79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
# Copyright (c) 2015 SUSE Linux GmbH. All rights reserved.
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#
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# This file is part of kiwi.
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#
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# kiwi 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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#
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# kiwi 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 kiwi. If not, see <http://www.gnu.org/licenses/>
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#
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from tempfile import NamedTemporaryFile
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# project
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from ..command import Command
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from ..defaults import Defaults
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class Shell(object):
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"""
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Special character handling for shell evaluated code
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"""
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@classmethod
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def quote(self, message):
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"""
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Quote characters which have a special meaning for bash
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but should be used as normal characters. actually I had
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planned to use pipes.quote but it does not quote as I
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had expected it. e.g 'name_wit_a_$' does not quote the $
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so we do it on our own for the scope of kiwi
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:param string message: message text
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:return: quoted text
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:rtype: string
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"""
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# \\ quoting must be first in the list
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quote_characters = ['\\', '$', '"', '`', '!']
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for quote in quote_characters:
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message = message.replace(quote, '\\' + quote)
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return message
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@classmethod
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def quote_key_value_file(self, filename):
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"""
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Quote given input file which has to be of the form
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key=value to be able to become sourced by the shell
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:param string filename: file path name
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:return: quoted text
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:rtype: string
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"""
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temp_copy = NamedTemporaryFile()
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Command.run(['cp', filename, temp_copy.name])
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Shell.run_common_function('baseQuoteFile', [temp_copy.name])
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with open(temp_copy.name) as quoted:
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return quoted.read().splitlines()
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@classmethod
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def run_common_function(self, name, parameters):
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"""
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Run a function implemented in boot/functions.sh
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:param string name: function name
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:param list parameters: function arguments
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"""
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Command.run([
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'bash', '-c',
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'source ' + Defaults.get_common_functions_file() +
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'; ' + name + ' ' + ' '.join(parameters)
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])
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