chore(ci/cd): configure GitHub workflows

.github/workflows/pre-commit.yaml

@@ -0,0 +1,13 @@
+name: pre-commit
+
+on:
+  pull_request:
+  merge_group:
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+      - uses: pre-commit/action@v3.0.0

.github/workflows/tests.yml

@@ -0,0 +1,105 @@
+on:
+  pull_request:
+  merge_group:
+
+name: Continuous integration
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          rustup install --profile minimal stable
+          rustup default stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo check --all-targets
+
+  cargo-deny:
+    name: cargo deny
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: embarkStudios/cargo-deny-action@v1
+
+  test:
+    name: Test suite
+    runs-on: ubuntu-latest
+    needs: check
+    strategy:
+      matrix:
+        toolchain: [stable, beta, nightly, msrv]
+    steps:
+      - uses: actions/checkout@v4
+        name: Checkout
+      - name: Install Rust toolchain
+        run: |
+          if [ ${{ matrix.toolchain }} = msrv ]; then
+            toolchain=$(awk -F '"' '/^rust-version =/ {print $2}' Cargo.toml)
+          else
+            toolchain=${{ matrix.toolchain }}
+          fi
+          rustup install --profile minimal $toolchain
+          rustup default $toolchain
+      - uses: Swatinem/rust-cache@v2
+      - name: Test documentation in debug mode
+        run: cargo test --doc
+      - name: Test in debug mode
+        run: cargo test --tests --benches
+
+  test-release:
+    name: Extra tests in release mode
+    runs-on: ubuntu-latest
+    needs: check
+    steps:
+      - uses: actions/checkout@v4
+        name: Checkout
+      - run: |
+          rustup install --profile minimal nightly
+          rustup default nightly
+        name: Install Rust toolchain
+      - uses: Swatinem/rust-cache@v2
+      - name: Test documentation in release mode
+        run: cargo test --doc --release
+      - name: Test in release mode
+        run: cargo test --release --tests --benches
+
+  test-minimal-versions:
+    name: Test with minimal versions
+    runs-on: ubuntu-latest
+    needs: check
+    steps:
+      - uses: actions/checkout@v4
+        name: Checkout
+      - name: Install nightly (for -Z) and stable Rust toolchains
+        run: |
+          rustup install --profile minimal nightly
+          rustup install --profile minimal stable
+          rustup default stable
+      - name: Set dependencies to the minimal version allowed
+        run: cargo +nightly update -Zminimal-versions
+      - uses: Swatinem/rust-cache@v2
+      - name: Test with minimal version dependencies and stable compiler
+        run: cargo +stable test --tests --benches
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    needs: check
+    steps:
+      - uses: actions/checkout@v4
+      - run: rustup install --profile default stable
+      - run: cargo +stable fmt --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    needs: check
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          rustup install --profile default nightly
+          rustup default nightly
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo clippy --all-targets

.pre-commit-config.yaml

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+default_language_version:
+  python: python3 # Defaults to python2, so override it.
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-byte-order-marker
+      - id: check-case-conflict
+      - id: check-merge-conflict
+      - id: check-symlinks
+      - id: check-toml
+      - id: check-yaml
+      - id: detect-private-key
+      - id: end-of-file-fixer
+      - id: forbid-submodules
+      - id: mixed-line-ending
+        args: ['--fix=lf']
+      - id: trailing-whitespace
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.2.2
+    hooks:
+      - id: codespell
+        args: ['--ignore-words-list', 'crate']