Add specific CI flow for PR

.github/workflows/pull_request.yml

@@ -0,0 +1,59 @@
+name: Rust CI Flow for Pull Requests
+
+on:
+  pull_request:
+    branches: [ "main", "devel" ]
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - name: Enforce formatting
+        run: cargo fmt --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - uses: Swatinem/rust-cache@v2
+      - name: Linting
+        run: cargo clippy --no-deps -- -D warnings
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    needs: [clippy, fmt]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Install tarpaulin
+        run: cargo install cargo-tarpaulin
+      - name: Tests
+        run: cargo test -- --include-ignored
+        env:
+          MAILJET_API_KEY: ${{ secrets.MAILJET_API_KEY }}
+          MAILJET_API_USER: ${{ secrets.MAILJET_API_USER }}
+          MAILJET_FROM_EMAIL: ${{ vars.MAILJET_FROM_EMAIL }}
+      - name: Generate code coverage
+        run: cargo tarpaulin --verbose --all-features --timeout 120 --out xml
+        env:
+            MAILJET_API_KEY: ${{ secrets.MAILJET_API_KEY }}
+            MAILJET_API_USER: ${{ secrets.MAILJET_API_USER }}
+            MAILJET_FROM_EMAIL: ${{ vars.MAILJET_FROM_EMAIL }}
+      - name: Upload coverage to codecov.io
+        uses: codecov/[email protected]
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true