From: Pranit Bauva via GitGitGadget Date: Sun, 24 Feb 2019 10:11:21 GMT Subject: [PATCH 08/26] bisect.c: libify `handle_bad_merge_base` and its dependants Message-ID: <1e8459ee7ceec845fd7c956e33c22d8158261d73.1551003074.git.gitgitgadget@gmail.com> In-Reply-To: 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/libify this return in dependant methods - `check_merge_bases()`. Mentored-by: Christian Couder Mentored-by: Johannes Schindelin Signed-off-by: Pranit Bauva Signed-off-by: Tanushree Tumane --- bisect.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/bisect.c b/bisect.c index 87db1cc4be..b1ea658a75 100644 --- a/bisect.c +++ b/bisect.c @@ -751,7 +751,7 @@ static struct commit **get_bad_and_good_commits(int *rev_nr) 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); @@ -772,14 +772,14 @@ 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) @@ -818,7 +818,8 @@ 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)) { -- gitgitgadget