return filtered;
}
-static void bisect_rev_setup(struct rev_info *revs, const char *prefix)
+static void bisect_rev_setup(struct rev_info *revs, const char *prefix,
+ const char *bad_format, const char *good_format,
+ int read_paths)
{
struct argv_array rev_argv = { NULL, 0, 0 };
int i;
/* rev_argv.argv[0] will be ignored by setup_revisions */
argv_array_push(&rev_argv, xstrdup("bisect_rev_setup"));
- argv_array_push_sha1(&rev_argv, current_bad_sha1, "%s");
+ argv_array_push_sha1(&rev_argv, current_bad_sha1, bad_format);
for (i = 0; i < good_revs.sha1_nr; i++)
- argv_array_push_sha1(&rev_argv, good_revs.sha1[i], "^%s");
+ argv_array_push_sha1(&rev_argv, good_revs.sha1[i],
+ good_format);
argv_array_push(&rev_argv, xstrdup("--"));
- read_bisect_paths(&rev_argv);
+ if (read_paths)
+ read_bisect_paths(&rev_argv);
argv_array_push(&rev_argv, NULL);
setup_revisions(rev_argv.argv_nr, rev_argv.argv, revs, NULL);
- revs->limited = 1;
}
-static void bisect_common(struct rev_info *revs, int *reaches, int *all)
+static void bisect_common(struct rev_info *revs)
{
if (prepare_revision_walk(revs))
die("revision walk setup failed");
if (revs->tree_objects)
mark_edges_uninteresting(revs->commits, revs, NULL);
-
- revs->commits = find_bisection(revs->commits, reaches, all,
- !!skipped_revs.sha1_nr);
}
static void exit_if_skipped_commits(struct commit_list *tried,
free_commit_list(result);
}
+/*
+ * This function runs the command "git rev-list $_good ^$_bad"
+ * and returns 1 if it produces some output, 0 otherwise.
+ */
+static int check_ancestors(void)
+{
+ struct argv_array rev_argv = { NULL, 0, 0 };
+ struct strbuf str = STRBUF_INIT;
+ int i, result = 0;
+ struct child_process rls;
+ FILE *rls_fout;
+
+ argv_array_push(&rev_argv, xstrdup("rev-list"));
+ argv_array_push_sha1(&rev_argv, current_bad_sha1, "^%s");
+ for (i = 0; i < good_revs.sha1_nr; i++)
+ argv_array_push_sha1(&rev_argv, good_revs.sha1[i], "%s");
+ argv_array_push(&rev_argv, NULL);
+
+ memset(&rls, 0, sizeof(rls));
+ rls.argv = rev_argv.argv;
+ rls.out = -1;
+ rls.git_cmd = 1;
+ if (start_command(&rls))
+ die("Could not launch 'git rev-list' command.");
+ rls_fout = fdopen(rls.out, "r");
+ while (strbuf_getline(&str, rls_fout, '\n') != EOF) {
+ strbuf_trim(&str);
+ if (*str.buf) {
+ result = 1;
+ break;
+ }
+ }
+ fclose(rls_fout);
+ finish_command(&rls);
+
+ return result;
+}
+
+/*
+ * "check_good_are_ancestors_of_bad" checks that all "good" revs are
+ * ancestor of the "bad" rev.
+ *
+ * If that's not the case, we need to check the merge bases.
+ * If a merge base must be tested by the user, its source code will be
+ * checked out to be tested by the user and we will exit.
+ */
+static void check_good_are_ancestors_of_bad(const char *prefix)
+{
+ const char *filename = git_path("BISECT_ANCESTORS_OK");
+ struct stat st;
+ int fd;
+
+ if (!current_bad_sha1)
+ die("a bad revision is needed");
+
+ /* Check if file BISECT_ANCESTORS_OK exists. */
+ if (!stat(filename, &st) && S_ISREG(st.st_mode))
+ return;
+
+ /* Bisecting with no good rev is ok. */
+ if (good_revs.sha1_nr == 0)
+ return;
+
+ if (check_ancestors())
+ check_merge_bases();
+
+ /* Create file BISECT_ANCESTORS_OK. */
+ fd = open(filename, O_CREAT | O_TRUNC | O_WRONLY, 0600);
+ if (fd < 0)
+ warning("could not create file '%s': %s",
+ filename, strerror(errno));
+ else
+ close(fd);
+}
+
/*
* We use the convention that exiting with an exit code 10 means that
* the bisection process finished successfully.
* In this case the calling shell script should exit 0.
*/
-int bisect_next_exit(const char *prefix)
+int bisect_next_all(const char *prefix)
{
struct rev_info revs;
struct commit_list *tried;
if (read_bisect_refs())
die("reading bisect refs failed");
- bisect_rev_setup(&revs, prefix);
+ check_good_are_ancestors_of_bad(prefix);
- bisect_common(&revs, &reaches, &all);
+ bisect_rev_setup(&revs, prefix, "%s", "^%s", 1);
+ revs.limited = 1;
+ bisect_common(&revs);
+
+ revs.commits = find_bisection(revs.commits, &reaches, &all,
+ !!skipped_revs.sha1_nr);
revs.commits = filter_skipped(revs.commits, &tried, 0);
if (!revs.commits) {