On Wed, Jan 6, 2016 at 4:50 PM, Mike McQuaid [off-list ref] wrote:

it’s also a big area where libgit2 was inconsistent with Git’s behaviour on either of those versions too.

Yeah.. it looks like libgit2's gitignore support was written new, not
imported from C Git, so behavior differences (especially in corner
cases) and even lack of some feature ("**" support comes to mind). For
isolated features like gitignore, perhaps we can have an option to
replace C Git code with libgit2 and therefore can test libgit2 against
C Git test suite. It could be a good start for libgit2 to invade C
Git. Not sure if anybody's interested in doing it though.
-- 
Duy