88 lines
3.3 KiB
Python
88 lines
3.3 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 copy
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from voluptuous import Required
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from taskgraph.task import Task
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from taskgraph.util.attributes import sorted_unique_list
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from taskgraph.util.schema import Schema
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from . import group_tasks
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schema = Schema({
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Required('primary-dependency', 'primary dependency task'): Task,
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Required(
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'dependent-tasks',
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'dictionary of dependent tasks, keyed by kind',
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): {basestring: Task},
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})
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def loader(kind, path, config, params, loaded_tasks):
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"""
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Load tasks based on the jobs dependant kinds, designed for use as
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multiple-dependent needs.
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Required ``group-by-fn`` is used to define how we coalesce the
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multiple deps together to pass to transforms, e.g. all kinds specified get
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collapsed by platform with `platform`
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Optional ``primary-dependency`` (ordered list or string) is used to determine
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which upstream kind to inherit attrs from. See ``get_primary_dep``.
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The `only-for-build-type` kind configuration, if specified, will limit
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the build types for which a job will be created.
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Optional ``job-template`` kind configuration value, if specified, will be used to
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pass configuration down to the specified transforms used.
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"""
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job_template = config.get('job-template')
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for dep_tasks in group_tasks(config, loaded_tasks):
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kinds = [dep.kind for dep in dep_tasks]
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kinds_occurrences = {kind: kinds.count(kind) for kind in kinds}
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dep_tasks_per_unique_key = {
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dep.kind if kinds_occurrences[dep.kind] == 1 else dep.label: dep
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for dep in dep_tasks
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}
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job = {'dependent-tasks': dep_tasks_per_unique_key}
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job['primary-dependency'] = get_primary_dep(config, dep_tasks_per_unique_key)
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if job_template:
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job.update(copy.deepcopy(job_template))
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yield job
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def get_primary_dep(config, dep_tasks):
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"""Find the dependent task to inherit attributes from.
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If ``primary-dependency`` is defined in ``kind.yml`` and is a string,
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then find the first dep with that task kind and return it. If it is
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defined and is a list, the first kind in that list with a matching dep
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is the primary dependency. If it's undefined, return the first dep.
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"""
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primary_dependencies = config.get('primary-dependency')
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if isinstance(primary_dependencies, basestring):
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primary_dependencies = [primary_dependencies]
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if not primary_dependencies:
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assert len(dep_tasks) == 1, "Must define a primary-dependency!"
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return dep_tasks.values()[0]
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primary_dep = None
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for primary_kind in primary_dependencies:
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for dep_kind in dep_tasks:
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if dep_kind == primary_kind:
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assert primary_dep is None, \
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"Too many primary dependent tasks in dep_tasks: {}!".format(
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[t.label for t in dep_tasks]
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)
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primary_dep = dep_tasks[dep_kind]
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if primary_dep is None:
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raise Exception("Can't find dependency of {}: {}".format(
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config['primary-dependency'], config
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))
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return primary_dep
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