| #include "cache.h" |
| #include "refs.h" |
| #include "pkt-line.h" |
| #include "sideband.h" |
| #include "tag.h" |
| #include "object.h" |
| #include "commit.h" |
| #include "exec_cmd.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "list-objects.h" |
| #include "run-command.h" |
| #include "sigchain.h" |
| |
| static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>"; |
| |
| /* bits #0..7 in revision.h, #8..10 in commit.c */ |
| #define THEY_HAVE (1u << 11) |
| #define OUR_REF (1u << 12) |
| #define WANTED (1u << 13) |
| #define COMMON_KNOWN (1u << 14) |
| #define REACHABLE (1u << 15) |
| |
| #define SHALLOW (1u << 16) |
| #define NOT_SHALLOW (1u << 17) |
| #define CLIENT_SHALLOW (1u << 18) |
| |
| static unsigned long oldest_have; |
| |
| static int multi_ack, nr_our_refs; |
| static int no_done; |
| static int use_thin_pack, use_ofs_delta, use_include_tag; |
| static int no_progress, daemon_mode; |
| static int shallow_nr; |
| static struct object_array have_obj; |
| static struct object_array want_obj; |
| static struct object_array extra_edge_obj; |
| static unsigned int timeout; |
| /* 0 for no sideband, |
| * otherwise maximum packet size (up to 65520 bytes). |
| */ |
| static int use_sideband; |
| static int debug_fd; |
| static int advertise_refs; |
| static int stateless_rpc; |
| |
| static void reset_timeout(void) |
| { |
| alarm(timeout); |
| } |
| |
| static int strip(char *line, int len) |
| { |
| if (len && line[len-1] == '\n') |
| line[--len] = 0; |
| return len; |
| } |
| |
| static ssize_t send_client_data(int fd, const char *data, ssize_t sz) |
| { |
| if (use_sideband) |
| return send_sideband(1, fd, data, sz, use_sideband); |
| if (fd == 3) |
| /* emergency quit */ |
| fd = 2; |
| if (fd == 2) { |
| /* XXX: are we happy to lose stuff here? */ |
| xwrite(fd, data, sz); |
| return sz; |
| } |
| return safe_write(fd, data, sz); |
| } |
| |
| static FILE *pack_pipe = NULL; |
| static void show_commit(struct commit *commit, void *data) |
| { |
| if (commit->object.flags & BOUNDARY) |
| fputc('-', pack_pipe); |
| if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0) |
| die("broken output pipe"); |
| fputc('\n', pack_pipe); |
| fflush(pack_pipe); |
| free(commit->buffer); |
| commit->buffer = NULL; |
| } |
| |
| static void show_object(struct object *obj, const struct name_path *path, const char *component) |
| { |
| /* An object with name "foo\n0000000..." can be used to |
| * confuse downstream git-pack-objects very badly. |
| */ |
| const char *name = path_name(path, component); |
| const char *ep = strchr(name, '\n'); |
| if (ep) { |
| fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(obj->sha1), |
| (int) (ep - name), |
| name); |
| } |
| else |
| fprintf(pack_pipe, "%s %s\n", |
| sha1_to_hex(obj->sha1), name); |
| free((char *)name); |
| } |
| |
| static void show_edge(struct commit *commit) |
| { |
| fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1)); |
| } |
| |
| static int do_rev_list(int in, int out, void *user_data) |
| { |
| int i; |
| struct rev_info revs; |
| |
| pack_pipe = xfdopen(out, "w"); |
| init_revisions(&revs, NULL); |
| revs.tag_objects = 1; |
| revs.tree_objects = 1; |
| revs.blob_objects = 1; |
| if (use_thin_pack) |
| revs.edge_hint = 1; |
| |
| for (i = 0; i < want_obj.nr; i++) { |
| struct object *o = want_obj.objects[i].item; |
| /* why??? */ |
| o->flags &= ~UNINTERESTING; |
| add_pending_object(&revs, o, NULL); |
| } |
| for (i = 0; i < have_obj.nr; i++) { |
| struct object *o = have_obj.objects[i].item; |
| o->flags |= UNINTERESTING; |
| add_pending_object(&revs, o, NULL); |
| } |
| setup_revisions(0, NULL, &revs, NULL); |
| if (prepare_revision_walk(&revs)) |
| die("revision walk setup failed"); |
| mark_edges_uninteresting(revs.commits, &revs, show_edge); |
| if (use_thin_pack) |
| for (i = 0; i < extra_edge_obj.nr; i++) |
| fprintf(pack_pipe, "-%s\n", sha1_to_hex( |
| extra_edge_obj.objects[i].item->sha1)); |
| traverse_commit_list(&revs, show_commit, show_object, NULL); |
| fflush(pack_pipe); |
| fclose(pack_pipe); |
| return 0; |
| } |
| |
| static void create_pack_file(void) |
| { |
| struct async rev_list; |
| struct child_process pack_objects; |
| int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr); |
| char data[8193], progress[128]; |
| char abort_msg[] = "aborting due to possible repository " |
| "corruption on the remote side."; |
| int buffered = -1; |
| ssize_t sz; |
| const char *argv[10]; |
| int arg = 0; |
| |
| argv[arg++] = "pack-objects"; |
| if (!shallow_nr) { |
| argv[arg++] = "--revs"; |
| if (create_full_pack) |
| argv[arg++] = "--all"; |
| else if (use_thin_pack) |
| argv[arg++] = "--thin"; |
| } |
| |
| argv[arg++] = "--stdout"; |
| if (!no_progress) |
| argv[arg++] = "--progress"; |
| if (use_ofs_delta) |
| argv[arg++] = "--delta-base-offset"; |
| if (use_include_tag) |
| argv[arg++] = "--include-tag"; |
| argv[arg++] = NULL; |
| |
| memset(&pack_objects, 0, sizeof(pack_objects)); |
| pack_objects.in = -1; |
| pack_objects.out = -1; |
| pack_objects.err = -1; |
| pack_objects.git_cmd = 1; |
| pack_objects.argv = argv; |
| |
| if (start_command(&pack_objects)) |
| die("git upload-pack: unable to fork git-pack-objects"); |
| |
| if (shallow_nr) { |
| memset(&rev_list, 0, sizeof(rev_list)); |
| rev_list.proc = do_rev_list; |
| rev_list.out = pack_objects.in; |
| if (start_async(&rev_list)) |
| die("git upload-pack: unable to fork git-rev-list"); |
| } |
| else { |
| FILE *pipe_fd = xfdopen(pack_objects.in, "w"); |
| if (!create_full_pack) { |
| int i; |
| for (i = 0; i < want_obj.nr; i++) |
| fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1)); |
| fprintf(pipe_fd, "--not\n"); |
| for (i = 0; i < have_obj.nr; i++) |
| fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1)); |
| } |
| |
| fprintf(pipe_fd, "\n"); |
| fflush(pipe_fd); |
| fclose(pipe_fd); |
| } |
| |
| |
| /* We read from pack_objects.err to capture stderr output for |
| * progress bar, and pack_objects.out to capture the pack data. |
| */ |
| |
| while (1) { |
| struct pollfd pfd[2]; |
| int pe, pu, pollsize; |
| |
| reset_timeout(); |
| |
| pollsize = 0; |
| pe = pu = -1; |
| |
| if (0 <= pack_objects.out) { |
| pfd[pollsize].fd = pack_objects.out; |
| pfd[pollsize].events = POLLIN; |
| pu = pollsize; |
| pollsize++; |
| } |
| if (0 <= pack_objects.err) { |
| pfd[pollsize].fd = pack_objects.err; |
| pfd[pollsize].events = POLLIN; |
| pe = pollsize; |
| pollsize++; |
| } |
| |
| if (!pollsize) |
| break; |
| |
| if (poll(pfd, pollsize, -1) < 0) { |
| if (errno != EINTR) { |
| error("poll failed, resuming: %s", |
| strerror(errno)); |
| sleep(1); |
| } |
| continue; |
| } |
| if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
| /* Status ready; we ship that in the side-band |
| * or dump to the standard error. |
| */ |
| sz = xread(pack_objects.err, progress, |
| sizeof(progress)); |
| if (0 < sz) |
| send_client_data(2, progress, sz); |
| else if (sz == 0) { |
| close(pack_objects.err); |
| pack_objects.err = -1; |
| } |
| else |
| goto fail; |
| /* give priority to status messages */ |
| continue; |
| } |
| if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
| /* Data ready; we keep the last byte to ourselves |
| * in case we detect broken rev-list, so that we |
| * can leave the stream corrupted. This is |
| * unfortunate -- unpack-objects would happily |
| * accept a valid packdata with trailing garbage, |
| * so appending garbage after we pass all the |
| * pack data is not good enough to signal |
| * breakage to downstream. |
| */ |
| char *cp = data; |
| ssize_t outsz = 0; |
| if (0 <= buffered) { |
| *cp++ = buffered; |
| outsz++; |
| } |
| sz = xread(pack_objects.out, cp, |
| sizeof(data) - outsz); |
| if (0 < sz) |
| ; |
| else if (sz == 0) { |
| close(pack_objects.out); |
| pack_objects.out = -1; |
| } |
| else |
| goto fail; |
| sz += outsz; |
| if (1 < sz) { |
| buffered = data[sz-1] & 0xFF; |
| sz--; |
| } |
| else |
| buffered = -1; |
| sz = send_client_data(1, data, sz); |
| if (sz < 0) |
| goto fail; |
| } |
| } |
| |
| if (finish_command(&pack_objects)) { |
| error("git upload-pack: git-pack-objects died with error."); |
| goto fail; |
| } |
| if (shallow_nr && finish_async(&rev_list)) |
| goto fail; /* error was already reported */ |
| |
| /* flush the data */ |
| if (0 <= buffered) { |
| data[0] = buffered; |
| sz = send_client_data(1, data, 1); |
| if (sz < 0) |
| goto fail; |
| fprintf(stderr, "flushed.\n"); |
| } |
| if (use_sideband) |
| packet_flush(1); |
| return; |
| |
| fail: |
| send_client_data(3, abort_msg, sizeof(abort_msg)); |
| die("git upload-pack: %s", abort_msg); |
| } |
| |
| static int got_sha1(char *hex, unsigned char *sha1) |
| { |
| struct object *o; |
| int we_knew_they_have = 0; |
| |
| if (get_sha1_hex(hex, sha1)) |
| die("git upload-pack: expected SHA1 object, got '%s'", hex); |
| if (!has_sha1_file(sha1)) |
| return -1; |
| |
| o = lookup_object(sha1); |
| if (!(o && o->parsed)) |
| o = parse_object(sha1); |
| if (!o) |
| die("oops (%s)", sha1_to_hex(sha1)); |
| if (o->type == OBJ_COMMIT) { |
| struct commit_list *parents; |
| struct commit *commit = (struct commit *)o; |
| if (o->flags & THEY_HAVE) |
| we_knew_they_have = 1; |
| else |
| o->flags |= THEY_HAVE; |
| if (!oldest_have || (commit->date < oldest_have)) |
| oldest_have = commit->date; |
| for (parents = commit->parents; |
| parents; |
| parents = parents->next) |
| parents->item->object.flags |= THEY_HAVE; |
| } |
| if (!we_knew_they_have) { |
| add_object_array(o, NULL, &have_obj); |
| return 1; |
| } |
| return 0; |
| } |
| |
| static int reachable(struct commit *want) |
| { |
| struct commit_list *work = NULL; |
| |
| commit_list_insert_by_date(want, &work); |
| while (work) { |
| struct commit_list *list = work->next; |
| struct commit *commit = work->item; |
| free(work); |
| work = list; |
| |
| if (commit->object.flags & THEY_HAVE) { |
| want->object.flags |= COMMON_KNOWN; |
| break; |
| } |
| if (!commit->object.parsed) |
| parse_object(commit->object.sha1); |
| if (commit->object.flags & REACHABLE) |
| continue; |
| commit->object.flags |= REACHABLE; |
| if (commit->date < oldest_have) |
| continue; |
| for (list = commit->parents; list; list = list->next) { |
| struct commit *parent = list->item; |
| if (!(parent->object.flags & REACHABLE)) |
| commit_list_insert_by_date(parent, &work); |
| } |
| } |
| want->object.flags |= REACHABLE; |
| clear_commit_marks(want, REACHABLE); |
| free_commit_list(work); |
| return (want->object.flags & COMMON_KNOWN); |
| } |
| |
| static int ok_to_give_up(void) |
| { |
| int i; |
| |
| if (!have_obj.nr) |
| return 0; |
| |
| for (i = 0; i < want_obj.nr; i++) { |
| struct object *want = want_obj.objects[i].item; |
| |
| if (want->flags & COMMON_KNOWN) |
| continue; |
| want = deref_tag(want, "a want line", 0); |
| if (!want || want->type != OBJ_COMMIT) { |
| /* no way to tell if this is reachable by |
| * looking at the ancestry chain alone, so |
| * leave a note to ourselves not to worry about |
| * this object anymore. |
| */ |
| want_obj.objects[i].item->flags |= COMMON_KNOWN; |
| continue; |
| } |
| if (!reachable((struct commit *)want)) |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int get_common_commits(void) |
| { |
| static char line[1000]; |
| unsigned char sha1[20]; |
| char last_hex[41]; |
| int got_common = 0; |
| int got_other = 0; |
| int sent_ready = 0; |
| |
| save_commit_buffer = 0; |
| |
| for (;;) { |
| int len = packet_read_line(0, line, sizeof(line)); |
| reset_timeout(); |
| |
| if (!len) { |
| if (multi_ack == 2 && got_common |
| && !got_other && ok_to_give_up()) { |
| sent_ready = 1; |
| packet_write(1, "ACK %s ready\n", last_hex); |
| } |
| if (have_obj.nr == 0 || multi_ack) |
| packet_write(1, "NAK\n"); |
| |
| if (no_done && sent_ready) { |
| packet_write(1, "ACK %s\n", last_hex); |
| return 0; |
| } |
| if (stateless_rpc) |
| exit(0); |
| got_common = 0; |
| got_other = 0; |
| continue; |
| } |
| strip(line, len); |
| if (!prefixcmp(line, "have ")) { |
| switch (got_sha1(line+5, sha1)) { |
| case -1: /* they have what we do not */ |
| got_other = 1; |
| if (multi_ack && ok_to_give_up()) { |
| const char *hex = sha1_to_hex(sha1); |
| if (multi_ack == 2) { |
| sent_ready = 1; |
| packet_write(1, "ACK %s ready\n", hex); |
| } else |
| packet_write(1, "ACK %s continue\n", hex); |
| } |
| break; |
| default: |
| got_common = 1; |
| memcpy(last_hex, sha1_to_hex(sha1), 41); |
| if (multi_ack == 2) |
| packet_write(1, "ACK %s common\n", last_hex); |
| else if (multi_ack) |
| packet_write(1, "ACK %s continue\n", last_hex); |
| else if (have_obj.nr == 1) |
| packet_write(1, "ACK %s\n", last_hex); |
| break; |
| } |
| continue; |
| } |
| if (!strcmp(line, "done")) { |
| if (have_obj.nr > 0) { |
| if (multi_ack) |
| packet_write(1, "ACK %s\n", last_hex); |
| return 0; |
| } |
| packet_write(1, "NAK\n"); |
| return -1; |
| } |
| die("git upload-pack: expected SHA1 list, got '%s'", line); |
| } |
| } |
| |
| static void check_non_tip(void) |
| { |
| static const char *argv[] = { |
| "rev-list", "--stdin", NULL, |
| }; |
| static struct child_process cmd; |
| struct object *o; |
| char namebuf[42]; /* ^ + SHA-1 + LF */ |
| int i; |
| |
| /* In the normal in-process case non-tip request can never happen */ |
| if (!stateless_rpc) |
| goto error; |
| |
| cmd.argv = argv; |
| cmd.git_cmd = 1; |
| cmd.no_stderr = 1; |
| cmd.in = -1; |
| cmd.out = -1; |
| |
| if (start_command(&cmd)) |
| goto error; |
| |
| /* |
| * If rev-list --stdin encounters an unknown commit, it |
| * terminates, which will cause SIGPIPE in the write loop |
| * below. |
| */ |
| sigchain_push(SIGPIPE, SIG_IGN); |
| |
| namebuf[0] = '^'; |
| namebuf[41] = '\n'; |
| for (i = get_max_object_index(); 0 < i; ) { |
| o = get_indexed_object(--i); |
| if (!o) |
| continue; |
| if (!(o->flags & OUR_REF)) |
| continue; |
| memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40); |
| if (write_in_full(cmd.in, namebuf, 42) < 0) |
| goto error; |
| } |
| namebuf[40] = '\n'; |
| for (i = 0; i < want_obj.nr; i++) { |
| o = want_obj.objects[i].item; |
| if (o->flags & OUR_REF) |
| continue; |
| memcpy(namebuf, sha1_to_hex(o->sha1), 40); |
| if (write_in_full(cmd.in, namebuf, 41) < 0) |
| goto error; |
| } |
| close(cmd.in); |
| |
| sigchain_pop(SIGPIPE); |
| |
| /* |
| * The commits out of the rev-list are not ancestors of |
| * our ref. |
| */ |
| i = read_in_full(cmd.out, namebuf, 1); |
| if (i) |
| goto error; |
| close(cmd.out); |
| |
| /* |
| * rev-list may have died by encountering a bad commit |
| * in the history, in which case we do want to bail out |
| * even when it showed no commit. |
| */ |
| if (finish_command(&cmd)) |
| goto error; |
| |
| /* All the non-tip ones are ancestors of what we advertised */ |
| return; |
| |
| error: |
| /* Pick one of them (we know there at least is one) */ |
| for (i = 0; i < want_obj.nr; i++) { |
| o = want_obj.objects[i].item; |
| if (!(o->flags & OUR_REF)) |
| die("git upload-pack: not our ref %s", |
| sha1_to_hex(o->sha1)); |
| } |
| } |
| |
| static void receive_needs(void) |
| { |
| struct object_array shallows = OBJECT_ARRAY_INIT; |
| static char line[1000]; |
| int len, depth = 0; |
| int has_non_tip = 0; |
| |
| shallow_nr = 0; |
| if (debug_fd) |
| write_str_in_full(debug_fd, "#S\n"); |
| for (;;) { |
| struct object *o; |
| unsigned char sha1_buf[20]; |
| len = packet_read_line(0, line, sizeof(line)); |
| reset_timeout(); |
| if (!len) |
| break; |
| if (debug_fd) |
| write_in_full(debug_fd, line, len); |
| |
| if (!prefixcmp(line, "shallow ")) { |
| unsigned char sha1[20]; |
| struct object *object; |
| if (get_sha1(line + 8, sha1)) |
| die("invalid shallow line: %s", line); |
| object = parse_object(sha1); |
| if (!object) |
| die("did not find object for %s", line); |
| object->flags |= CLIENT_SHALLOW; |
| add_object_array(object, NULL, &shallows); |
| continue; |
| } |
| if (!prefixcmp(line, "deepen ")) { |
| char *end; |
| depth = strtol(line + 7, &end, 0); |
| if (end == line + 7 || depth <= 0) |
| die("Invalid deepen: %s", line); |
| continue; |
| } |
| if (prefixcmp(line, "want ") || |
| get_sha1_hex(line+5, sha1_buf)) |
| die("git upload-pack: protocol error, " |
| "expected to get sha, not '%s'", line); |
| if (strstr(line+45, "multi_ack_detailed")) |
| multi_ack = 2; |
| else if (strstr(line+45, "multi_ack")) |
| multi_ack = 1; |
| if (strstr(line+45, "no-done")) |
| no_done = 1; |
| if (strstr(line+45, "thin-pack")) |
| use_thin_pack = 1; |
| if (strstr(line+45, "ofs-delta")) |
| use_ofs_delta = 1; |
| if (strstr(line+45, "side-band-64k")) |
| use_sideband = LARGE_PACKET_MAX; |
| else if (strstr(line+45, "side-band")) |
| use_sideband = DEFAULT_PACKET_MAX; |
| if (strstr(line+45, "no-progress")) |
| no_progress = 1; |
| if (strstr(line+45, "include-tag")) |
| use_include_tag = 1; |
| |
| o = lookup_object(sha1_buf); |
| if (!o) |
| die("git upload-pack: not our ref %s", |
| sha1_to_hex(sha1_buf)); |
| if (!(o->flags & WANTED)) { |
| o->flags |= WANTED; |
| if (!(o->flags & OUR_REF)) |
| has_non_tip = 1; |
| add_object_array(o, NULL, &want_obj); |
| } |
| } |
| if (debug_fd) |
| write_str_in_full(debug_fd, "#E\n"); |
| |
| /* |
| * We have sent all our refs already, and the other end |
| * should have chosen out of them. When we are operating |
| * in the stateless RPC mode, however, their choice may |
| * have been based on the set of older refs advertised |
| * by another process that handled the initial request. |
| */ |
| if (has_non_tip) |
| check_non_tip(); |
| |
| if (!use_sideband && daemon_mode) |
| no_progress = 1; |
| |
| if (depth == 0 && shallows.nr == 0) |
| return; |
| if (depth > 0) { |
| struct commit_list *result, *backup; |
| int i; |
| backup = result = get_shallow_commits(&want_obj, depth, |
| SHALLOW, NOT_SHALLOW); |
| while (result) { |
| struct object *object = &result->item->object; |
| if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { |
| packet_write(1, "shallow %s", |
| sha1_to_hex(object->sha1)); |
| register_shallow(object->sha1); |
| shallow_nr++; |
| } |
| result = result->next; |
| } |
| free_commit_list(backup); |
| for (i = 0; i < shallows.nr; i++) { |
| struct object *object = shallows.objects[i].item; |
| if (object->flags & NOT_SHALLOW) { |
| struct commit_list *parents; |
| packet_write(1, "unshallow %s", |
| sha1_to_hex(object->sha1)); |
| object->flags &= ~CLIENT_SHALLOW; |
| /* make sure the real parents are parsed */ |
| unregister_shallow(object->sha1); |
| object->parsed = 0; |
| if (parse_commit((struct commit *)object)) |
| die("invalid commit"); |
| parents = ((struct commit *)object)->parents; |
| while (parents) { |
| add_object_array(&parents->item->object, |
| NULL, &want_obj); |
| parents = parents->next; |
| } |
| add_object_array(object, NULL, &extra_edge_obj); |
| } |
| /* make sure commit traversal conforms to client */ |
| register_shallow(object->sha1); |
| } |
| packet_flush(1); |
| } else |
| if (shallows.nr > 0) { |
| int i; |
| for (i = 0; i < shallows.nr; i++) |
| register_shallow(shallows.objects[i].item->sha1); |
| } |
| |
| shallow_nr += shallows.nr; |
| free(shallows.objects); |
| } |
| |
| static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
| { |
| static const char *capabilities = "multi_ack thin-pack side-band" |
| " side-band-64k ofs-delta shallow no-progress" |
| " include-tag multi_ack_detailed"; |
| struct object *o = parse_object(sha1); |
| const char *refname_nons = strip_namespace(refname); |
| |
| if (!o) |
| die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); |
| |
| if (capabilities) |
| packet_write(1, "%s %s%c%s%s\n", sha1_to_hex(sha1), refname_nons, |
| 0, capabilities, |
| stateless_rpc ? " no-done" : ""); |
| else |
| packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons); |
| capabilities = NULL; |
| if (!(o->flags & OUR_REF)) { |
| o->flags |= OUR_REF; |
| nr_our_refs++; |
| } |
| if (o->type == OBJ_TAG) { |
| o = deref_tag(o, refname, 0); |
| if (o) |
| packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname_nons); |
| } |
| return 0; |
| } |
| |
| static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
| { |
| struct object *o = parse_object(sha1); |
| if (!o) |
| die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); |
| if (!(o->flags & OUR_REF)) { |
| o->flags |= OUR_REF; |
| nr_our_refs++; |
| } |
| return 0; |
| } |
| |
| static void upload_pack(void) |
| { |
| if (advertise_refs || !stateless_rpc) { |
| reset_timeout(); |
| head_ref_namespaced(send_ref, NULL); |
| for_each_namespaced_ref(send_ref, NULL); |
| packet_flush(1); |
| } else { |
| head_ref_namespaced(mark_our_ref, NULL); |
| for_each_namespaced_ref(mark_our_ref, NULL); |
| } |
| if (advertise_refs) |
| return; |
| |
| receive_needs(); |
| if (want_obj.nr) { |
| get_common_commits(); |
| create_pack_file(); |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| char *dir; |
| int i; |
| int strict = 0; |
| |
| packet_trace_identity("upload-pack"); |
| git_extract_argv0_path(argv[0]); |
| read_replace_refs = 0; |
| |
| for (i = 1; i < argc; i++) { |
| char *arg = argv[i]; |
| |
| if (arg[0] != '-') |
| break; |
| if (!strcmp(arg, "--advertise-refs")) { |
| advertise_refs = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--stateless-rpc")) { |
| stateless_rpc = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--strict")) { |
| strict = 1; |
| continue; |
| } |
| if (!prefixcmp(arg, "--timeout=")) { |
| timeout = atoi(arg+10); |
| daemon_mode = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--")) { |
| i++; |
| break; |
| } |
| } |
| |
| if (i != argc-1) |
| usage(upload_pack_usage); |
| |
| setup_path(); |
| |
| dir = argv[i]; |
| |
| if (!enter_repo(dir, strict)) |
| die("'%s' does not appear to be a git repository", dir); |
| if (is_repository_shallow()) |
| die("attempt to fetch/clone from a shallow repository"); |
| if (getenv("GIT_DEBUG_SEND_PACK")) |
| debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK")); |
| upload_pack(); |
| return 0; |
| } |