2022-12-11 08:30:27 +01:00
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# kas - setup tool for bitbake based projects
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#
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# Copyright (c) Siemens AG, 2017-2022
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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"""
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This plugin implements the ``kas dump`` command.
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When this command is executed, kas will parse all referenced config
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files, expand includes and print a flattened yaml version of the
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configuration to stdout. This config is semantically identical to the
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input, but does not include any references to other configuration files.
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The output of this command can be used to further analyse the build
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configuration.
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Please note:
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- the dumped config is semantically identical but not bit-by-bit identical
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- all referenced repositories are checked out to resolve cross-repo configs
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- all refspecs are resolved before patches are applied
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For example, to get a single config representing the final build config of
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``kas-project.yml:target-override.yml`` you could run:
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kas dump kas-project.yml:target-override.yml > kas-project-expanded.yml
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The generated config can be used as input for kas:
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kas build kas-project-expanded.yml
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"""
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import logging
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import sys
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import json
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import yaml
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from collections import OrderedDict
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from kas.context import get_context
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from kas.plugins.checkout import Checkout
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__license__ = 'MIT'
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__copyright__ = 'Copyright (c) Siemens AG, 2022'
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class Dump(Checkout):
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"""
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Implements a kas plugin that combines multiple kas configurations
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and dumps the result.
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"""
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name = 'dump'
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helpmsg = (
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'Expand and dump the final config to stdout. When resolving refspecs, '
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'these are resolved before patches are applied.'
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)
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2022-12-11 08:30:27 +01:00
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class KasYamlDumper(yaml.Dumper):
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"""
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Yaml formatter (dumper) that generates output in a formatting which
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is similar to kas example input files.
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"""
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def represent_data(self, data):
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if isinstance(data, str):
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if data.count('\n') > 0:
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return self.represent_scalar(
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'tag:yaml.org,2002:str',
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data,
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style='|')
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return self.represent_scalar('tag:yaml.org,2002:str', data)
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elif isinstance(data, OrderedDict):
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return self.represent_mapping(
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'tag:yaml.org,2002:map',
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data.items())
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elif data is None:
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return self.represent_scalar('tag:yaml.org,2002:null', '')
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return super().represent_data(data)
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@classmethod
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def setup_parser(cls, parser):
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super().setup_parser(parser)
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parser.add_argument('--format',
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choices=['yaml', 'json'],
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default='yaml',
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help='Output format (default: yaml)')
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parser.add_argument('--indent',
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type=int,
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default=4,
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help='Line indent (# of spaces, default: 4)')
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parser.add_argument('--resolve-refs',
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action='store_true',
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help='Replace floating refs with exact SHAs')
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def run(self, args):
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args.skip += [
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'setup_dir',
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'repos_apply_patches',
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'setup_environ',
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'write_bbconfig',
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]
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super().run(args)
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ctx = get_context()
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config_expanded = ctx.config.get_config()
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# includes are already expanded, delete the key
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if 'includes' in config_expanded['header']:
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del config_expanded['header']['includes']
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if args.resolve_refs:
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repos = ctx.config.get_repos()
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for r in repos:
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if r.refspec:
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config_expanded['repos'][r.name]['refspec'] = r.revision
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if args.format == 'json':
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json.dump(config_expanded, sys.stdout, indent=args.indent)
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sys.stdout.write('\n')
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elif args.format == 'yaml':
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yaml.dump(
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config_expanded, sys.stdout,
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indent=args.indent,
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Dumper=self.KasYamlDumper)
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else:
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logging.error('invalid format %s', args.format)
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sys.exit(1)
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__KAS_PLUGINS__ = [Dump]
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