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unpack-trees: add a note about path invalidation

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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 2018-08-13 18:14:26 +02:00 committed by Junio C Hamano
parent 340f4bc9f8
commit 383480ba4f
1 changed files with 11 additions and 0 deletions
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11
unpack-trees.c
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@ -1552,6 +1552,17 @@ static int verify_uptodate_sparse(const struct cache_entry *ce,
return verify_uptodate_1(ce, o, ERROR_SPARSE_NOT_UPTODATE_FILE);
}
/*
* TODO: We should actually invalidate o->result, not src_index [1].
* But since cache tree and untracked cache both are not copied to
* o->result until unpacking is complete, we invalidate them on
* src_index instead with the assumption that they will be copied to
* dst_index at the end.
*
* [1] src_index->cache_tree is also used in unpack_callback() so if
* we invalidate o->result, we need to update it to use
* o->result.cache_tree as well.
*/
static void invalidate_ce_path(const struct cache_entry *ce,
struct unpack_trees_options *o)
{