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ansible/test/lib/ansible_test/_util/controller/sanity/pylint/plugins/deprecated.py

430 lines
18 KiB
Python

"""Ansible specific plyint plugin for checking deprecations."""
# (c) 2018, Matt Martz <matt@sivel.net>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
# -*- coding: utf-8 -*-
from __future__ import annotations
import datetime
import functools
import json
import re
import shlex
import typing as t
from tokenize import COMMENT, TokenInfo
import astroid
# support pylint 2.x and 3.x -- remove when supporting only 3.x
try:
from pylint.interfaces import IAstroidChecker, ITokenChecker
except ImportError:
class IAstroidChecker:
"""Backwards compatibility for 2.x / 3.x support."""
class ITokenChecker:
"""Backwards compatibility for 2.x / 3.x support."""
try:
from pylint.checkers.utils import check_messages
except ImportError:
from pylint.checkers.utils import only_required_for_messages as check_messages
from pylint.checkers import BaseChecker, BaseTokenChecker
from ansible.module_utils.compat.version import LooseVersion
from ansible.release import __version__ as ansible_version_raw
from ansible.utils.version import SemanticVersion
MSGS = {
'E9501': ("Deprecated version (%r) found in call to Display.deprecated "
"or AnsibleModule.deprecate",
"ansible-deprecated-version",
"Used when a call to Display.deprecated specifies a version "
"less than or equal to the current version of Ansible",
{'minversion': (2, 6)}),
'E9502': ("Display.deprecated call without a version or date",
"ansible-deprecated-no-version",
"Used when a call to Display.deprecated does not specify a "
"version or date",
{'minversion': (2, 6)}),
'E9503': ("Invalid deprecated version (%r) found in call to "
"Display.deprecated or AnsibleModule.deprecate",
"ansible-invalid-deprecated-version",
"Used when a call to Display.deprecated specifies an invalid "
"Ansible version number",
{'minversion': (2, 6)}),
'E9504': ("Deprecated version (%r) found in call to Display.deprecated "
"or AnsibleModule.deprecate",
"collection-deprecated-version",
"Used when a call to Display.deprecated specifies a collection "
"version less than or equal to the current version of this "
"collection",
{'minversion': (2, 6)}),
'E9505': ("Invalid deprecated version (%r) found in call to "
"Display.deprecated or AnsibleModule.deprecate",
"collection-invalid-deprecated-version",
"Used when a call to Display.deprecated specifies an invalid "
"collection version number",
{'minversion': (2, 6)}),
'E9506': ("No collection name found in call to Display.deprecated or "
"AnsibleModule.deprecate",
"ansible-deprecated-no-collection-name",
"The current collection name in format `namespace.name` must "
"be provided as collection_name when calling Display.deprecated "
"or AnsibleModule.deprecate (`ansible.builtin` for ansible-core)",
{'minversion': (2, 6)}),
'E9507': ("Wrong collection name (%r) found in call to "
"Display.deprecated or AnsibleModule.deprecate",
"wrong-collection-deprecated",
"The name of the current collection must be passed to the "
"Display.deprecated resp. AnsibleModule.deprecate calls "
"(`ansible.builtin` for ansible-core)",
{'minversion': (2, 6)}),
'E9508': ("Expired date (%r) found in call to Display.deprecated "
"or AnsibleModule.deprecate",
"ansible-deprecated-date",
"Used when a call to Display.deprecated specifies a date "
"before today",
{'minversion': (2, 6)}),
'E9509': ("Invalid deprecated date (%r) found in call to "
"Display.deprecated or AnsibleModule.deprecate",
"ansible-invalid-deprecated-date",
"Used when a call to Display.deprecated specifies an invalid "
"date. It must be a string in format `YYYY-MM-DD` (ISO 8601)",
{'minversion': (2, 6)}),
'E9510': ("Both version and date found in call to "
"Display.deprecated or AnsibleModule.deprecate",
"ansible-deprecated-both-version-and-date",
"Only one of version and date must be specified",
{'minversion': (2, 6)}),
'E9511': ("Removal version (%r) must be a major release, not a minor or "
"patch release (see the specification at https://semver.org/)",
"removal-version-must-be-major",
"Used when a call to Display.deprecated or "
"AnsibleModule.deprecate for a collection specifies a version "
"which is not of the form x.0.0",
{'minversion': (2, 6)}),
}
ANSIBLE_VERSION = LooseVersion('.'.join(ansible_version_raw.split('.')[:3]))
def _get_expr_name(node):
"""Function to get either ``attrname`` or ``name`` from ``node.func.expr``
Created specifically for the case of ``display.deprecated`` or ``self._display.deprecated``
"""
try:
return node.func.expr.attrname
except AttributeError:
# If this fails too, we'll let it raise, the caller should catch it
return node.func.expr.name
def _get_func_name(node):
"""Function to get either ``attrname`` or ``name`` from ``node.func``
Created specifically for the case of ``from ansible.module_utils.common.warnings import deprecate``
"""
try:
return node.func.attrname
except AttributeError:
return node.func.name
def parse_isodate(value):
"""Parse an ISO 8601 date string."""
msg = 'Expected ISO 8601 date string (YYYY-MM-DD)'
if not isinstance(value, str):
raise ValueError(msg)
# From Python 3.7 in, there is datetime.date.fromisoformat(). For older versions,
# we have to do things manually.
if not re.match('^[0-9]{4}-[0-9]{2}-[0-9]{2}$', value):
raise ValueError(msg)
try:
return datetime.datetime.strptime(value, '%Y-%m-%d').date()
except ValueError:
raise ValueError(msg) from None
class AnsibleDeprecatedChecker(BaseChecker):
"""Checks for Display.deprecated calls to ensure that the ``version``
has not passed or met the time for removal
"""
__implements__ = (IAstroidChecker,)
name = 'deprecated'
msgs = MSGS
options = (
('collection-name', {
'default': None,
'type': 'string',
'metavar': '<name>',
'help': 'The collection\'s name used to check collection names in deprecations.',
}),
('collection-version', {
'default': None,
'type': 'string',
'metavar': '<version>',
'help': 'The collection\'s version number used to check deprecations.',
}),
)
def _check_date(self, node, date):
if not isinstance(date, str):
self.add_message('ansible-invalid-deprecated-date', node=node, args=(date,))
return
try:
date_parsed = parse_isodate(date)
except ValueError:
self.add_message('ansible-invalid-deprecated-date', node=node, args=(date,))
return
if date_parsed < datetime.date.today():
self.add_message('ansible-deprecated-date', node=node, args=(date,))
def _check_version(self, node, version, collection_name):
if collection_name is None:
collection_name = 'ansible.builtin'
if not isinstance(version, (str, float)):
if collection_name == 'ansible.builtin':
symbol = 'ansible-invalid-deprecated-version'
else:
symbol = 'collection-invalid-deprecated-version'
self.add_message(symbol, node=node, args=(version,))
return
version_no = str(version)
if collection_name == 'ansible.builtin':
# Ansible-base
try:
if not version_no:
raise ValueError('Version string should not be empty')
loose_version = LooseVersion(str(version_no))
if ANSIBLE_VERSION >= loose_version:
self.add_message('ansible-deprecated-version', node=node, args=(version,))
except ValueError:
self.add_message('ansible-invalid-deprecated-version', node=node, args=(version,))
elif collection_name:
# Collections
try:
if not version_no:
raise ValueError('Version string should not be empty')
semantic_version = SemanticVersion(version_no)
if collection_name == self.collection_name and self.collection_version is not None:
if self.collection_version >= semantic_version:
self.add_message('collection-deprecated-version', node=node, args=(version,))
if semantic_version.major != 0 and (semantic_version.minor != 0 or semantic_version.patch != 0):
self.add_message('removal-version-must-be-major', node=node, args=(version,))
except ValueError:
self.add_message('collection-invalid-deprecated-version', node=node, args=(version,))
@property
def collection_name(self) -> t.Optional[str]:
"""Return the collection name, or None if ansible-core is being tested."""
return self.linter.config.collection_name
@property
def collection_version(self) -> t.Optional[SemanticVersion]:
"""Return the collection version, or None if ansible-core is being tested."""
if self.linter.config.collection_version is None:
return None
sem_ver = SemanticVersion(self.linter.config.collection_version)
# Ignore pre-release for version comparison to catch issues before the final release is cut.
sem_ver.prerelease = ()
return sem_ver
@check_messages(*(MSGS.keys()))
def visit_call(self, node):
"""Visit a call node."""
version = None
date = None
collection_name = None
try:
funcname = _get_func_name(node)
if (funcname == 'deprecated' and 'display' in _get_expr_name(node) or
funcname == 'deprecate'):
if node.keywords:
for keyword in node.keywords:
if len(node.keywords) == 1 and keyword.arg is None:
# This is likely a **kwargs splat
return
if keyword.arg == 'version':
if isinstance(keyword.value.value, astroid.Name):
# This is likely a variable
return
version = keyword.value.value
if keyword.arg == 'date':
if isinstance(keyword.value.value, astroid.Name):
# This is likely a variable
return
date = keyword.value.value
if keyword.arg == 'collection_name':
if isinstance(keyword.value.value, astroid.Name):
# This is likely a variable
return
collection_name = keyword.value.value
if not version and not date:
try:
version = node.args[1].value
except IndexError:
self.add_message('ansible-deprecated-no-version', node=node)
return
if version and date:
self.add_message('ansible-deprecated-both-version-and-date', node=node)
if collection_name:
this_collection = collection_name == (self.collection_name or 'ansible.builtin')
if not this_collection:
self.add_message('wrong-collection-deprecated', node=node, args=(collection_name,))
elif self.collection_name is not None:
self.add_message('ansible-deprecated-no-collection-name', node=node)
if date:
self._check_date(node, date)
elif version:
self._check_version(node, version, collection_name)
except AttributeError:
# Not the type of node we are interested in
pass
class AnsibleDeprecatedCommentChecker(BaseTokenChecker):
"""Checks for ``# deprecated:`` comments to ensure that the ``version``
has not passed or met the time for removal
"""
__implements__ = (ITokenChecker,)
name = 'deprecated-comment'
msgs = {
'E9601': ("Deprecated core version (%r) found: %s",
"ansible-deprecated-version-comment",
"Used when a '# deprecated:' comment specifies a version "
"less than or equal to the current version of Ansible",
{'minversion': (2, 6)}),
'E9602': ("Deprecated comment contains invalid keys %r",
"ansible-deprecated-version-comment-invalid-key",
"Used when a '#deprecated:' comment specifies invalid data",
{'minversion': (2, 6)}),
'E9603': ("Deprecated comment missing version",
"ansible-deprecated-version-comment-missing-version",
"Used when a '#deprecated:' comment specifies invalid data",
{'minversion': (2, 6)}),
'E9604': ("Deprecated python version (%r) found: %s",
"ansible-deprecated-python-version-comment",
"Used when a '#deprecated:' comment specifies a python version "
"less than or equal to the minimum python version",
{'minversion': (2, 6)}),
'E9605': ("Deprecated comment contains invalid version %r: %s",
"ansible-deprecated-version-comment-invalid-version",
"Used when a '#deprecated:' comment specifies an invalid version",
{'minversion': (2, 6)}),
}
options = (
('min-python-version-db', {
'default': None,
'type': 'string',
'metavar': '<path>',
'help': 'The path to the DB mapping paths to minimum Python versions.',
}),
)
def process_tokens(self, tokens: list[TokenInfo]) -> None:
for token in tokens:
if token.type == COMMENT:
self._process_comment(token)
def _deprecated_string_to_dict(self, token: TokenInfo, string: str) -> dict[str, str]:
valid_keys = {'description', 'core_version', 'python_version'}
data = dict.fromkeys(valid_keys)
for opt in shlex.split(string):
if '=' not in opt:
data[opt] = None
continue
key, _sep, value = opt.partition('=')
data[key] = value
if not any((data['core_version'], data['python_version'])):
self.add_message(
'ansible-deprecated-version-comment-missing-version',
line=token.start[0],
col_offset=token.start[1],
)
bad = set(data).difference(valid_keys)
if bad:
self.add_message(
'ansible-deprecated-version-comment-invalid-key',
line=token.start[0],
col_offset=token.start[1],
args=(','.join(bad),)
)
return data
@functools.cached_property
def _min_python_version_db(self) -> dict[str, str]:
"""A dictionary of absolute file paths and their minimum required Python version."""
with open(self.linter.config.min_python_version_db) as db_file:
return json.load(db_file)
def _process_python_version(self, token: TokenInfo, data: dict[str, str]) -> None:
current_file = self.linter.current_file
check_version = self._min_python_version_db[current_file]
try:
if LooseVersion(data['python_version']) < LooseVersion(check_version):
self.add_message(
'ansible-deprecated-python-version-comment',
line=token.start[0],
col_offset=token.start[1],
args=(
data['python_version'],
data['description'] or 'description not provided',
),
)
except (ValueError, TypeError) as exc:
self.add_message(
'ansible-deprecated-version-comment-invalid-version',
line=token.start[0],
col_offset=token.start[1],
args=(data['python_version'], exc)
)
def _process_core_version(self, token: TokenInfo, data: dict[str, str]) -> None:
try:
if ANSIBLE_VERSION >= LooseVersion(data['core_version']):
self.add_message(
'ansible-deprecated-version-comment',
line=token.start[0],
col_offset=token.start[1],
args=(
data['core_version'],
data['description'] or 'description not provided',
)
)
except (ValueError, TypeError) as exc:
self.add_message(
'ansible-deprecated-version-comment-invalid-version',
line=token.start[0],
col_offset=token.start[1],
args=(data['core_version'], exc)
)
def _process_comment(self, token: TokenInfo) -> None:
if token.string.startswith('# deprecated:'):
data = self._deprecated_string_to_dict(token, token.string[13:].strip())
if data['core_version']:
self._process_core_version(token, data)
if data['python_version']:
self._process_python_version(token, data)
def register(linter):
"""required method to auto register this checker """
linter.register_checker(AnsibleDeprecatedChecker(linter))
linter.register_checker(AnsibleDeprecatedCommentChecker(linter))