view tests/test-dirstate-race.t @ 31751:2133437dad17

revlog: fix _cache usage in revision()

As documented at revlog.__init__, revlog._cache stores raw text.

The current read and write usage of "_cache" in revlog.revision lacks of
raw=True check.

This patch fixes that by adding check about raw, and storing rawtext
explicitly in _cache.

Note: it may slow down cache hit code path when raw=False and flags=0. That
performance issue will be fixed in a later patch.

test-revlog-raw now points us to a new problem.

  $ hg init
  $ echo a > a
  $ hg add a
  $ hg commit -m test

Do we ever miss a sub-second change?:

  $ for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
  >     hg co -qC 0
  >     echo b > a
  >     hg st
  > done
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a