fix: update lego.

vendor/google.golang.org/api/gensupport/backoff.go

@@ -9,6 +9,8 @@ import (
 	"time"
 )
 
+// BackoffStrategy defines the set of functions that a backoff-er must
+// implement.
 type BackoffStrategy interface {
 	// Pause returns the duration of the next pause and true if the operation should be
 	// retried, or false if no further retries should be attempted.
@@ -28,6 +30,7 @@ type ExponentialBackoff struct {
 	n     uint
 }
 
+// Pause returns the amount of time the caller should wait.
 func (eb *ExponentialBackoff) Pause() (time.Duration, bool) {
 	if eb.total > eb.Max {
 		return 0, false
@@ -40,6 +43,8 @@ func (eb *ExponentialBackoff) Pause() (time.Duration, bool) {
 	return d, true
 }
 
+// Reset resets the backoff strategy such that the next Pause call will begin
+// counting from the start. It is not safe to call concurrently with Pause.
 func (eb *ExponentialBackoff) Reset() {
 	eb.n = 0
 	eb.total = 0

vendor/google.golang.org/api/gensupport/buffer.go

@@ -11,7 +11,8 @@ import (
 	"google.golang.org/api/googleapi"
 )
 
-// MediaBuffer buffers data from an io.Reader to support uploading media in retryable chunks.
+// MediaBuffer buffers data from an io.Reader to support uploading media in
+// retryable chunks. It should be created with NewMediaBuffer.
 type MediaBuffer struct {
 	media io.Reader
 
@@ -22,6 +23,7 @@ type MediaBuffer struct {
 	off int64
 }
 
+// NewMediaBuffer initializes a MediaBuffer.
 func NewMediaBuffer(media io.Reader, chunkSize int) *MediaBuffer {
 	return &MediaBuffer{media: media, chunk: make([]byte, 0, chunkSize)}
 }

vendor/google.golang.org/api/gensupport/go18.go

@@ -1,17 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.8
-
-package gensupport
-
-import (
-	"io"
-	"net/http"
-)
-
-// SetGetBody sets the GetBody field of req to f.
-func SetGetBody(req *http.Request, f func() (io.ReadCloser, error)) {
-	req.GetBody = f
-}

vendor/google.golang.org/api/gensupport/jsonfloat.go

@@ -1,4 +1,4 @@
-// Copyright 2016 Google Inc. All Rights Reserved.
+// Copyright 2016 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.

vendor/google.golang.org/api/gensupport/media.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"mime"
 	"mime/multipart"
 	"net/http"
 	"net/textproto"
@@ -115,11 +116,15 @@ type multipartReader struct {
 	pipeOpen bool
 }
 
-func newMultipartReader(parts []typeReader) *multipartReader {
+// boundary optionally specifies the MIME boundary
+func newMultipartReader(parts []typeReader, boundary string) *multipartReader {
 	mp := &multipartReader{pipeOpen: true}
 	var pw *io.PipeWriter
 	mp.pr, pw = io.Pipe()
 	mpw := multipart.NewWriter(pw)
+	if boundary != "" {
+		mpw.SetBoundary(boundary)
+	}
 	mp.ctype = "multipart/related; boundary=" + mpw.Boundary()
 	go func() {
 		for _, part := range parts {
@@ -163,10 +168,15 @@ func (mp *multipartReader) Close() error {
 //
 // The caller must call Close on the returned ReadCloser if reads are abandoned before reaching EOF.
 func CombineBodyMedia(body io.Reader, bodyContentType string, media io.Reader, mediaContentType string) (io.ReadCloser, string) {
+	return combineBodyMedia(body, bodyContentType, media, mediaContentType, "")
+}
+
+// combineBodyMedia is CombineBodyMedia but with an optional mimeBoundary field.
+func combineBodyMedia(body io.Reader, bodyContentType string, media io.Reader, mediaContentType, mimeBoundary string) (io.ReadCloser, string) {
 	mp := newMultipartReader([]typeReader{
 		{body, bodyContentType},
 		{media, mediaContentType},
-	})
+	}, mimeBoundary)
 	return mp, mp.ctype
 }
 
@@ -242,6 +252,7 @@ func NewInfoFromResumableMedia(r io.ReaderAt, size int64, mediaType string) *Med
 	}
 }
 
+// SetProgressUpdater sets the progress updater for the media info.
 func (mi *MediaInfo) SetProgressUpdater(pu googleapi.ProgressUpdater) {
 	if mi != nil {
 		mi.progressUpdater = pu
@@ -283,7 +294,11 @@ func (mi *MediaInfo) UploadRequest(reqHeaders http.Header, body io.Reader) (newB
 			getBody = func() (io.ReadCloser, error) {
 				rb := ioutil.NopCloser(fb())
 				rm := ioutil.NopCloser(fm())
-				r, _ := CombineBodyMedia(rb, "application/json", rm, mi.mType)
+				var mimeBoundary string
+				if _, params, err := mime.ParseMediaType(ctype); err == nil {
+					mimeBoundary = params["boundary"]
+				}
+				r, _ := combineBodyMedia(rb, "application/json", rm, mi.mType, mimeBoundary)
 				return r, nil
 			}
 		}
@@ -334,3 +349,15 @@ func (mi *MediaInfo) ResumableUpload(locURI string) *ResumableUpload {
 		},
 	}
 }
+
+// SetGetBody sets the GetBody field of req to f. This was once needed
+// to gracefully support Go 1.7 and earlier which didn't have that
+// field.
+//
+// Deprecated: the code generator no longer uses this as of
+// 2019-02-19. Nothing else should be calling this anyway, but we
+// won't delete this immediately; it will be deleted in as early as 6
+// months.
+func SetGetBody(req *http.Request, f func() (io.ReadCloser, error)) {
+	req.GetBody = f
+}

vendor/google.golang.org/api/gensupport/not_go18.go

@@ -1,14 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.8
-
-package gensupport
-
-import (
-	"io"
-	"net/http"
-)
-
-func SetGetBody(req *http.Request, f func() (io.ReadCloser, error)) {}

vendor/google.golang.org/api/gensupport/params.go

@@ -43,6 +43,7 @@ func (u URLParams) Encode() string {
 	return url.Values(u).Encode()
 }
 
+// SetOptions sets the URL params and any additional call options.
 func SetOptions(u URLParams, opts ...googleapi.CallOption) {
 	for _, o := range opts {
 		u.Set(o.Get())

vendor/google.golang.org/api/gensupport/resumable.go

@@ -5,14 +5,13 @@
 package gensupport
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
 	"net/http"
 	"sync"
 	"time"
-
-	"golang.org/x/net/context"
 )
 
 const (

vendor/google.golang.org/api/gensupport/retry.go

@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc. All Rights Reserved.
+// Copyright 2017 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,12 +15,11 @@
 package gensupport
 
 import (
+	"context"
 	"io"
 	"net"
 	"net/http"
 	"time"
-
-	"golang.org/x/net/context"
 )
 
 // Retry invokes the given function, retrying it multiple times if the connection failed or

vendor/google.golang.org/api/gensupport/send.go

@@ -5,12 +5,10 @@
 package gensupport
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"net/http"
-
-	"golang.org/x/net/context"
-	"golang.org/x/net/context/ctxhttp"
 )
 
 // Hook is the type of a function that is called once before each HTTP request
@@ -32,7 +30,8 @@ func RegisterHook(h Hook) {
 
 // SendRequest sends a single HTTP request using the given client.
 // If ctx is non-nil, it calls all hooks, then sends the request with
-// ctxhttp.Do, then calls any functions returned by the hooks in reverse order.
+// req.WithContext, then calls any functions returned by the hooks in
+// reverse order.
 func SendRequest(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
 	// Disallow Accept-Encoding because it interferes with the automatic gzip handling
 	// done by the default http.Transport. See https://github.com/google/google-api-go-client/issues/219.
@@ -50,7 +49,7 @@ func SendRequest(ctx context.Context, client *http.Client, req *http.Request) (*
 	}
 
 	// Send request.
-	resp, err := ctxhttp.Do(ctx, client, req)
+	resp, err := send(ctx, client, req)
 
 	// Call returned funcs in reverse order.
 	for i := len(post) - 1; i >= 0; i-- {
@@ -61,6 +60,23 @@ func SendRequest(ctx context.Context, client *http.Client, req *http.Request) (*
 	return resp, err
 }
 
+func send(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
+	if client == nil {
+		client = http.DefaultClient
+	}
+	resp, err := client.Do(req.WithContext(ctx))
+	// If we got an error, and the context has been canceled,
+	// the context's error is probably more useful.
+	if err != nil {
+		select {
+		case <-ctx.Done():
+			err = ctx.Err()
+		default:
+		}
+	}
+	return resp, err
+}
+
 // DecodeResponse decodes the body of res into target. If there is no body,
 // target is unchanged.
 func DecodeResponse(target interface{}, res *http.Response) error {