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#!/bin/sh

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# -*- coding: utf-8 -*-

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# This file is part of Beremiz, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2017: Andrey Skvortsov

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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exit_code=0

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set_exit_error()

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{

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    if [ $exit_code -eq 0 ]; then

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       exit_code=1

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    fi

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}

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compile_checks()

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{

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    echo "Syntax checking..."

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    py_files=$(find . -name '*.py')

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    # remove compiled Python files

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    find . -name '*.pyc' -exec rm -f {} \;

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    for i in $py_files; do

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        # echo $i

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        python -m py_compile $i

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        if [ $? -ne 0 ]; then

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            echo "Syntax error in $i"

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            set_exit_error

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        fi

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    done

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}

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# pep8 was renamed to pycodestyle

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# detect existed version

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pep8_detect()

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{

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    test -n $pep8 && (which pep8 > /dev/null) && pep8="pep8"

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    test -n $pep8 && (which pycodestyle > /dev/null) && pep8="pycodestyle"

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    if [ -z $pep8 ]; then

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        echo "pep8/pycodestyle is not found"

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        set_exit_error

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    fi

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}

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pep8_checks_default()

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{

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    echo "Check basic code-style problems for PEP-8"

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    test -n $pep8 && pep8_detect

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    test -z $pep8 && return

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    user_ignore=

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    # user_ignore=$user_ignore,E265  # E265 block comment should start with '# '

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    user_ignore=$user_ignore,E501  # E501 line too long (80 > 79 characters)

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    # ignored by default,

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    default_ignore=

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    default_ignore=$default_ignore,E121  # E121 continuation line under-indented for hanging indent

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    default_ignore=$default_ignore,E123  # E123 closing bracket does not match indentation of opening bracket’s line

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    default_ignore=$default_ignore,E126  # E126 continuation line over-indented for hanging indent

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    default_ignore=$default_ignore,E133  # E133 closing bracket is missing indentation

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    default_ignore=$default_ignore,E226  # E226 missing whitespace around arithmetic operator

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    default_ignore=$default_ignore,E241  # E241 multiple spaces after ':'

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    default_ignore=$default_ignore,E242  # E242 tab after ‘,’

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    default_ignore=$default_ignore,E704  # E704 multiple statements on one line (def)

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    default_ignore=$default_ignore,W503  # W503 line break occurred before a binary operator

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    ignore=$user_ignore,$default_ignore

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    # $pep8 --ignore $ignore --exclude build ./

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    $pep8 --max-line-length 300 --exclude build ./

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    if [ $? -ne 0 ]; then

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        set_exit_error

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    fi

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}

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pep8_checks_selected()

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{

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    echo "Check basic code-style problems for PEP-8 (selective)"

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    test -n $pep8 && pep8_detect

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    test -z $pep8 && return

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    # select checks:

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    user_select=

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    user_select=$user_select,W291   # W291 trailing whitespace

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    user_select=$user_select,E401   # E401 multiple imports on one line

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    user_select=$user_select,E265   # E265 block comment should start with '# '

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    user_select=$user_select,E228   # E228 missing whitespace around modulo operator

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    user_select=$user_select,W293   # W293 blank line contains whitespace

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    user_select=$user_select,E302   # E302 expected 2 blank lines, found 1

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    user_select=$user_select,E261   # E261 at least two spaces before inline comment

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    user_select=$user_select,E271   # E271 multiple spaces after keyword

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    user_select=$user_select,E231   # E231 missing whitespace after ','

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    user_select=$user_select,E303   # E303 too many blank lines (2)

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    user_select=$user_select,E225   # E225 missing whitespace around operator

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    user_select=$user_select,E711   # E711 comparison to None should be 'if cond is not None:'

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    user_select=$user_select,E251   # E251 unexpected spaces around keyword / parameter equals

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    user_select=$user_select,E227   # E227 missing whitespace around bitwise or shift operator

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    user_select=$user_select,E202   # E202 whitespace before ')'

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    user_select=$user_select,E201   # E201 whitespace after '{'

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    user_select=$user_select,W391   # W391 blank line at end of file

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    user_select=$user_select,E305   # E305 expected 2 blank lines after class or function definition, found X

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    user_select=$user_select,E306   # E306 expected 1 blank line before a nested definition, found X

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    user_select=$user_select,E703   # E703 statement ends with a semicolon

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    user_select=$user_select,E701   # E701 multiple statements on one line (colon)

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    user_select=$user_select,E221   # E221 multiple spaces before operator

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    user_select=$user_select,E741   # E741 ambiguous variable name 'l'

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    user_select=$user_select,E111   # E111 indentation is not a multiple of four

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    user_select=$user_select,E222   # E222 multiple spaces after operator

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    user_select=$user_select,E712   # E712 comparison to True should be 'if cond is True:' or 'if cond:'

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    user_select=$user_select,E262   # E262 inline comment should start with '# '

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    user_select=$user_select,E203   # E203 whitespace before ','

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    user_select=$user_select,E731   # E731 do not assign a lambda expression, use a def

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    user_select=$user_select,W601   # W601 .has_key() is deprecated, use 'in'

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    user_select=$user_select,E502   # E502 the backslash is redundant between brackets

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    user_select=$user_select,W602   # W602 deprecated form of raising exception

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    user_select=$user_select,E129   # E129 visually indented line with same indent as next logical line

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    user_select=$user_select,E127   # E127 continuation line over-indented for visual indent

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    user_select=$user_select,E128   # E128 continuation line under-indented for visual indent

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    user_select=$user_select,E125   # E125 continuation line with same indent as next logical line

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    user_select=$user_select,E114   # E114 indentation is not a multiple of four (comment)

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    user_select=$user_select,E211   # E211 whitespace before '['

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    user_select=$user_select,W191   # W191 indentation contains tabs

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    user_select=$user_select,E101   # E101 indentation contains mixed spaces and tabs

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    user_select=$user_select,E124   # E124 closing bracket does not match visual indentation

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    user_select=$user_select,E272   # E272 multiple spaces before keyword

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    user_select=$user_select,E713   # E713 test for membership should be 'not in'

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    user_select=$user_select,E122   # E122 continuation line missing indentation or outdented

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    user_select=$user_select,E131   # E131 continuation line unaligned for hanging indent

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    user_select=$user_select,E721   # E721 do not compare types, use 'isinstance()'

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    user_select=$user_select,E115   # E115 expected an indented block (comment)

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    user_select=$user_select,E722   # E722 do not use bare except'

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    user_select=$user_select,E266   # E266 too many leading '#' for block comment

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    user_select=$user_select,E402   # E402 module level import not at top of file

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    user_select=$user_select,W503   # W503 line break before binary operator

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    $pep8 --select $user_select --exclude=build .

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    if [ $? -ne 0 ]; then

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        set_exit_error

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    fi

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}

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flake8_checks()

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{

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    echo "Check for problems using flake8 ..."

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    which flake8 > /dev/null

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    if [ $? -ne 0 ]; then

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        echo "flake8 is not found"

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        set_exit_error

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        return

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    fi

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    flake8 --max-line-length=300  --exclude=build --builtins="_" ./

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    if [ $? -ne 0 ]; then

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        set_exit_error

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    fi

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}

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pylint_checks()

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{

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    echo "Check for problems using pylint ..."

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    which pylint > /dev/null

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    if [ $? -ne 0 ]; then

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        echo "pylint is not found"

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        set_exit_error

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        return

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    fi

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    export PYTHONPATH="$PWD/../CanFestival-3/objdictgen":$PYTHONPATH

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    disable=

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    # These warnings most likely will not be fixed

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    disable=$disable,C0103        # invalid-name

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    disable=$disable,C0326        # bad whitespace

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    disable=$disable,W0110        # (deprecated-lambda) map/filter on lambda could be replaced by comprehension

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    disable=$disable,W1401        # (anomalous-backslash-in-string) Anomalous backslash in string: '\.'. String constant might be missing an r prefix.

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    disable=$disable,W0613        # (unused-argument) Unused argument 'X'

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    disable=$disable,W0622        # (redefined-builtin) Redefining built-in

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    disable=$disable,W0621        # (redefined-outer-name) Redefining name 'Y' from outer scope (line X)    

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    disable=$disable,W0122        # (exec-used) Use of exec

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    disable=$disable,W0123        # (eval-used) Use of eval

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    # It'd be nice to fix warnings below some day

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    disable=$disable,C0111        # missing-docstring

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    disable=$disable,W0703        # broad-except

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    disable=$disable,C0301        # Line too long

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    disable=$disable,C0302        # Too many lines in module

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    disable=$disable,W0511        # fixme    

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    enable=

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    enable=$enable,E1601          # print statement used

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    enable=$enable,C0325          # (superfluous-parens) Unnecessary parens after keyword    

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    enable=$enable,W0404          # reimported module    

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    enable=$enable,C0411          # (wrong-import-order) standard import "import x" comes before "import y"

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    enable=$enable,W0108          # (unnecessary-lambda) Lambda may not be necessary

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    enable=$enable,C0412          # (ungrouped-imports) Imports from package X are not grouped

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    enable=$enable,C0321          # (multiple-statements) More than one statement on a single line

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    enable=$enable,W0231          # (super-init-not-called) __init__ method from base class is not called

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    enable=$enable,W0105          # (pointless-string-statement) String statement has no effect    

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    enable=$enable,W0311          # (bad-indentation) Bad indentation. Found 16 spaces, expected 12

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    enable=$enable,W0101          # (unreachable) Unreachable code

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    enable=$enable,E0102          # (function-redefined) method already defined

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    enable=$enable,W0602          # (global-variable-not-assigned) Using global for 'X' but no assignment is done

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    enable=$enable,W0612          # (unused-variable) Unused variable 'X'

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    enable=$enable,W0611          # (unused-import) Unused import X

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    enable=$enable,C1001          # (old-style-class) Old-style class defined. Problem with PyJS

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    enable=$enable,W0102          # (dangerous-default-value) Dangerous default value {} as argument

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    enable=$enable,W0403          # (relative-import) Relative import 'Y', should be 'X.Y'

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    enable=$enable,C0112          # (empty-docstring)

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    enable=$enable,W0631          # (undefined-loop-variable) Using possibly undefined loop variable 'X'

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    enable=$enable,W0104          # (pointless-statement) Statement seems to have no effect

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    enable=$enable,W0107          # (unnecessary-pass) Unnecessary pass statement

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    enable=$enable,W0406          # (import-self) Module import itself

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    enable=$enable,C0413          # (wrong-import-position) Import "import X" should be placed at the top of the module

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    enable=$enable,E1305          # (too-many-format-args) Too many arguments for format string

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    enable=$enable,E0704          # (misplaced-bare-raise) The raise statement is not inside an except clause

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    enable=$enable,C0123          # (unidiomatic-typecheck) Using type() instead of isinstance() for a typecheck.

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    enable=$enable,E0601          # (used-before-assignment)

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    # enable=

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    options=

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    options="$options --rcfile=.pylint"

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    # options="$options --py3k"   # report errors for Python 3 porting

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    if [ -n "$enable" ]; then

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        options="$options --disable=all"

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        options="$options --enable=$enable"

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    else

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        options="$options --disable=$disable"

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    fi

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    # echo $options

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    find ./ -name '*.py' | grep -v '/build/' | xargs pylint $options 

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    if [ $? -ne 0 ]; then

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        set_exit_error

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    fi

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}

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main()

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{

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    compile_checks

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    pep8_checks_default

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    # pep8_checks_selected

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    # flake8_checks

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    pylint_checks

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    exit $exit_code

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}

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main