add megacheck as makefile target (#9288)

Fix code issues in channel_test.go

Fix Channel Test Issues detected by Megacheck

Fix API Emoji Test Issues detected by Megacheck

Fixed API Issues Reported by Megacheck

Fixed App issues reported by megacheck

Remaining fixes

removed test added by mistake from old HEAD

gofmt

Store Fixes

simplified returns

Fix test for multi member channel delete

revert to delete unused function

Makefile

@@ -275,6 +275,14 @@ gofmt: ## Runs gofmt against all packages.
 	done
 	@echo "gofmt success"; \
 
+megacheck: ## Run megacheck on codebasis
+	go get honnef.co/go/tools/cmd/megacheck
+	$(GOPATH)/bin/megacheck $(TE_PACKAGES)
+
+ifeq ($(BUILD_ENTERPRISE_READY),true)
+	$(GOPATH)/bin/megacheck $(EE_PACKAGES) || exit 1
+endif
+
 store-mocks: ## Creates mock files.
 	go get -u github.com/vektra/mockery/...
 	$(GOPATH)/bin/mockery -dir store -all -output store/storetest/mocks -note 'Regenerate this file using `make store-mocks`.'

api4/channel_test.go

@@ -150,8 +150,8 @@ func TestUpdateChannel(t *testing.T) {
 	channel := &model.Channel{DisplayName: "Test API Name", Name: GenerateTestChannelName(), Type: model.CHANNEL_OPEN, TeamId: team.Id}
 	private := &model.Channel{DisplayName: "Test API Name", Name: GenerateTestChannelName(), Type: model.CHANNEL_PRIVATE, TeamId: team.Id}
 
-	channel, resp := Client.CreateChannel(channel)
+	channel, _ = Client.CreateChannel(channel)
-	private, resp = Client.CreateChannel(private)
+	private, _ = Client.CreateChannel(private)
 
 	//Update a open channel
 	channel.DisplayName = "My new display name"
@@ -434,7 +434,7 @@ func TestCreateGroupChannel(t *testing.T) {
 		t.Fatal("should be equal")
 	}
 
-	rgc, resp = Client.CreateGroupChannel([]string{user2.Id})
+	_, resp = Client.CreateGroupChannel([]string{user2.Id})
 	CheckBadRequestStatus(t, resp)
 
 	user4 := th.CreateUser()
@@ -541,12 +541,12 @@ func TestGetDeletedChannelsForTeam(t *testing.T) {
 	Client := th.Client
 	team := th.BasicTeam
 
-	channels, resp := Client.GetDeletedChannelsForTeam(team.Id, 0, 100, "")
+	_, resp := Client.GetDeletedChannelsForTeam(team.Id, 0, 100, "")
 	CheckForbiddenStatus(t, resp)
 
 	th.LoginTeamAdmin()
 
-	channels, resp = Client.GetDeletedChannelsForTeam(team.Id, 0, 100, "")
+	channels, resp := Client.GetDeletedChannelsForTeam(team.Id, 0, 100, "")
 	CheckNoError(t, resp)
 	numInitialChannelsForTeam := len(channels)
 
@@ -860,6 +860,7 @@ func TestDeleteChannel(t *testing.T) {
 
 	// successful delete of channel with multiple members
 	publicChannel3 := th.CreatePublicChannel()
+	th.App.AddUserToChannel(user, publicChannel3)
 	th.App.AddUserToChannel(user2, publicChannel3)
 	_, resp = Client.DeleteChannel(publicChannel3.Id)
 	CheckNoError(t, resp)
@@ -901,7 +902,7 @@ func TestDeleteChannel(t *testing.T) {
 	publicChannel5 := th.CreatePublicChannel()
 	Client.Logout()
 
-	Client.Login(user2.Id, user2.Password)
+	Client.Login(user.Id, user.Password)
 	_, resp = Client.DeleteChannel(publicChannel5.Id)
 	CheckUnauthorizedStatus(t, resp)
 
@@ -927,16 +928,14 @@ func TestDeleteChannel(t *testing.T) {
 	th.AddPermissionToRole(model.PERMISSION_DELETE_PRIVATE_CHANNEL.Id, model.TEAM_USER_ROLE_ID)
 
 	Client = th.Client
-	team = th.BasicTeam
 	user = th.BasicUser
-	user2 = th.BasicUser2
 
 	// channels created by SystemAdmin
 	publicChannel6 := th.CreateChannelWithClient(th.SystemAdminClient, model.CHANNEL_OPEN)
 	privateChannel7 := th.CreateChannelWithClient(th.SystemAdminClient, model.CHANNEL_PRIVATE)
 	th.App.AddUserToChannel(user, publicChannel6)
 	th.App.AddUserToChannel(user, privateChannel7)
-	th.App.AddUserToChannel(user2, privateChannel7)
+	th.App.AddUserToChannel(user, privateChannel7)
 
 	// successful delete by user
 	_, resp = Client.DeleteChannel(publicChannel6.Id)
@@ -956,7 +955,7 @@ func TestDeleteChannel(t *testing.T) {
 	privateChannel7 = th.CreateChannelWithClient(th.SystemAdminClient, model.CHANNEL_PRIVATE)
 	th.App.AddUserToChannel(user, publicChannel6)
 	th.App.AddUserToChannel(user, privateChannel7)
-	th.App.AddUserToChannel(user2, privateChannel7)
+	th.App.AddUserToChannel(user, privateChannel7)
 
 	// cannot delete by user
 	_, resp = Client.DeleteChannel(publicChannel6.Id)
@@ -1629,7 +1628,7 @@ func TestUpdateChannelRoles(t *testing.T) {
 	CheckNoError(t, resp)
 
 	// System Admin promotes User 1
-	pass, resp = th.SystemAdminClient.UpdateChannelRoles(channel.Id, th.BasicUser.Id, CHANNEL_ADMIN)
+	_, resp = th.SystemAdminClient.UpdateChannelRoles(channel.Id, th.BasicUser.Id, CHANNEL_ADMIN)
 	CheckNoError(t, resp)
 
 	th.LoginBasic()

api4/emoji_test.go

@@ -329,12 +329,16 @@ func TestDeleteEmoji(t *testing.T) {
 
 	th.RemovePermissionFromRole(model.PERMISSION_MANAGE_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
 	th.AddPermissionToRole(model.PERMISSION_MANAGE_OTHERS_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
+
 	Client.Logout()
 	th.LoginBasic2()
-	ok, resp = Client.DeleteEmoji(newEmoji.Id)
+
+	_, resp = Client.DeleteEmoji(newEmoji.Id)
 	CheckForbiddenStatus(t, resp)
+
 	th.RemovePermissionFromRole(model.PERMISSION_MANAGE_OTHERS_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
 	th.AddPermissionToRole(model.PERMISSION_MANAGE_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
+
 	Client.Logout()
 	th.LoginBasic()
 
@@ -349,8 +353,10 @@ func TestDeleteEmoji(t *testing.T) {
 
 	Client.Logout()
 	th.LoginBasic2()
-	ok, resp = Client.DeleteEmoji(newEmoji.Id)
+
+	_, resp = Client.DeleteEmoji(newEmoji.Id)
 	CheckForbiddenStatus(t, resp)
+
 	Client.Logout()
 	th.LoginBasic()
 
@@ -365,9 +371,11 @@ func TestDeleteEmoji(t *testing.T) {
 
 	th.AddPermissionToRole(model.PERMISSION_MANAGE_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
 	th.AddPermissionToRole(model.PERMISSION_MANAGE_OTHERS_EMOJIS.Id, model.SYSTEM_USER_ROLE_ID)
+
 	Client.Logout()
 	th.LoginBasic2()
-	ok, resp = Client.DeleteEmoji(newEmoji.Id)
+
+	_, resp = Client.DeleteEmoji(newEmoji.Id)
 	CheckNoError(t, resp)
 
 	Client.Logout()
@@ -401,7 +409,8 @@ func TestDeleteEmoji(t *testing.T) {
 
 	Client.Logout()
 	th.LoginBasic2()
-	ok, resp = Client.DeleteEmoji(newEmoji.Id)
+
+	_, resp = Client.DeleteEmoji(newEmoji.Id)
 	CheckNoError(t, resp)
 }
 

api4/file_test.go

@@ -446,7 +446,7 @@ func TestGetFileLink(t *testing.T) {
 		fileId = fileResp.FileInfos[0].Id
 	}
 
-	link, resp := Client.GetFileLink(fileId)
+	_, resp := Client.GetFileLink(fileId)
 	CheckBadRequestStatus(t, resp)
 
 	// Hacky way to assign file to a post (usually would be done by CreatePost call)
@@ -460,8 +460,9 @@ func TestGetFileLink(t *testing.T) {
 	time.Sleep(2 * time.Second)
 
 	th.App.UpdateConfig(func(cfg *model.Config) { cfg.FileSettings.EnablePublicLink = true })
-	link, resp = Client.GetFileLink(fileId)
+	link, resp := Client.GetFileLink(fileId)
 	CheckNoError(t, resp)
+
 	if link == "" {
 		t.Fatal("should've received public link")
 	}

api4/post_test.go

@@ -65,7 +65,7 @@ func TestCreatePost(t *testing.T) {
 	CheckBadRequestStatus(t, resp)
 
 	post2 := &model.Post{ChannelId: th.BasicChannel2.Id, Message: "zz" + model.NewId() + "a", CreateAt: 123}
-	rpost2, resp := Client.CreatePost(post2)
+	rpost2, _ := Client.CreatePost(post2)
 
 	if rpost2.CreateAt == post2.CreateAt {
 		t.Fatal("create at should not match")
@@ -154,7 +154,7 @@ func TestCreatePostEphemeral(t *testing.T) {
 	CheckUnauthorizedStatus(t, resp)
 
 	Client = th.Client
-	rpost, resp = Client.CreatePostEphemeral(ephemeralPost)
+	_, resp = Client.CreatePostEphemeral(ephemeralPost)
 	CheckForbiddenStatus(t, resp)
 }
 
@@ -1023,22 +1023,22 @@ func TestGetFlaggedPostsForUser(t *testing.T) {
 
 	Client.Logout()
 
-	rpl, resp = Client.GetFlaggedPostsForUserInChannel(user.Id, channel1.Id, 0, 10)
+	_, resp = Client.GetFlaggedPostsForUserInChannel(user.Id, channel1.Id, 0, 10)
 	CheckUnauthorizedStatus(t, resp)
 
-	rpl, resp = Client.GetFlaggedPostsForUserInTeam(user.Id, team1.Id, 0, 10)
+	_, resp = Client.GetFlaggedPostsForUserInTeam(user.Id, team1.Id, 0, 10)
 	CheckUnauthorizedStatus(t, resp)
 
-	rpl, resp = Client.GetFlaggedPostsForUser(user.Id, 0, 10)
+	_, resp = Client.GetFlaggedPostsForUser(user.Id, 0, 10)
 	CheckUnauthorizedStatus(t, resp)
 
-	rpl, resp = th.SystemAdminClient.GetFlaggedPostsForUserInChannel(user.Id, channel1.Id, 0, 10)
+	_, resp = th.SystemAdminClient.GetFlaggedPostsForUserInChannel(user.Id, channel1.Id, 0, 10)
 	CheckNoError(t, resp)
 
-	rpl, resp = th.SystemAdminClient.GetFlaggedPostsForUserInTeam(user.Id, team1.Id, 0, 10)
+	_, resp = th.SystemAdminClient.GetFlaggedPostsForUserInTeam(user.Id, team1.Id, 0, 10)
 	CheckNoError(t, resp)
 
-	rpl, resp = th.SystemAdminClient.GetFlaggedPostsForUser(user.Id, 0, 10)
+	_, resp = th.SystemAdminClient.GetFlaggedPostsForUser(user.Id, 0, 10)
 	CheckNoError(t, resp)
 }
 
@@ -1153,25 +1153,25 @@ func TestGetPost(t *testing.T) {
 	Client.RemoveUserFromChannel(th.BasicChannel.Id, th.BasicUser.Id)
 
 	// Channel is public, should be able to read post
-	post, resp = Client.GetPost(th.BasicPost.Id, "")
+	_, resp = Client.GetPost(th.BasicPost.Id, "")
 	CheckNoError(t, resp)
 
 	privatePost := th.CreatePostWithClient(Client, th.BasicPrivateChannel)
 
-	post, resp = Client.GetPost(privatePost.Id, "")
+	_, resp = Client.GetPost(privatePost.Id, "")
 	CheckNoError(t, resp)
 
 	Client.RemoveUserFromChannel(th.BasicPrivateChannel.Id, th.BasicUser.Id)
 
 	// Channel is private, should not be able to read post
-	post, resp = Client.GetPost(privatePost.Id, "")
+	_, resp = Client.GetPost(privatePost.Id, "")
 	CheckForbiddenStatus(t, resp)
 
 	Client.Logout()
 	_, resp = Client.GetPost(model.NewId(), "")
 	CheckUnauthorizedStatus(t, resp)
 
-	post, resp = th.SystemAdminClient.GetPost(th.BasicPost.Id, "")
+	_, resp = th.SystemAdminClient.GetPost(th.BasicPost.Id, "")
 	CheckNoError(t, resp)
 }
 
@@ -1267,7 +1267,7 @@ func TestGetPostThread(t *testing.T) {
 	_, resp = Client.GetPostThread(model.NewId(), "")
 	CheckUnauthorizedStatus(t, resp)
 
-	list, resp = th.SystemAdminClient.GetPostThread(th.BasicPost.Id, "")
+	_, resp = th.SystemAdminClient.GetPostThread(th.BasicPost.Id, "")
 	CheckNoError(t, resp)
 }
 
@@ -1351,12 +1351,13 @@ func TestSearchPosts(t *testing.T) {
 		t.Fatal("wrong search")
 	}
 
-	if posts, resp = Client.SearchPosts(th.BasicTeam.Id, "*", false); len(posts.Order) != 0 {
+	if posts, _ = Client.SearchPosts(th.BasicTeam.Id, "*", false); len(posts.Order) != 0 {
 		t.Fatal("searching for just * shouldn't return any results")
 	}
 
 	posts, resp = Client.SearchPosts(th.BasicTeam.Id, "post1 post2", true)
 	CheckNoError(t, resp)
+
 	if len(posts.Order) != 2 {
 		t.Fatal("wrong search results")
 	}

api4/preference_test.go

@@ -105,15 +105,15 @@ func TestGetPreferencesByCategory(t *testing.T) {
 		t.Fatalf("received the wrong number of preferences %v:%v", len(prefs), 2)
 	}
 
-	prefs, resp = Client.GetPreferencesByCategory(user1.Id, "junk")
+	_, resp = Client.GetPreferencesByCategory(user1.Id, "junk")
 	CheckNotFoundStatus(t, resp)
 
 	th.LoginBasic2()
 
-	prefs, resp = Client.GetPreferencesByCategory(th.BasicUser2.Id, category)
+	_, resp = Client.GetPreferencesByCategory(th.BasicUser2.Id, category)
 	CheckNotFoundStatus(t, resp)
 
-	prefs, resp = Client.GetPreferencesByCategory(user1.Id, category)
+	_, resp = Client.GetPreferencesByCategory(user1.Id, category)
 	CheckForbiddenStatus(t, resp)
 
 	prefs, resp = Client.GetPreferencesByCategory(th.BasicUser2.Id, "junk")
@@ -309,7 +309,7 @@ func TestDeletePreferences(t *testing.T) {
 
 	th.LoginBasic()
 
-	prefs, resp := Client.GetPreferences(th.BasicUser.Id)
+	prefs, _ := Client.GetPreferences(th.BasicUser.Id)
 	originalCount := len(prefs)
 
 	// save 10 preferences
@@ -328,7 +328,7 @@ func TestDeletePreferences(t *testing.T) {
 	// delete 10 preferences
 	th.LoginBasic2()
 
-	_, resp = Client.DeletePreferences(th.BasicUser2.Id, &preferences)
+	_, resp := Client.DeletePreferences(th.BasicUser2.Id, &preferences)
 	CheckForbiddenStatus(t, resp)
 
 	th.LoginBasic()
@@ -339,7 +339,7 @@ func TestDeletePreferences(t *testing.T) {
 	_, resp = Client.DeletePreferences(th.BasicUser2.Id, &preferences)
 	CheckForbiddenStatus(t, resp)
 
-	prefs, resp = Client.GetPreferences(th.BasicUser.Id)
+	prefs, _ = Client.GetPreferences(th.BasicUser.Id)
 	if len(prefs) != originalCount {
 		t.Fatal("should've deleted preferences")
 	}

api4/role_test.go

@@ -130,7 +130,7 @@ func TestGetRolesByNames(t *testing.T) {
 	assert.Contains(t, received, role3)
 
 	// Check a list of non-existent roles.
-	received, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId()})
+	_, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId()})
 	CheckNoError(t, resp)
 
 	// Empty list should error.
@@ -138,11 +138,11 @@ func TestGetRolesByNames(t *testing.T) {
 	CheckBadRequestStatus(t, resp)
 
 	// Invalid role name should error.
-	received, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId(), "!!!!!!"})
+	_, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId(), "!!!!!!"})
 	CheckBadRequestStatus(t, resp)
 
 	// Empty/whitespace rolenames should be ignored.
-	received, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId(), "", "    "})
+	_, resp = th.Client.GetRolesByNames([]string{model.NewId(), model.NewId(), "", "    "})
 	CheckNoError(t, resp)
 }
 
@@ -178,16 +178,16 @@ func TestPatchRole(t *testing.T) {
 	assert.Equal(t, received.SchemeManaged, role.SchemeManaged)
 
 	// Check a no-op patch succeeds.
-	received, resp = th.SystemAdminClient.PatchRole(role.Id, patch)
+	_, resp = th.SystemAdminClient.PatchRole(role.Id, patch)
 	CheckNoError(t, resp)
 
-	received, resp = th.SystemAdminClient.PatchRole("junk", patch)
+	_, resp = th.SystemAdminClient.PatchRole("junk", patch)
 	CheckBadRequestStatus(t, resp)
 
-	received, resp = th.Client.PatchRole(model.NewId(), patch)
+	_, resp = th.Client.PatchRole(model.NewId(), patch)
 	CheckNotFoundStatus(t, resp)
 
-	received, resp = th.Client.PatchRole(role.Id, patch)
+	_, resp = th.Client.PatchRole(role.Id, patch)
 	CheckForbiddenStatus(t, resp)
 
 	// Check a change that the license would not allow.
@@ -195,7 +195,7 @@ func TestPatchRole(t *testing.T) {
 		Permissions: &[]string{"manage_system", "manage_webhooks"},
 	}
 
-	received, resp = th.SystemAdminClient.PatchRole(role.Id, patch)
+	_, resp = th.SystemAdminClient.PatchRole(role.Id, patch)
 	CheckNotImplementedStatus(t, resp)
 
 	// Add a license.

api4/status_test.go

@@ -150,11 +150,11 @@ func TestUpdateUserStatus(t *testing.T) {
 	}
 
 	toUpdateUserStatus.Status = "online"
-	updateUserStatus, resp = Client.UpdateUserStatus(th.BasicUser2.Id, toUpdateUserStatus)
+	_, resp = Client.UpdateUserStatus(th.BasicUser2.Id, toUpdateUserStatus)
 	CheckForbiddenStatus(t, resp)
 
 	toUpdateUserStatus.Status = "online"
-	updateUserStatus, resp = th.SystemAdminClient.UpdateUserStatus(th.BasicUser2.Id, toUpdateUserStatus)
+	updateUserStatus, _ = th.SystemAdminClient.UpdateUserStatus(th.BasicUser2.Id, toUpdateUserStatus)
 	if updateUserStatus.Status != "online" {
 		t.Fatal("Should return online status")
 	}

api4/team_test.go

@@ -858,10 +858,10 @@ func TestSearchAllTeams(t *testing.T) {
 
 	Client.Logout()
 
-	rteams, resp = Client.SearchTeams(&model.TeamSearch{Term: pTeam.Name})
+	_, resp = Client.SearchTeams(&model.TeamSearch{Term: pTeam.Name})
 	CheckUnauthorizedStatus(t, resp)
 
-	rteams, resp = Client.SearchTeams(&model.TeamSearch{Term: pTeam.DisplayName})
+	_, resp = Client.SearchTeams(&model.TeamSearch{Term: pTeam.DisplayName})
 	CheckUnauthorizedStatus(t, resp)
 }
 
@@ -1148,10 +1148,10 @@ func TestGetTeamMembers(t *testing.T) {
 	CheckForbiddenStatus(t, resp)
 
 	Client.Logout()
-	rmembers, resp = Client.GetTeamMembers(team.Id, 0, 1, "")
+	_, resp = Client.GetTeamMembers(team.Id, 0, 1, "")
 	CheckUnauthorizedStatus(t, resp)
 
-	rmembers, resp = th.SystemAdminClient.GetTeamMembers(team.Id, 0, 100, "")
+	_, resp = th.SystemAdminClient.GetTeamMembers(team.Id, 0, 100, "")
 	CheckNoError(t, resp)
 }
 
@@ -1220,10 +1220,10 @@ func TestGetTeamMembersByIds(t *testing.T) {
 		t.Fatal("1 user should be returned")
 	}
 
-	tm1, resp = Client.GetTeamMembersByIds("junk", []string{th.BasicUser.Id})
+	_, resp = Client.GetTeamMembersByIds("junk", []string{th.BasicUser.Id})
 	CheckBadRequestStatus(t, resp)
 
-	tm1, resp = Client.GetTeamMembersByIds(model.NewId(), []string{th.BasicUser.Id})
+	_, resp = Client.GetTeamMembersByIds(model.NewId(), []string{th.BasicUser.Id})
 	CheckForbiddenStatus(t, resp)
 
 	Client.Logout()
@@ -1244,7 +1244,7 @@ func TestAddTeamMember(t *testing.T) {
 
 	// Regular user can't add a member to a team they don't belong to.
 	th.LoginBasic2()
-	tm, resp := Client.AddTeamMember(team.Id, otherUser.Id)
+	_, resp := Client.AddTeamMember(team.Id, otherUser.Id)
 	CheckForbiddenStatus(t, resp)
 	if resp.Error == nil {
 		t.Fatalf("Error is nil")
@@ -1253,7 +1253,7 @@ func TestAddTeamMember(t *testing.T) {
 
 	// Regular user can add a member to a team they belong to.
 	th.LoginBasic()
-	tm, resp = Client.AddTeamMember(team.Id, otherUser.Id)
+	tm, resp := Client.AddTeamMember(team.Id, otherUser.Id)
 	CheckNoError(t, resp)
 	CheckCreatedStatus(t, resp)
 
@@ -1370,7 +1370,7 @@ func TestAddTeamMember(t *testing.T) {
 	token.CreateAt = model.GetMillis() - 1000*60*60*50
 	<-th.App.Srv.Store.Token().Save(token)
 
-	tm, resp = Client.AddTeamMemberFromInvite(token.Token, "")
+	_, resp = Client.AddTeamMemberFromInvite(token.Token, "")
 	CheckBadRequestStatus(t, resp)
 	th.App.DeleteToken(token)
 
@@ -1382,7 +1382,7 @@ func TestAddTeamMember(t *testing.T) {
 	)
 	<-th.App.Srv.Store.Token().Save(token)
 
-	tm, resp = Client.AddTeamMemberFromInvite(token.Token, "")
+	_, resp = Client.AddTeamMemberFromInvite(token.Token, "")
 	CheckNotFoundStatus(t, resp)
 	th.App.DeleteToken(token)
 
@@ -1428,13 +1428,13 @@ func TestAddTeamMembers(t *testing.T) {
 
 	// Regular user can't add a member to a team they don't belong to.
 	th.LoginBasic2()
-	tm, resp := Client.AddTeamMembers(team.Id, userList)
+	_, resp := Client.AddTeamMembers(team.Id, userList)
 	CheckForbiddenStatus(t, resp)
 	Client.Logout()
 
 	// Regular user can add a member to a team they belong to.
 	th.LoginBasic()
-	tm, resp = Client.AddTeamMembers(team.Id, userList)
+	tm, resp := Client.AddTeamMembers(team.Id, userList)
 	CheckNoError(t, resp)
 	CheckCreatedStatus(t, resp)
 
@@ -2018,7 +2018,7 @@ func TestGetTeamInviteInfo(t *testing.T) {
 	team, resp = th.SystemAdminClient.UpdateTeam(team)
 	CheckNoError(t, resp)
 
-	team, resp = Client.GetTeamInviteInfo(team.InviteId)
+	_, resp = Client.GetTeamInviteInfo(team.InviteId)
 	CheckNoError(t, resp)
 
 	_, resp = Client.GetTeamInviteInfo("junk")

api4/user_test.go

@@ -406,7 +406,7 @@ func TestGetUser(t *testing.T) {
 	CheckUnauthorizedStatus(t, resp)
 
 	// System admins should ignore privacy settings
-	ruser, resp = th.SystemAdminClient.GetUser(user.Id, resp.Etag)
+	ruser, _ = th.SystemAdminClient.GetUser(user.Id, resp.Etag)
 	if ruser.Email == "" {
 		t.Fatal("email should not be blank")
 	}
@@ -474,7 +474,7 @@ func TestGetUserByUsername(t *testing.T) {
 	CheckUnauthorizedStatus(t, resp)
 
 	// System admins should ignore privacy settings
-	ruser, resp = th.SystemAdminClient.GetUserByUsername(user.Username, resp.Etag)
+	ruser, _ = th.SystemAdminClient.GetUserByUsername(user.Username, resp.Etag)
 	if ruser.Email == "" {
 		t.Fatal("email should not be blank")
 	}
@@ -539,7 +539,7 @@ func TestGetUserByEmail(t *testing.T) {
 	CheckUnauthorizedStatus(t, resp)
 
 	// System admins should ignore privacy settings
-	ruser, resp = th.SystemAdminClient.GetUserByEmail(user.Email, resp.Etag)
+	ruser, _ = th.SystemAdminClient.GetUserByEmail(user.Email, resp.Etag)
 	if ruser.Email == "" {
 		t.Fatal("email should not be blank")
 	}
@@ -2208,14 +2208,14 @@ func TestVerifyUserEmail(t *testing.T) {
 
 	user := model.User{Email: th.GenerateTestEmail(), Nickname: "Darth Vader", Password: "hello1", Username: GenerateTestUsername(), Roles: model.SYSTEM_ADMIN_ROLE_ID + " " + model.SYSTEM_USER_ROLE_ID}
 
-	ruser, resp := Client.CreateUser(&user)
+	ruser, _ := Client.CreateUser(&user)
 
 	token, err := th.App.CreateVerifyEmailToken(ruser.Id)
 	if err != nil {
 		t.Fatal("Unable to create email verify token")
 	}
 
-	_, resp = Client.VerifyUserEmail(token.Token)
+	_, resp := Client.VerifyUserEmail(token.Token)
 	CheckNoError(t, resp)
 
 	_, resp = Client.VerifyUserEmail(GenerateTestId())
@@ -2329,7 +2329,7 @@ func TestCBALogin(t *testing.T) {
 	}
 
 	Client.HttpHeader["X-SSL-Client-Cert-Subject-DN"] = "C=US, ST=Maryland, L=Pasadena, O=Brent Baccala, OU=FreeSoft, CN=www.freesoft.org/emailAddress=" + th.BasicUser.Email
-	user, resp = Client.Login(th.BasicUser.Email, "")
+	user, _ = Client.Login(th.BasicUser.Email, "")
 	if !(user != nil && user.Email == th.BasicUser.Email) {
 		t.Fatal("Should have been able to login")
 	}
@@ -2340,13 +2340,13 @@ func TestCBALogin(t *testing.T) {
 	})
 
 	Client.HttpHeader["X-SSL-Client-Cert-Subject-DN"] = "C=US, ST=Maryland, L=Pasadena, O=Brent Baccala, OU=FreeSoft, CN=www.freesoft.org/emailAddress=" + th.BasicUser.Email
-	user, resp = Client.Login(th.BasicUser.Email, "")
+	user, _ = Client.Login(th.BasicUser.Email, "")
 	if resp.Error.StatusCode != 400 && user == nil {
 		t.Fatal("Should have failed because password is required")
 	}
 
 	Client.HttpHeader["X-SSL-Client-Cert-Subject-DN"] = "C=US, ST=Maryland, L=Pasadena, O=Brent Baccala, OU=FreeSoft, CN=www.freesoft.org/emailAddress=" + th.BasicUser.Email
-	user, resp = Client.Login(th.BasicUser.Email, th.BasicUser.Password)
+	user, _ = Client.Login(th.BasicUser.Email, th.BasicUser.Password)
 	if !(user != nil && user.Email == th.BasicUser.Email) {
 		t.Fatal("Should have been able to login")
 	}
@@ -2597,7 +2597,7 @@ func TestGetUserAccessToken(t *testing.T) {
 	_, resp = AdminClient.GetUserAccessToken(token.Id)
 	CheckNoError(t, resp)
 
-	token, resp = Client.CreateUserAccessToken(th.BasicUser.Id, testDescription)
+	_, resp = Client.CreateUserAccessToken(th.BasicUser.Id, testDescription)
 	CheckNoError(t, resp)
 
 	rtokens, resp := Client.GetUserAccessTokensForUser(th.BasicUser.Id, 0, 100)

api4/webhook_test.go

@@ -365,7 +365,7 @@ func TestGetOutgoingWebhooks(t *testing.T) {
 		t.Fatal("missing hook")
 	}
 
-	hooks, resp = th.SystemAdminClient.GetOutgoingWebhooksForChannel(model.NewId(), 0, 1000, "")
+	_, resp = th.SystemAdminClient.GetOutgoingWebhooksForChannel(model.NewId(), 0, 1000, "")
 	CheckForbiddenStatus(t, resp)
 
 	_, resp = Client.GetOutgoingWebhooks(0, 1000, "")

app/app.go

@@ -642,7 +642,6 @@ func (a *App) DoEmojisPermissionsMigration() {
 			mlog.Critical(err.Error())
 			return
 		}
-		break
 	case model.RESTRICT_EMOJI_CREATION_ADMIN:
 		role, err = a.GetRoleByName(model.TEAM_ADMIN_ROLE_ID)
 		if err != nil {
@@ -650,10 +649,8 @@ func (a *App) DoEmojisPermissionsMigration() {
 			mlog.Critical(err.Error())
 			return
 		}
-		break
 	case model.RESTRICT_EMOJI_CREATION_SYSTEM_ADMIN:
 		role = nil
-		break
 	default:
 		mlog.Critical("Failed to migrate emojis creation permissions from mattermost config.")
 		mlog.Critical("Invalid restrict emoji creation setting")
@@ -703,13 +700,13 @@ func (a *App) StartElasticsearch() {
 	})
 
 	a.AddConfigListener(func(oldConfig *model.Config, newConfig *model.Config) {
-		if *oldConfig.ElasticsearchSettings.EnableIndexing == false && *newConfig.ElasticsearchSettings.EnableIndexing == true {
+		if !*oldConfig.ElasticsearchSettings.EnableIndexing && *newConfig.ElasticsearchSettings.EnableIndexing {
 			a.Go(func() {
 				if err := a.Elasticsearch.Start(); err != nil {
 					mlog.Error(err.Error())
 				}
 			})
-		} else if *oldConfig.ElasticsearchSettings.EnableIndexing == true && *newConfig.ElasticsearchSettings.EnableIndexing == false {
+		} else if *oldConfig.ElasticsearchSettings.EnableIndexing && !*newConfig.ElasticsearchSettings.EnableIndexing {
 			a.Go(func() {
 				if err := a.Elasticsearch.Stop(); err != nil {
 					mlog.Error(err.Error())
@@ -717,7 +714,7 @@ func (a *App) StartElasticsearch() {
 			})
 		} else if *oldConfig.ElasticsearchSettings.Password != *newConfig.ElasticsearchSettings.Password || *oldConfig.ElasticsearchSettings.Username != *newConfig.ElasticsearchSettings.Username || *oldConfig.ElasticsearchSettings.ConnectionUrl != *newConfig.ElasticsearchSettings.ConnectionUrl || *oldConfig.ElasticsearchSettings.Sniff != *newConfig.ElasticsearchSettings.Sniff {
 			a.Go(func() {
-				if *oldConfig.ElasticsearchSettings.EnableIndexing == true {
+				if *oldConfig.ElasticsearchSettings.EnableIndexing {
 					if err := a.Elasticsearch.Stop(); err != nil {
 						mlog.Error(err.Error())
 					}

app/auto_responder_test.go

@@ -94,7 +94,7 @@ func TestSendAutoResponseSuccess(t *testing.T) {
 	userUpdated1, err := th.App.PatchUser(user.Id, patch, true)
 	require.Nil(t, err)
 
-	firstPost, err := th.App.CreatePost(&model.Post{
+	firstPost, _ := th.App.CreatePost(&model.Post{
 		ChannelId: th.BasicChannel.Id,
 		Message:   "zz" + model.NewId() + "a",
 		UserId:    th.BasicUser.Id},
@@ -134,7 +134,7 @@ func TestSendAutoResponseFailure(t *testing.T) {
 	userUpdated1, err := th.App.PatchUser(user.Id, patch, true)
 	require.Nil(t, err)
 
-	firstPost, err := th.App.CreatePost(&model.Post{
+	firstPost, _ := th.App.CreatePost(&model.Post{
 		ChannelId: th.BasicChannel.Id,
 		Message:   "zz" + model.NewId() + "a",
 		UserId:    th.BasicUser.Id},

app/brand.go

@@ -27,10 +27,10 @@ func (a *App) SaveBrandImage(imageData *multipart.FileHeader) *model.AppError {
 	}
 
 	file, err := imageData.Open()
-	defer file.Close()
 	if err != nil {
 		return model.NewAppError("SaveBrandImage", "brand.save_brand_image.open.app_error", nil, err.Error(), http.StatusBadRequest)
 	}
+	defer file.Close()
 
 	// Decode image config first to check dimensions before loading the whole thing into memory later on
 	config, _, err := image.DecodeConfig(file)

app/channel.go

@@ -52,7 +52,7 @@ func (a *App) JoinDefaultChannels(teamId string, user *model.User, shouldBeAdmin
 	} else {
 		seenChannels := map[string]bool{}
 		for _, channelName := range a.Config().TeamSettings.ExperimentalDefaultChannels {
-			if seenChannels[channelName] != true {
+			if !seenChannels[channelName] {
 				defaultChannelList = append(defaultChannelList, channelName)
 				seenChannels[channelName] = true
 			}
@@ -1398,7 +1398,7 @@ func (a *App) removeUserFromChannel(userIdToRemove string, removerUserId string,
 
 		var actorUser *model.User
 		if removerUserId != "" {
-			actorUser, err = a.GetUser(removerUserId)
+			actorUser, _ = a.GetUser(removerUserId)
 		}
 
 		a.Go(func() {

app/config_test.go

@@ -122,12 +122,10 @@ func TestEnsureInstallationDate(t *testing.T) {
 			sqlStore := th.App.Srv.Store.User().(*sqlstore.SqlUserStore)
 			sqlStore.GetMaster().Exec("DELETE FROM Users")
 
-			var users []*model.User
 			for _, createAt := range tc.UsersCreationDates {
 				user := th.CreateUser()
 				user.CreateAt = createAt
 				sqlStore.GetMaster().Exec("UPDATE Users SET CreateAt = :CreateAt WHERE Id = :UserId", map[string]interface{}{"CreateAt": createAt, "UserId": user.Id})
-				users = append(users, user)
 			}
 
 			if tc.PrevInstallationDate == nil {

app/diagnostics_test.go

@@ -103,19 +103,13 @@ func TestDiagnostics(t *testing.T) {
 
 		info := ""
 		// Collect the info sent.
+		Loop:
 		for {
-			done := false
 			select {
 			case result := <-data:
 				info += result
 			case <-time.After(time.Second * 1):
-				// Done recieving
+				break Loop
-				done = true
-				break
-			}
-
-			if done {
-				break
 			}
 		}
 

app/file.go

@@ -613,19 +613,18 @@ func (a *App) GetFileInfo(fileId string) (*model.FileInfo, *model.AppError) {
 }
 
 func (a *App) CopyFileInfos(userId string, fileIds []string) ([]string, *model.AppError) {
-	newFileIds := []string{}
+	var newFileIds []string
 
 	now := model.GetMillis()
 
 	for _, fileId := range fileIds {
-		fileInfo := &model.FileInfo{}
+		result := <-a.Srv.Store.FileInfo().Get(fileId)
 
-		if result := <-a.Srv.Store.FileInfo().Get(fileId); result.Err != nil {
+		if result.Err != nil {
 			return nil, result.Err
-		} else {
-			fileInfo = result.Data.(*model.FileInfo)
 		}
 
+		fileInfo := result.Data.(*model.FileInfo)
 		fileInfo.Id = model.NewId()
 		fileInfo.CreatorId = userId
 		fileInfo.CreateAt = now

app/import_functions.go

@@ -123,9 +123,9 @@ func (a *App) ImportRole(data *RoleImportData, dryRun bool, isSchemeRole bool) *
 	}
 
 	if len(role.Id) == 0 {
-		role, err = a.CreateRole(role)
+		_, err = a.CreateRole(role)
 	} else {
-		role, err = a.UpdateRole(role)
+		_, err = a.UpdateRole(role)
 	}
 
 	return err

app/notification_email.go

@@ -306,7 +306,7 @@ func getFormattedPostTime(user *model.User, post *model.Post, useMilitaryTime bo
 		Year:     fmt.Sprintf("%d", localTime.Year()),
 		Month:    translateFunc(localTime.Month().String()),
 		Day:      fmt.Sprintf("%d", localTime.Day()),
-		Hour:     fmt.Sprintf("%s", hour),
+		Hour:     hour,
 		Minute:   fmt.Sprintf("%02d"+period, localTime.Minute()),
 		TimeZone: zone,
 	}

app/permissions.go

@@ -138,13 +138,9 @@ func (a *App) ExportPermissions(w io.Writer) error {
 	schemeExport = append(schemeExport, []byte("\n")...)
 
 	_, err = w.Write(schemeExport)
-	if err != nil {
 	return err
 }
 
-	return nil
-}
-
 func (a *App) ImportPermissions(jsonl io.Reader) error {
 	createdSchemeIDs := []string{}
 

app/plugin_hooks_test.go

@@ -89,7 +89,7 @@ func TestHookMessageWillBePosted(t *testing.T) {
 			Message:   "message_",
 			CreateAt:  model.GetMillis() - 10000,
 		}
-		post, err := th.App.CreatePost(post, th.BasicChannel, false)
+		_, err := th.App.CreatePost(post, th.BasicChannel, false)
 		if assert.NotNil(t, err) {
 			assert.Equal(t, "Post rejected by plugin. rejected", err.Message)
 		}
@@ -129,7 +129,7 @@ func TestHookMessageWillBePosted(t *testing.T) {
 			Message:   "message_",
 			CreateAt:  model.GetMillis() - 10000,
 		}
-		post, err := th.App.CreatePost(post, th.BasicChannel, false)
+		_, err := th.App.CreatePost(post, th.BasicChannel, false)
 		if assert.NotNil(t, err) {
 			assert.Equal(t, "Post rejected by plugin. rejected", err.Message)
 		}
@@ -327,7 +327,7 @@ func TestHookMessageHasBeenPosted(t *testing.T) {
 		Message:   "message",
 		CreateAt:  model.GetMillis() - 10000,
 	}
-	post, err := th.App.CreatePost(post, th.BasicChannel, false)
+	_, err := th.App.CreatePost(post, th.BasicChannel, false)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -424,7 +424,7 @@ func TestHookMessageHasBeenUpdated(t *testing.T) {
 	}
 	assert.Equal(t, "message_", post.Message)
 	post.Message = post.Message + "edited"
-	post, err = th.App.UpdatePost(post, true)
+	_, err = th.App.UpdatePost(post, true)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -785,7 +785,7 @@ func TestUserHasLoggedIn(t *testing.T) {
 
 	time.Sleep(2 * time.Second)
 
-	user, err = th.App.GetUser(th.BasicUser.Id)
+	user, _ = th.App.GetUser(th.BasicUser.Id)
 
 	if user.FirstName != "plugin-callback-success" {
 		t.Errorf("Expected firstname overwrite, got default")

app/session_test.go

@@ -54,8 +54,6 @@ func TestGetSessionIdleTimeoutInMinutes(t *testing.T) {
 	require.Nil(t, err)
 	assert.Equal(t, rsession.Id, session.Id)
 
-	rsession, err = th.App.GetSession(session.Token)
-
 	// Test regular session, should timeout
 	time := session.LastActivityAt - (1000 * 60 * 6)
 	<-th.App.Srv.Store.Session().UpdateLastActivityAt(session.Id, time)

app/team.go

@@ -468,7 +468,7 @@ func (a *App) JoinUserToTeam(team *model.Team, user *model.User, userRequestorId
 	if a.PluginsReady() {
 		var actor *model.User
 		if userRequestorId != "" {
-			actor, err = a.GetUser(userRequestorId)
+			actor, _ = a.GetUser(userRequestorId)
 		}
 
 		a.Go(func() {
@@ -798,7 +798,7 @@ func (a *App) LeaveTeam(team *model.Team, user *model.User, requestorId string)
 	if a.PluginsReady() {
 		var actor *model.User
 		if requestorId != "" {
-			actor, err = a.GetUser(requestorId)
+			actor, _ = a.GetUser(requestorId)
 		}
 
 		a.Go(func() {

cmd/mattermost/commands/permissions.go

@@ -124,9 +124,5 @@ func importPermissionsCmdF(command *cobra.Command, args []string) error {
 	}
 	defer file.Close()
 
-	if err := a.ImportPermissions(file); err != nil {
+	return a.ImportPermissions(file)
-		return err
-	}
-
-	return nil
 }

cmd/mattermost/commands/permissions_test.go

@@ -30,7 +30,7 @@ func permissionsLicenseRequiredTest(t *testing.T, subcommand string) {
 		t.Fail()
 	}
 	args := []string{"-test.run", "ExecCommand", "--", "--disableconfigwatch", "permissions", subcommand}
-	output, err := exec.Command(path, args...).CombinedOutput()
+	output, _ := exec.Command(path, args...).CombinedOutput()
 
 	actual := string(output)
 	expected := utils.T("cli.license.critical")

model/config.go

@@ -2370,7 +2370,7 @@ func (ss *ServiceSettings) isValid() *AppError {
 		}
 	}
 
-	host, port, err := net.SplitHostPort(*ss.ListenAddress)
+	host, port, _ := net.SplitHostPort(*ss.ListenAddress)
 	var isValidHost bool
 	if host == "" {
 		isValidHost = true

model/session_test.go

@@ -31,7 +31,7 @@ func TestSessionDeepCopy(t *testing.T) {
 	session = &Session{Id: sessionId}
 	copySession = session.DeepCopy()
 
-	assert.Equal(t, sessionId, session.Id)
+	assert.Equal(t, sessionId, copySession.Id)
 
 	session = &Session{TeamMembers: []*TeamMember{}}
 	copySession = session.DeepCopy()

model/user_test.go

@@ -52,7 +52,7 @@ func TestUserDeepCopy(t *testing.T) {
 	user = &User{Id: id}
 	copyUser = user.DeepCopy()
 
-	assert.Equal(t, id, user.Id)
+	assert.Equal(t, id, copyUser.Id)
 }
 
 func TestUserJson(t *testing.T) {

plugin/client_rpc.go

@@ -295,7 +295,6 @@ func (g *hooksRPCClient) ServeHTTP(c *Context, w http.ResponseWriter, r *http.Re
 		g.log.Error("Plugin failed to ServeHTTP, RPC call failed", mlog.Err(err))
 		http.Error(w, "500 internal server error", http.StatusInternalServerError)
 	}
-	return
 }
 
 func (s *hooksRPCServer) ServeHTTP(args *Z_ServeHTTPArgs, returns *struct{}) error {

plugin/client_rpc_generated.go

@@ -209,7 +209,7 @@ func (g *hooksRPCClient) MessageHasBeenPosted(c *Context, post *model.Post) {
 			g.log.Error("RPC call MessageHasBeenPosted to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) MessageHasBeenPosted(args *Z_MessageHasBeenPostedArgs, returns *Z_MessageHasBeenPostedReturns) error {
@@ -244,7 +244,7 @@ func (g *hooksRPCClient) MessageHasBeenUpdated(c *Context, newPost, oldPost *mod
 			g.log.Error("RPC call MessageHasBeenUpdated to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) MessageHasBeenUpdated(args *Z_MessageHasBeenUpdatedArgs, returns *Z_MessageHasBeenUpdatedReturns) error {
@@ -278,7 +278,7 @@ func (g *hooksRPCClient) ChannelHasBeenCreated(c *Context, channel *model.Channe
 			g.log.Error("RPC call ChannelHasBeenCreated to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) ChannelHasBeenCreated(args *Z_ChannelHasBeenCreatedArgs, returns *Z_ChannelHasBeenCreatedReturns) error {
@@ -313,7 +313,7 @@ func (g *hooksRPCClient) UserHasJoinedChannel(c *Context, channelMember *model.C
 			g.log.Error("RPC call UserHasJoinedChannel to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) UserHasJoinedChannel(args *Z_UserHasJoinedChannelArgs, returns *Z_UserHasJoinedChannelReturns) error {
@@ -348,7 +348,7 @@ func (g *hooksRPCClient) UserHasLeftChannel(c *Context, channelMember *model.Cha
 			g.log.Error("RPC call UserHasLeftChannel to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) UserHasLeftChannel(args *Z_UserHasLeftChannelArgs, returns *Z_UserHasLeftChannelReturns) error {
@@ -383,7 +383,7 @@ func (g *hooksRPCClient) UserHasJoinedTeam(c *Context, teamMember *model.TeamMem
 			g.log.Error("RPC call UserHasJoinedTeam to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) UserHasJoinedTeam(args *Z_UserHasJoinedTeamArgs, returns *Z_UserHasJoinedTeamReturns) error {
@@ -418,7 +418,7 @@ func (g *hooksRPCClient) UserHasLeftTeam(c *Context, teamMember *model.TeamMembe
 			g.log.Error("RPC call UserHasLeftTeam to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) UserHasLeftTeam(args *Z_UserHasLeftTeamArgs, returns *Z_UserHasLeftTeamReturns) error {
@@ -487,7 +487,7 @@ func (g *hooksRPCClient) UserHasLoggedIn(c *Context, user *model.User) {
 			g.log.Error("RPC call UserHasLoggedIn to plugin failed.", mlog.Err(err))
 		}
 	}
-	return
+
 }
 
 func (s *hooksRPCServer) UserHasLoggedIn(args *Z_UserHasLoggedInArgs, returns *Z_UserHasLoggedInReturns) error {
@@ -2125,7 +2125,7 @@ func (g *apiRPCClient) PublishWebSocketEvent(event string, payload map[string]in
 	if err := g.client.Call("Plugin.PublishWebSocketEvent", _args, _returns); err != nil {
 		log.Printf("RPC call to PublishWebSocketEvent API failed: %s", err.Error())
 	}
-	return
+
 }
 
 func (s *apiRPCServer) PublishWebSocketEvent(args *Z_PublishWebSocketEventArgs, returns *Z_PublishWebSocketEventReturns) error {
@@ -2242,7 +2242,7 @@ func (g *apiRPCClient) LogDebug(msg string, keyValuePairs ...interface{}) {
 	if err := g.client.Call("Plugin.LogDebug", _args, _returns); err != nil {
 		log.Printf("RPC call to LogDebug API failed: %s", err.Error())
 	}
-	return
+
 }
 
 func (s *apiRPCServer) LogDebug(args *Z_LogDebugArgs, returns *Z_LogDebugReturns) error {
@@ -2270,7 +2270,7 @@ func (g *apiRPCClient) LogInfo(msg string, keyValuePairs ...interface{}) {
 	if err := g.client.Call("Plugin.LogInfo", _args, _returns); err != nil {
 		log.Printf("RPC call to LogInfo API failed: %s", err.Error())
 	}
-	return
+
 }
 
 func (s *apiRPCServer) LogInfo(args *Z_LogInfoArgs, returns *Z_LogInfoReturns) error {
@@ -2298,7 +2298,7 @@ func (g *apiRPCClient) LogError(msg string, keyValuePairs ...interface{}) {
 	if err := g.client.Call("Plugin.LogError", _args, _returns); err != nil {
 		log.Printf("RPC call to LogError API failed: %s", err.Error())
 	}
-	return
+
 }
 
 func (s *apiRPCServer) LogError(args *Z_LogErrorArgs, returns *Z_LogErrorReturns) error {
@@ -2326,7 +2326,7 @@ func (g *apiRPCClient) LogWarn(msg string, keyValuePairs ...interface{}) {
 	if err := g.client.Call("Plugin.LogWarn", _args, _returns); err != nil {
 		log.Printf("RPC call to LogWarn API failed: %s", err.Error())
 	}
-	return
+
 }
 
 func (s *apiRPCServer) LogWarn(args *Z_LogWarnArgs, returns *Z_LogWarnReturns) error {

plugin/environment.go

@@ -18,7 +18,6 @@ import (
 )
 
 type apiImplCreatorFunc func(*model.Manifest) API
-type supervisorCreatorFunc func(*model.BundleInfo, *mlog.Logger, API) (*supervisor, error)
 
 // multiPluginHookRunnerFunc is a callback function to invoke as part of RunMultiPluginHook.
 //

plugin/interface_generator/main.go

@@ -229,7 +229,7 @@ func (g *hooksRPCClient) {{.Name}}{{funcStyle .Params}} {{funcStyle .Return}} {
 			g.log.Error("RPC call {{.Name}} to plugin failed.", mlog.Err(err))
 		}
 	}
-	return {{destruct "_returns." .Return}}
+	{{ if .Return }} return {{destruct "_returns." .Return}} {{ end }}
 }
 
 func (s *hooksRPCServer) {{.Name}}(args *{{.Name | obscure}}Args, returns *{{.Name | obscure}}Returns) error {
@@ -260,7 +260,7 @@ func (g *apiRPCClient) {{.Name}}{{funcStyle .Params}} {{funcStyle .Return}} {
 	if err := g.client.Call("Plugin.{{.Name}}", _args, _returns); err != nil {
 		log.Printf("RPC call to {{.Name}} API failed: %s", err.Error())
 	}
-	return {{destruct "_returns." .Return}}
+	{{ if .Return }} return {{destruct "_returns." .Return}} {{ end }}
 }
 
 func (s *apiRPCServer) {{.Name}}(args *{{.Name | obscure}}Args, returns *{{.Name | obscure}}Returns) error {

plugin/io_rpc.go

@@ -9,19 +9,6 @@ import (
 	"io"
 )
 
-type rwc struct {
-	io.ReadCloser
-	io.WriteCloser
-}
-
-func (rwc *rwc) Close() (err error) {
-	err = rwc.WriteCloser.Close()
-	if rerr := rwc.ReadCloser.Close(); err == nil {
-		err = rerr
-	}
-	return
-}
-
 type remoteIOReader struct {
 	conn io.ReadWriteCloser
 }

plugin/supervisor.go

@@ -17,7 +17,6 @@ import (
 )
 
 type supervisor struct {
-	pluginId    string
 	client      *plugin.Client
 	hooks       Hooks
 	implemented [TotalHooksId]bool

store/sqlstore/channel_store.go

@@ -1859,7 +1859,7 @@ func (s SqlChannelStore) ClearAllCustomRoleAssignments() store.StoreChannel {
 		lastUserId := strings.Repeat("0", 26)
 		lastChannelId := strings.Repeat("0", 26)
 
-		for true {
+		for {
 			var transaction *gorp.Transaction
 			var err error
 

store/sqlstore/team_store.go

@@ -851,7 +851,7 @@ func (s SqlTeamStore) ClearAllCustomRoleAssignments() store.StoreChannel {
 		lastUserId := strings.Repeat("0", 26)
 		lastTeamId := strings.Repeat("0", 26)
 
-		for true {
+		for {
 			var transaction *gorp.Transaction
 			var err error
 

store/sqlstore/user_store.go

@@ -1255,7 +1255,7 @@ func (us SqlUserStore) ClearAllCustomRoleAssignments() store.StoreChannel {
 		builtInRoles := model.MakeDefaultRoles()
 		lastUserId := strings.Repeat("0", 26)
 
-		for true {
+		for {
 			var transaction *gorp.Transaction
 			var err error
 

store/storetest/channel_store.go

@@ -2281,9 +2281,9 @@ func testChannelStoreGetChannelsByScheme(t *testing.T, ss store.Store) {
 		Type:        model.CHANNEL_OPEN,
 	}
 
-	c1 = (<-ss.Channel().Save(c1, 100)).Data.(*model.Channel)
+	_ = (<-ss.Channel().Save(c1, 100)).Data.(*model.Channel)
-	c2 = (<-ss.Channel().Save(c2, 100)).Data.(*model.Channel)
+	_ = (<-ss.Channel().Save(c2, 100)).Data.(*model.Channel)
-	c3 = (<-ss.Channel().Save(c3, 100)).Data.(*model.Channel)
+	_ = (<-ss.Channel().Save(c3, 100)).Data.(*model.Channel)
 
 	// Get the channels by a valid Scheme ID.
 	res1 := <-ss.Channel().GetChannelsByScheme(s1.Id, 0, 100)

store/storetest/command_store.go

@@ -105,7 +105,7 @@ func testCommandStoreGetByTrigger(t *testing.T, ss store.Store) {
 	o2.Trigger = "trigger1"
 
 	o1 = (<-ss.Command().Save(o1)).Data.(*model.Command)
-	o2 = (<-ss.Command().Save(o2)).Data.(*model.Command)
+	_ = (<-ss.Command().Save(o2)).Data.(*model.Command)
 
 	if r1 := <-ss.Command().GetByTrigger(o1.TeamId, o1.Trigger); r1.Err != nil {
 		t.Fatal(r1.Err)

store/storetest/compliance_store.go

@@ -108,14 +108,14 @@ func testComplianceExport(t *testing.T, ss store.Store) {
 	o1a.UserId = u1.Id
 	o1a.CreateAt = o1.CreateAt + 10
 	o1a.Message = "zz" + model.NewId() + "b"
-	o1a = store.Must(ss.Post().Save(o1a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o1a)).(*model.Post)
 
 	o2 := &model.Post{}
 	o2.ChannelId = c1.Id
 	o2.UserId = u1.Id
 	o2.CreateAt = o1.CreateAt + 20
 	o2.Message = "zz" + model.NewId() + "b"
-	o2 = store.Must(ss.Post().Save(o2)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o2)).(*model.Post)
 
 	o2a := &model.Post{}
 	o2a.ChannelId = c1.Id
@@ -272,21 +272,21 @@ func testComplianceExportDirectMessages(t *testing.T, ss store.Store) {
 	o1a.UserId = u1.Id
 	o1a.CreateAt = o1.CreateAt + 10
 	o1a.Message = "zz" + model.NewId() + "b"
-	o1a = store.Must(ss.Post().Save(o1a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o1a)).(*model.Post)
 
 	o2 := &model.Post{}
 	o2.ChannelId = c1.Id
 	o2.UserId = u1.Id
 	o2.CreateAt = o1.CreateAt + 20
 	o2.Message = "zz" + model.NewId() + "b"
-	o2 = store.Must(ss.Post().Save(o2)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o2)).(*model.Post)
 
 	o2a := &model.Post{}
 	o2a.ChannelId = c1.Id
 	o2a.UserId = u2.Id
 	o2a.CreateAt = o1.CreateAt + 30
 	o2a.Message = "zz" + model.NewId() + "b"
-	o2a = store.Must(ss.Post().Save(o2a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o2a)).(*model.Post)
 
 	o3 := &model.Post{}
 	o3.ChannelId = cDM.Id

store/storetest/job_store.go

@@ -492,7 +492,6 @@ func testJobUpdateStatusUpdateStatusOptimistically(t *testing.T, ss store.Store)
 		if received.LastActivityAt <= lastUpdateAt {
 			t.Fatal("lastActivityAt wasn't updated")
 		}
-		lastUpdateAt = received.LastActivityAt
 	}
 }
 

store/storetest/post_store.go

@@ -514,7 +514,7 @@ func testPostStoreGetPostsWithDetails(t *testing.T, ss store.Store) {
 	o2.Message = "zz" + model.NewId() + "b"
 	o2.ParentId = o1.Id
 	o2.RootId = o1.Id
-	o2 = (<-ss.Post().Save(o2)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o2)).Data.(*model.Post)
 	time.Sleep(2 * time.Millisecond)
 
 	o2a := &model.Post{}
@@ -609,7 +609,7 @@ func testPostStoreGetPostsWithDetails(t *testing.T, ss store.Store) {
 	o6.ChannelId = o1.ChannelId
 	o6.UserId = model.NewId()
 	o6.Message = "zz" + model.NewId() + "b"
-	o6 = (<-ss.Post().Save(o6)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o6)).Data.(*model.Post)
 
 	// Should only be 6 since we hit the cache
 	r3 := (<-ss.Post().GetPosts(o1.ChannelId, 0, 30, true)).Data.(*model.PostList)
@@ -627,7 +627,7 @@ func testPostStoreGetPostsBeforeAfter(t *testing.T, ss store.Store) {
 	o0.ChannelId = model.NewId()
 	o0.UserId = model.NewId()
 	o0.Message = "zz" + model.NewId() + "b"
-	o0 = (<-ss.Post().Save(o0)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o0)).Data.(*model.Post)
 	time.Sleep(2 * time.Millisecond)
 
 	o1 := &model.Post{}
@@ -677,7 +677,7 @@ func testPostStoreGetPostsBeforeAfter(t *testing.T, ss store.Store) {
 	o5.Message = "zz" + model.NewId() + "b"
 	o5.ParentId = o4.Id
 	o5.RootId = o4.Id
-	o5 = (<-ss.Post().Save(o5)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o5)).Data.(*model.Post)
 
 	r1 := (<-ss.Post().GetPostsBefore(o1.ChannelId, o1.Id, 4, 0)).Data.(*model.PostList)
 
@@ -731,7 +731,7 @@ func testPostStoreGetPostsSince(t *testing.T, ss store.Store) {
 	o0.ChannelId = model.NewId()
 	o0.UserId = model.NewId()
 	o0.Message = "zz" + model.NewId() + "b"
-	o0 = (<-ss.Post().Save(o0)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o0)).Data.(*model.Post)
 	time.Sleep(2 * time.Millisecond)
 
 	o1 := &model.Post{}
@@ -747,7 +747,7 @@ func testPostStoreGetPostsSince(t *testing.T, ss store.Store) {
 	o2.Message = "zz" + model.NewId() + "b"
 	o2.ParentId = o1.Id
 	o2.RootId = o1.Id
-	o2 = (<-ss.Post().Save(o2)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o2)).Data.(*model.Post)
 	time.Sleep(2 * time.Millisecond)
 
 	o2a := &model.Post{}
@@ -865,7 +865,7 @@ func testPostStoreSearch(t *testing.T, ss store.Store) {
 	o1a.UserId = model.NewId()
 	o1a.Message = "corey mattermost new york"
 	o1a.Type = model.POST_JOIN_CHANNEL
-	o1a = (<-ss.Post().Save(o1a)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o1a)).Data.(*model.Post)
 
 	o2 := &model.Post{}
 	o2.ChannelId = c1.Id
@@ -877,7 +877,7 @@ func testPostStoreSearch(t *testing.T, ss store.Store) {
 	o3.ChannelId = c2.Id
 	o3.UserId = model.NewId()
 	o3.Message = "New Jersey is where John is from corey new york"
-	o3 = (<-ss.Post().Save(o3)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o3)).Data.(*model.Post)
 
 	o4 := &model.Post{}
 	o4.ChannelId = c1.Id
@@ -1045,7 +1045,7 @@ func testUserCountsWithPostsByDay(t *testing.T, ss store.Store) {
 	o1a.UserId = model.NewId()
 	o1a.CreateAt = o1.CreateAt
 	o1a.Message = "zz" + model.NewId() + "b"
-	o1a = store.Must(ss.Post().Save(o1a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o1a)).(*model.Post)
 
 	o2 := &model.Post{}
 	o2.ChannelId = c1.Id
@@ -1059,7 +1059,7 @@ func testUserCountsWithPostsByDay(t *testing.T, ss store.Store) {
 	o2a.UserId = o2.UserId
 	o2a.CreateAt = o1.CreateAt - (1000 * 60 * 60 * 24)
 	o2a.Message = "zz" + model.NewId() + "b"
-	o2a = store.Must(ss.Post().Save(o2a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o2a)).(*model.Post)
 
 	if r1 := <-ss.Post().AnalyticsUserCountsWithPostsByDay(t1.Id); r1.Err != nil {
 		t.Fatal(r1.Err)
@@ -1103,7 +1103,7 @@ func testPostCountsByDay(t *testing.T, ss store.Store) {
 	o1a.UserId = model.NewId()
 	o1a.CreateAt = o1.CreateAt
 	o1a.Message = "zz" + model.NewId() + "b"
-	o1a = store.Must(ss.Post().Save(o1a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o1a)).(*model.Post)
 
 	o2 := &model.Post{}
 	o2.ChannelId = c1.Id
@@ -1117,7 +1117,7 @@ func testPostCountsByDay(t *testing.T, ss store.Store) {
 	o2a.UserId = o2.UserId
 	o2a.CreateAt = o1.CreateAt - (1000 * 60 * 60 * 24 * 2)
 	o2a.Message = "zz" + model.NewId() + "b"
-	o2a = store.Must(ss.Post().Save(o2a)).(*model.Post)
+	_ = store.Must(ss.Post().Save(o2a)).(*model.Post)
 
 	time.Sleep(1 * time.Second)
 
@@ -1534,14 +1534,14 @@ func testPostStoreGetPostsCreatedAt(t *testing.T, ss store.Store) {
 	o2.ParentId = o1.Id
 	o2.RootId = o1.Id
 	o2.CreateAt = createTime + 1
-	o2 = (<-ss.Post().Save(o2)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o2)).Data.(*model.Post)
 
 	o3 := &model.Post{}
 	o3.ChannelId = model.NewId()
 	o3.UserId = model.NewId()
 	o3.Message = "zz" + model.NewId() + "b"
 	o3.CreateAt = createTime
-	o3 = (<-ss.Post().Save(o3)).Data.(*model.Post)
+	_ = (<-ss.Post().Save(o3)).Data.(*model.Post)
 
 	r1 := (<-ss.Post().GetPostsCreatedAt(o1.ChannelId, createTime)).Data.([]*model.Post)
 	assert.Equal(t, 2, len(r1))

store/storetest/scheme_store.go

@@ -20,6 +20,7 @@ func TestSchemeStore(t *testing.T, ss store.Store) {
 	t.Run("GetAllPage", func(t *testing.T) { testSchemeStoreGetAllPage(t, ss) })
 	t.Run("Delete", func(t *testing.T) { testSchemeStoreDelete(t, ss) })
 	t.Run("PermanentDeleteAll", func(t *testing.T) { testSchemeStorePermanentDeleteAll(t, ss) })
+	t.Run("GetByName", func(t *testing.T) { testSchemeStoreGetByName(t, ss) })
 }
 
 func createDefaultRoles(t *testing.T, ss store.Store) {

store/storetest/team_store.go

@@ -1088,9 +1088,9 @@ func testGetTeamsByScheme(t *testing.T, ss store.Store) {
 		Type:        model.TEAM_OPEN,
 	}
 
-	t1 = (<-ss.Team().Save(t1)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t1)).Data.(*model.Team)
-	t2 = (<-ss.Team().Save(t2)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t2)).Data.(*model.Team)
-	t3 = (<-ss.Team().Save(t3)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t3)).Data.(*model.Team)
 
 	// Get the teams by a valid Scheme ID.
 	res1 := <-ss.Team().GetTeamsByScheme(s1.Id, 0, 100)
@@ -1286,7 +1286,7 @@ func testTeamStoreAnalyticsGetTeamCountForScheme(t *testing.T, ss store.Store) {
 		Type:        model.TEAM_OPEN,
 		SchemeId:    &s1.Id,
 	}
-	t1 = (<-ss.Team().Save(t1)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t1)).Data.(*model.Team)
 
 	count2 := (<-ss.Team().AnalyticsGetTeamCountForScheme(s1.Id)).Data.(int64)
 	assert.Equal(t, int64(1), count2)
@@ -1298,7 +1298,7 @@ func testTeamStoreAnalyticsGetTeamCountForScheme(t *testing.T, ss store.Store) {
 		Type:        model.TEAM_OPEN,
 		SchemeId:    &s1.Id,
 	}
-	t2 = (<-ss.Team().Save(t2)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t2)).Data.(*model.Team)
 
 	count3 := (<-ss.Team().AnalyticsGetTeamCountForScheme(s1.Id)).Data.(int64)
 	assert.Equal(t, int64(2), count3)
@@ -1309,7 +1309,7 @@ func testTeamStoreAnalyticsGetTeamCountForScheme(t *testing.T, ss store.Store) {
 		Email:       MakeEmail(),
 		Type:        model.TEAM_OPEN,
 	}
-	t3 = (<-ss.Team().Save(t3)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t3)).Data.(*model.Team)
 
 	count4 := (<-ss.Team().AnalyticsGetTeamCountForScheme(s1.Id)).Data.(int64)
 	assert.Equal(t, int64(2), count4)
@@ -1322,7 +1322,7 @@ func testTeamStoreAnalyticsGetTeamCountForScheme(t *testing.T, ss store.Store) {
 		SchemeId:    &s1.Id,
 		DeleteAt:    model.GetMillis(),
 	}
-	t4 = (<-ss.Team().Save(t4)).Data.(*model.Team)
+	_ = (<-ss.Team().Save(t4)).Data.(*model.Team)
 
 	count5 := (<-ss.Team().AnalyticsGetTeamCountForScheme(s1.Id)).Data.(int64)
 	assert.Equal(t, int64(2), count5)

store/storetest/webhook_store.go

@@ -484,7 +484,7 @@ func testWebhookStoreCountIncoming(t *testing.T, ss store.Store) {
 	o1.UserId = model.NewId()
 	o1.TeamId = model.NewId()
 
-	o1 = (<-ss.Webhook().SaveIncoming(o1)).Data.(*model.IncomingWebhook)
+	_ = (<-ss.Webhook().SaveIncoming(o1)).Data.(*model.IncomingWebhook)
 
 	if r := <-ss.Webhook().AnalyticsIncomingCount(""); r.Err != nil {
 		t.Fatal(r.Err)
@@ -502,7 +502,7 @@ func testWebhookStoreCountOutgoing(t *testing.T, ss store.Store) {
 	o1.TeamId = model.NewId()
 	o1.CallbackURLs = []string{"http://nowhere.com/"}
 
-	o1 = (<-ss.Webhook().SaveOutgoing(o1)).Data.(*model.OutgoingWebhook)
+	_ = (<-ss.Webhook().SaveOutgoing(o1)).Data.(*model.OutgoingWebhook)
 
 	if r := <-ss.Webhook().AnalyticsOutgoingCount(""); r.Err != nil {
 		t.Fatal(r.Err)

utils/config.go

@@ -51,9 +51,7 @@ func FindPath(path string, baseSearchPaths []string, filter func(os.FileInfo) bo
 	}
 
 	searchPaths := []string{}
-	for _, baseSearchPath := range baseSearchPaths {
+	searchPaths = append(searchPaths, baseSearchPaths...)
-		searchPaths = append(searchPaths, baseSearchPath)
-	}
 
 	// Additionally attempt to search relative to the location of the running binary.
 	var binaryDir string

utils/i18n.go

@@ -27,12 +27,7 @@ func TranslationsPreInit() error {
 	// segfault trying to handle the error, and the untranslated IDs are strictly better.
 	T = TfuncWithFallback("en")
 	TDefault = TfuncWithFallback("en")
-
+	return InitTranslationsWithDir("i18n")
-	if err := InitTranslationsWithDir("i18n"); err != nil {
-		return err
-	}
-
-	return nil
 }
 
 func InitTranslations(localizationSettings model.LocalizationSettings) error {

utils/jsonutils/json_test.go

@@ -76,8 +76,6 @@ func TestHumanizeJsonError(t *testing.T) {
 func TestNewHumanizedJsonError(t *testing.T) {
 	t.Parallel()
 
-	type testType struct{}
-
 	testCases := []struct {
 		Description string
 		Data        []byte

utils/mail.go

@@ -257,7 +257,6 @@ func SendMail(c *smtp.Client, mimeTo, smtpTo string, from mail.Address, subject,
 	m.SetBody("text/plain", txtBody)
 	m.AddAlternative("text/html", htmlMessage)
 
-	if attachments != nil {
 	for _, fileInfo := range attachments {
 		bytes, err := fileBackend.ReadFile(fileInfo.Path)
 		if err != nil {
@@ -271,7 +270,6 @@ func SendMail(c *smtp.Client, mimeTo, smtpTo string, from mail.Address, subject,
 			return nil
 		}))
 	}
-	}
 
 	if err := c.Mail(from.Address); err != nil {
 		return model.NewAppError("SendMail", "utils.mail.send_mail.from_address.app_error", nil, err.Error(), http.StatusInternalServerError)