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| #include "cache.h" | |
| #include "object-store.h" | |
| #include "run-command.h" | |
| #include "sigchain.h" | |
| #include "connected.h" | |
| #include "transport.h" | |
| #include "packfile.h" | |
| #include "promisor-remote.h" | |
| /* | |
| * If we feed all the commits we want to verify to this command | |
| * | |
| * $ git rev-list --objects --stdin --not --all | |
| * | |
| * and if it does not error out, that means everything reachable from | |
| * these commits locally exists and is connected to our existing refs. | |
| * Note that this does _not_ validate the individual objects. | |
| * | |
| * Returns 0 if everything is connected, non-zero otherwise. | |
| */ | |
| int check_connected(oid_iterate_fn fn, void *cb_data, | |
| struct check_connected_options *opt) | |
| { | |
| struct child_process rev_list = CHILD_PROCESS_INIT; | |
| FILE *rev_list_in; | |
| struct check_connected_options defaults = CHECK_CONNECTED_INIT; | |
| struct object_id oid; | |
| int err = 0; | |
| struct packed_git *new_pack = NULL; | |
| struct transport *transport; | |
| size_t base_len; | |
| if (!opt) | |
| opt = &defaults; | |
| transport = opt->transport; | |
| if (fn(cb_data, &oid)) { | |
| if (opt->err_fd) | |
| close(opt->err_fd); | |
| return err; | |
| } | |
| if (transport && transport->smart_options && | |
| transport->smart_options->self_contained_and_connected && | |
| transport->pack_lockfiles.nr == 1 && | |
| strip_suffix(transport->pack_lockfiles.items[0].string, | |
| ".keep", &base_len)) { | |
| struct strbuf idx_file = STRBUF_INIT; | |
| strbuf_add(&idx_file, transport->pack_lockfiles.items[0].string, | |
| base_len); | |
| strbuf_addstr(&idx_file, ".idx"); | |
| new_pack = add_packed_git(idx_file.buf, idx_file.len, 1); | |
| strbuf_release(&idx_file); | |
| } | |
| if (has_promisor_remote()) { | |
| /* | |
| * For partial clones, we don't want to have to do a regular | |
| * connectivity check because we have to enumerate and exclude | |
| * all promisor objects (slow), and then the connectivity check | |
| * itself becomes a no-op because in a partial clone every | |
| * object is a promisor object. Instead, just make sure we | |
| * received, in a promisor packfile, the objects pointed to by | |
| * each wanted ref. | |
| * | |
| * Before checking for promisor packs, be sure we have the | |
| * latest pack-files loaded into memory. | |
| */ | |
| reprepare_packed_git(the_repository); | |
| do { | |
| struct packed_git *p; | |
| for (p = get_all_packs(the_repository); p; p = p->next) { | |
| if (!p->pack_promisor) | |
| continue; | |
| if (find_pack_entry_one(oid.hash, p)) | |
| goto promisor_pack_found; | |
| } | |
| /* | |
| * Fallback to rev-list with oid and the rest of the | |
| * object IDs provided by fn. | |
| */ | |
| goto no_promisor_pack_found; | |
| promisor_pack_found: | |
| ; | |
| } while (!fn(cb_data, &oid)); | |
| return 0; | |
| } | |
| no_promisor_pack_found: | |
| if (opt->shallow_file) { | |
| strvec_push(&rev_list.args, "--shallow-file"); | |
| strvec_push(&rev_list.args, opt->shallow_file); | |
| } | |
| strvec_push(&rev_list.args,"rev-list"); | |
| strvec_push(&rev_list.args, "--objects"); | |
| strvec_push(&rev_list.args, "--stdin"); | |
| if (has_promisor_remote()) | |
| strvec_push(&rev_list.args, "--exclude-promisor-objects"); | |
| if (!opt->is_deepening_fetch) { | |
| strvec_push(&rev_list.args, "--not"); | |
| strvec_push(&rev_list.args, "--all"); | |
| } | |
| strvec_push(&rev_list.args, "--quiet"); | |
| strvec_push(&rev_list.args, "--alternate-refs"); | |
| if (opt->progress) | |
| strvec_pushf(&rev_list.args, "--progress=%s", | |
| _("Checking connectivity")); | |
| rev_list.git_cmd = 1; | |
| rev_list.env = opt->env; | |
| rev_list.in = -1; | |
| rev_list.no_stdout = 1; | |
| if (opt->err_fd) | |
| rev_list.err = opt->err_fd; | |
| else | |
| rev_list.no_stderr = opt->quiet; | |
| if (start_command(&rev_list)) | |
| return error(_("Could not run 'git rev-list'")); | |
| sigchain_push(SIGPIPE, SIG_IGN); | |
| rev_list_in = xfdopen(rev_list.in, "w"); | |
| do { | |
| /* | |
| * If index-pack already checked that: | |
| * - there are no dangling pointers in the new pack | |
| * - the pack is self contained | |
| * Then if the updated ref is in the new pack, then we | |
| * are sure the ref is good and not sending it to | |
| * rev-list for verification. | |
| */ | |
| if (new_pack && find_pack_entry_one(oid.hash, new_pack)) | |
| continue; | |
| if (fprintf(rev_list_in, "%s\n", oid_to_hex(&oid)) < 0) | |
| break; | |
| } while (!fn(cb_data, &oid)); | |
| if (ferror(rev_list_in) || fflush(rev_list_in)) { | |
| if (errno != EPIPE && errno != EINVAL) | |
| error_errno(_("failed write to rev-list")); | |
| err = -1; | |
| } | |
| if (fclose(rev_list_in)) | |
| err = error_errno(_("failed to close rev-list's stdin")); | |
| sigchain_pop(SIGPIPE); | |
| return finish_command(&rev_list) || err; | |
| } |