xbps-bin: implemented (WIP) "autoupdate" target.

Some parts in the library related to findings pkgs in repositories
has been improved vastly by caching the dictionary once.

Duplicated code has been added in xbps-bin/install.c, but will
be fixed soon.

--HG--
extra : convert_revision : 2924012a8589a2a6ecaa3863b5091049006c0ef3

lib/sortdeps.c

@@ -64,7 +64,7 @@ xbps_sort_pkg_deps(prop_dictionary_t chaindeps)
 	prop_object_t obj, obj2;
 	prop_object_iterator_t iter, iter2;
 	struct sorted_dependency *sdep;
-	size_t indirdepscnt = 0, dirdepscnt = 0, rundepscnt = 0, cnt = 0;
+	size_t ndeps = 0, rundepscnt = 0, cnt = 0;
 	const char *pkgname;
 	char *curpkgnamedep;
 	int rv = 0;
@@ -84,10 +84,7 @@ xbps_sort_pkg_deps(prop_dictionary_t chaindeps)
 		return 0;
 	}
 
-	prop_dictionary_get_uint32(chaindeps, "indirectdeps_count",
-	    &indirdepscnt);
-	prop_dictionary_get_uint32(chaindeps, "directdeps_count",
-	    &dirdepscnt);
+	ndeps = prop_array_count(unsorted);
 	unsorted = prop_dictionary_get(chaindeps, "unsorted_deps");
 
 	iter = prop_array_iterator(unsorted);
@@ -159,7 +156,7 @@ again:
 	}
 
 	/* Iterate until all deps are processed. */
-	if (cnt < dirdepscnt + indirdepscnt) {
+	if (cnt < ndeps) {
 		prop_object_iterator_reset(iter);
 		goto again;
 	}
@@ -179,14 +176,16 @@ again:
 	 * Sanity check that the array contains the same number of
 	 * objects than the total number of required dependencies.
 	 */
-	cnt = dirdepscnt + indirdepscnt;
-	if (cnt != prop_array_count(sorted)) {
+	if (ndeps != prop_array_count(sorted)) {
 		rv = EINVAL;
 		goto out;
 	}
 
 	if (!prop_dictionary_set(chaindeps, "packages", sorted))
 		rv = EINVAL;
+
+	prop_dictionary_remove(chaindeps, "unsorted_deps");
+
 out:
 	/*
 	 * Release resources used by temporary sorting.