RPC: Provide earliest block information from /status

.changelog/unreleased/breaking-changes/1321-status-earliest-block.md

@@ -0,0 +1,5 @@
+- [`tendermint-rpc`] Decode the earliest block data fields of the `sync_info`
+ object in `/status` response and expose them in the `SyncInfo` struct:
+ `earliest_block_hash`, `earliest_app_hash`, `earliest_block_height`,
+ `earliest_block_time`
+ ([\#1321](https://github.com/informalsystems/tendermint-rs/pull/1321)).

rpc/src/endpoint/status.rs

@@ -41,6 +41,20 @@ impl crate::Response for Response {}
 /// Sync information
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct SyncInfo {
+ /// Earliest block hash
+ #[serde(with = "tendermint::serializers::hash")]
+ pub earliest_block_hash: Hash,
+
+ /// Earliest app hash
+ #[serde(with = "tendermint::serializers::apphash")]
+ pub earliest_app_hash: AppHash,
+
+ /// Earliest block height
+ pub earliest_block_height: block::Height,
+
+ /// Earliest block time
+ pub earliest_block_time: Time,
+
  /// Latest block hash
  #[serde(with = "tendermint::serializers::hash")]
  pub latest_block_hash: Hash,

rpc/tests/kvstore_fixtures/v0_34.rs

@@ -710,11 +710,24 @@ fn incoming_fixtures() {
  );
  assert_eq!(result.node_info.version.to_string(), "0.34.21");
  assert!(!result.sync_info.catching_up);
+ assert!(result.sync_info.earliest_app_hash.as_bytes().is_empty());
+ assert!(!result.sync_info.earliest_block_hash.is_empty());
+ assert_eq!(result.sync_info.earliest_block_height.value(), 1);
+ assert!(
+ result
+ .sync_info
+ .earliest_block_time
+ .duration_since(informal_epoch)
+ .unwrap()
+ .as_secs()
+ > 0
+ );
  assert_eq!(
  result.sync_info.latest_app_hash.as_bytes(),
  [6, 0, 0, 0, 0, 0, 0, 0]
  );
  assert!(!result.sync_info.latest_block_hash.is_empty());
+ assert_eq!(result.sync_info.latest_block_height.value(), 67);
  assert!(
  result
  .sync_info

rpc/tests/kvstore_fixtures/v0_37.rs

@@ -709,11 +709,24 @@ fn incoming_fixtures() {
  );
  assert_eq!(result.node_info.version.to_string(), "0.37.0-alpha.3");
  assert!(!result.sync_info.catching_up);
+ assert!(result.sync_info.earliest_app_hash.as_bytes().is_empty());
+ assert!(!result.sync_info.earliest_block_hash.is_empty());
+ assert_eq!(result.sync_info.earliest_block_height.value(), 1);
+ assert!(
+ result
+ .sync_info
+ .earliest_block_time
+ .duration_since(informal_epoch)
+ .unwrap()
+ .as_secs()
+ > 0
+ );
  assert_eq!(
  result.sync_info.latest_app_hash.as_bytes(),
  [6, 0, 0, 0, 0, 0, 0, 0]
  );
  assert!(!result.sync_info.latest_block_hash.is_empty());
+ assert_eq!(result.sync_info.latest_block_height.value(), 53);
  assert!(
  result
  .sync_info