[09/29] builtin/rev-list: fix leaking bitmap index when calculating disk usage

Commit Message

Patrick Steinhardt June 3, 2024, 9:47 a.m. UTC

git-rev-list(1) can speed up its object size calculations for reachable
objects via a bitmap walk, if there is any bitmap. This is done in
`try_bitmap_disk_usage()`, which tries to optimistically load the bitmap
and then use it, if available. It never frees it though, leading to a
memory leak. Fix this.

Signed-off-by: Patrick Steinhardt <[e-mail]>
---
 builtin/rev-list.c     | 2 ++
 t/t6115-rev-list-du.sh | 2 ++
 2 files changed, 4 insertions(+)

Patch

diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 77803727e0..97d077a994 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -508,6 +508,8 @@  static int try_bitmap_disk_usage(struct rev_info *revs,
 
 	size_from_bitmap = get_disk_usage_from_bitmap(bitmap_git, revs);
 	print_disk_usage(size_from_bitmap);
+
+	free_bitmap_index(bitmap_git);
 	return 0;
 }
 
diff --git a/t/t6115-rev-list-du.sh b/t/t6115-rev-list-du.sh
index c0cfda62fa..21c4a211b1 100755
--- a/t/t6115-rev-list-du.sh
+++ b/t/t6115-rev-list-du.sh
@@ -1,6 +1,8 @@ 
 #!/bin/sh
 
 test_description='basic tests of rev-list --disk-usage'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # we want a mix of reachable and unreachable, as well as