mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
4fdeade389
- Add support for module_utils packages for better organization. - Add support for "virtual" module_utils packages such as `six`.
242 lines
8.4 KiB
Python
242 lines
8.4 KiB
Python
"""Analyze python import statements."""
|
|
|
|
from __future__ import absolute_import, print_function
|
|
|
|
import ast
|
|
import os
|
|
import uuid
|
|
|
|
from lib.util import (
|
|
display,
|
|
ApplicationError,
|
|
)
|
|
|
|
VIRTUAL_PACKAGES = set([
|
|
'ansible.module_utils.six',
|
|
])
|
|
|
|
|
|
def get_python_module_utils_imports(compile_targets):
|
|
"""Return a dictionary of module_utils names mapped to sets of python file paths.
|
|
:type compile_targets: list[TestTarget]
|
|
:rtype: dict[str, set[str]]
|
|
"""
|
|
|
|
module_utils = enumerate_module_utils()
|
|
virtual_utils = set(m for m in module_utils if any(m.startswith('%s.' % v) for v in VIRTUAL_PACKAGES))
|
|
module_utils -= virtual_utils
|
|
|
|
imports_by_target_path = {}
|
|
|
|
for target in compile_targets:
|
|
imports_by_target_path[target.path] = extract_python_module_utils_imports(target.path, module_utils)
|
|
|
|
def recurse_import(import_name, depth=0, seen=None):
|
|
"""Recursively expand module_utils imports from module_utils files.
|
|
:type import_name: str
|
|
:type depth: int
|
|
:type seen: set[str] | None
|
|
:rtype set[str]
|
|
"""
|
|
display.info('module_utils import: %s%s' % (' ' * depth, import_name), verbosity=4)
|
|
|
|
if seen is None:
|
|
seen = set([import_name])
|
|
|
|
results = set([import_name])
|
|
|
|
# virtual packages depend on the modules they contain instead of the reverse
|
|
if import_name in VIRTUAL_PACKAGES:
|
|
for sub_import in sorted(virtual_utils):
|
|
if sub_import.startswith('%s.' % import_name):
|
|
if sub_import in seen:
|
|
continue
|
|
|
|
seen.add(sub_import)
|
|
|
|
matches = sorted(recurse_import(sub_import, depth + 1, seen))
|
|
|
|
for result in matches:
|
|
results.add(result)
|
|
|
|
import_path = os.path.join('lib/', '%s.py' % import_name.replace('.', '/'))
|
|
|
|
if import_path not in imports_by_target_path:
|
|
import_path = os.path.join('lib/', import_name.replace('.', '/'), '__init__.py')
|
|
|
|
if import_path not in imports_by_target_path:
|
|
raise ApplicationError('Cannot determine path for module_utils import: %s' % import_name)
|
|
|
|
# process imports in reverse so the deepest imports come first
|
|
for name in sorted(imports_by_target_path[import_path], reverse=True):
|
|
if name in virtual_utils:
|
|
continue
|
|
|
|
if name in seen:
|
|
continue
|
|
|
|
seen.add(name)
|
|
|
|
matches = sorted(recurse_import(name, depth + 1, seen))
|
|
|
|
for result in matches:
|
|
results.add(result)
|
|
|
|
return results
|
|
|
|
for module_util in module_utils:
|
|
# recurse over module_utils imports while excluding self
|
|
module_util_imports = recurse_import(module_util)
|
|
module_util_imports.remove(module_util)
|
|
|
|
# add recursive imports to all path entries which import this module_util
|
|
for target_path in imports_by_target_path:
|
|
if module_util in imports_by_target_path[target_path]:
|
|
for module_util_import in sorted(module_util_imports):
|
|
if module_util_import not in imports_by_target_path[target_path]:
|
|
display.info('%s inherits import %s via %s' % (target_path, module_util_import, module_util), verbosity=6)
|
|
imports_by_target_path[target_path].add(module_util_import)
|
|
|
|
imports = dict([(module_util, set()) for module_util in module_utils | virtual_utils])
|
|
|
|
for target_path in imports_by_target_path:
|
|
for module_util in imports_by_target_path[target_path]:
|
|
imports[module_util].add(target_path)
|
|
|
|
# for purposes of mapping module_utils to paths, treat imports of virtual utils the same as the parent package
|
|
for virtual_util in virtual_utils:
|
|
parent_package = '.'.join(virtual_util.split('.')[:-1])
|
|
imports[virtual_util] = imports[parent_package]
|
|
display.info('%s reports imports from parent package %s' % (virtual_util, parent_package), verbosity=6)
|
|
|
|
for module_util in sorted(imports):
|
|
if not len(imports[module_util]):
|
|
display.warning('No imports found which use the "%s" module_util.' % module_util)
|
|
|
|
return imports
|
|
|
|
|
|
def enumerate_module_utils():
|
|
"""Return a list of available module_utils imports.
|
|
:rtype: set[str]
|
|
"""
|
|
module_utils = []
|
|
base_path = 'lib/ansible/module_utils'
|
|
|
|
for root, _, file_names in os.walk(base_path):
|
|
for file_name in file_names:
|
|
path = os.path.join(root, file_name)
|
|
name, ext = os.path.splitext(file_name)
|
|
|
|
if path == 'lib/ansible/module_utils/__init__.py':
|
|
continue
|
|
|
|
if ext != '.py':
|
|
continue
|
|
|
|
if name == '__init__':
|
|
module_util = root
|
|
else:
|
|
module_util = os.path.join(root, name)
|
|
|
|
module_utils.append(module_util[4:].replace('/', '.'))
|
|
|
|
return set(module_utils)
|
|
|
|
|
|
def extract_python_module_utils_imports(path, module_utils):
|
|
"""Return a list of module_utils imports found in the specified source file.
|
|
:type path: str
|
|
:type module_utils: set[str]
|
|
:rtype: set[str]
|
|
"""
|
|
with open(path, 'r') as module_fd:
|
|
code = module_fd.read()
|
|
|
|
try:
|
|
tree = ast.parse(code)
|
|
except SyntaxError as ex:
|
|
# Setting the full path to the filename results in only the filename being given for str(ex).
|
|
# As a work-around, set the filename to a UUID and replace it in the final string output with the actual path.
|
|
ex.filename = str(uuid.uuid4())
|
|
error = str(ex).replace(ex.filename, path)
|
|
raise ApplicationError('AST parse error: %s' % error)
|
|
|
|
finder = ModuleUtilFinder(path, module_utils)
|
|
finder.visit(tree)
|
|
return finder.imports
|
|
|
|
|
|
class ModuleUtilFinder(ast.NodeVisitor):
|
|
"""AST visitor to find valid module_utils imports."""
|
|
def __init__(self, path, module_utils):
|
|
"""Return a list of module_utils imports found in the specified source file.
|
|
:type path: str
|
|
:type module_utils: set[str]
|
|
"""
|
|
self.path = path
|
|
self.module_utils = module_utils
|
|
self.imports = set()
|
|
|
|
# implicitly import parent package
|
|
|
|
if path.endswith('/__init__.py'):
|
|
path = os.path.split(path)[0]
|
|
|
|
if path.startswith('lib/ansible/module_utils/'):
|
|
package = os.path.split(path)[0].replace('/', '.')[4:]
|
|
|
|
if package != 'ansible.module_utils' and package not in VIRTUAL_PACKAGES:
|
|
self.add_import(package, 0)
|
|
|
|
# noinspection PyPep8Naming
|
|
# pylint: disable=locally-disabled, invalid-name
|
|
def visit_Import(self, node):
|
|
"""
|
|
:type node: ast.Import
|
|
"""
|
|
self.generic_visit(node)
|
|
|
|
for alias in node.names:
|
|
if alias.name.startswith('ansible.module_utils.'):
|
|
# import ansible.module_utils.MODULE[.MODULE]
|
|
self.add_import(alias.name, node.lineno)
|
|
|
|
# noinspection PyPep8Naming
|
|
# pylint: disable=locally-disabled, invalid-name
|
|
def visit_ImportFrom(self, node):
|
|
"""
|
|
:type node: ast.ImportFrom
|
|
"""
|
|
self.generic_visit(node)
|
|
|
|
if not node.module:
|
|
return
|
|
|
|
if node.module == 'ansible.module_utils' or node.module.startswith('ansible.module_utils.'):
|
|
for alias in node.names:
|
|
# from ansible.module_utils import MODULE[, MODULE]
|
|
# from ansible.module_utils.MODULE[.MODULE] import MODULE[, MODULE]
|
|
self.add_import('%s.%s' % (node.module, alias.name), node.lineno)
|
|
|
|
def add_import(self, name, line_number):
|
|
"""
|
|
:type name: str
|
|
:type line_number: int
|
|
"""
|
|
import_name = name
|
|
|
|
while len(name) > len('ansible.module_utils.'):
|
|
if name in self.module_utils:
|
|
if name not in self.imports:
|
|
display.info('%s:%d imports module_utils: %s' % (self.path, line_number, name), verbosity=5)
|
|
self.imports.add(name)
|
|
|
|
return # duplicate imports are ignored
|
|
|
|
name = '.'.join(name.split('.')[:-1])
|
|
|
|
if self.path.startswith('test/'):
|
|
return # invalid imports in tests are ignored
|
|
|
|
raise ApplicationError('%s:%d Invalid module_utils import: %s' % (self.path, line_number, import_name))
|