2018-12-06 14:08:18 +00:00
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#!/usr/bin/env python
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#
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2021-11-23 13:02:47 +00:00
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# SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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2018-12-06 14:08:18 +00:00
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2021-01-26 02:49:01 +00:00
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from __future__ import print_function, unicode_literals
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2020-10-30 09:28:24 +00:00
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import argparse
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2018-12-06 14:08:18 +00:00
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import os
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import re
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2020-10-30 09:28:24 +00:00
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import sys
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2018-12-06 14:08:18 +00:00
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from io import open
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2020-10-30 09:28:24 +00:00
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2021-01-26 02:49:01 +00:00
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from idf_ci_utils import IDF_PATH, get_submodule_dirs
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2018-12-06 14:08:18 +00:00
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2019-01-31 12:41:31 +00:00
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# regular expression for matching Kconfig files
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2019-05-14 14:23:19 +00:00
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RE_KCONFIG = r'^Kconfig(\.projbuild)?(\.in)?$'
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2018-12-06 14:08:18 +00:00
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# ouput file with suggestions will get this suffix
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OUTPUT_SUFFIX = '.new'
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# ignored directories (makes sense only when run on IDF_PATH)
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# Note: IGNORE_DIRS is a tuple in order to be able to use it directly with the startswith() built-in function which
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# accepts tuples but no lists.
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IGNORE_DIRS = (
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# Kconfigs from submodules need to be ignored:
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2020-10-30 09:28:24 +00:00
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os.path.join(IDF_PATH, 'components', 'mqtt', 'esp-mqtt'),
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2019-05-09 13:43:07 +00:00
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# Test Kconfigs are also ignored
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2020-10-30 09:28:24 +00:00
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os.path.join(IDF_PATH, 'tools', 'ldgen', 'test', 'data'),
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os.path.join(IDF_PATH, 'tools', 'kconfig_new', 'test'),
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2018-12-06 14:08:18 +00:00
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)
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SPACES_PER_INDENT = 4
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2019-04-24 13:02:25 +00:00
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CONFIG_NAME_MAX_LENGTH = 40
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2018-12-06 14:08:18 +00:00
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2019-04-30 10:51:55 +00:00
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CONFIG_NAME_MIN_PREFIX_LENGTH = 3
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2018-12-06 14:08:18 +00:00
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2019-01-31 13:10:14 +00:00
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# The checker will not fail if it encounters this string (it can be used for temporarily resolve conflicts)
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RE_NOERROR = re.compile(r'\s+#\s+NOERROR\s+$')
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2018-12-06 14:08:18 +00:00
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# list or rules for lines
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LINE_ERROR_RULES = [
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# (regular expression for finding, error message, correction)
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(re.compile(r'\t'), 'tabulators should be replaced by spaces', r' ' * SPACES_PER_INDENT),
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(re.compile(r'\s+\n'), 'trailing whitespaces should be removed', r'\n'),
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(re.compile(r'.{120}'), 'line should be shorter than 120 characters', None),
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]
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class InputError(RuntimeError):
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"""
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Represents and error on the input
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"""
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def __init__(self, path, line_number, error_msg, suggested_line):
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super(InputError, self).__init__('{}:{}: {}'.format(path, line_number, error_msg))
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self.suggested_line = suggested_line
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class BaseChecker(object):
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"""
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Base class for all checker objects
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"""
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def __init__(self, path_in_idf):
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self.path_in_idf = path_in_idf
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def __enter__(self):
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return self
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def __exit__(self, type, value, traceback):
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pass
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2019-06-18 15:37:07 +00:00
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class SourceChecker(BaseChecker):
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# allow to source only files which will be also checked by the script
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# Note: The rules are complex and the LineRuleChecker cannot be used
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def process_line(self, line, line_number):
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2022-05-06 03:31:24 +00:00
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m = re.search(r'^\s*[ro]{0,2}source(\s*)"([^"]+)"', line)
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2019-06-18 15:37:07 +00:00
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if m:
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if len(m.group(1)) == 0:
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raise InputError(self.path_in_idf, line_number, '"source" has to been followed by space',
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line.replace('source', 'source '))
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path = m.group(2)
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2019-08-14 00:21:53 +00:00
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filename = os.path.basename(path)
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2019-09-10 07:58:52 +00:00
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if path in ['$COMPONENT_KCONFIGS_SOURCE_FILE', '$COMPONENT_KCONFIGS_PROJBUILD_SOURCE_FILE']:
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2019-06-18 15:37:07 +00:00
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pass
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2019-08-14 00:21:53 +00:00
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elif not filename.startswith('Kconfig.'):
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2021-01-26 02:49:01 +00:00
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raise InputError(self.path_in_idf, line_number, 'only filenames starting with Kconfig.* can be sourced',
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2019-08-14 00:21:53 +00:00
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line.replace(path, os.path.join(os.path.dirname(path), 'Kconfig.' + filename)))
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2019-06-18 15:37:07 +00:00
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2018-12-06 14:08:18 +00:00
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class LineRuleChecker(BaseChecker):
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"""
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checks LINE_ERROR_RULES for each line
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"""
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def process_line(self, line, line_number):
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2019-01-31 13:10:14 +00:00
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suppress_errors = RE_NOERROR.search(line) is not None
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2018-12-06 14:08:18 +00:00
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errors = []
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for rule in LINE_ERROR_RULES:
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m = rule[0].search(line)
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if m:
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2019-01-31 13:10:14 +00:00
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if suppress_errors:
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# just print but no failure
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e = InputError(self.path_in_idf, line_number, rule[1], line)
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print(e)
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else:
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errors.append(rule[1])
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2018-12-06 14:08:18 +00:00
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if rule[2]:
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line = rule[0].sub(rule[2], line)
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if len(errors) > 0:
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2021-01-26 02:49:01 +00:00
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raise InputError(self.path_in_idf, line_number, '; '.join(errors), line)
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2018-12-06 14:08:18 +00:00
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class IndentAndNameChecker(BaseChecker):
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"""
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checks the indentation of each line and configuration names
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"""
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def __init__(self, path_in_idf, debug=False):
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super(IndentAndNameChecker, self).__init__(path_in_idf)
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self.debug = debug
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self.min_prefix_length = CONFIG_NAME_MIN_PREFIX_LENGTH
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# stack of the nested menuconfig items, e.g. ['mainmenu', 'menu', 'config']
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self.level_stack = []
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# stack common prefixes of configs
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self.prefix_stack = []
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2019-01-25 16:10:53 +00:00
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# if the line ends with '\' then we force the indent of the next line
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self.force_next_indent = 0
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2018-12-06 14:08:18 +00:00
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# menu items which increase the indentation of the next line
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self.re_increase_level = re.compile(r'''^\s*
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(
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(menu(?!config))
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|(mainmenu)
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|(choice)
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|(config)
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|(menuconfig)
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|(help)
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|(if)
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2019-06-18 15:37:07 +00:00
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|(source)
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2022-05-06 03:31:24 +00:00
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|(osource)
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|(rsource)
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|(orsource)
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2018-12-06 14:08:18 +00:00
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)
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''', re.X)
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# closing menu items which decrease the indentation
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self.re_decrease_level = re.compile(r'''^\s*
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(
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(endmenu)
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|(endchoice)
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|(endif)
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)
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''', re.X)
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# matching beginning of the closing menuitems
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self.pair_dic = {'endmenu': 'menu',
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'endchoice': 'choice',
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'endif': 'if',
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}
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# regex for config names
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self.re_name = re.compile(r'''^
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(
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(?:config)
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|(?:menuconfig)
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|(?:choice)
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)\s+
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(\w+)
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''', re.X)
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# regex for new prefix stack
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self.re_new_stack = re.compile(r'''^
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(
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(?:menu(?!config))
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|(?:mainmenu)
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|(?:choice)
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)
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''', re.X)
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def __exit__(self, type, value, traceback):
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super(IndentAndNameChecker, self).__exit__(type, value, traceback)
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if len(self.prefix_stack) > 0:
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self.check_common_prefix('', 'EOF')
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if len(self.prefix_stack) != 0:
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if self.debug:
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print(self.prefix_stack)
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raise RuntimeError("Prefix stack should be empty. Perhaps a menu/choice hasn't been closed")
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def del_from_level_stack(self, count):
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""" delete count items from the end of the level_stack """
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if count > 0:
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# del self.level_stack[-0:] would delete everything and we expect not to delete anything for count=0
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del self.level_stack[-count:]
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def update_level_for_inc_pattern(self, new_item):
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if self.debug:
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print('level+', new_item, ': ', self.level_stack, end=' -> ')
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# "config" and "menuconfig" don't have a closing pair. So if new_item is an item which need to be indented
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# outside the last "config" or "menuconfig" then we need to find to a parent where it belongs
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2022-05-06 03:31:24 +00:00
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if new_item in ['config', 'menuconfig', 'menu', 'choice', 'if', 'source', 'rsource', 'osource', 'orsource']:
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2018-12-06 14:08:18 +00:00
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# item is not belonging to a previous "config" or "menuconfig" so need to indent to parent
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for i, item in enumerate(reversed(self.level_stack)):
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if item in ['menu', 'mainmenu', 'choice', 'if']:
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# delete items ("config", "menuconfig", "help") until the appropriate parent
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self.del_from_level_stack(i)
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break
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2019-01-25 16:10:53 +00:00
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else:
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# delete everything when configs are at top level without a parent menu, mainmenu...
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self.del_from_level_stack(len(self.level_stack))
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2018-12-06 14:08:18 +00:00
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self.level_stack.append(new_item)
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if self.debug:
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print(self.level_stack)
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# The new indent is for the next line. Use the old one for the current line:
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return len(self.level_stack) - 1
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def update_level_for_dec_pattern(self, new_item):
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if self.debug:
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print('level-', new_item, ': ', self.level_stack, end=' -> ')
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target = self.pair_dic[new_item]
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for i, item in enumerate(reversed(self.level_stack)):
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# find the matching beginning for the closing item in reverse-order search
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# Note: "menuconfig", "config" and "help" don't have closing pairs and they are also on the stack. Now they
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# will be deleted together with the "menu" or "choice" we are closing.
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if item == target:
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i += 1 # delete also the matching beginning
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if self.debug:
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print('delete ', i, end=' -> ')
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self.del_from_level_stack(i)
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break
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if self.debug:
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print(self.level_stack)
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return len(self.level_stack)
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def check_name_and_update_prefix(self, line, line_number):
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m = self.re_name.search(line)
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if m:
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name = m.group(2)
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name_length = len(name)
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if name_length > CONFIG_NAME_MAX_LENGTH:
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raise InputError(self.path_in_idf, line_number,
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'{} is {} characters long and it should be {} at most'
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''.format(name, name_length, CONFIG_NAME_MAX_LENGTH),
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2019-01-25 16:10:53 +00:00
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line + '\n') # no suggested correction for this
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if len(self.prefix_stack) == 0:
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self.prefix_stack.append(name)
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elif self.prefix_stack[-1] is None:
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2018-12-06 14:08:18 +00:00
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self.prefix_stack[-1] = name
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else:
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# this has nothing common with paths but the algorithm can be used for this also
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self.prefix_stack[-1] = os.path.commonprefix([self.prefix_stack[-1], name])
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if self.debug:
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print('prefix+', self.prefix_stack)
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m = self.re_new_stack.search(line)
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if m:
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self.prefix_stack.append(None)
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if self.debug:
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print('prefix+', self.prefix_stack)
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def check_common_prefix(self, line, line_number):
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common_prefix = self.prefix_stack.pop()
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if self.debug:
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print('prefix-', self.prefix_stack)
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if common_prefix is None:
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return
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common_prefix_len = len(common_prefix)
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if common_prefix_len < self.min_prefix_length:
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raise InputError(self.path_in_idf, line_number,
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2020-10-30 09:28:24 +00:00
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'The common prefix for the config names of the menu ending at this line is "{}".\n'
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'\tAll config names in this menu should start with the same prefix of {} characters '
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2019-05-22 13:44:41 +00:00
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'or more.'.format(common_prefix, self.min_prefix_length),
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2018-12-06 14:08:18 +00:00
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line) # no suggested correction for this
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if len(self.prefix_stack) > 0:
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parent_prefix = self.prefix_stack[-1]
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if parent_prefix is None:
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# propagate to parent level where it will influence the prefix checking with the rest which might
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# follow later on that level
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self.prefix_stack[-1] = common_prefix
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else:
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if len(self.level_stack) > 0 and self.level_stack[-1] in ['mainmenu', 'menu']:
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# the prefix from menu is not required to propagate to the children
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return
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if not common_prefix.startswith(parent_prefix):
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raise InputError(self.path_in_idf, line_number,
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'Common prefix "{}" should start with {}'
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''.format(common_prefix, parent_prefix),
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line) # no suggested correction for this
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def process_line(self, line, line_number):
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stripped_line = line.strip()
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if len(stripped_line) == 0:
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self.force_next_indent = 0
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2018-12-06 14:08:18 +00:00
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return
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current_level = len(self.level_stack)
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m = re.search(r'\S', line) # indent found as the first non-space character
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if m:
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current_indent = m.start()
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else:
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current_indent = 0
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if current_level > 0 and self.level_stack[-1] == 'help':
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if current_indent >= current_level * SPACES_PER_INDENT:
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# this line belongs to 'help'
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2019-01-25 16:10:53 +00:00
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self.force_next_indent = 0
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return
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if self.force_next_indent > 0:
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if current_indent != self.force_next_indent:
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raise InputError(self.path_in_idf, line_number,
|
|
|
|
'Indentation consists of {} spaces instead of {}'.format(current_indent,
|
|
|
|
self.force_next_indent),
|
|
|
|
(' ' * self.force_next_indent) + line.lstrip())
|
|
|
|
else:
|
|
|
|
if not stripped_line.endswith('\\'):
|
|
|
|
self.force_next_indent = 0
|
2018-12-06 14:08:18 +00:00
|
|
|
return
|
|
|
|
|
2019-01-31 13:10:14 +00:00
|
|
|
elif stripped_line.endswith('\\') and stripped_line.startswith(('config', 'menuconfig', 'choice')):
|
|
|
|
raise InputError(self.path_in_idf, line_number,
|
|
|
|
'Line-wrap with backslash is not supported here',
|
|
|
|
line) # no suggestion for this
|
2019-01-25 16:10:53 +00:00
|
|
|
|
2018-12-06 14:08:18 +00:00
|
|
|
self.check_name_and_update_prefix(stripped_line, line_number)
|
|
|
|
|
|
|
|
m = self.re_increase_level.search(line)
|
|
|
|
if m:
|
|
|
|
current_level = self.update_level_for_inc_pattern(m.group(1))
|
|
|
|
else:
|
|
|
|
m = self.re_decrease_level.search(line)
|
|
|
|
if m:
|
|
|
|
new_item = m.group(1)
|
|
|
|
current_level = self.update_level_for_dec_pattern(new_item)
|
|
|
|
if new_item not in ['endif']:
|
2019-06-18 15:37:07 +00:00
|
|
|
# endif doesn't require to check the prefix because the items inside if/endif belong to the
|
2018-12-06 14:08:18 +00:00
|
|
|
# same prefix level
|
|
|
|
self.check_common_prefix(line, line_number)
|
|
|
|
|
|
|
|
expected_indent = current_level * SPACES_PER_INDENT
|
2019-01-25 16:10:53 +00:00
|
|
|
|
|
|
|
if stripped_line.endswith('\\'):
|
|
|
|
self.force_next_indent = expected_indent + SPACES_PER_INDENT
|
|
|
|
else:
|
|
|
|
self.force_next_indent = 0
|
|
|
|
|
2018-12-06 14:08:18 +00:00
|
|
|
if current_indent != expected_indent:
|
|
|
|
raise InputError(self.path_in_idf, line_number,
|
|
|
|
'Indentation consists of {} spaces instead of {}'.format(current_indent, expected_indent),
|
|
|
|
(' ' * expected_indent) + line.lstrip())
|
|
|
|
|
|
|
|
|
|
|
|
def valid_directory(path):
|
|
|
|
if not os.path.isdir(path):
|
2021-01-26 02:49:01 +00:00
|
|
|
raise argparse.ArgumentTypeError('{} is not a valid directory!'.format(path))
|
2018-12-06 14:08:18 +00:00
|
|
|
return path
|
|
|
|
|
|
|
|
|
2020-10-30 09:28:24 +00:00
|
|
|
def validate_kconfig_file(kconfig_full_path, verbose=False): # type: (str, bool) -> bool
|
|
|
|
suggestions_full_path = kconfig_full_path + OUTPUT_SUFFIX
|
|
|
|
fail = False
|
|
|
|
|
|
|
|
with open(kconfig_full_path, 'r', encoding='utf-8') as f, \
|
|
|
|
open(suggestions_full_path, 'w', encoding='utf-8', newline='\n') as f_o, \
|
|
|
|
LineRuleChecker(kconfig_full_path) as line_checker, \
|
|
|
|
SourceChecker(kconfig_full_path) as source_checker, \
|
|
|
|
IndentAndNameChecker(kconfig_full_path, debug=verbose) as indent_and_name_checker:
|
|
|
|
try:
|
|
|
|
for line_number, line in enumerate(f, start=1):
|
|
|
|
try:
|
|
|
|
for checker in [line_checker, indent_and_name_checker, source_checker]:
|
|
|
|
checker.process_line(line, line_number)
|
|
|
|
# The line is correct therefore we echo it to the output file
|
|
|
|
f_o.write(line)
|
|
|
|
except InputError as e:
|
|
|
|
print(e)
|
|
|
|
fail = True
|
|
|
|
f_o.write(e.suggested_line)
|
|
|
|
except UnicodeDecodeError:
|
2021-01-26 02:49:01 +00:00
|
|
|
raise ValueError('The encoding of {} is not Unicode.'.format(kconfig_full_path))
|
2020-10-30 09:28:24 +00:00
|
|
|
|
|
|
|
if fail:
|
|
|
|
print('\t{} has been saved with suggestions for resolving the issues.\n'
|
|
|
|
'\tPlease note that the suggestions can be wrong and '
|
|
|
|
'you might need to re-run the checker several times '
|
|
|
|
'for solving all issues'.format(suggestions_full_path))
|
|
|
|
print('\tPlease fix the errors and run {} for checking the correctness of '
|
|
|
|
'Kconfig files.'.format(os.path.abspath(__file__)))
|
|
|
|
return False
|
|
|
|
else:
|
|
|
|
print('{}: OK'.format(kconfig_full_path))
|
|
|
|
try:
|
|
|
|
os.remove(suggestions_full_path)
|
|
|
|
except Exception:
|
|
|
|
# not a serious error is when the file cannot be deleted
|
|
|
|
print('{} cannot be deleted!'.format(suggestions_full_path))
|
|
|
|
finally:
|
|
|
|
return True
|
|
|
|
|
2018-12-06 14:08:18 +00:00
|
|
|
|
2020-10-30 09:28:24 +00:00
|
|
|
def main():
|
2018-12-06 14:08:18 +00:00
|
|
|
parser = argparse.ArgumentParser(description='Kconfig style checker')
|
2020-10-30 09:28:24 +00:00
|
|
|
parser.add_argument('files', nargs='*',
|
|
|
|
help='Kconfig files')
|
|
|
|
parser.add_argument('--verbose', '-v', action='store_true',
|
|
|
|
help='Print more information (useful for debugging)')
|
|
|
|
parser.add_argument('--includes', '-d', nargs='*',
|
|
|
|
help='Extra paths for recursively searching Kconfig files. (for example $IDF_PATH)',
|
|
|
|
type=valid_directory)
|
|
|
|
parser.add_argument('--exclude-submodules', action='store_true',
|
|
|
|
help='Exclude submodules')
|
2018-12-06 14:08:18 +00:00
|
|
|
args = parser.parse_args()
|
|
|
|
|
2020-10-21 11:30:49 +00:00
|
|
|
success_counter = 0
|
2020-10-30 09:28:24 +00:00
|
|
|
failure_counter = 0
|
2018-12-06 14:08:18 +00:00
|
|
|
ignore_counter = 0
|
|
|
|
|
2020-10-21 11:30:49 +00:00
|
|
|
ignore_dirs = IGNORE_DIRS
|
|
|
|
if args.exclude_submodules:
|
2020-10-30 09:28:24 +00:00
|
|
|
ignore_dirs = ignore_dirs + tuple(get_submodule_dirs(full_path=True))
|
|
|
|
|
|
|
|
files = [os.path.abspath(file_path) for file_path in args.files]
|
|
|
|
|
|
|
|
if args.includes:
|
|
|
|
for directory in args.includes:
|
|
|
|
for root, dirnames, filenames in os.walk(directory):
|
|
|
|
for filename in filenames:
|
|
|
|
full_path = os.path.join(root, filename)
|
|
|
|
if re.search(RE_KCONFIG, filename):
|
|
|
|
files.append(full_path)
|
|
|
|
elif re.search(RE_KCONFIG, filename, re.IGNORECASE):
|
|
|
|
# On Windows Kconfig files are working with different cases!
|
|
|
|
print('{}: Incorrect filename. The case should be "Kconfig"!'.format(full_path))
|
|
|
|
failure_counter += 1
|
|
|
|
|
|
|
|
for full_path in files:
|
|
|
|
if full_path.startswith(ignore_dirs):
|
|
|
|
print('{}: Ignored'.format(full_path))
|
|
|
|
ignore_counter += 1
|
|
|
|
continue
|
|
|
|
is_valid = validate_kconfig_file(full_path, args.verbose)
|
|
|
|
if is_valid:
|
|
|
|
success_counter += 1
|
|
|
|
else:
|
|
|
|
failure_counter += 1
|
2018-12-06 14:08:18 +00:00
|
|
|
|
|
|
|
if ignore_counter > 0:
|
|
|
|
print('{} files have been ignored.'.format(ignore_counter))
|
2020-10-21 11:30:49 +00:00
|
|
|
if success_counter > 0:
|
|
|
|
print('{} files have been successfully checked.'.format(success_counter))
|
2020-10-30 09:28:24 +00:00
|
|
|
if failure_counter > 0:
|
|
|
|
print('{} files have errors. Please take a look at the log.'.format(failure_counter))
|
|
|
|
return 1
|
|
|
|
|
|
|
|
if not files:
|
|
|
|
print('WARNING: no files specified. Please specify files or use '
|
|
|
|
'"--includes" to search Kconfig files recursively')
|
2020-10-21 11:30:49 +00:00
|
|
|
return 0
|
2018-12-06 14:08:18 +00:00
|
|
|
|
|
|
|
|
2021-01-26 02:49:01 +00:00
|
|
|
if __name__ == '__main__':
|
2020-10-21 11:30:49 +00:00
|
|
|
sys.exit(main())
|