98 lines
3.8 KiB
Python
98 lines
3.8 KiB
Python
"""
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Copyright 2018 Attila Szollosi
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This file is part of pmbootstrap.
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pmbootstrap 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 3 of the License, or
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(at your option) any later version.
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pmbootstrap 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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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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import glob
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import logging
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import re
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import os
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import pmb.build
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import pmb.config
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import pmb.parse
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import pmb.helpers.pmaports
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def is_set(config, option):
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"""
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Check, whether a boolean or tristate option is enabled
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either as builtin or module.
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"""
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return re.search("^CONFIG_" + option + "=[ym]", config, re.M) is not None
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def check(args, pkgname, details=False):
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"""
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Check for necessary kernel config options.
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:returns: True when the check was successful, False otherwise
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"""
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# Pkgname: allow omitting "linux-" prefix
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if pkgname.startswith("linux-"):
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flavor = pkgname.split("linux-")[1]
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logging.info("PROTIP: You can simply do 'pmbootstrap kconfig check " +
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flavor + "'")
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else:
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flavor = pkgname
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# Read all kernel configs in the aport
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ret = True
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aport = pmb.helpers.pmaports.find(args, "linux-" + flavor)
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for config_path in glob.glob(aport + "/config-*"):
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logging.debug("Check kconfig: " + config_path)
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with open(config_path) as handle:
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config = handle.read()
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# The architecture of the config is in the name, so it just needs to be
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# extracted
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config_arch = os.path.basename(config_path).split(".")[1]
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# Loop trough necessary config options, and print a warning,
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# if any is missing
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path = "linux-" + flavor + "/" + os.path.basename(config_path)
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for archs, options in pmb.config.necessary_kconfig_options.items():
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if archs != "all":
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# Split and check if the device's architecture architecture has special config
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# options. If option does not contain the architecture of the device
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# kernel, then just skip the option.
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architectures = archs.split(" ")
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if config_arch not in architectures:
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continue
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for option, option_value in options.items():
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if option_value not in [True, False]:
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raise RuntimeError("kconfig check code can only handle"
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" True/False right now, given value '" +
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str(option_value) + "' is not supported. If you"
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" need this, please open an issue.")
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if option_value != is_set(config, option):
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ret = False
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if details:
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should = "should" if option_value else "should *not*"
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link = ("https://wiki.postmarketos.org/wiki/"
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"Kernel_configuration#CONFIG_" + option)
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logging.info("WARNING: " + path + ": CONFIG_" + option + " " +
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should + " be set. See <" + link +
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"> for details.")
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else:
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logging.warning("WARNING: " + path + " isn't configured"
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" properly for postmarketOS, run"
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" 'pmbootstrap kconfig check' for"
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" details!")
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break
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return ret
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