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libalpm: short circuit alpm_find_dbs_satisfier

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when a satisfying package is already installed, we always pick it
instead of prompting the user. So we can return that package as soon as
we find it, instead of waiting until we've iterated through all the
databases.

Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
morganamilo 2019-09-08 22:45:28 +01:00 • committed by Allan McRae
parent 0a295f3f39
commit f2442bc2e9
1 changed files with 7 additions and 8 deletions
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15
lib/libalpm/deps.c
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@ -719,20 +719,19 @@ static alpm_pkg_t *resolvedep(alpm_handle_t *handle, alpm_depend_t *dep,
}
_alpm_log(handle, ALPM_LOG_DEBUG, "provider found (%s provides %s)\n",
pkg->name, dep->name);
/* provide is already installed so return early instead of prompting later */
if(_alpm_db_get_pkgfromcache(handle->db_local, pkg->name)) {
alpm_list_free(providers);
return pkg;
}
providers = alpm_list_add(providers, pkg);
/* keep looking for other providers in the all dbs */
}
}
}
/* first check if one provider is already installed locally */
for(i = providers; i; i = i->next) {
alpm_pkg_t *pkg = i->data;
if(_alpm_db_get_pkgfromcache(handle->db_local, pkg->name)) {
alpm_list_free(providers);
return pkg;
}
}
count = alpm_list_count(providers);
if(count >= 1) {
alpm_question_select_provider_t question = {