vendor: update all dependencies

vendor/cloud.google.com/go/longrunning/autogen/doc.go

@@ -0,0 +1,40 @@
+// Copyright 2017, Google Inc. All rights reserved.
+//
+// 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.
+
+// AUTO-GENERATED CODE. DO NOT EDIT.
+
+// Package longrunning is an experimental, auto-generated package for the
+// Google Long Running Operations API.
+//
+//
+// Use the client at cloud.google.com/go/longrunning in preference to this.
+package longrunning // import "cloud.google.com/go/longrunning/autogen"
+
+import (
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/metadata"
+)
+
+func insertXGoog(ctx context.Context, val []string) context.Context {
+	md, _ := metadata.FromOutgoingContext(ctx)
+	md = md.Copy()
+	md["x-goog-api-client"] = val
+	return metadata.NewOutgoingContext(ctx, md)
+}
+
+// DefaultAuthScopes reports the authentication scopes required
+// by this package.
+func DefaultAuthScopes() []string {
+	return []string{}
+}

vendor/cloud.google.com/go/longrunning/autogen/from_conn.go

@@ -0,0 +1,34 @@
+// Copyright 2017, Google Inc. All rights reserved.
+//
+// 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.
+
+package longrunning
+
+import (
+	longrunningpb "google.golang.org/genproto/googleapis/longrunning"
+	"google.golang.org/grpc"
+)
+
+// InternalFromConn is for use by the google Cloud Libraries only.
+//
+// InternalFromConn creates OperationsClient from available connection.
+func InternalFromConn(conn *grpc.ClientConn) *OperationsClient {
+	c := &OperationsClient{
+		conn:        conn,
+		CallOptions: defaultOperationsCallOptions(),
+
+		operationsClient: longrunningpb.NewOperationsClient(conn),
+	}
+	c.SetGoogleClientInfo()
+	return c
+}

vendor/cloud.google.com/go/longrunning/autogen/mock_test.go

@@ -0,0 +1,381 @@
+// Copyright 2017, Google Inc. All rights reserved.
+//
+// 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.
+
+// AUTO-GENERATED CODE. DO NOT EDIT.
+
+package longrunning
+
+import (
+	emptypb "github.com/golang/protobuf/ptypes/empty"
+	longrunningpb "google.golang.org/genproto/googleapis/longrunning"
+)
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"golang.org/x/net/context"
+	"google.golang.org/api/option"
+	status "google.golang.org/genproto/googleapis/rpc/status"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	gstatus "google.golang.org/grpc/status"
+)
+
+var _ = io.EOF
+var _ = ptypes.MarshalAny
+var _ status.Status
+
+type mockOperationsServer struct {
+	// Embed for forward compatibility.
+	// Tests will keep working if more methods are added
+	// in the future.
+	longrunningpb.OperationsServer
+
+	reqs []proto.Message
+
+	// If set, all calls return this error.
+	err error
+
+	// responses to return if err == nil
+	resps []proto.Message
+}
+
+func (s *mockOperationsServer) ListOperations(ctx context.Context, req *longrunningpb.ListOperationsRequest) (*longrunningpb.ListOperationsResponse, error) {
+	md, _ := metadata.FromIncomingContext(ctx)
+	if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") {
+		return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg)
+	}
+	s.reqs = append(s.reqs, req)
+	if s.err != nil {
+		return nil, s.err
+	}
+	return s.resps[0].(*longrunningpb.ListOperationsResponse), nil
+}
+
+func (s *mockOperationsServer) GetOperation(ctx context.Context, req *longrunningpb.GetOperationRequest) (*longrunningpb.Operation, error) {
+	md, _ := metadata.FromIncomingContext(ctx)
+	if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") {
+		return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg)
+	}
+	s.reqs = append(s.reqs, req)
+	if s.err != nil {
+		return nil, s.err
+	}
+	return s.resps[0].(*longrunningpb.Operation), nil
+}
+
+func (s *mockOperationsServer) DeleteOperation(ctx context.Context, req *longrunningpb.DeleteOperationRequest) (*emptypb.Empty, error) {
+	md, _ := metadata.FromIncomingContext(ctx)
+	if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") {
+		return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg)
+	}
+	s.reqs = append(s.reqs, req)
+	if s.err != nil {
+		return nil, s.err
+	}
+	return s.resps[0].(*emptypb.Empty), nil
+}
+
+func (s *mockOperationsServer) CancelOperation(ctx context.Context, req *longrunningpb.CancelOperationRequest) (*emptypb.Empty, error) {
+	md, _ := metadata.FromIncomingContext(ctx)
+	if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") {
+		return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg)
+	}
+	s.reqs = append(s.reqs, req)
+	if s.err != nil {
+		return nil, s.err
+	}
+	return s.resps[0].(*emptypb.Empty), nil
+}
+
+// clientOpt is the option tests should use to connect to the test server.
+// It is initialized by TestMain.
+var clientOpt option.ClientOption
+
+var (
+	mockOperations mockOperationsServer
+)
+
+func TestMain(m *testing.M) {
+	flag.Parse()
+
+	serv := grpc.NewServer()
+	longrunningpb.RegisterOperationsServer(serv, &mockOperations)
+
+	lis, err := net.Listen("tcp", "localhost:0")
+	if err != nil {
+		log.Fatal(err)
+	}
+	go serv.Serve(lis)
+
+	conn, err := grpc.Dial(lis.Addr().String(), grpc.WithInsecure())
+	if err != nil {
+		log.Fatal(err)
+	}
+	clientOpt = option.WithGRPCConn(conn)
+
+	os.Exit(m.Run())
+}
+
+func TestOperationsGetOperation(t *testing.T) {
+	var name2 string = "name2-1052831874"
+	var done bool = true
+	var expectedResponse = &longrunningpb.Operation{
+		Name: name2,
+		Done: done,
+	}
+
+	mockOperations.err = nil
+	mockOperations.reqs = nil
+
+	mockOperations.resps = append(mockOperations.resps[:0], expectedResponse)
+
+	var name string = "name3373707"
+	var request = &longrunningpb.GetOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := c.GetOperation(context.Background(), request)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if want, got := request, mockOperations.reqs[0]; !proto.Equal(want, got) {
+		t.Errorf("wrong request %q, want %q", got, want)
+	}
+
+	if want, got := expectedResponse, resp; !proto.Equal(want, got) {
+		t.Errorf("wrong response %q, want %q)", got, want)
+	}
+}
+
+func TestOperationsGetOperationError(t *testing.T) {
+	errCode := codes.PermissionDenied
+	mockOperations.err = gstatus.Error(errCode, "test error")
+
+	var name string = "name3373707"
+	var request = &longrunningpb.GetOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := c.GetOperation(context.Background(), request)
+
+	if st, ok := gstatus.FromError(err); !ok {
+		t.Errorf("got error %v, expected grpc error", err)
+	} else if c := st.Code(); c != errCode {
+		t.Errorf("got error code %q, want %q", c, errCode)
+	}
+	_ = resp
+}
+func TestOperationsListOperations(t *testing.T) {
+	var nextPageToken string = ""
+	var operationsElement *longrunningpb.Operation = &longrunningpb.Operation{}
+	var operations = []*longrunningpb.Operation{operationsElement}
+	var expectedResponse = &longrunningpb.ListOperationsResponse{
+		NextPageToken: nextPageToken,
+		Operations:    operations,
+	}
+
+	mockOperations.err = nil
+	mockOperations.reqs = nil
+
+	mockOperations.resps = append(mockOperations.resps[:0], expectedResponse)
+
+	var name string = "name3373707"
+	var filter string = "filter-1274492040"
+	var request = &longrunningpb.ListOperationsRequest{
+		Name:   name,
+		Filter: filter,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := c.ListOperations(context.Background(), request).Next()
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if want, got := request, mockOperations.reqs[0]; !proto.Equal(want, got) {
+		t.Errorf("wrong request %q, want %q", got, want)
+	}
+
+	want := (interface{})(expectedResponse.Operations[0])
+	got := (interface{})(resp)
+	var ok bool
+
+	switch want := (want).(type) {
+	case proto.Message:
+		ok = proto.Equal(want, got.(proto.Message))
+	default:
+		ok = want == got
+	}
+	if !ok {
+		t.Errorf("wrong response %q, want %q)", got, want)
+	}
+}
+
+func TestOperationsListOperationsError(t *testing.T) {
+	errCode := codes.PermissionDenied
+	mockOperations.err = gstatus.Error(errCode, "test error")
+
+	var name string = "name3373707"
+	var filter string = "filter-1274492040"
+	var request = &longrunningpb.ListOperationsRequest{
+		Name:   name,
+		Filter: filter,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := c.ListOperations(context.Background(), request).Next()
+
+	if st, ok := gstatus.FromError(err); !ok {
+		t.Errorf("got error %v, expected grpc error", err)
+	} else if c := st.Code(); c != errCode {
+		t.Errorf("got error code %q, want %q", c, errCode)
+	}
+	_ = resp
+}
+func TestOperationsCancelOperation(t *testing.T) {
+	var expectedResponse *emptypb.Empty = &emptypb.Empty{}
+
+	mockOperations.err = nil
+	mockOperations.reqs = nil
+
+	mockOperations.resps = append(mockOperations.resps[:0], expectedResponse)
+
+	var name string = "name3373707"
+	var request = &longrunningpb.CancelOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = c.CancelOperation(context.Background(), request)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if want, got := request, mockOperations.reqs[0]; !proto.Equal(want, got) {
+		t.Errorf("wrong request %q, want %q", got, want)
+	}
+
+}
+
+func TestOperationsCancelOperationError(t *testing.T) {
+	errCode := codes.PermissionDenied
+	mockOperations.err = gstatus.Error(errCode, "test error")
+
+	var name string = "name3373707"
+	var request = &longrunningpb.CancelOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = c.CancelOperation(context.Background(), request)
+
+	if st, ok := gstatus.FromError(err); !ok {
+		t.Errorf("got error %v, expected grpc error", err)
+	} else if c := st.Code(); c != errCode {
+		t.Errorf("got error code %q, want %q", c, errCode)
+	}
+}
+func TestOperationsDeleteOperation(t *testing.T) {
+	var expectedResponse *emptypb.Empty = &emptypb.Empty{}
+
+	mockOperations.err = nil
+	mockOperations.reqs = nil
+
+	mockOperations.resps = append(mockOperations.resps[:0], expectedResponse)
+
+	var name string = "name3373707"
+	var request = &longrunningpb.DeleteOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = c.DeleteOperation(context.Background(), request)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if want, got := request, mockOperations.reqs[0]; !proto.Equal(want, got) {
+		t.Errorf("wrong request %q, want %q", got, want)
+	}
+
+}
+
+func TestOperationsDeleteOperationError(t *testing.T) {
+	errCode := codes.PermissionDenied
+	mockOperations.err = gstatus.Error(errCode, "test error")
+
+	var name string = "name3373707"
+	var request = &longrunningpb.DeleteOperationRequest{
+		Name: name,
+	}
+
+	c, err := NewOperationsClient(context.Background(), clientOpt)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = c.DeleteOperation(context.Background(), request)
+
+	if st, ok := gstatus.FromError(err); !ok {
+		t.Errorf("got error %v, expected grpc error", err)
+	} else if c := st.Code(); c != errCode {
+		t.Errorf("got error code %q, want %q", c, errCode)
+	}
+}

vendor/cloud.google.com/go/longrunning/autogen/operations_client.go

@@ -0,0 +1,266 @@
+// Copyright 2017, Google Inc. All rights reserved.
+//
+// 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.
+
+// AUTO-GENERATED CODE. DO NOT EDIT.
+
+package longrunning
+
+import (
+	"math"
+	"time"
+
+	"cloud.google.com/go/internal/version"
+	gax "github.com/googleapis/gax-go"
+	"golang.org/x/net/context"
+	"google.golang.org/api/iterator"
+	"google.golang.org/api/option"
+	"google.golang.org/api/transport"
+	longrunningpb "google.golang.org/genproto/googleapis/longrunning"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+)
+
+// OperationsCallOptions contains the retry settings for each method of OperationsClient.
+type OperationsCallOptions struct {
+	GetOperation    []gax.CallOption
+	ListOperations  []gax.CallOption
+	CancelOperation []gax.CallOption
+	DeleteOperation []gax.CallOption
+}
+
+func defaultOperationsClientOptions() []option.ClientOption {
+	return []option.ClientOption{
+		option.WithEndpoint("longrunning.googleapis.com:443"),
+		option.WithScopes(DefaultAuthScopes()...),
+	}
+}
+
+func defaultOperationsCallOptions() *OperationsCallOptions {
+	retry := map[[2]string][]gax.CallOption{
+		{"default", "idempotent"}: {
+			gax.WithRetry(func() gax.Retryer {
+				return gax.OnCodes([]codes.Code{
+					codes.DeadlineExceeded,
+					codes.Unavailable,
+				}, gax.Backoff{
+					Initial:    100 * time.Millisecond,
+					Max:        60000 * time.Millisecond,
+					Multiplier: 1.3,
+				})
+			}),
+		},
+	}
+	return &OperationsCallOptions{
+		GetOperation:    retry[[2]string{"default", "idempotent"}],
+		ListOperations:  retry[[2]string{"default", "idempotent"}],
+		CancelOperation: retry[[2]string{"default", "idempotent"}],
+		DeleteOperation: retry[[2]string{"default", "idempotent"}],
+	}
+}
+
+// OperationsClient is a client for interacting with Google Long Running Operations API.
+type OperationsClient struct {
+	// The connection to the service.
+	conn *grpc.ClientConn
+
+	// The gRPC API client.
+	operationsClient longrunningpb.OperationsClient
+
+	// The call options for this service.
+	CallOptions *OperationsCallOptions
+
+	// The metadata to be sent with each request.
+	xGoogHeader []string
+}
+
+// NewOperationsClient creates a new operations client.
+//
+// Manages long-running operations with an API service.
+//
+// When an API method normally takes long time to complete, it can be designed
+// to return [Operation][google.longrunning.Operation] to the client, and the client can use this
+// interface to receive the real response asynchronously by polling the
+// operation resource, or pass the operation resource to another API (such as
+// Google Cloud Pub/Sub API) to receive the response.  Any API service that
+// returns long-running operations should implement the `Operations` interface
+// so developers can have a consistent client experience.
+func NewOperationsClient(ctx context.Context, opts ...option.ClientOption) (*OperationsClient, error) {
+	conn, err := transport.DialGRPC(ctx, append(defaultOperationsClientOptions(), opts...)...)
+	if err != nil {
+		return nil, err
+	}
+	c := &OperationsClient{
+		conn:        conn,
+		CallOptions: defaultOperationsCallOptions(),
+
+		operationsClient: longrunningpb.NewOperationsClient(conn),
+	}
+	c.SetGoogleClientInfo()
+	return c, nil
+}
+
+// Connection returns the client's connection to the API service.
+func (c *OperationsClient) Connection() *grpc.ClientConn {
+	return c.conn
+}
+
+// Close closes the connection to the API service. The user should invoke this when
+// the client is no longer required.
+func (c *OperationsClient) Close() error {
+	return c.conn.Close()
+}
+
+// SetGoogleClientInfo sets the name and version of the application in
+// the `x-goog-api-client` header passed on each request. Intended for
+// use by Google-written clients.
+func (c *OperationsClient) SetGoogleClientInfo(keyval ...string) {
+	kv := append([]string{"gl-go", version.Go()}, keyval...)
+	kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
+	c.xGoogHeader = []string{gax.XGoogHeader(kv...)}
+}
+
+// GetOperation gets the latest state of a long-running operation.  Clients can use this
+// method to poll the operation result at intervals as recommended by the API
+// service.
+func (c *OperationsClient) GetOperation(ctx context.Context, req *longrunningpb.GetOperationRequest, opts ...gax.CallOption) (*longrunningpb.Operation, error) {
+	ctx = insertXGoog(ctx, c.xGoogHeader)
+	opts = append(c.CallOptions.GetOperation[0:len(c.CallOptions.GetOperation):len(c.CallOptions.GetOperation)], opts...)
+	var resp *longrunningpb.Operation
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.operationsClient.GetOperation(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+// ListOperations lists operations that match the specified filter in the request. If the
+// server doesn't support this method, it returns `UNIMPLEMENTED`.
+//
+// NOTE: the `name` binding below allows API services to override the binding
+// to use different resource name schemes, such as `users/*/operations`.
+func (c *OperationsClient) ListOperations(ctx context.Context, req *longrunningpb.ListOperationsRequest, opts ...gax.CallOption) *OperationIterator {
+	ctx = insertXGoog(ctx, c.xGoogHeader)
+	opts = append(c.CallOptions.ListOperations[0:len(c.CallOptions.ListOperations):len(c.CallOptions.ListOperations)], opts...)
+	it := &OperationIterator{}
+	it.InternalFetch = func(pageSize int, pageToken string) ([]*longrunningpb.Operation, string, error) {
+		var resp *longrunningpb.ListOperationsResponse
+		req.PageToken = pageToken
+		if pageSize > math.MaxInt32 {
+			req.PageSize = math.MaxInt32
+		} else {
+			req.PageSize = int32(pageSize)
+		}
+		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+			var err error
+			resp, err = c.operationsClient.ListOperations(ctx, req, settings.GRPC...)
+			return err
+		}, opts...)
+		if err != nil {
+			return nil, "", err
+		}
+		return resp.Operations, resp.NextPageToken, nil
+	}
+	fetch := func(pageSize int, pageToken string) (string, error) {
+		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
+		if err != nil {
+			return "", err
+		}
+		it.items = append(it.items, items...)
+		return nextPageToken, nil
+	}
+	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
+	return it
+}
+
+// CancelOperation starts asynchronous cancellation on a long-running operation.  The server
+// makes a best effort to cancel the operation, but success is not
+// guaranteed.  If the server doesn't support this method, it returns
+// `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
+// [Operations.GetOperation][google.longrunning.Operations.GetOperation] or
+// other methods to check whether the cancellation succeeded or whether the
+// operation completed despite cancellation. On successful cancellation,
+// the operation is not deleted; instead, it becomes an operation with
+// an [Operation.error][google.longrunning.Operation.error] value with a [google.rpc.Status.code][google.rpc.Status.code] of 1,
+// corresponding to `Code.CANCELLED`.
+func (c *OperationsClient) CancelOperation(ctx context.Context, req *longrunningpb.CancelOperationRequest, opts ...gax.CallOption) error {
+	ctx = insertXGoog(ctx, c.xGoogHeader)
+	opts = append(c.CallOptions.CancelOperation[0:len(c.CallOptions.CancelOperation):len(c.CallOptions.CancelOperation)], opts...)
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		_, err = c.operationsClient.CancelOperation(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	return err
+}
+
+// DeleteOperation deletes a long-running operation. This method indicates that the client is
+// no longer interested in the operation result. It does not cancel the
+// operation. If the server doesn't support this method, it returns
+// `google.rpc.Code.UNIMPLEMENTED`.
+func (c *OperationsClient) DeleteOperation(ctx context.Context, req *longrunningpb.DeleteOperationRequest, opts ...gax.CallOption) error {
+	ctx = insertXGoog(ctx, c.xGoogHeader)
+	opts = append(c.CallOptions.DeleteOperation[0:len(c.CallOptions.DeleteOperation):len(c.CallOptions.DeleteOperation)], opts...)
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		_, err = c.operationsClient.DeleteOperation(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	return err
+}
+
+// OperationIterator manages a stream of *longrunningpb.Operation.
+type OperationIterator struct {
+	items    []*longrunningpb.Operation
+	pageInfo *iterator.PageInfo
+	nextFunc func() error
+
+	// InternalFetch is for use by the Google Cloud Libraries only.
+	// It is not part of the stable interface of this package.
+	//
+	// InternalFetch returns results from a single call to the underlying RPC.
+	// The number of results is no greater than pageSize.
+	// If there are no more results, nextPageToken is empty and err is nil.
+	InternalFetch func(pageSize int, pageToken string) (results []*longrunningpb.Operation, nextPageToken string, err error)
+}
+
+// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
+func (it *OperationIterator) PageInfo() *iterator.PageInfo {
+	return it.pageInfo
+}
+
+// Next returns the next result. Its second return value is iterator.Done if there are no more
+// results. Once Next returns Done, all subsequent calls will return Done.
+func (it *OperationIterator) Next() (*longrunningpb.Operation, error) {
+	var item *longrunningpb.Operation
+	if err := it.nextFunc(); err != nil {
+		return item, err
+	}
+	item = it.items[0]
+	it.items = it.items[1:]
+	return item, nil
+}
+
+func (it *OperationIterator) bufLen() int {
+	return len(it.items)
+}
+
+func (it *OperationIterator) takeBuf() interface{} {
+	b := it.items
+	it.items = nil
+	return b
+}

vendor/cloud.google.com/go/longrunning/autogen/operations_client_example_test.go

@@ -0,0 +1,108 @@
+// Copyright 2017, Google Inc. All rights reserved.
+//
+// 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.
+
+// AUTO-GENERATED CODE. DO NOT EDIT.
+
+package longrunning_test
+
+import (
+	"cloud.google.com/go/longrunning/autogen"
+	"golang.org/x/net/context"
+	"google.golang.org/api/iterator"
+	longrunningpb "google.golang.org/genproto/googleapis/longrunning"
+)
+
+func ExampleNewOperationsClient() {
+	ctx := context.Background()
+	c, err := longrunning.NewOperationsClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use client.
+	_ = c
+}
+
+func ExampleOperationsClient_GetOperation() {
+	ctx := context.Background()
+	c, err := longrunning.NewOperationsClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+
+	req := &longrunningpb.GetOperationRequest{
+	// TODO: Fill request struct fields.
+	}
+	resp, err := c.GetOperation(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+	// TODO: Use resp.
+	_ = resp
+}
+
+func ExampleOperationsClient_ListOperations() {
+	ctx := context.Background()
+	c, err := longrunning.NewOperationsClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+
+	req := &longrunningpb.ListOperationsRequest{
+	// TODO: Fill request struct fields.
+	}
+	it := c.ListOperations(ctx, req)
+	for {
+		resp, err := it.Next()
+		if err == iterator.Done {
+			break
+		}
+		if err != nil {
+			// TODO: Handle error.
+		}
+		// TODO: Use resp.
+		_ = resp
+	}
+}
+
+func ExampleOperationsClient_CancelOperation() {
+	ctx := context.Background()
+	c, err := longrunning.NewOperationsClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+
+	req := &longrunningpb.CancelOperationRequest{
+	// TODO: Fill request struct fields.
+	}
+	err = c.CancelOperation(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+}
+
+func ExampleOperationsClient_DeleteOperation() {
+	ctx := context.Background()
+	c, err := longrunning.NewOperationsClient(ctx)
+	if err != nil {
+		// TODO: Handle error.
+	}
+
+	req := &longrunningpb.DeleteOperationRequest{
+	// TODO: Fill request struct fields.
+	}
+	err = c.DeleteOperation(ctx, req)
+	if err != nil {
+		// TODO: Handle error.
+	}
+}