From 472692c4fa32d35ce5a5873931e3bde432b8ab51 Mon Sep 17 00:00:00 2001
From: Santiago Carmuega <santiago@carmuega.me>
Date: Mon, 11 Dec 2023 14:06:01 -0300
Subject: [PATCH] feat(rolldb): add method to check if db is empty (#352)

---
 pallas-rolldb/src/chain/store.rs | 4 ++++
 pallas-rolldb/src/wal/store.rs   | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/pallas-rolldb/src/chain/store.rs b/pallas-rolldb/src/chain/store.rs
index 3988334..f809850 100644
--- a/pallas-rolldb/src/chain/store.rs
+++ b/pallas-rolldb/src/chain/store.rs
@@ -265,6 +265,10 @@ impl Store {
         Ok(false)
     }
 
+    pub fn is_empty(&self) -> bool {
+        HashBySlotKV::is_empty(&self.db) && BlockByHashKV::is_empty(&self.db)
+    }
+
     pub fn destroy(path: impl AsRef<Path>) -> Result<(), Error> {
         DB::destroy(&Options::default(), path).map_err(|_| Error::IO)
     }
diff --git a/pallas-rolldb/src/wal/store.rs b/pallas-rolldb/src/wal/store.rs
index 1a7cd92..7f55c42 100644
--- a/pallas-rolldb/src/wal/store.rs
+++ b/pallas-rolldb/src/wal/store.rs
@@ -355,6 +355,10 @@ impl Store {
         Ok(())
     }
 
+    pub fn is_empty(&self) -> bool {
+        WalKV::is_empty(&self.db)
+    }
+
     pub fn destroy(path: impl AsRef<Path>) -> Result<(), Error> {
         DB::destroy(&Options::default(), path).map_err(|_| Error::IO)
     }