update dependencies

Signed-off-by: huanggze <loganhuang@yunify.com>

vendor/github.com/elastic/go-elasticsearch/v5/elasticsearch.go

@@ -0,0 +1,129 @@
+package elasticsearch
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"os"
+	"strings"
+
+	"github.com/elastic/go-elasticsearch/v5/esapi"
+	"github.com/elastic/go-elasticsearch/v5/estransport"
+	"github.com/elastic/go-elasticsearch/v5/internal/version"
+)
+
+const (
+	defaultURL = "http://localhost:9200"
+)
+
+// Version returns the package version as a string.
+//
+const Version = version.Client
+
+// Config represents the client configuration.
+//
+type Config struct {
+	Addresses []string // A list of Elasticsearch nodes to use.
+	Username  string   // Username for HTTP Basic Authentication.
+	Password  string   // Password for HTTP Basic Authentication.
+
+	Transport http.RoundTripper  // The HTTP transport object.
+	Logger    estransport.Logger // The logger object.
+}
+
+// Client represents the Elasticsearch client.
+//
+type Client struct {
+	*esapi.API // Embeds the API methods
+	Transport  estransport.Interface
+}
+
+// NewDefaultClient creates a new client with default options.
+//
+// It will use http://localhost:9200 as the default address.
+//
+// It will use the ELASTICSEARCH_URL environment variable, if set,
+// to configure the addresses; use a comma to separate multiple URLs.
+//
+func NewDefaultClient() (*Client, error) {
+	return NewClient(Config{})
+}
+
+// NewClient creates a new client with configuration from cfg.
+//
+// It will use http://localhost:9200 as the default address.
+//
+// It will use the ELASTICSEARCH_URL environment variable, if set,
+// to configure the addresses; use a comma to separate multiple URLs.
+//
+// It's an error to set both cfg.Addresses and the ELASTICSEARCH_URL
+// environment variable.
+//
+func NewClient(cfg Config) (*Client, error) {
+	envAddrs := addrsFromEnvironment()
+
+	if len(envAddrs) > 0 && len(cfg.Addresses) > 0 {
+		return nil, errors.New("cannot create client: both ELASTICSEARCH_URL and Addresses are set")
+	}
+
+	addrs := append(envAddrs, cfg.Addresses...)
+
+	urls, err := addrsToURLs(addrs)
+	if err != nil {
+		return nil, fmt.Errorf("cannot create client: %s", err)
+	}
+
+	if len(urls) == 0 {
+		u, _ := url.Parse(defaultURL) // errcheck exclude
+		urls = append(urls, u)
+	}
+
+	tp := estransport.New(estransport.Config{
+		URLs:     urls,
+		Username: cfg.Username,
+		Password: cfg.Password,
+
+		Transport: cfg.Transport,
+		Logger:    cfg.Logger,
+	})
+
+	return &Client{Transport: tp, API: esapi.New(tp)}, nil
+}
+
+// Perform delegates to Transport to execute a request and return a response.
+//
+func (c *Client) Perform(req *http.Request) (*http.Response, error) {
+	return c.Transport.Perform(req)
+}
+
+// addrsFromEnvironment returns a list of addresses by splitting
+// the ELASTICSEARCH_URL environment variable with comma, or an empty list.
+//
+func addrsFromEnvironment() []string {
+	var addrs []string
+
+	if envURLs, ok := os.LookupEnv("ELASTICSEARCH_URL"); ok && envURLs != "" {
+		list := strings.Split(envURLs, ",")
+		for _, u := range list {
+			addrs = append(addrs, strings.TrimSpace(u))
+		}
+	}
+
+	return addrs
+}
+
+// addrsToURLs creates a list of url.URL structures from url list.
+//
+func addrsToURLs(addrs []string) ([]*url.URL, error) {
+	var urls []*url.URL
+	for _, addr := range addrs {
+		u, err := url.Parse(strings.TrimRight(addr, "/"))
+		if err != nil {
+			return nil, fmt.Errorf("cannot parse url: %v", err)
+		}
+
+		urls = append(urls, u)
+	}
+	return urls, nil
+}