packaging: rename hgrc.d to defaultrc for Windows config files next to the exe
The code and the help still says that it will read hgrc.d next to the
executable. But this directory needs to exist to read the resource based config
files. Otherwise even `hg version` errors out:
$ /c/Program\ Files/Mercurial/hg.exe version
Traceback (most recent call last):
File "hg", line 43, in <module>
File "mercurial\dispatch.pyc", line 110, in run
File "mercurial\dispatch.pyc", line 226, in dispatch
File "mercurial\ui.pyc", line 308, in load
File "mercurial\rcutil.pyc", line 99, in rccomponents
File "mercurial\rcutil.pyc", line 69, in default_rc_resources
File "mercurial\utils\resourceutil.pyc", line 84, in contents
WindowsError: [Error 3] The system cannot find the path specified: 'c:\\Program Files\\mercurial\\defaultrc\\*.*'
Differential Revision: https://phab.mercurial-scm.org/D7981
$ hg init empty-repo
$ cd empty-repo
Flags on revlog version 0 are rejected
>>> with open('.hg/store/00changelog.i', 'wb') as fh:
... fh.write(b'\x00\x01\x00\x00') and None
$ hg log
abort: unknown flags (0x01) in version 0 revlog 00changelog.i!
[255]
Unknown flags on revlog version 1 are rejected
>>> with open('.hg/store/00changelog.i', 'wb') as fh:
... fh.write(b'\x00\x04\x00\x01') and None
$ hg log
abort: unknown flags (0x04) in version 1 revlog 00changelog.i!
[255]
Unknown version is rejected
>>> with open('.hg/store/00changelog.i', 'wb') as fh:
... fh.write(b'\x00\x00\x00\x02') and None
$ hg log
abort: unknown version (2) in revlog 00changelog.i!
[255]
$ cd ..
Test for CVE-2016-3630
$ hg init
>>> import codecs
>>> open("a.i", "wb").write(codecs.decode(codecs.decode(
... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD
... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA==""",
... "base64"), "zlib")) and None
$ hg debugrevlogindex a.i
rev linkrev nodeid p1 p2
0 2 99e0332bd498 000000000000 000000000000
1 3 6674f57a23d8 99e0332bd498 000000000000
>>> from mercurial import revlog, vfs
>>> tvfs = vfs.vfs(b'.')
>>> tvfs.options = {b'revlogv1': True}
>>> rl = revlog.revlog(tvfs, b'a.i')
>>> rl.revision(1)
mpatchError(*'patch cannot be decoded'*) (glob)