# 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/.
"""
Tools for interacting with existing taskgraphs. """
from taskgraph.util.taskcluster import find_task_id, get_artifact
def find_decision_task(parameters, graph_config): """Given the parameters for this action, find the taskId of the decision
task"""
head_rev_param = "{}head_rev".format(graph_config["project-repo-param-prefix"]) return find_task_id( "{}.v2.{}.revision.{}.taskgraph.decision".format(
graph_config["trust-domain"],
parameters["project"],
parameters[head_rev_param],
)
)
def find_existing_tasks(previous_graph_ids):
existing_tasks = {} for previous_graph_id in previous_graph_ids:
label_to_taskid = get_artifact(previous_graph_id, "public/label-to-taskid.json")
existing_tasks.update(label_to_taskid) return existing_tasks
def find_existing_tasks_from_previous_kinds(
full_task_graph, previous_graph_ids, rebuild_kinds
): """Given a list of previous decision/action taskIds and kinds to ignore from the previous graphs, return a dictionary of labels-to-taskids to use as ``existing_tasks`` in the optimization step."""
existing_tasks = find_existing_tasks(previous_graph_ids)
kind_labels = {
t.label for t in full_task_graph.tasks.values() if t.attributes["kind"] notin rebuild_kinds
} return {
label: taskid for (label, taskid) in existing_tasks.items() if label in kind_labels
}
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