297 строки
11 KiB
Python
297 строки
11 KiB
Python
import sys
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import threading
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from PyQt4.QtCore import QObject, pyqtSignal as Signal, pyqtSlot as Slot, \
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QTimer
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from PyQt4.QtGui import QMessageBox
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from mozregression.bisector import Bisector, Bisection, NightlyHandler, \
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InboundHandler, IndexPromise
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from mozregression.errors import MozRegressionError
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from mozregression.dates import is_date_or_datetime
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from mozregression.approx_persist import ApproxPersistChooser
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from mozregui.build_runner import AbstractBuildRunner
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from mozregui.skip_chooser import SkipDialog
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from mozregui.log_report import log
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Bisection.EXCEPTION = -1 # new possible value of bisection end
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class GuiBisector(QObject, Bisector):
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started = Signal()
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finished = Signal(object, int)
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choose_next_build = Signal()
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step_started = Signal(object)
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step_build_found = Signal(object, object)
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step_testing = Signal(object, object)
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step_finished = Signal(object, str)
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handle_merge = Signal(object, str, str, str)
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def __init__(self, fetch_config, test_runner, download_manager,
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download_in_background=True):
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QObject.__init__(self)
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Bisector.__init__(self, fetch_config, test_runner, download_manager)
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self.bisection = None
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self.mid = None
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self.build_infos = None
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self._bisect_args = None
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self.error = None
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self._next_build_index = None
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self.download_in_background = download_in_background
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self.index_promise = None
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self._persist_files = ()
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self.should_stop = threading.Event()
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self.download_manager.download_finished.connect(
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self._build_dl_finished)
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self.test_runner.evaluate_finished.connect(self._evaluate_finished)
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def _finish_on_exception(self, bisection):
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self.error = sys.exc_info()
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self.finished.emit(bisection, Bisection.EXCEPTION)
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@Slot()
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def bisect(self):
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# this is a slot so it will be called in the thread
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self.started.emit()
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try:
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Bisector.bisect(self, *self._bisect_args)
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except MozRegressionError:
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self._finish_on_exception(None)
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@Slot()
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def bisect_further(self):
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assert self.bisection
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self.started.emit()
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handler = self.bisection.handler
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try:
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nhandler = InboundHandler(find_fix=self.bisection.handler.find_fix)
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Bisector.bisect(self, nhandler, handler.good_revision,
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handler.bad_revision)
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except MozRegressionError:
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self._finish_on_exception(None)
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@Slot()
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def check_merge(self):
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handler = self.bisection.handler
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try:
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result = handler.handle_merge()
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except MozRegressionError:
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self._finish_on_exception(None)
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return
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if result is None:
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self.bisection.no_more_merge = True
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else:
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self.handle_merge.emit(self.bisection, *result)
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def _bisect(self, handler, build_range):
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self.bisection = Bisection(handler, build_range,
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self.download_manager,
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self.test_runner,
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dl_in_background=False,
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approx_chooser=self.approx_chooser)
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self._bisect_next()
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@Slot()
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def _bisect_next(self):
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# this is executed in the working thread
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try:
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self.mid = mid = self.bisection.search_mid_point(
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interrupt=self.should_stop.is_set)
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except MozRegressionError:
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self._finish_on_exception(self.bisection)
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return
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except StopIteration:
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return
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# if our last answer was skip, and that the next build
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# to use is not chosen yet, ask to choose it.
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if (self._next_build_index is None and
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self.test_runner.verdict == 's' and
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len(self.bisection.build_range) > 3):
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self.choose_next_build.emit()
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return
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if self._next_build_index is not None:
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# here user asked for specific build (eg from choose_next_build)
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self.mid = mid = self._next_build_index
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# this will download build infos if required
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if self.bisection.build_range[mid] is False:
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# in case no build info is found, ask to choose again
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self.choose_next_build.emit()
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return
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self._next_build_index = None
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self.step_started.emit(self.bisection)
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result = self.bisection.init_handler(mid)
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if result != Bisection.RUNNING:
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self.finished.emit(self.bisection, result)
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else:
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self.build_infos = self.bisection.handler.build_range[mid]
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found, self.mid, self.build_infos, self._persist_files = \
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self.bisection._find_approx_build(self.mid, self.build_infos)
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if not found:
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self.download_manager.focus_download(self.build_infos)
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self.step_build_found.emit(self.bisection, self.build_infos)
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if found:
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# to continue the bisection, act as if it was downloaded
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self._build_dl_finished(None, self.build_infos.build_file)
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@Slot()
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def _evaluate(self):
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# this is called in the working thread, so installation does not
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# block the ui.
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# download in background, if desired and that last verdict was not
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# a skip.
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if self.download_in_background and self.test_runner.verdict != 's':
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self.index_promise = IndexPromise(
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self.mid,
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self.bisection._download_next_builds,
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args=(self._persist_files,)
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)
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# run the build evaluation
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self.bisection.evaluate(self.build_infos)
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# wait for the next index in the thread if any
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if self.index_promise:
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self.index_promise()
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# if there was an error, stop the possible downloads
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if self.test_runner.run_error:
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self.download_manager.cancel()
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self.download_manager.wait(raise_if_error=False)
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if not self.test_runner.run_error:
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self.step_testing.emit(self.bisection, self.build_infos)
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@Slot(object, str)
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def _build_dl_finished(self, dl, dest):
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# here we are not in the working thread, since the connection was
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# done in the constructor
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if not dest == self.build_infos.build_file:
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return
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if dl is not None and (dl.is_canceled() or dl.error()):
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# todo handle this
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return
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# call this in the thread
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QTimer.singleShot(0, self._evaluate)
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@Slot()
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def _evaluate_finished(self):
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# here we are not in the working thread, since the connection was
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# done in the constructor
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if self.index_promise:
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self.mid = self.index_promise()
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self.index_promise = None
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self.step_finished.emit(self.bisection, self.test_runner.verdict)
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result = self.bisection.handle_verdict(self.mid,
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self.test_runner.verdict)
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if result != Bisection.RUNNING:
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self.finished.emit(self.bisection, result)
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else:
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# call this in the thread
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QTimer.singleShot(0, self._bisect_next)
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class BisectRunner(AbstractBuildRunner):
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worker_class = GuiBisector
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def init_worker(self, fetch_config, options):
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AbstractBuildRunner.init_worker(self, fetch_config, options)
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self.worker.test_runner.evaluate_started.connect(self.evaluate)
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self.worker.finished.connect(self.bisection_finished)
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self.worker.handle_merge.connect(self.handle_merge)
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self.worker.choose_next_build.connect(self.choose_next_build)
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good, bad = options.pop('good'), options.pop('bad')
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if is_date_or_datetime(good) and is_date_or_datetime(bad) \
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and not fetch_config.should_use_taskcluster():
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handler = NightlyHandler(find_fix=options['find_fix'])
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else:
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handler = InboundHandler(find_fix=options['find_fix'])
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self.worker._bisect_args = (handler, good, bad)
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self.worker.download_in_background = \
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self.global_prefs['background_downloads']
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if self.global_prefs['approx_policy']:
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self.worker.approx_chooser = ApproxPersistChooser(7)
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return self.worker.bisect
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def stop(self, wait=True):
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if self.worker:
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self.worker.should_stop.set()
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AbstractBuildRunner.stop(self, wait=wait)
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@Slot(str)
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def evaluate(self, err_message):
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if self.stopped:
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self.test_runner.finish(None)
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return
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if err_message:
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QMessageBox.warning(
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self.mainwindow,
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"Launcher Error",
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("An error occured while starting the process, so the build"
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" will be skipped. Error message:<br><strong>%s</strong>"
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% err_message)
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)
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self.worker.test_runner.finish('s')
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@Slot(str)
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def set_verdict(self, verdict):
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self.worker.test_runner.finish(verdict)
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def open_evaluate_editor(self, open, index):
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if open:
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self.mainwindow.ui.report_view.openPersistentEditor(index)
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else:
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self.mainwindow.ui.report_view.closePersistentEditor(index)
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@Slot()
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def choose_next_build(self):
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dlg = SkipDialog(self.worker.bisection.build_range, self.mainwindow)
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index = dlg.choose_next_build()
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if index is None:
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self.stop()
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return
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self.worker._next_build_index = index
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QTimer.singleShot(0, self.worker._bisect_next)
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@Slot(object, int)
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def bisection_finished(self, bisection, resultcode):
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dialog = None
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if resultcode == Bisection.USER_EXIT:
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msg = "Bisection stopped."
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elif resultcode == Bisection.NO_DATA:
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msg = "Unable to find enough data to bisect."
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dialog = QMessageBox.warning
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elif resultcode == Bisection.EXCEPTION:
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msg = "Error: %s" % self.worker.error[1]
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dialog = QMessageBox.critical
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else:
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fetch_config = self.worker.fetch_config
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if fetch_config.can_go_inbound() and not \
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getattr(bisection, 'no_more_merge', False):
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if isinstance(bisection.handler, NightlyHandler):
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handler = bisection.handler
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fetch_config.set_repo(
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fetch_config.get_nightly_repo(handler.bad_date))
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QTimer.singleShot(0, self.worker.bisect_further)
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else:
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# check merge, try to bisect further
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QTimer.singleShot(0, self.worker.check_merge)
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return
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msg = "The bisection is done."
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if dialog:
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dialog(self.mainwindow, "End of the bisection", msg)
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else:
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log(msg)
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self.stop()
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@Slot(object, str, str, str)
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def handle_merge(self, bisection, branch, good_rev, bad_rev):
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self.worker.fetch_config.set_repo(str(branch))
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bisection.handler.good_revision = str(good_rev)
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bisection.handler.bad_revision = str(bad_rev)
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QTimer.singleShot(0, self.worker.bisect_further)
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