| #include "cache.h" | |
| #include "run-command.h" | |
| #include "sigchain.h" | |
| #include "connected.h" | |
| #include "transport.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(sha1_iterate_fn fn, void *cb_data, | |
| struct check_connected_options *opt) | |
| { | |
| struct child_process rev_list = CHILD_PROCESS_INIT; | |
| struct check_connected_options defaults = CHECK_CONNECTED_INIT; | |
| char commit[41]; | |
| unsigned char sha1[20]; | |
| 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, sha1)) { | |
| if (opt->err_fd) | |
| close(opt->err_fd); | |
| return err; | |
| } | |
| if (transport && transport->smart_options && | |
| transport->smart_options->self_contained_and_connected && | |
| transport->pack_lockfile && | |
| strip_suffix(transport->pack_lockfile, ".keep", &base_len)) { | |
| struct strbuf idx_file = STRBUF_INIT; | |
| strbuf_add(&idx_file, transport->pack_lockfile, base_len); | |
| strbuf_addstr(&idx_file, ".idx"); | |
| new_pack = add_packed_git(idx_file.buf, idx_file.len, 1); | |
| strbuf_release(&idx_file); | |
| } | |
| if (opt->shallow_file) { | |
| argv_array_push(&rev_list.args, "--shallow-file"); | |
| argv_array_push(&rev_list.args, opt->shallow_file); | |
| } | |
| argv_array_push(&rev_list.args,"rev-list"); | |
| argv_array_push(&rev_list.args, "--objects"); | |
| argv_array_push(&rev_list.args, "--stdin"); | |
| argv_array_push(&rev_list.args, "--not"); | |
| argv_array_push(&rev_list.args, "--all"); | |
| argv_array_push(&rev_list.args, "--quiet"); | |
| if (opt->progress) | |
| argv_array_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); | |
| commit[40] = '\n'; | |
| 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(sha1, new_pack)) | |
| continue; | |
| memcpy(commit, sha1_to_hex(sha1), 40); | |
| if (write_in_full(rev_list.in, commit, 41) < 0) { | |
| if (errno != EPIPE && errno != EINVAL) | |
| error_errno(_("failed write to rev-list")); | |
| err = -1; | |
| break; | |
| } | |
| } while (!fn(cb_data, sha1)); | |
| if (close(rev_list.in)) | |
| err = error_errno(_("failed to close rev-list's stdin")); | |
| sigchain_pop(SIGPIPE); | |
| return finish_command(&rev_list) || err; | |
| } |
