Merge branch 'ps/pack-refs-auto' into jt/reftable-geometric-compaction

* ps/pack-refs-auto:
  builtin/gc: pack refs when using `git maintenance run --auto`
  builtin/gc: forward git-gc(1)'s `--auto` flag when packing refs
  t6500: extract objects with "17" prefix
  builtin/gc: move `struct maintenance_run_opts`
  builtin/pack-refs: introduce new "--auto" flag
  builtin/pack-refs: release allocated memory
  refs/reftable: expose auto compaction via new flag
  refs: remove `PACK_REFS_ALL` flag
  refs: move `struct pack_refs_opts` to where it's used
  t/helper: drop pack-refs wrapper
  refs/reftable: print errors on compaction failure
  reftable/stack: gracefully handle failed auto-compaction due to locks
  reftable/stack: use error codes when locking fails during compaction
  reftable/error: discern locked/outdated errors
  reftable/stack: fix error handling in `reftable_stack_init_addition()`

1 files changed, 9 insertions, 2 deletions

diff --git a/refs/reftable-backend.c b/refs/reftable-backend.c
index e206d5a073..0bed6d2ab4 100644
--- a/refs/reftable-backend.c
+++ b/refs/reftable-backend.c
@@ -1203,9 +1203,16 @@ static int reftable_be_pack_refs(struct ref_store *ref_store,
 	if (!stack)
 		stack = refs->main_stack;
 
-	ret = reftable_stack_compact_all(stack, NULL);
-	if (ret)
+	if (opts->flags & PACK_REFS_AUTO)
+		ret = reftable_stack_auto_compact(stack);
+	else
+		ret = reftable_stack_compact_all(stack, NULL);
+	if (ret < 0) {
+		ret = error(_("unable to compact stack: %s"),
+			    reftable_error_str(ret));
 		goto out;
+	}
+
 	ret = reftable_stack_clean(stack);
 	if (ret)
 		goto out;