@@ -102,6 +102,8 @@ google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944

 # containerd

 github.com/containerd/containerd 3addd840653146c90a254301d6c3a663c7fd6429

 github.com/tonistiigi/fifo 1405643975692217d6720f8b54aeee1bf2cd5cf4

+github.com/stevvooe/continuity cd7a8e21e2b6f84799f5dd4b65faf49c8d3ee02d

+github.com/tonistiigi/fsutil 0ac4c11b053b9c5c7c47558f81f96c7100ce50fb

 # cluster

 github.com/docker/swarmkit a4bf0135f63fb60f0e76ae81579cde87f580db6e

new file mode 100644

@@ -0,0 +1,202 @@

+                                 Apache License

+                           Version 2.0, January 2004

+                        http://www.apache.org/licenses/

+

+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

+

+   1. Definitions.

+

+      "License" shall mean the terms and conditions for use, reproduction,

+      and distribution as defined by Sections 1 through 9 of this document.

+

+      "Licensor" shall mean the copyright owner or entity authorized by

+      the copyright owner that is granting the License.

+

+      "Legal Entity" shall mean the union of the acting entity and all

+      other entities that control, are controlled by, or are under common

+      control with that entity. For the purposes of this definition,

+      "control" means (i) the power, direct or indirect, to cause the

+      direction or management of such entity, whether by contract or

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+      outstanding shares, or (iii) beneficial ownership of such entity.

+

+      "You" (or "Your") shall mean an individual or Legal Entity

+      exercising permissions granted by this License.

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+

+      "Work" shall mean the work of authorship, whether in Source or

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+      "Derivative Works" shall mean any work, whether in Source or Object

+      form, that is based on (or derived from) the Work and for which the

+      editorial revisions, annotations, elaborations, or other modifications

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+

+   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

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+      the terms of any separate license agreement you may have executed

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+

+   6. Trademarks. This License does not grant permission to use the trade

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+      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

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+      appropriateness of using or redistributing the Work and assume any

+      risks associated with Your exercise of permissions under this License.

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+   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

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+   APPENDIX: How to apply the Apache License to your work.

+

+      To apply the Apache License to your work, attach the following

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+   Copyright {yyyy} {name of copyright owner}

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+   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

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+       http://www.apache.org/licenses/LICENSE-2.0

+

+   Unless required by applicable law or agreed to in writing, software

+   distributed under the License is distributed on an "AS IS" BASIS,

+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+   See the License for the specific language governing permissions and

+   limitations under the License.

+

new file mode 100644

@@ -0,0 +1,19 @@

+# continuity

+

+[![GoDoc](https://godoc.org/github.com/containerd/continuity?status.svg)](https://godoc.org/github.com/containerd/continuity)

+[![Build Status](https://travis-ci.org/containerd/continuity.svg?branch=master)](https://travis-ci.org/containerd/continuity)

+

+A transport-agnostic, filesystem metadata manifest system

+

+This project is a staging area for experiments in providing transport agnostic

+metadata storage.

+

+Please see https://github.com/opencontainers/specs/issues/11 for more details.

+

+## Building Proto Package

+

+If you change the proto file you will need to rebuild the generated Go with `go generate`.

+

+```

+go generate ./proto

+```

new file mode 100644

@@ -0,0 +1,10 @@

+// Copyright 2014 The Go Authors.  All rights reserved.

+// Use of this source code is governed by a BSD-style

+// license that can be found in the LICENSE file.

+

+// +build !gccgo

+

+#include "textflag.h"

+

+TEXT ·use(SB),NOSPLIT,$0

+	RET

new file mode 100644

@@ -0,0 +1,18 @@

+package sysx

+

+const (

+	// AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in <sys/fcntl.h>

+	AtSymlinkNofollow = 0x20

+)

+

+const (

+

+	// SYS_FCHMODAT defined from golang.org/sys/unix

+	SYS_FCHMODAT = 467

+)

+

+// These functions will be generated by generate.sh

+//    $ GOOS=darwin GOARCH=386 ./generate.sh chmod

+//    $ GOOS=darwin GOARCH=amd64 ./generate.sh chmod

+

+//sys  Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

new file mode 100644

@@ -0,0 +1,25 @@

+// mksyscall.pl -l32 chmod_darwin.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	_, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)

+	use(unsafe.Pointer(_p0))

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,25 @@

+// mksyscall.pl chmod_darwin.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	_, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)

+	use(unsafe.Pointer(_p0))

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,17 @@

+package sysx

+

+const (

+	// AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in <sys/fcntl.h>

+	AtSymlinkNofollow = 0x200

+)

+

+const (

+

+	// SYS_FCHMODAT defined from golang.org/sys/unix

+	SYS_FCHMODAT = 490

+)

+

+// These functions will be generated by generate.sh

+//    $ GOOS=freebsd GOARCH=amd64 ./generate.sh chmod

+

+//sys  Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

new file mode 100644

@@ -0,0 +1,25 @@

+// mksyscall.pl chmod_freebsd.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	_, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)

+	use(unsafe.Pointer(_p0))

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,12 @@

+package sysx

+

+import "syscall"

+

+const (

+	// AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in /usr/include/linux/fcntl.h

+	AtSymlinkNofollow = 0x100

+)

+

+func Fchmodat(dirfd int, path string, mode uint32, flags int) error {

+	return syscall.Fchmodat(dirfd, path, mode, flags)

+}

new file mode 100644

@@ -0,0 +1,9 @@

+package sysx

+

+// These functions will be generated by generate.sh

+//    $ GOOS=linux GOARCH=386 ./generate.sh copy

+//    $ GOOS=linux GOARCH=amd64 ./generate.sh copy

+//    $ GOOS=linux GOARCH=arm ./generate.sh copy

+//    $ GOOS=linux GOARCH=arm64 ./generate.sh copy

+

+//sys CopyFileRange(fdin uintptr, offin *int64, fdout uintptr, offout *int64, len int, flags int) (n int, err error)

new file mode 100644

@@ -0,0 +1,20 @@

+// mksyscall.pl -l32 copy_linux.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func CopyFileRange(fdin uintptr, offin *int64, fdout uintptr, offout *int64, len int, flags int) (n int, err error) {

+	r0, _, e1 := syscall.Syscall6(SYS_COPY_FILE_RANGE, uintptr(fdin), uintptr(unsafe.Pointer(offin)), uintptr(fdout), uintptr(unsafe.Pointer(offout)), uintptr(len), uintptr(flags))

+	n = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,20 @@

+// mksyscall.pl copy_linux.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func CopyFileRange(fdin uintptr, offin *int64, fdout uintptr, offout *int64, len int, flags int) (n int, err error) {

+	r0, _, e1 := syscall.Syscall6(SYS_COPY_FILE_RANGE, uintptr(fdin), uintptr(unsafe.Pointer(offin)), uintptr(fdout), uintptr(unsafe.Pointer(offout)), uintptr(len), uintptr(flags))

+	n = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,20 @@

+// mksyscall.pl -l32 copy_linux.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func CopyFileRange(fdin uintptr, offin *int64, fdout uintptr, offout *int64, len int, flags int) (n int, err error) {

+	r0, _, e1 := syscall.Syscall6(SYS_COPY_FILE_RANGE, uintptr(fdin), uintptr(unsafe.Pointer(offin)), uintptr(fdout), uintptr(unsafe.Pointer(offout)), uintptr(len), uintptr(flags))

+	n = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,20 @@

+// mksyscall.pl copy_linux.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func CopyFileRange(fdin uintptr, offin *int64, fdout uintptr, offout *int64, len int, flags int) (n int, err error) {

+	r0, _, e1 := syscall.Syscall6(SYS_COPY_FILE_RANGE, uintptr(fdin), uintptr(unsafe.Pointer(offin)), uintptr(fdout), uintptr(unsafe.Pointer(offout)), uintptr(len), uintptr(flags))

+	n = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644

@@ -0,0 +1,7 @@

+package sysx

+

+import (

+	"syscall"

+)

+

+const ENODATA = syscall.ENODATA

new file mode 100644

@@ -0,0 +1,9 @@

+// +build darwin freebsd

+

+package sysx

+

+import (

+	"syscall"

+)

+

+const ENODATA = syscall.ENOATTR

new file mode 100644

@@ -0,0 +1,37 @@

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+var _zero uintptr

+

+// use is a no-op, but the compiler cannot see that it is.

+// Calling use(p) ensures that p is kept live until that point.

+//go:noescape

+func use(p unsafe.Pointer)

+

+// Do the interface allocations only once for common

+// Errno values.

+var (

+	errEAGAIN error = syscall.EAGAIN

+	errEINVAL error = syscall.EINVAL

+	errENOENT error = syscall.ENOENT

+)

+

+// errnoErr returns common boxed Errno values, to prevent

+// allocations at runtime.

+func errnoErr(e syscall.Errno) error {

+	switch e {

+	case 0:

+		return nil

+	case syscall.EAGAIN:

+		return errEAGAIN

+	case syscall.EINVAL:

+		return errEINVAL

+	case syscall.ENOENT:

+		return errENOENT

+	}

+	return e

+}

new file mode 100644

@@ -0,0 +1,7 @@

+package sysx

+

+const (

+	// SYS_COPYFILERANGE defined in Kernel 4.5+

+	// Number defined in /usr/include/asm/unistd_32.h

+	SYS_COPY_FILE_RANGE = 377

+)

new file mode 100644

@@ -0,0 +1,7 @@

+package sysx

+

+const (

+	// SYS_COPYFILERANGE defined in Kernel 4.5+

+	// Number defined in /usr/include/asm/unistd_64.h

+	SYS_COPY_FILE_RANGE = 326

+)

new file mode 100644

@@ -0,0 +1,7 @@

+package sysx

+

+const (

+	// SYS_COPY_FILE_RANGE defined in Kernel 4.5+

+	// Number defined in /usr/include/arm-linux-gnueabihf/asm/unistd.h

+	SYS_COPY_FILE_RANGE = 391

+)

new file mode 100644

@@ -0,0 +1,7 @@

+package sysx

+

+const (

+	// SYS_COPY_FILE_RANGE defined in Kernel 4.5+

+	// Number defined in /usr/include/asm-generic/unistd.h

+	SYS_COPY_FILE_RANGE = 285

+)

new file mode 100644

@@ -0,0 +1,67 @@

+package sysx

+

+import (

+	"bytes"

+	"fmt"

+	"syscall"

+)

+

+const defaultXattrBufferSize = 5

+

+var ErrNotSupported = fmt.Errorf("not supported")

+

+type listxattrFunc func(path string, dest []byte) (int, error)

+

+func listxattrAll(path string, listFunc listxattrFunc) ([]string, error) {

+	var p []byte // nil on first execution

+

+	for {

+		n, err := listFunc(path, p) // first call gets buffer size.

+		if err != nil {

+			return nil, err

+		}

+

+		if n > len(p) {

+			p = make([]byte, n)

+			continue

+		}

+

+		p = p[:n]

+

+		ps := bytes.Split(bytes.TrimSuffix(p, []byte{0}), []byte{0})

+		var entries []string

+		for _, p := range ps {

+			s := string(p)

+			if s != "" {

+				entries = append(entries, s)

+			}

+		}

+

+		return entries, nil

+	}

+}

+

+type getxattrFunc func(string, string, []byte) (int, error)

+

+func getxattrAll(path, attr string, getFunc getxattrFunc) ([]byte, error) {

+	p := make([]byte, defaultXattrBufferSize)

+	for {

+		n, err := getFunc(path, attr, p)

+		if err != nil {

+			if errno, ok := err.(syscall.Errno); ok && errno == syscall.ERANGE {

+				p = make([]byte, len(p)*2) // this can't be ideal.

+				continue                   // try again!

+			}

+

+			return nil, err

+		}

+

+		// realloc to correct size and repeat

+		if n > len(p) {

+			p = make([]byte, n)

+			continue

+		}

+

+		return p[:n], nil

+	}

+}

new file mode 100644

@@ -0,0 +1,71 @@

+package sysx

+

+// These functions will be generated by generate.sh

+//    $ GOOS=darwin GOARCH=386 ./generate.sh xattr

+//    $ GOOS=darwin GOARCH=amd64 ./generate.sh xattr

+

+//sys  getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error)

+//sys  setxattr(path string, attr string, data []byte, flags int) (err error)

+//sys  removexattr(path string, attr string, options int) (err error)

+//sys  listxattr(path string, dest []byte, options int) (sz int, err error)

+//sys  Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

+

+const (

+	xattrNoFollow = 0x01

+)

+

+func listxattrFollow(path string, dest []byte) (sz int, err error) {

+	return listxattr(path, dest, 0)

+}

+

+// Listxattr calls syscall getxattr

+func Listxattr(path string) ([]string, error) {

+	return listxattrAll(path, listxattrFollow)

+}

+

+// Removexattr calls syscall getxattr

+func Removexattr(path string, attr string) (err error) {

+	return removexattr(path, attr, 0)

+}

+

+// Setxattr calls syscall setxattr

+func Setxattr(path string, attr string, data []byte, flags int) (err error) {

+	return setxattr(path, attr, data, flags)

+}

+

+func getxattrFollow(path, attr string, dest []byte) (sz int, err error) {

+	return getxattr(path, attr, dest, 0, 0)

+}

+

+// Getxattr calls syscall getxattr

+func Getxattr(path, attr string) ([]byte, error) {

+	return getxattrAll(path, attr, getxattrFollow)

+}

+

+func listxattrNoFollow(path string, dest []byte) (sz int, err error) {

+	return listxattr(path, dest, xattrNoFollow)

+}

+

+// LListxattr calls syscall listxattr with XATTR_NOFOLLOW

+func LListxattr(path string) ([]string, error) {

+	return listxattrAll(path, listxattrNoFollow)

+}

+

+// LRemovexattr calls syscall removexattr with XATTR_NOFOLLOW

+func LRemovexattr(path string, attr string) (err error) {

+	return removexattr(path, attr, xattrNoFollow)

+}

+

+// Setxattr calls syscall setxattr with XATTR_NOFOLLOW

+func LSetxattr(path string, attr string, data []byte, flags int) (err error) {

+	return setxattr(path, attr, data, flags|xattrNoFollow)

+}

+

+func getxattrNoFollow(path, attr string, dest []byte) (sz int, err error) {

+	return getxattr(path, attr, dest, 0, xattrNoFollow)

+}

+

+// LGetxattr calls syscall getxattr with XATTR_NOFOLLOW

+func LGetxattr(path, attr string) ([]byte, error) {

+	return getxattrAll(path, attr, getxattrNoFollow)

+}

new file mode 100644

@@ -0,0 +1,111 @@

+// mksyscall.pl -l32 xattr_darwin.go

+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT

+

+package sysx

+

+import (

+	"syscall"

+	"unsafe"

+)

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	var _p1 *byte

+	_p1, err = syscall.BytePtrFromString(attr)

+	if err != nil {

+		return

+	}

+	var _p2 unsafe.Pointer

+	if len(dest) > 0 {

+		_p2 = unsafe.Pointer(&dest[0])

+	} else {

+		_p2 = unsafe.Pointer(&_zero)

+	}

+	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), uintptr(pos), uintptr(options))

+	use(unsafe.Pointer(_p0))

+	use(unsafe.Pointer(_p1))

+	sz = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func setxattr(path string, attr string, data []byte, flags int) (err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	var _p1 *byte

+	_p1, err = syscall.BytePtrFromString(attr)

+	if err != nil {

+		return

+	}

+	var _p2 unsafe.Pointer

+	if len(data) > 0 {

+		_p2 = unsafe.Pointer(&data[0])

+	} else {

+		_p2 = unsafe.Pointer(&_zero)

+	}

+	_, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(data)), uintptr(flags), 0)

+	use(unsafe.Pointer(_p0))

+	use(unsafe.Pointer(_p1))

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func removexattr(path string, attr string, options int) (err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	var _p1 *byte

+	_p1, err = syscall.BytePtrFromString(attr)

+	if err != nil {

+		return

+	}

+	_, _, e1 := syscall.Syscall(syscall.SYS_REMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(options))

+	use(unsafe.Pointer(_p0))

+	use(unsafe.Pointer(_p1))

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

+

+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

+

+func listxattr(path string, dest []byte, options int) (sz int, err error) {

+	var _p0 *byte

+	_p0, err = syscall.BytePtrFromString(path)

+	if err != nil {

+		return

+	}

+	var _p1 unsafe.Pointer

+	if len(dest) > 0 {

+		_p1 = unsafe.Pointer(&dest[0])

+	} else {

+		_p1 = unsafe.Pointer(&_zero)

+	}

+	r0, _, e1 := syscall.Syscall6(syscall.SYS_LISTXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(dest)), uintptr(options), 0, 0)

+	use(unsafe.Pointer(_p0))

+	sz = int(r0)

+	if e1 != 0 {

+		err = errnoErr(e1)

+	}

+	return

+}

new file mode 100644