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infra / config / generators / cq-usage.star [blame]
# Copyright 2021 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Generator to output information about blocking CQ builders.
This generator copies commit-queue.cfg, removing builders that are experimental
or includable_only and removing other fields that don't impact when the CQ is
triggered or what the CQ triggers. The resultant file is output as
cq-usage/default.cfg. This enables applying limited owners for changes that
would impact the CQ for all users.
"""
load("@stdlib//internal/luci/proto.star", "cq_pb")
load("//lib/try.star", "location_filters_without_defaults")
load("//subprojects/chromium/fallback-cq.star", "fallback_cq")
def _remove_none(l):
return [e for e in l if e != None]
def _trim_builder(builder, include_path_based):
if builder.includable_only or builder.experiment_percentage:
return None
if builder.mode_allowlist and "FULL_RUN" not in builder.mode_allowlist:
return None
# The majority of CQ builders will exclude something because we don't
# trigger most builders on changes to non-code directories (e.g. docs), so
# only consider them path-based if they have an include filter
if not include_path_based and location_filters_without_defaults(builder):
return None
trimmed = cq_pb.Verifiers.Tryjob.Builder(
name = builder.name,
disable_reuse = builder.disable_reuse,
)
if include_path_based:
trimmed.location_filters = builder.location_filters
return trimmed
def _trim_tryjob(tryjob, include_path_based):
builders = _remove_none([_trim_builder(b, include_path_based) for b in tryjob.builders])
if not builders:
return None
tryjob = proto.clone(tryjob)
tryjob.builders = builders
return tryjob
def _trim_verifiers(verifiers, include_path_based):
if not proto.has(verifiers, "tryjob"):
return None
tryjob = _trim_tryjob(verifiers.tryjob, include_path_based)
if not tryjob:
return None
return cq_pb.Verifiers(tryjob = tryjob)
def _trim_config_group(config_group, include_path_based):
verifiers = _trim_verifiers(config_group.verifiers, include_path_based)
if not verifiers:
return None
return cq_pb.ConfigGroup(
name = config_group.name,
verifiers = verifiers,
gerrit = config_group.gerrit,
)
def _generate_cq_usage(ctx):
cfg = ctx.output["luci/commit-queue.cfg"]
ctx.output["cq-usage/default.cfg"] = cq_pb.Config(config_groups = _remove_none(
[
_trim_config_group(g, include_path_based = False)
for g in cfg.config_groups
if g.name != fallback_cq.GROUP
],
))
ctx.output["cq-usage/full.cfg"] = cq_pb.Config(config_groups = _remove_none(
[
_trim_config_group(g, include_path_based = True)
for g in cfg.config_groups
if g.name != fallback_cq.GROUP
],
))
lucicfg.generator(_generate_cq_usage)