Setup CI

.github/workflows/ci.yaml

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+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  rustfmt:
+    name: Check style
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        id: toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          target: x86_64-unknown-linux-musl
+          components: rustfmt
+          profile: minimal
+          override: true
+
+      - name: Check style
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Run Clippy
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        id: toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: x86_64-unknown-linux-musl
+          components: clippy
+          profile: minimal
+          override: true
+
+      - name: Setup cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Run Clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --workspace -- -D warnings
+
+  test:
+    name: Run test suite with Rust ${{ matrix.toolchain }}
+    needs: [rustfmt, clippy]
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    strategy:
+      fail-fast: false # Continue other jobs if one fails to help filling the cache
+      matrix:
+        toolchain:
+          - "1.61.0" # MSRV
+          - stable
+          - beta
+          - nightly
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        id: toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: x86_64-unknown-linux-musl
+          components: clippy
+          profile: minimal
+          override: true
+
+      - name: Setup cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Test
+        id: test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --workspace
+
+  coverage:
+    name: Code coverage
+    needs: [rustfmt, clippy]
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        id: toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: x86_64-unknown-linux-musl
+          override: true
+          components: llvm-tools-preview
+
+      - name: Setup cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Download grcov
+        run: |
+          mkdir -p "${HOME}/.local/bin"
+          curl -sL https://github.com/mozilla/grcov/releases/download/v0.8.11/grcov-x86_64-unknown-linux-gnu.tar.bz2 | tar jxf - -C "${HOME}/.local/bin"
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
+
+      - name: Run test suite with profiling enabled
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --no-fail-fast --workspace
+        env:
+          CARGO_INCREMENTAL: '0'
+          RUSTFLAGS: '-Cinstrument-coverage'
+          LLVM_PROFILE_FILE: "cargo-test-%p-%m.profraw"
+
+      - name: Build grcov report
+        run: |
+          mkdir -p target/coverage
+          grcov . --binary-path ./target/debug/deps/ -s . -t lcov --branch --ignore-not-existing --ignore '../*' --ignore "/*" -o target/coverage/tests.lcov
+
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v3
+        with:
+          files: target/coverage/*.lcov
+          flags: unit