From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 9 Sep 2016 04:49:50 +0000 (-0700)
Subject: Merge branch 'sb/submodule-clone-rr'
X-Git-Tag: v2.11.0-rc0~172
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/02c6c14d6c304f094b680f583a1dd6e4fe75736c?hp=02c6c14d6c304f094b680f583a1dd6e4fe75736c

Merge branch 'sb/submodule-clone-rr'

"git clone --resurse-submodules --reference $path $URL" is a way to
reduce network transfer cost by borrowing objects in an existing
$path repository when cloning the superproject from $URL; it
learned to also peek into $path for presense of corresponding
repositories of submodules and borrow objects from there when able.

* sb/submodule-clone-rr:
clone: recursive and reference option triggers submodule alternates
clone: implement optional references
clone: clarify option_reference as required
clone: factor out checking for an alternate path
submodule--helper update-clone: allow multiple references
submodule--helper module-clone: allow multiple references
t7408: merge short tests, factor out testing method
t7408: modernize style
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