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# Copyright (C) 2015 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-2 =*=
import cliapp
import jsonschema
import yaml
import os
import morphlib
class Defaults(object):
'''Represents predefined default values specific to Baserock definitions.
'''
def __init__(self, definitions_version, text=None):
self._build_systems = {}
self._split_rules = {}
schema_path = os.path.join(morphlib.util.schemas_directory(),
'defaults.json-schema')
with open(schema_path) as f:
self.schema = yaml.load(f)
if text:
self._build_systems, self._split_rules = self._parse(text)
def _parse(self, text):
build_systems = {}
split_rules = {}
# This reports errors against <string> rather than the actual filename,
# which is sad.
data = yaml.safe_load(text)
if data is None:
# It's OK to be empty, I guess.
return build_systems, split_rules
try:
# It would be nice if this could give line numbers when it spotted
# errors. Seems tricky.
jsonschema.validate(data, self.schema)
except jsonschema.ValidationError as e:
raise cliapp.AppException('Invalid DEFAULTS file: %s' % e.message)
build_system_data = data.get('build-systems', {})
for name, commands in build_system_data.items():
build_system = morphlib.buildsystem.BuildSystem()
build_system.from_dict(name, commands)
build_systems[name] = build_system
# It would make sense to create artifactsplitrule.SplitRule instances
# here, instead of an unlabelled data structure. That would need some
# changes to source.make_sources() and the 'artifactsplitrule' module.
split_rules_data = data.get('split-rules', {})
for kind, rules in split_rules_data.items():
split_rules[kind] = []
for rule in rules:
rule_unlabelled = (rule['artifact'], rule['include'])
split_rules[kind].append(rule_unlabelled)
return build_systems, split_rules
def build_systems(self):
return self._build_systems
def split_rules(self):
return self._split_rules
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