It's simpler to store the file names directly, and form the fast-export
arguments only when needed, and re-use the same strbuf with a format.
Signed-off-by: Felipe Contreras <felipe.contre...@gmail.com>
---
 transport-helper.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/transport-helper.c b/transport-helper.c
index b068ea5..2747f98 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -195,15 +195,9 @@ static struct child_process *get_helper(struct transport 
*transport)
                } else if (!strcmp(capname, "signed-tags")) {
                        data->signed_tags = 1;
                } else if (starts_with(capname, "export-marks ")) {
-                       struct strbuf arg = STRBUF_INIT;
-                       strbuf_addstr(&arg, "--export-marks=");
-                       strbuf_addstr(&arg, capname + strlen("export-marks "));
-                       data->export_marks = strbuf_detach(&arg, NULL);
+                       data->export_marks = xstrdup(capname + 
strlen("export-marks "));
                } else if (starts_with(capname, "import-marks")) {
-                       struct strbuf arg = STRBUF_INIT;
-                       strbuf_addstr(&arg, "--import-marks=");
-                       strbuf_addstr(&arg, capname + strlen("import-marks "));
-                       data->import_marks = strbuf_detach(&arg, NULL);
+                       data->import_marks = xstrdup(capname + 
strlen("import-marks "));
                } else if (starts_with(capname, "no-private-update")) {
                        data->no_private_update = 1;
                } else if (mandatory) {
@@ -429,6 +423,7 @@ static int get_exporter(struct transport *transport,
        struct child_process *helper = get_helper(transport);
        int argc = 0, i;
        memset(fastexport, 0, sizeof(*fastexport));
+       struct strbuf tmp = STRBUF_INIT;
 
        /* we need to duplicate helper->in because we want to use it after
         * fastexport is done with it. */
@@ -438,10 +433,14 @@ static int get_exporter(struct transport *transport,
        fastexport->argv[argc++] = "--use-done-feature";
        fastexport->argv[argc++] = data->signed_tags ?
                "--signed-tags=verbatim" : "--signed-tags=warn-strip";
-       if (data->export_marks)
-               fastexport->argv[argc++] = data->export_marks;
-       if (data->import_marks)
-               fastexport->argv[argc++] = data->import_marks;
+       if (data->export_marks) {
+               strbuf_addf(&tmp, "--export-marks=%s", data->export_marks);
+               fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
+       }
+       if (data->import_marks) {
+               strbuf_addf(&tmp, "--import-marks=%s", data->import_marks);
+               fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
+       }
 
        for (i = 0; i < revlist_args->nr; i++)
                fastexport->argv[argc++] = revlist_args->items[i].string;
-- 
1.9.1+fc3.9.gc73078e

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