dash/test/lint/lint-python.sh
MarcoFalke 60b3c5a64e
Merge #15257: Scripts and tools: Bump flake8 to 3.7.8
3d0a82cff8cbb809876e82dbe62d14d2adc07d94 devtools: Accomodate block-style copyright blocks (Ben Woosley)
0ef0e51fe4bb592e67255776b5a0ba04679fb8c4 lint: Bump flake8 to 3.7.8 (Ben Woosley)
838920704ad90a71cf288b700052503db8abb17e lint: Disable flake8 W504 warning (Ben Woosley)
b21680baf5391a602b295b9d7d0ef66553661cb9 test/contrib: Fix invalid escapes in regex strings (Ben Woosley)

Pull request description:

  This is a second go at #15221, fixing new lints in:
  W504 line break after binary operator
  W605 invalid escape sequence
  F841 local variable 'e' is assigned to but never used

  This time around:
  * One commit per rule, for easier review
  * I went with the PEP-8 style of breaking before binary operators
  * I looked into the raw regex newline issue, and found that raw strings with newlines embedded do work appropriately. E.g. run `re.match(r" \n ", " \n ")` to check this for yourself. `re.MULTILINE` exists to modify `^` and `$` in multiline scenarios, but  all of these searches are per-line.

ACKs for top commit:
  practicalswift:
    ACK 3d0a82cff8cbb809876e82dbe62d14d2adc07d94 -- diff looks correct

Tree-SHA512: bea0c144cadd72e4adf2e9a4b4ee0535dd91a8e694206924cf8a389dc9253f364a717edfe9abda88108fbb67fda19b9e823f46822d7303c0aaa72e48909a6105
2021-10-05 20:34:01 +03:00

93 lines
4.3 KiB
Bash
Executable File

#!/usr/bin/env bash
#
# Copyright (c) 2017 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 warnings in python files.
export LC_ALL=C
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()"
# E741 # do not use variables named "l", "O", or "I"
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
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
)
if ! command -v flake8 > /dev/null; then
echo "Skipping Python linting since flake8 is not installed."
exit 0
elif PYTHONWARNINGS="ignore" flake8 --version | grep -q "Python 2"; then
echo "Skipping Python linting since flake8 is running under Python 2. Install the Python 3 version of flake8."
exit 0
fi
PYTHONWARNINGS="ignore" git ls-files "*.py" | xargs flake8 --ignore=B,C,E,F,I,N,W --select=$(IFS=","; echo "${enabled[*]}")