build: Add Github actions

This includes checks for DCO, cargo fmt/clippy, cargo.toml format, and
unit tests.

Signed-off-by: Bo Chen <bchen@crusoe.ai>
Suggested-by: Rob Bradford <rbradford@rivosinc.com>

Author: likebreath

.github/workflows/dco.yaml

@@ -0,0 +1,19 @@
+name: DCO
+on: [pull_request]
+
+jobs:
+  check:
+    name: DCO Check ("Signed-Off-By")
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v5
+    - name: Set up Python 3.x
+      uses: actions/setup-python@v6
+      with:
+        python-version: '3.x'
+    - name: Check DCO
+      if: ${{ github.event_name == 'pull_request' }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        pip3 install -U dco-check

.github/workflows/quality.yaml

@@ -0,0 +1,39 @@
+name: Quality Checks
+on: [pull_request, create]
+
+jobs:
+  build:
+    name: Quality (clippy, rustfmt)
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.rust == 'beta' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        rust: [stable, beta]
+        target:
+          - aarch64-unknown-linux-gnu
+          - aarch64-unknown-linux-musl
+          - x86_64-unknown-linux-gnu
+          - x86_64-unknown-linux-musl
+
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain (${{ matrix.rust }})
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+          components: rustfmt, clippy
+
+      - name: Formatting (rustfmt)
+        run: cargo fmt -- --check
+
+      - name: Clippy
+        uses: actions-rs/cargo@v1
+        with:
+          use-cross: ${{ matrix.target != 'x86_64-unknown-linux-gnu' }}
+          command: clippy
+          args: --target=${{ matrix.target }} --workspace --all-targets --tests --all-features -- -D warnings -D clippy::undocumented_unsafe_blocks

.github/workflows/taplo.yaml

@@ -0,0 +1,19 @@
+name: Cargo.toml format check (taplo)
+on:
+  pull_request:
+    paths:
+      - '**/Cargo.toml'
+
+jobs:
+  cargo_toml_format:
+    name: Cargo.toml format check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Taplo
+        uses: uncenter/setup-taplo@v1.0.8
+
+      - name: Taplo format check
+        run: taplo fmt --check

.github/workflows/unit_tests.yaml

@@ -0,0 +1,35 @@
+name: Unit tests
+on: [pull_request, create]
+
+jobs:
+  build:
+    name: Unit tests
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.rust == 'beta' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        rust: [stable, beta]
+        target:
+          - aarch64-unknown-linux-gnu
+          - aarch64-unknown-linux-musl
+          - x86_64-unknown-linux-gnu
+          - x86_64-unknown-linux-musl
+
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain (${{ matrix.rust }})
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+
+      - name: Unit tests
+        uses: actions-rs/cargo@v1
+        with:
+          use-cross: ${{ matrix.target != 'x86_64-unknown-linux-gnu' }}
+          command: test
+          args: --target=${{ matrix.target }} --workspace --all-targets --tests --all-features