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repo-settings: parse core.untrackedCache

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The core.untrackedCache config setting is slightly complicated,
so clarify its use and centralize its parsing into the repo
settings.

The default value is "keep" (returned as -1), which persists the
untracked cache if it exists.

If the value is set as "false" (returned as 0), then remove the
untracked cache if it exists.

If the value is set as "true" (returned as 1), then write the
untracked cache and persist it.

Instead of relying on magic values of -1, 0, and 1, split these
options into an enum. This allows the use of "-1" as a
default value. After parsing the config options, if the value is
unset we can initialize it to UNTRACKED_CACHE_KEEP.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2019-08-13 11:37:46 -07:00
committed by Junio C Hamano
parent 31b1de6a09
commit ad0fb65999
5 changed files with 40 additions and 36 deletions
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19
read-cache.c
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@ -1845,18 +1845,17 @@ static void check_ce_order(struct index_state *istate)
static void tweak_untracked_cache(struct index_state *istate)
{
switch (git_config_get_untracked_cache()) {
case -1: /* keep: do nothing */
break;
case 0: /* false */
struct repository *r = the_repository;
prepare_repo_settings(r);
if (r->settings.core_untracked_cache == UNTRACKED_CACHE_REMOVE) {
remove_untracked_cache(istate);
break;
case 1: /* true */
add_untracked_cache(istate);
break;
default: /* unknown value: do nothing */
break;
return;
}
if (r->settings.core_untracked_cache == UNTRACKED_CACHE_WRITE)
add_untracked_cache(istate);
}
static void tweak_split_index(struct index_state *istate)