Add GitBackingStore::co_getBlobAuxData

Summary: Add coroutine (now_task) version of getBlobAuxData.

Reviewed By: SBones

Differential Revision: D103303129

fbshipit-source-id: 8fc24c2d588104f37d4f3d44103069ee02c98512

Author: janezhang10

eden/fs/store/git/GitBackingStore.cpp

@@ -291,6 +291,14 @@ GitBackingStore::getBlobAuxData(const ObjectId&, const ObjectFetchContextPtr&) {
       nullptr, ObjectFetchContext::Origin::NotFetched};
 }
 
+folly::coro::now_task<BackingStore::GetBlobAuxResult>
+GitBackingStore::co_getBlobAuxData(
+    const ObjectId& id,
+    const ObjectFetchContextPtr& context) {
+  co_return BackingStore::GetBlobAuxResult{
+      nullptr, ObjectFetchContext::Origin::NotFetched};
+}
+
 ImmediateFuture<BackingStore::GetGlobFilesResult> GitBackingStore::getGlobFiles(
     const RootId& /* id */,
     const std::vector<std::string>& /* globs */,

eden/fs/store/git/GitBackingStore.h

@@ -84,6 +84,9 @@ class GitBackingStore final : public BijectiveBackingStore {
   folly::SemiFuture<BackingStore::GetBlobAuxResult> getBlobAuxData(
       const ObjectId& id,
       const ObjectFetchContextPtr& context) override;
+  folly::coro::now_task<BackingStore::GetBlobAuxResult> co_getBlobAuxData(
+      const ObjectId& id,
+      const ObjectFetchContextPtr& context);
   ImmediateFuture<GetGlobFilesResult> getGlobFiles(
       const RootId& id,
       const std::vector<std::string>& globs,