Use graphql rather than rest API for Github team membership (#1786)

This change should provide better diffing for team membership for teams
with child teams. Currently, child team members are included in the parent
team's members list and so diffs are incorrect.

See [Issue 1193](#1193).

github/resource_github_team_members.go

@@ -4,9 +4,11 @@ import (
 	"context"
 	"log"
 	"reflect"
+	"strings"
 
 	"github.com/google/go-github/v53/github"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
+	"github.com/shurcooL/githubv4"
 )
 
 type MemberChange struct {
@@ -53,10 +55,6 @@ func resourceGithubTeamMembers() *schema.Resource {
 					},
 				},
 			},
-			"etag": {
-				Type:     schema.TypeString,
-				Computed: true,
-			},
 		},
 	}
 }
@@ -176,15 +174,15 @@ func resourceGithubTeamMembersUpdate(d *schema.ResourceData, meta interface{}) e
 }
 
 func resourceGithubTeamMembersRead(d *schema.ResourceData, meta interface{}) error {
-	client := meta.(*Owner).v3client
-	orgId := meta.(*Owner).id
+	client := meta.(*Owner).v4client
+	orgName := meta.(*Owner).name
 	teamIdString := d.Get("team_id").(string)
 	if teamIdString == "" && !d.IsNewResource() {
 		log.Printf("[DEBUG] Importing team with id %q", d.Id())
 		teamIdString = d.Id()
 	}
 
-	teamId, err := getTeamID(teamIdString, meta)
+	teamSlug, err := getTeamSlug(teamIdString, meta)
 	if err != nil {
 		return err
 	}
@@ -195,81 +193,45 @@ func resourceGithubTeamMembersRead(d *schema.ResourceData, meta interface{}) err
 	d.Set("team_id", teamIdString)
 
 	ctx := context.WithValue(context.Background(), ctxId, d.Id())
-	if !d.IsNewResource() {
-		ctx = context.WithValue(ctx, ctxEtag, d.Get("etag").(string))
-	}
 
-	etags := make([]string, 0)
-	// List members & maintainers as list 'all' drops role information
 	log.Printf("[DEBUG] Reading team members: %s", teamIdString)
-	memberOptions := github.TeamListTeamMembersOptions{
-		ListOptions: github.ListOptions{
-			PerPage: maxPerPage,
-		},
-		Role: "member",
+	var q struct {
+		Organization struct {
+			Team struct {
+				Members struct {
+					Edges []struct {
+						Node struct {
+							Login string
+						}
+						Role string
+					}
+				} `graphql:"members(membership:IMMEDIATE)"`
+			} `graphql:"team(slug:$teamSlug)"`
+		} `graphql:"organization(login:$orgName)"`
 	}
 
-	var members []*github.User
-	for {
-		member, resp, err := client.Teams.ListTeamMembersByID(ctx, orgId, teamId, &memberOptions)
-		if err != nil {
-			return err
-		}
-
-		etags = append(etags, resp.Header.Get("ETag"))
-		members = append(members, member...)
-		if resp.NextPage == 0 {
-			break
-		}
-		memberOptions.Page = resp.NextPage
+	variables := map[string]interface{}{
+		"teamSlug": githubv4.String(teamSlug),
+		"orgName":  githubv4.String(orgName),
 	}
 
-	log.Printf("[DEBUG] Reading team maintainers: %s", teamIdString)
-	maintainerOptions := github.TeamListTeamMembersOptions{
-		ListOptions: github.ListOptions{
-			PerPage: maxPerPage,
-		},
-		Role: "maintainer",
-	}
-	var maintainers []*github.User
-	for {
-		maintaner, resp, err := client.Teams.ListTeamMembersByID(ctx, orgId, teamId, &maintainerOptions)
-		if err != nil {
-			return err
-		}
-
-		etags = append(etags, resp.Header.Get("ETag"))
-		maintainers = append(maintainers, maintaner...)
-
-		if resp.NextPage == 0 {
-			break
-		}
-		maintainerOptions.Page = resp.NextPage
+	if err := client.Query(ctx, &q, variables); err != nil {
+		return err
 	}
 
-	teamMembersAndMaintainers := make([]interface{}, len(members)+len(maintainers))
+	teamMembersAndMaintainers := make([]interface{}, len(q.Organization.Team.Members.Edges))
 	// Add all members to the list
-	for i, member := range members {
+	for i, member := range q.Organization.Team.Members.Edges {
 		teamMembersAndMaintainers[i] = map[string]interface{}{
-			"username": member.Login,
-			"role":     "member",
-		}
-	}
-	// Add all maintainers to the list
-	for i, member := range maintainers {
-		teamMembersAndMaintainers[i+len(members)] = map[string]interface{}{
-			"username": member.Login,
-			"role":     "maintainer",
+			"username": member.Node.Login,
+			"role":     strings.ToLower(member.Role),
 		}
 	}
 
 	if err := d.Set("members", teamMembersAndMaintainers); err != nil {
 		return err
 	}
 
-	// Combine etag of all requests
-	d.Set("etag", buildChecksumID(etags))
-
 	return nil
 }
 

github/resource_github_team_members_test.go

@@ -32,7 +32,6 @@ func TestAccGithubTeamMembers(t *testing.T) {
 					{
 						Config: testAccGithubTeamMembersConfig(randomID, testCollaborator, "member"),
 						Check: resource.ComposeTestCheckFunc(
-							resource.TestCheckResourceAttrSet(resourceName, "etag"),
 							testAccCheckGithubTeamMembersExists(resourceName, &membership),
 							testAccCheckGithubTeamMembersRoleState(resourceName, "member", &membership),
 						),