upstream/mercurial-mirror Files · tests/test-revlog.t

log: fix crash on empty revision with --copies switch...

log: fix crash on empty revision with --copies switch If a revset is empty, .max() raises ValueError. I don't see any reason to recompute the revs, so I made it reuse the one returned by logcmdutil.getrevs(). If no revs specified by command line, the endrev will be smartset.spanset(repo) + 1, which is basically the same as len(repo), the default of getrenamedfn(). If --follow specified, revs.max() points to the working parent, which seems more correct.

Gregory Szorc - - Load All Authors

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             test-revlog.t
        
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        $ 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')

        $ 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')

        $ 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')

        $ hg log

        abort: unknown version (2) in revlog 00changelog.i!

        [255]

        $ cd ..

      Test for CVE-2016-3630

        $ hg init

        >>> open("a.i", "wb").write(

        ... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD

        ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA=="""

        ... .decode("base64").decode("zlib"))

        $ hg debugindex a.i

           rev linkrev nodeid       p1           p2

             0       2 99e0332bd498 000000000000 000000000000

             1       3 6674f57a23d8 99e0332bd498 000000000000

        $ hg debugdata a.i 1 2>&1 | egrep 'Error:.*decoded'

        (mercurial\.\w+\.mpatch\.)?mpatchError: patch cannot be decoded (re)

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				$ 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')

				$ 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')

				$ 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')

				$ hg log
				abort: unknown version (2) in revlog 00changelog.i!
				[255]

				$ cd ..

				Test for CVE-2016-3630

				$ hg init

				>>> open("a.i", "wb").write(
				... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD
				... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA=="""
				... .decode("base64").decode("zlib"))

				$ hg debugindex a.i
				rev linkrev nodeid p1 p2
				0 2 99e0332bd498 000000000000 000000000000
				1 3 6674f57a23d8 99e0332bd498 000000000000
				$ hg debugdata a.i 1 2>&1 \| egrep 'Error:.*decoded'
				(mercurial\.\w+\.mpatch\.)?mpatchError: patch cannot be decoded (re)