#include "tag.h"
#include "refs.h"
#include "pkt-line.h"
+#include "exec_cmd.h"
static const char send_pack_usage[] =
"git-send-pack [--all] [--exec=git-receive-pack] <remote> [<head>...]\n"
" --all and explicit <head> specification are mutually exclusive.";
static const char *exec = "git-receive-pack";
+static int verbose = 0;
static int send_all = 0;
static int force_update = 0;
+static int use_thin_pack = 0;
static int is_zero_sha1(const unsigned char *sha1)
{
static void exec_pack_objects(void)
{
static char *args[] = {
- "git-pack-objects",
+ "pack-objects",
"--stdout",
NULL
};
- execvp("git-pack-objects", args);
+ execv_git_cmd(args);
die("git-pack-objects exec failed (%s)", strerror(errno));
}
static void exec_rev_list(struct ref *refs)
{
+ struct ref *ref;
static char *args[1000];
- int i = 0;
+ int i = 0, j;
+
+ args[i++] = "rev-list"; /* 0 */
+ if (use_thin_pack) /* 1 */
+ args[i++] = "--objects-edge";
+ else
+ args[i++] = "--objects";
- args[i++] = "git-rev-list"; /* 0 */
- args[i++] = "--objects"; /* 1 */
- while (refs) {
- char *buf = malloc(100);
- if (i > 900)
+ /* First send the ones we care about most */
+ for (ref = refs; ref; ref = ref->next) {
+ if (900 < i)
die("git-rev-list environment overflow");
- if (!is_zero_sha1(refs->old_sha1) &&
- has_sha1_file(refs->old_sha1)) {
+ if (!is_zero_sha1(ref->new_sha1)) {
+ char *buf = malloc(100);
args[i++] = buf;
- snprintf(buf, 50, "^%s", sha1_to_hex(refs->old_sha1));
+ snprintf(buf, 50, "%s", sha1_to_hex(ref->new_sha1));
buf += 50;
+ if (!is_zero_sha1(ref->old_sha1) &&
+ has_sha1_file(ref->old_sha1)) {
+ args[i++] = buf;
+ snprintf(buf, 50, "^%s",
+ sha1_to_hex(ref->old_sha1));
+ }
}
- if (!is_zero_sha1(refs->new_sha1)) {
+ }
+
+ /* Then a handful of the remainder
+ * NEEDSWORK: we would be better off if used the newer ones first.
+ */
+ for (ref = refs, j = i + 16;
+ i < 900 && i < j && ref;
+ ref = ref->next) {
+ if (is_zero_sha1(ref->new_sha1) &&
+ !is_zero_sha1(ref->old_sha1) &&
+ has_sha1_file(ref->old_sha1)) {
+ char *buf = malloc(42);
args[i++] = buf;
- snprintf(buf, 50, "%s", sha1_to_hex(refs->new_sha1));
+ snprintf(buf, 42, "^%s", sha1_to_hex(ref->old_sha1));
}
- refs = refs->next;
}
args[i] = NULL;
- execvp("git-rev-list", args);
+ execv_git_cmd(args);
die("git-rev-list exec failed (%s)", strerror(errno));
}
/* Both new and old must be commit-ish and new is descendant of
* old. Otherwise we require --force.
*/
- o = deref_tag(parse_object(old_sha1));
+ o = deref_tag(parse_object(old_sha1), NULL, 0);
if (!o || o->type != commit_type)
return 0;
old = (struct commit *) o;
- o = deref_tag(parse_object(new_sha1));
+ o = deref_tag(parse_object(new_sha1), NULL, 0);
if (!o || o->type != commit_type)
return 0;
new = (struct commit *) o;
for_each_ref(one_local_ref);
}
+static int receive_status(int in)
+{
+ char line[1000];
+ int ret = 0;
+ int len = packet_read_line(in, line, sizeof(line));
+ if (len < 10 || memcmp(line, "unpack ", 7)) {
+ fprintf(stderr, "did not receive status back\n");
+ return -1;
+ }
+ if (memcmp(line, "unpack ok\n", 10)) {
+ fputs(line, stderr);
+ ret = -1;
+ }
+ while (1) {
+ len = packet_read_line(in, line, sizeof(line));
+ if (!len)
+ break;
+ if (len < 3 ||
+ (memcmp(line, "ok", 2) && memcmp(line, "ng", 2))) {
+ fprintf(stderr, "protocol error: %s\n", line);
+ ret = -1;
+ break;
+ }
+ if (!memcmp(line, "ok", 2))
+ continue;
+ fputs(line, stderr);
+ ret = -1;
+ }
+ return ret;
+}
+
static int send_pack(int in, int out, int nr_refspec, char **refspec)
{
struct ref *ref;
int new_refs;
+ int ret = 0;
+ int ask_for_status_report = 0;
+ int expect_status_report = 0;
/* No funny business with the matcher */
- remote_tail = get_remote_heads(in, &remote_refs, 0, NULL);
+ remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, 1);
get_local_heads();
+ /* Does the other end support the reporting? */
+ if (server_supports("report-status"))
+ ask_for_status_report = 1;
+
/* match them up */
if (!remote_tail)
remote_tail = &remote_refs;
if (match_refs(local_refs, remote_refs, &remote_tail,
nr_refspec, refspec, send_all))
return -1;
+
+ if (!remote_refs) {
+ fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
+ return 0;
+ }
+
/*
* Finally, tell the other end!
*/
if (!ref->peer_ref)
continue;
if (!memcmp(ref->old_sha1, ref->peer_ref->new_sha1, 20)) {
- fprintf(stderr, "'%s': up-to-date\n", ref->name);
+ if (verbose)
+ fprintf(stderr, "'%s': up-to-date\n", ref->name);
continue;
}
/* This part determines what can overwrite what.
* The rules are:
*
- * (0) you can always use --force.
+ * (0) you can always use --force or +A:B notation to
+ * selectively force individual ref pairs.
*
* (1) if the old thing does not exist, it is OK.
*
* descendant of old, it is OK.
*/
- if (!force_update && !is_zero_sha1(ref->old_sha1)) {
- if (!has_sha1_file(ref->old_sha1)) {
- error("remote '%s' object %s does not "
- "exist on local",
- ref->name, sha1_to_hex(ref->old_sha1));
- continue;
- }
- /* We assume that local is fsck-clean. Otherwise
- * you _could_ have a old tag which points at
- * something you do not have which may or may not
- * be a commit.
- */
- if (!ref_newer(ref->peer_ref->new_sha1,
+ if (!force_update &&
+ !is_zero_sha1(ref->old_sha1) &&
+ !ref->force) {
+ if (!has_sha1_file(ref->old_sha1) ||
+ !ref_newer(ref->peer_ref->new_sha1,
ref->old_sha1)) {
- error("remote ref '%s' is not a strict "
- "subset of local ref '%s'.", ref->name,
+ /* We do not have the remote ref, or
+ * we know that the remote ref is not
+ * an ancestor of what we are trying to
+ * push. Either way this can be losing
+ * commits at the remote end and likely
+ * we were not up to date to begin with.
+ */
+ error("remote '%s' is not a strict "
+ "subset of local ref '%s'. "
+ "maybe you are not up-to-date and "
+ "need to pull first?",
+ ref->name,
ref->peer_ref->name);
+ ret = -2;
continue;
}
}
memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
if (is_zero_sha1(ref->new_sha1)) {
error("cannot happen anymore");
+ ret = -3;
continue;
}
new_refs++;
strcpy(old_hex, sha1_to_hex(ref->old_sha1));
new_hex = sha1_to_hex(ref->new_sha1);
- packet_write(out, "%s %s %s", old_hex, new_hex, ref->name);
+
+ if (ask_for_status_report) {
+ packet_write(out, "%s %s %s%c%s",
+ old_hex, new_hex, ref->name, 0,
+ "report-status");
+ ask_for_status_report = 0;
+ expect_status_report = 1;
+ }
+ else
+ packet_write(out, "%s %s %s",
+ old_hex, new_hex, ref->name);
fprintf(stderr, "updating '%s'", ref->name);
if (strcmp(ref->name, ref->peer_ref->name))
fprintf(stderr, " using '%s'", ref->peer_ref->name);
if (new_refs)
pack_objects(out, remote_refs);
close(out);
- return 0;
+
+ if (expect_status_report) {
+ if (receive_status(in))
+ ret = -4;
+ }
+
+ if (!new_refs && ret == 0)
+ fprintf(stderr, "Everything up-to-date\n");
+ return ret;
}
int fd[2], ret;
pid_t pid;
+ setup_git_directory();
argv++;
for (i = 1; i < argc; i++, argv++) {
char *arg = *argv;
force_update = 1;
continue;
}
+ if (!strcmp(arg, "--verbose")) {
+ verbose = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--thin")) {
+ use_thin_pack = 1;
+ continue;
+ }
usage(send_pack_usage);
}
if (!dest) {