diff options
Diffstat (limited to 'test/lint/lint-python.py')
| -rwxr-xr-x | test/lint/lint-python.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/test/lint/lint-python.py b/test/lint/lint-python.py new file mode 100755 index 0000000000..4d16facfea --- /dev/null +++ b/test/lint/lint-python.py @@ -0,0 +1,131 @@ +#!/usr/bin/env python3 +# +# Copyright (c) 2022 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. + +""" +Check for specified flake8 and mypy warnings in python files. +""" + +import os +import pkg_resources +import subprocess +import sys + +DEPS = ['flake8', 'mypy', 'pyzmq'] +MYPY_CACHE_DIR = f"{os.getenv('BASE_ROOT_DIR', '')}/test/.mypy_cache" +FILES_ARGS = ['git', 'ls-files', 'test/functional/*.py', 'contrib/devtools/*.py'] + +ENABLED = ( + 'E101,' # indentation contains mixed spaces and tabs + 'E112,' # expected an indented block + 'E113,' # unexpected indentation + 'E115,' # expected an indented block (comment) + 'E116,' # unexpected indentation (comment) + 'E125,' # continuation line with same indent as next logical line + 'E129,' # visually indented line with same indent as next logical line + 'E131,' # continuation line unaligned for hanging indent + 'E133,' # closing bracket is missing indentation + 'E223,' # tab before operator + 'E224,' # tab after operator + 'E242,' # tab after ',' + 'E266,' # too many leading '#' for block comment + 'E271,' # multiple spaces after keyword + 'E272,' # multiple spaces before keyword + 'E273,' # tab after keyword + 'E274,' # tab before keyword + 'E275,' # missing whitespace after keyword + 'E304,' # blank lines found after function decorator + 'E306,' # expected 1 blank line before a nested definition + 'E401,' # multiple imports on one line + 'E402,' # module level import not at top of file + 'E502,' # the backslash is redundant between brackets + 'E701,' # multiple statements on one line (colon) + 'E702,' # multiple statements on one line (semicolon) + 'E703,' # statement ends with a semicolon + 'E711,' # comparison to None should be 'if cond is None:' + 'E714,' # test for object identity should be "is not" + 'E721,' # do not compare types, use "isinstance()" + 'E742,' # do not define classes named "l", "O", or "I" + 'E743,' # do not define functions named "l", "O", or "I" + 'E901,' # SyntaxError: invalid syntax + 'E902,' # TokenError: EOF in multi-line string + 'F401,' # module imported but unused + 'F402,' # import module from line N shadowed by loop variable + 'F403,' # 'from foo_module import *' used; unable to detect undefined names + 'F404,' # future import(s) name after other statements + 'F405,' # foo_function may be undefined, or defined from star imports: bar_module + 'F406,' # "from module import *" only allowed at module level + 'F407,' # an undefined __future__ feature name was imported + 'F601,' # dictionary key name repeated with different values + 'F602,' # dictionary key variable name repeated with different values + 'F621,' # too many expressions in an assignment with star-unpacking + 'F622,' # two or more starred expressions in an assignment (a, *b, *c = d) + 'F631,' # assertion test is a tuple, which are always True + 'F632,' # use ==/!= to compare str, bytes, and int literals + 'F701,' # a break statement outside of a while or for loop + 'F702,' # a continue statement outside of a while or for loop + 'F703,' # a continue statement in a finally block in a loop + 'F704,' # a yield or yield from statement outside of a function + 'F705,' # a return statement with arguments inside a generator + 'F706,' # a return statement outside of a function/method + 'F707,' # an except: block as not the last exception handler + 'F811,' # redefinition of unused name from line N + 'F812,' # list comprehension redefines 'foo' from line N + 'F821,' # undefined name 'Foo' + 'F822,' # undefined name name in __all__ + 'F823,' # local variable name … referenced before assignment + 'F831,' # duplicate argument name in function definition + 'F841,' # local variable 'foo' is assigned to but never used + 'W191,' # indentation contains tabs + 'W291,' # trailing whitespace + 'W292,' # no newline at end of file + 'W293,' # blank line contains whitespace + 'W601,' # .has_key() is deprecated, use "in" + 'W602,' # deprecated form of raising exception + 'W603,' # "<>" is deprecated, use "!=" + 'W604,' # backticks are deprecated, use "repr()" + 'W605,' # invalid escape sequence "x" + 'W606,' # 'async' and 'await' are reserved keywords starting with Python 3.7 +) + + +def check_dependencies(): + working_set = {pkg.key for pkg in pkg_resources.working_set} + + for dep in DEPS: + if dep not in working_set: + print(f"Skipping Python linting since {dep} is not installed.") + exit(0) + + +def main(): + check_dependencies() + + if len(sys.argv) > 1: + flake8_files = sys.argv[1:] + else: + files_args = ['git', 'ls-files', '*.py'] + flake8_files = subprocess.check_output(files_args).decode("utf-8").splitlines() + + flake8_args = ['flake8', '--ignore=B,C,E,F,I,N,W', f'--select={ENABLED}'] + flake8_files + flake8_env = os.environ.copy() + flake8_env["PYTHONWARNINGS"] = "ignore" + + try: + subprocess.check_call(flake8_args, env=flake8_env) + except subprocess.CalledProcessError: + exit(1) + + mypy_files = subprocess.check_output(FILES_ARGS).decode("utf-8").splitlines() + mypy_args = ['mypy', '--show-error-codes'] + mypy_files + + try: + subprocess.check_call(mypy_args) + except subprocess.CalledProcessError: + exit(1) + + +if __name__ == "__main__": + main() |