add cargo fmt to ci (#403)

* add cargo fmt to ci

* rebase on main

* switch to stable

Co-authored-by: Jane Lusby <jane@zfnd.org>

.github/workflows/main.yml

@@ -86,3 +86,18 @@ jobs:
         uses: actions-rs/clippy@master # Next gen Clippy Action, unstable
         with:
           args: --all-features --all-targets
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

zebra-chain/src/addresses/sapling.rs

@@ -98,12 +98,10 @@ impl Arbitrary for SaplingShieldedAddress {
             any::<sapling::Diversifier>(),
             any::<sapling::TransmissionKey>(),
         )
-            .prop_map(|(network, diversifier, transmission_key)| {
-                Self {
-                    network,
-                    diversifier,
-                    transmission_key,
-                }
+            .prop_map(|(network, diversifier, transmission_key)| Self {
+                network,
+                diversifier,
+                transmission_key,
             })
             .boxed()
     }

zebra-chain/src/addresses/sprout.rs

@@ -119,12 +119,10 @@ impl Arbitrary for SproutShieldedAddress {
             array::uniform32(any::<u8>()),
             array::uniform32(any::<u8>()),
         )
-            .prop_map(|(network, paying_key_bytes, transmission_key_bytes)| {
-                Self {
-                    network,
-                    paying_key: sprout::PayingKey(paying_key_bytes),
-                    transmission_key: sprout::TransmissionKey::from(transmission_key_bytes),
-                }
+            .prop_map(|(network, paying_key_bytes, transmission_key_bytes)| Self {
+                network,
+                paying_key: sprout::PayingKey(paying_key_bytes),
+                transmission_key: sprout::TransmissionKey::from(transmission_key_bytes),
             })
             .boxed()
     }

zebra-chain/src/keys/sprout.rs

@@ -297,12 +297,10 @@ impl Arbitrary for IncomingViewingKey {
             array::uniform32(any::<u8>()),
             array::uniform32(any::<u8>()),
         )
-            .prop_map(|(network, paying_key_bytes, receiving_key_bytes)| {
-                Self {
-                    network,
-                    paying_key: PayingKey(paying_key_bytes),
-                    receiving_key: ReceivingKey::from(receiving_key_bytes),
-                }
+            .prop_map(|(network, paying_key_bytes, receiving_key_bytes)| Self {
+                network,
+                paying_key: PayingKey(paying_key_bytes),
+                receiving_key: ReceivingKey::from(receiving_key_bytes),
             })
             .boxed()
     }

zebra-chain/src/transaction/hash.rs

@@ -39,7 +39,7 @@ impl fmt::Debug for TransactionHash {
 
 impl std::str::FromStr for TransactionHash {
     type Err = SerializationError;
-    
+
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         let mut bytes = [0; 32];
         if hex::decode_to_slice(s, &mut bytes[..]).is_err() {
@@ -74,7 +74,10 @@ mod tests {
 
     #[test]
     fn transactionhash_from_str() {
-        let hash:TransactionHash = "bf46b4b5030752fedac6f884976162bbfb29a9398f104a280b3e34d51b416631".parse().unwrap();
+        let hash: TransactionHash =
+            "bf46b4b5030752fedac6f884976162bbfb29a9398f104a280b3e34d51b416631"
+                .parse()
+                .unwrap();
         assert_eq!(
             format!("{:?}", hash),
             r#"TransactionHash("bf46b4b5030752fedac6f884976162bbfb29a9398f104a280b3e34d51b416631")"#

zebra-chain/src/transaction/joinsplit.rs

@@ -159,17 +159,15 @@ impl<P: ZkSnarkProof + Arbitrary + 'static> Arbitrary for JoinSplitData<P> {
             array::uniform32(any::<u8>()),
             vec(any::<u8>(), 64),
         )
-            .prop_map(|(first, rest, pub_key_bytes, sig_bytes)| {
-                Self {
-                    first,
-                    rest,
-                    pub_key: ed25519_zebra::PublicKeyBytes::from(pub_key_bytes),
-                    sig: ed25519_zebra::Signature::from({
-                        let mut b = [0u8; 64];
-                        b.copy_from_slice(sig_bytes.as_slice());
-                        b
-                    }),
-                }
+            .prop_map(|(first, rest, pub_key_bytes, sig_bytes)| Self {
+                first,
+                rest,
+                pub_key: ed25519_zebra::PublicKeyBytes::from(pub_key_bytes),
+                sig: ed25519_zebra::Signature::from({
+                    let mut b = [0u8; 64];
+                    b.copy_from_slice(sig_bytes.as_slice());
+                    b
+                }),
             })
             .boxed()
     }

zebra-chain/src/transaction/shielded_data.rs

@@ -46,19 +46,17 @@ impl Arbitrary for Spend {
             vec(any::<u8>(), 64),
         )
             .prop_map(
-                |(cv_bytes, anchor, nullifier_bytes, rpk_bytes, proof, sig_bytes)| {
-                    Self {
-                        anchor,
-                        cv: cv_bytes,
-                        nullifier: nullifier_bytes,
-                        rk: redjubjub::PublicKeyBytes::from(rpk_bytes),
-                        zkproof: proof,
-                        spend_auth_sig: redjubjub::Signature::from({
-                            let mut b = [0u8; 64];
-                            b.copy_from_slice(sig_bytes.as_slice());
-                            b
-                        }),
-                    }
+                |(cv_bytes, anchor, nullifier_bytes, rpk_bytes, proof, sig_bytes)| Self {
+                    anchor,
+                    cv: cv_bytes,
+                    nullifier: nullifier_bytes,
+                    rk: redjubjub::PublicKeyBytes::from(rpk_bytes),
+                    zkproof: proof,
+                    spend_auth_sig: redjubjub::Signature::from({
+                        let mut b = [0u8; 64];
+                        b.copy_from_slice(sig_bytes.as_slice());
+                        b
+                    }),
                 },
             )
             .boxed()
@@ -108,16 +106,13 @@ impl Arbitrary for Output {
             any::<Groth16Proof>(),
         )
             .prop_map(
-                |(cv, cmu, ephemeral_key_bytes, enc_ciphertext, out_ciphertext, zkproof)| {
-                    Self {
-                        cv,
-                        cmu,
-                        ephemeral_key: jubjub::AffinePoint::from_bytes(ephemeral_key_bytes)
-                            .unwrap(),
-                        enc_ciphertext,
-                        out_ciphertext,
-                        zkproof,
-                    }
+                |(cv, cmu, ephemeral_key_bytes, enc_ciphertext, out_ciphertext, zkproof)| Self {
+                    cv,
+                    cmu,
+                    ephemeral_key: jubjub::AffinePoint::from_bytes(ephemeral_key_bytes).unwrap(),
+                    enc_ciphertext,
+                    out_ciphertext,
+                    zkproof,
                 },
             )
             .boxed()
@@ -214,17 +209,15 @@ impl Arbitrary for ShieldedData {
             vec(any::<Output>(), 0..10),
             vec(any::<u8>(), 64),
         )
-            .prop_map(|(first, rest_spends, rest_outputs, sig_bytes)| {
-                Self {
-                    first,
-                    rest_spends,
-                    rest_outputs,
-                    binding_sig: redjubjub::Signature::from({
-                        let mut b = [0u8; 64];
-                        b.copy_from_slice(sig_bytes.as_slice());
-                        b
-                    }),
-                }
+            .prop_map(|(first, rest_spends, rest_outputs, sig_bytes)| Self {
+                first,
+                rest_spends,
+                rest_outputs,
+                binding_sig: redjubjub::Signature::from({
+                    let mut b = [0u8; 64];
+                    b.copy_from_slice(sig_bytes.as_slice());
+                    b
+                }),
             })
             .boxed()
     }

zebra-network/src/config.rs

@@ -1,7 +1,8 @@
 use std::{
+    collections::HashSet,
     net::{SocketAddr, ToSocketAddrs},
     string::String,
-    time::Duration, collections::HashSet,
+    time::Duration,
 };
 
 use zebra_chain::Network;

zebra-network/src/lib.rs

@@ -64,8 +64,8 @@ pub use crate::{
     config::Config,
     peer_set::init,
     policies::{RetryErrors, RetryLimit},
-    protocol::internal::{Request, Response},
     protocol::external::codec::Builder,
+    protocol::internal::{Request, Response},
 };
 
 /// Types used in the definition of [`Request`] and [`Response`] messages.

zebra-network/src/peer/handshake.rs

@@ -181,8 +181,8 @@ where
                 return Err(HandshakeError::UnexpectedMessage(Box::new(remote_msg)));
             }
 
-            // XXX in zcashd remote peer can only send one version message and 
-            // we would disconnect here if it received a second one. Is it even possible 
+            // XXX in zcashd remote peer can only send one version message and
+            // we would disconnect here if it received a second one. Is it even possible
             // for that to happen to us here?
 
             if remote_version < constants::MIN_VERSION {

zebra-network/src/protocol/external/types.rs

@@ -77,8 +77,6 @@ pub struct Filter(pub Vec<u8>);
 #[cfg(test)]
 mod proptest {
 
-    
-
     use proptest::prelude::*;
 
     use super::Magic;