Update vendoring via vndr

gateway/vendor/github.com/prometheus/client_golang/api/client.go

@@ -1,131 +0,0 @@
-// Copyright 2015 The Prometheus Authors
-// 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.
-
-// +build go1.7
-
-// Package api provides clients for the HTTP APIs.
-package api
-
-import (
-	"context"
-	"io/ioutil"
-	"net"
-	"net/http"
-	"net/url"
-	"path"
-	"strings"
-	"time"
-)
-
-// DefaultRoundTripper is used if no RoundTripper is set in Config.
-var DefaultRoundTripper http.RoundTripper = &http.Transport{
-	Proxy: http.ProxyFromEnvironment,
-	Dial: (&net.Dialer{
-		Timeout:   30 * time.Second,
-		KeepAlive: 30 * time.Second,
-	}).Dial,
-	TLSHandshakeTimeout: 10 * time.Second,
-}
-
-// Config defines configuration parameters for a new client.
-type Config struct {
-	// The address of the Prometheus to connect to.
-	Address string
-
-	// RoundTripper is used by the Client to drive HTTP requests. If not
-	// provided, DefaultRoundTripper will be used.
-	RoundTripper http.RoundTripper
-}
-
-func (cfg *Config) roundTripper() http.RoundTripper {
-	if cfg.RoundTripper == nil {
-		return DefaultRoundTripper
-	}
-	return cfg.RoundTripper
-}
-
-// Client is the interface for an API client.
-type Client interface {
-	URL(ep string, args map[string]string) *url.URL
-	Do(context.Context, *http.Request) (*http.Response, []byte, error)
-}
-
-// NewClient returns a new Client.
-//
-// It is safe to use the returned Client from multiple goroutines.
-func NewClient(cfg Config) (Client, error) {
-	u, err := url.Parse(cfg.Address)
-	if err != nil {
-		return nil, err
-	}
-	u.Path = strings.TrimRight(u.Path, "/")
-
-	return &httpClient{
-		endpoint: u,
-		client:   http.Client{Transport: cfg.roundTripper()},
-	}, nil
-}
-
-type httpClient struct {
-	endpoint *url.URL
-	client   http.Client
-}
-
-func (c *httpClient) URL(ep string, args map[string]string) *url.URL {
-	p := path.Join(c.endpoint.Path, ep)
-
-	for arg, val := range args {
-		arg = ":" + arg
-		p = strings.Replace(p, arg, val, -1)
-	}
-
-	u := *c.endpoint
-	u.Path = p
-
-	return &u
-}
-
-func (c *httpClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
-	if ctx != nil {
-		req = req.WithContext(ctx)
-	}
-	resp, err := c.client.Do(req)
-	defer func() {
-		if resp != nil {
-			resp.Body.Close()
-		}
-	}()
-
-	if err != nil {
-		return nil, nil, err
-	}
-
-	var body []byte
-	done := make(chan struct{})
-	go func() {
-		body, err = ioutil.ReadAll(resp.Body)
-		close(done)
-	}()
-
-	select {
-	case <-ctx.Done():
-		err = resp.Body.Close()
-		<-done
-		if err == nil {
-			err = ctx.Err()
-		}
-	case <-done:
-	}
-
-	return resp, body, err
-}