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584656dff3
Summary: Turned on the auto formatter. Ran `arc lint --apply-patches --take BLACK **/*.py`. Then run `arc lint` again so some other autofixers like spellchecker etc. looked at the code base. Manually accept the changes whenever they make sense, or use a workaround (ex. changing "dict()" to "dict constructor") where autofix is false positive. Disabled linters on files that are hard (i18n/polib.py) to fix, or less interesting to fix (hgsubversion tests), or cannot be fixed without breaking OSS build (FBPYTHON4). Conflicted linters (test-check-module-imports.t, part of test-check-code.t, test-check-pyflakes.t) are removed or disabled. Duplicated linters (test-check-pyflakes.t, test-check-pylint.t) are removed. An issue of the auto-formatter is lines are no longer guarnateed to be <= 80 chars. But that seems less important comparing with the benefit auto-formatter provides. As we're here, also remove test-check-py3-compat.t, as it is currently broken if `PYTHON3=/bin/python3` is set. Reviewed By: wez, phillco, simpkins, pkaush, singhsrb Differential Revision: D8173629 fbshipit-source-id: 90e248ae0c5e6eaadbe25520a6ee42d32005621b
83 lines
2.2 KiB
Python
83 lines
2.2 KiB
Python
# sigtrace.py
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#
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# Copyright 2017 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""sigtrace - dump stack and memory traces on signal
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By default, SIGUSR1 will make hg dump stacks of all threads and SIGUSR2 will
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dump memory traces. All traces are dumped to /tmp by default.
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Config::
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[sigtrace]
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signal = USR1
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memsignal = USR2
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pathformat = /tmp/trace-%(pid)s-%(time)s.log
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mempathformat = /tmp/memtrace-%(pid)s-%(time)s.log
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"""
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import os
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import signal
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import sys
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import time
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import traceback
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from mercurial import registrar
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pathformat = "/tmp/trace-%(pid)s-%(time)s.log"
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mempathformat = "/tmp/memtrace-%(pid)s-%(time)s.log"
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configtable = {}
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configitem = registrar.configitem(configtable)
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configitem("sigtrace", "pathformat", default=pathformat)
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configitem("sigtrace", "signal", default="USR1")
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configitem("sigtrace", "mempathformat", default=mempathformat)
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configitem("sigtrace", "memsignal", default="USR2")
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def printstacks(sig, currentframe):
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content = ""
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for tid, frame in sys._current_frames().iteritems():
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content += "Thread %s:\n%s\n" % (tid, "".join(traceback.format_stack(frame)))
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with open(pathformat % {"time": time.time(), "pid": os.getpid()}, "w") as f:
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f.write(content)
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memorytracker = []
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def printmemory(sig, currentframe):
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try:
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from pympler import muppy, summary
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muppy.get_objects
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except ImportError:
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return
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all_objects = muppy.get_objects()
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sum1 = summary.summarize(all_objects)
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path = mempathformat % {"time": time.time(), "pid": os.getpid()}
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with open(path, "w") as f:
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f.write("\n".join(summary.format_(sum1, limit=50, sort="#")))
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def uisetup(ui):
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global pathformat, mempathformat
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pathformat = ui.config("sigtrace", "pathformat")
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mempathformat = ui.config("sigtrace", "mempathformat")
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signame = ui.config("sigtrace", "signal")
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sig = getattr(signal, "SIG" + signame, None)
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if sig is not None:
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signal.signal(sig, printstacks)
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sig2name = ui.config("sigtrace", "memsignal")
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sig2 = getattr(signal, "SIG" + sig2name, None)
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if sig2:
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signal.signal(sig2, printmemory)
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