Restricting access to fork functioanlity to users with Code access (#2542)

Signed-off-by: Jonas Franz <info@jonasfranz.software>

models/repo.go

@@ -648,7 +648,7 @@ func (repo *Repository) UpdateSize() error {
 
 // CanBeForked returns true if repository meets the requirements of being forked.
 func (repo *Repository) CanBeForked() bool {
-	return !repo.IsBare
+	return !repo.IsBare && repo.UnitEnabled(UnitTypeCode)
 }
 
 // CanEnablePulls returns true if repository meets the requirements of accepting pulls.