%import re
%def repository_identification(%%repository)

%set %%repository_re = re.compile(r'^((deb)|(deb-src)) (\[ .* \] )?(((http)|(https)|(ftp)|(ftps))://(?P<url>\S+)) (?P<suite>(\S+))(?P<components>(( \S+)+)?)')
%set %%elements = %%repository_re.match(%%repository).groupdict()
%return 'o={},a={},c={}'.format(%%elements['url'].split('/')[0], %%elements['suite'], %%elements['components'].strip())
  %return %%repository
%end def

%set %%repositories_detail = {}
%for %%additional_repository in %%getVar('additional_repository_name')
%silent %%repositories_detail[%%str(%%additional_repository)] = {'source': %%additional_repository.additional_repository_source, 'priority': 500, 'exceptions': []}
%end for
%for %%priority_settings in %%getVar('additional_repository_priority_target')
 %if %%str(%%priority_settings) in %%repositories_detail
%silent %%repositories_detail[%%str(%%priority_settings)]['priority'] = %%priority_settings.additional_repository_global_priority
  %if %%priority_settings.additional_repository_exempted_packages
%silent %%repositories_detail[%%str(%%priority_settings)]['exceptions'] = %%str.split(%%priority_settings.additional_repository_exempted_packages)
  %end if
 %end if
%end for

%for %%repository in %%repositories_detail
Package: *
Pin: release %%repository_identification(%%repositories_detail[%%repository]['source'])
Pin-Priority: %%repositories_detail[%%repository]['priority']
 %for %%exception in %%repositories_detail[%%repository]['exceptions']
Package: %%exception
Pin: release %%repository_identification(%%repositories_detail[%%repository]['source'])
Pin-Priority: 500
 %end for
%end for