misc: add rustfmt.toml (#320)

.github/workflows/test.yml

@@ -36,6 +36,13 @@ jobs:
           echo "GEYSER_PLUGIN_NAME=$plugin_name" | tee -a $GITHUB_ENV
           echo "GEYSER_PLUGIN_LIB=lib${plugin_lib_name}" | tee -a $GITHUB_ENV
 
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+          profile: minimal
+          components: rustfmt
+
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{ env.RUST_STABLE }}
@@ -65,7 +72,7 @@ jobs:
           cargo tree --frozen
 
       - name: cargo fmt
-        run: cargo fmt --all -- --check
+        run: cargo +nightly fmt --all -- --check
 
       - name: cargo deny check advisories
         uses: EmbarkStudios/cargo-deny-action@v1

rustfmt.toml

@@ -0,0 +1,3 @@
+edition = "2021"
+imports_granularity = "One"
+group_imports = "One"

yellowstone-grpc-client/src/lib.rs

@@ -1,3 +1,4 @@
+pub use tonic::service::Interceptor;
 use {
     bytes::Bytes,
     futures::{
@@ -23,8 +24,6 @@ use {
     },
 };
 
-pub use tonic::service::Interceptor;
-
 #[derive(Debug, Clone)]
 pub struct InterceptorXToken {
     pub x_token: Option<AsciiMetadataValue>,

yellowstone-grpc-geyser/src/filters.rs

@@ -839,8 +839,7 @@ mod tests {
         },
         solana_sdk::{
             hash::Hash,
-            message::Message as SolMessage,
-            message::{v0::LoadedAddresses, MessageHeader},
+            message::{v0::LoadedAddresses, Message as SolMessage, MessageHeader},
             pubkey::Pubkey,
             signer::{keypair::Keypair, Signer},
             transaction::{SanitizedTransaction, Transaction},

yellowstone-grpc-proto/src/lib.rs

@@ -13,12 +13,10 @@ pub mod solana {
 }
 
 pub mod prelude {
-    pub use super::geyser::*;
-    pub use super::solana::storage::confirmed_block::*;
+    pub use super::{geyser::*, solana::storage::confirmed_block::*};
 }
 
-pub use prost;
-pub use tonic;
+pub use {prost, tonic};
 
 pub mod convert_to {
     use {