basic: introduce test_strv_split_and_extend()

src/basic/strv.c

@@ -300,6 +300,24 @@ int strv_split_full(char ***t, const char *s, const char *separators, ExtractFla
         return (int) n;
 }
 
+int strv_split_and_extend_full(char ***t, const char *s, const char *separators, bool filter_duplicates, ExtractFlags flags) {
+        _cleanup_strv_free_ char **l = NULL;
+        int r;
+
+        assert(t);
+        assert(s);
+
+        r = strv_split_full(&l, s, separators, flags);
+        if (r < 0)
+                return r;
+
+        r = strv_extend_strv(t, l, filter_duplicates);
+        if (r < 0)
+                return r;
+
+        return (int) strv_length(*t);
+}
+
 int strv_split_colon_pairs(char ***t, const char *s) {
         _cleanup_strv_free_ char **l = NULL;
         size_t n = 0;

src/basic/strv.h

@@ -83,6 +83,9 @@ static inline char **strv_split(const char *s, const char *separators) {
         return ret;
 }
 
+int strv_split_and_extend_full(char ***t, const char *s, const char *separators, bool filter_duplicates, ExtractFlags flags);
+#define strv_split_and_extend(t, s, sep, dup) strv_split_and_extend_full(t, s, sep, dup, 0)
+
 int strv_split_newlines_full(char ***ret, const char *s, ExtractFlags flags);
 static inline char **strv_split_newlines(const char *s) {
         char **ret;