Adding the new search engine abstraction (#13304)

* WIP

* Adding bleve to go modules

* WIP

* Adding missing files from searchengine implementation

* WIP

* WIP

* WIP

* WIP

* WIP

* WIP

* User and channel indexing and searches implemented

* Make bleve tests run with in-memory indexes

* Implement post index and deletion tests

* Initial commits for the search layer

* Removing unnecesary indexing

* WIP

* WIP

* More fixes for tests

* Adding the search layer

* Finishing the migration of searchers to the layer

* Removing unnecesary code

* Allowing multiple engines active at the same time

* WIP

* Add simple post search

* Print information when using bleve

* Adding some debugging to understand better how the searches are working

* Making more dynamic config of search engines

* Add post search basics

* Adding the Purge API endpoint

* Fixing bleve config updates

* Adding missed file

* Regenerating search engine mocks

* Adding missed v5 to modules imports

* fixing i18n

* Fixing some test around search engine

* Removing all bleve traces

* Cleaning up the vendors directory and go.mod/go.sum files

* Regenerating timer layer

* Adding properly the license

* Fixing govet shadow error

* Fixing some tests

* Fixing TestSearchPostsFromUser

* Fixing another test

* Fixing more tests

* Fixing more tests

* Removing SearchEngine redundant text from searchengine module code

* Fixing some reindexing problems in members updates

* Fixing tests

* Addressing PR comments

* Reverting go.mod and go.sum

* Addressing PR comments

* Fixing tests compilation

* Fixing govet

* Adding search engine stop method

* Being more explicit on where we use includeDeleted

* Adding GetSqlSupplier test helper method

* Mocking elasticsearch start function

* Fixing tests

Co-authored-by: Miguel de la Cruz <miguel@mcrx.me>
Co-authored-by: mattermod <mattermod@users.noreply.github.com>

app/user_test.go

@@ -942,90 +942,6 @@ func TestGetViewUsersRestrictions(t *testing.T) {
 	})
 }
 
-func TestGetViewUsersRestrictionsForTeam(t *testing.T) {
-	th := Setup(t).InitBasic()
-	defer th.TearDown()
-
-	team1 := th.CreateTeam()
-	team2 := th.CreateTeam()
-	th.CreateTeam() // Another team
-
-	user1 := th.CreateUser()
-
-	th.LinkUserToTeam(user1, team1)
-	th.LinkUserToTeam(user1, team2)
-
-	th.App.UpdateTeamMemberRoles(team1.Id, user1.Id, "team_user team_admin")
-
-	team1channel1 := th.CreateChannel(team1)
-	team1channel2 := th.CreateChannel(team1)
-	th.CreateChannel(team1) // Another channel
-	team1offtopic, err := th.App.GetChannelByName("off-topic", team1.Id, false)
-	require.Nil(t, err)
-	team1townsquare, err := th.App.GetChannelByName("town-square", team1.Id, false)
-	require.Nil(t, err)
-
-	team2channel1 := th.CreateChannel(team2)
-	th.CreateChannel(team2) // Another channel
-
-	th.App.AddUserToChannel(user1, team1channel1)
-	th.App.AddUserToChannel(user1, team1channel2)
-	th.App.AddUserToChannel(user1, team2channel1)
-
-	addPermission := func(role *model.Role, permission string) *model.AppError {
-		newPermissions := append(role.Permissions, permission)
-		_, err := th.App.PatchRole(role, &model.RolePatch{Permissions: &newPermissions})
-		return err
-	}
-
-	removePermission := func(role *model.Role, permission string) *model.AppError {
-		newPermissions := []string{}
-		for _, oldPermission := range role.Permissions {
-			if permission != oldPermission {
-				newPermissions = append(newPermissions, oldPermission)
-			}
-		}
-		_, err := th.App.PatchRole(role, &model.RolePatch{Permissions: &newPermissions})
-		return err
-	}
-
-	t.Run("VIEW_MEMBERS permission granted at system level", func(t *testing.T) {
-		restrictions, err := th.App.GetViewUsersRestrictionsForTeam(user1.Id, team1.Id)
-		require.Nil(t, err)
-
-		assert.Nil(t, restrictions)
-	})
-
-	t.Run("VIEW_MEMBERS permission granted at team level", func(t *testing.T) {
-		systemUserRole, err := th.App.GetRoleByName(model.SYSTEM_USER_ROLE_ID)
-		require.Nil(t, err)
-		teamUserRole, err := th.App.GetRoleByName(model.TEAM_USER_ROLE_ID)
-		require.Nil(t, err)
-
-		require.Nil(t, removePermission(systemUserRole, model.PERMISSION_VIEW_MEMBERS.Id))
-		defer addPermission(systemUserRole, model.PERMISSION_VIEW_MEMBERS.Id)
-		require.Nil(t, addPermission(teamUserRole, model.PERMISSION_VIEW_MEMBERS.Id))
-		defer removePermission(teamUserRole, model.PERMISSION_VIEW_MEMBERS.Id)
-
-		restrictions, err := th.App.GetViewUsersRestrictionsForTeam(user1.Id, team1.Id)
-		require.Nil(t, err)
-		assert.Nil(t, restrictions)
-	})
-
-	t.Run("VIEW_MEMBERS permission not granted at any level", func(t *testing.T) {
-		systemUserRole, err := th.App.GetRoleByName(model.SYSTEM_USER_ROLE_ID)
-		require.Nil(t, err)
-		require.Nil(t, removePermission(systemUserRole, model.PERMISSION_VIEW_MEMBERS.Id))
-		defer addPermission(systemUserRole, model.PERMISSION_VIEW_MEMBERS.Id)
-
-		restrictions, err := th.App.GetViewUsersRestrictionsForTeam(user1.Id, team1.Id)
-		require.Nil(t, err)
-
-		assert.NotNil(t, restrictions)
-		assert.ElementsMatch(t, []string{team1townsquare.Id, team1offtopic.Id, team1channel1.Id, team1channel2.Id}, restrictions)
-	})
-}
-
 func TestPromoteGuestToUser(t *testing.T) {
 	th := Setup(t).InitBasic()
 	defer th.TearDown()