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split-index: add {add,remove}_split_index() functions

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Also use the functions in cmd_update_index() in
builtin/update-index.c.

These functions will be used in a following commit to tweak
our use of the split-index feature depending on the setting
of a configuration variable.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Christian Couder 2017-02-27 19:00:01 +01:00 committed by Junio C Hamano
parent 1f44b09b58
commit cef4fc7ebe
3 changed files with 30 additions and 12 deletions
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18
builtin/update-index.c
View File

@ -1099,18 +1099,12 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
}
if (split_index > 0) {
init_split_index(&the_index);
the_index.cache_changed |= SPLIT_INDEX_ORDERED;
} else if (!split_index && the_index.split_index) {
/*
* can't discard_split_index(&the_index); because that
* will destroy split_index->base->cache[], which may
* be shared with the_index.cache[]. So yeah we're
* leaking a bit here.
*/
the_index.split_index = NULL;
the_index.cache_changed |= SOMETHING_CHANGED;
}
if (the_index.split_index)
the_index.cache_changed |= SPLIT_INDEX_ORDERED;
else
add_split_index(&the_index);
} else if (!split_index)
remove_split_index(&the_index);
switch (untracked_cache) {
case UC_UNSPECIFIED:

22
split-index.c
View File

@ -317,3 +317,25 @@ void replace_index_entry_in_base(struct index_state *istate,
istate->split_index->base->cache[new->index - 1] = new;
}
}
void add_split_index(struct index_state *istate)
{
if (!istate->split_index) {
init_split_index(istate);
istate->cache_changed |= SPLIT_INDEX_ORDERED;
}
}
void remove_split_index(struct index_state *istate)
{
if (istate->split_index) {
/*
* can't discard_split_index(&the_index); because that
* will destroy split_index->base->cache[], which may
* be shared with the_index.cache[]. So yeah we're
* leaking a bit here.
*/
istate->split_index = NULL;
istate->cache_changed |= SOMETHING_CHANGED;
}
}

2
split-index.h
View File

@ -31,5 +31,7 @@ void merge_base_index(struct index_state *istate);
void prepare_to_write_split_index(struct index_state *istate);
void finish_writing_split_index(struct index_state *istate);
void discard_split_index(struct index_state *istate);
void add_split_index(struct index_state *istate);
void remove_split_index(struct index_state *istate);
#endif