add github workflow

Author: Matej Almasi

.github/workflows/main.yml

@@ -0,0 +1,74 @@
+name: PR Validation
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "src"
+      - "Cargo*"
+      - ".cargo"
+      - ".github/workflows/main.yml"
+      - "rustfmt.toml"
+  push:
+    branches:
+      - main
+    paths:
+      - "src"
+      - "Cargo*"
+      - ".cargo"
+      - ".github/workflows/main.yml"
+      - "rustfmt.toml"
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Build
+        run: cargo build --verbose
+
+      - name: Test
+        run: cargo test --verbose
+
+  format:
+    needs: build-and-test
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install nightly
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: nightly
+          components: rustfmt
+
+      - name: Format
+        run: cargo +nightly fmt --check
+
+  clippy:
+    needs: build-and-test
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Clippy lint
+        run: cargo clippy -- -D warnings