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# Copyright 2024 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import attrs
import itertools
from typing import Any
from google.protobuf import json_format
from PB.go.chromium.org.luci.buildbucket.proto import (
build as build_pb2,
builds_service as builds_service_pb2,
)
from PB.recipes.pigweed.multi_roller import Builder, InputProperties
DEPS = [
"fuchsia/buildbucket_util",
"fuchsia/gerrit",
"fuchsia/subbuild",
"recipe_engine/buildbucket",
"recipe_engine/json",
"recipe_engine/properties",
"recipe_engine/step",
"recipe_engine/time",
]
PROPERTIES = InputProperties
LABEL_STATUSES = ("rejected", "approved", "disliked", "recommended")
PRESUBMIT_VERIFIED_LABEL = "Presubmit-Verified"
DEFAULT_POLL_INTERVAL_SECONDS = 5 * 60
@attrs.define
class GerritChange:
host: str
change_id: str
@property
def name(self):
return f'{self.host}:{self.change_id}'
@property
def url(self):
return f'https://{self.host}-review.googlesource.com/q/{self.change_id}'
def RunSteps(api, props):
"""The multi_roller recipe launches and synchronizes multiple rollers.
The rollers to launch is specified via the input properties. The recipe
will use the subbuild recipe_module to launch the rollers. Once each roller
has created a roll CL, it will also output a property that exposes the
gerrit host and change-id of that roll CL. The rollers will then wait for a
Rolls-Synced label. Multi_roller watches over all the rollers and only sets
the Rolls-Synced label on each roll CL once all of the roll CLs pass
presubmit checks.
"""
# Launch each sub-roller.
with api.step.nest("Launching Rollers") as pres:
builders: list[str] = []
for builder_property in props.rollers_to_launch:
# TODO: b/245788264 - Support non-current project.
assert not builder_property.project
# TODO: b/245788264 - Support non-current bucket.
assert not builder_property.bucket
builders.append(builder_property.builder)
# Launch all sub-rollers with the same gerrit topic.
# Append the multi_roller's build id to the topic to make it unique.
launched_rollers: dict[str, api.subbuild.SubbuildResult] = (
api.subbuild.launch(
builders,
pres,
extra_properties={
"override_auto_roller_options": {
"push_options": [
f"topic=pigweed-s5400-roller-{api.buildbucket.build.id}"
]
}
},
)
)
roller_build_ids: list[int] = [
int(x.build_id) for x in launched_rollers.values()
]
# Calculate how often to poll gerrit and buildbucket.
props.poll_interval_secs = (
props.poll_interval_secs or DEFAULT_POLL_INTERVAL_SECONDS
)
# Wait for sub-rollers to output the change ID of their roll CLs.
roller_changes = get_roller_changes(api, props, roller_build_ids)
# Wait for roll CLs to pass presubmits.
presubmits_passed = wait_for_presubmit(api, props, roller_changes)
# Add Rolls-Synced label value on roll CLs.
roll_sync_label_value = 1 if presubmits_passed else -1
for change in roller_changes:
api.gerrit.set_review(
name=(
f"Set {props.rolls_synced_label} {roll_sync_label_value:+} "
f"on {change.change_id}"
),
change_id=change.change_id,
labels={props.rolls_synced_label: roll_sync_label_value},
host=change.host,
test_data=api.json.test_api.output({}),
)
# Raise failure if presubmits failed
if not presubmits_passed:
raise api.step.StepFailure("Some roller presubmits failed.")
def _build_url(build_id):
return f"https://ci.chromium.org/ui/b/{build_id}"
def get_roller_changes(api, props, build_ids: list[int]) -> list[GerritChange]:
"""Uses buildbucket api to check the output property of builds.
All sub-roller builds will output an output property that contains the host
and change ID of their roll CL.
Returns
A list of GerritChange objects corresponding to the sub-roller CLs.
"""
roller_changes: dict[str, list[GerritChange]] = {}
remaining_build_ids: list[str] = list(build_ids)
for i in itertools.count():
with api.step.nest(f"Get sub-roller change IDs ({i})") as pres:
roller_builds = api.buildbucket.get_multi(remaining_build_ids)
for build_id, build in roller_builds.items():
output_props = json_format.MessageToDict(
build.output.properties
)
if "gerrit_changes" in output_props:
with api.step.nest(
f"got changes for {build_id}"
) as change_pres:
change_pres.links[build_id] = _build_url(build_id)
for chg in output_props["gerrit_changes"]:
change = GerritChange(
host=chg["host"], change_id=chg["change_id"]
)
change_pres.links[change.name] = change.url
roller_changes.setdefault(build_id, [])
roller_changes[build_id].append(change)
remaining_build_ids.remove(build_id)
if not remaining_build_ids:
result = list(
itertools.chain.from_iterable(roller_changes.values())
)
pres.step_summary_text = f"Got all change ids: {result}"
return result
if _on_last_iteration(api, props.poll_interval_secs):
break
api.time.sleep(props.poll_interval_secs)
with api.step.nest("Failed to retrieve some change ids") as pres:
for build_id in remaining_build_ids:
pres.links[build_id] = _build_url(build_id)
pres.status = "FAILURE"
raise api.step.StepFailure("Failed to retrieve some change ids")
def wait_for_presubmit(api, props, roller_changes: list[GerritChange]):
"""Wait for all sub-roller roll CLs to pass presubmit checks.
Returns:
Whether or not all sub-roller CLs passed presubmits.
"""
success_status = {"approved"}
failure_status = set(LABEL_STATUSES) - success_status
remaining_rollers: list[GerritChange] = list(roller_changes)
for i in itertools.count():
with api.step.nest(
f"Wait for {PRESUBMIT_VERIFIED_LABEL} for roll CLs ({i})"
) as pres:
pres.step_summary_text = f"Waiting on {PRESUBMIT_VERIFIED_LABEL} for: {remaining_rollers}"
for change in list(remaining_rollers):
step = api.gerrit.change_details(
f"Get CL details for CL {change.change_id}",
change.change_id,
host=change.host,
)
details = step.json.output
# If the roll CL was manually abandoned or merged, stop waiting.
if details["status"] == "ABANDONED":
api.step.empty(
f"Roll CL {change.change_id} was manually abandoned."
)
return False
if details["status"] == "MERGED":
api.step.empty(
f"Roll CL {change.change_id} was manually merged."
)
remaining_rollers.remove(change)
continue
with api.step.nest(
f"Check CL {change.change_id}"
) as label_pres:
label_pres.step_summary_text = (
f"{PRESUBMIT_VERIFIED_LABEL} not set"
)
if PRESUBMIT_VERIFIED_LABEL not in details["labels"]:
label_pres.step_summary_text = (
"f{PRESUBMIT_VERIFIED_LABEL} does not exist"
)
return False
if failure_status.intersection(
details["labels"][PRESUBMIT_VERIFIED_LABEL]
):
label_pres.step_summary_text = "Presubmit checks failed"
return False
if success_status.intersection(
details["labels"][PRESUBMIT_VERIFIED_LABEL]
):
label_pres.step_summary_text = "Presubmit checks passed"
remaining_rollers.remove(change)
if not remaining_rollers:
pres.step_summary_text = (
f"All roll CLs have {PRESUBMIT_VERIFIED_LABEL}"
)
return True
# Don't sleep after the final check.
if _on_last_iteration(api, props.poll_interval_secs):
return False
api.time.sleep(props.poll_interval_secs)
def _on_last_iteration(api, poll_interval_secs):
return _secs_remaining_in_build(api) < poll_interval_secs * 3 // 2
def _secs_remaining_in_build(api):
current_time = api.time.time()
elapsed_time = current_time - api.buildbucket.build.start_time.seconds
return api.buildbucket.build.execution_timeout.seconds - elapsed_time
def GenTests(api):
def test(*args, **kwargs):
kwargs.setdefault("execution_timeout", 100)
return (
api.buildbucket_util.test(*args, **kwargs)
+ api.time.seed(0)
+ api.time.step(1)
)
def builder(name):
return Builder(project="", bucket="", builder=name)
def result_ci(name, id, status="SUCCESS", **kwargs):
return api.subbuild.ci_build_message(
builder=name,
build_id=id,
status=status,
**kwargs,
)
def properties(*builders, **kwargs):
props = InputProperties(**kwargs)
props.rollers_to_launch.extend(list(builders))
props.poll_interval_secs = 5
props.rolls_synced_label = "Rolls-Synced"
return api.properties(props)
def simulate_subroller_launch(builds, launch_step="Launching Rollers"):
responses = []
for build in builds:
responses.append(
dict(schedule_build=dict(id=build.id, builder=build.builder))
)
return api.buildbucket.simulated_schedule_output(
step_name=f"{launch_step}.schedule",
batch_response=builds_service_pb2.BatchResponse(
responses=responses
),
)
def simulate_get_multi(builds, launch_step):
return api.buildbucket.simulated_get_multi(
builds=builds,
step_name=f"{launch_step}.buildbucket.get_multi",
)
yield (
test("success with two sub-rollers")
+ properties(builder("roller-1"), builder("roller-2"))
+ simulate_subroller_launch(
builds=[
result_ci(name="roller-1", id=1000),
result_ci(name="roller-2", id=1001),
],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
),
result_ci(
name="roller-2",
id=1001,
# output property not set yet!
output_props={},
),
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-2",
id=1001,
output_props={
"gerrit_changes": [
{"host": "change_host_2", "change_id": "22222222"}
]
},
),
],
launch_step="Launching Rollers.Get sub-roller change IDs (1)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {
"Presubmit-Verified": {"approved": {}},
},
}
),
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 22222222",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {
# Presubmit-Verified label doesn't have a vote yet!
"Presubmit-Verified": {},
},
}
),
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (1).Get CL details for CL 22222222",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {
"Presubmit-Verified": {"approved": {}},
},
}
),
)
)
yield (
test("presubmit fails", status='FAILURE')
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
),
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {
"Presubmit-Verified": {"rejected": {}},
},
}
),
)
)
yield (
test("roll CL manually merged")
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
),
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "MERGED",
"labels": {
"Presubmit-Verified": {"approved": {}},
},
}
),
)
)
yield (
test("roll CL manually abandoned", status="FAILURE")
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
),
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "ABANDONED",
"labels": {
"Presubmit-Verified": {"approved": {}},
},
}
),
)
)
yield (
test("presubmit-verified label does not exist", status="FAILURE")
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
)
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {},
}
),
)
)
yield (
test("get change id timeout", execution_timeout=10, status="FAILURE")
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={},
)
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
)
yield (
test(
"check for presubmit-verified timeout",
execution_timeout=6,
status="FAILURE",
)
+ properties(builder("roller-1"))
+ simulate_subroller_launch(
builds=[result_ci(name="roller-1", id=1000)],
)
+ simulate_get_multi(
builds=[
result_ci(
name="roller-1",
id=1000,
output_props={
"gerrit_changes": [
{"host": "change_host_1", "change_id": "11111111"}
]
},
)
],
launch_step="Launching Rollers.Get sub-roller change IDs (0)",
)
+ api.step_data(
"Launching Rollers.Wait for Presubmit-Verified for roll CLs (0).Get CL details for CL 11111111",
api.json.output(
{
"current_revision": "abc",
"status": "NEW",
"labels": {
"Presubmit-Verified": {},
},
}
),
)
)