| #include "builtin.h" |
| #include "cache.h" |
| #include "parse-options.h" |
| #include "bisect.h" |
| #include "refs.h" |
| #include "dir.h" |
| #include "argv-array.h" |
| #include "run-command.h" |
| #include "prompt.h" |
| #include "quote.h" |
| |
| static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS") |
| static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV") |
| static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK") |
| static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START") |
| static GIT_PATH_FUNC(git_path_bisect_head, "BISECT_HEAD") |
| static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG") |
| static GIT_PATH_FUNC(git_path_head_name, "head-name") |
| static GIT_PATH_FUNC(git_path_bisect_names, "BISECT_NAMES") |
| |
| static const char * const git_bisect_helper_usage[] = { |
| N_("git bisect--helper --next-all [--no-checkout]"), |
| N_("git bisect--helper --write-terms <bad_term> <good_term>"), |
| N_("git bisect--helper --bisect-clean-state"), |
| N_("git bisect--helper --bisect-reset [<commit>]"), |
| N_("git bisect--helper --bisect-write [--no-log] <state> <revision> <good_term> <bad_term>"), |
| N_("git bisect--helper --bisect-check-and-set-terms <command> <good_term> <bad_term>"), |
| N_("git bisect--helper --bisect-next-check <good_term> <bad_term> [<term>]"), |
| N_("git bisect--helper --bisect-terms [--term-good | --term-old | --term-bad | --term-new]"), |
| N_("git bisect--helper --bisect-start [--term-{old,good}=<term> --term-{new,bad}=<term>]" |
| "[--no-checkout] [<bad> [<good>...]] [--] [<paths>...]"), |
| NULL |
| }; |
| |
| struct bisect_terms { |
| char *term_good; |
| char *term_bad; |
| }; |
| |
| static void free_terms(struct bisect_terms *terms) |
| { |
| FREE_AND_NULL(terms->term_good); |
| FREE_AND_NULL(terms->term_bad); |
| } |
| |
| static void set_terms(struct bisect_terms *terms, const char *bad, |
| const char *good) |
| { |
| free((void *)terms->term_good); |
| terms->term_good = xstrdup(good); |
| free((void *)terms->term_bad); |
| terms->term_bad = xstrdup(bad); |
| } |
| |
| static const char vocab_bad[] = "bad|new"; |
| static const char vocab_good[] = "good|old"; |
| |
| /* |
| * Check whether the string `term` belongs to the set of strings |
| * included in the variable arguments. |
| */ |
| LAST_ARG_MUST_BE_NULL |
| static int one_of(const char *term, ...) |
| { |
| int res = 0; |
| va_list matches; |
| const char *match; |
| |
| va_start(matches, term); |
| while (!res && (match = va_arg(matches, const char *))) |
| res = !strcmp(term, match); |
| va_end(matches); |
| |
| return res; |
| } |
| |
| static int check_term_format(const char *term, const char *orig_term) |
| { |
| int res; |
| char *new_term = xstrfmt("refs/bisect/%s", term); |
| |
| res = check_refname_format(new_term, 0); |
| free(new_term); |
| |
| if (res) |
| return error(_("'%s' is not a valid term"), term); |
| |
| if (one_of(term, "help", "start", "skip", "next", "reset", |
| "visualize", "view", "replay", "log", "run", "terms", NULL)) |
| return error(_("can't use the builtin command '%s' as a term"), term); |
| |
| /* |
| * In theory, nothing prevents swapping completely good and bad, |
| * but this situation could be confusing and hasn't been tested |
| * enough. Forbid it for now. |
| */ |
| |
| if ((strcmp(orig_term, "bad") && one_of(term, "bad", "new", NULL)) || |
| (strcmp(orig_term, "good") && one_of(term, "good", "old", NULL))) |
| return error(_("can't change the meaning of the term '%s'"), term); |
| |
| return 0; |
| } |
| |
| static int write_terms(const char *bad, const char *good) |
| { |
| FILE *fp = NULL; |
| int res; |
| |
| if (!strcmp(bad, good)) |
| return error(_("please use two different terms")); |
| |
| if (check_term_format(bad, "bad") || check_term_format(good, "good")) |
| return -1; |
| |
| fp = fopen(git_path_bisect_terms(), "w"); |
| if (!fp) |
| return error_errno(_("could not open the file BISECT_TERMS")); |
| |
| res = fprintf(fp, "%s\n%s\n", bad, good); |
| res |= fclose(fp); |
| return (res < 0) ? -1 : 0; |
| } |
| |
| static int is_expected_rev(const char *expected_hex) |
| { |
| struct strbuf actual_hex = STRBUF_INIT; |
| int res = 0; |
| if (strbuf_read_file(&actual_hex, git_path_bisect_expected_rev(), 0) >= 40) { |
| strbuf_trim(&actual_hex); |
| res = !strcmp(actual_hex.buf, expected_hex); |
| } |
| strbuf_release(&actual_hex); |
| return res; |
| } |
| |
| static void check_expected_revs(const char **revs, int rev_nr) |
| { |
| int i; |
| |
| for (i = 0; i < rev_nr; i++) { |
| if (!is_expected_rev(revs[i])) { |
| unlink_or_warn(git_path_bisect_ancestors_ok()); |
| unlink_or_warn(git_path_bisect_expected_rev()); |
| } |
| } |
| } |
| |
| static int bisect_reset(const char *commit) |
| { |
| struct strbuf branch = STRBUF_INIT; |
| |
| if (!commit) { |
| if (strbuf_read_file(&branch, git_path_bisect_start(), 0) < 1) { |
| printf(_("We are not bisecting.\n")); |
| return 0; |
| } |
| strbuf_rtrim(&branch); |
| } else { |
| struct object_id oid; |
| |
| if (get_oid_commit(commit, &oid)) |
| return error(_("'%s' is not a valid commit"), commit); |
| strbuf_addstr(&branch, commit); |
| } |
| |
| if (!file_exists(git_path_bisect_head())) { |
| struct argv_array argv = ARGV_ARRAY_INIT; |
| |
| argv_array_pushl(&argv, "checkout", branch.buf, "--", NULL); |
| if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) { |
| error(_("could not check out original" |
| " HEAD '%s'. Try 'git bisect" |
| " reset <commit>'."), branch.buf); |
| strbuf_release(&branch); |
| argv_array_clear(&argv); |
| return -1; |
| } |
| argv_array_clear(&argv); |
| } |
| |
| strbuf_release(&branch); |
| return bisect_clean_state(); |
| } |
| |
| static void log_commit(FILE *fp, char *fmt, const char *state, |
| struct commit *commit) |
| { |
| struct pretty_print_context pp = {0}; |
| struct strbuf commit_msg = STRBUF_INIT; |
| char *label = xstrfmt(fmt, state); |
| |
| format_commit_message(commit, "%s", &commit_msg, &pp); |
| |
| fprintf(fp, "# %s: [%s] %s\n", label, oid_to_hex(&commit->object.oid), |
| commit_msg.buf); |
| |
| strbuf_release(&commit_msg); |
| free(label); |
| } |
| |
| static int bisect_write(const char *state, const char *rev, |
| const struct bisect_terms *terms, int nolog) |
| { |
| struct strbuf tag = STRBUF_INIT; |
| struct object_id oid; |
| struct commit *commit; |
| FILE *fp = NULL; |
| int res = 0; |
| |
| if (!strcmp(state, terms->term_bad)) { |
| strbuf_addf(&tag, "refs/bisect/%s", state); |
| } else if (one_of(state, terms->term_good, "skip", NULL)) { |
| strbuf_addf(&tag, "refs/bisect/%s-%s", state, rev); |
| } else { |
| res = error(_("Bad bisect_write argument: %s"), state); |
| goto finish; |
| } |
| |
| if (get_oid(rev, &oid)) { |
| res = error(_("couldn't get the oid of the rev '%s'"), rev); |
| goto finish; |
| } |
| |
| if (update_ref(NULL, tag.buf, &oid, NULL, 0, |
| UPDATE_REFS_MSG_ON_ERR)) { |
| res = -1; |
| goto finish; |
| } |
| |
| fp = fopen(git_path_bisect_log(), "a"); |
| if (!fp) { |
| res = error_errno(_("couldn't open the file '%s'"), git_path_bisect_log()); |
| goto finish; |
| } |
| |
| commit = lookup_commit_reference(the_repository, &oid); |
| log_commit(fp, "%s", state, commit); |
| |
| if (!nolog) |
| fprintf(fp, "git bisect %s %s\n", state, rev); |
| |
| finish: |
| if (fp) |
| fclose(fp); |
| strbuf_release(&tag); |
| return res; |
| } |
| |
| static int check_and_set_terms(struct bisect_terms *terms, const char *cmd) |
| { |
| int has_term_file = !is_empty_or_missing_file(git_path_bisect_terms()); |
| |
| if (one_of(cmd, "skip", "start", "terms", NULL)) |
| return 0; |
| |
| if (has_term_file && strcmp(cmd, terms->term_bad) && |
| strcmp(cmd, terms->term_good)) |
| return error(_("Invalid command: you're currently in a " |
| "%s/%s bisect"), terms->term_bad, |
| terms->term_good); |
| |
| if (!has_term_file) { |
| if (one_of(cmd, "bad", "good", NULL)) { |
| set_terms(terms, "bad", "good"); |
| return write_terms(terms->term_bad, terms->term_good); |
| } |
| if (one_of(cmd, "new", "old", NULL)) { |
| set_terms(terms, "new", "old"); |
| return write_terms(terms->term_bad, terms->term_good); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mark_good(const char *refname, const struct object_id *oid, |
| int flag, void *cb_data) |
| { |
| int *m_good = (int *)cb_data; |
| *m_good = 0; |
| return 1; |
| } |
| |
| static const char need_bad_and_good_revision_warning[] = |
| N_("You need to give me at least one %s and %s revision.\n" |
| "You can use \"git bisect %s\" and \"git bisect %s\" for that."); |
| |
| static const char need_bisect_start_warning[] = |
| N_("You need to start by \"git bisect start\".\n" |
| "You then need to give me at least one %s and %s revision.\n" |
| "You can use \"git bisect %s\" and \"git bisect %s\" for that."); |
| |
| static int decide_next(const struct bisect_terms *terms, |
| const char *current_term, int missing_good, |
| int missing_bad) |
| { |
| if (!missing_good && !missing_bad) |
| return 0; |
| if (!current_term) |
| return -1; |
| |
| if (missing_good && !missing_bad && |
| !strcmp(current_term, terms->term_good)) { |
| char *yesno; |
| /* |
| * have bad (or new) but not good (or old). We could bisect |
| * although this is less optimum. |
| */ |
| warning(_("bisecting only with a %s commit"), terms->term_bad); |
| if (!isatty(0)) |
| return 0; |
| /* |
| * TRANSLATORS: Make sure to include [Y] and [n] in your |
| * translation. The program will only accept English input |
| * at this point. |
| */ |
| yesno = git_prompt(_("Are you sure [Y/n]? "), PROMPT_ECHO); |
| if (starts_with(yesno, "N") || starts_with(yesno, "n")) |
| return -1; |
| return 0; |
| } |
| |
| if (!is_empty_or_missing_file(git_path_bisect_start())) |
| return error(_(need_bad_and_good_revision_warning), |
| vocab_bad, vocab_good, vocab_bad, vocab_good); |
| else |
| return error(_(need_bisect_start_warning), |
| vocab_good, vocab_bad, vocab_good, vocab_bad); |
| } |
| |
| static int bisect_next_check(const struct bisect_terms *terms, |
| const char *current_term) |
| { |
| int missing_good = 1, missing_bad = 1; |
| char *bad_ref = xstrfmt("refs/bisect/%s", terms->term_bad); |
| char *good_glob = xstrfmt("%s-*", terms->term_good); |
| |
| if (ref_exists(bad_ref)) |
| missing_bad = 0; |
| |
| for_each_glob_ref_in(mark_good, good_glob, "refs/bisect/", |
| (void *) &missing_good); |
| |
| free(good_glob); |
| free(bad_ref); |
| |
| return decide_next(terms, current_term, missing_good, missing_bad); |
| } |
| |
| static int get_terms(struct bisect_terms *terms) |
| { |
| struct strbuf str = STRBUF_INIT; |
| FILE *fp = NULL; |
| int res = 0; |
| |
| fp = fopen(git_path_bisect_terms(), "r"); |
| if (!fp) { |
| res = -1; |
| goto finish; |
| } |
| |
| free_terms(terms); |
| strbuf_getline_lf(&str, fp); |
| terms->term_bad = strbuf_detach(&str, NULL); |
| strbuf_getline_lf(&str, fp); |
| terms->term_good = strbuf_detach(&str, NULL); |
| |
| finish: |
| if (fp) |
| fclose(fp); |
| strbuf_release(&str); |
| return res; |
| } |
| |
| static int bisect_terms(struct bisect_terms *terms, const char *option) |
| { |
| if (get_terms(terms)) |
| return error(_("no terms defined")); |
| |
| if (option == NULL) { |
| printf(_("Your current terms are %s for the old state\n" |
| "and %s for the new state.\n"), |
| terms->term_good, terms->term_bad); |
| return 0; |
| } |
| if (one_of(option, "--term-good", "--term-old", NULL)) |
| printf("%s\n", terms->term_good); |
| else if (one_of(option, "--term-bad", "--term-new", NULL)) |
| printf("%s\n", terms->term_bad); |
| else |
| return error(_("invalid argument %s for 'git bisect terms'.\n" |
| "Supported options are: " |
| "--term-good|--term-old and " |
| "--term-bad|--term-new."), option); |
| |
| return 0; |
| } |
| |
| static int bisect_append_log_quoted(const char **argv) |
| { |
| int res = 0; |
| FILE *fp = fopen(git_path_bisect_log(), "a"); |
| struct strbuf orig_args = STRBUF_INIT; |
| |
| if (!fp) |
| return -1; |
| |
| if (fprintf(fp, "git bisect start") < 1) { |
| res = -1; |
| goto finish; |
| } |
| |
| sq_quote_argv(&orig_args, argv); |
| if (fprintf(fp, "%s\n", orig_args.buf) < 1) |
| res = -1; |
| |
| finish: |
| fclose(fp); |
| strbuf_release(&orig_args); |
| return res; |
| } |
| |
| static int bisect_start(struct bisect_terms *terms, int no_checkout, |
| const char **argv, int argc) |
| { |
| int i, has_double_dash = 0, must_write_terms = 0, bad_seen = 0; |
| int flags, pathspec_pos, res = 0; |
| struct string_list revs = STRING_LIST_INIT_DUP; |
| struct string_list states = STRING_LIST_INIT_DUP; |
| struct strbuf start_head = STRBUF_INIT; |
| struct strbuf bisect_names = STRBUF_INIT; |
| struct object_id head_oid; |
| struct object_id oid; |
| const char *head; |
| |
| if (is_bare_repository()) |
| no_checkout = 1; |
| |
| /* |
| * Check for one bad and then some good revisions |
| */ |
| for (i = 0; i < argc; i++) { |
| if (!strcmp(argv[i], "--")) { |
| has_double_dash = 1; |
| break; |
| } |
| } |
| |
| for (i = 0; i < argc; i++) { |
| const char *arg = argv[i]; |
| if (!strcmp(argv[i], "--")) { |
| break; |
| } else if (!strcmp(arg, "--no-checkout")) { |
| no_checkout = 1; |
| } else if (!strcmp(arg, "--term-good") || |
| !strcmp(arg, "--term-old")) { |
| must_write_terms = 1; |
| free((void *) terms->term_good); |
| terms->term_good = xstrdup(argv[++i]); |
| } else if (skip_prefix(arg, "--term-good=", &arg) || |
| skip_prefix(arg, "--term-old=", &arg)) { |
| must_write_terms = 1; |
| free((void *) terms->term_good); |
| terms->term_good = xstrdup(arg); |
| } else if (!strcmp(arg, "--term-bad") || |
| !strcmp(arg, "--term-new")) { |
| must_write_terms = 1; |
| free((void *) terms->term_bad); |
| terms->term_bad = xstrdup(argv[++i]); |
| } else if (skip_prefix(arg, "--term-bad=", &arg) || |
| skip_prefix(arg, "--term-new=", &arg)) { |
| must_write_terms = 1; |
| free((void *) terms->term_bad); |
| terms->term_bad = xstrdup(arg); |
| } else if (starts_with(arg, "--") && |
| !one_of(arg, "--term-good", "--term-bad", NULL)) { |
| return error(_("unrecognized option: '%s'"), arg); |
| } else { |
| char *commit_id = xstrfmt("%s^{commit}", arg); |
| if (get_oid(commit_id, &oid) && has_double_dash) |
| die(_("'%s' does not appear to be a valid " |
| "revision"), arg); |
| |
| string_list_append(&revs, oid_to_hex(&oid)); |
| free(commit_id); |
| } |
| } |
| pathspec_pos = i; |
| |
| /* |
| * The user ran "git bisect start <sha1> <sha1>", hence did not |
| * explicitly specify the terms, but we are already starting to |
| * set references named with the default terms, and won't be able |
| * to change afterwards. |
| */ |
| if (revs.nr) |
| must_write_terms = 1; |
| for (i = 0; i < revs.nr; i++) { |
| if (bad_seen) { |
| string_list_append(&states, terms->term_good); |
| } else { |
| bad_seen = 1; |
| string_list_append(&states, terms->term_bad); |
| } |
| } |
| |
| /* |
| * Verify HEAD |
| */ |
| head = resolve_ref_unsafe("HEAD", 0, &head_oid, &flags); |
| if (!head) |
| if (get_oid("HEAD", &head_oid)) |
| return error(_("bad HEAD - I need a HEAD")); |
| |
| /* |
| * Check if we are bisecting |
| */ |
| if (!is_empty_or_missing_file(git_path_bisect_start())) { |
| /* Reset to the rev from where we started */ |
| strbuf_read_file(&start_head, git_path_bisect_start(), 0); |
| strbuf_trim(&start_head); |
| if (!no_checkout) { |
| struct argv_array argv = ARGV_ARRAY_INIT; |
| |
| argv_array_pushl(&argv, "checkout", start_head.buf, |
| "--", NULL); |
| if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) { |
| res = error(_("checking out '%s' failed." |
| " Try 'git bisect start " |
| "<valid-branch>'."), |
| start_head.buf); |
| goto finish; |
| } |
| } |
| } else { |
| /* Get the rev from where we start. */ |
| if (!get_oid(head, &head_oid) && |
| !starts_with(head, "refs/heads/")) { |
| strbuf_reset(&start_head); |
| strbuf_addstr(&start_head, oid_to_hex(&head_oid)); |
| } else if (!get_oid(head, &head_oid) && |
| skip_prefix(head, "refs/heads/", &head)) { |
| /* |
| * This error message should only be triggered by |
| * cogito usage, and cogito users should understand |
| * it relates to cg-seek. |
| */ |
| if (!is_empty_or_missing_file(git_path_head_name())) |
| return error(_("won't bisect on cg-seek'ed tree")); |
| strbuf_addstr(&start_head, head); |
| } else { |
| return error(_("bad HEAD - strange symbolic ref")); |
| } |
| } |
| |
| /* |
| * Get rid of any old bisect state. |
| */ |
| if (bisect_clean_state()) |
| return -1; |
| |
| /* |
| * In case of mistaken revs or checkout error, or signals received, |
| * "bisect_auto_next" below may exit or misbehave. |
| * We have to trap this to be able to clean up using |
| * "bisect_clean_state". |
| */ |
| |
| /* |
| * Write new start state |
| */ |
| write_file(git_path_bisect_start(), "%s\n", start_head.buf); |
| |
| if (no_checkout) { |
| if (get_oid(start_head.buf, &oid) < 0) { |
| res = error(_("invalid ref: '%s'"), start_head.buf); |
| goto finish; |
| } |
| if (update_ref(NULL, "BISECT_HEAD", &oid, NULL, 0, |
| UPDATE_REFS_MSG_ON_ERR)) { |
| res = -1; |
| goto finish; |
| } |
| } |
| |
| if (pathspec_pos < argc - 1) |
| sq_quote_argv(&bisect_names, argv + pathspec_pos); |
| write_file(git_path_bisect_names(), "%s\n", bisect_names.buf); |
| |
| for (i = 0; i < states.nr; i++) |
| if (bisect_write(states.items[i].string, |
| revs.items[i].string, terms, 1)) { |
| res = -1; |
| goto finish; |
| } |
| |
| if (must_write_terms && write_terms(terms->term_bad, |
| terms->term_good)) { |
| res = -1; |
| goto finish; |
| } |
| |
| res = bisect_append_log_quoted(argv); |
| if (res) |
| res = -1; |
| |
| finish: |
| string_list_clear(&revs, 0); |
| string_list_clear(&states, 0); |
| strbuf_release(&start_head); |
| strbuf_release(&bisect_names); |
| return res; |
| } |
| |
| int cmd_bisect__helper(int argc, const char **argv, const char *prefix) |
| { |
| enum { |
| NEXT_ALL = 1, |
| WRITE_TERMS, |
| BISECT_CLEAN_STATE, |
| CHECK_EXPECTED_REVS, |
| BISECT_RESET, |
| BISECT_WRITE, |
| CHECK_AND_SET_TERMS, |
| BISECT_NEXT_CHECK, |
| BISECT_TERMS, |
| BISECT_START |
| } cmdmode = 0; |
| int no_checkout = 0, res = 0, nolog = 0; |
| struct option options[] = { |
| OPT_CMDMODE(0, "next-all", &cmdmode, |
| N_("perform 'git bisect next'"), NEXT_ALL), |
| OPT_CMDMODE(0, "write-terms", &cmdmode, |
| N_("write the terms to .git/BISECT_TERMS"), WRITE_TERMS), |
| OPT_CMDMODE(0, "bisect-clean-state", &cmdmode, |
| N_("cleanup the bisection state"), BISECT_CLEAN_STATE), |
| OPT_CMDMODE(0, "check-expected-revs", &cmdmode, |
| N_("check for expected revs"), CHECK_EXPECTED_REVS), |
| OPT_CMDMODE(0, "bisect-reset", &cmdmode, |
| N_("reset the bisection state"), BISECT_RESET), |
| OPT_CMDMODE(0, "bisect-write", &cmdmode, |
| N_("write out the bisection state in BISECT_LOG"), BISECT_WRITE), |
| OPT_CMDMODE(0, "check-and-set-terms", &cmdmode, |
| N_("check and set terms in a bisection state"), CHECK_AND_SET_TERMS), |
| OPT_CMDMODE(0, "bisect-next-check", &cmdmode, |
| N_("check whether bad or good terms exist"), BISECT_NEXT_CHECK), |
| OPT_CMDMODE(0, "bisect-terms", &cmdmode, |
| N_("print out the bisect terms"), BISECT_TERMS), |
| OPT_CMDMODE(0, "bisect-start", &cmdmode, |
| N_("start the bisect session"), BISECT_START), |
| OPT_BOOL(0, "no-checkout", &no_checkout, |
| N_("update BISECT_HEAD instead of checking out the current commit")), |
| OPT_BOOL(0, "no-log", &nolog, |
| N_("no log for BISECT_WRITE")), |
| OPT_END() |
| }; |
| struct bisect_terms terms = { .term_good = NULL, .term_bad = NULL }; |
| |
| argc = parse_options(argc, argv, prefix, options, |
| git_bisect_helper_usage, |
| PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_UNKNOWN); |
| |
| if (!cmdmode) |
| usage_with_options(git_bisect_helper_usage, options); |
| |
| switch (cmdmode) { |
| case NEXT_ALL: |
| res = bisect_next_all(the_repository, prefix, no_checkout); |
| break; |
| case WRITE_TERMS: |
| if (argc != 2) |
| return error(_("--write-terms requires two arguments")); |
| return write_terms(argv[0], argv[1]); |
| case BISECT_CLEAN_STATE: |
| if (argc != 0) |
| return error(_("--bisect-clean-state requires no arguments")); |
| return bisect_clean_state(); |
| case CHECK_EXPECTED_REVS: |
| check_expected_revs(argv, argc); |
| return 0; |
| case BISECT_RESET: |
| if (argc > 1) |
| return error(_("--bisect-reset requires either no argument or a commit")); |
| return !!bisect_reset(argc ? argv[0] : NULL); |
| case BISECT_WRITE: |
| if (argc != 4 && argc != 5) |
| return error(_("--bisect-write requires either 4 or 5 arguments")); |
| set_terms(&terms, argv[3], argv[2]); |
| res = bisect_write(argv[0], argv[1], &terms, nolog); |
| break; |
| case CHECK_AND_SET_TERMS: |
| if (argc != 3) |
| return error(_("--check-and-set-terms requires 3 arguments")); |
| set_terms(&terms, argv[2], argv[1]); |
| res = check_and_set_terms(&terms, argv[0]); |
| break; |
| case BISECT_NEXT_CHECK: |
| if (argc != 2 && argc != 3) |
| return error(_("--bisect-next-check requires 2 or 3 arguments")); |
| set_terms(&terms, argv[1], argv[0]); |
| res = bisect_next_check(&terms, argc == 3 ? argv[2] : NULL); |
| break; |
| case BISECT_TERMS: |
| if (argc > 1) |
| return error(_("--bisect-terms requires 0 or 1 argument")); |
| res = bisect_terms(&terms, argc == 1 ? argv[0] : NULL); |
| break; |
| case BISECT_START: |
| set_terms(&terms, "bad", "good"); |
| res = bisect_start(&terms, no_checkout, argv, argc); |
| break; |
| default: |
| return error("BUG: unknown subcommand '%d'", cmdmode); |
| } |
| free_terms(&terms); |
| |
| /* |
| * Handle early success |
| * From check_merge_bases > check_good_are_ancestors_of_bad > bisect_next_all |
| */ |
| if (res == BISECT_INTERNAL_SUCCESS_MERGE_BASE) |
| res = BISECT_OK; |
| |
| return abs(res); |
| } |