Add a trie_root_hash variant for chain specs genesis (paritytech#10140

) * Add a `hash` variant for chain specs * Add doc * Rename to TrieRootHash * Apply suggestions from code review Co-authored-by: Bastian Köcher <[email protected]> * Rustfmt * More cargo fmt I guess * Ok I have to use nightly cargo fmt Co-authored-by: Bastian Köcher <[email protected]>
gear-tech · Mar 28, 2022 · d2b45f7 · d2b45f7
1 parent a756d90
commit d2b45f7
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/client/chain-spec/src/chain_spec.rs b/client/chain-spec/src/chain_spec.rs
@@ -119,6 +119,10 @@ impl<G: RuntimeGenesis, E> BuildStorage for ChainSpec<G, E> {
 					})
 					.collect(),
 			}),
+			// The `StateRootHash` variant exists as a way to keep note that other clients support
+			// it, but Substrate itself isn't capable of loading chain specs with just a hash at the
+			// moment.
+			Genesis::StateRootHash(_) => Err("Genesis storage in hash format not supported".into()),
 		}
 	}
 
@@ -144,6 +148,8 @@ pub struct RawGenesis {
 enum Genesis<G> {
 	Runtime(G),
 	Raw(RawGenesis),
+	/// State root hash of the genesis storage.
+	StateRootHash(StorageData),
 }
 
 /// A configuration of a client. Does not include runtime storage initialization.