midx: respect 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP'

Introduce a new 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP' environment
variable to also write a multi-pack bitmap when
'GIT_TEST_MULTI_PACK_INDEX' is set.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/midx.h b/midx.h
index 350f4d0a7b..aa3da557bb 100644
--- a/midx.h
+++ b/midx.h
@@ -8,6 +8,8 @@ struct pack_entry;
 struct repository;
 
 #define GIT_TEST_MULTI_PACK_INDEX "GIT_TEST_MULTI_PACK_INDEX"
+#define GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP \
+	"GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP"
 
 struct multi_pack_index {
 	struct multi_pack_index *next;