#include "pack.h"
#include "sideband.h"
#include "fetch-pack.h"
+#include "remote.h"
#include "run-command.h"
static int transfer_unpack_limit = -1;
{
int *xd = data;
- close(xd[1]);
return recv_sideband("fetch-pack", xd[0], fd, 2);
}
-static void setup_sideband(int fd[2], int xd[2], struct async *demux)
-{
- if (!use_sideband) {
- fd[0] = xd[0];
- fd[1] = xd[1];
- return;
- }
- /* xd[] is talking with upload-pack; subprocess reads from
- * xd[0], spits out band#2 to stderr, and feeds us band#1
- * through demux->out.
- */
- demux->proc = sideband_demux;
- demux->data = xd;
- if (start_async(demux))
- die("fetch-pack: unable to fork off sideband demultiplexer");
- close(xd[0]);
- fd[0] = demux->out;
- fd[1] = xd[1];
-}
-
static int get_pack(int xd[2], char **pack_lockfile)
{
struct async demux;
- int fd[2];
const char *argv[20];
char keep_arg[256];
char hdr_arg[256];
int do_keep = args.keep_pack;
struct child_process cmd;
- setup_sideband(fd, xd, &demux);
+ memset(&demux, 0, sizeof(demux));
+ if (use_sideband) {
+ /* xd[] is talking with upload-pack; subprocess reads from
+ * xd[0], spits out band#2 to stderr, and feeds us band#1
+ * through demux->out.
+ */
+ demux.proc = sideband_demux;
+ demux.data = xd;
+ if (start_async(&demux))
+ die("fetch-pack: unable to fork off sideband"
+ " demultiplexer");
+ }
+ else
+ demux.out = xd[0];
memset(&cmd, 0, sizeof(cmd));
cmd.argv = argv;
if (!args.keep_pack && unpack_limit) {
struct pack_header header;
- if (read_pack_header(fd[0], &header))
+ if (read_pack_header(demux.out, &header))
die("protocol error: bad pack header");
snprintf(hdr_arg, sizeof(hdr_arg), "--pack_header=%u,%u",
ntohl(header.hdr_version), ntohl(header.hdr_entries));
*av++ = hdr_arg;
*av++ = NULL;
- cmd.in = fd[0];
+ cmd.in = demux.out;
cmd.git_cmd = 1;
if (start_command(&cmd))
die("fetch-pack: unable to fork off %s", argv[0]);
- close(fd[1]);
if (do_keep && pack_lockfile)
*pack_lockfile = index_pack_lockfile(cmd.out);
}
static struct ref *do_fetch_pack(int fd[2],
+ const struct ref *orig_ref,
int nr_match,
char **match,
char **pack_lockfile)
{
- struct ref *ref;
+ struct ref *ref = copy_ref_list(orig_ref);
unsigned char sha1[20];
- get_remote_heads(fd[0], &ref, 0, NULL, 0);
if (is_repository_shallow() && !server_supports("shallow"))
die("Server does not support shallow clients");
if (server_supports("multi_ack")) {
fprintf(stderr, "Server supports side-band\n");
use_sideband = 1;
}
- if (!ref) {
- packet_flush(fd[1]);
- die("no matching remote head");
- }
if (everything_local(&ref, nr_match, match)) {
packet_flush(fd[1]);
goto all_done;
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret, nr_heads;
- struct ref *ref;
+ struct ref *ref = NULL;
char *dest = NULL, **heads;
+ int fd[2];
+ struct child_process *conn;
nr_heads = 0;
heads = NULL;
if (!dest)
usage(fetch_pack_usage);
- ref = fetch_pack(&args, dest, nr_heads, heads, NULL);
+ conn = git_connect(fd, (char *)dest, args.uploadpack,
+ args.verbose ? CONNECT_VERBOSE : 0);
+ if (conn) {
+ get_remote_heads(fd[0], &ref, 0, NULL, 0);
+
+ 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);
}
struct ref *fetch_pack(struct fetch_pack_args *my_args,
+ int fd[], struct child_process *conn,
+ const struct ref *ref,
const char *dest,
int nr_heads,
char **heads,
char **pack_lockfile)
{
- int i, ret;
- int fd[2];
- struct child_process *conn;
- struct ref *ref;
struct stat st;
+ struct ref *ref_cpy;
fetch_pack_setup();
memcpy(&args, my_args, sizeof(args));
st.st_mtime = 0;
}
- conn = git_connect(fd, (char *)dest, args.uploadpack,
- args.verbose ? CONNECT_VERBOSE : 0);
if (heads && nr_heads)
nr_heads = remove_duplicates(nr_heads, heads);
- ref = do_fetch_pack(fd, nr_heads, heads, pack_lockfile);
- close(fd[0]);
- close(fd[1]);
- ret = finish_connect(conn);
-
- 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;
- }
+ if (!ref) {
+ packet_flush(fd[1]);
+ die("no matching remote head");
}
+ ref_cpy = do_fetch_pack(fd, ref, nr_heads, heads, pack_lockfile);
- if (!ret && args.depth > 0) {
+ if (args.depth > 0) {
struct cache_time mtime;
char *shallow = git_path("shallow");
int fd;
unlink(shallow);
rollback_lock_file(&lock);
} else {
- close(fd);
commit_lock_file(&lock);
}
}
- if (ret)
- ref = NULL;
-
- return ref;
+ return ref_cpy;
}