requirements_constraints.txt.j2

#
# Constraints set by SHA's in the git sources
#
{% set constraint_pkgs = [] %}
{% for clone_item in local_packages.results.0.item.remote_package_parts %}
{%   if 'ignorerequirements=true' not in clone_item['original'] %}
{{ clone_item['original'] | replace(clone_item['url'], 'file://' + repo_build_git_dir + '/' + clone_item['name'] ) }}
{%     set _ = constraint_pkgs.append(clone_item['name'] | replace('-', '_') | lower) %}
{%   endif %}
{% endfor %}
#
# User-provided constraints set through a variable
#
{% set override_packages = [] %}
{% for constraint_override_item in repo_build_upper_constraints_overrides %}
{%   set constraint_override_name = constraint_override_item | regex_replace('(>=|<=|>|<|==|~=|!=).*$','') %}
{%   set _ = override_packages.append(constraint_override_name) %}
{{ constraint_override_item }}
{% endfor %}
#
# Global pins set through the file global-requirement-pins.txt
#
{% set global_pin_packages = [] %}
{% for global_pin in local_packages.results.0.item.role_requirement_files.global_pins.pinned_packages %}
{%   set global_pin_package_name = global_pin | regex_replace('(<=|<|==).*$','') %}
{%   set _ = global_pin_packages.append(global_pin_package_name) %}
{#   we want to ensure that repo_build_upper_constraints_overrides take the highest precedence #}
{%   if global_pin_package_name not in repo_build_upper_constraints_overrides %}
{{ global_pin }}
{%   endif %}
{% endfor %}
{# we don't bother applying OpenStack upper-constraints if the deployer has opted not to #}
{% if repo_build_use_upper_constraints | bool %}
#
# Upper constraints from the OpenStack requirements repo
#
{%   for constraint_item in upper_constraints %}
{%     set constraint_name = constraint_item | regex_replace('===.*', '') %}
{%     set constraint_data = constraint_item | regex_replace('.*===', '') %}
{#     The name has to be normalised to comply with PEP standards #}
{%     set constraint_name_normalized = constraint_name | replace('-', '_') | lower %}
{%     set constraint = constraint_name_normalized + '<=' + constraint_data %}
{%     if (constraint_name_normalized not in constraint_pkgs) and (constraint_name_normalized not in override_packages) and (constraint_name_normalized not in global_pin_packages) %}
{{ constraint }}
{%     endif %}
{%   endfor %}
{% endif %}