зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.7 KiB
Python
88 строки
2.7 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import absolute_import, print_function, unicode_literals
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import attr
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from ..config import GraphConfig
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from ..parameters import Parameters
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from ..util.schema import Schema, validate_schema
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@attr.s(frozen=True)
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class TransformConfig(object):
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"""
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A container for configuration affecting transforms. The `config` argument
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to transforms is an instance of this class.
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"""
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# the name of the current kind
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kind = attr.ib()
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# the path to the kind configuration directory
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path = attr.ib(type=basestring)
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# the parsed contents of kind.yml
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config = attr.ib(type=dict)
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# the parameters for this task-graph generation run
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params = attr.ib(type=Parameters)
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# a list of all the tasks associated with the kind dependencies of the
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# current kind
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kind_dependencies_tasks = attr.ib()
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# Global configuration of the taskgraph
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graph_config = attr.ib(type=GraphConfig)
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@attr.s()
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class TransformSequence(object):
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"""
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Container for a sequence of transforms. Each transform is represented as a
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callable taking (config, items) and returning a generator which will yield
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transformed items. The resulting sequence has the same interface.
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This is convenient to use in a file full of transforms, as it provides a
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decorator, @transforms.add, that will add the decorated function to the
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sequence.
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"""
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_transforms = attr.ib(factory=list)
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def __call__(self, config, items):
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for xform in self._transforms:
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items = xform(config, items)
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if items is None:
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raise Exception("Transform {} is not a generator".format(xform))
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return items
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def add(self, func):
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self._transforms.append(func)
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return func
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def add_validate(self, schema):
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self.add(ValidateSchema(schema))
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@attr.s
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class ValidateSchema(object):
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schema = attr.ib(type=Schema)
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def __call__(self, config, tasks):
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for task in tasks:
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if 'name' in task:
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error = "In {kind} kind task {name!r}:".format(
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kind=config.kind, name=task['name'])
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elif 'label' in task:
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error = "In job {label!r}:".format(label=task['label'])
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elif 'primary-dependency' in task:
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error = "In {kind} kind task for {dependency!r}:".format(
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kind=config.kind, dependency=task['primary-dependency'].label)
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else:
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error = "In unknown task:"
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validate_schema(self.schema, task, error)
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yield task
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