merge: use string_list_split() in add_strategies()

Call string_list_split() for cutting a space separated list into pieces
instead of reimplementing it based on struct strategy.  The attr member
of struct strategy was not used split_merge_strategies(); it was a pure
string operation.  Also be nice and clean up once we're done splitting;
the old code didn't bother freeing any of the allocated memory.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/merge.c b/builtin/merge.c
index b555a1bf9cd46ea57bcbe1c8d8b7ac146fe9f81c..6ec3126db1fe717dc089d84922557d91b3956886 100644 (file)
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -30,6 +30,7 @@
 #include "fmt-merge-msg.h"
 #include "gpg-interface.h"
 #include "sequencer.h"
+#include "string-list.h"
 
 #define DEFAULT_TWOHEAD (1<<0)
 #define DEFAULT_OCTOPUS (1<<1)
@@ -712,42 +713,17 @@ static int count_unmerged_entries(void)
        return ret;
 }
 
-static void split_merge_strategies(const char *string, struct strategy **list,
-                                  int *nr, int *alloc)
-{
-       char *p, *q, *buf;
-
-       if (!string)
-               return;
-
-       buf = xstrdup(string);
-       q = buf;
-       for (;;) {
-               p = strchr(q, ' ');
-               if (!p) {
-                       ALLOC_GROW(*list, *nr + 1, *alloc);
-                       (*list)[(*nr)++].name = xstrdup(q);
-                       free(buf);
-                       return;
-               } else {
-                       *p = '\0';
-                       ALLOC_GROW(*list, *nr + 1, *alloc);
-                       (*list)[(*nr)++].name = xstrdup(q);
-                       q = ++p;
-               }
-       }
-}
-
 static void add_strategies(const char *string, unsigned attr)
 {
-       struct strategy *list = NULL;
-       int list_alloc = 0, list_nr = 0, i;
-
-       memset(&list, 0, sizeof(list));
-       split_merge_strategies(string, &list, &list_nr, &list_alloc);
-       if (list) {
-               for (i = 0; i < list_nr; i++)
-                       append_strategy(get_strategy(list[i].name));
+       int i;
+
+       if (string) {
+               struct string_list list = STRING_LIST_INIT_DUP;
+               struct string_list_item *item;
+               string_list_split(&list, string, ' ', -1);
+               for_each_string_list_item(item, &list)
+                       append_strategy(get_strategy(item->string));
+               string_list_clear(&list, 0);
                return;
        }
        for (i = 0; i < ARRAY_SIZE(all_strategy); i++)