repository: fix free problem with repo_clear(the_repository)

the_repository is special. One of the special things about it is that
it does not allocate a new index_state object like submodules but
points to the global the_index variable instead. As a global variable,
the_index cannot be free()'d.

Add an exception for this in repo_clear(). In the future perhaps we
would be able to allocate the_repository's index on heap too. Then we
can revert this.

the_repository->index remains pointed to a clean the_index even after
repo_clear() so that it could still be used next time (e.g. in a crazy
use case where a dev switches repo in the same process).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2018-05-10 08:13:10 +02:00 коммит произвёл Junio C Hamano
Родитель 3013dff866
Коммит 74373b5f10
1 изменённых файлов: 2 добавлений и 1 удалений

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@ -220,7 +220,8 @@ void repo_clear(struct repository *repo)
if (repo->index) {
discard_index(repo->index);
FREE_AND_NULL(repo->index);
if (repo->index != &the_index)
FREE_AND_NULL(repo->index);
}
}