diff options
Diffstat (limited to 'upload-pack.c')
| -rw-r--r-- | upload-pack.c | 649 |
1 files changed, 437 insertions, 212 deletions
diff --git a/upload-pack.c b/upload-pack.c index 0c44f6b292..7597ba3405 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -14,10 +14,16 @@ #include "sigchain.h" #include "version.h" #include "string-list.h" +#include "parse-options.h" +#include "argv-array.h" +#include "prio-queue.h" -static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>"; +static const char * const upload_pack_usage[] = { + N_("git upload-pack [<options>] <dir>"), + NULL +}; -/* bits #0..7 in revision.h, #8..10 in commit.c */ +/* Remember to update object flag allocation in object.h */ #define THEY_HAVE (1u << 11) #define OUR_REF (1u << 12) #define WANTED (1u << 13) @@ -31,11 +37,18 @@ static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=< static unsigned long oldest_have; +static int deepen_relative; static int multi_ack; static int no_done; static int use_thin_pack, use_ofs_delta, use_include_tag; static int no_progress, daemon_mode; -static int allow_tip_sha1_in_want; +/* Allow specifying sha1 if it is a ref tip. */ +#define ALLOW_TIP_SHA1 01 +/* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ +#define ALLOW_REACHABLE_SHA1 02 +/* Allow request of any sha1. Implies ALLOW_TIP_SHA1 and ALLOW_REACHABLE_SHA1. */ +#define ALLOW_ANY_SHA1 07 +static unsigned int allow_unadvertised_object_request; static int shallow_nr; static struct object_array have_obj; static struct object_array want_obj; @@ -48,82 +61,98 @@ static int keepalive = 5; static int use_sideband; static int advertise_refs; static int stateless_rpc; +static const char *pack_objects_hook; static void reset_timeout(void) { alarm(timeout); } -static ssize_t send_client_data(int fd, const char *data, ssize_t sz) +static void send_client_data(int fd, const char *data, ssize_t sz) { - if (use_sideband) - return send_sideband(1, fd, data, sz, use_sideband); + if (use_sideband) { + send_sideband(1, fd, data, sz, use_sideband); + return; + } 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; } write_or_die(fd, data, sz); - return sz; +} + +static int write_one_shallow(const struct commit_graft *graft, void *cb_data) +{ + FILE *fp = cb_data; + if (graft->nr_parent == -1) + fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid)); + return 0; } static void create_pack_file(void) { - struct child_process pack_objects; + struct child_process pack_objects = CHILD_PROCESS_INIT; 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[12]; - int i, arg = 0; + int i; FILE *pipe_fd; - char *shallow_file = NULL; + + if (!pack_objects_hook) + pack_objects.git_cmd = 1; + else { + argv_array_push(&pack_objects.args, pack_objects_hook); + argv_array_push(&pack_objects.args, "git"); + pack_objects.use_shell = 1; + } if (shallow_nr) { - shallow_file = setup_temporary_shallow(NULL); - argv[arg++] = "--shallow-file"; - argv[arg++] = shallow_file; + argv_array_push(&pack_objects.args, "--shallow-file"); + argv_array_push(&pack_objects.args, ""); } - argv[arg++] = "pack-objects"; - argv[arg++] = "--revs"; + argv_array_push(&pack_objects.args, "pack-objects"); + argv_array_push(&pack_objects.args, "--revs"); if (use_thin_pack) - argv[arg++] = "--thin"; + argv_array_push(&pack_objects.args, "--thin"); - argv[arg++] = "--stdout"; + argv_array_push(&pack_objects.args, "--stdout"); + if (shallow_nr) + argv_array_push(&pack_objects.args, "--shallow"); if (!no_progress) - argv[arg++] = "--progress"; + argv_array_push(&pack_objects.args, "--progress"); if (use_ofs_delta) - argv[arg++] = "--delta-base-offset"; + argv_array_push(&pack_objects.args, "--delta-base-offset"); if (use_include_tag) - argv[arg++] = "--include-tag"; - argv[arg++] = NULL; + argv_array_push(&pack_objects.args, "--include-tag"); - 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"); pipe_fd = xfdopen(pack_objects.in, "w"); + if (shallow_nr) + for_each_commit_graft(write_one_shallow, pipe_fd); + for (i = 0; i < want_obj.nr; i++) fprintf(pipe_fd, "%s\n", - sha1_to_hex(want_obj.objects[i].item->sha1)); + oid_to_hex(&want_obj.objects[i].item->oid)); 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)); + oid_to_hex(&have_obj.objects[i].item->oid)); for (i = 0; i < extra_edge_obj.nr; i++) fprintf(pipe_fd, "%s\n", - sha1_to_hex(extra_edge_obj.objects[i].item->sha1)); + oid_to_hex(&extra_edge_obj.objects[i].item->oid)); fprintf(pipe_fd, "\n"); fflush(pipe_fd); fclose(pipe_fd); @@ -158,11 +187,12 @@ static void create_pack_file(void) if (!pollsize) break; - ret = poll(pfd, pollsize, 1000 * keepalive); + ret = poll(pfd, pollsize, + keepalive < 0 ? -1 : 1000 * keepalive); + if (ret < 0) { if (errno != EINTR) { - error("poll failed, resuming: %s", - strerror(errno)); + error_errno("poll failed, resuming"); sleep(1); } continue; @@ -217,9 +247,7 @@ static void create_pack_file(void) } else buffered = -1; - sz = send_client_data(1, data, sz); - if (sz < 0) - goto fail; + send_client_data(1, data, sz); } /* @@ -242,18 +270,11 @@ static void create_pack_file(void) error("git upload-pack: git-pack-objects died with error."); goto fail; } - if (shallow_file) { - if (*shallow_file) - unlink(shallow_file); - free(shallow_file); - } /* flush the data */ if (0 <= buffered) { data[0] = buffered; - sz = send_client_data(1, data, 1); - if (sz < 0) - goto fail; + send_client_data(1, data, 1); fprintf(stderr, "flushed.\n"); } if (use_sideband) @@ -265,7 +286,7 @@ static void create_pack_file(void) die("git upload-pack: %s", abort_msg); } -static int got_sha1(char *hex, unsigned char *sha1) +static int got_sha1(const char *hex, unsigned char *sha1) { struct object *o; int we_knew_they_have = 0; @@ -301,21 +322,19 @@ static int got_sha1(char *hex, unsigned char *sha1) static int reachable(struct commit *want) { - struct commit_list *work = NULL; + struct prio_queue work = { compare_commits_by_commit_date }; - commit_list_insert_by_date(want, &work); - while (work) { - struct commit_list *list = work->next; - struct commit *commit = work->item; - free(work); - work = list; + prio_queue_put(&work, want); + while (work.nr) { + struct commit_list *list; + struct commit *commit = prio_queue_get(&work); if (commit->object.flags & THEY_HAVE) { want->object.flags |= COMMON_KNOWN; break; } if (!commit->object.parsed) - parse_object(commit->object.sha1); + parse_object(commit->object.oid.hash); if (commit->object.flags & REACHABLE) continue; commit->object.flags |= REACHABLE; @@ -324,12 +343,12 @@ static int reachable(struct commit *want) 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); + prio_queue_put(&work, parent); } } want->object.flags |= REACHABLE; clear_commit_marks(want, REACHABLE); - free_commit_list(work); + clear_prio_queue(&work); return (want->object.flags & COMMON_KNOWN); } @@ -373,19 +392,21 @@ static int get_common_commits(void) for (;;) { char *line = packet_read_line(0, NULL); + const char *arg; + reset_timeout(); if (!line) { if (multi_ack == 2 && got_common && !got_other && ok_to_give_up()) { sent_ready = 1; - packet_write(1, "ACK %s ready\n", last_hex); + packet_write_fmt(1, "ACK %s ready\n", last_hex); } if (have_obj.nr == 0 || multi_ack) - packet_write(1, "NAK\n"); + packet_write_fmt(1, "NAK\n"); if (no_done && sent_ready) { - packet_write(1, "ACK %s\n", last_hex); + packet_write_fmt(1, "ACK %s\n", last_hex); return 0; } if (stateless_rpc) @@ -394,28 +415,28 @@ static int get_common_commits(void) got_other = 0; continue; } - if (starts_with(line, "have ")) { - switch (got_sha1(line+5, sha1)) { + if (skip_prefix(line, "have ", &arg)) { + switch (got_sha1(arg, 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); + packet_write_fmt(1, "ACK %s ready\n", hex); } else - packet_write(1, "ACK %s continue\n", hex); + packet_write_fmt(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); + packet_write_fmt(1, "ACK %s common\n", last_hex); else if (multi_ack) - packet_write(1, "ACK %s continue\n", last_hex); + packet_write_fmt(1, "ACK %s continue\n", last_hex); else if (have_obj.nr == 1) - packet_write(1, "ACK %s\n", last_hex); + packet_write_fmt(1, "ACK %s\n", last_hex); break; } continue; @@ -423,10 +444,10 @@ static int get_common_commits(void) if (!strcmp(line, "done")) { if (have_obj.nr > 0) { if (multi_ack) - packet_write(1, "ACK %s\n", last_hex); + packet_write_fmt(1, "ACK %s\n", last_hex); return 0; } - packet_write(1, "NAK\n"); + packet_write_fmt(1, "NAK\n"); return -1; } die("git upload-pack: expected SHA1 list, got '%s'", line); @@ -435,73 +456,141 @@ static int get_common_commits(void) static int is_our_ref(struct object *o) { - return o->flags & - ((allow_tip_sha1_in_want ? HIDDEN_REF : 0) | OUR_REF); + int allow_hidden_ref = (allow_unadvertised_object_request & + (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); + return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF); } -static void check_non_tip(void) +/* + * on successful case, it's up to the caller to close cmd->out + */ +static int do_reachable_revlist(struct child_process *cmd, + struct object_array *src, + struct object_array *reachable) { 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; + cmd->argv = argv; + cmd->git_cmd = 1; + cmd->no_stderr = 1; + cmd->in = -1; + cmd->out = -1; /* - * If rev-list --stdin encounters an unknown commit, it - * terminates, which will cause SIGPIPE in the write loop + * If the next rev-list --stdin encounters an unknown commit, + * it terminates, which will cause SIGPIPE in the write loop * below. */ sigchain_push(SIGPIPE, SIG_IGN); + if (start_command(cmd)) + goto error; + namebuf[0] = '^'; namebuf[41] = '\n'; for (i = get_max_object_index(); 0 < i; ) { o = get_indexed_object(--i); if (!o) continue; + if (reachable && o->type == OBJ_COMMIT) + o->flags &= ~TMP_MARK; if (!is_our_ref(o)) continue; - memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40); - if (write_in_full(cmd.in, namebuf, 42) < 0) + memcpy(namebuf + 1, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ); + 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 (is_our_ref(o)) + for (i = 0; i < src->nr; i++) { + o = src->objects[i].item; + if (is_our_ref(o)) { + if (reachable) + add_object_array(o, NULL, reachable); continue; - memcpy(namebuf, sha1_to_hex(o->sha1), 40); - if (write_in_full(cmd.in, namebuf, 41) < 0) + } + if (reachable && o->type == OBJ_COMMIT) + o->flags |= TMP_MARK; + memcpy(namebuf, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ); + if (write_in_full(cmd->in, namebuf, 41) < 0) goto error; } - close(cmd.in); + close(cmd->in); + cmd->in = -1; + sigchain_pop(SIGPIPE); + + return 0; +error: sigchain_pop(SIGPIPE); + if (cmd->in >= 0) + close(cmd->in); + if (cmd->out >= 0) + close(cmd->out); + return -1; +} + +static int get_reachable_list(struct object_array *src, + struct object_array *reachable) +{ + struct child_process cmd = CHILD_PROCESS_INIT; + int i; + struct object *o; + char namebuf[42]; /* ^ + SHA-1 + LF */ + + if (do_reachable_revlist(&cmd, src, reachable) < 0) + return -1; + + while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) { + struct object_id sha1; + + if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1)) + break; + + o = lookup_object(sha1.hash); + if (o && o->type == OBJ_COMMIT) { + o->flags &= ~TMP_MARK; + } + } + for (i = get_max_object_index(); 0 < i; i--) { + o = get_indexed_object(i - 1); + if (o && o->type == OBJ_COMMIT && + (o->flags & TMP_MARK)) { + add_object_array(o, NULL, reachable); + o->flags &= ~TMP_MARK; + } + } + close(cmd.out); + + if (finish_command(&cmd)) + return -1; + + return 0; +} + +static int has_unreachable(struct object_array *src) +{ + struct child_process cmd = CHILD_PROCESS_INIT; + char buf[1]; + int i; + + if (do_reachable_revlist(&cmd, src, NULL) < 0) + return 1; + /* * The commits out of the rev-list are not ancestors of * our ref. */ - i = read_in_full(cmd.out, namebuf, 1); + i = read_in_full(cmd.out, buf, 1); if (i) goto error; close(cmd.out); + cmd.out = -1; /* * rev-list may have died by encountering a bad commit @@ -512,23 +601,142 @@ static void check_non_tip(void) goto error; /* All the non-tip ones are ancestors of what we advertised */ - return; + return 0; + +error: + sigchain_pop(SIGPIPE); + if (cmd.out >= 0) + close(cmd.out); + return 1; +} + +static void check_non_tip(void) +{ + int i; + + /* + * In the normal in-process case without + * uploadpack.allowReachableSHA1InWant, + * non-tip requests can never happen. + */ + if (!stateless_rpc && !(allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1)) + goto error; + if (!has_unreachable(&want_obj)) + /* 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; + struct object *o = want_obj.objects[i].item; if (!is_our_ref(o)) die("git upload-pack: not our ref %s", - sha1_to_hex(o->sha1)); + oid_to_hex(&o->oid)); + } +} + +static void send_shallow(struct commit_list *result) +{ + while (result) { + struct object *object = &result->item->object; + if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { + packet_write_fmt(1, "shallow %s", + oid_to_hex(&object->oid)); + register_shallow(object->oid.hash); + shallow_nr++; + } + result = result->next; + } +} + +static void send_unshallow(const struct object_array *shallows) +{ + int i; + + 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_fmt(1, "unshallow %s", + oid_to_hex(&object->oid)); + object->flags &= ~CLIENT_SHALLOW; + /* + * We want to _register_ "object" as shallow, but we + * also need to traverse object's parents to deepen a + * shallow clone. Unregister it for now so we can + * parse and add the parents to the want list, then + * re-register it. + */ + unregister_shallow(object->oid.hash); + object->parsed = 0; + parse_commit_or_die((struct commit *)object); + 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->oid.hash); + } +} + +static void deepen(int depth, int deepen_relative, + struct object_array *shallows) +{ + if (depth == INFINITE_DEPTH && !is_repository_shallow()) { + int i; + + for (i = 0; i < shallows->nr; i++) { + struct object *object = shallows->objects[i].item; + object->flags |= NOT_SHALLOW; + } + } else if (deepen_relative) { + struct object_array reachable_shallows = OBJECT_ARRAY_INIT; + struct commit_list *result; + + get_reachable_list(shallows, &reachable_shallows); + result = get_shallow_commits(&reachable_shallows, + depth + 1, + SHALLOW, NOT_SHALLOW); + send_shallow(result); + free_commit_list(result); + object_array_clear(&reachable_shallows); + } else { + struct commit_list *result; + + result = get_shallow_commits(&want_obj, depth, + SHALLOW, NOT_SHALLOW); + send_shallow(result); + free_commit_list(result); } + + send_unshallow(shallows); + packet_flush(1); +} + +static void deepen_by_rev_list(int ac, const char **av, + struct object_array *shallows) +{ + struct commit_list *result; + + result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW); + send_shallow(result); + free_commit_list(result); + send_unshallow(shallows); + packet_flush(1); } static void receive_needs(void) { struct object_array shallows = OBJECT_ARRAY_INIT; + struct string_list deepen_not = STRING_LIST_INIT_DUP; int depth = 0; int has_non_tip = 0; + unsigned long deepen_since = 0; + int deepen_rev_list = 0; shallow_nr = 0; for (;;) { @@ -536,14 +744,16 @@ static void receive_needs(void) const char *features; unsigned char sha1_buf[20]; char *line = packet_read_line(0, NULL); + const char *arg; + reset_timeout(); if (!line) break; - if (starts_with(line, "shallow ")) { + if (skip_prefix(line, "shallow ", &arg)) { unsigned char sha1[20]; struct object *object; - if (get_sha1_hex(line + 8, sha1)) + if (get_sha1_hex(arg, sha1)) die("invalid shallow line: %s", line); object = parse_object(sha1); if (!object) @@ -556,20 +766,42 @@ static void receive_needs(void) } continue; } - if (starts_with(line, "deepen ")) { - char *end; - depth = strtol(line + 7, &end, 0); - if (end == line + 7 || depth <= 0) + if (skip_prefix(line, "deepen ", &arg)) { + char *end = NULL; + depth = strtol(arg, &end, 0); + if (!end || *end || depth <= 0) die("Invalid deepen: %s", line); continue; } - if (!starts_with(line, "want ") || - get_sha1_hex(line+5, sha1_buf)) + if (skip_prefix(line, "deepen-since ", &arg)) { + char *end = NULL; + deepen_since = strtoul(arg, &end, 0); + if (!end || *end || !deepen_since || + /* revisions.c's max_age -1 is special */ + deepen_since == -1) + die("Invalid deepen-since: %s", line); + deepen_rev_list = 1; + continue; + } + if (skip_prefix(line, "deepen-not ", &arg)) { + char *ref = NULL; + unsigned char sha1[20]; + if (expand_ref(arg, strlen(arg), sha1, &ref) != 1) + die("git upload-pack: ambiguous deepen-not: %s", line); + string_list_append(&deepen_not, ref); + free(ref); + deepen_rev_list = 1; + continue; + } + if (!skip_prefix(line, "want ", &arg) || + get_sha1_hex(arg, sha1_buf)) die("git upload-pack: protocol error, " "expected to get sha, not '%s'", line); - features = line + 45; + features = arg + 40; + if (parse_feature_request(features, "deepen-relative")) + deepen_relative = 1; if (parse_feature_request(features, "multi_ack_detailed")) multi_ack = 2; else if (parse_feature_request(features, "multi_ack")) @@ -595,7 +827,8 @@ static void receive_needs(void) sha1_to_hex(sha1_buf)); if (!(o->flags & WANTED)) { o->flags |= WANTED; - if (!is_our_ref(o)) + if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1 + || is_our_ref(o))) has_non_tip = 1; add_object_array(o, NULL, &want_obj); } @@ -614,59 +847,39 @@ static void receive_needs(void) if (!use_sideband && daemon_mode) no_progress = 1; - if (depth == 0 && shallows.nr == 0) + if (depth == 0 && !deepen_rev_list && shallows.nr == 0) return; - if (depth > 0) { - struct commit_list *result = NULL, *backup = NULL; + if (depth > 0 && deepen_rev_list) + die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); + if (depth > 0) + deepen(depth, deepen_relative, &shallows); + else if (deepen_rev_list) { + struct argv_array av = ARGV_ARRAY_INIT; int i; - if (depth == INFINITE_DEPTH && !is_repository_shallow()) - for (i = 0; i < shallows.nr; i++) { - struct object *object = shallows.objects[i].item; - object->flags |= NOT_SHALLOW; - } - else - 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++; + + argv_array_push(&av, "rev-list"); + if (deepen_since) + argv_array_pushf(&av, "--max-age=%lu", deepen_since); + if (deepen_not.nr) { + argv_array_push(&av, "--not"); + for (i = 0; i < deepen_not.nr; i++) { + struct string_list_item *s = deepen_not.items + i; + argv_array_push(&av, s->string); } - result = result->next; + argv_array_push(&av, "--not"); } - 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; - parse_commit_or_die((struct commit *)object); - 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); + for (i = 0; i < want_obj.nr; i++) { + struct object *o = want_obj.objects[i].item; + argv_array_push(&av, oid_to_hex(&o->oid)); } - packet_flush(1); - } else + deepen_by_rev_list(av.argc, av.argv, &shallows); + argv_array_clear(&av); + } + else if (shallows.nr > 0) { int i; for (i = 0; i < shallows.nr; i++) - register_shallow(shallows.objects[i].item->sha1); + register_shallow(shallows.objects[i].item->oid.hash); } shallow_nr += shallows.nr; @@ -674,20 +887,28 @@ static void receive_needs(void) } /* return non-zero if the ref is hidden, otherwise 0 */ -static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int mark_our_ref(const char *refname, const char *refname_full, + const struct object_id *oid) { - struct object *o = lookup_unknown_object(sha1); + struct object *o = lookup_unknown_object(oid->hash); - if (ref_is_hidden(refname)) { + if (ref_is_hidden(refname, refname_full)) { o->flags |= HIDDEN_REF; return 1; } - if (!o) - die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); o->flags |= OUR_REF; return 0; } +static int check_ref(const char *refname_full, const struct object_id *oid, + int flag, void *cb_data) +{ + const char *refname = strip_namespace(refname_full); + + mark_our_ref(refname, refname_full, oid); + return 0; +} + static void format_symref_info(struct strbuf *buf, struct string_list *symref) { struct string_list_item *item; @@ -698,48 +919,52 @@ static void format_symref_info(struct strbuf *buf, struct string_list *symref) strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util); } -static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int send_ref(const char *refname, const struct object_id *oid, + 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"; + " side-band-64k ofs-delta shallow deepen-since deepen-not" + " deepen-relative no-progress include-tag multi_ack_detailed"; const char *refname_nons = strip_namespace(refname); - unsigned char peeled[20]; + struct object_id peeled; - if (mark_our_ref(refname, sha1, flag, NULL)) + if (mark_our_ref(refname_nons, refname, oid)) return 0; if (capabilities) { struct strbuf symref_info = STRBUF_INIT; format_symref_info(&symref_info, cb_data); - packet_write(1, "%s %s%c%s%s%s%s agent=%s\n", - sha1_to_hex(sha1), refname_nons, + packet_write_fmt(1, "%s %s%c%s%s%s%s%s agent=%s\n", + oid_to_hex(oid), refname_nons, 0, capabilities, - allow_tip_sha1_in_want ? " allow-tip-sha1-in-want" : "", + (allow_unadvertised_object_request & ALLOW_TIP_SHA1) ? + " allow-tip-sha1-in-want" : "", + (allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1) ? + " allow-reachable-sha1-in-want" : "", stateless_rpc ? " no-done" : "", symref_info.buf, git_user_agent_sanitized()); strbuf_release(&symref_info); } else { - packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons); + packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), refname_nons); } capabilities = NULL; - if (!peel_ref(refname, peeled)) - packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons); + if (!peel_ref(refname, peeled.hash)) + packet_write_fmt(1, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons); return 0; } -static int find_symref(const char *refname, const unsigned char *sha1, int flag, - void *cb_data) +static int find_symref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { const char *symref_target; struct string_list_item *item; - unsigned char unused[20]; + struct object_id unused; if ((flag & REF_ISSYMREF) == 0) return 0; - symref_target = resolve_ref_unsafe(refname, unused, 0, &flag); + symref_target = resolve_ref_unsafe(refname, 0, unused.hash, &flag); if (!symref_target || (flag & REF_ISSYMREF) == 0) die("'%s' is a symref but it is not?", refname); item = string_list_append(cb_data, refname); @@ -760,8 +985,8 @@ static void upload_pack(void) advertise_shallow_grafts(1); packet_flush(1); } else { - head_ref_namespaced(mark_our_ref, NULL); - for_each_namespaced_ref(mark_our_ref, NULL); + head_ref_namespaced(check_ref, NULL); + for_each_namespaced_ref(check_ref, NULL); } string_list_clear(&symref, 1); if (advertise_refs) @@ -776,62 +1001,62 @@ static void upload_pack(void) static int upload_pack_config(const char *var, const char *value, void *unused) { - if (!strcmp("uploadpack.allowtipsha1inwant", var)) - allow_tip_sha1_in_want = git_config_bool(var, value); - else if (!strcmp("uploadpack.keepalive", var)) { + if (!strcmp("uploadpack.allowtipsha1inwant", var)) { + if (git_config_bool(var, value)) + allow_unadvertised_object_request |= ALLOW_TIP_SHA1; + else + allow_unadvertised_object_request &= ~ALLOW_TIP_SHA1; + } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) { + if (git_config_bool(var, value)) + allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; + else + allow_unadvertised_object_request &= ~ALLOW_REACHABLE_SHA1; + } else if (!strcmp("uploadpack.allowanysha1inwant", var)) { + if (git_config_bool(var, value)) + allow_unadvertised_object_request |= ALLOW_ANY_SHA1; + else + allow_unadvertised_object_request &= ~ALLOW_ANY_SHA1; + } else if (!strcmp("uploadpack.keepalive", var)) { keepalive = git_config_int(var, value); if (!keepalive) keepalive = -1; + } else if (current_config_scope() != CONFIG_SCOPE_REPO) { + if (!strcmp("uploadpack.packobjectshook", var)) + return git_config_string(&pack_objects_hook, var, value); } return parse_hide_refs_config(var, value, "uploadpack"); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { - char *dir; - int i; + const char *dir; int strict = 0; - - git_setup_gettext(); + struct option options[] = { + OPT_BOOL(0, "stateless-rpc", &stateless_rpc, + N_("quit after a single request/response exchange")), + OPT_BOOL(0, "advertise-refs", &advertise_refs, + N_("exit immediately after initial ref advertisement")), + OPT_BOOL(0, "strict", &strict, + N_("do not try <directory>/.git/ if <directory> is no Git directory")), + OPT_INTEGER(0, "timeout", &timeout, + N_("interrupt transfer after <n> seconds of inactivity")), + OPT_END() + }; packet_trace_identity("upload-pack"); - git_extract_argv0_path(argv[0]); - read_replace_refs = 0; + check_replace_refs = 0; - for (i = 1; i < argc; i++) { - char *arg = argv[i]; + argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0); - 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 (starts_with(arg, "--timeout=")) { - timeout = atoi(arg+10); - daemon_mode = 1; - continue; - } - if (!strcmp(arg, "--")) { - i++; - break; - } - } + if (argc != 1) + usage_with_options(upload_pack_usage, options); - if (i != argc-1) - usage(upload_pack_usage); + if (timeout) + daemon_mode = 1; setup_path(); - dir = argv[i]; + dir = argv[0]; if (!enter_repo(dir, strict)) die("'%s' does not appear to be a git repository", dir); |