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git/builtin/fetch-pack.c

276 lines
6.5 KiB

#include "builtin.h"
#include "pkt-line.h"
#include "fetch-pack.h"
#include "remote.h"
#include "connect.h"
#include "oid-array.h"
#include "protocol.h"
static const char fetch_pack_usage[] =
"git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
const char *name)
{
struct ref *ref;
struct object_id oid;
const char *p;
if (!parse_oid_hex(name, &oid, &p)) {
if (*p == ' ') {
/* <oid> <ref>, find refname */
name = p + 1;
} else if (*p == '\0') {
; /* <oid>, leave oid as name */
} else {
/* <ref>, clear cruft from oid */
oidclr(&oid);
}
} else {
/* <ref>, clear cruft from get_oid_hex */
oidclr(&oid);
}
ref = alloc_ref(name);
oidcpy(&ref->old_oid, &oid);
(*nr)++;
ALLOC_GROW(*sought, *nr, *alloc);
(*sought)[*nr - 1] = ref;
}
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];
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));
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_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, ("--" 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,
args.stateless_rpc);
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, ref, 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 = !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;
}