18252174847

Committed 05 Oct 2025 01:36AM UTC coverage: 43.382% (-36.9%) from 80.261%

Build # 18252174847

Build Type

push

github

Committed by

web-flow

Commit Message

run tests on mac arm (#22717)

Just doing the minimal to pull forward the x86_64 pattern.

ref #20993

Run Details

25776 of 59416 relevant lines covered (43.38%)

1.3 hits per line

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73.91

/src/python/pants/pantsd/lock.py

# Copyright 2016 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).

import errno
import logging
import os
import sys

import psutil
from fasteners import InterProcessLock

from pants.util.dirutil import safe_delete

logger = logging.getLogger(__name__)


def print_to_stderr(message):
    print(message, file=sys.stderr)


class OwnerPrintingInterProcessFileLock(InterProcessLock):
    @property
    def message_path(self):
        return f"{self.path_str}.lock_message"

    @property
    def path_str(self):
        return self.path.decode()

    @property
    def missing_message_output(self):
        return f"Pid {os.getpid()} waiting for a file lock ({self.path_str}), but there was no message at {self.message_path} indicating who is holding it."

    def acquire(self, message_fn=print_to_stderr, **kwargs):
        logger.debug(f"acquiring lock: {self!r}")
        super().acquire(blocking=False)
        if not self.acquired:
            try:
                with open(self.message_path, "rb") as f:
                    message = f.read().decode("utf-8", "replace")
                    output = f"PID {os.getpid()} waiting for a file lock ({self.path_str}) held by: {message}"
            except OSError as e:
                if e.errno == errno.ENOENT:
                    output = self.missing_message_output
                else:
                    raise
            message_fn(output)
            super().acquire(**kwargs)

        if self.acquired:
            current_process = psutil.Process()
            cmd_line = " ".join(current_process.cmdline())
            message = f"{current_process.pid} ({cmd_line})"
            with open(self.message_path, "wb") as f:
                f.write(message.encode())

        return self.acquired

    def release(self):
        logger.debug(f"releasing lock: {self!r}")
        if self.acquired:
            safe_delete(self.message_path)
        return super().release()

1	# Copyright 2016 Pants project contributors (see CONTRIBUTORS.md).
2	# Licensed under the Apache License, Version 2.0 (see LICENSE).
3
4	import errno	3✔
5	import logging	3✔
6	import os	3✔
7	import sys	3✔
8
9	import psutil	3✔
10	from fasteners import InterProcessLock	3✔
11
12	from pants.util.dirutil import safe_delete	3✔
13
14	logger = logging.getLogger(__name__)	3✔
15
16
17	def print_to_stderr(message):	3✔
18	print(message, file=sys.stderr)	×
19
20
21	class OwnerPrintingInterProcessFileLock(InterProcessLock):	3✔
22	@property	3✔
23	def message_path(self):	3✔
24	return f"{self.path_str}.lock_message"	3✔
25
26	@property	3✔
27	def path_str(self):	3✔
28	return self.path.decode()	3✔
29
30	@property	3✔
31	def missing_message_output(self):	3✔
32	return f"Pid {os.getpid()} waiting for a file lock ({self.path_str}), but there was no message at {self.message_path} indicating who is holding it."	×
33
34	def acquire(self, message_fn=print_to_stderr, **kwargs):	3✔
35	logger.debug(f"acquiring lock: {self!r}")	3✔
36	super().acquire(blocking=False)	3✔
37	if not self.acquired:	3✔
38	try:	×
39	with open(self.message_path, "rb") as f:	×
40	message = f.read().decode("utf-8", "replace")	×
41	output = f"PID {os.getpid()} waiting for a file lock ({self.path_str}) held by: {message}"	×
42	except OSError as e:	×
43	if e.errno == errno.ENOENT:	×
44	output = self.missing_message_output	×
45	else:
46	raise	×
47	message_fn(output)	×
48	super().acquire(**kwargs)	×
49
50	if self.acquired:	3✔
51	current_process = psutil.Process()	3✔
52	cmd_line = " ".join(current_process.cmdline())	3✔
53	message = f"{current_process.pid} ({cmd_line})"	3✔
54	with open(self.message_path, "wb") as f:	3✔
55	f.write(message.encode())	3✔
56
57	return self.acquired	3✔
58
59	def release(self):	3✔
60	logger.debug(f"releasing lock: {self!r}")	3✔
61	if self.acquired:	3✔
62	safe_delete(self.message_path)	3✔
63	return super().release()	3✔

pantsbuild / pants / 18252174847

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