From 2fe95f494cde6cb3c3e6894bb687961b28b1764b Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 22 Feb 2019 11:26:43 -0800 Subject: format-patch: notice failure to open cover letter for writing The make_cover_letter() function is supposed to open a new file for writing, and let the caller write into it via FILE *rev->diffopt.file but because the function does not return anything, the caller does not bother checking the return value. Make sure it dies, instead of keep going with a NULL output filestream and relying on it to cause a crash, when it fails to open the file. Signed-off-by: Junio C Hamano --- t/t4014-format-patch.sh | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 't/t4014-format-patch.sh') diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh index 909c743c13..b6e2fdbc44 100755 --- a/t/t4014-format-patch.sh +++ b/t/t4014-format-patch.sh @@ -589,6 +589,12 @@ test_expect_success 'excessive subject' ' ls patches/0004-This-is-an-excessively-long-subject-line-for-a-messa.patch ' +test_expect_success 'failure to write cover-letter aborts gracefully' ' + test_when_finished "rmdir 0000-cover-letter.patch" && + mkdir 0000-cover-letter.patch && + test_must_fail git format-patch --no-renames --cover-letter -1 +' + test_expect_success 'cover-letter inherits diff options' ' git mv file foo && git commit -m foo && -- cgit v1.3-6-g1900