pseudo-merge.c: do not generate empty pseudo-merge commits
The previous commit demonstrated it is possible to generate empty pseudo-merge commits, which is not useful as such pseudo-merges carry no information. Ensure that we only generate non-empty groups by not pushing a new commit onto the bitmap_writer when that commit has no parents. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Taylor Blau committed
Aug 15, 2024 at 13:31 UTC
25b78668de62ac2f503ee5957e174474bd51ae6c
2 files changed
+8
-5
pseudo-merge.c
+7
-4
index f0fde13c47..6422be979c 100644
--- a/pseudo-merge.c
+++ b/pseudo-merge.c
@@ -357,8 +357,10 @@ static void select_pseudo_merges_1(struct bitmap_writer *writer,
p = commit_list_append(c, p);
} while (j % group->stable_size);
- bitmap_writer_push_commit(writer, merge, 1);
- writer->pseudo_merges_nr++;
+ if (merge->parents) {
+ bitmap_writer_push_commit(writer, merge, 1);
+ writer->pseudo_merges_nr++;
+ }
}
/* make up to group->max_merges pseudo merges for unstable commits */
@@ -398,8 +400,9 @@ static void select_pseudo_merges_1(struct bitmap_writer *writer,
p = commit_list_append(c, p);
}
- bitmap_writer_push_commit(writer, merge, 1);
- writer->pseudo_merges_nr++;
+ if (merge->parents) {
+ bitmap_writer_push_commit(writer, merge, 1);
+ writer->pseudo_merges_nr++; }
if (end >= matches->unstable_nr)
break;
}
t/t5333-pseudo-merge-bitmaps.sh
+1
-1
index 0288691340..aa1a7d26f1 100755
--- a/t/t5333-pseudo-merge-bitmaps.sh
+++ b/t/t5333-pseudo-merge-bitmaps.sh
@@ -390,7 +390,7 @@ test_expect_success 'pseudo-merge reuse' '
)
'
-test_expect_failure 'empty pseudo-merge group' '
+test_expect_success 'empty pseudo-merge group' '
git init pseudo-merge-empty-group &&
(
cd pseudo-merge-empty-group &&