in builtin/fetch-pack.c [49:304]
int cmd_fetch_pack(int argc,
const char **argv,
const char *prefix UNUSED,
struct repository *repo UNUSED)
{
int i, ret;
struct ref *fetched_refs = NULL, *remote_refs = NULL;
const char *dest = NULL;
struct ref **sought = NULL;
struct ref **sought_to_free = NULL;
int nr_sought = 0, alloc_sought = 0;
int fd[2];
struct string_list pack_lockfiles = STRING_LIST_INIT_DUP;
struct string_list *pack_lockfiles_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));
list_objects_filter_init(&args.filter_options);
args.uploadpack = "git-upload-pack";
show_usage_if_asked(argc, argv, fetch_pack_usage);
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_lockfiles_ptr = &pack_lockfiles;
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("--refetch", arg)) {
args.refetch = 1;
continue;
}
if (skip_prefix(arg, ("--filter="), &arg)) {
parse_list_objects_filter(&args.filter_options, arg);
continue;
}
if (!strcmp(arg, ("--no-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, "git-upload-pack",
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, &remote_refs, 0, NULL, NULL,
args.stateless_rpc);
break;
case protocol_v1:
case protocol_v0:
get_remote_heads(&reader, &remote_refs, 0, NULL, &shallow);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
}
/*
* Create a shallow copy of `sought` so that we can free all of its entries.
* This is because `fetch_pack()` will modify the array to evict some
* entries, but won't free those.
*/
DUP_ARRAY(sought_to_free, sought, nr_sought);
fetched_refs = fetch_pack(&args, fd, remote_refs, sought, nr_sought,
&shallow, pack_lockfiles_ptr, version);
if (pack_lockfiles.nr) {
int i;
printf("lock %s\n", pack_lockfiles.items[0].string);
fflush(stdout);
for (i = 1; i < pack_lockfiles.nr; i++)
warning(_("Lockfile created but not reported: %s"),
pack_lockfiles.items[i].string);
}
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 = !fetched_refs;
/*
* 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);
for (struct ref *ref = fetched_refs; ref; ref = ref->next)
printf("%s %s\n",
oid_to_hex(&ref->old_oid), ref->name);
for (size_t i = 0; i < nr_sought; i++)
free_one_ref(sought_to_free[i]);
free(sought_to_free);
free(sought);
free_refs(fetched_refs);
free_refs(remote_refs);
list_objects_filter_release(&args.filter_options);
oid_array_clear(&shallow);
string_list_clear(&pack_lockfiles, 0);
return ret;
}