Add shards information to search response

Search results return information about the shards in `_shards`.
This is now part of the `SearchResult`.

Close #373

CONTRIBUTORS

@@ -41,6 +41,7 @@ John Goodall [@jgoodall](https://github.com/jgoodall)
 John Stanford [@jxstanford](https://github.com/jxstanford)
 Junpei Tsuji [@jun06t](https://github.com/jun06t)
 Kenta SUZUKI [@suzuken](https://github.com/suzuken)
+Kyle Brandt [@kylebrandt](https://github.com/kylebrandt)
 Maciej Lisiewski [@c2h5oh](https://github.com/c2h5oh)
 Mara Kim [@autochthe](https://github.com/autochthe)
 Marcy Buccellato [@marcybuccellato](https://github.com/marcybuccellato)

client.go

@@ -24,7 +24,7 @@ import (
 
 const (
 	// Version is the current version of Elastic.
-	Version = "3.0.55"
+	Version = "3.0.56"
 
 	// DefaultUrl is the default endpoint of Elasticsearch on the local machine.
 	// It is used e.g. when initializing a new Client without a specific URL.

search.go

@@ -386,7 +386,8 @@ type SearchResult struct {
 	TerminatedEarly bool          `json:"terminated_early"` // true if the operation has terminated before e.g. an expiration was reached
 	//Error        string        `json:"error,omitempty"` // used in MultiSearch only
 	// TODO double-check that MultiGet now returns details error information
-	Error *ErrorDetails `json:"error,omitempty"` // only used in MultiGet
+	Error  *ErrorDetails `json:"error,omitempty"`   // only used in MultiGet
+	Shards *shardsInfo   `json:"_shards,omitempty"` // shard information
 }
 
 // TotalHits is a convenience function to return the number of hits for

search_test.go

@@ -1020,3 +1020,25 @@ func TestSearchBuildURL(t *testing.T) {
 		}
 	}
 }
+
+func TestSearchResultHasShards(t *testing.T) {
+	//client := setupTestClientAndCreateIndexAndAddDocs(t, SetTraceLog(log.New(os.Stdout, "", log.LstdFlags)))
+	client := setupTestClientAndCreateIndexAndAddDocs(t)
+
+	// Match all should return all documents
+	searchResult, err := client.Search().
+		Index(testIndexName).
+		Query(NewMatchAllQuery()).
+		Size(100).
+		Pretty(true).
+		Do()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if searchResult.Shards == nil {
+		t.Errorf("expected SearchResult.Shards != nil; got nil")
+	}
+	if got, want := searchResult.Shards.Failed, 0; got != want {
+		t.Errorf("expected SearchResult.Shards.Failed = %d; got %d", want, got)
+	}
+}