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dirs: resolve fuzzer OOM situation by disallowing deep directory hierarchies...
dirs: resolve fuzzer OOM situation by disallowing deep directory hierarchies It seems like 2048 directories ought to be enough for any reasonable use of Mercurial? A previous version of this patch scanned for slashes before any allocations occurred. That approach is slower than this in the happy path, but much faster than this in the case that too many slashes are encountered. We may want to revisit it in the future using memchr() so it'll be well-optimized by the libc we're using. .. bc: Mercurial will now defend against OOMs by refusing to operate on paths with 2048 or more components. This means that _extremely_ deep path hierarchies will be rejected, but we anticipate nobody is using hierarchies this deep. Differential Revision: https://phab.mercurial-scm.org/D7411

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graphlog.py
125 lines | 3.3 KiB | text/x-python | PythonLexer
# ASCII graph log extension for Mercurial
#
# Copyright 2007 Joel Rosdahl <joel@rosdahl.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''command to view revision graphs from a shell (DEPRECATED)
The functionality of this extension has been include in core Mercurial
since version 2.3. Please use :hg:`log -G ...` instead.
This extension adds a --graph option to the incoming, outgoing and log
commands. When this options is given, an ASCII representation of the
revision graph is also shown.
'''
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import (
cmdutil,
commands,
registrar,
)
cmdtable = {}
command = registrar.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = b'ships-with-hg-core'
@command(
b'glog',
[
(
b'f',
b'follow',
None,
_(
b'follow changeset history, or file history across copies and renames'
),
),
(
b'',
b'follow-first',
None,
_(b'only follow the first parent of merge changesets (DEPRECATED)'),
),
(
b'd',
b'date',
b'',
_(b'show revisions matching date spec'),
_(b'DATE'),
),
(b'C', b'copies', None, _(b'show copied files')),
(
b'k',
b'keyword',
[],
_(b'do case-insensitive search for a given text'),
_(b'TEXT'),
),
(
b'r',
b'rev',
[],
_(b'show the specified revision or revset'),
_(b'REV'),
),
(
b'',
b'removed',
None,
_(b'include revisions where files were removed'),
),
(b'm', b'only-merges', None, _(b'show only merges (DEPRECATED)')),
(b'u', b'user', [], _(b'revisions committed by user'), _(b'USER')),
(
b'',
b'only-branch',
[],
_(
b'show only changesets within the given named branch (DEPRECATED)'
),
_(b'BRANCH'),
),
(
b'b',
b'branch',
[],
_(b'show changesets within the given named branch'),
_(b'BRANCH'),
),
(
b'P',
b'prune',
[],
_(b'do not display revision or any of its ancestors'),
_(b'REV'),
),
]
+ cmdutil.logopts
+ cmdutil.walkopts,
_(b'[OPTION]... [FILE]'),
helpcategory=command.CATEGORY_CHANGE_NAVIGATION,
inferrepo=True,
)
def glog(ui, repo, *pats, **opts):
"""show revision history alongside an ASCII revision graph
Print a revision history alongside a revision graph drawn with
ASCII characters.
Nodes printed as an @ character are parents of the working
directory.
This is an alias to :hg:`log -G`.
"""
opts['graph'] = True
return commands.log(ui, repo, *pats, **opts)