gpg-interface: use child_process.args

Our argv allocations are relatively straightforward, but
this avoids us having to manually keep the count up to date
(or create new to-be-replaced slots in the declaration) when
we add new arguments.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/gpg-interface.c b/gpg-interface.c
index c4b1e8c78d396194753d8a7287678bc476f858d6..0ed9fa75ff4d32eb7b359a14262e4a2d4c0523a8 100644 (file)
--- a/gpg-interface.c
+++ b/gpg-interface.c
@@ -150,17 +150,15 @@ const char *get_signing_key(void)
 int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key)
 {
        struct child_process gpg = CHILD_PROCESS_INIT;
-       const char *args[4];
        ssize_t len;
        size_t i, j, bottom;
 
-       gpg.argv = args;
        gpg.in = -1;
        gpg.out = -1;
-       args[0] = gpg_program;
-       args[1] = "-bsau";
-       args[2] = signing_key;
-       args[3] = NULL;
+       argv_array_pushl(&gpg.args,
+                        gpg_program,
+                        "-bsau", signing_key,
+                        NULL);
 
        if (start_command(&gpg))
                return error(_("could not run gpg."));
@@ -210,13 +208,11 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
                         struct strbuf *gpg_output, struct strbuf *gpg_status)
 {
        struct child_process gpg = CHILD_PROCESS_INIT;
-       const char *args_gpg[] = {NULL, "--status-fd=1", "--verify", "FILE", "-", NULL};
        char path[PATH_MAX];
        int fd, ret;
        struct strbuf buf = STRBUF_INIT;
        struct strbuf *pbuf = &buf;
 
-       args_gpg[0] = gpg_program;
        fd = git_mkstemp(path, PATH_MAX, ".git_vtag_tmpXXXXXX");
        if (fd < 0)
                return error_errno(_("could not create temporary file '%s'"), path);
@@ -224,12 +220,15 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
                return error_errno(_("failed writing detached signature to '%s'"), path);
        close(fd);
 
-       gpg.argv = args_gpg;
+       argv_array_pushl(&gpg.args,
+                        gpg_program,
+                        "--status-fd=1",
+                        "--verify", path, "-",
+                        NULL);
        gpg.in = -1;
        gpg.out = -1;
        if (gpg_output)
                gpg.err = -1;
-       args_gpg[3] = path;
        if (start_command(&gpg)) {
                unlink(path);
                return error(_("could not run gpg."));