diff options
| -rw-r--r-- | builtin/am.c | 20 | ||||
| -rw-r--r-- | builtin/bisect--helper.c | 563 | ||||
| -rw-r--r-- | cache.h | 3 | ||||
| -rwxr-xr-x | git-bisect.sh | 314 | ||||
| -rwxr-xr-x | t/t6030-bisect-porcelain.sh | 2 | ||||
| -rw-r--r-- | wrapper.c | 13 |
6 files changed, 595 insertions, 320 deletions
diff --git a/builtin/am.c b/builtin/am.c index 6d1c6d3da9..0cc3997292 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -35,22 +35,6 @@ #include "repository.h" /** - * Returns 1 if the file is empty or does not exist, 0 otherwise. - */ -static int is_empty_file(const char *filename) -{ - struct stat st; - - if (stat(filename, &st) < 0) { - if (errno == ENOENT) - return 1; - die_errno(_("could not stat %s"), filename); - } - - return !st.st_size; -} - -/** * Returns the length of the first line of msg. */ static int linelen(const char *msg) @@ -1220,7 +1204,7 @@ static int parse_mail(struct am_state *state, const char *mail) goto finish; } - if (is_empty_file(am_path(state, "patch"))) { + if (is_empty_or_missing_file(am_path(state, "patch"))) { printf_ln(_("Patch is empty.")); die_user_resolve(state); } @@ -1803,7 +1787,7 @@ next: resume = 0; } - if (!is_empty_file(am_path(state, "rewritten"))) { + if (!is_empty_or_missing_file(am_path(state, "rewritten"))) { assert(state->rebasing); copy_notes_for_rebase(state); run_post_rewrite_hook(state); diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c index 417d141c09..c1cff32661 100644 --- a/builtin/bisect--helper.c +++ b/builtin/bisect--helper.c @@ -3,18 +3,58 @@ #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. @@ -106,15 +146,482 @@ static void check_expected_revs(const char **revs, int rev_nr) } } +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)) { + strbuf_release(&branch); + argv_array_clear(&argv); + return error(_("could not check out original" + " HEAD '%s'. Try 'git bisect" + "reset <commit>'."), branch.buf); + } + 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 retval = 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 { + retval = error(_("Bad bisect_write argument: %s"), state); + goto finish; + } + + if (get_oid(rev, &oid)) { + retval = 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)) { + retval = -1; + goto finish; + } + + fp = fopen(git_path_bisect_log(), "a"); + if (!fp) { + retval = 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 retval; +} + +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 bisect_next_check(const struct bisect_terms *terms, + const char *current_term) +{ + int missing_good = 1, missing_bad = 1, retval = 0; + const char *bad_ref = xstrfmt("refs/bisect/%s", terms->term_bad); + const 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); + + if (!missing_good && !missing_bad) + goto finish; + + if (!current_term) { + retval = -1; + goto finish; + } + + 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)) + goto finish; + /* + * 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")) + retval = -1; + goto finish; + } + if (!is_empty_or_missing_file(git_path_bisect_start())) { + retval = error(_(need_bad_and_good_revision_warning), + vocab_bad, vocab_good, vocab_bad, vocab_good); + } else { + retval = error(_(need_bisect_start_warning), + vocab_good, vocab_bad, vocab_good, vocab_bad); + } + +finish: + free((void *) good_glob); + free((void *) bad_ref); + return retval; +} + +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 retval = 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) { + retval = -1; + goto finish; + } + + sq_quote_argv(&orig_args, argv); + if (fprintf(fp, "%s\n", orig_args.buf) < 1) + retval = -1; + +finish: + fclose(fp); + strbuf_release(&orig_args); + return retval; +} + +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, retval = 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)) { + retval = 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) { + get_oid(start_head.buf, &oid); + if (update_ref(NULL, "BISECT_HEAD", &oid, NULL, 0, + UPDATE_REFS_MSG_ON_ERR)) { + retval = -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)) { + retval = -1; + goto finish; + } + + if (must_write_terms && write_terms(terms->term_bad, + terms->term_good)) { + retval = -1; + goto finish; + } + + retval = bisect_append_log_quoted(argv); + if (retval) + retval = -1; + +finish: + string_list_clear(&revs, 0); + string_list_clear(&states, 0); + strbuf_release(&start_head); + strbuf_release(&bisect_names); + return retval; +} + int cmd_bisect__helper(int argc, const char **argv, const char *prefix) { enum { NEXT_ALL = 1, WRITE_TERMS, BISECT_CLEAN_STATE, - CHECK_EXPECTED_REVS + CHECK_EXPECTED_REVS, + BISECT_RESET, + BISECT_WRITE, + CHECK_AND_SET_TERMS, + BISECT_NEXT_CHECK, + BISECT_TERMS, + BISECT_START } cmdmode = 0; - int no_checkout = 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), @@ -124,13 +631,29 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) 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, 0); + git_bisect_helper_usage, + PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_UNKNOWN); if (!cmdmode) usage_with_options(git_bisect_helper_usage, options); @@ -149,8 +672,40 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) 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); } - return 0; + free_terms(&terms); + return !!res; } @@ -1822,4 +1822,7 @@ void safe_create_dir(const char *dir, int share); */ extern int print_sha1_ellipsis(void); +/* Return 1 if the file is empty or does not exists, 0 otherwise. */ +extern int is_empty_or_missing_file(const char *filename); + #endif /* CACHE_H */ diff --git a/git-bisect.sh b/git-bisect.sh index 54cbfecc5a..efee12b8b1 100755 --- a/git-bisect.sh +++ b/git-bisect.sh @@ -71,122 +71,7 @@ bisect_autostart() { } bisect_start() { - # - # Check for one bad and then some good revisions. - # - has_double_dash=0 - for arg; do - case "$arg" in --) has_double_dash=1; break ;; esac - done - orig_args=$(git rev-parse --sq-quote "$@") - bad_seen=0 - eval='' - must_write_terms=0 - revs='' - if test "z$(git rev-parse --is-bare-repository)" != zfalse - then - mode=--no-checkout - else - mode='' - fi - while [ $# -gt 0 ]; do - arg="$1" - case "$arg" in - --) - shift - break - ;; - --no-checkout) - mode=--no-checkout - shift ;; - --term-good|--term-old) - shift - must_write_terms=1 - TERM_GOOD=$1 - shift ;; - --term-good=*|--term-old=*) - must_write_terms=1 - TERM_GOOD=${1#*=} - shift ;; - --term-bad|--term-new) - shift - must_write_terms=1 - TERM_BAD=$1 - shift ;; - --term-bad=*|--term-new=*) - must_write_terms=1 - TERM_BAD=${1#*=} - shift ;; - --*) - die "$(eval_gettext "unrecognised option: '\$arg'")" ;; - *) - rev=$(git rev-parse -q --verify "$arg^{commit}") || { - test $has_double_dash -eq 1 && - die "$(eval_gettext "'\$arg' does not appear to be a valid revision")" - break - } - revs="$revs $rev" - shift - ;; - esac - done - - for rev in $revs - do - # 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. - must_write_terms=1 - - case $bad_seen in - 0) state=$TERM_BAD ; bad_seen=1 ;; - *) state=$TERM_GOOD ;; - esac - eval="$eval bisect_write '$state' '$rev' 'nolog' &&" - done - # - # Verify HEAD. - # - head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) || - head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) || - die "$(gettext "Bad HEAD - I need a HEAD")" - - # - # Check if we are bisecting. - # - start_head='' - if test -s "$GIT_DIR/BISECT_START" - then - # Reset to the rev from where we started. - start_head=$(cat "$GIT_DIR/BISECT_START") - if test "z$mode" != "z--no-checkout" - then - git checkout "$start_head" -- || - die "$(eval_gettext "Checking out '\$start_head' failed. Try 'git bisect reset <valid-branch>'.")" - fi - else - # Get rev from where we start. - case "$head" in - refs/heads/*|$_x40) - # This error message should only be triggered by - # cogito usage, and cogito users should understand - # it relates to cg-seek. - [ -s "$GIT_DIR/head-name" ] && - die "$(gettext "won't bisect on cg-seek'ed tree")" - start_head="${head#refs/heads/}" - ;; - *) - die "$(gettext "Bad HEAD - strange symbolic ref")" - ;; - esac - fi - - # - # Get rid of any old bisect state. - # - git bisect--helper --bisect-clean-state || exit + git bisect--helper --bisect-start $@ || exit # # Change state. @@ -199,44 +84,14 @@ bisect_start() { trap 'exit 255' 1 2 3 15 # - # Write new start state. - # - echo "$start_head" >"$GIT_DIR/BISECT_START" && { - test "z$mode" != "z--no-checkout" || - git update-ref --no-deref BISECT_HEAD "$start_head" - } && - git rev-parse --sq-quote "$@" >"$GIT_DIR/BISECT_NAMES" && - eval "$eval true" && - if test $must_write_terms -eq 1 - then - git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit - fi && - echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit - # # Check if we can proceed to the next bisect state. # + get_terms bisect_auto_next trap '-' 0 } -bisect_write() { - state="$1" - rev="$2" - nolog="$3" - case "$state" in - "$TERM_BAD") - tag="$state" ;; - "$TERM_GOOD"|skip) - tag="$state"-"$rev" ;; - *) - die "$(eval_gettext "Bad bisect_write argument: \$state")" ;; - esac - git update-ref "refs/bisect/$tag" "$rev" || exit - echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG" - test -n "$nolog" || echo "git bisect $state $rev" >>"$GIT_DIR/BISECT_LOG" -} - bisect_skip() { all='' for arg in "$@" @@ -255,7 +110,8 @@ bisect_skip() { bisect_state() { bisect_autostart state=$1 - check_and_set_terms $state + git bisect--helper --check-and-set-terms $state $TERM_GOOD $TERM_BAD || exit + get_terms case "$#,$state" in 0,*) die "Please call 'bisect_state' with at least one argument." ;; @@ -263,7 +119,7 @@ bisect_state() { bisected_head=$(bisect_head) rev=$(git rev-parse --verify "$bisected_head") || die "$(eval_gettext "Bad rev input: \$bisected_head")" - bisect_write "$state" "$rev" + git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit git bisect--helper --check-expected-revs "$rev" ;; 2,"$TERM_BAD"|*,"$TERM_GOOD"|*,skip) shift @@ -276,7 +132,7 @@ bisect_state() { done for rev in $hash_list do - bisect_write "$state" "$rev" + git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit done git bisect--helper --check-expected-revs $hash_list ;; *,"$TERM_BAD") @@ -287,59 +143,14 @@ bisect_state() { bisect_auto_next } -bisect_next_check() { - missing_good= missing_bad= - git show-ref -q --verify refs/bisect/$TERM_BAD || missing_bad=t - test -n "$(git for-each-ref "refs/bisect/$TERM_GOOD-*")" || missing_good=t - - case "$missing_good,$missing_bad,$1" in - ,,*) - : have both $TERM_GOOD and $TERM_BAD - ok - ;; - *,) - # do not have both but not asked to fail - just report. - false - ;; - t,,"$TERM_GOOD") - # have bad (or new) but not good (or old). we could bisect although - # this is less optimum. - eval_gettextln "Warning: bisecting only with a \$TERM_BAD commit." >&2 - if test -t 0 - then - # TRANSLATORS: Make sure to include [Y] and [n] in your - # translation. The program will only accept English input - # at this point. - gettext "Are you sure [Y/n]? " >&2 - read yesno - case "$yesno" in [Nn]*) exit 1 ;; esac - fi - : bisect without $TERM_GOOD... - ;; - *) - bad_syn=$(bisect_voc bad) - good_syn=$(bisect_voc good) - if test -s "$GIT_DIR/BISECT_START" - then - - eval_gettextln "You need to give me at least one \$bad_syn and one \$good_syn revision. -(You can use \"git bisect \$bad_syn\" and \"git bisect \$good_syn\" for that.)" >&2 - else - eval_gettextln "You need to start by \"git bisect start\". -You then need to give me at least one \$good_syn and one \$bad_syn revision. -(You can use \"git bisect \$bad_syn\" and \"git bisect \$good_syn\" for that.)" >&2 - fi - exit 1 ;; - esac -} - bisect_auto_next() { - bisect_next_check && bisect_next || : + git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD && bisect_next || : } bisect_next() { case "$#" in 0) ;; *) usage ;; esac bisect_autostart - bisect_next_check $TERM_GOOD + git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD $TERM_GOOD|| exit # Perform all bisection computation, display and checkout git bisect--helper --next-all $(test -f "$GIT_DIR/BISECT_HEAD" && echo --no-checkout) @@ -371,7 +182,7 @@ bisect_next() { } bisect_visualize() { - bisect_next_check fail + git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit if test $# = 0 then @@ -393,35 +204,11 @@ bisect_visualize() { eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES") } -bisect_reset() { - test -s "$GIT_DIR/BISECT_START" || { - gettextln "We are not bisecting." - return - } - case "$#" in - 0) branch=$(cat "$GIT_DIR/BISECT_START") ;; - 1) git rev-parse --quiet --verify "$1^{commit}" >/dev/null || { - invalid="$1" - die "$(eval_gettext "'\$invalid' is not a valid commit")" - } - branch="$1" ;; - *) - usage ;; - esac - - if ! test -f "$GIT_DIR/BISECT_HEAD" && ! git checkout "$branch" -- - then - die "$(eval_gettext "Could not check out original HEAD '\$branch'. -Try 'git bisect reset <commit>'.")" - fi - git bisect--helper --bisect-clean-state || exit -} - bisect_replay () { file="$1" test "$#" -eq 1 || die "$(gettext "No logfile given")" test -r "$file" || die "$(eval_gettext "cannot read \$file for replaying")" - bisect_reset + git bisect--helper --bisect-reset || exit while read git bisect command rev do test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue @@ -431,15 +218,16 @@ bisect_replay () { command="$bisect" fi get_terms - check_and_set_terms "$command" + git bisect--helper --check-and-set-terms "$command" "$TERM_GOOD" "$TERM_BAD" || exit + get_terms case "$command" in start) cmd="bisect_start $rev" eval "$cmd" ;; "$TERM_GOOD"|"$TERM_BAD"|skip) - bisect_write "$command" "$rev" ;; + git bisect--helper --bisect-write "$command" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit;; terms) - bisect_terms $rev ;; + git bisect--helper --bisect-terms $rev || exit;; *) die "$(gettext "?? what are you talking about?")" ;; esac @@ -448,7 +236,7 @@ bisect_replay () { } bisect_run () { - bisect_next_check fail + git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit test -n "$*" || die "$(gettext "bisect run failed: no command provided.")" @@ -523,74 +311,6 @@ get_terms () { fi } -check_and_set_terms () { - cmd="$1" - case "$cmd" in - skip|start|terms) ;; - *) - if test -s "$GIT_DIR/BISECT_TERMS" && test "$cmd" != "$TERM_BAD" && test "$cmd" != "$TERM_GOOD" - then - die "$(eval_gettext "Invalid command: you're currently in a \$TERM_BAD/\$TERM_GOOD bisect.")" - fi - case "$cmd" in - bad|good) - if ! test -s "$GIT_DIR/BISECT_TERMS" - then - TERM_BAD=bad - TERM_GOOD=good - git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit - fi - ;; - new|old) - if ! test -s "$GIT_DIR/BISECT_TERMS" - then - TERM_BAD=new - TERM_GOOD=old - git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit - fi - ;; - esac ;; - esac -} - -bisect_voc () { - case "$1" in - bad) echo "bad|new" ;; - good) echo "good|old" ;; - esac -} - -bisect_terms () { - get_terms - if ! test -s "$GIT_DIR/BISECT_TERMS" - then - die "$(gettext "no terms defined")" - fi - case "$#" in - 0) - gettextln "Your current terms are $TERM_GOOD for the old state -and $TERM_BAD for the new state." - ;; - 1) - arg=$1 - case "$arg" in - --term-good|--term-old) - printf '%s\n' "$TERM_GOOD" - ;; - --term-bad|--term-new) - printf '%s\n' "$TERM_BAD" - ;; - *) - die "$(eval_gettext "invalid argument \$arg for 'git bisect terms'. -Supported options are: --term-good|--term-old and --term-bad|--term-new.")" - ;; - esac - ;; - *) - usage ;; - esac -} - case "$#" in 0) usage ;; @@ -613,7 +333,7 @@ case "$#" in visualize|view) bisect_visualize "$@" ;; reset) - bisect_reset "$@" ;; + git bisect--helper --bisect-reset "$@" ;; replay) bisect_replay "$@" ;; log) @@ -621,7 +341,7 @@ case "$#" in run) bisect_run "$@" ;; terms) - bisect_terms "$@" ;; + git bisect--helper --bisect-terms "$@" || exit;; *) usage ;; esac diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh index f84ff941c3..55835ee4a4 100755 --- a/t/t6030-bisect-porcelain.sh +++ b/t/t6030-bisect-porcelain.sh @@ -802,7 +802,7 @@ test_expect_success 'bisect terms needs 0 or 1 argument' ' test_must_fail git bisect terms only-one && test_must_fail git bisect terms 1 2 && test_must_fail git bisect terms 2>actual && - echo "no terms defined" >expected && + echo "error: no terms defined" >expected && test_i18ncmp expected actual ' @@ -690,3 +690,16 @@ int xgethostname(char *buf, size_t len) buf[len - 1] = 0; return ret; } + +int is_empty_or_missing_file(const char *filename) +{ + struct stat st; + + if (stat(filename, &st) < 0) { + if (errno == ENOENT) + return 1; + die_errno(_("could not stat %s"), filename); + } + + return !st.st_size; +} |