128 lines
4.8 KiB
Python
Executable file
128 lines
4.8 KiB
Python
Executable file
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
#
|
|
# gen-kconfig-doc.py — generate Sphinx .rst file from Kconfig files
|
|
#
|
|
# This script iterates over Kconfig and Kconfig.projbuild files in
|
|
# ESP-IDF component directories, and outputs documentation for these options
|
|
# as ReST markup.
|
|
# For each option in Kconfig file (e.g. 'FOO'), CONFIG_FOO link target is
|
|
# generated, allowing options to be referenced in other documents
|
|
# (using :envvar:`CONFIG_FOO`)
|
|
#
|
|
# This script uses kconfiglib library to do all the work of parsing Kconfig
|
|
# files: https://github.com/ulfalizer/Kconfiglib
|
|
#
|
|
# Copyright 2017 Espressif Systems (Shanghai) PTE LTD
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http:#www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
|
|
import os
|
|
import kconfiglib
|
|
|
|
# Indentation to be used in the generated file
|
|
INDENT = ' '
|
|
|
|
# Characters used when underlining section heading
|
|
HEADING_SYMBOLS = '#*=-^"+'
|
|
|
|
# Keep the heading level in sync with api-reference/kconfig.rst
|
|
INITIAL_HEADING_LEVEL = 2
|
|
MAX_HEADING_LEVEL = 5
|
|
OPTION_HEADING_LEVEL = 6
|
|
|
|
def print_menu_contents(title, items, heading_level, breadcrumbs, genindex):
|
|
if not genindex:
|
|
if title:
|
|
print_section_heading(title, heading_level)
|
|
if heading_level == INITIAL_HEADING_LEVEL+1:
|
|
print_menu_contents(title, items, heading_level, breadcrumbs, True)
|
|
for entry in items:
|
|
if entry.is_menu():
|
|
if len(breadcrumbs) > 0:
|
|
new_breadcrumbs = breadcrumbs + ' > ' + entry.get_title()
|
|
else:
|
|
new_breadcrumbs = entry.get_title()
|
|
|
|
print_menu_contents(entry.get_title(), entry.get_items(),
|
|
min(heading_level + 1, MAX_HEADING_LEVEL),
|
|
new_breadcrumbs, genindex)
|
|
elif genindex:
|
|
print_item(entry, breadcrumbs)
|
|
elif entry.is_choice():
|
|
print_choice(entry, breadcrumbs)
|
|
else:
|
|
if len(entry.get_prompts()) == 0:
|
|
# Skip entries which can never be visible
|
|
continue
|
|
# Currently this does not handle 'menuconfig' entires in any special way,
|
|
# as Kconfglib offers no way of recognizing them automatically.
|
|
print_option(entry, breadcrumbs)
|
|
# Trailing newline after every option
|
|
print
|
|
|
|
def print_choice(choice, breadcrumbs):
|
|
print_option(choice, breadcrumbs)
|
|
print
|
|
print '%sAvailable options' % INDENT
|
|
for opt in choice.get_symbols():
|
|
# Format available options as a list
|
|
print '%s- %s' % (INDENT * 2, opt.name)
|
|
|
|
def print_section_heading(title, heading_level):
|
|
print title
|
|
print HEADING_SYMBOLS[heading_level] * len(title)
|
|
print
|
|
|
|
def print_option(opt, breadcrumbs):
|
|
# add link target so we can use :envvar:`CONFIG_FOO`
|
|
print '.. envvar:: CONFIG_%s' % opt.name
|
|
print
|
|
if len(opt.prompts) > 0:
|
|
print '%s%s' % (INDENT, opt.prompts[0][0])
|
|
print
|
|
if opt.get_help() is not None:
|
|
# Help text normally contains newlines, but spaces at the beginning of
|
|
# each line are stripped by kconfiglib. We need to re-indent the text
|
|
# to produce valid ReST.
|
|
print '%s%s' % (INDENT, opt.get_help().replace('\n', '\n%s' % INDENT))
|
|
print '%sFound in\n%s' % (INDENT, INDENT * 2 + breadcrumbs)
|
|
print
|
|
|
|
def print_item(opt, breadcrumbs):
|
|
print '- :envvar:`CONFIG_%s`' % opt.name
|
|
print
|
|
|
|
def process_kconfig_file(kconfig_file, heading_level, breadcrumbs):
|
|
if os.path.exists(kconfig_file):
|
|
cfg = kconfiglib.Config(kconfig_file, print_warnings=True)
|
|
print_menu_contents(None, cfg.get_top_level_items(), heading_level, breadcrumbs, False)
|
|
|
|
def print_all_components():
|
|
heading_level = INITIAL_HEADING_LEVEL
|
|
# Currently this works only for IDF components.
|
|
# TODO: figure out if this can be re-used for documenting applications?
|
|
components_path = os.path.join(os.path.curdir, '../..', 'components')
|
|
for component_name in os.listdir(components_path):
|
|
if component_name.startswith('.'):
|
|
continue # skip system thumbnail folders
|
|
|
|
kconfig_file_path = os.path.join(components_path, component_name, 'Kconfig')
|
|
|
|
process_kconfig_file(kconfig_file_path, heading_level, 'Component config')
|
|
process_kconfig_file(kconfig_file_path + '.projbuild', heading_level, '')
|
|
|
|
if __name__ == '__main__':
|
|
print_all_components()
|