From: Miriam Rubio Date: Mon, 20 Jan 2020 14:37:41 GMT Subject: [PATCH 10/29] bisect: libify `handle_bad_merge_base` and its dependents Message-ID: <20200120143800.900-11-mirucam@gmail.com> In-Reply-To: <20200120143800.900-1-mirucam@gmail.com> From: Pranit Bauva Since we want to get rid of git-bisect.sh it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit()` to `return `. Follow POSIX conventions to return to indicate error. Turn `exit()` to `return` calls in `handle_bad_merge_base()`. Handle the return value in dependent function check_merge_bases(). Mentored-by: Christian Couder Mentored-by: Johannes Schindelin Signed-off-by: Pranit Bauva Signed-off-by: Tanushree Tumane Signed-off-by: Miriam Rubio --- bisect.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/bisect.c b/bisect.c index 2b80597a1d..acb5a13911 100644 --- a/bisect.c +++ b/bisect.c @@ -756,7 +756,7 @@ static struct commit **get_bad_and_good_commits(struct repository *r, return rev; } -static void handle_bad_merge_base(void) +static int handle_bad_merge_base(void) { if (is_expected_rev(current_bad_oid)) { char *bad_hex = oid_to_hex(current_bad_oid); @@ -777,14 +777,14 @@ static void handle_bad_merge_base(void) "between %s and [%s].\n"), bad_hex, term_bad, term_good, bad_hex, good_hex); } - exit(3); + return -3; } fprintf(stderr, _("Some %s revs are not ancestors of the %s rev.\n" "git bisect cannot work properly in this case.\n" "Maybe you mistook %s and %s revs?\n"), term_good, term_bad, term_good, term_bad); - exit(1); + return -1; } static void handle_skipped_merge_base(const struct object_id *mb) @@ -823,7 +823,8 @@ static int check_merge_bases(int rev_nr, struct commit **rev, int no_checkout) for (; result; result = result->next) { const struct object_id *mb = &result->item->object.oid; if (oideq(mb, current_bad_oid)) { - handle_bad_merge_base(); + res = handle_bad_merge_base(); + break; } else if (0 <= oid_array_lookup(&good_revs, mb)) { continue; } else if (0 <= oid_array_lookup(&skipped_revs, mb)) { -- 2.21.1 (Apple Git-122.3)