mirror of
https://github.com/vyos/vyos-build.git
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66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
# Copyright (C) 2015 VyOS maintainers and contributors
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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 version 2 or later as
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# published by the Free Software Foundation.
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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, see <http://www.gnu.org/licenses/>.
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#
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# File: util.py
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# Purpose:
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# Various common functions for use in build scripts.
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import sys
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import os
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from distutils.spawn import find_executable
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import defaults
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def check_build_config():
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if not os.path.exists(defaults.BUILD_CONFIG):
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print("Build config file ({file}) does not exist".format(file=defaults.BUILD_CONFIG))
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print("If you are running this script by hand, you should better not. Run 'make iso' instead.")
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sys.exit(1)
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class DependencyChecker(object):
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def __init__(self, spec):
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missing_packages = self._get_missing_packages(spec['packages'])
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missing_binaries = self._get_missing_binaries(spec['binaries'])
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self.__missing = {'packages': missing_packages, 'binaries': missing_binaries}
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def _package_installed(self, name):
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result = os.system("dpkg-query -W --showformat='${{Status}}\n' {name} 2>&1 | grep 'install ok installed' >/dev/null".format(name=name))
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return True if result == 0 else False
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def _get_missing_packages(self, packages):
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missing_packages = []
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for p in packages:
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if not self._package_installed(p):
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missing_packages.append(p)
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return missing_packages
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def _get_missing_binaries(self, binaries):
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missing_binaries = []
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for b in binaries:
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if not find_executable(b):
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missing_binaries.append(b)
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return missing_binaries
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def get_missing_dependencies(self):
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if self.__missing['packages'] or self.__missing['binaries']:
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return self.__missing
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return None
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def print_missing_deps(self):
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print("Missing packages: " + " ".join(self.__missing['packages']))
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print("Missing binaries: " + " ".join(self.__missing['binaries']))
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