chore(ci): add continuous integration workflow

.github/workflows/ci.yml

@@ -0,0 +1,108 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+      - name: Checkout the repository
+        uses: actions/checkout@master
+      - name: Check the project files
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --locked --verbose
+
+  test:
+    name: Test suite
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+      - name: Checkout the repository
+        uses: actions/checkout@master
+      - name: Setup cargo-tarpaulin
+        run: |
+          curl -s https://api.github.com/repos/xd009642/tarpaulin/releases/latest | \
+            grep "browser_download_url.*tar.gz" | cut -d : -f 2,3 | tr -d \" | wget -qi -
+          tar -xzf cargo-tarpaulin-*.tar.gz
+          mv cargo-tarpaulin ~/.cargo/bin/
+      - name: Run tests
+        run: cargo tarpaulin --out Xml --verbose
+      - name: Upload reports to codecov
+        uses: codecov/codecov-action@v1
+        with:
+          name: code-coverage-report
+          file: cobertura.xml
+          flags: unit-tests
+          fail_ci_if_error: true
+          verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}
+
+  clippy:
+    name: Lints
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          components: clippy
+          override: true
+      - name: Checkout the repository
+        uses: actions/checkout@master
+      - name: Check the lints
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --verbose -- -D warnings
+
+  rustfmt:
+    name: Formatting
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          components: rustfmt
+          override: true
+      - name: Checkout the repository
+        uses: actions/checkout@master
+      - name: Check the formatting
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: -- --check --verbose
+
+  lychee:
+    name: Links
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@master
+      - name: Check the links
+        uses: lycheeverse/lychee-action@v1
+        with:
+          args: --exclude "example|localhost|awesome.txt" -v *.md
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}