Adding vendored code in pkg directories

vendor/github.com/docker/docker/pkg/mflag/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2014-2016 The Docker & Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/docker/docker/pkg/mount/flags.go

@@ -0,0 +1,92 @@
+package mount
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Parse fstab type mount options into mount() flags
+// and device specific data
+func parseOptions(options string) (int, string) {
+	var (
+		flag int
+		data []string
+	)
+
+	flags := map[string]struct {
+		clear bool
+		flag  int
+	}{
+		"defaults":      {false, 0},
+		"ro":            {false, RDONLY},
+		"rw":            {true, RDONLY},
+		"suid":          {true, NOSUID},
+		"nosuid":        {false, NOSUID},
+		"dev":           {true, NODEV},
+		"nodev":         {false, NODEV},
+		"exec":          {true, NOEXEC},
+		"noexec":        {false, NOEXEC},
+		"sync":          {false, SYNCHRONOUS},
+		"async":         {true, SYNCHRONOUS},
+		"dirsync":       {false, DIRSYNC},
+		"remount":       {false, REMOUNT},
+		"mand":          {false, MANDLOCK},
+		"nomand":        {true, MANDLOCK},
+		"atime":         {true, NOATIME},
+		"noatime":       {false, NOATIME},
+		"diratime":      {true, NODIRATIME},
+		"nodiratime":    {false, NODIRATIME},
+		"bind":          {false, BIND},
+		"rbind":         {false, RBIND},
+		"unbindable":    {false, UNBINDABLE},
+		"runbindable":   {false, RUNBINDABLE},
+		"private":       {false, PRIVATE},
+		"rprivate":      {false, RPRIVATE},
+		"shared":        {false, SHARED},
+		"rshared":       {false, RSHARED},
+		"slave":         {false, SLAVE},
+		"rslave":        {false, RSLAVE},
+		"relatime":      {false, RELATIME},
+		"norelatime":    {true, RELATIME},
+		"strictatime":   {false, STRICTATIME},
+		"nostrictatime": {true, STRICTATIME},
+	}
+
+	for _, o := range strings.Split(options, ",") {
+		// If the option does not exist in the flags table or the flag
+		// is not supported on the platform,
+		// then it is a data value for a specific fs type
+		if f, exists := flags[o]; exists && f.flag != 0 {
+			if f.clear {
+				flag &= ^f.flag
+			} else {
+				flag |= f.flag
+			}
+		} else {
+			data = append(data, o)
+		}
+	}
+	return flag, strings.Join(data, ",")
+}
+
+// ParseTmpfsOptions parse fstab type mount options into flags and data
+func ParseTmpfsOptions(options string) (int, string, error) {
+	flags, data := parseOptions(options)
+	validFlags := map[string]bool{
+		"":          true,
+		"size":      true,
+		"mode":      true,
+		"uid":       true,
+		"gid":       true,
+		"nr_inodes": true,
+		"nr_blocks": true,
+		"mpol":      true,
+	}
+	for _, o := range strings.Split(data, ",") {
+		opt := strings.SplitN(o, "=", 2)
+		if !validFlags[opt[0]] {
+			return 0, "", fmt.Errorf("Invalid tmpfs option %q", opt)
+		}
+	}
+	return flags, data, nil
+}

vendor/github.com/docker/docker/pkg/mount/flags_freebsd.go

@@ -0,0 +1,48 @@
+// +build freebsd,cgo
+
+package mount
+
+/*
+#include <sys/mount.h>
+*/
+import "C"
+
+const (
+	// RDONLY will mount the filesystem as read-only.
+	RDONLY = C.MNT_RDONLY
+
+	// NOSUID will not allow set-user-identifier or set-group-identifier bits to
+	// take effect.
+	NOSUID = C.MNT_NOSUID
+
+	// NOEXEC will not allow execution of any binaries on the mounted file system.
+	NOEXEC = C.MNT_NOEXEC
+
+	// SYNCHRONOUS will allow any I/O to the file system to be done synchronously.
+	SYNCHRONOUS = C.MNT_SYNCHRONOUS
+
+	// NOATIME will not update the file access time when reading from a file.
+	NOATIME = C.MNT_NOATIME
+)
+
+// These flags are unsupported.
+const (
+	BIND        = 0
+	DIRSYNC     = 0
+	MANDLOCK    = 0
+	NODEV       = 0
+	NODIRATIME  = 0
+	UNBINDABLE  = 0
+	RUNBINDABLE = 0
+	PRIVATE     = 0
+	RPRIVATE    = 0
+	SHARED      = 0
+	RSHARED     = 0
+	SLAVE       = 0
+	RSLAVE      = 0
+	RBIND       = 0
+	RELATIVE    = 0
+	RELATIME    = 0
+	REMOUNT     = 0
+	STRICTATIME = 0
+)

vendor/github.com/docker/docker/pkg/mount/flags_linux.go

@@ -0,0 +1,85 @@
+package mount
+
+import (
+	"syscall"
+)
+
+const (
+	// RDONLY will mount the file system read-only.
+	RDONLY = syscall.MS_RDONLY
+
+	// NOSUID will not allow set-user-identifier or set-group-identifier bits to
+	// take effect.
+	NOSUID = syscall.MS_NOSUID
+
+	// NODEV will not interpret character or block special devices on the file
+	// system.
+	NODEV = syscall.MS_NODEV
+
+	// NOEXEC will not allow execution of any binaries on the mounted file system.
+	NOEXEC = syscall.MS_NOEXEC
+
+	// SYNCHRONOUS will allow I/O to the file system to be done synchronously.
+	SYNCHRONOUS = syscall.MS_SYNCHRONOUS
+
+	// DIRSYNC will force all directory updates within the file system to be done
+	// synchronously. This affects the following system calls: create, link,
+	// unlink, symlink, mkdir, rmdir, mknod and rename.
+	DIRSYNC = syscall.MS_DIRSYNC
+
+	// REMOUNT will attempt to remount an already-mounted file system. This is
+	// commonly used to change the mount flags for a file system, especially to
+	// make a readonly file system writeable. It does not change device or mount
+	// point.
+	REMOUNT = syscall.MS_REMOUNT
+
+	// MANDLOCK will force mandatory locks on a filesystem.
+	MANDLOCK = syscall.MS_MANDLOCK
+
+	// NOATIME will not update the file access time when reading from a file.
+	NOATIME = syscall.MS_NOATIME
+
+	// NODIRATIME will not update the directory access time.
+	NODIRATIME = syscall.MS_NODIRATIME
+
+	// BIND remounts a subtree somewhere else.
+	BIND = syscall.MS_BIND
+
+	// RBIND remounts a subtree and all possible submounts somewhere else.
+	RBIND = syscall.MS_BIND | syscall.MS_REC
+
+	// UNBINDABLE creates a mount which cannot be cloned through a bind operation.
+	UNBINDABLE = syscall.MS_UNBINDABLE
+
+	// RUNBINDABLE marks the entire mount tree as UNBINDABLE.
+	RUNBINDABLE = syscall.MS_UNBINDABLE | syscall.MS_REC
+
+	// PRIVATE creates a mount which carries no propagation abilities.
+	PRIVATE = syscall.MS_PRIVATE
+
+	// RPRIVATE marks the entire mount tree as PRIVATE.
+	RPRIVATE = syscall.MS_PRIVATE | syscall.MS_REC
+
+	// SLAVE creates a mount which receives propagation from its master, but not
+	// vice versa.
+	SLAVE = syscall.MS_SLAVE
+
+	// RSLAVE marks the entire mount tree as SLAVE.
+	RSLAVE = syscall.MS_SLAVE | syscall.MS_REC
+
+	// SHARED creates a mount which provides the ability to create mirrors of
+	// that mount such that mounts and unmounts within any of the mirrors
+	// propagate to the other mirrors.
+	SHARED = syscall.MS_SHARED
+
+	// RSHARED marks the entire mount tree as SHARED.
+	RSHARED = syscall.MS_SHARED | syscall.MS_REC
+
+	// RELATIME updates inode access times relative to modify or change time.
+	RELATIME = syscall.MS_RELATIME
+
+	// STRICTATIME allows to explicitly request full atime updates.  This makes
+	// it possible for the kernel to default to relatime or noatime but still
+	// allow userspace to override it.
+	STRICTATIME = syscall.MS_STRICTATIME
+)

vendor/github.com/docker/docker/pkg/mount/flags_unsupported.go

@@ -0,0 +1,30 @@
+// +build !linux,!freebsd freebsd,!cgo
+
+package mount
+
+// These flags are unsupported.
+const (
+	BIND        = 0
+	DIRSYNC     = 0
+	MANDLOCK    = 0
+	NOATIME     = 0
+	NODEV       = 0
+	NODIRATIME  = 0
+	NOEXEC      = 0
+	NOSUID      = 0
+	UNBINDABLE  = 0
+	RUNBINDABLE = 0
+	PRIVATE     = 0
+	RPRIVATE    = 0
+	SHARED      = 0
+	RSHARED     = 0
+	SLAVE       = 0
+	RSLAVE      = 0
+	RBIND       = 0
+	RELATIME    = 0
+	RELATIVE    = 0
+	REMOUNT     = 0
+	STRICTATIME = 0
+	SYNCHRONOUS = 0
+	RDONLY      = 0
+)

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

@@ -0,0 +1,74 @@
+package mount
+
+import (
+	"time"
+)
+
+// GetMounts retrieves a list of mounts for the current running process.
+func GetMounts() ([]*Info, error) {
+	return parseMountTable()
+}
+
+// Mounted looks at /proc/self/mountinfo to determine of the specified
+// mountpoint has been mounted
+func Mounted(mountpoint string) (bool, error) {
+	entries, err := parseMountTable()
+	if err != nil {
+		return false, err
+	}
+
+	// Search the table for the mountpoint
+	for _, e := range entries {
+		if e.Mountpoint == mountpoint {
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+// Mount will mount filesystem according to the specified configuration, on the
+// condition that the target path is *not* already mounted. Options must be
+// specified like the mount or fstab unix commands: "opt1=val1,opt2=val2". See
+// flags.go for supported option flags.
+func Mount(device, target, mType, options string) error {
+	flag, _ := parseOptions(options)
+	if flag&REMOUNT != REMOUNT {
+		if mounted, err := Mounted(target); err != nil || mounted {
+			return err
+		}
+	}
+	return ForceMount(device, target, mType, options)
+}
+
+// ForceMount will mount a filesystem according to the specified configuration,
+// *regardless* if the target path is not already mounted. Options must be
+// specified like the mount or fstab unix commands: "opt1=val1,opt2=val2". See
+// flags.go for supported option flags.
+func ForceMount(device, target, mType, options string) error {
+	flag, data := parseOptions(options)
+	if err := mount(device, target, mType, uintptr(flag), data); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Unmount will unmount the target filesystem, so long as it is mounted.
+func Unmount(target string) error {
+	if mounted, err := Mounted(target); err != nil || !mounted {
+		return err
+	}
+	return ForceUnmount(target)
+}
+
+// ForceUnmount will force an unmount of the target filesystem, regardless if
+// it is mounted or not.
+func ForceUnmount(target string) (err error) {
+	// Simple retry logic for unmount
+	for i := 0; i < 10; i++ {
+		if err = unmount(target, 0); err == nil {
+			return nil
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+	return
+}

vendor/github.com/docker/docker/pkg/mount/mounter_freebsd.go

@@ -0,0 +1,59 @@
+package mount
+
+/*
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/_iovec.h>
+#include <sys/mount.h>
+#include <sys/param.h>
+*/
+import "C"
+
+import (
+	"fmt"
+	"strings"
+	"syscall"
+	"unsafe"
+)
+
+func allocateIOVecs(options []string) []C.struct_iovec {
+	out := make([]C.struct_iovec, len(options))
+	for i, option := range options {
+		out[i].iov_base = unsafe.Pointer(C.CString(option))
+		out[i].iov_len = C.size_t(len(option) + 1)
+	}
+	return out
+}
+
+func mount(device, target, mType string, flag uintptr, data string) error {
+	isNullFS := false
+
+	xs := strings.Split(data, ",")
+	for _, x := range xs {
+		if x == "bind" {
+			isNullFS = true
+		}
+	}
+
+	options := []string{"fspath", target}
+	if isNullFS {
+		options = append(options, "fstype", "nullfs", "target", device)
+	} else {
+		options = append(options, "fstype", mType, "from", device)
+	}
+	rawOptions := allocateIOVecs(options)
+	for _, rawOption := range rawOptions {
+		defer C.free(rawOption.iov_base)
+	}
+
+	if errno := C.nmount(&rawOptions[0], C.uint(len(options)), C.int(flag)); errno != 0 {
+		reason := C.GoString(C.strerror(*C.__error()))
+		return fmt.Errorf("Failed to call nmount: %s", reason)
+	}
+	return nil
+}
+
+func unmount(target string, flag int) error {
+	return syscall.Unmount(target, flag)
+}

vendor/github.com/docker/docker/pkg/mount/mounter_linux.go

@@ -0,0 +1,21 @@
+package mount
+
+import (
+	"syscall"
+)
+
+func mount(device, target, mType string, flag uintptr, data string) error {
+	if err := syscall.Mount(device, target, mType, flag, data); err != nil {
+		return err
+	}
+
+	// If we have a bind mount or remount, remount...
+	if flag&syscall.MS_BIND == syscall.MS_BIND && flag&syscall.MS_RDONLY == syscall.MS_RDONLY {
+		return syscall.Mount(device, target, mType, flag|syscall.MS_REMOUNT, data)
+	}
+	return nil
+}
+
+func unmount(target string, flag int) error {
+	return syscall.Unmount(target, flag)
+}

vendor/github.com/docker/docker/pkg/mount/mounter_unsupported.go

@@ -0,0 +1,11 @@
+// +build !linux,!freebsd freebsd,!cgo
+
+package mount
+
+func mount(device, target, mType string, flag uintptr, data string) error {
+	panic("Not implemented")
+}
+
+func unmount(target string, flag int) error {
+	panic("Not implemented")
+}

vendor/github.com/docker/docker/pkg/mount/mountinfo.go

@@ -0,0 +1,40 @@
+package mount
+
+// Info reveals information about a particular mounted filesystem. This
+// struct is populated from the content in the /proc/<pid>/mountinfo file.
+type Info struct {
+	// ID is a unique identifier of the mount (may be reused after umount).
+	ID int
+
+	// Parent indicates the ID of the mount parent (or of self for the top of the
+	// mount tree).
+	Parent int
+
+	// Major indicates one half of the device ID which identifies the device class.
+	Major int
+
+	// Minor indicates one half of the device ID which identifies a specific
+	// instance of device.
+	Minor int
+
+	// Root of the mount within the filesystem.
+	Root string
+
+	// Mountpoint indicates the mount point relative to the process's root.
+	Mountpoint string
+
+	// Opts represents mount-specific options.
+	Opts string
+
+	// Optional represents optional fields.
+	Optional string
+
+	// Fstype indicates the type of filesystem, such as EXT3.
+	Fstype string
+
+	// Source indicates filesystem specific information or "none".
+	Source string
+
+	// VfsOpts represents per super block options.
+	VfsOpts string
+}

vendor/github.com/docker/docker/pkg/mount/mountinfo_freebsd.go

@@ -0,0 +1,41 @@
+package mount
+
+/*
+#include <sys/param.h>
+#include <sys/ucred.h>
+#include <sys/mount.h>
+*/
+import "C"
+
+import (
+	"fmt"
+	"reflect"
+	"unsafe"
+)
+
+// Parse /proc/self/mountinfo because comparing Dev and ino does not work from
+// bind mounts.
+func parseMountTable() ([]*Info, error) {
+	var rawEntries *C.struct_statfs
+
+	count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
+	if count == 0 {
+		return nil, fmt.Errorf("Failed to call getmntinfo")
+	}
+
+	var entries []C.struct_statfs
+	header := (*reflect.SliceHeader)(unsafe.Pointer(&entries))
+	header.Cap = count
+	header.Len = count
+	header.Data = uintptr(unsafe.Pointer(rawEntries))
+
+	var out []*Info
+	for _, entry := range entries {
+		var mountinfo Info
+		mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0])
+		mountinfo.Source = C.GoString(&entry.f_mntfromname[0])
+		mountinfo.Fstype = C.GoString(&entry.f_fstypename[0])
+		out = append(out, &mountinfo)
+	}
+	return out, nil
+}

vendor/github.com/docker/docker/pkg/mount/mountinfo_linux.go

@@ -0,0 +1,95 @@
+// +build linux
+
+package mount
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+const (
+	/* 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
+	   (1)(2)(3)   (4)   (5)      (6)      (7)   (8) (9)   (10)         (11)
+
+	   (1) mount ID:  unique identifier of the mount (may be reused after umount)
+	   (2) parent ID:  ID of parent (or of self for the top of the mount tree)
+	   (3) major:minor:  value of st_dev for files on filesystem
+	   (4) root:  root of the mount within the filesystem
+	   (5) mount point:  mount point relative to the process's root
+	   (6) mount options:  per mount options
+	   (7) optional fields:  zero or more fields of the form "tag[:value]"
+	   (8) separator:  marks the end of the optional fields
+	   (9) filesystem type:  name of filesystem of the form "type[.subtype]"
+	   (10) mount source:  filesystem specific information or "none"
+	   (11) super options:  per super block options*/
+	mountinfoFormat = "%d %d %d:%d %s %s %s %s"
+)
+
+// Parse /proc/self/mountinfo because comparing Dev and ino does not work from
+// bind mounts
+func parseMountTable() ([]*Info, error) {
+	f, err := os.Open("/proc/self/mountinfo")
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	return parseInfoFile(f)
+}
+
+func parseInfoFile(r io.Reader) ([]*Info, error) {
+	var (
+		s   = bufio.NewScanner(r)
+		out = []*Info{}
+	)
+
+	for s.Scan() {
+		if err := s.Err(); err != nil {
+			return nil, err
+		}
+
+		var (
+			p              = &Info{}
+			text           = s.Text()
+			optionalFields string
+		)
+
+		if _, err := fmt.Sscanf(text, mountinfoFormat,
+			&p.ID, &p.Parent, &p.Major, &p.Minor,
+			&p.Root, &p.Mountpoint, &p.Opts, &optionalFields); err != nil {
+			return nil, fmt.Errorf("Scanning '%s' failed: %s", text, err)
+		}
+		// Safe as mountinfo encodes mountpoints with spaces as \040.
+		index := strings.Index(text, " - ")
+		postSeparatorFields := strings.Fields(text[index+3:])
+		if len(postSeparatorFields) < 3 {
+			return nil, fmt.Errorf("Error found less than 3 fields post '-' in %q", text)
+		}
+
+		if optionalFields != "-" {
+			p.Optional = optionalFields
+		}
+
+		p.Fstype = postSeparatorFields[0]
+		p.Source = postSeparatorFields[1]
+		p.VfsOpts = strings.Join(postSeparatorFields[2:], " ")
+		out = append(out, p)
+	}
+	return out, nil
+}
+
+// PidMountInfo collects the mounts for a specific process ID. If the process
+// ID is unknown, it is better to use `GetMounts` which will inspect
+// "/proc/self/mountinfo" instead.
+func PidMountInfo(pid int) ([]*Info, error) {
+	f, err := os.Open(fmt.Sprintf("/proc/%d/mountinfo", pid))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	return parseInfoFile(f)
+}

vendor/github.com/docker/docker/pkg/mount/mountinfo_unsupported.go

@@ -0,0 +1,12 @@
+// +build !linux,!freebsd freebsd,!cgo
+
+package mount
+
+import (
+	"fmt"
+	"runtime"
+)
+
+func parseMountTable() ([]*Info, error) {
+	return nil, fmt.Errorf("mount.parseMountTable is not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
+}

vendor/github.com/docker/docker/pkg/mount/sharedsubtree_linux.go

@@ -0,0 +1,70 @@
+// +build linux
+
+package mount
+
+// MakeShared ensures a mounted filesystem has the SHARED mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeShared(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "shared")
+}
+
+// MakeRShared ensures a mounted filesystem has the RSHARED mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeRShared(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "rshared")
+}
+
+// MakePrivate ensures a mounted filesystem has the PRIVATE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakePrivate(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "private")
+}
+
+// MakeRPrivate ensures a mounted filesystem has the RPRIVATE mount option
+// enabled. See the supported options in flags.go for further reference.
+func MakeRPrivate(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "rprivate")
+}
+
+// MakeSlave ensures a mounted filesystem has the SLAVE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeSlave(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "slave")
+}
+
+// MakeRSlave ensures a mounted filesystem has the RSLAVE mount option enabled.
+// See the supported options in flags.go for further reference.
+func MakeRSlave(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "rslave")
+}
+
+// MakeUnbindable ensures a mounted filesystem has the UNBINDABLE mount option
+// enabled. See the supported options in flags.go for further reference.
+func MakeUnbindable(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "unbindable")
+}
+
+// MakeRUnbindable ensures a mounted filesystem has the RUNBINDABLE mount
+// option enabled. See the supported options in flags.go for further reference.
+func MakeRUnbindable(mountPoint string) error {
+	return ensureMountedAs(mountPoint, "runbindable")
+}
+
+func ensureMountedAs(mountPoint, options string) error {
+	mounted, err := Mounted(mountPoint)
+	if err != nil {
+		return err
+	}
+
+	if !mounted {
+		if err := Mount(mountPoint, mountPoint, "none", "bind,rw"); err != nil {
+			return err
+		}
+	}
+	mounted, err = Mounted(mountPoint)
+	if err != nil {
+		return err
+	}
+
+	return ForceMount("", mountPoint, "none", options)
+}

vendor/github.com/docker/docker/pkg/symlink/LICENSE.APACHE

@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      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
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          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 2014-2016 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
+
+       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.

vendor/github.com/docker/docker/pkg/symlink/LICENSE.BSD

@@ -0,0 +1,27 @@
+Copyright (c) 2014-2016 The Docker & Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/README.md

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_unix.go

@@ -0,0 +1,112 @@
+// +build !windows
+
+package archive
+
+import (
+	"archive/tar"
+	"errors"
+	"os"
+	"path/filepath"
+	"syscall"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/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 {
+	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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_windows.go

@@ -0,0 +1,70 @@
+// +build windows
+
+package archive
+
+import (
+	"archive/tar"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes.go

@@ -0,0 +1,416 @@
+package archive
+
+import (
+	"archive/tar"
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools"
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools"
+	"github.com/fsouza/go-dockerclient/external/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) {
+	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
+		}
+
+		// Skip AUFS metadata
+		if matched, err := filepath.Match(string(os.PathSeparator)+WhiteoutMetaPrefix+"*", path); err != nil || matched {
+			return err
+		}
+
+		change := Change{
+			Path: path,
+		}
+
+		// Find out what kind of modification happened
+		file := filepath.Base(path)
+		// If there is a whiteout, then the file was removed
+		if strings.HasPrefix(file, WhiteoutPrefix) {
+			originalFile := file[len(WhiteoutPrefix):]
+			change.Path = filepath.Join(filepath.Dir(path), originalFile)
+			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) (Archive, 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_linux.go

@@ -0,0 +1,285 @@
+package archive
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"syscall"
+	"unsafe"
+
+	"github.com/fsouza/go-dockerclient/external/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)
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_other.go

@@ -0,0 +1,97 @@
+// +build !linux
+
+package archive
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_unix.go

@@ -0,0 +1,36 @@
+// +build !windows
+
+package archive
+
+import (
+	"os"
+	"syscall"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_windows.go

@@ -0,0 +1,30 @@
+package archive
+
+import (
+	"os"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy.go

@@ -0,0 +1,458 @@
+package archive
+
+import (
+	"archive/tar"
+	"errors"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+	"github.com/fsouza/go-dockerclient/external/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 Archive, 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 Archive, 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 it's 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 Reader, srcInfo, dstInfo CopyInfo) (dstDir string, content Archive, 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 Reader, oldBase, newBase string) Archive {
+	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 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_unix.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_windows.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/diff.go

@@ -0,0 +1,279 @@
+package archive
+
+import (
+	"archive/tar"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools"
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools"
+	"github.com/fsouza/go-dockerclient/external/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 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); 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); 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 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 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 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/example_changes.go

@@ -0,0 +1,97 @@
+// +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/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_linux.go

@@ -0,0 +1,16 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_unsupported.go

@@ -0,0 +1,16 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/whiteouts.go

@@ -0,0 +1,23 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/wrap.go

@@ -0,0 +1,59 @@
+package archive
+
+import (
+	"archive/tar"
+	"bytes"
+	"io/ioutil"
+)
+
+// 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) (Archive, 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 ioutil.NopCloser(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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils.go

@@ -0,0 +1,279 @@
+package fileutils
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"text/scanner"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+)
+
+// exclusion return true if the specified pattern is an exclusion
+func exclusion(pattern string) bool {
+	return pattern[0] == '!'
+}
+
+// empty return 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 it's 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, "/"))
+	}
+
+	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
+	parentPath := filepath.Dir(file)
+	parentPathDirs := strings.Split(parentPath, "/")
+
+	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], "/"),
+					strings.Join(parentPathDirs[:len(patDirs[i])], "/"))
+			}
+		}
+
+		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.
+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 strings.Index(".$", string(ch)) != -1 {
+			// Escape some regexp special chars that have no meaning
+			// in golang's filepath.Match
+			regStr += `\` + string(ch)
+		} else if ch == '\\' {
+			// escape next char. Note that a trailing \ in the pattern
+			// will be left alone (but need to escape it)
+			if sl == `\` {
+				// On windows map "\" to "\\", meaning an escaped backslash,
+				// and then just continue because filepath.Match on
+				// Windows doesn't allow escaping at all
+				regStr += escSL
+				continue
+			}
+			if scan.Peek() != scanner.EOF {
+				regStr += `\` + string(scan.Next())
+			} else {
+				regStr += `\`
+			}
+		} else {
+			regStr += string(ch)
+		}
+	}
+
+	regStr += "$"
+
+	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 remove
+// 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils_unix.go

@@ -0,0 +1,22 @@
+// +build linux freebsd
+
+package fileutils
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils_windows.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir/homedir.go

@@ -0,0 +1,39 @@
+package homedir
+
+import (
+	"os"
+	"runtime"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user"
+)
+
+// Key returns the env var name for the user's home dir based on
+// the platform being run on
+func Key() string {
+	if runtime.GOOS == "windows" {
+		return "USERPROFILE"
+	}
+	return "HOME"
+}
+
+// Get returns the home directory of the current user with the help of
+// environment variables depending on the target operating system.
+// Returned path should be used with "path/filepath" to form new paths.
+func Get() string {
+	home := os.Getenv(Key())
+	if home == "" && runtime.GOOS != "windows" {
+		if u, err := user.CurrentUser(); err == nil {
+			return u.Home
+		}
+	}
+	return home
+}
+
+// GetShortcutString returns the string that is shortcut to user's home directory
+// in the native shell of the platform running on.
+func GetShortcutString() string {
+	if runtime.GOOS == "windows" {
+		return "%USERPROFILE%" // be careful while using in format functions
+	}
+	return "~"
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools/idtools.go

@@ -0,0 +1,195 @@
+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)
+}
+
+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 == "" {
+			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 {
+			// return the first entry for a user; ignores potential for multiple ranges per user
+			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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools/idtools_unix.go

@@ -0,0 +1,60 @@
+// +build !windows
+
+package idtools
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system"
+)
+
+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
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools/idtools_windows.go

@@ -0,0 +1,18 @@
+// +build windows
+
+package idtools
+
+import (
+	"os"
+
+	"github.com/fsouza/go-dockerclient/external/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
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools/usergroupadd_linux.go

@@ -0,0 +1,155 @@
+package idtools
+
+import (
+	"fmt"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"syscall"
+)
+
+// add a user and/or group to Linux /etc/passwd, /etc/group using standard
+// Linux distribution commands:
+// adduser --uid <id> --shell /bin/login --no-create-home --disabled-login --ingroup <groupname> <username>
+// useradd -M -u <id> -s /bin/nologin -N -g <groupname> <username>
+// addgroup --gid <id> <groupname>
+// groupadd -g <id> <groupname>
+
+const baseUID int = 10000
+const baseGID int = 10000
+const idMAX int = 65534
+
+var (
+	userCommand  string
+	groupCommand string
+
+	cmdTemplates = map[string]string{
+		"adduser":  "--uid %d --shell /bin/false --no-create-home --disabled-login --ingroup %s %s",
+		"useradd":  "-M -u %d -s /bin/false -N -g %s %s",
+		"addgroup": "--gid %d %s",
+		"groupadd": "-g %d %s",
+	}
+)
+
+func init() {
+	// 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 _, err := resolveBinary("addgroup"); err == nil {
+		groupCommand = "addgroup"
+	} else if _, err := resolveBinary("groupadd"); err == nil {
+		groupCommand = "groupadd"
+	}
+}
+
+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)
+}
+
+// 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.
+// This new user's /etc/sub{uid,gid} ranges will be used for user namespace
+// mapping ranges in containers.
+func AddNamespaceRangesUser(name string) (int, int, error) {
+	// Find unused uid, gid pair
+	uid, err := findUnusedUID(baseUID)
+	if err != nil {
+		return -1, -1, fmt.Errorf("Unable to find unused UID: %v", err)
+	}
+	gid, err := findUnusedGID(baseGID)
+	if err != nil {
+		return -1, -1, fmt.Errorf("Unable to find unused GID: %v", err)
+	}
+
+	// First add the group that we will use
+	if err := addGroup(name, gid); err != nil {
+		return -1, -1, fmt.Errorf("Error adding group %q: %v", name, err)
+	}
+	// Add the user as a member of the group
+	if err := addUser(name, uid, name); err != nil {
+		return -1, -1, fmt.Errorf("Error adding user %q: %v", name, err)
+	}
+	return uid, gid, nil
+}
+
+func addUser(userName string, uid int, groupName string) error {
+
+	if userCommand == "" {
+		return fmt.Errorf("Cannot add user; no useradd/adduser binary found")
+	}
+	args := fmt.Sprintf(cmdTemplates[userCommand], uid, groupName, userName)
+	return execAddCmd(userCommand, args)
+}
+
+func addGroup(groupName string, gid int) error {
+
+	if groupCommand == "" {
+		return fmt.Errorf("Cannot add group; no groupadd/addgroup binary found")
+	}
+	args := fmt.Sprintf(cmdTemplates[groupCommand], gid, groupName)
+	// only error out if the error isn't that the group already exists
+	// if the group exists then our needs are already met
+	if err := execAddCmd(groupCommand, args); err != nil && !strings.Contains(err.Error(), "already exists") {
+		return err
+	}
+	return nil
+}
+
+func execAddCmd(cmd, args string) error {
+	execCmd := exec.Command(cmd, strings.Split(args, " ")...)
+	out, err := execCmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("Failed to add user/group with error: %v; output: %q", err, string(out))
+	}
+	return nil
+}
+
+func findUnusedUID(startUID int) (int, error) {
+	return findUnused("passwd", startUID)
+}
+
+func findUnusedGID(startGID int) (int, error) {
+	return findUnused("group", startGID)
+}
+
+func findUnused(file string, id int) (int, error) {
+	for {
+		cmdStr := fmt.Sprintf("cat /etc/%s | cut -d: -f3 | grep '^%d$'", file, id)
+		cmd := exec.Command("sh", "-c", cmdStr)
+		if err := cmd.Run(); err != nil {
+			// if a non-zero return code occurs, then we know the ID was not found
+			// and is usable
+			if exiterr, ok := err.(*exec.ExitError); ok {
+				// The program has exited with an exit code != 0
+				if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {
+					if status.ExitStatus() == 1 {
+						//no match, we can use this ID
+						return id, nil
+					}
+				}
+			}
+			return -1, fmt.Errorf("Error looking in /etc/%s for unused ID: %v", file, err)
+		}
+		id++
+		if id > idMAX {
+			return -1, fmt.Errorf("Maximum id in %q reached with finding unused numeric ID", file)
+		}
+	}
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/idtools/usergroupadd_unsupported.go

@@ -0,0 +1,12 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/bytespipe.go

@@ -0,0 +1,152 @@
+package ioutils
+
+import (
+	"errors"
+	"io"
+	"sync"
+)
+
+// maxCap is the highest capacity to use in byte slices that buffer data.
+const maxCap = 1e6
+
+// 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
+
+// ErrClosed is returned when Write is called on a closed BytesPipe.
+var ErrClosed = errors.New("write to closed BytesPipe")
+
+// 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      [][]byte // slice of byte-slices of buffered data
+	lastRead int      // index in the first slice to a read point
+	bufLen   int      // length of data buffered over the slices
+	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(buf []byte) *BytesPipe {
+	if cap(buf) == 0 {
+		buf = make([]byte, 0, 64)
+	}
+	bp := &BytesPipe{
+		buf: [][]byte{buf[:0]},
+	}
+	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()
+	defer bp.mu.Unlock()
+	written := 0
+	for {
+		if bp.closeErr != nil {
+			return written, ErrClosed
+		}
+		// write data to the last buffer
+		b := bp.buf[len(bp.buf)-1]
+		// copy data to the current empty allocated area
+		n := copy(b[len(b):cap(b)], p)
+		// increment buffered data length
+		bp.bufLen += n
+		// include written data in last buffer
+		bp.buf[len(bp.buf)-1] = b[:len(b)+n]
+
+		written += n
+
+		// 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:]
+
+		// block if too much data is still in the buffer
+		for bp.bufLen >= blockThreshold {
+			bp.wait.Wait()
+		}
+
+		// allocate slice that has twice the size of the last unless maximum reached
+		nextCap := 2 * cap(bp.buf[len(bp.buf)-1])
+		if nextCap > maxCap {
+			nextCap = maxCap
+		}
+		// add new byte slice to the buffers slice and continue writing
+		bp.buf = append(bp.buf, make([]byte, 0, nextCap))
+	}
+	bp.wait.Broadcast()
+	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)
+}
+
+func (bp *BytesPipe) len() int {
+	return bp.bufLen - bp.lastRead
+}
+
+// Read reads bytes from BytesPipe.
+// Data could be read only once.
+func (bp *BytesPipe) Read(p []byte) (n int, err error) {
+	bp.mu.Lock()
+	defer bp.mu.Unlock()
+	if bp.len() == 0 {
+		if bp.closeErr != nil {
+			return 0, bp.closeErr
+		}
+		bp.wait.Wait()
+		if bp.len() == 0 && bp.closeErr != nil {
+			return 0, bp.closeErr
+		}
+	}
+	for {
+		read := copy(p, bp.buf[0][bp.lastRead:])
+		n += read
+		bp.lastRead += read
+		if bp.len() == 0 {
+			// we have read everything. reset to the beginning.
+			bp.lastRead = 0
+			bp.bufLen -= len(bp.buf[0])
+			bp.buf[0] = bp.buf[0][:0]
+			break
+		}
+		// break if everything was read
+		if len(p) == read {
+			break
+		}
+		// more buffered data and more asked. read from next slice.
+		p = p[read:]
+		bp.lastRead = 0
+		bp.bufLen -= len(bp.buf[0])
+		bp.buf[0] = nil     // throw away old slice
+		bp.buf = bp.buf[1:] // switch to next
+	}
+	bp.wait.Broadcast()
+	return
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/fmt.go

@@ -0,0 +1,22 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/multireader.go

@@ -0,0 +1,226 @@
+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 rdr io.ReadSeeker
+	var rdrOffset int64
+
+	for i, rdr := range r.readers {
+		offsetTo, err := r.getOffsetToReader(rdr)
+		if err != nil {
+			return nil, -1, err
+		}
+		if offsetTo > offset {
+			rdr = r.readers[i-1]
+			rdrOffset = offsetTo - offset
+			break
+		}
+
+		if rdr == r.readers[len(r.readers)-1] {
+			rdrOffset = offsetTo + offset
+			break
+		}
+	}
+
+	return rdr, rdrOffset, 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}
+	}
+
+	bCap := int64(cap(b))
+	buf := bytes.NewBuffer(nil)
+	var rdr io.ReadSeeker
+
+	for _, rdr = range r.readers[r.pos.idx:] {
+		readBytes, err := io.CopyN(buf, rdr, bCap)
+		if err != nil && err != io.EOF {
+			return -1, err
+		}
+		bCap -= readBytes
+
+		if bCap == 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/readers.go

@@ -0,0 +1,154 @@
+package ioutils
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"io"
+
+	"github.com/fsouza/go-dockerclient/external/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 a 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler.go

@@ -0,0 +1,6 @@
+// +build !gccgo
+
+package ioutils
+
+func callSchedulerIfNecessary() {
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler_gccgo.go

@@ -0,0 +1,13 @@
+// +build gccgo
+
+package ioutils
+
+import (
+	"runtime"
+)
+
+func callSchedulerIfNecessary() {
+	//allow or force Go scheduler to switch context, without explicitly
+	//forcing this will make it hang when using gccgo implementation
+	runtime.Gosched()
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/temp_unix.go

@@ -0,0 +1,10 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/temp_windows.go

@@ -0,0 +1,18 @@
+// +build windows
+
+package ioutils
+
+import (
+	"io/ioutil"
+
+	"github.com/fsouza/go-dockerclient/external/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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writeflusher.go

@@ -0,0 +1,92 @@
+package ioutils
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"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 {
+	mu      sync.Mutex
+	w       io.Writer
+	flusher http.Flusher
+	flushed bool
+	closed  error
+
+	// TODO(stevvooe): Use channel for closed instead, remove mutex. Using a
+	// channel will allow one to properly order the operations.
+}
+
+var errWriteFlusherClosed = errors.New("writeflusher: closed")
+
+func (wf *WriteFlusher) Write(b []byte) (n int, err error) {
+	wf.mu.Lock()
+	defer wf.mu.Unlock()
+	if wf.closed != nil {
+		return 0, wf.closed
+	}
+
+	n, err = wf.w.Write(b)
+	wf.flush() // every write is a flush.
+	return n, err
+}
+
+// Flush the stream immediately.
+func (wf *WriteFlusher) Flush() {
+	wf.mu.Lock()
+	defer wf.mu.Unlock()
+
+	wf.flush()
+}
+
+// flush the stream immediately without taking a lock. Used internally.
+func (wf *WriteFlusher) flush() {
+	if wf.closed != nil {
+		return
+	}
+
+	wf.flushed = true
+	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.
+	wf.mu.Lock()
+	defer wf.mu.Unlock()
+
+	return wf.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.mu.Lock()
+	defer wf.mu.Unlock()
+
+	if wf.closed != nil {
+		return wf.closed
+	}
+
+	wf.closed = errWriteFlusherClosed
+	return nil
+}
+
+// NewWriteFlusher returns a new WriteFlusher.
+func NewWriteFlusher(w io.Writer) *WriteFlusher {
+	var flusher http.Flusher
+	if f, ok := w.(http.Flusher); ok {
+		flusher = f
+	} else {
+		flusher = &NopFlusher{}
+	}
+	return &WriteFlusher{w: w, flusher: flusher}
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writers.go

@@ -0,0 +1,66 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/longpath/longpath.go

@@ -0,0 +1,26 @@
+// 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools/pools.go

@@ -0,0 +1,119 @@
+// 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils"
+)
+
+var (
+	// BufioReader32KPool is a pool which returns bufio.Reader with a 32K buffer.
+	BufioReader32KPool *BufioReaderPool
+	// BufioWriter32KPool is a pool which returns bufio.Writer with a 32K buffer.
+	BufioWriter32KPool *BufioWriterPool
+)
+
+const buffer32K = 32 * 1024
+
+// BufioReaderPool is a bufio reader that uses sync.Pool.
+type BufioReaderPool struct {
+	pool sync.Pool
+}
+
+func init() {
+	BufioReader32KPool = newBufioReaderPoolWithSize(buffer32K)
+	BufioWriter32KPool = newBufioWriterPoolWithSize(buffer32K)
+}
+
+// newBufioReaderPoolWithSize is unexported because new pools should be
+// added here to be shared where required.
+func newBufioReaderPoolWithSize(size int) *BufioReaderPool {
+	pool := sync.Pool{
+		New: func() interface{} { return bufio.NewReaderSize(nil, size) },
+	}
+	return &BufioReaderPool{pool: pool}
+}
+
+// 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 {
+	pool := sync.Pool{
+		New: func() interface{} { return bufio.NewWriterSize(nil, size) },
+	}
+	return &BufioWriterPool{pool: pool}
+}
+
+// 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise/promise.go

@@ -0,0 +1,11 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy/stdcopy.go

@@ -0,0 +1,175 @@
+package stdcopy
+
+import (
+	"encoding/binary"
+	"errors"
+	"io"
+
+	"github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus"
+)
+
+const (
+	stdWriterPrefixLen = 8
+	stdWriterFdIndex   = 0
+	stdWriterSizeIndex = 4
+
+	startingBufLen = 32*1024 + stdWriterPrefixLen + 1
+)
+
+// StdType prefixes type and length to standard stream.
+type StdType [stdWriterPrefixLen]byte
+
+var (
+	// Stdin represents standard input stream type.
+	Stdin = StdType{0: 0}
+	// Stdout represents standard output stream type.
+	Stdout = StdType{0: 1}
+	// Stderr represents standard error steam type.
+	Stderr = StdType{0: 2}
+)
+
+// StdWriter is wrapper of io.Writer with extra customized info.
+type StdWriter struct {
+	io.Writer
+	prefix  StdType
+	sizeBuf []byte
+}
+
+func (w *StdWriter) Write(buf []byte) (n int, err error) {
+	var n1, n2 int
+	if w == nil || w.Writer == nil {
+		return 0, errors.New("Writer not instantiated")
+	}
+	binary.BigEndian.PutUint32(w.prefix[4:], uint32(len(buf)))
+	n1, err = w.Writer.Write(w.prefix[:])
+	if err != nil {
+		n = n1 - stdWriterPrefixLen
+	} else {
+		n2, err = w.Writer.Write(buf)
+		n = n1 + n2 - stdWriterPrefixLen
+	}
+	if n < 0 {
+		n = 0
+	}
+	return
+}
+
+// NewStdWriter instantiates a new Writer.
+// Everything written to it will be encapsulated using a custom format,
+// and written to the underlying `w` stream.
+// This allows multiple write streams (e.g. stdout and stderr) to be muxed into a single connection.
+// `t` indicates the id of the stream to encapsulate.
+// It can be stdcopy.Stdin, stdcopy.Stdout, stdcopy.Stderr.
+func NewStdWriter(w io.Writer, t StdType) *StdWriter {
+	return &StdWriter{
+		Writer:  w,
+		prefix:  t,
+		sizeBuf: make([]byte, 4),
+	}
+}
+
+var errInvalidStdHeader = errors.New("Unrecognized input header")
+
+// StdCopy is a modified version of io.Copy.
+//
+// StdCopy will demultiplex `src`, assuming that it contains two streams,
+// previously multiplexed together using a StdWriter instance.
+// As it reads from `src`, StdCopy will write to `dstout` and `dsterr`.
+//
+// StdCopy will read until it hits EOF on `src`. It will then return a nil error.
+// In other words: if `err` is non nil, it indicates a real underlying error.
+//
+// `written` will hold the total number of bytes written to `dstout` and `dsterr`.
+func StdCopy(dstout, dsterr io.Writer, src io.Reader) (written int64, err error) {
+	var (
+		buf       = make([]byte, startingBufLen)
+		bufLen    = len(buf)
+		nr, nw    int
+		er, ew    error
+		out       io.Writer
+		frameSize int
+	)
+
+	for {
+		// Make sure we have at least a full header
+		for nr < stdWriterPrefixLen {
+			var nr2 int
+			nr2, er = src.Read(buf[nr:])
+			nr += nr2
+			if er == io.EOF {
+				if nr < stdWriterPrefixLen {
+					logrus.Debugf("Corrupted prefix: %v", buf[:nr])
+					return written, nil
+				}
+				break
+			}
+			if er != nil {
+				logrus.Debugf("Error reading header: %s", er)
+				return 0, er
+			}
+		}
+
+		// Check the first byte to know where to write
+		switch buf[stdWriterFdIndex] {
+		case 0:
+			fallthrough
+		case 1:
+			// Write on stdout
+			out = dstout
+		case 2:
+			// Write on stderr
+			out = dsterr
+		default:
+			logrus.Debugf("Error selecting output fd: (%d)", buf[stdWriterFdIndex])
+			return 0, errInvalidStdHeader
+		}
+
+		// Retrieve the size of the frame
+		frameSize = int(binary.BigEndian.Uint32(buf[stdWriterSizeIndex : stdWriterSizeIndex+4]))
+		logrus.Debugf("framesize: %d", frameSize)
+
+		// Check if the buffer is big enough to read the frame.
+		// Extend it if necessary.
+		if frameSize+stdWriterPrefixLen > bufLen {
+			logrus.Debugf("Extending buffer cap by %d (was %d)", frameSize+stdWriterPrefixLen-bufLen+1, len(buf))
+			buf = append(buf, make([]byte, frameSize+stdWriterPrefixLen-bufLen+1)...)
+			bufLen = len(buf)
+		}
+
+		// While the amount of bytes read is less than the size of the frame + header, we keep reading
+		for nr < frameSize+stdWriterPrefixLen {
+			var nr2 int
+			nr2, er = src.Read(buf[nr:])
+			nr += nr2
+			if er == io.EOF {
+				if nr < frameSize+stdWriterPrefixLen {
+					logrus.Debugf("Corrupted frame: %v", buf[stdWriterPrefixLen:nr])
+					return written, nil
+				}
+				break
+			}
+			if er != nil {
+				logrus.Debugf("Error reading frame: %s", er)
+				return 0, er
+			}
+		}
+
+		// Write the retrieved frame (without header)
+		nw, ew = out.Write(buf[stdWriterPrefixLen : frameSize+stdWriterPrefixLen])
+		if ew != nil {
+			logrus.Debugf("Error writing frame: %s", ew)
+			return 0, ew
+		}
+		// If the frame has not been fully written: error
+		if nw != frameSize {
+			logrus.Debugf("Error Short Write: (%d on %d)", nw, frameSize)
+			return 0, io.ErrShortWrite
+		}
+		written += int64(nw)
+
+		// Move the rest of the buffer to the beginning
+		copy(buf, buf[frameSize+stdWriterPrefixLen:])
+		// Move the index
+		nr -= frameSize + stdWriterPrefixLen
+	}
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/chtimes.go

@@ -0,0 +1,47 @@
+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
+	}
+
+	return nil
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/errors.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/events_windows.go

@@ -0,0 +1,83 @@
+package system
+
+// This file implements syscalls for Win32 events which are not implemented
+// in golang.
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+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 *syscall.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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys.go

@@ -0,0 +1,19 @@
+// +build !windows
+
+package system
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// 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)
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys_windows.go

@@ -0,0 +1,82 @@
+// +build windows
+
+package system
+
+import (
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"syscall"
+)
+
+// MkdirAll implementation that is volume path aware for Windows.
+func MkdirAll(path string, perm os.FileMode) error {
+	if re := regexp.MustCompile(`^\\\\\?\\Volume{[a-z0-9-]+}$`); re.MatchString(path) {
+		return nil
+	}
+
+	// The rest of this method is copied from os.MkdirAll and should be kept
+	// as-is to ensure compatibility.
+
+	// Fast path: if we can tell whether path is a directory or file, stop with success or error.
+	dir, err := os.Stat(path)
+	if err == nil {
+		if dir.IsDir() {
+			return nil
+		}
+		return &os.PathError{
+			Op:   "mkdir",
+			Path: path,
+			Err:  syscall.ENOTDIR,
+		}
+	}
+
+	// Slow path: make sure parent exists and then call Mkdir for path.
+	i := len(path)
+	for i > 0 && os.IsPathSeparator(path[i-1]) { // Skip trailing path separator.
+		i--
+	}
+
+	j := i
+	for j > 0 && !os.IsPathSeparator(path[j-1]) { // Scan backward over element.
+		j--
+	}
+
+	if j > 1 {
+		// Create parent
+		err = MkdirAll(path[0:j-1], perm)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Parent now exists; invoke Mkdir and use its result.
+	err = os.Mkdir(path, perm)
+	if err != nil {
+		// Handle arguments like "foo/." by
+		// double-checking that directory doesn't exist.
+		dir, err1 := os.Lstat(path)
+		if err1 == nil && dir.IsDir() {
+			return nil
+		}
+		return err
+	}
+	return nil
+}
+
+// IsAbs is a platform-specific wrapper for filepath.IsAbs. On Windows,
+// golang filepath.IsAbs does not consider a path \windows\system32 as absolute
+// as it doesn't start with a drive-letter/colon combination. However, in
+// docker we need to verify things such as WORKDIR /windows/system32 in
+// a Dockerfile (which gets translated to \windows\system32 when being processed
+// by the daemon. This SHOULD be treated as absolute from a docker processing
+// perspective.
+func IsAbs(path string) bool {
+	if !filepath.IsAbs(path) {
+		if !strings.HasPrefix(path, string(os.PathSeparator)) {
+			return false
+		}
+	}
+	return true
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat.go

@@ -0,0 +1,19 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat_windows.go

@@ -0,0 +1,25 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo.go

@@ -0,0 +1,17 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_linux.go

@@ -0,0 +1,66 @@
+package system
+
+import (
+	"bufio"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/fsouza/go-dockerclient/external/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 a 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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_unsupported.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_windows.go

@@ -0,0 +1,44 @@
+package system
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var (
+	modkernel32 = syscall.NewLazyDLL("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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod.go

@@ -0,0 +1,22 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod_windows.go

@@ -0,0 +1,13 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/path_unix.go

@@ -0,0 +1,8 @@
+// +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"

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/path_windows.go

@@ -0,0 +1,7 @@
+// +build windows
+
+package system
+
+// 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 = ""

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat.go

@@ -0,0 +1,53 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_freebsd.go

@@ -0,0 +1,27 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_linux.go

@@ -0,0 +1,33 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_solaris.go

@@ -0,0 +1,17 @@
+// +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
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_unsupported.go

@@ -0,0 +1,17 @@
+// +build !linux,!windows,!freebsd,!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.Mtimespec}, nil
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_windows.go

@@ -0,0 +1,43 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/syscall_unix.go

@@ -0,0 +1,11 @@
+// +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)
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/syscall_windows.go

@@ -0,0 +1,36 @@
+package system
+
+import (
+	"fmt"
+	"syscall"
+)
+
+// 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
+}
+
+// GetOSVersion gets the operating system version on Windows. Note that
+// docker.exe must be manifested to get the correct version information.
+func GetOSVersion() (OSVersion, error) {
+	var err error
+	osv := OSVersion{}
+	osv.Version, err = syscall.GetVersion()
+	if err != nil {
+		return osv, fmt.Errorf("Failed to call GetVersion()")
+	}
+	osv.MajorVersion = uint8(osv.Version & 0xFF)
+	osv.MinorVersion = uint8(osv.Version >> 8 & 0xFF)
+	osv.Build = uint16(osv.Version >> 16)
+	return osv, nil
+}
+
+// Unmount is a platform-specific helper function to call
+// the unmount syscall. Not supported on Windows
+func Unmount(dest string) error {
+	return nil
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask.go

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

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask_windows.go

@@ -0,0 +1,9 @@
+// +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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_darwin.go

@@ -0,0 +1,8 @@
+package system
+
+import "syscall"
+
+// LUtimesNano is not supported by darwin platform.
+func LUtimesNano(path string, ts []syscall.Timespec) error {
+	return ErrNotSupportedPlatform
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_freebsd.go

@@ -0,0 +1,22 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_linux.go

@@ -0,0 +1,26 @@
+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/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_unsupported.go

@@ -0,0 +1,10 @@
+// +build !linux,!freebsd,!darwin
+
+package system
+
+import "syscall"
+
+// LUtimesNano is not supported on platforms other than linux, freebsd and darwin.
+func LUtimesNano(path string, ts []syscall.Timespec) error {
+	return ErrNotSupportedPlatform
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_linux.go

@@ -0,0 +1,63 @@
+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
+}

vendor/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_unsupported.go

@@ -0,0 +1,13 @@
+// +build !linux
+
+package system
+
+// Lgetxattr is not supported on platforms other than linux.
+func Lgetxattr(path string, attr string) ([]byte, error) {
+	return nil, ErrNotSupportedPlatform
+}
+
+// Lsetxattr is not supported on platforms other than linux.
+func Lsetxattr(path string, attr string, data []byte, flags int) error {
+	return ErrNotSupportedPlatform
+}

vendor/github.com/opencontainers/runc/Godeps/_workspace/src/github.com/docker/docker/pkg/mflag/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2014-2015 The Docker & Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/opencontainers/runc/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.APACHE

@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      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
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          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 2014-2015 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
+
+       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.

vendor/github.com/opencontainers/runc/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.BSD

@@ -0,0 +1,27 @@
+Copyright (c) 2014-2015 The Docker & Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.