From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 4 Dec 2015 19:19:10 +0000 (-0800)
Subject: Merge branch 'jk/filter-branch-no-index'
X-Git-Tag: v2.7.0-rc0~17
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/2e5adec97a65ce8c2c803b9e1cbb1c0d067e7e47

Merge branch 'jk/filter-branch-no-index'

Speed up filter-branch for cases where we only care about rewriting
commits, not tree data.

* jk/filter-branch-no-index:
filter-branch: skip index read/write when possible
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2e5adec97a65ce8c2c803b9e1cbb1c0d067e7e47