wt-status: use argv_array API

No behavior change, but two slight code reorganization: argv_array_push
doesn't accept NULL strings, and duplicates its argument hence
summary_limit must be written to before being inserted into argv.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/wt-status.c b/wt-status.c
index cb24f1fa9b9f9632e5fd92bbcceb44008619fa14..958a53c9cb7d240734df5f8b2c41f99c03a66912 100644 (file)
--- a/wt-status.c
+++ b/wt-status.c
@@ -8,6 +8,7 @@
 #include "diffcore.h"
 #include "quote.h"
 #include "run-command.h"
+#include "argv-array.h"
 #include "remote.h"
 #include "refs.h"
 #include "submodule.h"
@@ -663,29 +664,30 @@ static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitt
        char summary_limit[64];
        char index[PATH_MAX];
        const char *env[] = { NULL, NULL };
-       const char *argv[8];
-
-       env[0] =        index;
-       argv[0] =       "submodule";
-       argv[1] =       "summary";
-       argv[2] =       uncommitted ? "--files" : "--cached";
-       argv[3] =       "--for-status";
-       argv[4] =       "--summary-limit";
-       argv[5] =       summary_limit;
-       argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
-       argv[7] =       NULL;
+       struct argv_array argv = ARGV_ARRAY_INIT;
 
        sprintf(summary_limit, "%d", s->submodule_summary);
        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 
+       env[0] = index;
+       argv_array_push(&argv, "submodule");
+       argv_array_push(&argv, "summary");
+       argv_array_push(&argv, uncommitted ? "--files" : "--cached");
+       argv_array_push(&argv, "--for-status");
+       argv_array_push(&argv, "--summary-limit");
+       argv_array_push(&argv, summary_limit);
+       if (!uncommitted)
+               argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
+
        memset(&sm_summary, 0, sizeof(sm_summary));
-       sm_summary.argv = argv;
+       sm_summary.argv = argv.argv;
        sm_summary.env = env;
        sm_summary.git_cmd = 1;
        sm_summary.no_stdin = 1;
        fflush(s->fp);
        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
        run_command(&sm_summary);
+       argv_array_clear(&argv);
 }
 
 static void wt_status_print_other(struct wt_status *s,