#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_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 --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
};
argv_array_clear(&argv);
return error(_("could not check out original"
" HEAD '%s'. Try 'git bisect"
- "reset <commit>'."), branch.buf);
+ " reset <commit>'."), branch.buf);
}
argv_array_clear(&argv);
}
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 {
BISECT_WRITE,
CHECK_AND_SET_TERMS,
BISECT_NEXT_CHECK,
- BISECT_TERMS
+ BISECT_TERMS,
+ BISECT_START
} cmdmode = 0;
int no_checkout = 0, res = 0, nolog = 0;
struct option options[] = {
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 ")),
+ 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_UNKNOWN);
+ 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:
- return bisect_next_all(prefix, no_checkout);
+ return bisect_next_all(the_repository, prefix, no_checkout);
case WRITE_TERMS:
if (argc != 2)
return error(_("--write-terms requires two arguments"));
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);
}