Add setting to set default and global disabled repository units. (#8788)

* Add possibility to global disable repo units.

* Add Default Repo Unit app.ini setting.

* Hide units

* Hide disabled repo units

* Minor fixes

* Indicate disabled units in team settings.

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>

models/repo_unit.go

@@ -170,5 +170,16 @@ func (r *RepoUnit) ExternalTrackerConfig() *ExternalTrackerConfig {
 }
 
 func getUnitsByRepoID(e Engine, repoID int64) (units []*RepoUnit, err error) {
-	return units, e.Where("repo_id = ?", repoID).Find(&units)
+	var tmpUnits []*RepoUnit
+	if err := e.Where("repo_id = ?", repoID).Find(&tmpUnits); err != nil {
+		return nil, err
+	}
+
+	for _, u := range tmpUnits {
+		if !u.Type.UnitGlobalDisabled() {
+			units = append(units, u)
+		}
+	}
+
+	return units, nil
 }