Update dependencies

Among others, this updates minio-go, so that the new "eu-west-3" zone
for AWS is supported.

vendor/cloud.google.com/go/trace/apiv2/trace_client.go

@@ -0,0 +1,151 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// AUTO-GENERATED CODE. DO NOT EDIT.
+
+package trace
+
+import (
+	"time"
+
+	"cloud.google.com/go/internal/version"
+	gax "github.com/googleapis/gax-go"
+	"golang.org/x/net/context"
+	"google.golang.org/api/option"
+	"google.golang.org/api/transport"
+	cloudtracepb "google.golang.org/genproto/googleapis/devtools/cloudtrace/v2"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+)
+
+// CallOptions contains the retry settings for each method of Client.
+type CallOptions struct {
+	BatchWriteSpans []gax.CallOption
+	CreateSpan      []gax.CallOption
+}
+
+func defaultClientOptions() []option.ClientOption {
+	return []option.ClientOption{
+		option.WithEndpoint("cloudtrace.googleapis.com:443"),
+		option.WithScopes(DefaultAuthScopes()...),
+	}
+}
+
+func defaultCallOptions() *CallOptions {
+	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:        1000 * time.Millisecond,
+					Multiplier: 1.2,
+				})
+			}),
+		},
+	}
+	return &CallOptions{
+		BatchWriteSpans: retry[[2]string{"default", "non_idempotent"}],
+		CreateSpan:      retry[[2]string{"default", "idempotent"}],
+	}
+}
+
+// Client is a client for interacting with Stackdriver Trace API.
+type Client struct {
+	// The connection to the service.
+	conn *grpc.ClientConn
+
+	// The gRPC API client.
+	client cloudtracepb.TraceServiceClient
+
+	// The call options for this service.
+	CallOptions *CallOptions
+
+	// The x-goog-* metadata to be sent with each request.
+	xGoogMetadata metadata.MD
+}
+
+// NewClient creates a new trace service client.
+//
+// This file describes an API for collecting and viewing traces and spans
+// within a trace.  A Trace is a collection of spans corresponding to a single
+// operation or set of operations for an application. A span is an individual
+// timed event which forms a node of the trace tree. A single trace may
+// contain span(s) from multiple services.
+func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
+	conn, err := transport.DialGRPC(ctx, append(defaultClientOptions(), opts...)...)
+	if err != nil {
+		return nil, err
+	}
+	c := &Client{
+		conn:        conn,
+		CallOptions: defaultCallOptions(),
+
+		client: cloudtracepb.NewTraceServiceClient(conn),
+	}
+	c.setGoogleClientInfo()
+	return c, nil
+}
+
+// Connection returns the client's connection to the API service.
+func (c *Client) 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 *Client) 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 *Client) setGoogleClientInfo(keyval ...string) {
+	kv := append([]string{"gl-go", version.Go()}, keyval...)
+	kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
+	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
+}
+
+// BatchWriteSpans sends new spans to new or existing traces. You cannot update
+// existing spans.
+func (c *Client) BatchWriteSpans(ctx context.Context, req *cloudtracepb.BatchWriteSpansRequest, opts ...gax.CallOption) error {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append(c.CallOptions.BatchWriteSpans[0:len(c.CallOptions.BatchWriteSpans):len(c.CallOptions.BatchWriteSpans)], opts...)
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		_, err = c.client.BatchWriteSpans(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	return err
+}
+
+// CreateSpan creates a new span.
+func (c *Client) CreateSpan(ctx context.Context, req *cloudtracepb.Span, opts ...gax.CallOption) (*cloudtracepb.Span, error) {
+	ctx = insertMetadata(ctx, c.xGoogMetadata)
+	opts = append(c.CallOptions.CreateSpan[0:len(c.CallOptions.CreateSpan):len(c.CallOptions.CreateSpan)], opts...)
+	var resp *cloudtracepb.Span
+	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
+		var err error
+		resp, err = c.client.CreateSpan(ctx, req, settings.GRPC...)
+		return err
+	}, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}