feat: added a poc relayer implementation

.env.example

@@ -13,4 +13,4 @@ ETH_TESTNET_TYPE="pow"
 # Optional field to specify the revision (in the form of a commit hash) of the SP1 operator
 # If not specified the default revision from justfile will be used when building the operator with `just install-operator`
 # Format: SP1_OPERATOR_REV={a commit hash of `https://github.com/cosmos/sp1-ics07-tendermint`}
-# Example: SP1_OPERATOR_REV=07e23bba5000c9d67dfc1d975ac477164e56db1f
+# Example: SP1_OPERATOR_REV=f67f5fec9423a4744092ee98b62bc60e3354f223

.github/setup/action.yml

@@ -5,10 +5,18 @@ runs:
   steps:
     - name: "Check out the repo"
       uses: "actions/checkout@v4"
+    - name: Install stable toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        components: rustfmt, clippy
     - name: "Install Foundry"
       uses: "foundry-rs/foundry-toolchain@v1"
     - name: "Install Bun"
       uses: "oven-sh/setup-bun@v2"
     - name: "Install the Node.js dependencies"
       shell: bash
-      run: "bun install"
+      run: bun install
+    - name: Setup Protoc
+      uses: taiki-e/install-action@protoc

.github/workflows/e2e.yml

@@ -27,7 +27,7 @@ on:
       - 'bun.lockb'
 env:
   FOUNDRY_PROFILE: ci
-  SP1_OPERATOR_REV: 07e23bba5000c9d67dfc1d975ac477164e56db1f
+  SP1_OPERATOR_REV: f67f5fec9423a4744092ee98b62bc60e3354f223
 permissions:
   contents: read
 
@@ -66,6 +66,7 @@ jobs:
           - TestWithIbcEurekaTestSuite/TestICS20TransferNativeCosmosCoinsToEthereumAndBack_Plonk
           - TestWithIbcEurekaTestSuite/TestICS20TransferTimeoutFromEthereumToCosmosChain_Groth16
           - TestWithIbcEurekaTestSuite/TestICS20TransferTimeoutFromEthereumToCosmosChain_Plonk
+          - TestWithRelayerTestSuite/TestRelayerInfo
     name: ${{ matrix.test }}
     runs-on: ubuntu-latest
     env:
@@ -80,39 +81,52 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v4
         with:
-          go-version: "1.22"
+          go-version: "1.23"
           check-latest: true
           cache-dependency-path: e2e/interchaintestv8/go.sum
 
-      - name: Install rust toolchain
+      - name: Install stable toolchain
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2024-10-11
+          toolchain: stable
+          components: rustfmt, clippy
 
       - name: "Cache Operator"
         id: cache-operator
         uses: actions/cache@v4
         with:
-          path: |
-            ~/.cargo/bin/
+          path: ~/.cargo/bin/operator
           key: ${{ runner.os }}-operator-${{ env.SP1_OPERATOR_REV }}
 
+      - name: "Cache Relayer"
+        id: cache-relayer
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/bin/relayer
+          key: ${{ runner.os }}-relayer-${{ hashFiles('Cargo.lock', 'packages/**', 'relayer/**') }}
+
       - name: Install SP1 toolchain
-        if: steps.cache-operator.outputs.cache-hit != 'true'
+        if: (steps.cache-operator.outputs.cache-hit != 'true') || (steps.cache-relayer.outputs.cache-hit != 'true')
         run: |
           curl -L https://sp1.succinct.xyz | bash
-          ~/.sp1/bin/sp1up 
+          ~/.sp1/bin/sp1up --token ${{ secrets.GITHUB_TOKEN }}
           ~/.sp1/bin/cargo-prove prove --version
 
       - name: Install operator
         if: steps.cache-operator.outputs.cache-hit != 'true'
         uses: actions-rs/cargo@v1
         with:
-          toolchain: nightly-2024-10-11
           command: install
           args: --git https://github.com/cosmos/sp1-ics07-tendermint --rev ${{ env.SP1_OPERATOR_REV }} sp1-ics07-tendermint-operator --bin operator --locked
 
+      - name: Install relayer
+        if: steps.cache-relayer.outputs.cache-hit != 'true'
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: --bin relayer --path relayer --locked
+
       - name: Setup Kurtosis
         if: env.ETH_TESTNET_TYPE == 'pos'
         run: |

.github/workflows/rust.yml

@@ -0,0 +1,77 @@
+# Based on https://github.com/actions-rs/example/blob/master/.github/workflows/quickstart.yml
+name: rust
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  lints:
+    name: fmt-and-clippy
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: "Set up environment"
+        uses: ./.github/setup
+
+      - name: Install SP1 toolchain
+        shell: bash
+        run: |
+          curl -L https://sp1.succinct.xyz | bash
+          ~/.sp1/bin/sp1up --token ${{ secrets.GITHUB_TOKEN }}
+          ~/.sp1/bin/cargo-prove prove --version
+
+      - name: Run cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+      - name: Run cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+
+  tests:
+    name: unit-tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+      - name: Install SP1 toolchain
+        shell: bash
+        run: |
+          curl -L https://sp1.succinct.xyz | bash
+          ~/.sp1/bin/sp1up --token ${{ secrets.GITHUB_TOKEN }}
+          ~/.sp1/bin/cargo-prove prove --version
+      - name: "Set up environment"
+        uses: ./.github/setup
+      - name: Install just
+        uses: extractions/setup-just@v2
+      - name: Run unit tests
+        run: just test-cargo
+        env:
+          RUST_BACKTRACE: 1
+
+  build-relayer:
+    name: build-relayer
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+      - name: "Set up environment"
+        uses: ./.github/setup
+      - name: Install SP1 toolchain
+        shell: bash
+        run: |
+          curl -L https://sp1.succinct.xyz | bash
+          ~/.sp1/bin/sp1up --token ${{ secrets.GITHUB_TOKEN }}
+          ~/.sp1/bin/cargo-prove prove --version
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --bin relayer --release --locked

.gitignore

@@ -22,3 +22,9 @@ broadcast/*/31337/
 # ide files
 .idea/
 *.iml
+
+# Rust
+target
+
+# Config files and test artifacts
+relayer/config.json