From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 19 Aug 2015 21:41:29 +0000 (-0700)
Subject: Merge branch 'mh/fast-import-optimize-current-from' into maint
X-Git-Tag: v2.5.1~13
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f9610bcae907a38636174a688c1aa89c63cc9c1a;p=thirdparty%2Fgit.git

Merge branch 'mh/fast-import-optimize-current-from' into maint

Often a fast-import stream builds a new commit on top of the
previous commit it built, and it often unconditionally emits a
"from" command to specify the first parent, which can be omitted in
such a case.  This caused fast-import to forget the tree of the
previous commit and then re-read it from scratch, which was
inefficient.  Optimize for this common case.

* mh/fast-import-optimize-current-from:
  fast-import: do less work when given "from" matches current branch head
---

f9610bcae907a38636174a688c1aa89c63cc9c1a