Re: [PATCH] format-patch: clear UNINTERESTING flag before prepare_bases

>When users specify the commit range with 'Z..C' pattern for format-patch, all
>the parents of Z (including Z) would be marked as UNINTERESTING which would
>prevent revision walk in prepare_bases from getting the prerequisite commits,
>thus `git format-patch --base <base_commit_sha> Z..C` won't be able to generate
>the list of prerequisite patch ids. Clear UNINTERESTING flag with
>clear_object_flags solves this issue.
>
>Reported-by: Eduardo Habkost <ehabkost@redhat.com>
>Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
>---
> builtin/log.c           | 1 +
> t/t4014-format-patch.sh | 6 ++++--
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
>diff --git a/builtin/log.c b/builtin/log.c
>index 4686f68594..01993de6fe 100644
>--- a/builtin/log.c
>+++ b/builtin/log.c
>@@ -1746,6 +1746,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
> 	if (base_commit || base_auto) {
> 		struct commit *base = get_base_commit(base_commit, list, nr);
> 		reset_revision_walk();
>+		clear_object_flags(UNINTERESTING);
> 		prepare_bases(&bases, base, list, nr);
> 	}
> 
>diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
>index 028d5507a6..53880da7bb 100755
>--- a/t/t4014-format-patch.sh
>+++ b/t/t4014-format-patch.sh
>@@ -1554,13 +1554,15 @@ test_expect_success 'format-patch -o overrides format.outputDirectory' '
> 
> test_expect_success 'format-patch --base' '
> 	git checkout side &&
>-	git format-patch --stdout --base=HEAD~3 -1 | tail -n 7 >actual &&
>+	git format-patch --stdout --base=HEAD~3 -1 | tail -n 7 >actual1 &&
>+	git format-patch --stdout --base=HEAD~3 HEAD~.. | tail -n 7 >actual2 &&
> 	echo >expected &&
> 	echo "base-commit: $(git rev-parse HEAD~3)" >>expected &&
> 	echo "prerequisite-patch-id: $(git show --patch HEAD~2 | git patch-id --stable | awk "{print \$1}")" >>expected &&
> 	echo "prerequisite-patch-id: $(git show --patch HEAD~1 | git patch-id --stable | awk "{print \$1}")" >>expected &&
> 	signature >> expected &&
>-	test_cmp expected actual
>+	test_cmp expected actual1 &&
>+	test_cmp expected actual2
> '
> 
> test_expect_success 'format-patch --base errors out when base commit is in revision list' '
>-- 
>2.16.GIT
>