zuul-sphinx/zuul_sphinx/zuul.py
Ian Wienand a5136b73ad Warn when autoroles doesn't find a README.rst
This modifies autoroles to raise a warning when it finds a role
without a README.rst file.  This can be disabled with a config option
if you wish to build with warning-as-error but don't wish to document
roles.

Fix a typo in the readme for the zuul_role_paths

Add a test for the autoroles path detection by including a roles
directory under a subdir.  Manually removing the README.rst file has
validated that the warning is triggered.

Change-Id: Ia64298e6e910d21eb6f3830dd8b42e40e3444fa8
2018-08-24 14:09:22 +10:00

636 lines
21 KiB
Python

# Copyright 2017 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from collections import OrderedDict
import codecs
import os
from sphinx import addnodes
from docutils.parsers.rst import Directive
from sphinx.domains import Domain, ObjType
from sphinx.errors import SphinxError
from sphinx.roles import XRefRole
from sphinx.directives import ObjectDescription
from sphinx.util import logging
from sphinx.util.nodes import make_refnode
from docutils import nodes
import yaml
logger = logging.getLogger(__name__)
class ZuulSafeLoader(yaml.SafeLoader):
def __init__(self, *args, **kwargs):
super(ZuulSafeLoader, self).__init__(*args, **kwargs)
self.add_multi_constructor('!encrypted/', self.construct_encrypted)
@classmethod
def construct_encrypted(cls, loader, tag_suffix, node):
return loader.construct_sequence(node)
class ProjectTemplate(object):
def __init__(self, conf):
self.name = conf['name']
self.description = conf.get('description', '')
self.pipelines = OrderedDict()
self.parse(conf)
def parse(self, conf):
for k in sorted(conf.keys()):
v = conf[k]
if not isinstance(v, dict):
continue
if 'jobs' not in v:
continue
jobs = []
for job in v['jobs']:
if isinstance(job, dict):
job = list(job.keys())[0]
jobs.append(job)
if jobs:
self.pipelines[k] = jobs
class Layout(object):
def __init__(self):
self.jobs = []
self.project_templates = []
class ZuulDirective(Directive):
has_content = True
def find_zuul_yaml(self):
root = self.state.document.settings.env.relfn2path('.')[1]
while root:
for fn in ['zuul.yaml', '.zuul.yaml', 'zuul.d', '.zuul.d']:
path = os.path.join(root, fn)
if os.path.exists(path):
return path
root = os.path.split(root)[0]
raise SphinxError(
"Unable to find zuul config in zuul.yaml, .zuul.yaml,"
" zuul.d or .zuul.d")
def parse_zuul_yaml(self, path):
with open(path) as f:
data = yaml.load(f, Loader=ZuulSafeLoader)
layout = Layout()
for obj in data:
if 'job' in obj:
layout.jobs.append(obj['job'])
if 'project-template' in obj:
layout.project_templates.append(
ProjectTemplate(obj['project-template']))
return layout
def parse_zuul_d(self, path):
layout = Layout()
for conf in os.listdir(path):
with open(os.path.join(path, conf)) as f:
data = yaml.load(f, Loader=ZuulSafeLoader)
for obj in data:
if 'job' in obj:
layout.jobs.append(obj['job'])
if 'project-template' in obj:
layout.project_templates.append(
ProjectTemplate(obj['project-template']))
return layout
def _parse_zuul_layout(self):
env = self.state.document.settings.env
if not env.domaindata['zuul']['layout']:
path = self.find_zuul_yaml()
if path.endswith('zuul.d'):
layout = self.parse_zuul_d(path)
else:
layout = self.parse_zuul_yaml(path)
env.domaindata['zuul']['layout_path'] = path
env.domaindata['zuul']['layout'] = layout
@property
def zuul_layout(self):
self._parse_zuul_layout()
env = self.state.document.settings.env
return env.domaindata['zuul']['layout']
@property
def zuul_layout_path(self):
self._parse_zuul_layout()
env = self.state.document.settings.env
return env.domaindata['zuul']['layout_path']
def generate_zuul_job_content(self, name):
lines = []
for job in self.zuul_layout.jobs:
if job['name'] == name:
lines.append('.. zuul:job:: %s' % name)
if 'branches' in job:
branches = job['branches']
if not isinstance(branches, list):
branches = [branches]
variant = ', '.join(branches)
lines.append(' :variant: %s' % variant)
lines.append('')
for l in job.get('description', '').split('\n'):
lines.append(' ' + l)
lines.append('')
return lines
def generate_zuul_project_template_content(self, name):
lines = []
for template in self.zuul_layout.project_templates:
if template.name == name:
lines.append('.. zuul:project_template:: %s' % name)
lines.append('')
for l in template.description.split('\n'):
lines.append(' ' + l)
for pipeline, jobs in template.pipelines.items():
lines.append('')
lines.append(' **'+pipeline+'**')
for job in jobs:
lines.append(' * :zuul:xjob:`' + job + '`')
lines.append('')
return lines
def find_zuul_roles(self):
env = self.state.document.settings.env
_root = os.path.dirname(self.zuul_layout_path)
root_roledir = os.path.join(_root, 'roles')
role_dirs = []
if os.path.isdir(root_roledir):
role_dirs = [root_roledir,]
if env.config.zuul_role_paths:
role_dirs.extend(env.config.zuul_role_paths)
roles = env.domaindata['zuul']['role_paths']
for d in role_dirs:
for p in os.listdir(d):
role_readme = os.path.join(d, p, 'README.rst')
if os.path.exists(role_readme):
roles[p] = role_readme
else:
msg = "Missing role documentation: %s" % role_readme
if env.config.zuul_autoroles_warn_missing:
logger.warning(msg)
else:
logger.debug(msg)
@property
def zuul_role_paths(self):
env = self.state.document.settings.env
roles = env.domaindata['zuul']['role_paths']
if roles is None:
roles = {}
env.domaindata['zuul']['role_paths'] = roles
self.find_zuul_roles()
return roles
def generate_zuul_role_content(self, name):
lines = []
lines.append('.. zuul:role:: %s' % name)
lines.append('')
role_readme = self.zuul_role_paths[name]
with codecs.open(role_readme, encoding='utf-8') as f:
role_lines = f.read().split('\n')
for l in role_lines:
lines.append(' ' + l)
return lines
class ZuulObjectDescription(ZuulDirective, ObjectDescription):
object_names = {
'attr': 'attribute',
'var': 'variable',
'jobvar': 'job variable',
'rolevar': 'role variable',
}
def get_path(self):
return self.env.ref_context.get('zuul:attr_path', [])
def get_display_path(self):
return self.env.ref_context.get('zuul:display_attr_path', [])
@property
def parent_pathname(self):
return '.'.join(self.get_display_path())
@property
def full_pathname(self):
name = self.names[-1].lower()
return '.'.join(self.get_path() + [name])
def add_target_and_index(self, name, sig, signode):
targetname = self.objtype + '-' + self.full_pathname
if targetname not in self.state.document.ids:
signode['names'].append(targetname)
signode['ids'].append(targetname)
signode['first'] = (not self.names)
self.state.document.note_explicit_target(signode)
objects = self.env.domaindata['zuul']['objects']
if targetname in objects:
self.state_machine.reporter.warning(
'duplicate object description of %s, ' % targetname +
'other instance in ' +
self.env.doc2path(objects[targetname][0]) +
', use :noindex: for one of them',
line=self.lineno)
objects[targetname] = (self.env.docname, self.objtype)
objname = self.object_names.get(self.objtype, self.objtype)
if self.parent_pathname:
indextext = '%s (%s of %s)' % (name, objname,
self.parent_pathname)
else:
indextext = '%s (%s)' % (name, objname)
self.indexnode['entries'].append(('single', indextext,
targetname, '', None))
######################################################################
#
# Object description directives
#
class ZuulJobDirective(ZuulObjectDescription):
option_spec = {
'variant': lambda x: x,
}
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
element = self.names[-1]
path.append(element)
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
signode += addnodes.desc_name(sig, sig)
return sig
class ZuulProjectTemplateDirective(ZuulObjectDescription):
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
element = self.names[-1]
path.append(element)
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
signode += addnodes.desc_name(sig, sig)
return sig
class ZuulRoleDirective(ZuulObjectDescription):
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
element = self.names[-1]
path.append(element)
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
signode += addnodes.desc_name(sig, sig)
return sig
class ZuulAttrDirective(ZuulObjectDescription):
has_content = True
option_spec = {
'required': lambda x: x,
'default': lambda x: x,
'noindex': lambda x: x,
}
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
path.append(self.names[-1])
path = self.env.ref_context.setdefault('zuul:display_attr_path', [])
path.append(self.names[-1])
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
path = self.env.ref_context.get('zuul:display_attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
path = self.get_display_path()
signode['is_multiline'] = True
line = addnodes.desc_signature_line()
line['add_permalink'] = True
for x in path:
line += addnodes.desc_addname(x + '.', x + '.')
line += addnodes.desc_name(sig, sig)
if 'required' in self.options:
line += addnodes.desc_annotation(' (required)', ' (required)')
signode += line
if 'default' in self.options:
line = addnodes.desc_signature_line()
line += addnodes.desc_type('Default: ', 'Default: ')
line += nodes.literal(self.options['default'],
self.options['default'])
signode += line
return sig
class ZuulValueDirective(ZuulObjectDescription):
has_content = True
def handle_signature(self, sig, signode):
signode += addnodes.desc_name(sig, sig)
return sig
class ZuulVarDirective(ZuulObjectDescription):
has_content = True
option_spec = {
'type': lambda x: x,
'default': lambda x: x,
'hidden': lambda x: x,
'noindex': lambda x: x,
}
type_map = {
'list': '[]',
'dict': '{}',
}
def get_type_str(self):
if 'type' in self.options:
return self.type_map[self.options['type']]
return ''
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
element = self.names[-1]
path.append(element)
path = self.env.ref_context.setdefault('zuul:display_attr_path', [])
element = self.names[-1] + self.get_type_str()
path.append(element)
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
path = self.env.ref_context.get('zuul:display_attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
if 'hidden' in self.options:
return sig
path = self.get_display_path()
signode['is_multiline'] = True
line = addnodes.desc_signature_line()
line['add_permalink'] = True
for x in path:
line += addnodes.desc_addname(x + '.', x + '.')
line += addnodes.desc_name(sig, sig)
if 'required' in self.options:
line += addnodes.desc_annotation(' (required)', ' (required)')
signode += line
if 'default' in self.options:
line = addnodes.desc_signature_line()
line += addnodes.desc_type('Default: ', 'Default: ')
line += nodes.literal(self.options['default'],
self.options['default'])
signode += line
return sig
class ZuulJobVarDirective(ZuulVarDirective):
pass
class ZuulRoleVarDirective(ZuulVarDirective):
pass
class ZuulStatDirective(ZuulObjectDescription):
has_content = True
option_spec = {
'type': lambda x: x,
'hidden': lambda x: x,
'noindex': lambda x: x,
}
def before_content(self):
path = self.env.ref_context.setdefault('zuul:attr_path', [])
element = self.names[-1]
path.append(element)
path = self.env.ref_context.setdefault('zuul:display_attr_path', [])
element = self.names[-1]
path.append(element)
def after_content(self):
path = self.env.ref_context.get('zuul:attr_path')
if path:
path.pop()
path = self.env.ref_context.get('zuul:display_attr_path')
if path:
path.pop()
def handle_signature(self, sig, signode):
if 'hidden' in self.options:
return sig
path = self.get_display_path()
for x in path:
signode += addnodes.desc_addname(x + '.', x + '.')
signode += addnodes.desc_name(sig, sig)
if 'type' in self.options:
t = ' (%s)' % self.options['type']
signode += addnodes.desc_annotation(t, t)
return sig
######################################################################
#
# Autodoc directives
#
class ZuulAutoJobDirective(ZuulDirective):
def run(self):
name = self.content[0]
lines = self.generate_zuul_job_content(name)
self.state_machine.insert_input(lines, self.zuul_layout_path)
return []
class ZuulAutoJobsDirective(ZuulDirective):
has_content = False
def run(self):
lines = []
names = set()
for job in self.zuul_layout.jobs:
name = job['name']
if name in names:
continue
lines.extend(self.generate_zuul_job_content(name))
names.add(name)
self.state_machine.insert_input(lines, self.zuul_layout_path)
return []
class ZuulAutoProjectTemplateDirective(ZuulDirective):
def run(self):
name = self.content[0]
lines = self.generate_zuul_project_template_content(name)
self.state_machine.insert_input(lines, self.zuul_layout_path)
return []
class ZuulAutoProjectTemplatesDirective(ZuulDirective):
has_content = False
def run(self):
lines = []
names = set()
for template in self.zuul_layout.project_templates:
name = template.name
if name in names:
continue
lines.extend(self.generate_zuul_project_template_content(name))
names.add(name)
self.state_machine.insert_input(lines, self.zuul_layout_path)
return []
class ZuulAutoRoleDirective(ZuulDirective):
def run(self):
name = self.content[0]
lines = self.generate_zuul_role_content(name)
self.state_machine.insert_input(lines, self.zuul_role_paths[name])
return []
class ZuulAutoRolesDirective(ZuulDirective):
has_content = False
def run(self):
role_names = reversed(sorted(self.zuul_role_paths.keys()))
for name in role_names:
lines = self.generate_zuul_role_content(name)
self.state_machine.insert_input(lines, self.zuul_role_paths[name])
return []
class ZuulAbbreviatedXRefRole(XRefRole):
def process_link(self, env, refnode, has_explicit_title, title,
target):
title, target = super(ZuulAbbreviatedXRefRole, self).process_link(
env, refnode, has_explicit_title, title, target)
if not has_explicit_title:
title = title.split('.')[-1]
return title, target
class ZuulDomain(Domain):
name = 'zuul'
label = 'Zuul'
directives = {
# Object description directives
'job': ZuulJobDirective,
'project_template': ZuulProjectTemplateDirective,
'role': ZuulRoleDirective,
'attr': ZuulAttrDirective,
'value': ZuulValueDirective,
'var': ZuulVarDirective,
'stat': ZuulStatDirective,
'jobvar': ZuulJobVarDirective,
'rolevar': ZuulRoleVarDirective,
# Autodoc directives
'autojob': ZuulAutoJobDirective,
'autojobs': ZuulAutoJobsDirective,
'autoproject_template': ZuulAutoProjectTemplateDirective,
'autoproject_templates': ZuulAutoProjectTemplatesDirective,
'autorole': ZuulAutoRoleDirective,
'autoroles': ZuulAutoRolesDirective,
}
roles = {
'job': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'xjob': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=False),
'project_template':
XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'role': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'attr': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'value': ZuulAbbreviatedXRefRole(
innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'var': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'stat': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'jobvar': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
'rolevar': XRefRole(innernodeclass=nodes.inline, # type: ignore
warn_dangling=True),
}
initial_data = {
'layout': None,
'layout_path': None,
'role_paths': None,
'objects': {},
} # type: Dict[str, Dict]
def resolve_xref(self, env, fromdocname, builder, type, target,
node, contnode):
objects = self.data['objects']
if type == 'xjob':
type = 'job'
name = type + '-' + target
obj = objects.get(name)
if obj:
return make_refnode(builder, fromdocname, obj[0], name,
contnode, name)
def clear_doc(self, docname):
for fullname, (fn, _l) in list(self.data['objects'].items()):
if fn == docname:
del self.data['objects'][fullname]
def setup(app):
app.add_config_value('zuul_role_paths', [], 'html')
app.add_config_value('zuul_autoroles_warn_missing', True, '')
app.add_domain(ZuulDomain)