Add block_exists utility function

input-output-hk · Dec 4, 2018 · cf462a8 · cf462a8
1 parent 1627d93
commit cf462a8
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/storage/src/lib.rs b/storage/src/lib.rs
@@ -261,6 +261,14 @@ pub fn block_read(storage: &Storage, hash: &HeaderHash) -> Result<RawBlock> {
     block_read_location(storage, &block_location(storage, hash)?, hash)
 }
 
+pub fn block_exists(storage: &Storage, hash: &HeaderHash) -> Result<bool> {
+    match block_location(storage, hash) {
+        Ok(_) => Ok(true),
+        Err(Error::HashNotFound(_)) => Ok(false),
+        Err(err) => Err(err),
+    }
+}
+
 enum ReverseSearch {
     Continue,
     Found,