coccicheck: fail "make" when it fails

With "make coccicheck", we generate contrib/coccinelle/*.cocci.patch files that contain changes suggested by semantic patches, but "make" succeeds. Admittedly, not many developers may run "make coccicheck" in the first place, but it makes it harder to notice when they do run it after they introduced an iffy piece of code. Check that the resulting cocci.patch files are all empty. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Jun 23, 2025 at 09:14 UTC 819d3a55fc5a530f90309c2d208101765e8fe78d
1 file changed +5 -2
Makefile
+5 -2
index 97e8385b66..8f1e9424a7 100644 --- a/Makefile +++ b/Makefile @@ -3422,11 +3422,14 @@ endif coccicheck-test: $(COCCI_TEST_RES_GEN) coccicheck: coccicheck-test + ifdef SPATCH_CONCAT_COCCI -coccicheck: contrib/coccinelle/ALL.cocci.patch +COCCICHECK_PATCH_MUST_BE_EMPTY_FILES = contrib/coccinelle/ALL.cocci.patch else -coccicheck: $(COCCICHECK_PATCHES_INTREE) +COCCICHECK_PATCH_MUST_BE_EMPTY_FILES = $(COCCICHECK_PATCHES_INTREE) endif +coccicheck: $(COCCICHECK_PATCH_MUST_BE_EMPTY_FILES) + ! grep -q ^ $(COCCICHECK_PATCH_MUST_BE_EMPTY_FILES) /dev/null # See contrib/coccinelle/README coccicheck-pending: coccicheck-test