Vendor main dependencies.

vendor/github.com/docker/docker/daemon/graphdriver/proxy.go

@@ -0,0 +1,252 @@
+package graphdriver
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"path/filepath"
+
+	"github.com/docker/docker/pkg/archive"
+	"github.com/docker/docker/pkg/idtools"
+	"github.com/docker/docker/pkg/plugingetter"
+)
+
+type graphDriverProxy struct {
+	name string
+	p    plugingetter.CompatPlugin
+}
+
+type graphDriverRequest struct {
+	ID         string            `json:",omitempty"`
+	Parent     string            `json:",omitempty"`
+	MountLabel string            `json:",omitempty"`
+	StorageOpt map[string]string `json:",omitempty"`
+}
+
+type graphDriverResponse struct {
+	Err      string            `json:",omitempty"`
+	Dir      string            `json:",omitempty"`
+	Exists   bool              `json:",omitempty"`
+	Status   [][2]string       `json:",omitempty"`
+	Changes  []archive.Change  `json:",omitempty"`
+	Size     int64             `json:",omitempty"`
+	Metadata map[string]string `json:",omitempty"`
+}
+
+type graphDriverInitRequest struct {
+	Home    string
+	Opts    []string        `json:"Opts"`
+	UIDMaps []idtools.IDMap `json:"UIDMaps"`
+	GIDMaps []idtools.IDMap `json:"GIDMaps"`
+}
+
+func (d *graphDriverProxy) Init(home string, opts []string, uidMaps, gidMaps []idtools.IDMap) error {
+	if !d.p.IsV1() {
+		if cp, ok := d.p.(plugingetter.CountedPlugin); ok {
+			// always acquire here, it will be cleaned up on daemon shutdown
+			cp.Acquire()
+		}
+	}
+	args := &graphDriverInitRequest{
+		Home:    home,
+		Opts:    opts,
+		UIDMaps: uidMaps,
+		GIDMaps: gidMaps,
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Init", args, &ret); err != nil {
+		return err
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) String() string {
+	return d.name
+}
+
+func (d *graphDriverProxy) CreateReadWrite(id, parent string, opts *CreateOpts) error {
+	args := &graphDriverRequest{
+		ID:     id,
+		Parent: parent,
+	}
+	if opts != nil {
+		args.MountLabel = opts.MountLabel
+		args.StorageOpt = opts.StorageOpt
+	}
+
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.CreateReadWrite", args, &ret); err != nil {
+		return err
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) Create(id, parent string, opts *CreateOpts) error {
+	args := &graphDriverRequest{
+		ID:     id,
+		Parent: parent,
+	}
+	if opts != nil {
+		args.MountLabel = opts.MountLabel
+		args.StorageOpt = opts.StorageOpt
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Create", args, &ret); err != nil {
+		return err
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) Remove(id string) error {
+	args := &graphDriverRequest{ID: id}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Remove", args, &ret); err != nil {
+		return err
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) Get(id, mountLabel string) (string, error) {
+	args := &graphDriverRequest{
+		ID:         id,
+		MountLabel: mountLabel,
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Get", args, &ret); err != nil {
+		return "", err
+	}
+	var err error
+	if ret.Err != "" {
+		err = errors.New(ret.Err)
+	}
+	return filepath.Join(d.p.BasePath(), ret.Dir), err
+}
+
+func (d *graphDriverProxy) Put(id string) error {
+	args := &graphDriverRequest{ID: id}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Put", args, &ret); err != nil {
+		return err
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) Exists(id string) bool {
+	args := &graphDriverRequest{ID: id}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Exists", args, &ret); err != nil {
+		return false
+	}
+	return ret.Exists
+}
+
+func (d *graphDriverProxy) Status() [][2]string {
+	args := &graphDriverRequest{}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Status", args, &ret); err != nil {
+		return nil
+	}
+	return ret.Status
+}
+
+func (d *graphDriverProxy) GetMetadata(id string) (map[string]string, error) {
+	args := &graphDriverRequest{
+		ID: id,
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.GetMetadata", args, &ret); err != nil {
+		return nil, err
+	}
+	if ret.Err != "" {
+		return nil, errors.New(ret.Err)
+	}
+	return ret.Metadata, nil
+}
+
+func (d *graphDriverProxy) Cleanup() error {
+	if !d.p.IsV1() {
+		if cp, ok := d.p.(plugingetter.CountedPlugin); ok {
+			// always release
+			defer cp.Release()
+		}
+	}
+
+	args := &graphDriverRequest{}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Cleanup", args, &ret); err != nil {
+		return nil
+	}
+	if ret.Err != "" {
+		return errors.New(ret.Err)
+	}
+	return nil
+}
+
+func (d *graphDriverProxy) Diff(id, parent string) (io.ReadCloser, error) {
+	args := &graphDriverRequest{
+		ID:     id,
+		Parent: parent,
+	}
+	body, err := d.p.Client().Stream("GraphDriver.Diff", args)
+	if err != nil {
+		return nil, err
+	}
+	return body, nil
+}
+
+func (d *graphDriverProxy) Changes(id, parent string) ([]archive.Change, error) {
+	args := &graphDriverRequest{
+		ID:     id,
+		Parent: parent,
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.Changes", args, &ret); err != nil {
+		return nil, err
+	}
+	if ret.Err != "" {
+		return nil, errors.New(ret.Err)
+	}
+
+	return ret.Changes, nil
+}
+
+func (d *graphDriverProxy) ApplyDiff(id, parent string, diff io.Reader) (int64, error) {
+	var ret graphDriverResponse
+	if err := d.p.Client().SendFile(fmt.Sprintf("GraphDriver.ApplyDiff?id=%s&parent=%s", id, parent), diff, &ret); err != nil {
+		return -1, err
+	}
+	if ret.Err != "" {
+		return -1, errors.New(ret.Err)
+	}
+	return ret.Size, nil
+}
+
+func (d *graphDriverProxy) DiffSize(id, parent string) (int64, error) {
+	args := &graphDriverRequest{
+		ID:     id,
+		Parent: parent,
+	}
+	var ret graphDriverResponse
+	if err := d.p.Client().Call("GraphDriver.DiffSize", args, &ret); err != nil {
+		return -1, err
+	}
+	if ret.Err != "" {
+		return -1, errors.New(ret.Err)
+	}
+	return ret.Size, nil
+}