From b8590ed634babc060b35e2ad7a035347234d836a Mon Sep 17 00:00:00 2001 From: Xavier Chantry Date: Sun, 17 Oct 2010 00:52:13 +0200 Subject: alpm/dep: add alpm_find_dbs_satisfier This is a public interface for resolvedep. It looks nicer to expose it this way rather than through sync_target. This function can also be helpful for external tools as it should give good results close to how pacman select a package for satisfying a given dep. Signed-off-by: Xavier Chantry --- lib/libalpm/deps.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'lib/libalpm/deps.c') diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c index 28a51bcf..609200f3 100644 --- a/lib/libalpm/deps.c +++ b/lib/libalpm/deps.c @@ -494,6 +494,28 @@ void _alpm_recursedeps(pmdb_t *db, alpm_list_t *targs, int include_explicit) } } +/** Find a package satisfying a specified dependency. + * First look for a literal, going through each db one by one. Then look for + * providers. The first satisfier found is returned. + * The dependency can include versions with depmod operators. + * @param dbs an alpm_list_t* of pmdb_t where the satisfier will be searched + * @param depstring package or provision name, versioned or not + * @return a pmpkg_t* satisfying depstring + */ +pmpkg_t SYMEXPORT *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring) +{ + pmdepend_t *dep; + pmpkg_t *pkg; + + ASSERT(dbs, return(NULL)); + + dep = _alpm_splitdep(depstring); + ASSERT(dep, return(NULL)); + pkg = _alpm_resolvedep(dep, dbs, NULL, 1); + _alpm_dep_free(dep); + return(pkg); +} + /** * helper function for resolvedeps: search for dep satisfier in dbs * -- cgit v1.2.3-24-g4f1b