demandimport: fix a crash in LazyFinder.__delattr__
I was tinkering with `with hgdemandimport.deactivated()` wrapped around loading
the keyring module, and got spew that seemed to be confirmed by PyCharm. But I
can't believe we haven't seen this before (and phabricator uses the same
pattern):
** Unknown exception encountered with possibly-broken third-party extension "mercurial_keyring" 1.4.3 (keyring 23.11.0, backend unknown)
** which supports versions unknown of Mercurial.
** Please disable "mercurial_keyring" and try your action again.
** If that fixes the bug please report it to https://foss.heptapod.net/mercurial/mercurial_keyring/issues
** Python 3.9.15 (main, Oct 13 2022, 04:28:25) [GCC 7.5.0]
** Mercurial Distributed SCM (version 6.3.1)
** Extensions loaded: absorb, attorc
20220315, blackbox, eol, extdiff, fastannotate, lfs, mercurial_keyring 1.4.3 (keyring 23.11.0, backend unknown), phabblocker
20220315, phabricator
20220315, purge, rebase, schemes, share, show, strip, uncommit
Traceback (most recent call last):
File "/usr/local/bin/hg", line 59, in <module>
dispatch.run()
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 143, in run
status = dispatch(req)
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 232, in dispatch
status = _rundispatch(req)
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 276, in _rundispatch
ret = _runcatch(req) or 0
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 451, in _runcatch
return _callcatch(ui, _runcatchfunc)
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 461, in _callcatch
return scmutil.callcatch(ui, func)
File "/usr/local/lib/python3.9/site-packages/mercurial/scmutil.py", line 153, in callcatch
return func()
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 441, in _runcatchfunc
return _dispatch(req)
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 1265, in _dispatch
return runcommand(
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 899, in runcommand
ret = _runcommand(ui, options, cmd, d)
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 1277, in _runcommand
return cmdfunc()
File "/usr/local/lib/python3.9/site-packages/mercurial/dispatch.py", line 1263, in <lambda>
d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
File "/usr/local/lib/python3.9/site-packages/mercurial/util.py", line 1880, in check
return func(*args, **kwargs)
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 962, in cmd_keyring_check
user, pwd, source, final_url = handler.get_credentials(
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 497, in get_credentials
keyring_pwd = password_store.get_http_password(keyring_url, actual_user)
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 287, in get_http_password
return self._read_password_from_keyring(
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 335, in _read_password_from_keyring
keyring = import_keyring()
>> `with hgdemandimport.deactivated()` inserted here
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 120, in import_keyring
return _import_keyring()
File "/root/mercurial_keyring/mercurial_keyring/mercurial_keyring.py", line 133, in _import_keyring
mod, was_imported_now = meu.direct_import_ext(
File "/usr/lib/python3.9/site-packages/mercurial_extension_utils.py", line 1381, in direct_import_ext
__import__(module_name)
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 46, in exec_module
self.loader.exec_module(module)
File "/usr/lib/python3.9/site-packages/keyring/__init__.py", line 1, in <module>
from .core import (
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 46, in exec_module
self.loader.exec_module(module)
File "/usr/lib/python3.9/site-packages/keyring/core.py", line 11, in <module>
from . import backend, credentials
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 46, in exec_module
self.loader.exec_module(module)
File "/usr/lib/python3.9/site-packages/keyring/backend.py", line 13, in <module>
from .py312compat import metadata
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 46, in exec_module
self.loader.exec_module(module)
File "/usr/lib/python3.9/site-packages/keyring/py312compat.py", line 10, in <module>
import importlib_metadata as metadata # type: ignore
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 46, in exec_module
self.loader.exec_module(module)
File "/usr/lib/python3.9/site-packages/importlib_metadata/__init__.py", line 715, in <module>
class MetadataPathFinder(NullFinder, DistributionFinder):
File "/usr/lib/python3.9/site-packages/importlib_metadata/_compat.py", line 24, in install
disable_stdlib_finder()
File "/usr/lib/python3.9/site-packages/importlib_metadata/_compat.py", line 43, in disable_stdlib_finder
del finder.find_distributions
File "/usr/local/lib/python3.9/site-packages/hgdemandimport/demandimportpy3.py", line 88, in __delattr__
return delattr(object.__getattribute__(self, "_finder"))
TypeError: delattr expected 2 arguments, got 1
#!/usr/bin/env python3
"""Generate release notes from our commit log.
This uses the relnotes extension directives when they're available,
and falls back to our old pre-relnotes logic that used to live in the
release-tools repo.
"""
import argparse
import re
import subprocess
rules = {
# keep
r"\(issue": 100,
r"\(BC\)": 100,
r"\(API\)": 100,
r"\(SEC\)": 100,
# core commands, bump up
r"(commit|files|log|pull|push|patch|status|tag|summary)(|s|es):": 20,
r"(annotate|alias|branch|bookmark|clone|graft|import|verify).*:": 20,
# extensions, bump up
r"(mq|shelve|rebase):": 20,
# newsy
r": deprecate": 20,
r": new.*(extension|flag|module)": 10,
r"( ability|command|feature|option|support)": 10,
# experimental
r"hg-experimental": 20,
r"(from|graduate).*experimental": 15,
r"(hide|mark).*experimental": -10,
# bug-like?
r"(fix|don't break|improve)": 7,
r"(not|n't|avoid|fix|prevent).*crash": 10,
r"vulnerab": 10,
# boring stuff, bump down
r"^contrib": -5,
r"debug": -5,
r"help": -5,
r"minor": -5,
r"(doc|metavar|bundle2|obsolete|obsmarker|rpm|setup|debug\S+:)": -15,
r"(check-code|check-commit|check-config|import-checker)": -20,
r"(flake8|lintian|pyflakes|pylint)": -20,
# cleanups and refactoring
r"(clean ?up|white ?space|spelling|quoting)": -20,
r"(flatten|dedent|indent|nesting|unnest)": -20,
r"(typo|hint|note|comment|TODO|FIXME)": -20,
r"(style:|convention|one-?liner)": -20,
r"(argument|absolute_import|attribute|assignment|mutable)": -15,
r"(scope|True|False)": -10,
r"(unused|useless|unnecessar|superfluous|duplicate|deprecated)": -10,
r"(redundant|pointless|confusing|uninitialized|meaningless|dead)": -10,
r": (drop|remove|delete|rip out)": -10,
r": (inherit|rename|simplify|naming|inline)": -10,
r"(correct doc|docstring|document .* method)": -20,
r"(abstract|factor|extract|prepare|split|replace| import)": -20,
r": add.*(function|method|implementation|example)": -10,
r": (move|extract) .* (to|into|from|out of)": -20,
r": implement ": -5,
r": use .* implementation": -20,
r": use .* instead of": -20,
# code
r"_": -10,
r"__": -5,
r"\(\)": -5,
r"\S\S\S+\.\S\S\S\S+": -5,
# dumb keywords
r"\S+/\S+:": -10,
r"\S+\.\S+:": -10,
# python compatibility
r"[Pp]y(|thon) ?[23]": -20,
r"pycompat": -20,
r"(coerce|convert|encode) .*to (byte|sys|)(s|str|string)": -20,
# tests
r"^test(|s|ing|runner|-\S+):": -20,
r"^(f|hghave|run-tests):": -20,
r"add.* tests?": -20,
r"(buildbot|fuzz|mock|ratchet)": -10,
# drop
r"^i18n-": -50,
r"^i18n:.*(hint|comment)": -50,
r"perf:": -50,
r"Added.*for changeset": -50,
r"^_": -50,
}
cutoff = 10
commits = []
groupings = [
(r"util|parsers|repo|ctx|context|revlog|filelog|alias|cmdutil", "core"),
(r"revset|template|ui|dirstate|hook|i18n|transaction|wire|vfs", "core"),
(r"dispatch|exchange|localrepo|streamclone|color|pager", "core"),
(r"hgweb|paper|coal|gitweb|monoblue|spartan", "hgweb"),
(r"pull|push|revert|resolve|annotate|bookmark|branch|clone", "commands"),
(r"commands|commit|config|files|graft|import|log|merge|patch", "commands"),
(r"phases|status|summary|amend|tag|help|verify", "commands"),
(r"rebase|mq|convert|eol|histedit|largefiles", "extensions"),
(r"shelve|unshelve", "extensions"),
]
def wikify(desc):
desc = desc.replace("(issue", "(Bts:issue")
desc = re.sub(r"\b([0-9a-f]{12})\b", r"Cset:\1", desc)
# stop ParseError from being recognized as a (nonexistent) wiki page
desc = re.sub(r" ([A-Z][a-z]+[A-Z][a-z]+)\b", r" !\1", desc)
# prevent wiki markup of magic methods
desc = re.sub(r"\b(\S*__\S*)\b", r"`\1`", desc)
return desc
def main():
desc = "example: %(prog)s 4.7.2 --stoprev 4.8rc0"
ap = argparse.ArgumentParser(description=desc)
ap.add_argument(
"startrev",
metavar="REV",
type=str,
help=(
"Starting revision for the release notes. This revision "
"won't be included, but later revisions will."
),
)
ap.add_argument(
"--stoprev",
metavar="REV",
type=str,
default="@",
help=(
"Stop revision for release notes. This revision will be included,"
" but no later revisions will. This revision needs to be "
"a descendant of startrev."
),
)
args = ap.parse_args()
fromext = subprocess.check_output(
[
"hg",
"--config",
"extensions.releasenotes=",
"releasenotes",
"-r",
"only(%s, %s)" % (args.stoprev, args.startrev),
]
).decode("utf-8")
# Find all release notes from un-relnotes-flagged commits.
for entry in sorted(
subprocess.check_output(
[
"hg",
"log",
"-r",
"only(%s, %s) - merge()" % (args.stoprev, args.startrev),
"-T",
r"{desc|firstline}\n",
]
)
.decode("utf-8")
.splitlines()
):
desc = entry.replace("`", "'")
score = 0
for rule, val in rules.items():
if re.search(rule, desc):
score += val
if score >= cutoff:
commits.append(wikify(desc))
# Group unflagged notes.
groups = {}
bcs = []
apis = []
for d in commits:
if "(BC)" in d:
bcs.append(d)
if "(API)" in d:
apis.append(d)
for rule, g in groupings:
if re.match(rule, d):
groups.setdefault(g, []).append(d)
break
else:
groups.setdefault("unsorted", []).append(d)
print(fromext)
# print legacy release notes sections
for g in sorted(groups):
print("\n=== %s ===" % g)
for d in sorted(groups[g]):
print(" * %s" % d)
if bcs:
print("\n=== Behavior Changes ===\n")
for d in sorted(bcs):
print(" * %s" % d)
if apis:
print("\n=== Internal API Changes ===\n")
for d in sorted(apis):
print(" * %s" % d)
if __name__ == "__main__":
main()