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http-push: use an argv_array for setup_revisions

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This drops the magic number for the fixed-size argv arrays,
so we do not have to wonder if we are overflowing it. We can
also drop some confusing sha1_to_hex memory allocation
(which seems to predate the ring of buffers allowing
multiple calls), and get rid of an unchecked sprintf call.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-09-24 17:07:56 -04:00 committed by Junio C Hamano
parent 984a43b902
commit a0355f6bcd
1 changed files with 10 additions and 22 deletions
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32
http-push.c
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@ -10,6 +10,7 @@
#include "remote.h"
#include "list-objects.h"
#include "sigchain.h"
#include "argv-array.h"
#ifdef EXPAT_NEEDS_XMLPARSE_H
#include <xmlparse.h>
@ -1856,9 +1857,7 @@ int main(int argc, char **argv)
new_refs = 0;
for (ref = remote_refs; ref; ref = ref->next) {
char old_hex[60], *new_hex;
const char *commit_argv[5];
int commit_argc;
char *new_sha1_hex, *old_sha1_hex;
struct argv_array commit_argv = ARGV_ARRAY_INIT;
if (!ref->peer_ref)
continue;
@ -1937,27 +1936,15 @@ int main(int argc, char **argv)
}
/* Set up revision info for this refspec */
commit_argc = 3;
new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
old_sha1_hex = NULL;
commit_argv[1] = "--objects";
commit_argv[2] = new_sha1_hex;
if (!push_all && !is_null_sha1(ref->old_sha1)) {
old_sha1_hex = xmalloc(42);
sprintf(old_sha1_hex, "^%s",
sha1_to_hex(ref->old_sha1));
commit_argv[3] = old_sha1_hex;
commit_argc++;
}
commit_argv[commit_argc] = NULL;
argv_array_push(&commit_argv, ""); /* ignored */
argv_array_push(&commit_argv, "--objects");
argv_array_push(&commit_argv, sha1_to_hex(ref->new_sha1));
if (!push_all && !is_null_sha1(ref->old_sha1))
argv_array_pushf(&commit_argv, "^%s",
sha1_to_hex(ref->old_sha1));
init_revisions(&revs, setup_git_directory());
setup_revisions(commit_argc, commit_argv, &revs, NULL);
setup_revisions(commit_argv.argc, commit_argv.argv, &revs, NULL);
revs.edge_hint = 0; /* just in case */
free(new_sha1_hex);
if (old_sha1_hex) {
free(old_sha1_hex);
commit_argv[1] = NULL;
}
/* Generate a list of objects that need to be pushed */
pushing = 0;
@ -1986,6 +1973,7 @@ int main(int argc, char **argv)
printf("%s %s\n", !rc ? "ok" : "error", ref->name);
unlock_remote(ref_lock);
check_locks();
argv_array_clear(&commit_argv);
}
/* Update remote server info if appropriate */