Issue search support elasticsearch (#9428)

* Issue search support elasticsearch

* Fix lint

* Add indexer name on app.ini

* add a warnning on SearchIssuesByKeyword

* improve code

vendor/github.com/olivere/elastic/v7/indices_create.go

@@ -0,0 +1,189 @@
+// Copyright 2012-present Oliver Eilhard. All rights reserved.
+// Use of this source code is governed by a MIT-license.
+// See http://olivere.mit-license.org/license.txt for details.
+
+package elastic
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/olivere/elastic/v7/uritemplates"
+)
+
+// IndicesCreateService creates a new index.
+//
+// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/indices-create-index.html
+// for details.
+type IndicesCreateService struct {
+	client *Client
+
+	pretty     *bool       // pretty format the returned JSON response
+	human      *bool       // return human readable values for statistics
+	errorTrace *bool       // include the stack trace of returned errors
+	filterPath []string    // list of filters used to reduce the response
+	headers    http.Header // custom request-level HTTP headers
+
+	index         string
+	timeout       string
+	masterTimeout string
+	bodyJson      interface{}
+	bodyString    string
+}
+
+// NewIndicesCreateService returns a new IndicesCreateService.
+func NewIndicesCreateService(client *Client) *IndicesCreateService {
+	return &IndicesCreateService{client: client}
+}
+
+// Pretty tells Elasticsearch whether to return a formatted JSON response.
+func (s *IndicesCreateService) Pretty(pretty bool) *IndicesCreateService {
+	s.pretty = &pretty
+	return s
+}
+
+// Human specifies whether human readable values should be returned in
+// the JSON response, e.g. "7.5mb".
+func (s *IndicesCreateService) Human(human bool) *IndicesCreateService {
+	s.human = &human
+	return s
+}
+
+// ErrorTrace specifies whether to include the stack trace of returned errors.
+func (s *IndicesCreateService) ErrorTrace(errorTrace bool) *IndicesCreateService {
+	s.errorTrace = &errorTrace
+	return s
+}
+
+// FilterPath specifies a list of filters used to reduce the response.
+func (s *IndicesCreateService) FilterPath(filterPath ...string) *IndicesCreateService {
+	s.filterPath = filterPath
+	return s
+}
+
+// Header adds a header to the request.
+func (s *IndicesCreateService) Header(name string, value string) *IndicesCreateService {
+	if s.headers == nil {
+		s.headers = http.Header{}
+	}
+	s.headers.Add(name, value)
+	return s
+}
+
+// Headers specifies the headers of the request.
+func (s *IndicesCreateService) Headers(headers http.Header) *IndicesCreateService {
+	s.headers = headers
+	return s
+}
+
+// Index is the name of the index to create.
+func (s *IndicesCreateService) Index(index string) *IndicesCreateService {
+	s.index = index
+	return s
+}
+
+// Timeout the explicit operation timeout, e.g. "5s".
+func (s *IndicesCreateService) Timeout(timeout string) *IndicesCreateService {
+	s.timeout = timeout
+	return s
+}
+
+// MasterTimeout specifies the timeout for connection to master.
+func (s *IndicesCreateService) MasterTimeout(masterTimeout string) *IndicesCreateService {
+	s.masterTimeout = masterTimeout
+	return s
+}
+
+// Body specifies the configuration of the index as a string.
+// It is an alias for BodyString.
+func (s *IndicesCreateService) Body(body string) *IndicesCreateService {
+	s.bodyString = body
+	return s
+}
+
+// BodyString specifies the configuration of the index as a string.
+func (s *IndicesCreateService) BodyString(body string) *IndicesCreateService {
+	s.bodyString = body
+	return s
+}
+
+// BodyJson specifies the configuration of the index. The interface{} will
+// be serializes as a JSON document, so use a map[string]interface{}.
+func (s *IndicesCreateService) BodyJson(body interface{}) *IndicesCreateService {
+	s.bodyJson = body
+	return s
+}
+
+// Do executes the operation.
+func (s *IndicesCreateService) Do(ctx context.Context) (*IndicesCreateResult, error) {
+	if s.index == "" {
+		return nil, errors.New("missing index name")
+	}
+
+	// Build url
+	path, err := uritemplates.Expand("/{index}", map[string]string{
+		"index": s.index,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	params := url.Values{}
+	if v := s.pretty; v != nil {
+		params.Set("pretty", fmt.Sprint(*v))
+	}
+	if v := s.human; v != nil {
+		params.Set("human", fmt.Sprint(*v))
+	}
+	if v := s.errorTrace; v != nil {
+		params.Set("error_trace", fmt.Sprint(*v))
+	}
+	if len(s.filterPath) > 0 {
+		params.Set("filter_path", strings.Join(s.filterPath, ","))
+	}
+	if s.masterTimeout != "" {
+		params.Set("master_timeout", s.masterTimeout)
+	}
+	if s.timeout != "" {
+		params.Set("timeout", s.timeout)
+	}
+
+	// Setup HTTP request body
+	var body interface{}
+	if s.bodyJson != nil {
+		body = s.bodyJson
+	} else {
+		body = s.bodyString
+	}
+
+	// Get response
+	res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
+		Method:  "PUT",
+		Path:    path,
+		Params:  params,
+		Body:    body,
+		Headers: s.headers,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	ret := new(IndicesCreateResult)
+	if err := s.client.decoder.Decode(res.Body, ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+}
+
+// -- Result of a create index request.
+
+// IndicesCreateResult is the outcome of creating a new index.
+type IndicesCreateResult struct {
+	Acknowledged       bool   `json:"acknowledged"`
+	ShardsAcknowledged bool   `json:"shards_acknowledged"`
+	Index              string `json:"index,omitempty"`
+}