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[pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
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813 changed files with 66015 additions and 58839 deletions
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@ -1,29 +1,25 @@
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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
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# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
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"""Monkey-patching to add multiprocessing support for coverage.py"""
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from __future__ import annotations
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import multiprocessing
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import multiprocessing.process
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import os
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import os.path
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import sys
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import traceback
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from typing import Any
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from coverage.debug import DebugControl
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# An attribute that will be set on the module to indicate that it has been
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# monkey-patched.
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PATCHED_MARKER = "_coverage$patched"
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PATCHED_MARKER = '_coverage$patched'
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OriginalProcess = multiprocessing.process.BaseProcess
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original_bootstrap = OriginalProcess._bootstrap # type: ignore[attr-defined]
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class ProcessWithCoverage(OriginalProcess): # pylint: disable=abstract-method
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"""A replacement for multiprocess.Process that starts coverage."""
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@ -37,12 +33,12 @@ class ProcessWithCoverage(OriginalProcess): # pylint: disable=abstract-m
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cov.start()
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_debug = cov._debug
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assert _debug is not None
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if _debug.should("multiproc"):
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if _debug.should('multiproc'):
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debug = _debug
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if debug:
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debug.write("Calling multiprocessing bootstrap")
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debug.write('Calling multiprocessing bootstrap')
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except Exception:
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print("Exception during multiprocessing bootstrap init:", file=sys.stderr)
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print('Exception during multiprocessing bootstrap init:', file=sys.stderr)
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traceback.print_exc(file=sys.stderr)
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sys.stderr.flush()
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raise
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@ -50,27 +46,29 @@ class ProcessWithCoverage(OriginalProcess): # pylint: disable=abstract-m
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return original_bootstrap(self, *args, **kwargs)
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finally:
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if debug:
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debug.write("Finished multiprocessing bootstrap")
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debug.write('Finished multiprocessing bootstrap')
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try:
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cov.stop()
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cov.save()
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except Exception as exc:
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if debug:
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debug.write("Exception during multiprocessing bootstrap cleanup", exc=exc)
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debug.write('Exception during multiprocessing bootstrap cleanup', exc=exc)
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raise
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if debug:
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debug.write("Saved multiprocessing data")
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debug.write('Saved multiprocessing data')
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class Stowaway:
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"""An object to pickle, so when it is unpickled, it can apply the monkey-patch."""
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def __init__(self, rcfile: str) -> None:
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self.rcfile = rcfile
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def __getstate__(self) -> dict[str, str]:
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return {"rcfile": self.rcfile}
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return {'rcfile': self.rcfile}
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def __setstate__(self, state: dict[str, str]) -> None:
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patch_multiprocessing(state["rcfile"])
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patch_multiprocessing(state['rcfile'])
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def patch_multiprocessing(rcfile: str) -> None:
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@ -90,7 +88,7 @@ def patch_multiprocessing(rcfile: str) -> None:
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# Set the value in ProcessWithCoverage that will be pickled into the child
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# process.
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os.environ["COVERAGE_RCFILE"] = os.path.abspath(rcfile)
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os.environ['COVERAGE_RCFILE'] = os.path.abspath(rcfile)
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# When spawning processes rather than forking them, we have no state in the
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# new process. We sneak in there with a Stowaway: we stuff one of our own
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@ -107,7 +105,7 @@ def patch_multiprocessing(rcfile: str) -> None:
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def get_preparation_data_with_stowaway(name: str) -> dict[str, Any]:
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"""Get the original preparation data, and also insert our stowaway."""
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d = original_get_preparation_data(name)
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d["stowaway"] = Stowaway(rcfile)
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d['stowaway'] = Stowaway(rcfile)
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return d
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spawn.get_preparation_data = get_preparation_data_with_stowaway
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