repos: remove unread fields from graphql query (#1288)

We didn't actually read the majority of fields on the graphql query for
repositories. So we remove all unread fields. In particular this removes
the field "Language" which is expensive to compute if not cached.

In practice I suspect this will dramatically improve the performance of
"src repos list" command.

Author: keegancsmith

cmd/src/repos.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"time"
 
 	"github.com/sourcegraph/sourcegraph/lib/errors"
 
@@ -51,53 +50,17 @@ Use "src repos [command] -h" for more information about a command.
 
 const repositoryFragment = `
 fragment RepositoryFields on Repository {
-	id
 	name
-	url
-	description
-	language
-	createdAt
-	updatedAt
-	externalRepository {
-		id
-		serviceType
-		serviceID
-	}
 	defaultBranch {
 		name
 		displayName
 	}
-	viewerCanAdminister
-	keyValuePairs {
-		key
-		value
-	}
 }
 `
 
 type Repository struct {
-	ID                  string             `json:"id"`
-	Name                string             `json:"name"`
-	URL                 string             `json:"url"`
-	Description         string             `json:"description"`
-	Language            string             `json:"language"`
-	CreatedAt           time.Time          `json:"createdAt"`
-	UpdatedAt           *time.Time         `json:"updatedAt"`
-	ExternalRepository  ExternalRepository `json:"externalRepository"`
-	DefaultBranch       GitRef             `json:"defaultBranch"`
-	ViewerCanAdminister bool               `json:"viewerCanAdminister"`
-	KeyValuePairs       []KeyValuePair     `json:"keyValuePairs"`
-}
-
-type KeyValuePair struct {
-	Key   string  `json:"key"`
-	Value *string `json:"value"`
-}
-
-type ExternalRepository struct {
-	ID          string `json:"id"`
-	ServiceType string `json:"serviceType"`
-	ServiceID   string `json:"serviceID"`
+	Name          string `json:"name"`
+	DefaultBranch GitRef `json:"defaultBranch"`
 }
 
 type GitRef struct {