40e6308aa9
For new applications like this kiwi version and its use cases it is better to base it on a more recent python version
91 lines
2.8 KiB
Python
91 lines
2.8 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 lxml import etree
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from tempfile import NamedTemporaryFile
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import os
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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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from . import xml_parse
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from .exceptions import (
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KiwiSchemaImportError,
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KiwiValidationError,
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KiwiDescriptionInvalid,
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KiwiDataStructureError
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)
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class XMLDescription(object):
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"""
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Implements data management of the XML description:
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- XSLT Style Sheet processing to apply on this version of kiwi
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- Schema Validation based on RelaxNG schema
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- Loading XML data into internal data structures
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"""
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def __init__(self, description):
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self.description_xslt_processed = NamedTemporaryFile()
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self.description = description
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def load(self):
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self.__xsltproc()
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try:
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relaxng = etree.RelaxNG(
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etree.parse(Defaults.get_schema_file())
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)
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except Exception as e:
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raise KiwiSchemaImportError(
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'%s: %s' % (type(e).__name__, format(e))
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)
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try:
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description = etree.parse(self.description_xslt_processed.name)
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validation_ok = relaxng.validate(
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description
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)
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except Exception as e:
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raise KiwiValidationError(
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'%s: %s' % (type(e).__name__, format(e))
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)
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if not validation_ok:
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raise KiwiDescriptionInvalid(
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'Schema validation for %s failed' % self.description
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)
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return self.__parse()
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def __parse(self):
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try:
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parse = xml_parse.parse(
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self.description_xslt_processed.name, True
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)
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parse.description_dir = os.path.dirname(self.description)
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return parse
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except Exception as e:
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raise KiwiDataStructureError(
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'%s: %s' % (type(e).__name__, format(e))
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)
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def __xsltproc(self):
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Command.run(
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[
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'xsltproc', '-o', self.description_xslt_processed.name,
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Defaults.get_xsl_stylesheet_file(),
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self.description
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]
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)
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