static struct ref *get_refs_via_connect(struct transport *transport, int for_push,
const struct argv_array *ref_prefixes)
{
struct git_transport_data *data = transport->data;
struct ref *refs = NULL;
struct packet_reader reader;
connect_setup(transport, for_push);
packet_reader_init(&reader, data->fd[0], NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_GENTLE_ON_EOF);
data->version = discover_version(&reader);
switch (data->version) {
case protocol_v2:
get_remote_refs(data->fd[1], &reader, &refs, for_push,
ref_prefixes);
break;
case protocol_v1:
case protocol_v0:
get_remote_heads(&reader, &refs,
for_push ? REF_NORMAL : 0,
&data->extra_have,
&data->shallow);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
}
data->got_remote_heads = 1;
return refs;
}
static struct ref *parse_git_refs(struct discovery *heads, int for_push)
{
struct ref *list = NULL;
get_remote_heads(-1, heads->buf, heads->len, &list,
for_push ? REF_NORMAL : 0, NULL, &heads->shallow);
return list;
}
static struct ref *parse_git_refs(struct discovery *heads, int for_push)
{
struct ref *list = NULL;
struct packet_reader reader;
packet_reader_init(&reader, -1, heads->buf, heads->len,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_GENTLE_ON_EOF);
heads->version = discover_version(&reader);
switch (heads->version) {
case protocol_v2:
/*
* Do nothing. This isn't a list of refs but rather a
* capability advertisement. Client would have run
* 'stateless-connect' so we'll dump this capability listing
* and let them request the refs themselves.
*/
break;
case protocol_v1:
case protocol_v0:
get_remote_heads(&reader, &list, for_push ? REF_NORMAL : 0,
NULL, &heads->shallow);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
}
return list;
}
static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
{
struct git_transport_data *data = transport->data;
struct send_pack_args args;
int ret;
if (!data->got_remote_heads) {
struct ref *tmp_refs;
connect_setup(transport, 1, 0);
get_remote_heads(data->fd[0], &tmp_refs, REF_NORMAL, NULL);
data->got_remote_heads = 1;
}
memset(&args, 0, sizeof(args));
args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
args.use_thin_pack = data->options.thin;
args.verbose = (transport->verbose > 0);
args.quiet = (transport->verbose < 0);
args.progress = transport->progress;
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
ret = send_pack(&args, data->fd, data->conn, remote_refs,
&data->extra_have);
close(data->fd[1]);
close(data->fd[0]);
ret |= finish_connect(data->conn);
data->conn = NULL;
data->got_remote_heads = 0;
return ret;
}
static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
{
struct git_transport_data *data = transport->data;
struct send_pack_args args;
int ret;
if (!data->conn) {
struct ref *tmp_refs;
connect_setup(transport, 1, 0);
get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
NULL);
}
args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
args.use_thin_pack = data->thin;
args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
ret = send_pack(&args, data->fd, data->conn, remote_refs,
&data->extra_have);
close(data->fd[1]);
close(data->fd[0]);
ret |= finish_connect(data->conn);
data->conn = NULL;
return ret;
}
static int fetch_refs_via_pack(struct transport *transport,
int nr_heads, struct ref **to_fetch)
{
int ret = 0;
struct git_transport_data *data = transport->data;
struct ref *refs;
char *dest = xstrdup(transport->url);
struct fetch_pack_args args;
struct ref *refs_tmp = NULL;
memset(&args, 0, sizeof(args));
args.uploadpack = data->options.uploadpack;
args.keep_pack = data->options.keep;
args.lock_pack = 1;
args.use_thin_pack = data->options.thin;
args.include_tag = data->options.followtags;
args.verbose = (transport->verbose > 1);
args.quiet = (transport->verbose < 0);
args.no_progress = !transport->progress;
args.depth = data->options.depth;
args.deepen_since = data->options.deepen_since;
args.deepen_not = data->options.deepen_not;
args.deepen_relative = data->options.deepen_relative;
args.check_self_contained_and_connected =
data->options.check_self_contained_and_connected;
args.cloning = transport->cloning;
args.update_shallow = data->options.update_shallow;
if (!data->got_remote_heads) {
connect_setup(transport, 0);
get_remote_heads(data->fd[0], NULL, 0, &refs_tmp, 0,
NULL, &data->shallow);
data->got_remote_heads = 1;
}
refs = fetch_pack(&args, data->fd, data->conn,
refs_tmp ? refs_tmp : transport->remote_refs,
dest, to_fetch, nr_heads, &data->shallow,
&transport->pack_lockfile);
close(data->fd[0]);
close(data->fd[1]);
if (finish_connect(data->conn))
ret = -1;
data->conn = NULL;
data->got_remote_heads = 0;
data->options.self_contained_and_connected =
args.self_contained_and_connected;
if (refs == NULL)
ret = -1;
if (report_unmatched_refs(to_fetch, nr_heads))
ret = -1;
free_refs(refs_tmp);
free_refs(refs);
free(dest);
return ret;
}
static struct ref *get_refs_via_connect(struct transport *transport)
{
struct git_transport_data *data = transport->data;
struct ref *refs;
connect_setup(transport);
get_remote_heads(data->fd[0], &refs, 0, NULL, 0);
return refs;
}
static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
{
struct git_transport_data *data = transport->data;
struct ref *refs;
connect_setup(transport, for_push, 0);
get_remote_heads(data->fd[0], &refs, 0, NULL,
for_push ? REF_NORMAL : 0, &data->extra_have);
return refs;
}
static int fetch_refs_via_pack(struct transport *transport,
int nr_heads, struct ref **to_fetch)
{
struct git_transport_data *data = transport->data;
char **heads = xmalloc(nr_heads * sizeof(*heads));
char **origh = xmalloc(nr_heads * sizeof(*origh));
const struct ref *refs;
char *dest = xstrdup(transport->url);
struct fetch_pack_args args;
int i;
struct ref *refs_tmp = NULL;
memset(&args, 0, sizeof(args));
args.uploadpack = data->options.uploadpack;
args.keep_pack = data->options.keep;
args.lock_pack = 1;
args.use_thin_pack = data->options.thin;
args.include_tag = data->options.followtags;
args.verbose = (transport->verbose > 0);
args.quiet = (transport->verbose < 0);
args.no_progress = !transport->progress;
args.depth = data->options.depth;
for (i = 0; i < nr_heads; i++)
origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
if (!data->got_remote_heads) {
connect_setup(transport, 0, 0);
get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
data->got_remote_heads = 1;
}
refs = fetch_pack(&args, data->fd, data->conn,
refs_tmp ? refs_tmp : transport->remote_refs,
dest, nr_heads, heads, &transport->pack_lockfile);
close(data->fd[0]);
close(data->fd[1]);
if (finish_connect(data->conn))
refs = NULL;
data->conn = NULL;
data->got_remote_heads = 0;
free_refs(refs_tmp);
for (i = 0; i < nr_heads; i++)
free(origh[i]);
free(origh);
free(heads);
free(dest);
return (refs ? 0 : -1);
}
static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
{
struct git_transport_data *data = transport->data;
struct send_pack_args args;
int ret;
if (!data->got_remote_heads) {
struct ref *tmp_refs;
connect_setup(transport, 1);
get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL,
NULL, &data->shallow);
data->got_remote_heads = 1;
}
memset(&args, 0, sizeof(args));
args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
args.use_thin_pack = data->options.thin;
args.verbose = (transport->verbose > 0);
args.quiet = (transport->verbose < 0);
args.progress = transport->progress;
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC);
args.push_options = transport->push_options;
args.url = transport->url;
if (flags & TRANSPORT_PUSH_CERT_ALWAYS)
args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED)
args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
else
args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
ret = send_pack(&args, data->fd, data->conn, remote_refs,
&data->extra_have);
close(data->fd[1]);
close(data->fd[0]);
ret |= finish_connect(data->conn);
data->conn = NULL;
data->got_remote_heads = 0;
return ret;
}
static struct ref *parse_git_refs(struct discovery *heads)
{
struct ref *list = NULL;
struct async async;
memset(&async, 0, sizeof(async));
async.proc = write_discovery;
async.data = heads;
async.out = -1;
if (start_async(&async))
die("cannot start thread to parse advertised refs");
get_remote_heads(async.out, &list, 0, NULL, 0, NULL);
close(async.out);
if (finish_async(&async))
die("ref parsing thread failed");
return list;
}
/*
* Obtains the protocol version from the transport and writes it to
* transport->data->version, first connecting if not already connected.
*
* If the protocol version is one that allows skipping the listing of remote
* refs, and must_list_refs is 0, the listing of remote refs is skipped and
* this function returns NULL. Otherwise, this function returns the list of
* remote refs.
*/
static struct ref *handshake(struct transport *transport, int for_push,
const struct argv_array *ref_prefixes,
int must_list_refs)
{
struct git_transport_data *data = transport->data;
struct ref *refs = NULL;
struct packet_reader reader;
connect_setup(transport, for_push);
packet_reader_init(&reader, data->fd[0], NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_GENTLE_ON_EOF |
PACKET_READ_DIE_ON_ERR_PACKET);
data->version = discover_version(&reader);
switch (data->version) {
case protocol_v2:
if (must_list_refs)
get_remote_refs(data->fd[1], &reader, &refs, for_push,
ref_prefixes,
transport->server_options);
break;
case protocol_v1:
case protocol_v0:
die_if_server_options(transport);
get_remote_heads(&reader, &refs,
for_push ? REF_NORMAL : 0,
&data->extra_have,
&data->shallow);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
}
data->got_remote_heads = 1;
if (reader.line_peeked)
BUG("buffer must be empty at the end of handshake()");
return refs;
}
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret;
struct ref *ref = NULL;
const char *dest = NULL;
struct ref **sought = NULL;
int nr_sought = 0, alloc_sought = 0;
int fd[2];
char *pack_lockfile = NULL;
char **pack_lockfile_ptr = NULL;
struct child_process *conn;
struct fetch_pack_args args;
struct oid_array shallow = OID_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
struct packet_reader reader;
enum protocol_version version;
fetch_if_missing = 0;
packet_trace_identity("fetch-pack");
memset(&args, 0, sizeof(args));
args.uploadpack = "git-upload-pack";
for (i = 1; i < argc && *argv[i] == '-'; i++) {
const char *arg = argv[i];
if (skip_prefix(arg, "--upload-pack=", &arg)) {
args.uploadpack = arg;
continue;
}
if (skip_prefix(arg, "--exec=", &arg)) {
args.uploadpack = arg;
continue;
}
if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
args.quiet = 1;
continue;
}
if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
args.lock_pack = args.keep_pack;
args.keep_pack = 1;
continue;
}
if (!strcmp("--thin", arg)) {
args.use_thin_pack = 1;
continue;
}
if (!strcmp("--include-tag", arg)) {
args.include_tag = 1;
continue;
}
if (!strcmp("--all", arg)) {
args.fetch_all = 1;
continue;
}
if (!strcmp("--stdin", arg)) {
args.stdin_refs = 1;
continue;
}
if (!strcmp("--diag-url", arg)) {
args.diag_url = 1;
continue;
}
if (!strcmp("-v", arg)) {
args.verbose = 1;
continue;
}
if (skip_prefix(arg, "--depth=", &arg)) {
args.depth = strtol(arg, NULL, 0);
continue;
}
if (skip_prefix(arg, "--shallow-since=", &arg)) {
args.deepen_since = xstrdup(arg);
continue;
}
if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
string_list_append(&deepen_not, arg);
continue;
}
if (!strcmp(arg, "--deepen-relative")) {
args.deepen_relative = 1;
continue;
}
if (!strcmp("--no-progress", arg)) {
args.no_progress = 1;
continue;
}
if (!strcmp("--stateless-rpc", arg)) {
args.stateless_rpc = 1;
continue;
}
if (!strcmp("--lock-pack", arg)) {
args.lock_pack = 1;
pack_lockfile_ptr = &pack_lockfile;
continue;
}
if (!strcmp("--check-self-contained-and-connected", arg)) {
args.check_self_contained_and_connected = 1;
continue;
}
if (!strcmp("--cloning", arg)) {
args.cloning = 1;
continue;
}
if (!strcmp("--update-shallow", arg)) {
args.update_shallow = 1;
continue;
}
if (!strcmp("--from-promisor", arg)) {
args.from_promisor = 1;
continue;
}
if (!strcmp("--no-dependents", arg)) {
args.no_dependents = 1;
continue;
}
if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
parse_list_objects_filter(&args.filter_options, arg);
continue;
}
if (!strcmp(arg, ("--no-" CL_ARG__FILTER))) {
list_objects_filter_set_no_filter(&args.filter_options);
continue;
}
usage(fetch_pack_usage);
}
if (deepen_not.nr)
args.deepen_not = &deepen_not;
if (i < argc)
dest = argv[i++];
else
usage(fetch_pack_usage);
/*
* Copy refs from cmdline to growable list, then append any
* refs from the standard input:
*/
for (; i < argc; i++)
add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
if (args.stdin_refs) {
if (args.stateless_rpc) {
/* in stateless RPC mode we use pkt-line to read
* from stdin, until we get a flush packet
*/
for (;;) {
char *line = packet_read_line(0, NULL);
if (!line)
break;
add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
}
}
else {
/* read from stdin one ref per line, until EOF */
struct strbuf line = STRBUF_INIT;
while (strbuf_getline_lf(&line, stdin) != EOF)
add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
strbuf_release(&line);
}
}
if (args.stateless_rpc) {
conn = NULL;
fd[0] = 0;
fd[1] = 1;
} else {
int flags = args.verbose ? CONNECT_VERBOSE : 0;
if (args.diag_url)
flags |= CONNECT_DIAG_URL;
conn = git_connect(fd, dest, args.uploadpack,
flags);
if (!conn)
return args.diag_url ? 0 : 1;
}
packet_reader_init(&reader, fd[0], NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_GENTLE_ON_EOF |
PACKET_READ_DIE_ON_ERR_PACKET);
version = discover_version(&reader);
switch (version) {
case protocol_v2:
get_remote_refs(fd[1], &reader, &ref, 0, NULL, NULL);
break;
case protocol_v1:
case protocol_v0:
get_remote_heads(&reader, &ref, 0, NULL, &shallow);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
}
ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
&shallow, pack_lockfile_ptr, version);
if (pack_lockfile) {
printf("lock %s\n", pack_lockfile);
fflush(stdout);
}
if (args.check_self_contained_and_connected &&
args.self_contained_and_connected) {
printf("connectivity-ok\n");
fflush(stdout);
}
close(fd[0]);
close(fd[1]);
if (finish_connect(conn))
return 1;
ret = !ref;
/*
* If the heads to pull were given, we should have consumed
* all of them by matching the remote. Otherwise, 'git fetch
* remote no-such-ref' would silently succeed without issuing
* an error.
*/
ret |= report_unmatched_refs(sought, nr_sought);
while (ref) {
printf("%s %s\n",
oid_to_hex(&ref->old_oid), ref->name);
ref = ref->next;
}
return ret;
}
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret, nr_heads;
struct ref *ref = NULL;
char *dest = NULL, **heads;
int fd[2];
struct child_process *conn;
nr_heads = 0;
heads = NULL;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (*arg == '-') {
if (!prefixcmp(arg, "--upload-pack=")) {
args.uploadpack = arg + 14;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
args.uploadpack = arg + 7;
continue;
}
if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
args.quiet = 1;
continue;
}
if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
args.lock_pack = args.keep_pack;
args.keep_pack = 1;
continue;
}
if (!strcmp("--thin", arg)) {
args.use_thin_pack = 1;
continue;
}
if (!strcmp("--include-tag", arg)) {
args.include_tag = 1;
continue;
}
if (!strcmp("--all", arg)) {
args.fetch_all = 1;
continue;
}
if (!strcmp("-v", arg)) {
args.verbose = 1;
continue;
}
if (!prefixcmp(arg, "--depth=")) {
args.depth = strtol(arg + 8, NULL, 0);
continue;
}
if (!strcmp("--no-progress", arg)) {
args.no_progress = 1;
continue;
}
usage(fetch_pack_usage);
}
dest = (char *)arg;
heads = (char **)(argv + i + 1);
nr_heads = argc - i - 1;
break;
}
if (!dest)
usage(fetch_pack_usage);
conn = git_connect(fd, (char *)dest, args.uploadpack,
args.verbose ? CONNECT_VERBOSE : 0);
if (conn) {
get_remote_heads(fd[0], &ref, 0, NULL, 0, NULL);
ref = fetch_pack(&args, fd, conn, ref, dest, nr_heads, heads, NULL);
close(fd[0]);
close(fd[1]);
if (finish_connect(conn))
ref = NULL;
} else {
ref = NULL;
}
ret = !ref;
if (!ret && nr_heads) {
/* If the heads to pull were given, we should have
* consumed all of them by matching the remote.
* Otherwise, 'git fetch remote no-such-ref' would
* silently succeed without issuing an error.
*/
for (i = 0; i < nr_heads; i++)
if (heads[i] && heads[i][0]) {
error("no such remote ref %s", heads[i]);
ret = 1;
}
}
while (ref) {
printf("%s %s\n",
sha1_to_hex(ref->old_sha1), ref->name);
ref = ref->next;
}
return ret;
}
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret;
struct ref *ref = NULL;
const char *dest = NULL;
struct ref **sought = NULL;
int nr_sought = 0, alloc_sought = 0;
int fd[2];
char *pack_lockfile = NULL;
char **pack_lockfile_ptr = NULL;
struct child_process *conn;
struct fetch_pack_args args;
struct sha1_array shallow = SHA1_ARRAY_INIT;
packet_trace_identity("fetch-pack");
memset(&args, 0, sizeof(args));
args.uploadpack = "git-upload-pack";
for (i = 1; i < argc && *argv[i] == '-'; i++) {
const char *arg = argv[i];
if (starts_with(arg, "--upload-pack=")) {
args.uploadpack = arg + 14;
continue;
}
if (starts_with(arg, "--exec=")) {
args.uploadpack = arg + 7;
continue;
}
if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
args.quiet = 1;
continue;
}
if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
args.lock_pack = args.keep_pack;
args.keep_pack = 1;
continue;
}
if (!strcmp("--thin", arg)) {
args.use_thin_pack = 1;
continue;
}
if (!strcmp("--include-tag", arg)) {
args.include_tag = 1;
continue;
}
if (!strcmp("--all", arg)) {
args.fetch_all = 1;
continue;
}
if (!strcmp("--stdin", arg)) {
args.stdin_refs = 1;
continue;
}
if (!strcmp("--diag-url", arg)) {
args.diag_url = 1;
continue;
}
if (!strcmp("-v", arg)) {
args.verbose = 1;
continue;
}
if (starts_with(arg, "--depth=")) {
args.depth = strtol(arg + 8, NULL, 0);
continue;
}
if (!strcmp("--no-progress", arg)) {
args.no_progress = 1;
continue;
}
if (!strcmp("--stateless-rpc", arg)) {
args.stateless_rpc = 1;
continue;
}
if (!strcmp("--lock-pack", arg)) {
args.lock_pack = 1;
pack_lockfile_ptr = &pack_lockfile;
continue;
}
if (!strcmp("--check-self-contained-and-connected", arg)) {
args.check_self_contained_and_connected = 1;
continue;
}
if (!strcmp("--cloning", arg)) {
args.cloning = 1;
continue;
}
if (!strcmp("--update-shallow", arg)) {
args.update_shallow = 1;
continue;
}
usage(fetch_pack_usage);
}
if (i < argc)
dest = argv[i++];
else
usage(fetch_pack_usage);
/*
* Copy refs from cmdline to growable list, then append any
* refs from the standard input:
*/
for (; i < argc; i++)
add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
if (args.stdin_refs) {
if (args.stateless_rpc) {
/* in stateless RPC mode we use pkt-line to read
* from stdin, until we get a flush packet
*/
for (;;) {
char *line = packet_read_line(0, NULL);
if (!line)
break;
add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
}
}
else {
/* read from stdin one ref per line, until EOF */
struct strbuf line = STRBUF_INIT;
while (strbuf_getline(&line, stdin, '\n') != EOF)
add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
strbuf_release(&line);
}
}
if (args.stateless_rpc) {
conn = NULL;
fd[0] = 0;
fd[1] = 1;
} else {
int flags = args.verbose ? CONNECT_VERBOSE : 0;
if (args.diag_url)
flags |= CONNECT_DIAG_URL;
conn = git_connect(fd, dest, args.uploadpack,
flags);
if (!conn)
return args.diag_url ? 0 : 1;
}
get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
&shallow, pack_lockfile_ptr);
if (pack_lockfile) {
printf("lock %s\n", pack_lockfile);
fflush(stdout);
}
if (args.check_self_contained_and_connected &&
args.self_contained_and_connected) {
printf("connectivity-ok\n");
fflush(stdout);
}
close(fd[0]);
close(fd[1]);
if (finish_connect(conn))
return 1;
ret = !ref;
/*
* If the heads to pull were given, we should have consumed
* all of them by matching the remote. Otherwise, 'git fetch
* remote no-such-ref' would silently succeed without issuing
* an error.
*/
for (i = 0; i < nr_sought; i++) {
if (!sought[i] || sought[i]->matched)
continue;
error("no such remote ref %s", sought[i]->name);
ret = 1;
}
while (ref) {
printf("%s %s\n",
sha1_to_hex(ref->old_sha1), ref->name);
ref = ref->next;
}
return ret;
}
int transport_update_ref_remote(struct transport* transport,
struct ref *remote_refs) {
// On this command, we need to reproduce small parts of other commands,
// but because we want to avoid the assumption that we are running from
// a local git repository, we'll not re-use that code.
struct git_transport_data *data = transport->data;
int ret = 0;
if (!data->got_remote_heads) {
struct ref *tmp_refs;
connect_setup(transport, 1, 0);
get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL,
NULL, &data->shallow);
data->got_remote_heads = 1;
}
// Now we skip into the functionality from send_pack, where
// we send the new refs to the server. Since this is a lower-level
// command, we do not do all the checks from
// set_ref_status_for_push. We also do support all the options
// that send_pack does
//
// TODO: support omitting the old value for existing refs
struct strbuf req_buf = STRBUF_INIT;
struct ref *ref;
int out = data->fd[1];
for (ref = remote_refs; ref; ref = ref->next) {
char *old_hex = sha1_to_hex(ref->old_sha1);
char *new_hex = sha1_to_hex(ref->new_sha1);
packet_buf_write(&req_buf, "%s %s %s",
old_hex, new_hex, ref->name);
}
write_or_die(out, req_buf.buf, req_buf.len);
packet_flush(out);
strbuf_release(&req_buf);
// And finally, we skip all the way to write_pack_file
// This is actually the part that would absolutely depend on
// having a local git repository.
//
// The basic assumption here is that you can only use this
// command for objects that are already in the remote,
// otherwise this would be a regular push.
//
// The end result is that the pack we need to send is always
// empty.
struct sha1file *f;
unsigned char sha1[20];
f = sha1fd_throughput(out, "<stdout>", NULL);
write_pack_header(f, 0);
sha1close(f, sha1, CSUM_CLOSE);
// We now finish the connection on the same fashion that
// git_transport_push does
close(data->fd[1]);
close(data->fd[0]);
ret |= finish_connect(data->conn);
data->conn = NULL;
data->got_remote_heads = 0;
return ret;
}
int cmd_send_pack(int argc, const char **argv, const char *prefix)
{
int i, nr_refspecs = 0;
const char **refspecs = NULL;
const char *remote_name = NULL;
struct remote *remote = NULL;
const char *dest = NULL;
int fd[2];
struct child_process *conn;
struct extra_have_objects extra_have;
struct ref *remote_refs, *local_refs;
int ret;
int send_all = 0;
const char *receivepack = "git-receive-pack";
int flags;
argv++;
for (i = 1; i < argc; i++, argv++) {
const char *arg = *argv;
if (*arg == '-') {
if (!prefixcmp(arg, "--receive-pack=")) {
receivepack = arg + 15;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
receivepack = arg + 7;
continue;
}
if (!prefixcmp(arg, "--remote=")) {
remote_name = arg + 9;
continue;
}
if (!strcmp(arg, "--all")) {
send_all = 1;
continue;
}
if (!strcmp(arg, "--dry-run")) {
args.dry_run = 1;
continue;
}
if (!strcmp(arg, "--mirror")) {
args.send_mirror = 1;
continue;
}
if (!strcmp(arg, "--force")) {
args.force_update = 1;
continue;
}
if (!strcmp(arg, "--verbose")) {
args.verbose = 1;
continue;
}
if (!strcmp(arg, "--thin")) {
args.use_thin_pack = 1;
continue;
}
usage(send_pack_usage);
}
if (!dest) {
dest = arg;
continue;
}
refspecs = (const char **) argv;
nr_refspecs = argc - i;
break;
}
if (!dest)
usage(send_pack_usage);
/*
* --all and --mirror are incompatible; neither makes sense
* with any refspecs.
*/
if ((refspecs && (send_all || args.send_mirror)) ||
(send_all && args.send_mirror))
usage(send_pack_usage);
if (remote_name) {
remote = remote_get(remote_name);
if (!remote_has_url(remote, dest)) {
die("Destination %s is not a uri for %s",
dest, remote_name);
}
}
conn = git_connect(fd, dest, receivepack, args.verbose ? CONNECT_VERBOSE : 0);
memset(&extra_have, 0, sizeof(extra_have));
get_remote_heads(fd[0], &remote_refs, 0, NULL, REF_NORMAL,
&extra_have);
verify_remote_names(nr_refspecs, refspecs);
local_refs = get_local_heads();
flags = MATCH_REFS_NONE;
if (send_all)
flags |= MATCH_REFS_ALL;
if (args.send_mirror)
flags |= MATCH_REFS_MIRROR;
/* match them up */
if (match_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
return -1;
ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
close(fd[1]);
close(fd[0]);
ret |= finish_connect(conn);
print_push_status(dest, remote_refs);
if (!args.dry_run && remote) {
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next)
update_tracking_ref(remote, ref);
}
if (!ret && !refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
return ret;
}
int cmd_send_pack(int argc, const char **argv, const char *prefix)
{
int i, nr_refspecs = 0;
const char **refspecs = NULL;
const char *remote_name = NULL;
struct remote *remote = NULL;
const char *dest = NULL;
int fd[2];
struct child_process *conn;
struct sha1_array extra_have = SHA1_ARRAY_INIT;
struct sha1_array shallow = SHA1_ARRAY_INIT;
struct ref *remote_refs, *local_refs;
int ret;
int helper_status = 0;
int send_all = 0;
const char *receivepack = "git-receive-pack";
int flags;
unsigned int reject_reasons;
int progress = -1;
struct push_cas_option cas = {0};
argv++;
for (i = 1; i < argc; i++, argv++) {
const char *arg = *argv;
if (*arg == '-') {
if (starts_with(arg, "--receive-pack=")) {
receivepack = arg + 15;
continue;
}
if (starts_with(arg, "--exec=")) {
receivepack = arg + 7;
continue;
}
if (starts_with(arg, "--remote=")) {
remote_name = arg + 9;
continue;
}
if (!strcmp(arg, "--all")) {
send_all = 1;
continue;
}
if (!strcmp(arg, "--dry-run")) {
args.dry_run = 1;
continue;
}
if (!strcmp(arg, "--mirror")) {
args.send_mirror = 1;
continue;
}
if (!strcmp(arg, "--force")) {
args.force_update = 1;
continue;
}
if (!strcmp(arg, "--quiet")) {
args.quiet = 1;
continue;
}
if (!strcmp(arg, "--verbose")) {
args.verbose = 1;
continue;
}
if (!strcmp(arg, "--progress")) {
progress = 1;
continue;
}
if (!strcmp(arg, "--no-progress")) {
progress = 0;
continue;
}
if (!strcmp(arg, "--thin")) {
args.use_thin_pack = 1;
continue;
}
if (!strcmp(arg, "--stateless-rpc")) {
args.stateless_rpc = 1;
continue;
}
if (!strcmp(arg, "--helper-status")) {
helper_status = 1;
continue;
}
if (!strcmp(arg, "--" CAS_OPT_NAME)) {
if (parse_push_cas_option(&cas, NULL, 0) < 0)
exit(1);
continue;
}
if (!strcmp(arg, "--no-" CAS_OPT_NAME)) {
if (parse_push_cas_option(&cas, NULL, 1) < 0)
exit(1);
continue;
}
if (starts_with(arg, "--" CAS_OPT_NAME "=")) {
if (parse_push_cas_option(&cas,
strchr(arg, '=') + 1, 0) < 0)
exit(1);
continue;
}
usage(send_pack_usage);
}
if (!dest) {
dest = arg;
continue;
}
refspecs = (const char **) argv;
nr_refspecs = argc - i;
break;
}
if (!dest)
usage(send_pack_usage);
/*
* --all and --mirror are incompatible; neither makes sense
* with any refspecs.
*/
if ((refspecs && (send_all || args.send_mirror)) ||
(send_all && args.send_mirror))
usage(send_pack_usage);
if (remote_name) {
remote = remote_get(remote_name);
if (!remote_has_url(remote, dest)) {
die("Destination %s is not a uri for %s",
dest, remote_name);
}
}
if (progress == -1)
progress = !args.quiet && isatty(2);
args.progress = progress;
if (args.stateless_rpc) {
conn = NULL;
fd[0] = 0;
fd[1] = 1;
} else {
conn = git_connect(fd, dest, receivepack,
args.verbose ? CONNECT_VERBOSE : 0);
}
get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL,
&extra_have, &shallow);
transport_verify_remote_names(nr_refspecs, refspecs);
local_refs = get_local_heads();
flags = MATCH_REFS_NONE;
if (send_all)
flags |= MATCH_REFS_ALL;
if (args.send_mirror)
flags |= MATCH_REFS_MIRROR;
/* match them up */
if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
return -1;
if (!is_empty_cas(&cas))
apply_push_cas(&cas, remote, remote_refs);
set_ref_status_for_push(remote_refs, args.send_mirror,
args.force_update);
ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
if (helper_status)
print_helper_status(remote_refs);
close(fd[1]);
close(fd[0]);
ret |= finish_connect(conn);
if (!helper_status)
transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
if (!args.dry_run && remote) {
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next)
transport_update_tracking_ref(remote, ref, args.verbose);
}
if (!ret && !transport_refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
return ret;
}