUID(uid int) (user.User, error) {
-	// first try a local system files lookup using existing capabilities
-	usr, err := user.LookupUid(uid)
-	if err == nil {
-		return usr, nil
-	}
-	// local files lookup failed; attempt to call `getent` to query configured passwd dbs
-	return getentUser(fmt.Sprintf("%s %d", "passwd", uid))
-}
-
-func getentUser(args string) (user.User, error) {
-	reader, err := callGetent(args)
-	if err != nil {
-		return user.User{}, err
-	}
-	users, err := user.ParsePasswd(reader)
-	if err != nil {
-		return user.User{}, err
-	}
-	if len(users) == 0 {
-		return user.User{}, fmt.Errorf("getent failed to find passwd entry for %q", strings.Split(args, " ")[1])
-	}
-	return users[0], nil
-}
-
-// LookupGroup uses traditional local system files lookup (from libcontainer/user) on a group name,
-// followed by a call to `getent` for supporting host configured non-files passwd and group dbs
-func LookupGroup(groupname string) (user.Group, error) {
-	// first try a local system files lookup using existing capabilities
-	group, err := user.LookupGroup(groupname)
-	if err == nil {
-		return group, nil
-	}
-	// local files lookup failed; attempt to call `getent` to query configured group dbs
-	return getentGroup(fmt.Sprintf("%s %s", "group", groupname))
-}
-
-// LookupGID uses traditional local system files lookup (from libcontainer/user) on a group ID,
-// followed by a call to `getent` for supporting host configured non-files passwd and group dbs
-func LookupGID(gid int) (user.Group, error) {
-	// first try a local system files lookup using existing capabilities
-	group, err := user.LookupGid(gid)
-	if err == nil {
-		return group, nil
-	}
-	// local files lookup failed; attempt to call `getent` to query configured group dbs
-	return getentGroup(fmt.Sprintf("%s %d", "group", gid))
-}
-
-func getentGroup(args string) (user.Group, error) {
-	reader, err := callGetent(args)
-	if err != nil {
-		return user.Group{}, err
-	}
-	groups, err := user.ParseGroup(reader)
-	if err != nil {
-		return user.Group{}, err
-	}
-	if len(groups) == 0 {
-		return user.Group{}, fmt.Errorf("getent failed to find groups entry for %q", strings.Split(args, " ")[1])
-	}
-	return groups[0], nil
-}
-
-func callGetent(args string) (io.Reader, error) {
-	entOnce.Do(func() { getentCmd, _ = resolveBinary("getent") })
-	// if no `getent` command on host, can't do anything else
-	if getentCmd == "" {
-		return nil, fmt.Errorf("")
-	}
-	out, err := execCmd(getentCmd, args)
-	if err != nil {
-		exitCode, errC := system.GetExitCode(err)
-		if errC != nil {
-			return nil, err
-		}
-		switch exitCode {
-		case 1:
-			return nil, fmt.Errorf("getent reported invalid parameters/database unknown")
-		case 2:
-			terms := strings.Split(args, " ")
-			return nil, fmt.Errorf("getent unable to find entry %q in %s database", terms[1], terms[0])
-		case 3:
-			return nil, fmt.Errorf("getent database doesn't support enumeration")
-		default:
-			return nil, err
-		}
-
-	}
-	return bytes.NewReader(out), nil
-}

vendor/github.com/docker/docker/pkg/idtools/idtools_windows.go

@@ -1,25 +0,0 @@
-// +build windows
-
-package idtools
-
-import (
-	"os"
-
-	"github.com/docker/docker/pkg/system"
-)
-
-// Platforms such as Windows do not support the UID/GID concept. So make this
-// just a wrapper around system.MkdirAll.
-func mkdirAs(path string, mode os.FileMode, ownerUID, ownerGID int, mkAll, chownExisting bool) error {
-	if err := system.MkdirAll(path, mode); err != nil && !os.IsExist(err) {
-		return err
-	}
-	return nil
-}
-
-// CanAccess takes a valid (existing) directory and a uid, gid pair and determines
-// if that uid, gid pair has access (execute bit) to the directory
-// Windows does not require/support this function, so always return true
-func CanAccess(path string, uid, gid int) bool {
-	return true
-}

vendor/github.com/docker/docker/pkg/idtools/usergroupadd_linux.go

@@ -1,164 +0,0 @@
-package idtools
-
-import (
-	"fmt"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-// add a user and/or group to Linux /etc/passwd, /etc/group using standard
-// Linux distribution commands:
-// adduser --system --shell /bin/false --disabled-login --disabled-password --no-create-home --group <username>
-// useradd -r -s /bin/false <username>
-
-var (
-	once        sync.Once
-	userCommand string
-
-	cmdTemplates = map[string]string{
-		"adduser": "--system --shell /bin/false --no-create-home --disabled-login --disabled-password --group %s",
-		"useradd": "-r -s /bin/false %s",
-		"usermod": "-%s %d-%d %s",
-	}
-
-	idOutRegexp = regexp.MustCompile(`uid=([0-9]+).*gid=([0-9]+)`)
-	// default length for a UID/GID subordinate range
-	defaultRangeLen   = 65536
-	defaultRangeStart = 100000
-	userMod           = "usermod"
-)
-
-// AddNamespaceRangesUser takes a username and uses the standard system
-// utility to create a system user/group pair used to hold the
-// /etc/sub{uid,gid} ranges which will be used for user namespace
-// mapping ranges in containers.
-func AddNamespaceRangesUser(name string) (int, int, error) {
-	if err := addUser(name); err != nil {
-		return -1, -1, fmt.Errorf("Error adding user %q: %v", name, err)
-	}
-
-	// Query the system for the created uid and gid pair
-	out, err := execCmd("id", name)
-	if err != nil {
-		return -1, -1, fmt.Errorf("Error trying to find uid/gid for new user %q: %v", name, err)
-	}
-	matches := idOutRegexp.FindStringSubmatch(strings.TrimSpace(string(out)))
-	if len(matches) != 3 {
-		return -1, -1, fmt.Errorf("Can't find uid, gid from `id` output: %q", string(out))
-	}
-	uid, err := strconv.Atoi(matches[1])
-	if err != nil {
-		return -1, -1, fmt.Errorf("Can't convert found uid (%s) to int: %v", matches[1], err)
-	}
-	gid, err := strconv.Atoi(matches[2])
-	if err != nil {
-		return -1, -1, fmt.Errorf("Can't convert found gid (%s) to int: %v", matches[2], err)
-	}
-
-	// Now we need to create the subuid/subgid ranges for our new user/group (system users
-	// do not get auto-created ranges in subuid/subgid)
-
-	if err := createSubordinateRanges(name); err != nil {
-		return -1, -1, fmt.Errorf("Couldn't create subordinate ID ranges: %v", err)
-	}
-	return uid, gid, nil
-}
-
-func addUser(userName string) error {
-	once.Do(func() {
-		// set up which commands are used for adding users/groups dependent on distro
-		if _, err := resolveBinary("adduser"); err == nil {
-			userCommand = "adduser"
-		} else if _, err := resolveBinary("useradd"); err == nil {
-			userCommand = "useradd"
-		}
-	})
-	if userCommand == "" {
-		return fmt.Errorf("Cannot add user; no useradd/adduser binary found")
-	}
-	args := fmt.Sprintf(cmdTemplates[userCommand], userName)
-	out, err := execCmd(userCommand, args)
-	if err != nil {
-		return fmt.Errorf("Failed to add user with error: %v; output: %q", err, string(out))
-	}
-	return nil
-}
-
-func createSubordinateRanges(name string) error {
-
-	// first, we should verify that ranges weren't automatically created
-	// by the distro tooling
-	ranges, err := parseSubuid(name)
-	if err != nil {
-		return fmt.Errorf("Error while looking for subuid ranges for user %q: %v", name, err)
-	}
-	if len(ranges) == 0 {
-		// no UID ranges; let's create one
-		startID, err := findNextUIDRange()
-		if err != nil {
-			return fmt.Errorf("Can't find available subuid range: %v", err)
-		}
-		out, err := execCmd(userMod, fmt.Sprintf(cmdTemplates[userMod], "v", startID, startID+defaultRangeLen-1, name))
-		if err != nil {
-			return fmt.Errorf("Unable to add subuid range to user: %q; output: %s, err: %v", name, out, err)
-		}
-	}
-
-	ranges, err = parseSubgid(name)
-	if err != nil {
-		return fmt.Errorf("Error while looking for subgid ranges for user %q: %v", name, err)
-	}
-	if len(ranges) == 0 {
-		// no GID ranges; let's create one
-		startID, err := findNextGIDRange()
-		if err != nil {
-			return fmt.Errorf("Can't find available subgid range: %v", err)
-		}
-		out, err := execCmd(userMod, fmt.Sprintf(cmdTemplates[userMod], "w", startID, startID+defaultRangeLen-1, name))
-		if err != nil {
-			return fmt.Errorf("Unable to add subgid range to user: %q; output: %s, err: %v", name, out, err)
-		}
-	}
-	return nil
-}
-
-func findNextUIDRange() (int, error) {
-	ranges, err := parseSubuid("ALL")
-	if err != nil {
-		return -1, fmt.Errorf("Couldn't parse all ranges in /etc/subuid file: %v", err)
-	}
-	sort.Sort(ranges)
-	return findNextRangeStart(ranges)
-}
-
-func findNextGIDRange() (int, error) {
-	ranges, err := parseSubgid("ALL")
-	if err != nil {
-		return -1, fmt.Errorf("Couldn't parse all ranges in /etc/subgid file: %v", err)
-	}
-	sort.Sort(ranges)
-	return findNextRangeStart(ranges)
-}
-
-func findNextRangeStart(rangeList ranges) (int, error) {
-	startID := defaultRangeStart
-	for _, arange := range rangeList {
-		if wouldOverlap(arange, startID) {
-			startID = arange.Start + arange.Length
-		}
-	}
-	return startID, nil
-}
-
-func wouldOverlap(arange subIDRange, ID int) bool {
-	low := ID
-	high := ID + defaultRangeLen
-	if (low >= arange.Start && low <= arange.Start+arange.Length) ||
-		(high <= arange.Start+arange.Length && high >= arange.Start) {
-		return true
-	}
-	return false
-}

vendor/github.com/docker/docker/pkg/idtools/usergroupadd_unsupported.go

@@ -1,12 +0,0 @@
-// +build !linux
-
-package idtools
-
-import "fmt"
-
-// AddNamespaceRangesUser takes a name and finds an unused uid, gid pair
-// and calls the appropriate helper function to add the group and then
-// the user to the group in /etc/group and /etc/passwd respectively.
-func AddNamespaceRangesUser(name string) (int, int, error) {
-	return -1, -1, fmt.Errorf("No support for adding users or groups on this OS")
-}

vendor/github.com/docker/docker/pkg/idtools/utils_unix.go

@@ -1,32 +0,0 @@
-// +build !windows
-
-package idtools
-
-import (
-	"fmt"
-	"os/exec"
-	"path/filepath"
-	"strings"
-)
-
-func resolveBinary(binname string) (string, error) {
-	binaryPath, err := exec.LookPath(binname)
-	if err != nil {
-		return "", err
-	}
-	resolvedPath, err := filepath.EvalSymlinks(binaryPath)
-	if err != nil {
-		return "", err
-	}
-	//only return no error if the final resolved binary basename
-	//matches what was searched for
-	if filepath.Base(resolvedPath) == binname {
-		return resolvedPath, nil
-	}
-	return "", fmt.Errorf("Binary %q does not resolve to a binary of that name in $PATH (%q)", binname, resolvedPath)
-}
-
-func execCmd(cmd, args string) ([]byte, error) {
-	execCmd := exec.Command(cmd, strings.Split(args, " ")...)
-	return execCmd.CombinedOutput()
-}

vendor/github.com/docker/docker/pkg/ioutils/buffer.go

@@ -1,51 +0,0 @@
-package ioutils
-
-import (
-	"errors"
-	"io"
-)
-
-var errBufferFull = errors.New("buffer is full")
-
-type fixedBuffer struct {
-	buf      []byte
-	pos      int
-	lastRead int
-}
-
-func (b *fixedBuffer) Write(p []byte) (int, error) {
-	n := copy(b.buf[b.pos:cap(b.buf)], p)
-	b.pos += n
-
-	if n < len(p) {
-		if b.pos == cap(b.buf) {
-			return n, errBufferFull
-		}
-		return n, io.ErrShortWrite
-	}
-	return n, nil
-}
-
-func (b *fixedBuffer) Read(p []byte) (int, error) {
-	n := copy(p, b.buf[b.lastRead:b.pos])
-	b.lastRead += n
-	return n, nil
-}
-
-func (b *fixedBuffer) Len() int {
-	return b.pos - b.lastRead
-}
-
-func (b *fixedBuffer) Cap() int {
-	return cap(b.buf)
-}
-
-func (b *fixedBuffer) Reset() {
-	b.pos = 0
-	b.lastRead = 0
-	b.buf = b.buf[:0]
-}
-
-func (b *fixedBuffer) String() string {
-	return string(b.buf[b.lastRead:b.pos])
-}

vendor/github.com/docker/docker/pkg/ioutils/bytespipe.go

@@ -1,186 +0,0 @@
-package ioutils
-
-import (
-	"errors"
-	"io"
-	"sync"
-)
-
-// maxCap is the highest capacity to use in byte slices that buffer data.
-const maxCap = 1e6
-
-// minCap is the lowest capacity to use in byte slices that buffer data
-const minCap = 64
-
-// blockThreshold is the minimum number of bytes in the buffer which will cause
-// a write to BytesPipe to block when allocating a new slice.
-const blockThreshold = 1e6
-
-var (
-	// ErrClosed is returned when Write is called on a closed BytesPipe.
-	ErrClosed = errors.New("write to closed BytesPipe")
-
-	bufPools     = make(map[int]*sync.Pool)
-	bufPoolsLock sync.Mutex
-)
-
-// BytesPipe is io.ReadWriteCloser which works similarly to pipe(queue).
-// All written data may be read at most once. Also, BytesPipe allocates
-// and releases new byte slices to adjust to current needs, so the buffer
-// won't be overgrown after peak loads.
-type BytesPipe struct {
-	mu       sync.Mutex
-	wait     *sync.Cond
-	buf      []*fixedBuffer
-	bufLen   int
-	closeErr error // error to return from next Read. set to nil if not closed.
-}
-
-// NewBytesPipe creates new BytesPipe, initialized by specified slice.
-// If buf is nil, then it will be initialized with slice which cap is 64.
-// buf will be adjusted in a way that len(buf) == 0, cap(buf) == cap(buf).
-func NewBytesPipe() *BytesPipe {
-	bp := &BytesPipe{}
-	bp.buf = append(bp.buf, getBuffer(minCap))
-	bp.wait = sync.NewCond(&bp.mu)
-	return bp
-}
-
-// Write writes p to BytesPipe.
-// It can allocate new []byte slices in a process of writing.
-func (bp *BytesPipe) Write(p []byte) (int, error) {
-	bp.mu.Lock()
-
-	written := 0
-loop0:
-	for {
-		if bp.closeErr != nil {
-			bp.mu.Unlock()
-			return written, ErrClosed
-		}
-
-		if len(bp.buf) == 0 {
-			bp.buf = append(bp.buf, getBuffer(64))
-		}
-		// get the last buffer
-		b := bp.buf[len(bp.buf)-1]
-
-		n, err := b.Write(p)
-		written += n
-		bp.bufLen += n
-
-		// errBufferFull is an error we expect to get if the buffer is full
-		if err != nil && err != errBufferFull {
-			bp.wait.Broadcast()
-			bp.mu.Unlock()
-			return written, err
-		}
-
-		// if there was enough room to write all then break
-		if len(p) == n {
-			break
-		}
-
-		// more data: write to the next slice
-		p = p[n:]
-
-		// make sure the buffer doesn't grow too big from this write
-		for bp.bufLen >= blockThreshold {
-			bp.wait.Wait()
-			if bp.closeErr != nil {
-				continue loop0
-			}
-		}
-
-		// add new byte slice to the buffers slice and continue writing
-		nextCap := b.Cap() * 2
-		if nextCap > maxCap {
-			nextCap = maxCap
-		}
-		bp.buf = append(bp.buf, getBuffer(nextCap))
-	}
-	bp.wait.Broadcast()
-	bp.mu.Unlock()
-	return written, nil
-}
-
-// CloseWithError causes further reads from a BytesPipe to return immediately.
-func (bp *BytesPipe) CloseWithError(err error) error {
-	bp.mu.Lock()
-	if err != nil {
-		bp.closeErr = err
-	} else {
-		bp.closeErr = io.EOF
-	}
-	bp.wait.Broadcast()
-	bp.mu.Unlock()
-	return nil
-}
-
-// Close causes further reads from a BytesPipe to return immediately.
-func (bp *BytesPipe) Close() error {
-	return bp.CloseWithError(nil)
-}
-
-// Read reads bytes from BytesPipe.
-// Data could be read only once.
-func (bp *BytesPipe) Read(p []byte) (n int, err error) {
-	bp.mu.Lock()
-	if bp.bufLen == 0 {
-		if bp.closeErr != nil {
-			bp.mu.Unlock()
-			return 0, bp.closeErr
-		}
-		bp.wait.Wait()
-		if bp.bufLen == 0 && bp.closeErr != nil {
-			err := bp.closeErr
-			bp.mu.Unlock()
-			return 0, err
-		}
-	}
-
-	for bp.bufLen > 0 {
-		b := bp.buf[0]
-		read, _ := b.Read(p) // ignore error since fixedBuffer doesn't really return an error
-		n += read
-		bp.bufLen -= read
-
-		if b.Len() == 0 {
-			// it's empty so return it to the pool and move to the next one
-			returnBuffer(b)
-			bp.buf[0] = nil
-			bp.buf = bp.buf[1:]
-		}
-
-		if len(p) == read {
-			break
-		}
-
-		p = p[read:]
-	}
-
-	bp.wait.Broadcast()
-	bp.mu.Unlock()
-	return
-}
-
-func returnBuffer(b *fixedBuffer) {
-	b.Reset()
-	bufPoolsLock.Lock()
-	pool := bufPools[b.Cap()]
-	bufPoolsLock.Unlock()
-	if pool != nil {
-		pool.Put(b)
-	}
-}
-
-func getBuffer(size int) *fixedBuffer {
-	bufPoolsLock.Lock()
-	pool, ok := bufPools[size]
-	if !ok {
-		pool = &sync.Pool{New: func() interface{} { return &fixedBuffer{buf: make([]byte, 0, size)} }}
-		bufPools[size] = pool
-	}
-	bufPoolsLock.Unlock()
-	return pool.Get().(*fixedBuffer)
-}

vendor/github.com/docker/docker/pkg/ioutils/fmt.go

@@ -1,22 +0,0 @@
-package ioutils
-
-import (
-	"fmt"
-	"io"
-)
-
-// FprintfIfNotEmpty prints the string value if it's not empty
-func FprintfIfNotEmpty(w io.Writer, format, value string) (int, error) {
-	if value != "" {
-		return fmt.Fprintf(w, format, value)
-	}
-	return 0, nil
-}
-
-// FprintfIfTrue prints the boolean value if it's true
-func FprintfIfTrue(w io.Writer, format string, ok bool) (int, error) {
-	if ok {
-		return fmt.Fprintf(w, format, ok)
-	}
-	return 0, nil
-}

vendor/github.com/docker/docker/pkg/ioutils/fswriters.go

@@ -1,162 +0,0 @@
-package ioutils
-
-import (
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-)
-
-// NewAtomicFileWriter returns WriteCloser so that writing to it writes to a
-// temporary file and closing it atomically changes the temporary file to
-// destination path. Writing and closing concurrently is not allowed.
-func NewAtomicFileWriter(filename string, perm os.FileMode) (io.WriteCloser, error) {
-	f, err := ioutil.TempFile(filepath.Dir(filename), ".tmp-"+filepath.Base(filename))
-	if err != nil {
-		return nil, err
-	}
-
-	abspath, err := filepath.Abs(filename)
-	if err != nil {
-		return nil, err
-	}
-	return &atomicFileWriter{
-		f:    f,
-		fn:   abspath,
-		perm: perm,
-	}, nil
-}
-
-// AtomicWriteFile atomically writes data to a file named by filename.
-func AtomicWriteFile(filename string, data []byte, perm os.FileMode) error {
-	f, err := NewAtomicFileWriter(filename, perm)
-	if err != nil {
-		return err
-	}
-	n, err := f.Write(data)
-	if err == nil && n < len(data) {
-		err = io.ErrShortWrite
-		f.(*atomicFileWriter).writeErr = err
-	}
-	if err1 := f.Close(); err == nil {
-		err = err1
-	}
-	return err
-}
-
-type atomicFileWriter struct {
-	f        *os.File
-	fn       string
-	writeErr error
-	perm     os.FileMode
-}
-
-func (w *atomicFileWriter) Write(dt []byte) (int, error) {
-	n, err := w.f.Write(dt)
-	if err != nil {
-		w.writeErr = err
-	}
-	return n, err
-}
-
-func (w *atomicFileWriter) Close() (retErr error) {
-	defer func() {
-		if retErr != nil || w.writeErr != nil {
-			os.Remove(w.f.Name())
-		}
-	}()
-	if err := w.f.Sync(); err != nil {
-		w.f.Close()
-		return err
-	}
-	if err := w.f.Close(); err != nil {
-		return err
-	}
-	if err := os.Chmod(w.f.Name(), w.perm); err != nil {
-		return err
-	}
-	if w.writeErr == nil {
-		return os.Rename(w.f.Name(), w.fn)
-	}
-	return nil
-}
-
-// AtomicWriteSet is used to atomically write a set
-// of files and ensure they are visible at the same time.
-// Must be committed to a new directory.
-type AtomicWriteSet struct {
-	root string
-}
-
-// NewAtomicWriteSet creates a new atomic write set to
-// atomically create a set of files. The given directory
-// is used as the base directory for storing files before
-// commit. If no temporary directory is given the system
-// default is used.
-func NewAtomicWriteSet(tmpDir string) (*AtomicWriteSet, error) {
-	td, err := ioutil.TempDir(tmpDir, "write-set-")
-	if err != nil {
-		return nil, err
-	}
-
-	return &AtomicWriteSet{
-		root: td,
-	}, nil
-}
-
-// WriteFile writes a file to the set, guaranteeing the file
-// has been synced.
-func (ws *AtomicWriteSet) WriteFile(filename string, data []byte, perm os.FileMode) error {
-	f, err := ws.FileWriter(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
-	if err != nil {
-		return err
-	}
-	n, err := f.Write(data)
-	if err == nil && n < len(data) {
-		err = io.ErrShortWrite
-	}
-	if err1 := f.Close(); err == nil {
-		err = err1
-	}
-	return err
-}
-
-type syncFileCloser struct {
-	*os.File
-}
-
-func (w syncFileCloser) Close() error {
-	err := w.File.Sync()
-	if err1 := w.File.Close(); err == nil {
-		err = err1
-	}
-	return err
-}
-
-// FileWriter opens a file writer inside the set. The file
-// should be synced and closed before calling commit.
-func (ws *AtomicWriteSet) FileWriter(name string, flag int, perm os.FileMode) (io.WriteCloser, error) {
-	f, err := os.OpenFile(filepath.Join(ws.root, name), flag, perm)
-	if err != nil {
-		return nil, err
-	}
-	return syncFileCloser{f}, nil
-}
-
-// Cancel cancels the set and removes all temporary data
-// created in the set.
-func (ws *AtomicWriteSet) Cancel() error {
-	return os.RemoveAll(ws.root)
-}
-
-// Commit moves all created files to the target directory. The
-// target directory must not exist and the parent of the target
-// directory must exist.
-func (ws *AtomicWriteSet) Commit(target string) error {
-	return os.Rename(ws.root, target)
-}
-
-// String returns the location the set is writing to.
-func (ws *AtomicWriteSet) String() string {
-	return ws.root
-}

vendor/github.com/docker/docker/pkg/ioutils/multireader.go

@@ -1,223 +0,0 @@
-package ioutils
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-)
-
-type pos struct {
-	idx    int
-	offset int64
-}
-
-type multiReadSeeker struct {
-	readers []io.ReadSeeker
-	pos     *pos
-	posIdx  map[io.ReadSeeker]int
-}
-
-func (r *multiReadSeeker) Seek(offset int64, whence int) (int64, error) {
-	var tmpOffset int64
-	switch whence {
-	case os.SEEK_SET:
-		for i, rdr := range r.readers {
-			// get size of the current reader
-			s, err := rdr.Seek(0, os.SEEK_END)
-			if err != nil {
-				return -1, err
-			}
-
-			if offset > tmpOffset+s {
-				if i == len(r.readers)-1 {
-					rdrOffset := s + (offset - tmpOffset)
-					if _, err := rdr.Seek(rdrOffset, os.SEEK_SET); err != nil {
-						return -1, err
-					}
-					r.pos = &pos{i, rdrOffset}
-					return offset, nil
-				}
-
-				tmpOffset += s
-				continue
-			}
-
-			rdrOffset := offset - tmpOffset
-			idx := i
-
-			rdr.Seek(rdrOffset, os.SEEK_SET)
-			// make sure all following readers are at 0
-			for _, rdr := range r.readers[i+1:] {
-				rdr.Seek(0, os.SEEK_SET)
-			}
-
-			if rdrOffset == s && i != len(r.readers)-1 {
-				idx++
-				rdrOffset = 0
-			}
-			r.pos = &pos{idx, rdrOffset}
-			return offset, nil
-		}
-	case os.SEEK_END:
-		for _, rdr := range r.readers {
-			s, err := rdr.Seek(0, os.SEEK_END)
-			if err != nil {
-				return -1, err
-			}
-			tmpOffset += s
-		}
-		r.Seek(tmpOffset+offset, os.SEEK_SET)
-		return tmpOffset + offset, nil
-	case os.SEEK_CUR:
-		if r.pos == nil {
-			return r.Seek(offset, os.SEEK_SET)
-		}
-		// Just return the current offset
-		if offset == 0 {
-			return r.getCurOffset()
-		}
-
-		curOffset, err := r.getCurOffset()
-		if err != nil {
-			return -1, err
-		}
-		rdr, rdrOffset, err := r.getReaderForOffset(curOffset + offset)
-		if err != nil {
-			return -1, err
-		}
-
-		r.pos = &pos{r.posIdx[rdr], rdrOffset}
-		return curOffset + offset, nil
-	default:
-		return -1, fmt.Errorf("Invalid whence: %d", whence)
-	}
-
-	return -1, fmt.Errorf("Error seeking for whence: %d, offset: %d", whence, offset)
-}
-
-func (r *multiReadSeeker) getReaderForOffset(offset int64) (io.ReadSeeker, int64, error) {
-
-	var offsetTo int64
-
-	for _, rdr := range r.readers {
-		size, err := getReadSeekerSize(rdr)
-		if err != nil {
-			return nil, -1, err
-		}
-		if offsetTo+size > offset {
-			return rdr, offset - offsetTo, nil
-		}
-		if rdr == r.readers[len(r.readers)-1] {
-			return rdr, offsetTo + offset, nil
-		}
-		offsetTo += size
-	}
-
-	return nil, 0, nil
-}
-
-func (r *multiReadSeeker) getCurOffset() (int64, error) {
-	var totalSize int64
-	for _, rdr := range r.readers[:r.pos.idx+1] {
-		if r.posIdx[rdr] == r.pos.idx {
-			totalSize += r.pos.offset
-			break
-		}
-
-		size, err := getReadSeekerSize(rdr)
-		if err != nil {
-			return -1, fmt.Errorf("error getting seeker size: %v", err)
-		}
-		totalSize += size
-	}
-	return totalSize, nil
-}
-
-func (r *multiReadSeeker) getOffsetToReader(rdr io.ReadSeeker) (int64, error) {
-	var offset int64
-	for _, r := range r.readers {
-		if r == rdr {
-			break
-		}
-
-		size, err := getReadSeekerSize(rdr)
-		if err != nil {
-			return -1, err
-		}
-		offset += size
-	}
-	return offset, nil
-}
-
-func (r *multiReadSeeker) Read(b []byte) (int, error) {
-	if r.pos == nil {
-		r.pos = &pos{0, 0}
-	}
-
-	bLen := int64(len(b))
-	buf := bytes.NewBuffer(nil)
-	var rdr io.ReadSeeker
-
-	for _, rdr = range r.readers[r.pos.idx:] {
-		readBytes, err := io.CopyN(buf, rdr, bLen)
-		if err != nil && err != io.EOF {
-			return -1, err
-		}
-		bLen -= readBytes
-
-		if bLen == 0 {
-			break
-		}
-	}
-
-	rdrPos, err := rdr.Seek(0, os.SEEK_CUR)
-	if err != nil {
-		return -1, err
-	}
-	r.pos = &pos{r.posIdx[rdr], rdrPos}
-	return buf.Read(b)
-}
-
-func getReadSeekerSize(rdr io.ReadSeeker) (int64, error) {
-	// save the current position
-	pos, err := rdr.Seek(0, os.SEEK_CUR)
-	if err != nil {
-		return -1, err
-	}
-
-	// get the size
-	size, err := rdr.Seek(0, os.SEEK_END)
-	if err != nil {
-		return -1, err
-	}
-
-	// reset the position
-	if _, err := rdr.Seek(pos, os.SEEK_SET); err != nil {
-		return -1, err
-	}
-	return size, nil
-}
-
-// MultiReadSeeker returns a ReadSeeker that's the logical concatenation of the provided
-// input readseekers. After calling this method the initial position is set to the
-// beginning of the first ReadSeeker. At the end of a ReadSeeker, Read always advances
-// to the beginning of the next ReadSeeker and returns EOF at the end of the last ReadSeeker.
-// Seek can be used over the sum of lengths of all readseekers.
-//
-// When a MultiReadSeeker is used, no Read and Seek operations should be made on
-// its ReadSeeker components. Also, users should make no assumption on the state
-// of individual readseekers while the MultiReadSeeker is used.
-func MultiReadSeeker(readers ...io.ReadSeeker) io.ReadSeeker {
-	if len(readers) == 1 {
-		return readers[0]
-	}
-	idx := make(map[io.ReadSeeker]int)
-	for i, rdr := range readers {
-		idx[rdr] = i
-	}
-	return &multiReadSeeker{
-		readers: readers,
-		posIdx:  idx,
-	}
-}

vendor/github.com/docker/docker/pkg/ioutils/readers.go

@@ -1,154 +0,0 @@
-package ioutils
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"io"
-
-	"golang.org/x/net/context"
-)
-
-type readCloserWrapper struct {
-	io.Reader
-	closer func() error
-}
-
-func (r *readCloserWrapper) Close() error {
-	return r.closer()
-}
-
-// NewReadCloserWrapper returns a new io.ReadCloser.
-func NewReadCloserWrapper(r io.Reader, closer func() error) io.ReadCloser {
-	return &readCloserWrapper{
-		Reader: r,
-		closer: closer,
-	}
-}
-
-type readerErrWrapper struct {
-	reader io.Reader
-	closer func()
-}
-
-func (r *readerErrWrapper) Read(p []byte) (int, error) {
-	n, err := r.reader.Read(p)
-	if err != nil {
-		r.closer()
-	}
-	return n, err
-}
-
-// NewReaderErrWrapper returns a new io.Reader.
-func NewReaderErrWrapper(r io.Reader, closer func()) io.Reader {
-	return &readerErrWrapper{
-		reader: r,
-		closer: closer,
-	}
-}
-
-// HashData returns the sha256 sum of src.
-func HashData(src io.Reader) (string, error) {
-	h := sha256.New()
-	if _, err := io.Copy(h, src); err != nil {
-		return "", err
-	}
-	return "sha256:" + hex.EncodeToString(h.Sum(nil)), nil
-}
-
-// OnEOFReader wraps an io.ReadCloser and a function
-// the function will run at the end of file or close the file.
-type OnEOFReader struct {
-	Rc io.ReadCloser
-	Fn func()
-}
-
-func (r *OnEOFReader) Read(p []byte) (n int, err error) {
-	n, err = r.Rc.Read(p)
-	if err == io.EOF {
-		r.runFunc()
-	}
-	return
-}
-
-// Close closes the file and run the function.
-func (r *OnEOFReader) Close() error {
-	err := r.Rc.Close()
-	r.runFunc()
-	return err
-}
-
-func (r *OnEOFReader) runFunc() {
-	if fn := r.Fn; fn != nil {
-		fn()
-		r.Fn = nil
-	}
-}
-
-// cancelReadCloser wraps an io.ReadCloser with a context for cancelling read
-// operations.
-type cancelReadCloser struct {
-	cancel func()
-	pR     *io.PipeReader // Stream to read from
-	pW     *io.PipeWriter
-}
-
-// NewCancelReadCloser creates a wrapper that closes the ReadCloser when the
-// context is cancelled. The returned io.ReadCloser must be closed when it is
-// no longer needed.
-func NewCancelReadCloser(ctx context.Context, in io.ReadCloser) io.ReadCloser {
-	pR, pW := io.Pipe()
-
-	// Create a context used to signal when the pipe is closed
-	doneCtx, cancel := context.WithCancel(context.Background())
-
-	p := &cancelReadCloser{
-		cancel: cancel,
-		pR:     pR,
-		pW:     pW,
-	}
-
-	go func() {
-		_, err := io.Copy(pW, in)
-		select {
-		case <-ctx.Done():
-			// If the context was closed, p.closeWithError
-			// was already called. Calling it again would
-			// change the error that Read returns.
-		default:
-			p.closeWithError(err)
-		}
-		in.Close()
-	}()
-	go func() {
-		for {
-			select {
-			case <-ctx.Done():
-				p.closeWithError(ctx.Err())
-			case <-doneCtx.Done():
-				return
-			}
-		}
-	}()
-
-	return p
-}
-
-// Read wraps the Read method of the pipe that provides data from the wrapped
-// ReadCloser.
-func (p *cancelReadCloser) Read(buf []byte) (n int, err error) {
-	return p.pR.Read(buf)
-}
-
-// closeWithError closes the wrapper and its underlying reader. It will
-// cause future calls to Read to return err.
-func (p *cancelReadCloser) closeWithError(err error) {
-	p.pW.CloseWithError(err)
-	p.cancel()
-}
-
-// Close closes the wrapper its underlying reader. It will cause
-// future calls to Read to return io.EOF.
-func (p *cancelReadCloser) Close() error {
-	p.closeWithError(io.EOF)
-	return nil
-}

vendor/github.com/docker/docker/pkg/ioutils/temp_unix.go

@@ -1,10 +0,0 @@
-// +build !windows
-
-package ioutils
-
-import "io/ioutil"
-
-// TempDir on Unix systems is equivalent to ioutil.TempDir.
-func TempDir(dir, prefix string) (string, error) {
-	return ioutil.TempDir(dir, prefix)
-}

vendor/github.com/docker/docker/pkg/ioutils/temp_windows.go

@@ -1,18 +0,0 @@
-// +build windows
-
-package ioutils
-
-import (
-	"io/ioutil"
-
-	"github.com/docker/docker/pkg/longpath"
-)
-
-// TempDir is the equivalent of ioutil.TempDir, except that the result is in Windows longpath format.
-func TempDir(dir, prefix string) (string, error) {
-	tempDir, err := ioutil.TempDir(dir, prefix)
-	if err != nil {
-		return "", err
-	}
-	return longpath.AddPrefix(tempDir), nil
-}

vendor/github.com/docker/docker/pkg/ioutils/writeflusher.go

@@ -1,92 +0,0 @@
-package ioutils
-
-import (
-	"io"
-	"sync"
-)
-
-// WriteFlusher wraps the Write and Flush operation ensuring that every write
-// is a flush. In addition, the Close method can be called to intercept
-// Read/Write calls if the targets lifecycle has already ended.
-type WriteFlusher struct {
-	w           io.Writer
-	flusher     flusher
-	flushed     chan struct{}
-	flushedOnce sync.Once
-	closed      chan struct{}
-	closeLock   sync.Mutex
-}
-
-type flusher interface {
-	Flush()
-}
-
-var errWriteFlusherClosed = io.EOF
-
-func (wf *WriteFlusher) Write(b []byte) (n int, err error) {
-	select {
-	case <-wf.closed:
-		return 0, errWriteFlusherClosed
-	default:
-	}
-
-	n, err = wf.w.Write(b)
-	wf.Flush() // every write is a flush.
-	return n, err
-}
-
-// Flush the stream immediately.
-func (wf *WriteFlusher) Flush() {
-	select {
-	case <-wf.closed:
-		return
-	default:
-	}
-
-	wf.flushedOnce.Do(func() {
-		close(wf.flushed)
-	})
-	wf.flusher.Flush()
-}
-
-// Flushed returns the state of flushed.
-// If it's flushed, return true, or else it return false.
-func (wf *WriteFlusher) Flushed() bool {
-	// BUG(stevvooe): Remove this method. Its use is inherently racy. Seems to
-	// be used to detect whether or a response code has been issued or not.
-	// Another hook should be used instead.
-	var flushed bool
-	select {
-	case <-wf.flushed:
-		flushed = true
-	default:
-	}
-	return flushed
-}
-
-// Close closes the write flusher, disallowing any further writes to the
-// target. After the flusher is closed, all calls to write or flush will
-// result in an error.
-func (wf *WriteFlusher) Close() error {
-	wf.closeLock.Lock()
-	defer wf.closeLock.Unlock()
-
-	select {
-	case <-wf.closed:
-		return errWriteFlusherClosed
-	default:
-		close(wf.closed)
-	}
-	return nil
-}
-
-// NewWriteFlusher returns a new WriteFlusher.
-func NewWriteFlusher(w io.Writer) *WriteFlusher {
-	var fl flusher
-	if f, ok := w.(flusher); ok {
-		fl = f
-	} else {
-		fl = &NopFlusher{}
-	}
-	return &WriteFlusher{w: w, flusher: fl, closed: make(chan struct{}), flushed: make(chan struct{})}
-}

vendor/github.com/docker/docker/pkg/ioutils/writers.go

@@ -1,66 +0,0 @@
-package ioutils
-
-import "io"
-
-// NopWriter represents a type which write operation is nop.
-type NopWriter struct{}
-
-func (*NopWriter) Write(buf []byte) (int, error) {
-	return len(buf), nil
-}
-
-type nopWriteCloser struct {
-	io.Writer
-}
-
-func (w *nopWriteCloser) Close() error { return nil }
-
-// NopWriteCloser returns a nopWriteCloser.
-func NopWriteCloser(w io.Writer) io.WriteCloser {
-	return &nopWriteCloser{w}
-}
-
-// NopFlusher represents a type which flush operation is nop.
-type NopFlusher struct{}
-
-// Flush is a nop operation.
-func (f *NopFlusher) Flush() {}
-
-type writeCloserWrapper struct {
-	io.Writer
-	closer func() error
-}
-
-func (r *writeCloserWrapper) Close() error {
-	return r.closer()
-}
-
-// NewWriteCloserWrapper returns a new io.WriteCloser.
-func NewWriteCloserWrapper(r io.Writer, closer func() error) io.WriteCloser {
-	return &writeCloserWrapper{
-		Writer: r,
-		closer: closer,
-	}
-}
-
-// WriteCounter wraps a concrete io.Writer and hold a count of the number
-// of bytes written to the writer during a "session".
-// This can be convenient when write return is masked
-// (e.g., json.Encoder.Encode())
-type WriteCounter struct {
-	Count  int64
-	Writer io.Writer
-}
-
-// NewWriteCounter returns a new WriteCounter.
-func NewWriteCounter(w io.Writer) *WriteCounter {
-	return &WriteCounter{
-		Writer: w,
-	}
-}
-
-func (wc *WriteCounter) Write(p []byte) (count int, err error) {
-	count, err = wc.Writer.Write(p)
-	wc.Count += int64(count)
-	return
-}

vendor/github.com/docker/docker/pkg/longpath/longpath.go

@@ -1,26 +0,0 @@
-// longpath introduces some constants and helper functions for handling long paths
-// in Windows, which are expected to be prepended with `\\?\` and followed by either
-// a drive letter, a UNC server\share, or a volume identifier.
-
-package longpath
-
-import (
-	"strings"
-)
-
-// Prefix is the longpath prefix for Windows file paths.
-const Prefix = `\\?\`
-
-// AddPrefix will add the Windows long path prefix to the path provided if
-// it does not already have it.
-func AddPrefix(path string) string {
-	if !strings.HasPrefix(path, Prefix) {
-		if strings.HasPrefix(path, `\\`) {
-			// This is a UNC path, so we need to add 'UNC' to the path as well.
-			path = Prefix + `UNC` + path[1:]
-		} else {
-			path = Prefix + path
-		}
-	}
-	return path
-}

vendor/github.com/docker/docker/pkg/pools/pools.go

@@ -1,116 +0,0 @@
-// Package pools provides a collection of pools which provide various
-// data types with buffers. These can be used to lower the number of
-// memory allocations and reuse buffers.
-//
-// New pools should be added to this package to allow them to be
-// shared across packages.
-//
-// Utility functions which operate on pools should be added to this
-// package to allow them to be reused.
-package pools
-
-import (
-	"bufio"
-	"io"
-	"sync"
-
-	"github.com/docker/docker/pkg/ioutils"
-)
-
-var (
-	// BufioReader32KPool is a pool which returns bufio.Reader with a 32K buffer.
-	BufioReader32KPool = newBufioReaderPoolWithSize(buffer32K)
-	// BufioWriter32KPool is a pool which returns bufio.Writer with a 32K buffer.
-	BufioWriter32KPool = newBufioWriterPoolWithSize(buffer32K)
-)
-
-const buffer32K = 32 * 1024
-
-// BufioReaderPool is a bufio reader that uses sync.Pool.
-type BufioReaderPool struct {
-	pool sync.Pool
-}
-
-// newBufioReaderPoolWithSize is unexported because new pools should be
-// added here to be shared where required.
-func newBufioReaderPoolWithSize(size int) *BufioReaderPool {
-	return &BufioReaderPool{
-		pool: sync.Pool{
-			New: func() interface{} { return bufio.NewReaderSize(nil, size) },
-		},
-	}
-}
-
-// Get returns a bufio.Reader which reads from r. The buffer size is that of the pool.
-func (bufPool *BufioReaderPool) Get(r io.Reader) *bufio.Reader {
-	buf := bufPool.pool.Get().(*bufio.Reader)
-	buf.Reset(r)
-	return buf
-}
-
-// Put puts the bufio.Reader back into the pool.
-func (bufPool *BufioReaderPool) Put(b *bufio.Reader) {
-	b.Reset(nil)
-	bufPool.pool.Put(b)
-}
-
-// Copy is a convenience wrapper which uses a buffer to avoid allocation in io.Copy.
-func Copy(dst io.Writer, src io.Reader) (written int64, err error) {
-	buf := BufioReader32KPool.Get(src)
-	written, err = io.Copy(dst, buf)
-	BufioReader32KPool.Put(buf)
-	return
-}
-
-// NewReadCloserWrapper returns a wrapper which puts the bufio.Reader back
-// into the pool and closes the reader if it's an io.ReadCloser.
-func (bufPool *BufioReaderPool) NewReadCloserWrapper(buf *bufio.Reader, r io.Reader) io.ReadCloser {
-	return ioutils.NewReadCloserWrapper(r, func() error {
-		if readCloser, ok := r.(io.ReadCloser); ok {
-			readCloser.Close()
-		}
-		bufPool.Put(buf)
-		return nil
-	})
-}
-
-// BufioWriterPool is a bufio writer that uses sync.Pool.
-type BufioWriterPool struct {
-	pool sync.Pool
-}
-
-// newBufioWriterPoolWithSize is unexported because new pools should be
-// added here to be shared where required.
-func newBufioWriterPoolWithSize(size int) *BufioWriterPool {
-	return &BufioWriterPool{
-		pool: sync.Pool{
-			New: func() interface{} { return bufio.NewWriterSize(nil, size) },
-		},
-	}
-}
-
-// Get returns a bufio.Writer which writes to w. The buffer size is that of the pool.
-func (bufPool *BufioWriterPool) Get(w io.Writer) *bufio.Writer {
-	buf := bufPool.pool.Get().(*bufio.Writer)
-	buf.Reset(w)
-	return buf
-}
-
-// Put puts the bufio.Writer back into the pool.
-func (bufPool *BufioWriterPool) Put(b *bufio.Writer) {
-	b.Reset(nil)
-	bufPool.pool.Put(b)
-}
-
-// NewWriteCloserWrapper returns a wrapper which puts the bufio.Writer back
-// into the pool and closes the writer if it's an io.Writecloser.
-func (bufPool *BufioWriterPool) NewWriteCloserWrapper(buf *bufio.Writer, w io.Writer) io.WriteCloser {
-	return ioutils.NewWriteCloserWrapper(w, func() error {
-		buf.Flush()
-		if writeCloser, ok := w.(io.WriteCloser); ok {
-			writeCloser.Close()
-		}
-		bufPool.Put(buf)
-		return nil
-	})
-}

vendor/github.com/docker/docker/pkg/promise/promise.go

@@ -1,11 +0,0 @@
-package promise
-
-// Go is a basic promise implementation: it wraps calls a function in a goroutine,
-// and returns a channel which will later return the function's return value.
-func Go(f func() error) chan error {
-	ch := make(chan error, 1)
-	go func() {
-		ch <- f()
-	}()
-	return ch
-}

vendor/github.com/docker/docker/pkg/system/chtimes.go

@@ -1,52 +0,0 @@
-package system
-
-import (
-	"os"
-	"syscall"
-	"time"
-	"unsafe"
-)
-
-var (
-	maxTime time.Time
-)
-
-func init() {
-	if unsafe.Sizeof(syscall.Timespec{}.Nsec) == 8 {
-		// This is a 64 bit timespec
-		// os.Chtimes limits time to the following
-		maxTime = time.Unix(0, 1<<63-1)
-	} else {
-		// This is a 32 bit timespec
-		maxTime = time.Unix(1<<31-1, 0)
-	}
-}
-
-// Chtimes changes the access time and modified time of a file at the given path
-func Chtimes(name string, atime time.Time, mtime time.Time) error {
-	unixMinTime := time.Unix(0, 0)
-	unixMaxTime := maxTime
-
-	// If the modified time is prior to the Unix Epoch, or after the
-	// end of Unix Time, os.Chtimes has undefined behavior
-	// default to Unix Epoch in this case, just in case
-
-	if atime.Before(unixMinTime) || atime.After(unixMaxTime) {
-		atime = unixMinTime
-	}
-
-	if mtime.Before(unixMinTime) || mtime.After(unixMaxTime) {
-		mtime = unixMinTime
-	}
-
-	if err := os.Chtimes(name, atime, mtime); err != nil {
-		return err
-	}
-
-	// Take platform specific action for setting create time.
-	if err := setCTime(name, mtime); err != nil {
-		return err
-	}
-
-	return nil
-}

vendor/github.com/docker/docker/pkg/system/chtimes_unix.go

@@ -1,14 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"time"
-)
-
-//setCTime will set the create time on a file. On Unix, the create
-//time is updated as a side effect of setting the modified time, so
-//no action is required.
-func setCTime(path string, ctime time.Time) error {
-	return nil
-}

vendor/github.com/docker/docker/pkg/system/chtimes_windows.go

@@ -1,27 +0,0 @@
-// +build windows
-
-package system
-
-import (
-	"syscall"
-	"time"
-)
-
-//setCTime will set the create time on a file. On Windows, this requires
-//calling SetFileTime and explicitly including the create time.
-func setCTime(path string, ctime time.Time) error {
-	ctimespec := syscall.NsecToTimespec(ctime.UnixNano())
-	pathp, e := syscall.UTF16PtrFromString(path)
-	if e != nil {
-		return e
-	}
-	h, e := syscall.CreateFile(pathp,
-		syscall.FILE_WRITE_ATTRIBUTES, syscall.FILE_SHARE_WRITE, nil,
-		syscall.OPEN_EXISTING, syscall.FILE_FLAG_BACKUP_SEMANTICS, 0)
-	if e != nil {
-		return e
-	}
-	defer syscall.Close(h)
-	c := syscall.NsecToFiletime(syscall.TimespecToNsec(ctimespec))
-	return syscall.SetFileTime(h, &c, nil, nil)
-}

vendor/github.com/docker/docker/pkg/system/errors.go

@@ -1,10 +0,0 @@
-package system
-
-import (
-	"errors"
-)
-
-var (
-	// ErrNotSupportedPlatform means the platform is not supported.
-	ErrNotSupportedPlatform = errors.New("platform and architecture is not supported")
-)

vendor/github.com/docker/docker/pkg/system/events_windows.go

@@ -1,85 +0,0 @@
-package system
-
-// This file implements syscalls for Win32 events which are not implemented
-// in golang.
-
-import (
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var (
-	procCreateEvent = modkernel32.NewProc("CreateEventW")
-	procOpenEvent   = modkernel32.NewProc("OpenEventW")
-	procSetEvent    = modkernel32.NewProc("SetEvent")
-	procResetEvent  = modkernel32.NewProc("ResetEvent")
-	procPulseEvent  = modkernel32.NewProc("PulseEvent")
-)
-
-// CreateEvent implements win32 CreateEventW func in golang. It will create an event object.
-func CreateEvent(eventAttributes *syscall.SecurityAttributes, manualReset bool, initialState bool, name string) (handle syscall.Handle, err error) {
-	namep, _ := syscall.UTF16PtrFromString(name)
-	var _p1 uint32
-	if manualReset {
-		_p1 = 1
-	}
-	var _p2 uint32
-	if initialState {
-		_p2 = 1
-	}
-	r0, _, e1 := procCreateEvent.Call(uintptr(unsafe.Pointer(eventAttributes)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(namep)))
-	use(unsafe.Pointer(namep))
-	handle = syscall.Handle(r0)
-	if handle == syscall.InvalidHandle {
-		err = e1
-	}
-	return
-}
-
-// OpenEvent implements win32 OpenEventW func in golang. It opens an event object.
-func OpenEvent(desiredAccess uint32, inheritHandle bool, name string) (handle syscall.Handle, err error) {
-	namep, _ := syscall.UTF16PtrFromString(name)
-	var _p1 uint32
-	if inheritHandle {
-		_p1 = 1
-	}
-	r0, _, e1 := procOpenEvent.Call(uintptr(desiredAccess), uintptr(_p1), uintptr(unsafe.Pointer(namep)))
-	use(unsafe.Pointer(namep))
-	handle = syscall.Handle(r0)
-	if handle == syscall.InvalidHandle {
-		err = e1
-	}
-	return
-}
-
-// SetEvent implements win32 SetEvent func in golang.
-func SetEvent(handle syscall.Handle) (err error) {
-	return setResetPulse(handle, procSetEvent)
-}
-
-// ResetEvent implements win32 ResetEvent func in golang.
-func ResetEvent(handle syscall.Handle) (err error) {
-	return setResetPulse(handle, procResetEvent)
-}
-
-// PulseEvent implements win32 PulseEvent func in golang.
-func PulseEvent(handle syscall.Handle) (err error) {
-	return setResetPulse(handle, procPulseEvent)
-}
-
-func setResetPulse(handle syscall.Handle, proc *windows.LazyProc) (err error) {
-	r0, _, _ := proc.Call(uintptr(handle))
-	if r0 != 0 {
-		err = syscall.Errno(r0)
-	}
-	return
-}
-
-var temp unsafe.Pointer
-
-// use ensures a variable is kept alive without the GC freeing while still needed
-func use(p unsafe.Pointer) {
-	temp = p
-}

vendor/github.com/docker/docker/pkg/system/exitcode.go

@@ -1,33 +0,0 @@
-package system
-
-import (
-	"fmt"
-	"os/exec"
-	"syscall"
-)
-
-// GetExitCode returns the ExitStatus of the specified error if its type is
-// exec.ExitError, returns 0 and an error otherwise.
-func GetExitCode(err error) (int, error) {
-	exitCode := 0
-	if exiterr, ok := err.(*exec.ExitError); ok {
-		if procExit, ok := exiterr.Sys().(syscall.WaitStatus); ok {
-			return procExit.ExitStatus(), nil
-		}
-	}
-	return exitCode, fmt.Errorf("failed to get exit code")
-}
-
-// ProcessExitCode process the specified error and returns the exit status code
-// if the error was of type exec.ExitError, returns nothing otherwise.
-func ProcessExitCode(err error) (exitCode int) {
-	if err != nil {
-		var exiterr error
-		if exitCode, exiterr = GetExitCode(err); exiterr != nil {
-			// TODO: Fix this so we check the error's text.
-			// we've failed to retrieve exit code, so we set it to 127
-			exitCode = 127
-		}
-	}
-	return
-}

vendor/github.com/docker/docker/pkg/system/filesys.go

@@ -1,54 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"os"
-	"path/filepath"
-)
-
-// MkdirAllWithACL is a wrapper for MkdirAll that creates a directory
-// ACL'd for Builtin Administrators and Local System.
-func MkdirAllWithACL(path string, perm os.FileMode) error {
-	return MkdirAll(path, perm)
-}
-
-// MkdirAll creates a directory named path along with any necessary parents,
-// with permission specified by attribute perm for all dir created.
-func MkdirAll(path string, perm os.FileMode) error {
-	return os.MkdirAll(path, perm)
-}
-
-// IsAbs is a platform-specific wrapper for filepath.IsAbs.
-func IsAbs(path string) bool {
-	return filepath.IsAbs(path)
-}
-
-// The functions below here are wrappers for the equivalents in the os package.
-// They are passthrough on Unix platforms, and only relevant on Windows.
-
-// CreateSequential creates the named file with mode 0666 (before umask), truncating
-// it if it already exists. If successful, methods on the returned
-// File can be used for I/O; the associated file descriptor has mode
-// O_RDWR.
-// If there is an error, it will be of type *PathError.
-func CreateSequential(name string) (*os.File, error) {
-	return os.Create(name)
-}
-
-// OpenSequential opens the named file for reading. If successful, methods on
-// the returned file can be used for reading; the associated file
-// descriptor has mode O_RDONLY.
-// If there is an error, it will be of type *PathError.
-func OpenSequential(name string) (*os.File, error) {
-	return os.Open(name)
-}
-
-// OpenFileSequential is the generalized open call; most users will use Open
-// or Create instead. It opens the named file with specified flag
-// (O_RDONLY etc.) and perm, (0666 etc.) if applicable. If successful,
-// methods on the returned File can be used for I/O.
-// If there is an error, it will be of type *PathError.
-func OpenFileSequential(name string, flag int, perm os.FileMode) (*os.File, error) {
-	return os.OpenFile(name, flag, perm)
-}

vendor/github.com/docker/docker/pkg/system/lstat.go

@@ -1,19 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"syscall"
-)
-
-// Lstat takes a path to a file and returns
-// a system.StatT type pertaining to that file.
-//
-// Throws an error if the file does not exist
-func Lstat(path string) (*StatT, error) {
-	s := &syscall.Stat_t{}
-	if err := syscall.Lstat(path, s); err != nil {
-		return nil, err
-	}
-	return fromStatT(s)
-}

vendor/github.com/docker/docker/pkg/system/lstat_windows.go

@@ -1,25 +0,0 @@
-// +build windows
-
-package system
-
-import (
-	"os"
-)
-
-// Lstat calls os.Lstat to get a fileinfo interface back.
-// This is then copied into our own locally defined structure.
-// Note the Linux version uses fromStatT to do the copy back,
-// but that not strictly necessary when already in an OS specific module.
-func Lstat(path string) (*StatT, error) {
-	fi, err := os.Lstat(path)
-	if err != nil {
-		return nil, err
-	}
-
-	return &StatT{
-		name:    fi.Name(),
-		size:    fi.Size(),
-		mode:    fi.Mode(),
-		modTime: fi.ModTime(),
-		isDir:   fi.IsDir()}, nil
-}

vendor/github.com/docker/docker/pkg/system/meminfo.go

@@ -1,17 +0,0 @@
-package system
-
-// MemInfo contains memory statistics of the host system.
-type MemInfo struct {
-	// Total usable RAM (i.e. physical RAM minus a few reserved bits and the
-	// kernel binary code).
-	MemTotal int64
-
-	// Amount of free memory.
-	MemFree int64
-
-	// Total amount of swap space available.
-	SwapTotal int64
-
-	// Amount of swap space that is currently unused.
-	SwapFree int64
-}

vendor/github.com/docker/docker/pkg/system/meminfo_linux.go

@@ -1,65 +0,0 @@
-package system
-
-import (
-	"bufio"
-	"io"
-	"os"
-	"strconv"
-	"strings"
-
-	"github.com/docker/go-units"
-)
-
-// ReadMemInfo retrieves memory statistics of the host system and returns a
-// MemInfo type.
-func ReadMemInfo() (*MemInfo, error) {
-	file, err := os.Open("/proc/meminfo")
-	if err != nil {
-		return nil, err
-	}
-	defer file.Close()
-	return parseMemInfo(file)
-}
-
-// parseMemInfo parses the /proc/meminfo file into
-// a MemInfo object given an io.Reader to the file.
-// Throws error if there are problems reading from the file
-func parseMemInfo(reader io.Reader) (*MemInfo, error) {
-	meminfo := &MemInfo{}
-	scanner := bufio.NewScanner(reader)
-	for scanner.Scan() {
-		// Expected format: ["MemTotal:", "1234", "kB"]
-		parts := strings.Fields(scanner.Text())
-
-		// Sanity checks: Skip malformed entries.
-		if len(parts) < 3 || parts[2] != "kB" {
-			continue
-		}
-
-		// Convert to bytes.
-		size, err := strconv.Atoi(parts[1])
-		if err != nil {
-			continue
-		}
-		bytes := int64(size) * units.KiB
-
-		switch parts[0] {
-		case "MemTotal:":
-			meminfo.MemTotal = bytes
-		case "MemFree:":
-			meminfo.MemFree = bytes
-		case "SwapTotal:":
-			meminfo.SwapTotal = bytes
-		case "SwapFree:":
-			meminfo.SwapFree = bytes
-		}
-
-	}
-
-	// Handle errors that may have occurred during the reading of the file.
-	if err := scanner.Err(); err != nil {
-		return nil, err
-	}
-
-	return meminfo, nil
-}

vendor/github.com/docker/docker/pkg/system/meminfo_solaris.go

@@ -1,128 +0,0 @@
-// +build solaris,cgo
-
-package system
-
-import (
-	"fmt"
-	"unsafe"
-)
-
-// #cgo LDFLAGS: -lkstat
-// #include <unistd.h>
-// #include <stdlib.h>
-// #include <stdio.h>
-// #include <kstat.h>
-// #include <sys/swap.h>
-// #include <sys/param.h>
-// struct swaptable *allocSwaptable(int num) {
-//	struct swaptable *st;
-//	struct swapent *swapent;
-// 	st = (struct swaptable *)malloc(num * sizeof(swapent_t) + sizeof (int));
-//	swapent = st->swt_ent;
-//	for (int i = 0; i < num; i++,swapent++) {
-//		swapent->ste_path = (char *)malloc(MAXPATHLEN * sizeof (char));
-//	}
-//	st->swt_n = num;
-//	return st;
-//}
-// void freeSwaptable (struct swaptable *st) {
-//	struct swapent *swapent = st->swt_ent;
-//	for (int i = 0; i < st->swt_n; i++,swapent++) {
-//		free(swapent->ste_path);
-//	}
-//	free(st);
-// }
-// swapent_t getSwapEnt(swapent_t *ent, int i) {
-//	return ent[i];
-// }
-// int64_t getPpKernel() {
-//	int64_t pp_kernel = 0;
-//	kstat_ctl_t *ksc;
-//	kstat_t *ks;
-//	kstat_named_t *knp;
-//	kid_t kid;
-//
-//	if ((ksc = kstat_open()) == NULL) {
-//		return -1;
-//	}
-//	if ((ks = kstat_lookup(ksc, "unix", 0, "system_pages")) == NULL) {
-//		return -1;
-//	}
-//	if (((kid = kstat_read(ksc, ks, NULL)) == -1) ||
-//	    ((knp = kstat_data_lookup(ks, "pp_kernel")) == NULL)) {
-//		return -1;
-//	}
-//	switch (knp->data_type) {
-//	case KSTAT_DATA_UINT64:
-//		pp_kernel = knp->value.ui64;
-//		break;
-//	case KSTAT_DATA_UINT32:
-//		pp_kernel = knp->value.ui32;
-//		break;
-//	}
-//	pp_kernel *= sysconf(_SC_PAGESIZE);
-//	return (pp_kernel > 0 ? pp_kernel : -1);
-// }
-import "C"
-
-// Get the system memory info using sysconf same as prtconf
-func getTotalMem() int64 {
-	pagesize := C.sysconf(C._SC_PAGESIZE)
-	npages := C.sysconf(C._SC_PHYS_PAGES)
-	return int64(pagesize * npages)
-}
-
-func getFreeMem() int64 {
-	pagesize := C.sysconf(C._SC_PAGESIZE)
-	npages := C.sysconf(C._SC_AVPHYS_PAGES)
-	return int64(pagesize * npages)
-}
-
-// ReadMemInfo retrieves memory statistics of the host system and returns a
-//  MemInfo type.
-func ReadMemInfo() (*MemInfo, error) {
-
-	ppKernel := C.getPpKernel()
-	MemTotal := getTotalMem()
-	MemFree := getFreeMem()
-	SwapTotal, SwapFree, err := getSysSwap()
-
-	if ppKernel < 0 || MemTotal < 0 || MemFree < 0 || SwapTotal < 0 ||
-		SwapFree < 0 {
-		return nil, fmt.Errorf("error getting system memory info %v\n", err)
-	}
-
-	meminfo := &MemInfo{}
-	// Total memory is total physical memory less than memory locked by kernel
-	meminfo.MemTotal = MemTotal - int64(ppKernel)
-	meminfo.MemFree = MemFree
-	meminfo.SwapTotal = SwapTotal
-	meminfo.SwapFree = SwapFree
-
-	return meminfo, nil
-}
-
-func getSysSwap() (int64, int64, error) {
-	var tSwap int64
-	var fSwap int64
-	var diskblksPerPage int64
-	num, err := C.swapctl(C.SC_GETNSWP, nil)
-	if err != nil {
-		return -1, -1, err
-	}
-	st := C.allocSwaptable(num)
-	_, err = C.swapctl(C.SC_LIST, unsafe.Pointer(st))
-	if err != nil {
-		C.freeSwaptable(st)
-		return -1, -1, err
-	}
-
-	diskblksPerPage = int64(C.sysconf(C._SC_PAGESIZE) >> C.DEV_BSHIFT)
-	for i := 0; i < int(num); i++ {
-		swapent := C.getSwapEnt(&st.swt_ent[0], C.int(i))
-		tSwap += int64(swapent.ste_pages) * diskblksPerPage
-		fSwap += int64(swapent.ste_free) * diskblksPerPage
-	}
-	C.freeSwaptable(st)
-	return tSwap, fSwap, nil
-}

vendor/github.com/docker/docker/pkg/system/meminfo_unsupported.go

@@ -1,8 +0,0 @@
-// +build !linux,!windows,!solaris
-
-package system
-
-// ReadMemInfo is not supported on platforms other than linux and windows.
-func ReadMemInfo() (*MemInfo, error) {
-	return nil, ErrNotSupportedPlatform
-}

vendor/github.com/docker/docker/pkg/system/meminfo_windows.go

@@ -1,45 +0,0 @@
-package system
-
-import (
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var (
-	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
-
-	procGlobalMemoryStatusEx = modkernel32.NewProc("GlobalMemoryStatusEx")
-)
-
-// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx
-// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770(v=vs.85).aspx
-type memorystatusex struct {
-	dwLength                uint32
-	dwMemoryLoad            uint32
-	ullTotalPhys            uint64
-	ullAvailPhys            uint64
-	ullTotalPageFile        uint64
-	ullAvailPageFile        uint64
-	ullTotalVirtual         uint64
-	ullAvailVirtual         uint64
-	ullAvailExtendedVirtual uint64
-}
-
-// ReadMemInfo retrieves memory statistics of the host system and returns a
-//  MemInfo type.
-func ReadMemInfo() (*MemInfo, error) {
-	msi := &memorystatusex{
-		dwLength: 64,
-	}
-	r1, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(msi)))
-	if r1 == 0 {
-		return &MemInfo{}, nil
-	}
-	return &MemInfo{
-		MemTotal:  int64(msi.ullTotalPhys),
-		MemFree:   int64(msi.ullAvailPhys),
-		SwapTotal: int64(msi.ullTotalPageFile),
-		SwapFree:  int64(msi.ullAvailPageFile),
-	}, nil
-}

vendor/github.com/docker/docker/pkg/system/mknod.go

@@ -1,22 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"syscall"
-)
-
-// Mknod creates a filesystem node (file, device special file or named pipe) named path
-// with attributes specified by mode and dev.
-func Mknod(path string, mode uint32, dev int) error {
-	return syscall.Mknod(path, mode, dev)
-}
-
-// Mkdev is used to build the value of linux devices (in /dev/) which specifies major
-// and minor number of the newly created device special file.
-// Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes.
-// They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major,
-// then the top 12 bits of the minor.
-func Mkdev(major int64, minor int64) uint32 {
-	return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff))
-}

vendor/github.com/docker/docker/pkg/system/mknod_windows.go

@@ -1,13 +0,0 @@
-// +build windows
-
-package system
-
-// Mknod is not implemented on Windows.
-func Mknod(path string, mode uint32, dev int) error {
-	return ErrNotSupportedPlatform
-}
-
-// Mkdev is not implemented on Windows.
-func Mkdev(major int64, minor int64) uint32 {
-	panic("Mkdev not implemented on Windows.")
-}

vendor/github.com/docker/docker/pkg/system/path_unix.go

@@ -1,14 +0,0 @@
-// +build !windows
-
-package system
-
-// DefaultPathEnv is unix style list of directories to search for
-// executables. Each directory is separated from the next by a colon
-// ':' character .
-const DefaultPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
-
-// CheckSystemDriveAndRemoveDriveLetter verifies that a path, if it includes a drive letter,
-// is the system drive. This is a no-op on Linux.
-func CheckSystemDriveAndRemoveDriveLetter(path string) (string, error) {
-	return path, nil
-}

vendor/github.com/docker/docker/pkg/system/path_windows.go

@@ -1,37 +0,0 @@
-// +build windows
-
-package system
-
-import (
-	"fmt"
-	"path/filepath"
-	"strings"
-)
-
-// DefaultPathEnv is deliberately empty on Windows as the default path will be set by
-// the container. Docker has no context of what the default path should be.
-const DefaultPathEnv = ""
-
-// CheckSystemDriveAndRemoveDriveLetter verifies and manipulates a Windows path.
-// This is used, for example, when validating a user provided path in docker cp.
-// If a drive letter is supplied, it must be the system drive. The drive letter
-// is always removed. Also, it translates it to OS semantics (IOW / to \). We
-// need the path in this syntax so that it can ultimately be contatenated with
-// a Windows long-path which doesn't support drive-letters. Examples:
-// C:			--> Fail
-// C:\			--> \
-// a			--> a
-// /a			--> \a
-// d:\			--> Fail
-func CheckSystemDriveAndRemoveDriveLetter(path string) (string, error) {
-	if len(path) == 2 && string(path[1]) == ":" {
-		return "", fmt.Errorf("No relative path specified in %q", path)
-	}
-	if !filepath.IsAbs(path) || len(path) < 2 {
-		return filepath.FromSlash(path), nil
-	}
-	if string(path[1]) == ":" && !strings.EqualFold(string(path[0]), "c") {
-		return "", fmt.Errorf("The specified path is not on the system drive (C:)")
-	}
-	return filepath.FromSlash(path[2:]), nil
-}

vendor/github.com/docker/docker/pkg/system/stat.go

@@ -1,53 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"syscall"
-)
-
-// StatT type contains status of a file. It contains metadata
-// like permission, owner, group, size, etc about a file.
-type StatT struct {
-	mode uint32
-	uid  uint32
-	gid  uint32
-	rdev uint64
-	size int64
-	mtim syscall.Timespec
-}
-
-// Mode returns file's permission mode.
-func (s StatT) Mode() uint32 {
-	return s.mode
-}
-
-// UID returns file's user id of owner.
-func (s StatT) UID() uint32 {
-	return s.uid
-}
-
-// GID returns file's group id of owner.
-func (s StatT) GID() uint32 {
-	return s.gid
-}
-
-// Rdev returns file's device ID (if it's special file).
-func (s StatT) Rdev() uint64 {
-	return s.rdev
-}
-
-// Size returns file's size.
-func (s StatT) Size() int64 {
-	return s.size
-}
-
-// Mtim returns file's last modification time.
-func (s StatT) Mtim() syscall.Timespec {
-	return s.mtim
-}
-
-// GetLastModification returns file's last modification time.
-func (s StatT) GetLastModification() syscall.Timespec {
-	return s.Mtim()
-}

vendor/github.com/docker/docker/pkg/system/stat_darwin.go

@@ -1,32 +0,0 @@
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT creates a system.StatT type from a syscall.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: uint32(s.Mode),
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: uint64(s.Rdev),
-		mtim: s.Mtimespec}, nil
-}
-
-// FromStatT loads a system.StatT from a syscall.Stat_t.
-func FromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return fromStatT(s)
-}
-
-// Stat takes a path to a file and returns
-// a system.StatT type pertaining to that file.
-//
-// Throws an error if the file does not exist
-func Stat(path string) (*StatT, error) {
-	s := &syscall.Stat_t{}
-	if err := syscall.Stat(path, s); err != nil {
-		return nil, err
-	}
-	return fromStatT(s)
-}

vendor/github.com/docker/docker/pkg/system/stat_freebsd.go

@@ -1,27 +0,0 @@
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT converts a syscall.Stat_t type to a system.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: uint32(s.Mode),
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: uint64(s.Rdev),
-		mtim: s.Mtimespec}, nil
-}
-
-// Stat takes a path to a file and returns
-// a system.Stat_t type pertaining to that file.
-//
-// Throws an error if the file does not exist
-func Stat(path string) (*StatT, error) {
-	s := &syscall.Stat_t{}
-	if err := syscall.Stat(path, s); err != nil {
-		return nil, err
-	}
-	return fromStatT(s)
-}

vendor/github.com/docker/docker/pkg/system/stat_linux.go

@@ -1,33 +0,0 @@
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT converts a syscall.Stat_t type to a system.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: s.Mode,
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: s.Rdev,
-		mtim: s.Mtim}, nil
-}
-
-// FromStatT exists only on linux, and loads a system.StatT from a
-// syscal.Stat_t.
-func FromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return fromStatT(s)
-}
-
-// Stat takes a path to a file and returns
-// a system.StatT type pertaining to that file.
-//
-// Throws an error if the file does not exist
-func Stat(path string) (*StatT, error) {
-	s := &syscall.Stat_t{}
-	if err := syscall.Stat(path, s); err != nil {
-		return nil, err
-	}
-	return fromStatT(s)
-}

vendor/github.com/docker/docker/pkg/system/stat_openbsd.go

@@ -1,15 +0,0 @@
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT creates a system.StatT type from a syscall.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: uint32(s.Mode),
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: uint64(s.Rdev),
-		mtim: s.Mtim}, nil
-}

vendor/github.com/docker/docker/pkg/system/stat_solaris.go

@@ -1,34 +0,0 @@
-// +build solaris
-
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT creates a system.StatT type from a syscall.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: uint32(s.Mode),
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: uint64(s.Rdev),
-		mtim: s.Mtim}, nil
-}
-
-// FromStatT loads a system.StatT from a syscal.Stat_t.
-func FromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return fromStatT(s)
-}
-
-// Stat takes a path to a file and returns
-// a system.StatT type pertaining to that file.
-//
-// Throws an error if the file does not exist
-func Stat(path string) (*StatT, error) {
-	s := &syscall.Stat_t{}
-	if err := syscall.Stat(path, s); err != nil {
-		return nil, err
-	}
-	return fromStatT(s)
-}

vendor/github.com/docker/docker/pkg/system/stat_unsupported.go

@@ -1,17 +0,0 @@
-// +build !linux,!windows,!freebsd,!solaris,!openbsd,!darwin
-
-package system
-
-import (
-	"syscall"
-)
-
-// fromStatT creates a system.StatT type from a syscall.Stat_t type
-func fromStatT(s *syscall.Stat_t) (*StatT, error) {
-	return &StatT{size: s.Size,
-		mode: uint32(s.Mode),
-		uid:  s.Uid,
-		gid:  s.Gid,
-		rdev: uint64(s.Rdev),
-		mtim: s.Mtimespec}, nil
-}

vendor/github.com/docker/docker/pkg/system/stat_windows.go

@@ -1,43 +0,0 @@
-// +build windows
-
-package system
-
-import (
-	"os"
-	"time"
-)
-
-// StatT type contains status of a file. It contains metadata
-// like name, permission, size, etc about a file.
-type StatT struct {
-	name    string
-	size    int64
-	mode    os.FileMode
-	modTime time.Time
-	isDir   bool
-}
-
-// Name returns file's name.
-func (s StatT) Name() string {
-	return s.name
-}
-
-// Size returns file's size.
-func (s StatT) Size() int64 {
-	return s.size
-}
-
-// Mode returns file's permission mode.
-func (s StatT) Mode() os.FileMode {
-	return s.mode
-}
-
-// ModTime returns file's last modification time.
-func (s StatT) ModTime() time.Time {
-	return s.modTime
-}
-
-// IsDir returns whether file is actually a directory.
-func (s StatT) IsDir() bool {
-	return s.isDir
-}

vendor/github.com/docker/docker/pkg/system/syscall_unix.go

@@ -1,17 +0,0 @@
-// +build linux freebsd
-
-package system
-
-import "syscall"
-
-// Unmount is a platform-specific helper function to call
-// the unmount syscall.
-func Unmount(dest string) error {
-	return syscall.Unmount(dest, 0)
-}
-
-// CommandLineToArgv should not be used on Unix.
-// It simply returns commandLine in the only element in the returned array.
-func CommandLineToArgv(commandLine string) ([]string, error) {
-	return []string{commandLine}, nil
-}

vendor/github.com/docker/docker/pkg/system/syscall_windows.go

@@ -1,105 +0,0 @@
-package system
-
-import (
-	"syscall"
-	"unsafe"
-
-	"github.com/Sirupsen/logrus"
-)
-
-var (
-	ntuserApiset      = syscall.NewLazyDLL("ext-ms-win-ntuser-window-l1-1-0")
-	procGetVersionExW = modkernel32.NewProc("GetVersionExW")
-)
-
-// OSVersion is a wrapper for Windows version information
-// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx
-type OSVersion struct {
-	Version      uint32
-	MajorVersion uint8
-	MinorVersion uint8
-	Build        uint16
-}
-
-// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724833(v=vs.85).aspx
-type osVersionInfoEx struct {
-	OSVersionInfoSize uint32
-	MajorVersion      uint32
-	MinorVersion      uint32
-	BuildNumber       uint32
-	PlatformID        uint32
-	CSDVersion        [128]uint16
-	ServicePackMajor  uint16
-	ServicePackMinor  uint16
-	SuiteMask         uint16
-	ProductType       byte
-	Reserve           byte
-}
-
-// GetOSVersion gets the operating system version on Windows. Note that
-// docker.exe must be manifested to get the correct version information.
-func GetOSVersion() OSVersion {
-	var err error
-	osv := OSVersion{}
-	osv.Version, err = syscall.GetVersion()
-	if err != nil {
-		// GetVersion never fails.
-		panic(err)
-	}
-	osv.MajorVersion = uint8(osv.Version & 0xFF)
-	osv.MinorVersion = uint8(osv.Version >> 8 & 0xFF)
-	osv.Build = uint16(osv.Version >> 16)
-	return osv
-}
-
-// IsWindowsClient returns true if the SKU is client
-// @engine maintainers - this function should not be removed or modified as it
-// is used to enforce licensing restrictions on Windows.
-func IsWindowsClient() bool {
-	osviex := &osVersionInfoEx{OSVersionInfoSize: 284}
-	r1, _, err := procGetVersionExW.Call(uintptr(unsafe.Pointer(osviex)))
-	if r1 == 0 {
-		logrus.Warnf("GetVersionExW failed - assuming server SKU: %v", err)
-		return false
-	}
-	const verNTWorkstation = 0x00000001
-	return osviex.ProductType == verNTWorkstation
-}
-
-// Unmount is a platform-specific helper function to call
-// the unmount syscall. Not supported on Windows
-func Unmount(dest string) error {
-	return nil
-}
-
-// CommandLineToArgv wraps the Windows syscall to turn a commandline into an argument array.
-func CommandLineToArgv(commandLine string) ([]string, error) {
-	var argc int32
-
-	argsPtr, err := syscall.UTF16PtrFromString(commandLine)
-	if err != nil {
-		return nil, err
-	}
-
-	argv, err := syscall.CommandLineToArgv(argsPtr, &argc)
-	if err != nil {
-		return nil, err
-	}
-	defer syscall.LocalFree(syscall.Handle(uintptr(unsafe.Pointer(argv))))
-
-	newArgs := make([]string, argc)
-	for i, v := range (*argv)[:argc] {
-		newArgs[i] = string(syscall.UTF16ToString((*v)[:]))
-	}
-
-	return newArgs, nil
-}
-
-// HasWin32KSupport determines whether containers that depend on win32k can
-// run on this machine. Win32k is the driver used to implement windowing.
-func HasWin32KSupport() bool {
-	// For now, check for ntuser API support on the host. In the future, a host
-	// may support win32k in containers even if the host does not support ntuser
-	// APIs.
-	return ntuserApiset.Load() == nil
-}

vendor/github.com/docker/docker/pkg/system/umask.go

@@ -1,13 +0,0 @@
-// +build !windows
-
-package system
-
-import (
-	"syscall"
-)
-
-// Umask sets current process's file mode creation mask to newmask
-// and returns oldmask.
-func Umask(newmask int) (oldmask int, err error) {
-	return syscall.Umask(newmask), nil
-}

vendor/github.com/docker/docker/pkg/system/umask_windows.go

@@ -1,9 +0,0 @@
-// +build windows
-
-package system
-
-// Umask is not supported on the windows platform.
-func Umask(newmask int) (oldmask int, err error) {
-	// should not be called on cli code path
-	return 0, ErrNotSupportedPlatform
-}

vendor/github.com/docker/docker/pkg/system/utimes_freebsd.go

@@ -1,22 +0,0 @@
-package system
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// LUtimesNano is used to change access and modification time of the specified path.
-// It's used for symbol link file because syscall.UtimesNano doesn't support a NOFOLLOW flag atm.
-func LUtimesNano(path string, ts []syscall.Timespec) error {
-	var _path *byte
-	_path, err := syscall.BytePtrFromString(path)
-	if err != nil {
-		return err
-	}
-
-	if _, _, err := syscall.Syscall(syscall.SYS_LUTIMES, uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), 0); err != 0 && err != syscall.ENOSYS {
-		return err
-	}
-
-	return nil
-}

vendor/github.com/docker/docker/pkg/system/utimes_linux.go

@@ -1,26 +0,0 @@
-package system
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// LUtimesNano is used to change access and modification time of the specified path.
-// It's used for symbol link file because syscall.UtimesNano doesn't support a NOFOLLOW flag atm.
-func LUtimesNano(path string, ts []syscall.Timespec) error {
-	// These are not currently available in syscall
-	atFdCwd := -100
-	atSymLinkNoFollow := 0x100
-
-	var _path *byte
-	_path, err := syscall.BytePtrFromString(path)
-	if err != nil {
-		return err
-	}
-
-	if _, _, err := syscall.Syscall6(syscall.SYS_UTIMENSAT, uintptr(atFdCwd), uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), uintptr(atSymLinkNoFollow), 0, 0); err != 0 && err != syscall.ENOSYS {
-		return err
-	}
-
-	return nil
-}

vendor/github.com/docker/docker/pkg/system/utimes_unsupported.go

@@ -1,10 +0,0 @@
-// +build !linux,!freebsd
-
-package system
-
-import "syscall"
-
-// LUtimesNano is only supported on linux and freebsd.
-func LUtimesNano(path string, ts []syscall.Timespec) error {
-	return ErrNotSupportedPlatform
-}

vendor/github.com/docker/docker/pkg/system/xattrs_linux.go

@@ -1,63 +0,0 @@
-package system
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// Lgetxattr retrieves the value of the extended attribute identified by attr
-// and associated with the given path in the file system.
-// It will returns a nil slice and nil error if the xattr is not set.
-func Lgetxattr(path string, attr string) ([]byte, error) {
-	pathBytes, err := syscall.BytePtrFromString(path)
-	if err != nil {
-		return nil, err
-	}
-	attrBytes, err := syscall.BytePtrFromString(attr)
-	if err != nil {
-		return nil, err
-	}
-
-	dest := make([]byte, 128)
-	destBytes := unsafe.Pointer(&dest[0])
-	sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
-	if errno == syscall.ENODATA {
-		return nil, nil
-	}
-	if errno == syscall.ERANGE {
-		dest = make([]byte, sz)
-		destBytes := unsafe.Pointer(&dest[0])
-		sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
-	}
-	if errno != 0 {
-		return nil, errno
-	}
-
-	return dest[:sz], nil
-}
-
-var _zero uintptr
-
-// Lsetxattr sets the value of the extended attribute identified by attr
-// and associated with the given path in the file system.
-func Lsetxattr(path string, attr string, data []byte, flags int) error {
-	pathBytes, err := syscall.BytePtrFromString(path)
-	if err != nil {
-		return err
-	}
-	attrBytes, err := syscall.BytePtrFromString(attr)
-	if err != nil {
-		return err
-	}
-	var dataBytes unsafe.Pointer
-	if len(data) > 0 {
-		dataBytes = unsafe.Pointer(&data[0])
-	} else {
-		dataBytes = unsafe.Pointer(&_zero)
-	}
-	_, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0)
-	if errno != 0 {
-		return errno
-	}
-	return nil
-}