view tests/test-dirstate-race.t @ 18728:1e636f7b1cfe stable

largefiles: simplify cachelfiles - don't spend a lot of time checking hashes

cachelfiles jumped through loops to handle merges and modified files ... but it
did apparently no longer have a valid reason to do so. It should just always
make sure that the largefiles referenced from the standins are present - no
matter which actual largefile is stored in the working directory. If there is
no standin then there is nothing to fetch.

The old code usually verified the hash of all largefiles every time this
function was invoked - for examply by 'update'.

This change makes a trivial noop update 5-10 seconds faster on our repo (with
the other 50% spent doing another unnecessary hashing of all largefiles).

  $ 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