unsigned fetch : 1,
import : 1,
option : 1,
- push : 1;
+ push : 1,
+ connect : 1,
+ no_disconnect_req : 1;
/* These go from remote name (as in "list") to private name */
struct refspec *refspecs;
int refspec_nr;
+ /* Transport options for fetch-pack/send-pack (should one of
+ * those be invoked).
+ */
+ struct git_transport_options transport_options;
};
static void sendline(struct helper_data *helper, struct strbuf *buffer)
die_errno("Full write to remote helper failed");
}
-static int recvline(struct helper_data *helper, struct strbuf *buffer)
+static int recvline_fh(FILE *helper, struct strbuf *buffer)
{
strbuf_reset(buffer);
if (debug)
fprintf(stderr, "Debug: Remote helper: Waiting...\n");
- if (strbuf_getline(buffer, helper->out, '\n') == EOF) {
+ if (strbuf_getline(buffer, helper, '\n') == EOF) {
if (debug)
fprintf(stderr, "Debug: Remote helper quit.\n");
exit(128);
return 0;
}
+static int recvline(struct helper_data *helper, struct strbuf *buffer)
+{
+ return recvline_fh(helper->out, buffer);
+}
+
static void xchgline(struct helper_data *helper, struct strbuf *buffer)
{
sendline(helper, buffer);
return url;
}
+static void do_take_over(struct transport *transport)
+{
+ struct helper_data *data;
+ data = (struct helper_data *)transport->data;
+ transport_take_over(transport, data->helper);
+ fclose(data->out);
+ free(data);
+}
+
static struct child_process *get_helper(struct transport *transport)
{
struct helper_data *data = transport->data;
const char **refspecs = NULL;
int refspec_nr = 0;
int refspec_alloc = 0;
+ int duped;
+ int code;
if (data->helper)
return data->helper;
helper->out = -1;
helper->err = 0;
helper->argv = xcalloc(4, sizeof(*helper->argv));
- strbuf_addf(&buf, "remote-%s", data->name);
+ strbuf_addf(&buf, "git-remote-%s", data->name);
helper->argv[0] = strbuf_detach(&buf, NULL);
helper->argv[1] = transport->remote->name;
helper->argv[2] = remove_ext_force(transport->url);
- helper->git_cmd = 1;
- if (start_command(helper))
- die("Unable to run helper: git %s", helper->argv[0]);
+ helper->git_cmd = 0;
+ helper->silent_exec_failure = 1;
+ code = start_command(helper);
+ if (code < 0 && errno == ENOENT)
+ die("Unable to find remote helper for '%s'", data->name);
+ else if (code != 0)
+ exit(code);
+
data->helper = helper;
+ data->no_disconnect_req = 0;
+
+ /*
+ * Open the output as FILE* so strbuf_getline() can be used.
+ * Do this with duped fd because fclose() will close the fd,
+ * and stuff like taking over will require the fd to remain.
+ */
+ duped = dup(helper->out);
+ if (duped < 0)
+ die_errno("Can't dup helper output fd");
+ data->out = xfdopen(duped, "r");
write_constant(helper->in, "capabilities\n");
- data->out = xfdopen(helper->out, "r");
while (1) {
const char *capname;
int mandatory = 0;
refspec_nr + 1,
refspec_alloc);
refspecs[refspec_nr++] = strdup(buf.buf + strlen("refspec "));
+ } else if (!strcmp(capname, "connect")) {
+ data->connect = 1;
} else if (mandatory) {
- die("Unknown madatory capability %s. This remote "
+ die("Unknown mandatory capability %s. This remote "
"helper probably needs newer version of Git.\n",
capname);
}
if (data->helper) {
if (debug)
fprintf(stderr, "Debug: Disconnecting.\n");
- strbuf_addf(&buf, "\n");
- sendline(data, &buf);
+ if (!data->no_disconnect_req) {
+ strbuf_addf(&buf, "\n");
+ sendline(data, &buf);
+ }
close(data->helper->in);
+ close(data->helper->out);
fclose(data->out);
finish_command(data->helper);
free((char *)data->helper->argv[0]);
char buf[16];
int n;
int v = t->verbose;
- int no_progress = v < 0 || (!t->progress && !isatty(1));
+ int no_progress = v < 0 || (!t->progress && !isatty(2));
set_helper_option(t, "progress", !no_progress ? "true" : "false");
return 0;
}
+static int process_connect_service(struct transport *transport,
+ const char *name, const char *exec)
+{
+ struct helper_data *data = transport->data;
+ struct strbuf cmdbuf = STRBUF_INIT;
+ struct child_process *helper;
+ int r, duped, ret = 0;
+ FILE *input;
+
+ helper = get_helper(transport);
+
+ /*
+ * Yes, dup the pipe another time, as we need unbuffered version
+ * of input pipe as FILE*. fclose() closes the underlying fd and
+ * stream buffering only can be changed before first I/O operation
+ * on it.
+ */
+ duped = dup(helper->out);
+ if (duped < 0)
+ die_errno("Can't dup helper output fd");
+ input = xfdopen(duped, "r");
+ setvbuf(input, NULL, _IONBF, 0);
+
+ /*
+ * Handle --upload-pack and friends. This is fire and forget...
+ * just warn if it fails.
+ */
+ if (strcmp(name, exec)) {
+ r = set_helper_option(transport, "servpath", exec);
+ if (r > 0)
+ warning("Setting remote service path not supported by protocol.");
+ else if (r < 0)
+ warning("Invalid remote service path.");
+ }
+
+ if (data->connect)
+ strbuf_addf(&cmdbuf, "connect %s\n", name);
+ else
+ goto exit;
+
+ sendline(data, &cmdbuf);
+ recvline_fh(input, &cmdbuf);
+ if (!strcmp(cmdbuf.buf, "")) {
+ data->no_disconnect_req = 1;
+ if (debug)
+ fprintf(stderr, "Debug: Smart transport connection "
+ "ready.\n");
+ ret = 1;
+ } else if (!strcmp(cmdbuf.buf, "fallback")) {
+ if (debug)
+ fprintf(stderr, "Debug: Falling back to dumb "
+ "transport.\n");
+ } else
+ die("Unknown response to connect: %s",
+ cmdbuf.buf);
+
+exit:
+ fclose(input);
+ return ret;
+}
+
+static int process_connect(struct transport *transport,
+ int for_push)
+{
+ struct helper_data *data = transport->data;
+ const char *name;
+ const char *exec;
+
+ name = for_push ? "git-receive-pack" : "git-upload-pack";
+ if (for_push)
+ exec = data->transport_options.receivepack;
+ else
+ exec = data->transport_options.uploadpack;
+
+ return process_connect_service(transport, name, exec);
+}
+
+static int connect_helper(struct transport *transport, const char *name,
+ const char *exec, int fd[2])
+{
+ struct helper_data *data = transport->data;
+
+ /* Get_helper so connect is inited. */
+ get_helper(transport);
+ if (!data->connect)
+ die("Operation not supported by protocol.");
+
+ if (!process_connect_service(transport, name, exec))
+ die("Can't connect to subservice %s.", name);
+
+ fd[0] = data->helper->out;
+ fd[1] = data->helper->in;
+ return 0;
+}
+
static int fetch(struct transport *transport,
int nr_heads, struct ref **to_fetch)
{
struct helper_data *data = transport->data;
int i, count;
+ if (process_connect(transport, 0)) {
+ do_take_over(transport);
+ return transport->fetch(transport, nr_heads, to_fetch);
+ }
+
count = 0;
for (i = 0; i < nr_heads; i++)
if (!(to_fetch[i]->status & REF_STATUS_UPTODATE))
struct child_process *helper;
struct ref *ref;
- if (!remote_refs)
+ if (process_connect(transport, 1)) {
+ do_take_over(transport);
+ return transport->push_refs(transport, remote_refs, flags);
+ }
+
+ if (!remote_refs) {
+ fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
+ "Perhaps you should specify a branch such as 'master'.\n");
return 0;
+ }
helper = get_helper(transport);
if (!data->push)
return 1;
for (ref = remote_refs; ref; ref = ref->next) {
- if (ref->peer_ref)
- hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
- else if (!mirror)
+ if (!ref->peer_ref && !mirror)
continue;
- ref->deletion = is_null_sha1(ref->new_sha1);
- if (!ref->deletion &&
- !hashcmp(ref->old_sha1, ref->new_sha1)) {
- ref->status = REF_STATUS_UPTODATE;
+ /* Check for statuses set by set_ref_status_for_push() */
+ switch (ref->status) {
+ case REF_STATUS_REJECT_NONFASTFORWARD:
+ case REF_STATUS_UPTODATE:
continue;
+ default:
+ ; /* do nothing */
}
if (force_all)
continue;
}
+ if (ref->status != REF_STATUS_NONE) {
+ /*
+ * Earlier, the ref was marked not to be pushed, so ignore the ref
+ * status reported by the remote helper if the latter is 'no match'.
+ */
+ if (status == REF_STATUS_NONE)
+ continue;
+ }
+
ref->status = status;
ref->remote_status = msg;
}
helper = get_helper(transport);
+ if (process_connect(transport, for_push)) {
+ do_take_over(transport);
+ return transport->get_refs_list(transport, for_push);
+ }
+
if (data->push && for_push)
write_str_in_full(helper->in, "list for-push\n");
else
transport->fetch = fetch;
transport->push_refs = push_refs;
transport->disconnect = release_helper;
+ transport->connect = connect_helper;
+ transport->smart_options = &(data->transport_options);
return 0;
}