518 lines
20 KiB
Python
518 lines
20 KiB
Python
## gen-manual-lists.py
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##
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## This script generates the following Buildroot manual appendices:
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## - the package tables (one for the target, the other for host tools);
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## - the deprecated items.
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##
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## Author(s):
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## - Samuel Martin <s.martin49@gmail.com>
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##
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## Copyright (C) 2013 Samuel Martin
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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##
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## Note about python2.
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##
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## This script can currently only be run using python2 interpreter due to
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## its kconfiglib dependency (which is not yet python3 friendly).
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from __future__ import print_function
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from __future__ import unicode_literals
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import os
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import re
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import sys
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import datetime
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from argparse import ArgumentParser
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try:
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import kconfiglib
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except ImportError:
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message = """
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Could not find the module 'kconfiglib' in the PYTHONPATH:
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"""
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message += "\n".join([" {0}".format(path) for path in sys.path])
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message += """
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Make sure the Kconfiglib directory is in the PYTHONPATH, then relaunch the
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script.
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You can get kconfiglib from:
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https://github.com/ulfalizer/Kconfiglib
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"""
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sys.stderr.write(message)
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raise
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def get_symbol_subset(root, filter_func):
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""" Return a generator of kconfig items.
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:param root_item: Root item of the generated subset of items
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:param filter_func: Filter function
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"""
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if hasattr(root, "get_items"):
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get_items = root.get_items
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elif hasattr(root, "get_top_level_items"):
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get_items = root.get_top_level_items
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else:
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message = "The symbol does not contain any subset of symbols"
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raise Exception(message)
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for item in get_items():
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if item.is_symbol():
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if not filter_func(item):
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continue
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yield item
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elif item.is_menu() or item.is_choice():
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for i in get_symbol_subset(item, filter_func):
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yield i
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def get_symbol_parents(item, root=None, enable_choice=False):
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""" Return the list of the item's parents. The last item of the list is
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the closest parent, the first the furthest.
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:param item: Item from which the the parent list is generated
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:param root: Root item stopping the search (not included in the
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parent list)
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:param enable_choice: Flag enabling choices to appear in the parent list
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"""
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parent = item.get_parent()
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parents = []
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while parent and parent != root:
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if parent.is_menu():
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parents.append(parent.get_title())
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elif enable_choice and parent.is_choice():
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parents.append(parent.prompts[0][0])
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parent = parent.get_parent()
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if isinstance(root, kconfiglib.Menu) or \
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(enable_choice and isinstance(root, kconfiglib.Choice)):
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parents.append("") # Dummy empty parent to get a leading arrow ->
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parents.reverse()
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return parents
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def format_asciidoc_table(root, get_label_func, filter_func=lambda x: True,
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format_func=lambda x: x,
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enable_choice=False, sorted=True,
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item_label=None):
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""" Return the asciidoc formatted table of the items and their location.
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:param root: Root item of the item subset
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:param get_label_func: Item's label getter function
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:param filter_func: Filter function to apply on the item subset
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:param format_func: Function to format a symbol and the table header
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:param enable_choice: Enable choices to appear as part of the item's
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location
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:param sorted: Flag to alphabetically sort the table
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"""
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lines = []
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for item in get_symbol_subset(root, filter_func):
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lines.append(format_func(what="symbol", symbol=item, root=root,
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get_label_func=get_label_func,
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enable_choice=enable_choice))
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if sorted:
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lines.sort(key=lambda x: x.lower())
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table = ":halign: center\n\n"
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width, columns = format_func(what="layout")
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table = "[width=\"{0}\",cols=\"{1}\",options=\"header\"]\n".format(width, columns)
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table += "|===================================================\n"
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table += format_func(what="header", header=item_label, root=root)
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table += "\n" + "".join(lines) + "\n"
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table += "|===================================================\n"
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return table
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class Buildroot:
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""" Buildroot configuration object.
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"""
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root_config = "Config.in"
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package_dirname = "package"
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package_prefixes = ["BR2_PACKAGE_", "BR2_PACKAGE_HOST_"]
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re_pkg_prefix = re.compile(r"^(" + "|".join(package_prefixes) + ").*")
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deprecated_symbol = "BR2_DEPRECATED"
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list_in = """\
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//
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// Automatically generated list for Buildroot manual.
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//
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{table}
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"""
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list_info = {
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'target-packages': {
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'filename': "package-list",
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'root_menu': "Target packages",
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'filter': "_is_real_package",
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'format': "_format_symbol_prompt_location",
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'sorted': True,
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},
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'host-packages': {
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'filename': "host-package-list",
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'root_menu': "Host utilities",
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'filter': "_is_real_package",
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'format': "_format_symbol_prompt",
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'sorted': True,
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},
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'virtual-packages': {
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'filename': "virtual-package-list",
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'root_menu': "Target packages",
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'filter': "_is_virtual_package",
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'format': "_format_symbol_virtual",
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'sorted': True,
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},
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'deprecated': {
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'filename': "deprecated-list",
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'root_menu': None,
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'filter': "_is_deprecated",
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'format': "_format_symbol_prompt_location",
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'sorted': False,
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},
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}
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def __init__(self):
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self.base_dir = os.environ.get("TOPDIR")
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self.output_dir = os.environ.get("O")
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self.package_dir = os.path.join(self.base_dir, self.package_dirname)
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# The kconfiglib requires an environment variable named "srctree" to
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# load the configuration, so set it.
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os.environ.update({'srctree': self.base_dir})
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self.config = kconfiglib.Config(os.path.join(self.base_dir,
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self.root_config))
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self._deprecated = self.config.get_symbol(self.deprecated_symbol)
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self.gen_date = datetime.datetime.utcnow()
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self.br_version_full = os.environ.get("BR2_VERSION_FULL")
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if self.br_version_full and self.br_version_full.endswith("-git"):
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self.br_version_full = self.br_version_full[:-4]
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if not self.br_version_full:
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self.br_version_full = "undefined"
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def _get_package_symbols(self, package_name):
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""" Return a tuple containing the target and host package symbol.
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"""
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symbols = re.sub("[-+.]", "_", package_name)
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symbols = symbols.upper()
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symbols = tuple([prefix + symbols for prefix in self.package_prefixes])
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return symbols
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def _is_deprecated(self, symbol):
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""" Return True if the symbol is marked as deprecated, otherwise False.
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"""
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# This also catches BR2_DEPRECATED_SINCE_xxxx_xx
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return bool([ symbol for x in symbol.get_referenced_symbols()
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if x.get_name().startswith(self._deprecated.get_name()) ])
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def _is_package(self, symbol, type='real'):
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""" Return True if the symbol is a package or a host package, otherwise
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False.
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:param symbol: The symbol to check
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:param type: Limit to 'real' or 'virtual' types of packages,
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with 'real' being the default.
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Note: only 'real' is (implictly) handled for now
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"""
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if not symbol.is_symbol():
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return False
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if type == 'real' and not symbol.prompts:
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return False
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if type == 'virtual' and symbol.prompts:
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return False
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if not self.re_pkg_prefix.match(symbol.get_name()):
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return False
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pkg_name = self._get_pkg_name(symbol)
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pattern = "^(HOST_)?" + pkg_name + "$"
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pattern = re.sub("_", ".", pattern)
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pattern = re.compile(pattern, re.IGNORECASE)
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# Here, we cannot just check for the location of the Config.in because
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# of the "virtual" package.
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#
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# So, to check that a symbol is a package (not a package option or
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# anything else), we check for the existence of the package *.mk file.
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#
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# By the way, to actually check for a package, we should grep all *.mk
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# files for the following regex:
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# "\$\(eval \$\((host-)?(generic|autotools|cmake)-package\)\)"
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#
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# Implementation details:
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#
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# * The package list is generated from the *.mk file existence, the
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# first time this function is called. Despite the memory consumption,
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# this list is stored because the execution time of this script is
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# noticeably shorter than rescanning the package sub-tree for each
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# symbol.
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if not hasattr(self, "_package_list"):
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pkg_list = []
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for _, _, files in os.walk(self.package_dir):
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for file_ in (f for f in files if f.endswith(".mk")):
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pkg_list.append(re.sub(r"(.*?)\.mk", r"\1", file_))
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setattr(self, "_package_list", pkg_list)
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for pkg in getattr(self, "_package_list"):
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if type == 'real':
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if pattern.match(pkg) and not self._exists_virt_symbol(pkg):
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return True
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if type == 'virtual':
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if pattern.match('has_' + pkg):
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return True
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return False
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def _is_real_package(self, symbol):
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return self._is_package(symbol, 'real')
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def _is_virtual_package(self, symbol):
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return self._is_package(symbol, 'virtual')
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def _exists_virt_symbol(self, pkg_name):
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""" Return True if a symbol exists that defines the package as
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a virtual package, False otherwise
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:param pkg_name: The name of the package, for which to check if
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a symbol exists defining it as a virtual package
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"""
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virt_pattern = "BR2_PACKAGE_HAS_" + pkg_name + "$"
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virt_pattern = re.sub("_", ".", virt_pattern)
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virt_pattern = re.compile(virt_pattern, re.IGNORECASE)
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for sym in self.config:
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if virt_pattern.match(sym.get_name()):
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return True
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return False
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def _get_pkg_name(self, symbol):
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""" Return the package name of the specified symbol.
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:param symbol: The symbol to get the package name of
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"""
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return re.sub("BR2_PACKAGE_(HOST_)?(.*)", r"\2", symbol.get_name())
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def _get_symbol_label(self, symbol, mark_deprecated=True):
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""" Return the label (a.k.a. prompt text) of the symbol.
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:param symbol: The symbol
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:param mark_deprecated: Append a 'deprecated' to the label
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"""
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label = symbol.prompts[0][0]
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if self._is_deprecated(symbol) and mark_deprecated:
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label += " *(deprecated)*"
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return label
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def _format_symbol_prompt(self, what=None, symbol=None, root=None,
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enable_choice=False, header=None,
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get_label_func=lambda x: x):
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if what == "layout":
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return ( "30%", "^1" )
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if what == "header":
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return "| {0:<40}\n".format(header)
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if what == "symbol":
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return "| {0:<40}\n".format(get_label_func(symbol))
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message = "Invalid argument 'what': '%s'\n" % str(what)
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message += "Allowed values are: 'layout', 'header' and 'symbol'"
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raise Exception(message)
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def _format_symbol_prompt_location(self, what=None, symbol=None, root=None,
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enable_choice=False, header=None,
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get_label_func=lambda x: x):
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if what == "layout":
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return ( "100%", "^1,4" )
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if what == "header":
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if hasattr(root, "get_title"):
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loc_label = get_symbol_parents(root, None, enable_choice=enable_choice)
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loc_label += [root.get_title(), "..."]
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else:
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loc_label = ["Location"]
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return "| {0:<40} <| {1}\n".format(header, " -> ".join(loc_label))
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if what == "symbol":
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parents = get_symbol_parents(symbol, root, enable_choice)
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return "| {0:<40} <| {1}\n".format(get_label_func(symbol),
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" -> ".join(parents))
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message = "Invalid argument 'what': '%s'\n" % str(what)
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message += "Allowed values are: 'layout', 'header' and 'symbol'"
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raise Exception(message)
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def _format_symbol_virtual(self, what=None, symbol=None, root=None,
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enable_choice=False, header=None,
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get_label_func=lambda x: "?"):
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def _symbol_is_legacy(symbol):
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selects = [ s.get_name() for s in symbol.get_selected_symbols() ]
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return ("BR2_LEGACY" in selects)
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def _get_parent_package(sym):
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if self._is_real_package(sym):
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return None
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# Trim the symbol name from its last component (separated with
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# underscores), until we either find a symbol which is a real
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# package, or until we have no component (i.e. just 'BR2')
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name = sym.get_name()
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while name != "BR2":
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name = name.rsplit("_", 1)[0]
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s = self.config.get_symbol(name)
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if s is None:
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continue
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if self._is_real_package(s):
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return s
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return None
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def _get_providers(symbol):
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providers = list()
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for sym in self.config:
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if not sym.is_symbol():
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continue
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if _symbol_is_legacy(sym):
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continue
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selects = sym.get_selected_symbols()
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if not selects:
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continue
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for s in selects:
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if s == symbol:
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if sym.prompts:
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l = self._get_symbol_label(sym,False)
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parent_pkg = _get_parent_package(sym)
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if parent_pkg is not None:
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l = self._get_symbol_label(parent_pkg, False) \
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+ " (w/ " + l + ")"
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providers.append(l)
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else:
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providers.extend(_get_providers(sym))
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return providers
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if what == "layout":
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return ( "100%", "^1,4,4" )
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if what == "header":
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return "| {0:<20} <| {1:<32} <| Providers\n".format("Virtual packages", "Symbols")
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if what == "symbol":
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pkg = re.sub(r"^BR2_PACKAGE_HAS_(.+)$", r"\1", symbol.get_name())
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providers = _get_providers(symbol)
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return "| {0:<20} <| {1:<32} <| {2}\n".format(pkg.lower(),
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'+' + symbol.get_name() + '+',
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", ".join(providers))
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message = "Invalid argument 'what': '%s'\n" % str(what)
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message += "Allowed values are: 'layout', 'header' and 'symbol'"
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raise Exception(message)
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def print_list(self, list_type, enable_choice=True, enable_deprecated=True,
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dry_run=False, output=None):
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""" Print the requested list. If not dry run, then the list is
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automatically written in its own file.
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:param list_type: The list type to be generated
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:param enable_choice: Flag enabling choices to appear in the list
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:param enable_deprecated: Flag enabling deprecated items to appear in
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the package lists
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:param dry_run: Dry run (print the list in stdout instead of
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writing the list file
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"""
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def _get_menu(title):
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""" Return the first symbol menu matching the given title.
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"""
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menus = self.config.get_menus()
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menu = [m for m in menus if m.get_title().lower() == title.lower()]
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if not menu:
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message = "No such menu: '{0}'".format(title)
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raise Exception(message)
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return menu[0]
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list_config = self.list_info[list_type]
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root_title = list_config.get('root_menu')
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if root_title:
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root_item = _get_menu(root_title)
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else:
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root_item = self.config
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filter_ = getattr(self, list_config.get('filter'))
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filter_func = lambda x: filter_(x)
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format_func = getattr(self, list_config.get('format'))
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if not enable_deprecated and list_type != "deprecated":
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filter_func = lambda x: filter_(x) and not self._is_deprecated(x)
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mark_depr = list_type != "deprecated"
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get_label = lambda x: self._get_symbol_label(x, mark_depr)
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item_label = "Features" if list_type == "deprecated" else "Packages"
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table = format_asciidoc_table(root_item, get_label,
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filter_func=filter_func,
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format_func=format_func,
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enable_choice=enable_choice,
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sorted=list_config.get('sorted'),
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item_label=item_label)
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content = self.list_in.format(table=table)
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if dry_run:
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print(content)
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return
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if not output:
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output_dir = self.output_dir
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if not output_dir:
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print("Warning: Undefined output directory.")
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print("\tUse source directory as output location.")
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output_dir = self.base_dir
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output = os.path.join(output_dir,
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list_config.get('filename') + ".txt")
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if not os.path.exists(os.path.dirname(output)):
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os.makedirs(os.path.dirname(output))
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print("Writing the {0} list in:\n\t{1}".format(list_type, output))
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with open(output, 'w') as fout:
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fout.write(content)
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if __name__ == '__main__':
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list_types = ['target-packages', 'host-packages', 'virtual-packages', 'deprecated']
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parser = ArgumentParser()
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parser.add_argument("list_type", nargs="?", choices=list_types,
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|
help="""\
|
|
Generate the given list (generate all lists if unspecified)""")
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parser.add_argument("-n", "--dry-run", dest="dry_run", action='store_true',
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|
help="Output the generated list to stdout")
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|
parser.add_argument("--output-target", dest="output_target",
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|
help="Output target package file")
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|
parser.add_argument("--output-host", dest="output_host",
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|
help="Output host package file")
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|
parser.add_argument("--output-virtual", dest="output_virtual",
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|
help="Output virtual package file")
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|
parser.add_argument("--output-deprecated", dest="output_deprecated",
|
|
help="Output deprecated file")
|
|
args = parser.parse_args()
|
|
lists = [args.list_type] if args.list_type else list_types
|
|
buildroot = Buildroot()
|
|
for list_name in lists:
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|
output = getattr(args, "output_" + list_name.split("-", 1)[0])
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|
buildroot.print_list(list_name, dry_run=args.dry_run, output=output)
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