zuul-jobs/roles/sphinx/library/sphinx_check_warning_is_error.py
Stephen Finucane a258aa9a3b Default warning-is-error to True for non-legacy Sphinx projects
We're trying to move away from the legacy pbr 'build_sphinx' command.
However, without the relevant section in the 'setup.cfg' file, we have
no way to determine if the user wishes to use the '-W'
(warning-is-error) flag when building docs. The current behavior for
this is to default to False, meaning documentation for projects that
previously used the pbr functionality to enable warning-is-error is
liable to slowly break as time passes.

To resolve this, default to True for packages with no [build_sphinx]
section in setup.cfg. This ensures that projects migrating to the new
PTI (which, when fully implemented, involves removing the [build_sphinx]
section from setup.cfg) will be forced to fix any warnings prior to the
migration. However, packages that have not been converted will not be
broken. Only pacakges that have already fully switched over to the new
PTI but which did not have warning-is-error enabled are at risk of
unexpected breakage, but even for those the short-term pain should
ultimately be outweighed by the long-term gain.

Change-Id: I677afef96370ead5a45cba854ba483f18a8d1247
2018-05-10 09:23:57 +01:00

116 lines
4.3 KiB
Python

#!/usr/bin/python
# Copyright (c) 2017 Red Hat
#
# This module is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: sphinx_check_warning_is_error
short_description: Read the warning-is-error setting from setup.cfg
author: Monty Taylor (@mordred)
description:
- When running sphinx using sphinx-build and not using python setup.py
build_sphinx there is no way to set warning-is-error in a config file.
The sphinx-build command expects the -W flag to be passed. Read the setting
from a setup.cfg file if one exists.
requirements:
- "python >= 3.5"
options:
project_dir:
description:
- The directory in which the project we care about is in.
required: true
type: str
'''
try:
import configparser
except ImportError:
import ConfigParser as configparser
import os
from ansible.module_utils.basic import AnsibleModule
# TODO(mordred) We should replace this python module with the 'ini' lookup
# module. That runs on the executor, but the executor has a readable copy of
# the setup.cfg for the project in question.
# Just a simple:
# set_fact:
# setup_cfg_path: "{{ zuul.executor.work_root }}/"\
# "{{ zuul.project.src_dir }}/setup.cfg }}"
# warning_is_error: "{{ lookup('ini', 'warning[_\_]is[_\-]error section="\
# "build_sphinx re=True file=' + setup_cfg_path }}"
# autodoc_index_modules: "{{ lookup('ini', 'autodoc[_\_]index[_\-]modules"\
# "section=build_sphinx re=True file=' + "\
# "setup_cfg_path }}"
# should do it. That's a bigger change that we should test aggressively.
def main():
module = AnsibleModule(
argument_spec=dict(
project_dir=dict(required=True, type='str'),
)
)
project_dir = module.params['project_dir']
warning_is_error = True
# TODO(mordred) Remove autodoc_index_modules logic when we get OpenStack
# projects off of the pbr autoindex
autodoc_index_modules = False
autodoc_tree_index_modules = False
if not os.path.exists(os.path.join(project_dir, 'setup.cfg')):
module.exit_json(
changed=False,
warning_is_error=warning_is_error,
autodoc_index_modules=autodoc_index_modules,
msg="No setup.cfg, no action needed")
try:
c = configparser.ConfigParser()
c.read(os.path.join(project_dir, 'setup.cfg'))
except Exception:
module.exit_json(
changed=False,
warning_is_error=warning_is_error,
autodoc_index_modules=autodoc_index_modules,
msg="Error reading setup.cfg, defaulting flags to false")
if c.has_section('build_sphinx'):
if c.has_option('build_sphinx', 'warning-is-error'):
warning_is_error = c.getboolean('build_sphinx', 'warning-is-error')
else:
warning_is_error = False
if c.has_section('pbr') and c.has_option('pbr', 'autodoc_index_modules'):
autodoc_index_modules = c.getboolean('pbr', 'autodoc_index_modules')
if (c.has_section('pbr') and
c.has_option('pbr', 'autodoc_tree_index_modules')):
autodoc_tree_index_modules = c.getboolean('pbr',
'autodoc_tree_index_modules')
# Set it if either options is set and defer to pbr to figure it out.
autodoc_index_modules = autodoc_index_modules or autodoc_tree_index_modules
module.exit_json(
changed=False,
warning_is_error=warning_is_error,
autodoc_index_modules=autodoc_index_modules,
msg="Doc building options found in setup.cfg")
if __name__ == '__main__':
main()