zebrad: rename Syncer to ChainSync

This name clarifies what is being synced and avoids an agent-noun
construction.

zebrad/src/commands/start.rs

@@ -22,7 +22,7 @@
 use crate::components::tokio::RuntimeRun;
 use crate::config::ZebradConfig;
 use crate::{
-    components::{tokio::TokioComponent, Syncer},
+    components::{tokio::TokioComponent, ChainSync},
     prelude::*,
 };
 
@@ -61,7 +61,7 @@ impl StartCmd {
         );
         let (peer_set, _address_book) = zebra_network::init(config.network.clone(), node).await;
 
-        let mut syncer = Syncer::new(config.network.network, peer_set, state, verifier);
+        let mut syncer = ChainSync::new(config.network.network, peer_set, state, verifier);
 
         syncer.sync().await
     }

zebrad/src/components.rs

@@ -3,4 +3,4 @@ mod sync;
 pub mod tokio;
 pub mod tracing;
 
-pub use sync::Syncer;
+pub use sync::ChainSync;

zebrad/src/components/sync.rs

@@ -106,7 +106,7 @@ struct CheckedTip {
 }
 
 #[derive(Debug)]
-pub struct Syncer<ZN, ZS, ZV>
+pub struct ChainSync<ZN, ZS, ZV>
 where
     ZN: Service<zn::Request, Response = zn::Response, Error = Error> + Send + Clone + 'static,
     ZN::Future: Send,
@@ -127,7 +127,7 @@ where
     genesis_hash: block::Hash,
 }
 
-impl<ZN, ZS, ZV> Syncer<ZN, ZS, ZV>
+impl<ZN, ZS, ZV> ChainSync<ZN, ZS, ZV>
 where
     ZN: Service<zn::Request, Response = zn::Response, Error = Error> + Send + Clone + 'static,
     ZN::Future: Send,