Junio C Hamano ccdc4ec304 diff/status: refactor opportunistic index update ...

When we had to refresh the index internally before running diff or status,
we opportunistically updated the $GIT_INDEX_FILE so that later invocation
of git can use the lstat(2) we already did in this invocation.

Make them share a helper function to do so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

2011-03-21 12:43:10 -07:00

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