1// Copyright 2020 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     https://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
16
17// Package cloudtasks is an auto-generated package for the
18// Cloud Tasks API.
19//
20// Manages the execution of large numbers of distributed requests.
21//
22//   NOTE: This package is in beta. It is not stable, and may be subject to changes.
23//
24// Use of Context
25//
26// The ctx passed to NewClient is used for authentication requests and
27// for creating the underlying connection, but is not used for subsequent calls.
28// Individual methods on the client use the ctx given to them.
29//
30// To close the open connection, use the Close() method.
31//
32// For information about setting deadlines, reusing contexts, and more
33// please visit godoc.org/cloud.google.com/go.
34package cloudtasks // import "cloud.google.com/go/cloudtasks/apiv2beta3"
35
36import (
37	"context"
38	"runtime"
39	"strings"
40	"unicode"
41
42	"google.golang.org/api/option"
43	"google.golang.org/grpc/metadata"
44)
45
46// For more information on implementing a client constructor hook, see
47// https://github.com/googleapis/google-cloud-go/wiki/Customizing-constructors.
48type clientHookParams struct{}
49type clientHook func(context.Context, clientHookParams) ([]option.ClientOption, error)
50
51const versionClient = "20200618"
52
53func insertMetadata(ctx context.Context, mds ...metadata.MD) context.Context {
54	out, _ := metadata.FromOutgoingContext(ctx)
55	out = out.Copy()
56	for _, md := range mds {
57		for k, v := range md {
58			out[k] = append(out[k], v...)
59		}
60	}
61	return metadata.NewOutgoingContext(ctx, out)
62}
63
64// DefaultAuthScopes reports the default set of authentication scopes to use with this package.
65func DefaultAuthScopes() []string {
66	return []string{
67		"https://www.googleapis.com/auth/cloud-platform",
68	}
69}
70
71// versionGo returns the Go runtime version. The returned string
72// has no whitespace, suitable for reporting in header.
73func versionGo() string {
74	const develPrefix = "devel +"
75
76	s := runtime.Version()
77	if strings.HasPrefix(s, develPrefix) {
78		s = s[len(develPrefix):]
79		if p := strings.IndexFunc(s, unicode.IsSpace); p >= 0 {
80			s = s[:p]
81		}
82		return s
83	}
84
85	notSemverRune := func(r rune) bool {
86		return !strings.ContainsRune("0123456789.", r)
87	}
88
89	if strings.HasPrefix(s, "go1") {
90		s = s[2:]
91		var prerelease string
92		if p := strings.IndexFunc(s, notSemverRune); p >= 0 {
93			s, prerelease = s[:p], s[p:]
94		}
95		if strings.HasSuffix(s, ".") {
96			s += "0"
97		} else if strings.Count(s, ".") < 2 {
98			s += ".0"
99		}
100		if prerelease != "" {
101			s += "-" + prerelease
102		}
103		return s
104	}
105	return "UNKNOWN"
106}
107