forked from mirrors/gecko-dev
02a7b4ebdf
Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly. To produce this patch I did all of the following: 1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions. 2. Run ./mach lint --linter black --fix 3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks. 4. Make some ad-hoc manual updates to `testing/marionette/client/setup.py`, `testing/marionette/harness/setup.py`, and `testing/firefox-ui/harness/setup.py`, which have hard-coded regexes that break after the reformat. 5. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023). # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D94045
74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
from __future__ import absolute_import, print_function, unicode_literals
|
|
|
|
from .graph import Graph
|
|
from .task import Task
|
|
|
|
import attr
|
|
import six
|
|
|
|
|
|
@attr.s(frozen=True)
|
|
class TaskGraph(object):
|
|
"""
|
|
Representation of a task graph.
|
|
|
|
A task graph is a combination of a Graph and a dictionary of tasks indexed
|
|
by label. TaskGraph instances should be treated as immutable.
|
|
|
|
In the graph, tasks are said to "link to" their dependencies. Whereas
|
|
tasks are "linked from" their dependents.
|
|
"""
|
|
|
|
tasks = attr.ib()
|
|
graph = attr.ib()
|
|
|
|
def __attrs_post_init__(self):
|
|
assert set(self.tasks) == self.graph.nodes
|
|
|
|
def for_each_task(self, f, *args, **kwargs):
|
|
for task_label in self.graph.visit_postorder():
|
|
task = self.tasks[task_label]
|
|
f(task, self, *args, **kwargs)
|
|
|
|
def __getitem__(self, label):
|
|
"Get a task by label"
|
|
return self.tasks[label]
|
|
|
|
def __contains__(self, label):
|
|
return label in self.tasks
|
|
|
|
def __iter__(self):
|
|
"Iterate over tasks in undefined order"
|
|
return six.itervalues(self.tasks)
|
|
|
|
def to_json(self):
|
|
"Return a JSON-able object representing the task graph, as documented"
|
|
named_links_dict = self.graph.named_links_dict()
|
|
# this dictionary may be keyed by label or by taskid, so let's just call it 'key'
|
|
tasks = {}
|
|
for key in self.graph.visit_postorder():
|
|
tasks[key] = self.tasks[key].to_json()
|
|
# overwrite dependencies with the information in the taskgraph's edges.
|
|
tasks[key]["dependencies"] = named_links_dict.get(key, {})
|
|
return tasks
|
|
|
|
@classmethod
|
|
def from_json(cls, tasks_dict):
|
|
"""
|
|
This code is used to generate the a TaskGraph using a dictionary
|
|
which is representative of the TaskGraph.
|
|
"""
|
|
tasks = {}
|
|
edges = set()
|
|
for key, value in six.iteritems(tasks_dict):
|
|
tasks[key] = Task.from_json(value)
|
|
if "task_id" in value:
|
|
tasks[key].task_id = value["task_id"]
|
|
for depname, dep in six.iteritems(value["dependencies"]):
|
|
edges.add((key, dep, depname))
|
|
task_graph = cls(tasks, Graph(set(tasks), edges))
|
|
return tasks, task_graph
|