579 lines
21 KiB
Python
579 lines
21 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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This provides a sphinx extension able to render from an ini file (from the
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doc/source/* directory) a feature matrix into the developer documentation.
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It is used via a single directive in the .rst file
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.. feature_matrix:: feature_classification.ini
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"""
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import configparser
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import re
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import sys
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from docutils import nodes
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from docutils.parsers import rst
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class Matrix(object):
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"""Matrix represents the entire feature matrix parsed from an ini file
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This includes:
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* self.features is a list of MatrixFeature instances, the rows and cells
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* self.targets is a dict of (MatrixTarget.key, MatrixTarget), the columns
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"""
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def __init__(self):
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self.features = []
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self.targets = {}
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class MatrixTarget(object):
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def __init__(self, key, title, driver, hypervisor=None, architecture=None,
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link=None):
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"""MatrixTarget modes a target, a column in the matrix
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This is usually a specific CI system, or collection of related
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deployment configurations.
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:param key: Unique identifier for the hypervisor driver
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:param title: Human friendly name of the hypervisor
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:param driver: Name of the Nova driver
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:param hypervisor: (optional) Name of the hypervisor, if many
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:param architecture: (optional) Name of the architecture, if many
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:param link: (optional) URL to docs about this target
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"""
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self.key = key
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self.title = title
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self.driver = driver
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self.hypervisor = hypervisor
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self.architecture = architecture
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self.link = link
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class MatrixImplementation(object):
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STATUS_COMPLETE = "complete"
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STATUS_PARTIAL = "partial"
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STATUS_MISSING = "missing"
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STATUS_UKNOWN = "unknown"
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STATUS_ALL = [STATUS_COMPLETE, STATUS_PARTIAL, STATUS_MISSING,
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STATUS_UKNOWN]
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def __init__(self, status=STATUS_MISSING, notes=None, release=None):
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"""MatrixImplementation models a cell in the matrix
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This models the current state of a target for a specific feature
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:param status: One off complete, partial, missing, unknown.
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See the RST docs for a definition of those.
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:param notes: Arbitrary string describing any caveats of the
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implementation. Mandatory if status is 'partial'.
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:param release: Letter of the release entry was last updated.
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i.e. m=mitaka, c=cactus. If not known it is None.
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"""
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self.status = status
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self.notes = notes
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self.release = release
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class MatrixFeature(object):
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MATURITY_INCOMPLETE = "incomplete"
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MATURITY_EXPERIMENTAL = "experimental"
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MATURITY_COMPLETE = "complete"
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MATURITY_DEPRECATED = "deprecated"
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MATURITY_ALL = [MATURITY_INCOMPLETE, MATURITY_EXPERIMENTAL,
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MATURITY_COMPLETE, MATURITY_DEPRECATED]
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def __init__(self, key, title,
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notes=None, cli=None, maturity=None,
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api_doc_link=None, admin_doc_link=None,
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tempest_test_uuids=None):
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"""MatrixFeature models a row in the matrix
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This initialises ``self.implementations``, which is a dict of
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(MatrixTarget.key, MatrixImplementation)
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This is the list of cells for the given row of the matrix.
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:param key: used as the HTML id for the details, and so in the URL
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:param title: human friendly short title, used in the matrix
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:param notes: Arbitrarily long string describing the feature
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:param cli: list of cli commands related to the feature
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:param maturity: incomplete, experimental, complete or deprecated
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for a full definition see the rst doc
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:param api_doc_link: URL to the API ref for this feature
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:param admin_doc_link: URL to the admin docs for using this feature
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:param tempest_test_uuids: uuids for tests that validate this feature
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"""
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if cli is None:
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cli = []
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if tempest_test_uuids is None:
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tempest_test_uuids = []
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self.key = key
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self.title = title
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self.notes = notes
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self.implementations = {}
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self.cli = cli
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self.maturity = maturity
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self.api_doc_link = api_doc_link
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self.admin_doc_link = admin_doc_link
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self.tempest_test_uuids = tempest_test_uuids
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class FeatureMatrixDirective(rst.Directive):
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"""The Sphinx directive plugin
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Has single required argument, the filename for the ini file.
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The usage of the directive looks like this::
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.. feature_matrix:: feature_matrix_gp.ini
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"""
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required_arguments = 1
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def run(self):
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matrix = self._load_feature_matrix()
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return self._build_markup(matrix)
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def _load_feature_matrix(self):
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"""Reads the feature-matrix.ini file and populates an instance
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of the Matrix class with all the data.
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:returns: Matrix instance
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"""
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# SafeConfigParser was deprecated in Python 3.2
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if sys.version_info >= (3, 2):
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cfg = configparser.ConfigParser()
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else:
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cfg = configparser.SafeConfigParser()
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env = self.state.document.settings.env
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filename = self.arguments[0]
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rel_fpath, fpath = env.relfn2path(filename)
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with open(fpath) as fp:
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cfg.readfp(fp)
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# This ensures that the docs are rebuilt whenever the
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# .ini file changes
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env.note_dependency(rel_fpath)
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matrix = Matrix()
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matrix.targets = self._get_targets(cfg)
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matrix.features = self._get_features(cfg, matrix.targets)
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return matrix
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def _get_targets(self, cfg):
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"""The 'targets' section is special - it lists all the
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hypervisors that this file records data for.
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"""
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targets = {}
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for section in cfg.sections():
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if not section.startswith("target."):
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continue
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key = section[7:]
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title = cfg.get(section, "title")
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link = cfg.get(section, "link")
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driver = key.split("-")[0]
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target = MatrixTarget(key, title, driver, link=link)
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targets[key] = target
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return targets
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def _get_features(self, cfg, targets):
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"""All sections except 'targets' describe some feature of
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the Nova hypervisor driver implementation.
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"""
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features = []
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for section in cfg.sections():
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if section == "targets":
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continue
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if section.startswith("target."):
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continue
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if not cfg.has_option(section, "title"):
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raise Exception(
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"'title' field missing in '[%s]' section" % section)
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title = cfg.get(section, "title")
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maturity = MatrixFeature.MATURITY_INCOMPLETE
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if cfg.has_option(section, "maturity"):
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maturity = cfg.get(section, "maturity").lower()
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if maturity not in MatrixFeature.MATURITY_ALL:
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raise Exception(
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"'maturity' field value '%s' in ['%s']"
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"section must be %s" %
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(maturity, section,
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",".join(MatrixFeature.MATURITY_ALL)))
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notes = None
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if cfg.has_option(section, "notes"):
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notes = cfg.get(section, "notes")
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cli = []
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if cfg.has_option(section, "cli"):
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cli = cfg.get(section, "cli")
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api_doc_link = None
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if cfg.has_option(section, "api_doc_link"):
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api_doc_link = cfg.get(section, "api_doc_link")
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admin_doc_link = None
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if cfg.has_option(section, "admin_doc_link"):
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admin_doc_link = cfg.get(section, "admin_doc_link")
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tempest_test_uuids = []
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if cfg.has_option(section, "tempest_test_uuids"):
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tempest_test_uuids = cfg.get(section, "tempest_test_uuids")
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feature = MatrixFeature(section, title, notes, cli, maturity,
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api_doc_link, admin_doc_link, tempest_test_uuids)
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# Now we've got the basic feature details, we must process
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# the hypervisor driver implementation for each feature
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for item in cfg.options(section):
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key = item.replace("driver-impl-", "")
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if key not in targets:
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# TODO(johngarbutt) would be better to skip known list
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if item.startswith("driver-impl-"):
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raise Exception(
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"Driver impl '%s' in '[%s]' not declared" %
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(item, section))
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continue
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impl_status_and_release = cfg.get(section, item)
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impl_status_and_release = impl_status_and_release.split(":")
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impl_status = impl_status_and_release[0]
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release = None
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if len(impl_status_and_release) == 2:
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release = impl_status_and_release[1]
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if impl_status not in MatrixImplementation.STATUS_ALL:
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raise Exception(
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"'%s' value '%s' in '[%s]' section must be %s" %
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(item, impl_status, section,
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",".join(MatrixImplementation.STATUS_ALL)))
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noteskey = "driver-notes-" + item[12:]
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notes = None
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if cfg.has_option(section, noteskey):
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notes = cfg.get(section, noteskey)
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target = targets[key]
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impl = MatrixImplementation(impl_status, notes, release)
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feature.implementations[target.key] = impl
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for key in targets:
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if key not in feature.implementations:
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raise Exception("'%s' missing in '[%s]' section" %
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(key, section))
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features.append(feature)
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return features
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def _build_markup(self, matrix):
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"""Constructs the docutils content for the feature matrix"""
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content = []
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self._build_summary(matrix, content)
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self._build_details(matrix, content)
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return content
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def _build_summary(self, matrix, content):
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"""Constructs the docutils content for the summary of
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the feature matrix.
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The summary consists of a giant table, with one row
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for each feature, and a column for each hypervisor
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driver. It provides an 'at a glance' summary of the
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status of each driver
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"""
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summarytitle = nodes.subtitle(text="Summary")
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summary = nodes.table()
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cols = len(matrix.targets.keys())
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cols += 2
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summarygroup = nodes.tgroup(cols=cols)
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summarybody = nodes.tbody()
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summaryhead = nodes.thead()
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for i in range(cols):
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summarygroup.append(nodes.colspec(colwidth=1))
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summarygroup.append(summaryhead)
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summarygroup.append(summarybody)
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summary.append(summarygroup)
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content.append(summarytitle)
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content.append(summary)
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# This sets up all the column headers - two fixed
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# columns for feature name & status
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header = nodes.row()
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blank = nodes.entry()
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blank.append(nodes.emphasis(text="Feature"))
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header.append(blank)
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blank = nodes.entry()
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blank.append(nodes.emphasis(text="Maturity"))
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header.append(blank)
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summaryhead.append(header)
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# then one column for each hypervisor driver
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impls = sorted(matrix.targets.keys())
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for key in impls:
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target = matrix.targets[key]
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implcol = nodes.entry()
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header.append(implcol)
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if target.link:
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uri = target.link
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target_ref = nodes.reference("", refuri=uri)
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target_txt = nodes.inline()
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implcol.append(target_txt)
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target_txt.append(target_ref)
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target_ref.append(nodes.strong(text=target.title))
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else:
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implcol.append(nodes.strong(text=target.title))
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# We now produce the body of the table, one row for
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# each feature to report on
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for feature in matrix.features:
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item = nodes.row()
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# the hyperlink target name linking to details
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id = re.sub("[^a-zA-Z0-9_]", "_",
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feature.key)
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# first the to fixed columns for title/status
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keycol = nodes.entry()
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item.append(keycol)
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keyref = nodes.reference(refid=id)
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keytxt = nodes.inline()
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keycol.append(keytxt)
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keytxt.append(keyref)
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keyref.append(nodes.strong(text=feature.title))
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maturitycol = nodes.entry()
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item.append(maturitycol)
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maturitycol.append(nodes.inline(
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text=feature.maturity,
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classes=["fm_maturity_" + feature.maturity]))
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# and then one column for each hypervisor driver
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impls = sorted(matrix.targets.keys())
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for key in impls:
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target = matrix.targets[key]
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impl = feature.implementations[key]
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implcol = nodes.entry()
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item.append(implcol)
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id = re.sub("[^a-zA-Z0-9_]", "_",
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feature.key + "_" + key)
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implref = nodes.reference(refid=id)
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impltxt = nodes.inline()
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implcol.append(impltxt)
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impltxt.append(implref)
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impl_status = ""
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if impl.status == MatrixImplementation.STATUS_COMPLETE:
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impl_status = u"\u2714"
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elif impl.status == MatrixImplementation.STATUS_MISSING:
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impl_status = u"\u2716"
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elif impl.status == MatrixImplementation.STATUS_PARTIAL:
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impl_status = u"\u2714"
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elif impl.status == MatrixImplementation.STATUS_UKNOWN:
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impl_status = u"?"
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implref.append(nodes.literal(
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text=impl_status,
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classes=["fm_impl_summary", "fm_impl_" + impl.status]))
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if impl.release:
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implref.append(nodes.inline(text=" %s" % impl.release))
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summarybody.append(item)
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def _build_details(self, matrix, content):
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"""Constructs the docutils content for the details of
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the feature matrix.
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This is generated as a bullet list of features.
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Against each feature we provide the description of
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the feature and then the details of the hypervisor
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impls, with any driver specific notes that exist
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"""
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detailstitle = nodes.subtitle(text="Details")
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details = nodes.bullet_list()
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content.append(detailstitle)
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content.append(details)
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# One list entry for each feature we're reporting on
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for feature in matrix.features:
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item = nodes.list_item()
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# The hypervisor target name linked from summary table
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id = re.sub("[^a-zA-Z0-9_]", "_",
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feature.key)
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# Highlight the feature title name
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item.append(nodes.strong(text=feature.title,
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ids=[id]))
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if feature.notes is not None:
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para_notes = nodes.paragraph()
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para_notes.append(nodes.inline(text=feature.notes))
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item.append(para_notes)
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self._add_feature_info(item, feature)
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if feature.cli:
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item.append(self._create_cli_paragraph(feature))
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para_divers = nodes.paragraph()
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para_divers.append(nodes.strong(text="drivers:"))
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# A sub-list giving details of each hypervisor target
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impls = nodes.bullet_list()
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for key in feature.implementations:
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target = matrix.targets[key]
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impl = feature.implementations[key]
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subitem = nodes.list_item()
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id = re.sub("[^a-zA-Z0-9_]", "_",
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feature.key + "_" + key)
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subitem += [
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nodes.strong(text=target.title + ": "),
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nodes.literal(text=impl.status,
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classes=["fm_impl_" + impl.status],
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ids=[id]),
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]
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if impl.release:
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release_letter = impl.release.upper()
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release_text = \
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' (updated in "%s" release)' % release_letter
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subitem.append(nodes.inline(text=release_text))
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if impl.notes is not None:
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subitem.append(self._create_notes_paragraph(impl.notes))
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impls.append(subitem)
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para_divers.append(impls)
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item.append(para_divers)
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details.append(item)
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def _add_feature_info(self, item, feature):
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para_info = nodes.paragraph()
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para_info.append(nodes.strong(text="info:"))
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info_list = nodes.bullet_list()
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maturity_literal = nodes.literal(text=feature.maturity,
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classes=["fm_maturity_" + feature.maturity])
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self._append_info_list_item(info_list,
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"Maturity", items=[maturity_literal])
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self._append_info_list_item(info_list,
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"API Docs", link=feature.api_doc_link)
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self._append_info_list_item(info_list,
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"Admin Docs", link=feature.admin_doc_link)
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tempest_items = []
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if feature.tempest_test_uuids:
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for uuid in feature.tempest_test_uuids.split(";"):
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base = "https://github.com/openstack/tempest/search?q=%s"
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link = base % uuid
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inline_ref = self._get_uri_ref(link, text=uuid)
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tempest_items.append(inline_ref)
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tempest_items.append(nodes.inline(text=", "))
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# removing trailing punctuation
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tempest_items = tempest_items[:-1]
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self._append_info_list_item(info_list,
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"Tempest tests", items=tempest_items)
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para_info.append(info_list)
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item.append(para_info)
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def _get_uri_ref(self, link, text=None):
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if not text:
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text = link
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ref = nodes.reference("", text, refuri=link)
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inline = nodes.inline()
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inline.append(ref)
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return inline
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def _append_info_list_item(self, info_list, title,
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text=None, link=None, items=None):
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subitem = nodes.list_item()
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subitem.append(nodes.strong(text="%s: " % title))
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if items:
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for item in items:
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subitem.append(item)
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elif link:
|
|
inline_link = self._get_uri_ref(link, text)
|
|
subitem.append(inline_link)
|
|
elif text:
|
|
subitem.append(nodes.literal(text=text))
|
|
info_list.append(subitem)
|
|
|
|
def _create_cli_paragraph(self, feature):
|
|
"""Create a paragraph which represents the CLI commands of the feature
|
|
|
|
The paragraph will have a bullet list of CLI commands.
|
|
"""
|
|
para = nodes.paragraph()
|
|
para.append(nodes.strong(text="CLI commands:"))
|
|
commands = nodes.bullet_list()
|
|
for c in feature.cli.split(";"):
|
|
cli_command = nodes.list_item()
|
|
cli_command += nodes.literal(text=c, classes=["fm_cli"])
|
|
commands.append(cli_command)
|
|
para.append(commands)
|
|
return para
|
|
|
|
def _create_notes_paragraph(self, notes):
|
|
"""Constructs a paragraph which represents the implementation notes
|
|
|
|
The paragraph consists of text and clickable URL nodes if links were
|
|
given in the notes.
|
|
"""
|
|
para = nodes.paragraph()
|
|
# links could start with http:// or https://
|
|
link_idxs = [m.start() for m in re.finditer('https?://', notes)]
|
|
start_idx = 0
|
|
for link_idx in link_idxs:
|
|
# assume the notes start with text (could be empty)
|
|
para.append(nodes.inline(text=notes[start_idx:link_idx]))
|
|
# create a URL node until the next text or the end of the notes
|
|
link_end_idx = notes.find(" ", link_idx)
|
|
if link_end_idx == -1:
|
|
# In case the notes end with a link without a blank
|
|
link_end_idx = len(notes)
|
|
uri = notes[link_idx:link_end_idx + 1]
|
|
para.append(nodes.reference("", uri, refuri=uri))
|
|
start_idx = link_end_idx + 1
|
|
|
|
# get all text after the last link (could be empty) or all of the
|
|
# text if no link was given
|
|
para.append(nodes.inline(text=notes[start_idx:]))
|
|
return para
|
|
|
|
|
|
def setup(app):
|
|
app.add_directive('feature_matrix', FeatureMatrixDirective)
|
|
app.add_stylesheet('feature-matrix.css')
|