mozregression/gui/mozregui/bisection.py

321 строка
12 KiB
Python

import sys
import threading
from PySide6.QtCore import QObject, QTimer, Signal, Slot
from PySide6.QtWidgets import QMessageBox
from mozregression.approx_persist import ApproxPersistChooser
from mozregression.bisector import (
Bisection,
Bisector,
IndexPromise,
IntegrationHandler,
NightlyHandler,
)
from mozregression.config import DEFAULT_EXPAND
from mozregression.dates import is_date_or_datetime
from mozregression.errors import MozRegressionError
from mozregui.build_runner import AbstractBuildRunner
from mozregui.log_report import log
from mozregui.skip_chooser import SkipDialog
Bisection.EXCEPTION = -1 # new possible value of bisection end
class GuiBisector(QObject, Bisector):
started = Signal()
finished = Signal(object, int)
choose_next_build = Signal()
step_started = Signal(object)
step_build_found = Signal(object, object)
step_testing = Signal(object, object)
step_finished = Signal(object, str)
handle_merge = Signal(object, str, str, str)
def __init__(self, fetch_config, test_runner, download_manager, download_in_background=True):
super().__init__(
fetch_config=fetch_config,
test_runner=test_runner,
download_manager=download_manager,
dl_in_background=download_in_background,
)
self.bisection = None
self.mid = None
self.build_infos = None
self._bisect_args = None
self.error = None
self._next_build_index = None
self.download_in_background = download_in_background
self.index_promise = None
self._persist_files = ()
self.should_stop = threading.Event()
self.download_manager.download_finished.connect(self._build_dl_finished)
self.test_runner.evaluate_finished.connect(self._evaluate_finished)
def _finish_on_exception(self, bisection):
self.error = sys.exc_info()
self.finished.emit(bisection, Bisection.EXCEPTION)
@Slot()
def bisect(self):
# this is a slot so it will be called in the thread
self.started.emit()
try:
Bisector.bisect(self, *self._bisect_args)
except MozRegressionError:
self._finish_on_exception(None)
@Slot()
def bisect_further(self):
assert self.bisection
self.started.emit()
handler = self.bisection.handler
try:
nhandler = IntegrationHandler(find_fix=self.bisection.handler.find_fix)
Bisector.bisect(
self,
nhandler,
handler.good_revision,
handler.bad_revision,
expand=DEFAULT_EXPAND,
interrupt=self.should_stop.is_set,
)
except MozRegressionError:
self._finish_on_exception(None)
except StopIteration:
self.finished.emit(None, Bisection.USER_EXIT)
@Slot()
def check_merge(self):
handler = self.bisection.handler
try:
result = handler.handle_merge()
except MozRegressionError:
self._finish_on_exception(None)
return
if result is None:
self.bisection.no_more_merge = True
self.finished.emit(self.bisection, Bisection.FINISHED)
else:
self.handle_merge.emit(self.bisection, *result)
def _bisect(self, handler, build_range):
self.bisection = Bisection(
handler,
build_range,
self.download_manager,
self.test_runner,
dl_in_background=False,
approx_chooser=self.approx_chooser,
)
self._bisect_next()
@Slot()
def _bisect_next(self):
# this is executed in the working thread
if self.test_runner.verdict != "r":
try:
self.mid = self.bisection.search_mid_point(interrupt=self.should_stop.is_set)
except MozRegressionError:
self._finish_on_exception(self.bisection)
return
except StopIteration:
return
# if our last answer was skip, and that the next build
# to use is not chosen yet, ask to choose it.
if (
self._next_build_index is None
and self.test_runner.verdict == "s"
and len(self.bisection.build_range) > 3
):
self.choose_next_build.emit()
return
if self._next_build_index is not None:
# here user asked for specific build (eg from choose_next_build)
self.mid = self._next_build_index
# this will download build infos if required
if self.bisection.build_range[self.mid] is False:
# in case no build info is found, ask to choose again
self.choose_next_build.emit()
return
self._next_build_index = None
self.step_started.emit(self.bisection)
result = self.bisection.init_handler(self.mid)
if result != Bisection.RUNNING:
self.finished.emit(self.bisection, result)
else:
self.build_infos = self.bisection.handler.build_range[self.mid]
(
found,
self.mid,
self.build_infos,
self._persist_files,
) = self.bisection._find_approx_build(self.mid, self.build_infos)
if not found:
self.download_manager.focus_download(self.build_infos)
self.step_build_found.emit(self.bisection, self.build_infos)
if found:
# to continue the bisection, act as if it was downloaded
self._build_dl_finished(None, self.build_infos.build_file)
@Slot()
def _evaluate(self):
# this is called in the working thread, so installation does not
# block the ui.
# download in background, if desired and that last verdict was not
# a skip.
if self.download_in_background and self.test_runner.verdict != "s":
self.index_promise = IndexPromise(
self.mid,
self.bisection._download_next_builds,
args=(self._persist_files,),
)
# run the build evaluation
self.bisection.evaluate(self.build_infos)
# wait for the next index in the thread if any
if self.index_promise:
self.index_promise()
# if there was an error, stop the possible downloads
if self.test_runner.run_error:
self.download_manager.cancel()
self.download_manager.wait(raise_if_error=False)
if not self.test_runner.run_error:
self.step_testing.emit(self.bisection, self.build_infos)
@Slot(object, str)
def _build_dl_finished(self, dl, dest):
# here we are not in the working thread, since the connection was
# done in the constructor
if not dest == self.build_infos.build_file:
return
if dl is not None and (dl.is_canceled() or dl.error()):
# todo handle this
return
# call this in the thread
QTimer.singleShot(0, self._evaluate)
@Slot()
def _evaluate_finished(self):
# here we are not in the working thread, since the connection was
# done in the constructor
if self.index_promise:
self.mid = self.index_promise()
self.index_promise = None
self.step_finished.emit(self.bisection, self.test_runner.verdict)
result = self.bisection.handle_verdict(self.mid, self.test_runner.verdict)
if result != Bisection.RUNNING:
self.finished.emit(self.bisection, result)
else:
# call this in the thread
QTimer.singleShot(0, self._bisect_next)
class BisectRunner(AbstractBuildRunner):
worker_class = GuiBisector
def init_worker(self, fetch_config, options):
AbstractBuildRunner.init_worker(self, fetch_config, options)
self.worker.test_runner.evaluate_started.connect(self.evaluate)
self.worker.finished.connect(self.bisection_finished)
self.worker.handle_merge.connect(self.handle_merge)
self.worker.choose_next_build.connect(self.choose_next_build)
good, bad = options.get("good"), options.get("bad")
if (
is_date_or_datetime(good)
and is_date_or_datetime(bad)
and fetch_config.should_use_archive()
):
handler = NightlyHandler(find_fix=options["find_fix"])
else:
handler = IntegrationHandler(find_fix=options["find_fix"])
self.worker._bisect_args = (handler, good, bad)
self.worker.download_in_background = self.global_prefs["background_downloads"]
if self.global_prefs["approx_policy"]:
self.worker.approx_chooser = ApproxPersistChooser(7)
return self.worker.bisect
def stop(self, wait=True):
if self.worker:
self.worker.should_stop.set()
AbstractBuildRunner.stop(self, wait=wait)
@Slot(str)
def evaluate(self, err_message):
if self.stopped:
self.test_runner.finish(None)
return
if err_message:
QMessageBox.warning(
self.mainwindow,
"Launcher Error",
(
"An error occured while starting the process, so the build"
" will be skipped. Error message:<br><strong>%s</strong>" % err_message
),
)
self.worker.test_runner.finish("s")
@Slot(str)
def set_verdict(self, verdict):
self.worker.test_runner.finish(verdict)
def open_evaluate_editor(self, open, index):
if open:
self.mainwindow.ui.report_view.openPersistentEditor(index)
else:
self.mainwindow.ui.report_view.closePersistentEditor(index)
@Slot()
def choose_next_build(self):
dlg = SkipDialog(self.worker.bisection.build_range, self.mainwindow)
index = dlg.choose_next_build()
if index is None:
self.stop()
return
self.worker._next_build_index = index
QTimer.singleShot(0, self.worker._bisect_next)
@Slot(object, int)
def bisection_finished(self, bisection, resultcode):
dialog = None
if resultcode == Bisection.USER_EXIT:
msg = "Bisection stopped."
elif resultcode == Bisection.NO_DATA:
msg = "Unable to find enough data to bisect."
dialog = QMessageBox.warning
elif resultcode == Bisection.EXCEPTION:
msg = "Error: %s" % self.worker.error[1]
dialog = QMessageBox.critical
else:
fetch_config = self.worker.fetch_config
if fetch_config.can_go_integration() and not getattr(bisection, "no_more_merge", False):
if isinstance(bisection.handler, NightlyHandler):
handler = bisection.handler
fetch_config.set_repo(fetch_config.get_nightly_repo(handler.bad_date))
QTimer.singleShot(0, self.worker.bisect_further)
else:
# check merge, try to bisect further
QTimer.singleShot(0, self.worker.check_merge)
return
msg = "The bisection is done."
if dialog:
dialog(self.mainwindow, "End of the bisection", msg)
else:
log(msg)
self.stop()
@Slot(object, str, str, str)
def handle_merge(self, bisection, branch, good_rev, bad_rev):
self.worker.fetch_config.set_repo(str(branch))
bisection.handler.good_revision = str(good_rev)
bisection.handler.bad_revision = str(bad_rev)
QTimer.singleShot(0, self.worker.bisect_further)