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// Use of Context
23//
24// The ctx passed to NewClient is used for authentication requests and
25// for creating the underlying connection, but is not used for subsequent calls.
26// Individual methods on the client use the ctx given to them.
27//
28// To close the open connection, use the Close() method.
29//
30// For information about setting deadlines, reusing contexts, and more
31// please visit godoc.org/cloud.google.com/go.
32package cloudtasks // import "cloud.google.com/go/cloudtasks/apiv2"
33
34import (
35	"context"
36	"runtime"
37	"strings"
38	"unicode"
39
40	"google.golang.org/api/option"
41	"google.golang.org/grpc/metadata"
42)
43
44// For more information on implementing a client constructor hook, see
45// https://github.com/googleapis/google-cloud-go/wiki/Customizing-constructors.
46type clientHookParams struct{}
47type clientHook func(context.Context, clientHookParams) ([]option.ClientOption, error)
48
49const versionClient = "20200618"
50
51func insertMetadata(ctx context.Context, mds ...metadata.MD) context.Context {
52	out, _ := metadata.FromOutgoingContext(ctx)
53	out = out.Copy()
54	for _, md := range mds {
55		for k, v := range md {
56			out[k] = append(out[k], v...)
57		}
58	}
59	return metadata.NewOutgoingContext(ctx, out)
60}
61
62// DefaultAuthScopes reports the default set of authentication scopes to use with this package.
63func DefaultAuthScopes() []string {
64	return []string{
65		"https://www.googleapis.com/auth/cloud-platform",
66	}
67}
68
69// versionGo returns the Go runtime version. The returned string
70// has no whitespace, suitable for reporting in header.
71func versionGo() string {
72	const develPrefix = "devel +"
73
74	s := runtime.Version()
75	if strings.HasPrefix(s, develPrefix) {
76		s = s[len(develPrefix):]
77		if p := strings.IndexFunc(s, unicode.IsSpace); p >= 0 {
78			s = s[:p]
79		}
80		return s
81	}
82
83	notSemverRune := func(r rune) bool {
84		return !strings.ContainsRune("0123456789.", r)
85	}
86
87	if strings.HasPrefix(s, "go1") {
88		s = s[2:]
89		var prerelease string
90		if p := strings.IndexFunc(s, notSemverRune); p >= 0 {
91			s, prerelease = s[:p], s[p:]
92		}
93		if strings.HasSuffix(s, ".") {
94			s += "0"
95		} else if strings.Count(s, ".") < 2 {
96			s += ".0"
97		}
98		if prerelease != "" {
99			s += "-" + prerelease
100		}
101		return s
102	}
103	return "UNKNOWN"
104}
105