| #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; |
| } |