sapling/hgext/ownercheck.py
Kostia Balytskyi e75b9fc1b1 fb-hgext: move most of hgext3rd and related tests to core
Summary:
This commit moves most of the stuff in hgext3rd and related tests to
hg-crew/hgext and hg-crew/test respectively.

The things that are not moved are the ones which require some more complex
imports.


Depends on D6675309

Test Plan: - tests are failing at this commit, fixes are in the following commits

Reviewers: #sourcecontrol

Differential Revision: https://phabricator.intern.facebook.com/D6675329
2018-01-09 03:03:59 -08:00

71 lines
2.0 KiB
Python

# ownercheck.py - prevent operations on repos not owned
#
# Copyright 2016 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""prevent operations on repos not owned by the current user
This extension checks the ownership of the local repo path (or its parent if
the path does not exist) and aborts if it does not match the current user.
This prevents some common mistakes like using sudo to clone a repo.
"""
import os
from mercurial import (
error,
extensions,
localrepo,
)
from mercurial.i18n import _
try:
import pwd
except ImportError:
pwd = None
def _getowner(path):
"""find uid of a path or its parents. return (uid, path)"""
path = os.path.abspath(path or '')
while True:
try:
stat = os.stat(path)
return stat.st_uid, path
except Exception:
parent = os.path.dirname(path)
if parent == path:
break
path = parent
return None, None
def _describeuser(uid):
"""convert uid to username if possible"""
if pwd:
try:
return pwd.getpwuid(uid).pw_name
except Exception:
pass
return 'user %d' % uid
def _checkownedpath(path):
ownerid, path = _getowner(path)
uid = os.getuid()
# allow access to public places owned by root (ex. /tmp)
if ownerid in [None, 0, uid]:
return
raise error.Abort(_('%s is owned by %s, not you (%s).\n'
'you are likely doing something wrong.')
% (path, _describeuser(ownerid), _describeuser(uid)),
hint=_('you can skip the check using '
'--config extensions.ownercheck=!'))
def _localrepoinit(orig, self, baseui, path=None, create=False):
_checkownedpath(path)
return orig(self, baseui, path, create)
def uisetup(ui):
extensions.wrapfunction(localrepo.localrepository,
'__init__', _localrepoinit)