Cleanup usages of alpm_list_find and alpm_list_remove.

* remove obsolete and unused *_cmp helper functions like deppkg_cmp and
_alpm_grp_cmp

* new alpm_list_remove_str function, used 6 times in handle.c

* remove _alpm_prov_cmp / _alpm_db_whatprovides and replace them by
a more general alpm_find_pkg_satisfiers with a cleaner implementation.
before: alpm_db_whatprovides(db, targ)
after: alpm_find_pkg_satisfiers(alpm_db_getpkgcache(db), targ)

* remove satisfycmp and replace alpm_list_find + satisfycmp usage by
_alpm_find_dep_satisfiers.
before : alpm_list_find(_alpm_db_get_pkgcache(db), dep, satisfycmp)
after : _alpm_find_dep_satisfiers(_alpm_db_get_pkgcache(db), dep)

* remove _alpm_pkgname_pkg_cmp, which was used with alpm_list_remove, and
use _alpm_pkg_find + alpm_list_remove with _alpm_pkg_cmp instead.

This commit actually get rids of all complicated and asymmetric _cmp
functions. I first thought these functions were worth it, be caused it
allowed us to reuse list_find and list_remove. But this was at the detriment
of the clarity and also the ease of use of these functions, dangerous
because of their asymmetricity.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 3 insertions, 9 deletions

diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index eabb2f3e..c39eae32 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -837,15 +837,9 @@ int _alpm_pkg_compare_versions(pmpkg_t *local_pkg, pmpkg_t *pkg)
  */
 int _alpm_pkg_cmp(const void *p1, const void *p2)
 {
-	pmpkg_t *pk1 = (pmpkg_t *)p1;
-	pmpkg_t *pk2 = (pmpkg_t *)p2;
-
-	return(strcmp(alpm_pkg_get_name(pk1), alpm_pkg_get_name(pk2)));
-}
-
-int _alpm_pkgname_pkg_cmp(const void *pkgname, const void *package)
-{
-	return(strcmp(alpm_pkg_get_name((pmpkg_t *) package), (char *) pkgname));
+	pmpkg_t *pkg1 = (pmpkg_t *)p1;
+	pmpkg_t *pkg2 = (pmpkg_t *)p2;
+	return(strcmp(alpm_pkg_get_name(pkg1), alpm_pkg_get_name(pkg2)));
 }
 
 /* Test for existence of a package in a alpm_list_t*