view tests/test-revlog.t @ 31018:cb5888c00410

obsolete: avoid using revset language to compute the obsolete revset

This is part of a refactoring that moves some phase query optimization from
revset.py to phases.py. See previous patches for the motivation.

Now we have APIs in phasecache to get the non-public set efficiently, let's
use it directly instead of going through the "not public()" revset language
in "obsolete()" computation.

This patch was meaured using:

  for i in 'public()' 'not public()' 'draft()' 'not draft()'; do
      hg perfrevset "$i"; hg perfrevset "$i" --hidden;
  done

and no noticeable (> 1%) performance difference was observed.

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.mpatch.)?mpatchError: patch cannot be decoded (re)