reset: reorder wildcard pathspec conditions

Rearrange conditions in method determining whether index expansion is
necessary when a pathspec is specified for `git reset`, placing less
expensive condition first. Additionally, add details & examples to related
code comments to help with readability.

Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Victoria Dye 2022-01-11 18:04:59 +00:00 committed by Junio C Hamano
parent bb01b26dec
commit 1624333ec1

View File

@ -204,10 +204,16 @@ static int pathspec_needs_expanded_index(const struct pathspec *pathspec)
/*
* Special case: if the pattern is a path inside the cone
* followed by only wildcards, the pattern cannot match
* partial sparse directories, so we don't expand the index.
* partial sparse directories, so we know we don't need to
* expand the index.
*
* Examples:
* - in-cone/foo***: doesn't need expanded index
* - not-in-cone/bar*: may need expanded index
* - **.c: may need expanded index
*/
if (path_in_cone_mode_sparse_checkout(item.original, &the_index) &&
strspn(item.original + item.nowildcard_len, "*") == item.len - item.nowildcard_len)
if (strspn(item.original + item.nowildcard_len, "*") == item.len - item.nowildcard_len &&
path_in_cone_mode_sparse_checkout(item.original, &the_index))
continue;
for (pos = 0; pos < active_nr; pos++) {