From: Derrick Stolee <dstolee@microsoft.com>
Date: Mon, 20 Aug 2018 18:24:30 +0000 (+0000)
Subject: commit-graph: not compatible with grafts
X-Git-Tag: v2.19.2~53^2~2
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/20fd6d57996e33c30b6bb030329523d0116f15ec?ds=inline;hp=20fd6d57996e33c30b6bb030329523d0116f15ec

commit-graph: not compatible with grafts

Augment commit_graph_compatible(r) to return false when the given
repository r has commit grafts or is a shallow clone. Test that in these
situations we ignore existing commit-graph files and we do not write new
commit-graph files.

Helped-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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