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4fa5e41137
Instead of directly printing output messages, change kdoc classes to return an interactor with the output message, letting the actual display to happen at the command-line command. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/557304c8458f1fb4aa2e833f4bdaff953094ddcb.1744106242.git.mchehab+huawei@kernel.org
296 lines
10 KiB
Python
Executable file
296 lines
10 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0
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# Copyright(c) 2025: Mauro Carvalho Chehab <mchehab@kernel.org>.
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#
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# pylint: disable=C0103
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#
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# Converted from the kernel-doc script originally written in Perl
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# under GPLv2, copyrighted since 1998 by the following authors:
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#
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# Aditya Srivastava <yashsri421@gmail.com>
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# Akira Yokosawa <akiyks@gmail.com>
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# Alexander A. Klimov <grandmaster@al2klimov.de>
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# Alexander Lobakin <aleksander.lobakin@intel.com>
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# André Almeida <andrealmeid@igalia.com>
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# Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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# Anna-Maria Behnsen <anna-maria@linutronix.de>
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# Armin Kuster <akuster@mvista.com>
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# Bart Van Assche <bart.vanassche@sandisk.com>
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# Ben Hutchings <ben@decadent.org.uk>
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# Borislav Petkov <bbpetkov@yahoo.de>
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# Chen-Yu Tsai <wenst@chromium.org>
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# Coco Li <lixiaoyan@google.com>
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# Conchúr Navid <conchur@web.de>
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# Daniel Santos <daniel.santos@pobox.com>
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# Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
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# Dan Luedtke <mail@danrl.de>
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# Donald Hunter <donald.hunter@gmail.com>
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# Gabriel Krisman Bertazi <krisman@collabora.co.uk>
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# Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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# Harvey Harrison <harvey.harrison@gmail.com>
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# Horia Geanta <horia.geanta@freescale.com>
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# Ilya Dryomov <idryomov@gmail.com>
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# Jakub Kicinski <kuba@kernel.org>
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# Jani Nikula <jani.nikula@intel.com>
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# Jason Baron <jbaron@redhat.com>
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# Jason Gunthorpe <jgg@nvidia.com>
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# Jérémy Bobbio <lunar@debian.org>
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# Johannes Berg <johannes.berg@intel.com>
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# Johannes Weiner <hannes@cmpxchg.org>
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# Jonathan Cameron <Jonathan.Cameron@huawei.com>
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# Jonathan Corbet <corbet@lwn.net>
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# Jonathan Neuschäfer <j.neuschaefer@gmx.net>
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# Kamil Rytarowski <n54@gmx.com>
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# Kees Cook <kees@kernel.org>
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# Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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# Levin, Alexander (Sasha Levin) <alexander.levin@verizon.com>
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# Linus Torvalds <torvalds@linux-foundation.org>
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# Lucas De Marchi <lucas.demarchi@profusion.mobi>
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# Mark Rutland <mark.rutland@arm.com>
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# Markus Heiser <markus.heiser@darmarit.de>
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# Martin Waitz <tali@admingilde.org>
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# Masahiro Yamada <masahiroy@kernel.org>
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# Matthew Wilcox <willy@infradead.org>
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# Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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# Michal Wajdeczko <michal.wajdeczko@intel.com>
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# Michael Zucchi
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# Mike Rapoport <rppt@linux.ibm.com>
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# Niklas Söderlund <niklas.soderlund@corigine.com>
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# Nishanth Menon <nm@ti.com>
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# Paolo Bonzini <pbonzini@redhat.com>
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# Pavan Kumar Linga <pavan.kumar.linga@intel.com>
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# Pavel Pisa <pisa@cmp.felk.cvut.cz>
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# Peter Maydell <peter.maydell@linaro.org>
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# Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
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# Randy Dunlap <rdunlap@infradead.org>
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# Richard Kennedy <richard@rsk.demon.co.uk>
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# Rich Walker <rw@shadow.org.uk>
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# Rolf Eike Beer <eike-kernel@sf-tec.de>
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# Sakari Ailus <sakari.ailus@linux.intel.com>
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# Silvio Fricke <silvio.fricke@gmail.com>
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# Simon Huggins
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# Tim Waugh <twaugh@redhat.com>
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# Tomasz Warniełło <tomasz.warniello@gmail.com>
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# Utkarsh Tripathi <utripathi2002@gmail.com>
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# valdis.kletnieks@vt.edu <valdis.kletnieks@vt.edu>
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# Vegard Nossum <vegard.nossum@oracle.com>
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# Will Deacon <will.deacon@arm.com>
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# Yacine Belkadi <yacine.belkadi.1@gmail.com>
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# Yujie Liu <yujie.liu@intel.com>
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# TODO: implement warning filtering
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"""
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kernel_doc
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==========
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Print formatted kernel documentation to stdout
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Read C language source or header FILEs, extract embedded
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documentation comments, and print formatted documentation
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to standard output.
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The documentation comments are identified by the "/**"
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opening comment mark.
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See Documentation/doc-guide/kernel-doc.rst for the
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documentation comment syntax.
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"""
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import argparse
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import logging
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import os
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import sys
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# Import Python modules
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LIB_DIR = "lib/kdoc"
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SRC_DIR = os.path.dirname(os.path.realpath(__file__))
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sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR))
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from kdoc_files import KernelFiles # pylint: disable=C0413
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from kdoc_output import RestFormat, ManFormat # pylint: disable=C0413
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DESC = """
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Read C language source or header FILEs, extract embedded documentation comments,
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and print formatted documentation to standard output.
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The documentation comments are identified by the "/**" opening comment mark.
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See Documentation/doc-guide/kernel-doc.rst for the documentation comment syntax.
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"""
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EXPORT_FILE_DESC = """
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Specify an additional FILE in which to look for EXPORT_SYMBOL information.
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May be used multiple times.
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"""
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EXPORT_DESC = """
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Only output documentation for the symbols that have been
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exported using EXPORT_SYMBOL() and related macros in any input
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FILE or -export-file FILE.
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"""
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INTERNAL_DESC = """
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Only output documentation for the symbols that have NOT been
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exported using EXPORT_SYMBOL() and related macros in any input
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FILE or -export-file FILE.
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"""
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FUNCTION_DESC = """
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Only output documentation for the given function or DOC: section
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title. All other functions and DOC: sections are ignored.
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May be used multiple times.
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"""
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NOSYMBOL_DESC = """
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Exclude the specified symbol from the output documentation.
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May be used multiple times.
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"""
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FILES_DESC = """
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Header and C source files to be parsed.
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"""
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WARN_CONTENTS_BEFORE_SECTIONS_DESC = """
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Warns if there are contents before sections (deprecated).
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This option is kept just for backward-compatibility, but it does nothing,
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neither here nor at the original Perl script.
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"""
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class MsgFormatter(logging.Formatter):
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def format(self, record):
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record.levelname = record.levelname.capitalize()
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return logging.Formatter.format(self, record)
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def main():
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"""Main program"""
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parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter,
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description=DESC)
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# Normal arguments
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parser.add_argument("-v", "-verbose", "--verbose", action="store_true",
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help="Verbose output, more warnings and other information.")
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parser.add_argument("-d", "-debug", "--debug", action="store_true",
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help="Enable debug messages")
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parser.add_argument("-M", "-modulename", "--modulename",
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help="Allow setting a module name at the output.")
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parser.add_argument("-l", "-enable-lineno", "--enable_lineno",
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action="store_true",
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help="Enable line number output (only in ReST mode)")
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# Arguments to control the warning behavior
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parser.add_argument("-Wreturn", "--wreturn", action="store_true",
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help="Warns about the lack of a return markup on functions.")
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parser.add_argument("-Wshort-desc", "-Wshort-description", "--wshort-desc",
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action="store_true",
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help="Warns if initial short description is missing")
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parser.add_argument("-Wcontents-before-sections",
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"--wcontents-before-sections", action="store_true",
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help=WARN_CONTENTS_BEFORE_SECTIONS_DESC)
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parser.add_argument("-Wall", "--wall", action="store_true",
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help="Enable all types of warnings")
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parser.add_argument("-Werror", "--werror", action="store_true",
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help="Treat warnings as errors.")
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parser.add_argument("-export-file", "--export-file", action='append',
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help=EXPORT_FILE_DESC)
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# Output format mutually-exclusive group
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out_group = parser.add_argument_group("Output format selection (mutually exclusive)")
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out_fmt = out_group.add_mutually_exclusive_group()
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out_fmt.add_argument("-m", "-man", "--man", action="store_true",
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help="Output troff manual page format.")
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out_fmt.add_argument("-r", "-rst", "--rst", action="store_true",
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help="Output reStructuredText format (default).")
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out_fmt.add_argument("-N", "-none", "--none", action="store_true",
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help="Do not output documentation, only warnings.")
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# Output selection mutually-exclusive group
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sel_group = parser.add_argument_group("Output selection (mutually exclusive)")
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sel_mut = sel_group.add_mutually_exclusive_group()
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sel_mut.add_argument("-e", "-export", "--export", action='store_true',
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help=EXPORT_DESC)
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sel_mut.add_argument("-i", "-internal", "--internal", action='store_true',
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help=INTERNAL_DESC)
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sel_mut.add_argument("-s", "-function", "--symbol", action='append',
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help=FUNCTION_DESC)
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# This one is valid for all 3 types of filter
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parser.add_argument("-n", "-nosymbol", "--nosymbol", action='append',
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help=NOSYMBOL_DESC)
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parser.add_argument("files", metavar="FILE",
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nargs="+", help=FILES_DESC)
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args = parser.parse_args()
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if args.wall:
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args.wreturn = True
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args.wshort_desc = True
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args.wcontents_before_sections = True
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logger = logging.getLogger()
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if not args.debug:
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logger.setLevel(logging.INFO)
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else:
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logger.setLevel(logging.DEBUG)
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formatter = MsgFormatter('%(levelname)s: %(message)s')
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handler = logging.StreamHandler()
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handler.setFormatter(formatter)
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logger.addHandler(handler)
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if args.man:
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out_style = ManFormat()
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elif args.none:
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out_style = None
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else:
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out_style = RestFormat()
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kfiles = KernelFiles(files=args.files, verbose=args.verbose,
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out_style=out_style, werror=args.werror,
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wreturn=args.wreturn, wshort_desc=args.wshort_desc,
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wcontents_before_sections=args.wcontents_before_sections,
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modulename=args.modulename,
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export_file=args.export_file)
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kfiles.parse()
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for t in kfiles.msg(enable_lineno=args.enable_lineno, export=args.export,
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internal=args.internal, symbol=args.symbol,
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nosymbol=args.nosymbol):
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msg = t[1]
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if msg:
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print(msg)
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# Call main method
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if __name__ == "__main__":
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main()
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