Migrate finality-grandpa to the 2018 edition (paritytech#1797)

Author: stanislav-tkach

Cargo.lock

@@ -2,33 +2,31 @@
 name = "substrate-finality-grandpa"
 version = "0.1.0"
 authors = ["Parity Technologies <[email protected]>"]
+edition = "2018"
 
 [dependencies]
 futures = "0.1"
-parity-codec = "3.0"
-parity-codec-derive = "3.0"
-sr-primitives = { path = "../sr-primitives" }
-substrate-consensus-common = { path = "../consensus/common" }
-substrate-primitives = { path = "../primitives" }
-substrate-client = { path = "../client" }
-substrate-network = { path = "../network" }
-substrate-service = { path = "../service", optional = true }
 log = "0.4"
 parking_lot = "0.7.1"
 tokio = "0.1.7"
-substrate-finality-grandpa-primitives = { path = "primitives" }
 rand = "0.6"
-
-[dependencies.finality-grandpa]
-version = "0.6.0"
-features = ["derive-codec"]
+parity-codec = "3.0"
+parity-codec-derive = "3.0"
+runtime_primitives = { package = "sr-primitives", path = "../sr-primitives" }
+consensus_common = { package = "substrate-consensus-common", path = "../consensus/common" }
+substrate-primitives = { path = "../primitives" }
+client = { package = "substrate-client", path = "../client" }
+network = { package = "substrate-network", path = "../network" }
+service = { package = "substrate-service", path = "../service", optional = true }
+fg_primitives = { package = "substrate-finality-grandpa-primitives", path = "primitives" }
+grandpa = { package = "finality-grandpa", version = "0.6.0", features = ["derive-codec"] }
 
 [dev-dependencies]
-substrate-network = { path = "../network", features = ["test-helpers"] }
-substrate-keyring = { path = "../keyring" }
-substrate-test-client = { path = "../test-client"}
+network = { package = "substrate-network", path = "../network", features = ["test-helpers"] }
+keyring = { package = "substrate-keyring", path = "../keyring" }
+test_client = { package = "substrate-test-client", path = "../test-client"}
 env_logger = "0.6"
 
 [features]
 default = ["service-integration"]
-service-integration = ["substrate-service"]
+service-integration = ["service"]

core/finality-grandpa/Cargo.toml

@@ -2,22 +2,23 @@
 name = "substrate-finality-grandpa-primitives"
 version = "0.1.0"
 authors = ["Parity Technologies <[email protected]>"]
+edition = "2018"
 
 [dependencies]
-substrate-client = { path = "../../client", default-features = false }
+client = { package = "substrate-client", path = "../../client", default-features = false }
 substrate-primitives = { path = "../../primitives", default-features = false }
 parity-codec = { version = "3.0", default-features = false }
 parity-codec-derive = { version = "3.0", default-features = false }
 sr-primitives = { path = "../../sr-primitives", default-features = false }
-sr-std = { path = "../../sr-std", default-features = false }
+rstd = { package = "sr-std", path = "../../sr-std", default-features = false }
 
 [features]
 default = ["std"]
 std = [
 	"substrate-primitives/std",
-	"substrate-client/std",
+	"client/std",
 	"parity-codec/std",
 	"parity-codec-derive/std",
 	"sr-primitives/std",
-	"sr-std/std",
+	"rstd/std",
 ]

core/finality-grandpa/primitives/Cargo.toml

@@ -22,20 +22,10 @@
 #[cfg(not(feature = "std"))]
 extern crate alloc;
 
-extern crate substrate_primitives;
-extern crate sr_primitives;
-extern crate parity_codec;
-
-#[macro_use]
-extern crate parity_codec_derive;
-
-#[macro_use]
-extern crate substrate_client as client;
-
-extern crate sr_std as rstd;
-
+use parity_codec_derive::{Encode, Decode};
 use substrate_primitives::Ed25519AuthorityId;
 use sr_primitives::traits::{DigestFor, NumberFor};
+use client::decl_runtime_apis;
 use rstd::vec::Vec;
 
 /// A scheduled change of authority set.

core/finality-grandpa/primitives/src/lib.rs

@@ -19,6 +19,8 @@
 use parking_lot::RwLock;
 use substrate_primitives::Ed25519AuthorityId;
 use grandpa::VoterSet;
+use parity_codec_derive::{Encode, Decode};
+use log::{debug, info};
 
 use std::cmp::Ord;
 use std::fmt::Debug;
@@ -276,7 +278,7 @@ impl<H, N: Add<Output=N> + Clone> PendingChange<H, N> {
 mod tests {
 	use super::*;
 
-	fn ignore_existing_changes<A>(_a: &A) -> Result<(), ::Error> {
+	fn ignore_existing_changes<A>(_a: &A) -> Result<(), crate::Error> {
 		Ok(())
 	}
 

core/finality-grandpa/src/authorities.rs

@@ -23,11 +23,12 @@ use std::sync::Arc;
 use grandpa::VoterSet;
 use futures::prelude::*;
 use futures::sync::mpsc;
-use codec::{Encode, Decode};
+use log::{debug, trace};
+use parity_codec::{Encode, Decode};
 use substrate_primitives::{ed25519, Ed25519AuthorityId};
 use runtime_primitives::traits::Block as BlockT;
 use tokio::timer::Interval;
-use {Error, Network, Message, SignedMessage, Commit, CompactCommit};
+use crate::{Error, Network, Message, SignedMessage, Commit, CompactCommit};
 
 fn localized_payload<E: Encode>(round: u64, set_id: u64, message: &E) -> Vec<u8> {
 	(message, round, set_id).encode()
@@ -245,9 +246,9 @@ pub(crate) fn check_message_sig<Block: BlockT>(
 	round: u64,
 	set_id: u64,
 ) -> Result<(), ()> {
-	let as_public = ::ed25519::Public::from_raw(id.0);
+	let as_public = ed25519::Public::from_raw(id.0);
 	let encoded_raw = localized_payload(round, set_id, message);
-	if ::ed25519::verify_strong(signature, &encoded_raw, as_public) {
+	if ed25519::verify_strong(signature, &encoded_raw, as_public) {
 		Ok(())
 	} else {
 		debug!(target: "afg", "Bad signature on message from {:?}", id);

core/finality-grandpa/src/communication.rs

@@ -15,6 +15,7 @@
 // along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::sync::Arc;
+use parity_codec_derive::{Encode, Decode};
 
 /// Consensus-related data changes tracker.
 #[derive(Clone, Debug, Encode, Decode)]

core/finality-grandpa/src/consensus_changes.rs

@@ -18,7 +18,8 @@ use std::fmt;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
 
-use codec::Encode;
+use log::{debug, warn, info};
+use parity_codec::Encode;
 use futures::prelude::*;
 use tokio::timer::Delay;
 
@@ -38,10 +39,10 @@ use crate::{
 	AUTHORITY_SET_KEY, CONSENSUS_CHANGES_KEY, LAST_COMPLETED_KEY,
 	Commit, Config, Error, Network, Precommit, Prevote, LastCompleted,
 };
-use authorities::{AuthoritySet, SharedAuthoritySet};
-use consensus_changes::SharedConsensusChanges;
-use justification::GrandpaJustification;
-use until_imported::UntilVoteTargetImported;
+use crate::authorities::{AuthoritySet, SharedAuthoritySet};
+use crate::consensus_changes::SharedConsensusChanges;
+use crate::justification::GrandpaJustification;
+use crate::until_imported::UntilVoteTargetImported;
 
 /// The environment we run GRANDPA in.
 pub(crate) struct Environment<B, E, Block: BlockT, N: Network<Block>, RA> {
@@ -246,7 +247,7 @@ impl<B, E, Block: BlockT<Hash=H256>, N, RA> voter::Environment<Block::Hash, Numb
 		let prevote_timer = Delay::new(now + self.config.gossip_duration * 2);
 		let precommit_timer = Delay::new(now + self.config.gossip_duration * 4);
 
-		let incoming = ::communication::checked_message_stream::<Block, _>(
+		let incoming = crate::communication::checked_message_stream::<Block, _>(
 			round,
 			self.set_id,
 			self.network.messages_for(round, self.set_id),
@@ -256,7 +257,7 @@ impl<B, E, Block: BlockT<Hash=H256>, N, RA> voter::Environment<Block::Hash, Numb
 		let local_key = self.config.local_key.as_ref()
 			.filter(|pair| self.voters.contains_key(&pair.public().into()));
 
-		let (out_rx, outgoing) = ::communication::outgoing_messages::<Block, _>(
+		let (out_rx, outgoing) = crate::communication::outgoing_messages::<Block, _>(
 			round,
 			self.set_id,
 			local_key.cloned(),

core/finality-grandpa/src/environment.rs

@@ -36,15 +36,16 @@ use client::{
 	error::{Error as ClientError, ErrorKind as ClientErrorKind, Result as ClientResult},
 	light::fetcher::RemoteCallRequest,
 };
-use codec::{Encode, Decode};
+use parity_codec::{Encode, Decode};
+use parity_codec_derive::{Encode, Decode};
 use grandpa::BlockNumberOps;
 use runtime_primitives::generic::BlockId;
 use runtime_primitives::traits::{
 	NumberFor, Block as BlockT, Header as HeaderT, One,
 };
 use substrate_primitives::{Ed25519AuthorityId, H256};
 
-use justification::GrandpaJustification;
+use crate::justification::GrandpaJustification;
 
 /// Prepare proof-of-finality for the given block.
 ///

core/finality-grandpa/src/finality_proof.rs

@@ -16,7 +16,8 @@
 
 use std::sync::Arc;
 
-use codec::Encode;
+use log::{debug, trace, info};
+use parity_codec::Encode;
 use futures::sync::mpsc;
 
 use client::{blockchain, CallExecutor, Client};
@@ -35,10 +36,10 @@ use runtime_primitives::traits::{
 use substrate_primitives::{H256, Ed25519AuthorityId, Blake2Hasher};
 
 use crate::{AUTHORITY_SET_KEY, Error};
-use authorities::SharedAuthoritySet;
-use consensus_changes::SharedConsensusChanges;
-use environment::{canonical_at_height, finalize_block, ExitOrError, NewAuthoritySet};
-use justification::GrandpaJustification;
+use crate::authorities::SharedAuthoritySet;
+use crate::consensus_changes::SharedConsensusChanges;
+use crate::environment::{canonical_at_height, finalize_block, ExitOrError, NewAuthoritySet};
+use crate::justification::GrandpaJustification;
 
 /// A block-import handler for GRANDPA.
 ///
@@ -123,7 +124,7 @@ impl<B, E, Block: BlockT<Hash=H256>, RA, PRA> BlockImport<Block>
 	fn import_block(&self, mut block: ImportBlock<Block>, new_authorities: Option<Vec<Ed25519AuthorityId>>)
 		-> Result<ImportResult, Self::Error>
 	{
-		use authorities::PendingChange;
+		use crate::authorities::PendingChange;
 		use client::blockchain::HeaderBackend;
 
 		let hash = block.post_header().hash();