Add ci with build/slither/solhint (#6)

Author: aviggiano

.github/workflows/ci.yml

@@ -0,0 +1,74 @@
+name: CI
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    strategy:
+      fail-fast: true
+
+    name: Foundry
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Setup Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Format
+        run: |
+          forge fmt --check
+        id: fmt
+
+      - name: Build
+        run: |
+          forge build
+        id: build
+
+  slither:
+    strategy:
+      fail-fast: true
+
+    name: Slither
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Setup Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Run Slither
+        uses: crytic/slither-action@v0.3.0
+        id: slither
+        with:
+          fail-on: low
+
+  solhint:
+    strategy:
+      fail-fast: true
+
+    name: Solhint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Install dependencies
+        run: npm install --global solhint
+
+      - name: Run solhint
+        run: solhint

slither.config.json

@@ -0,0 +1,4 @@
+{
+  "filter_paths": "(lib/|test/)",
+  "exclude_informational": true
+}

src/Hevm.sol

@@ -18,7 +18,7 @@ interface IHevm {
     function sign(uint256 privateKey, bytes32 digest) external returns (uint8 r, bytes32 v, bytes32 s);
 
     // Gets address for a given private key
-    function addr(uint256 privateKey) external returns (address addr);
+    function addr(uint256 privateKey) external returns (address account);
 
     // Performs a foreign function call via terminal
     function ffi(string[] calldata inputs) external returns (bytes memory result);