view tests/test-revlog.t @ 33154:4ecc6047d45f

log: add an extension hook-point in changeset_printer

Extensions sometimes wants to add other information in the default log output
format (when no templating is used).

Add an empty function named '_exthook' for easing the extension life.
Extensions will be able to wrap this function and collaborate to display
additional information.

Exthook is called after displaying troubles and just before displaying the
files, extra and description.

Add a new test file to test it and not pollute other test files.

  $ 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('\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('\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('\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", "w").write(
  ... """eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD
  ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA=="""
  ... .decode("base64").decode("zlib"))

  $ hg debugindex a.i
     rev    offset  length  delta linkrev nodeid       p1           p2
       0         0      19     -1       2 99e0332bd498 000000000000 000000000000
       1        19      12      0       3 6674f57a23d8 99e0332bd498 000000000000
  $ hg debugdata a.i 1 2>&1 | egrep 'Error:.*decoded'
  (mercurial\.\w+\.mpatch\.)?mpatchError: patch cannot be decoded (re)