Add CI (#1)

Reviewed-on: #1
Co-authored-by: Val Lorentz <progval+git+ratatrix@progval.net>
Co-committed-by: Val Lorentz <progval+git+ratatrix@progval.net>

.gitea/workflows/ci.yml

@@ -0,0 +1,106 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Cache Rust
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.rustup/
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-1.73.0
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: '1.73.0'
+          components: rustfmt
+          override: true
+
+      - name: rustfmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - name: clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: ${{ matrix.default }} -- -Dwarnings
+
+  test:
+    name: Build and test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        rust:
+        - nightly
+        - beta
+        - '1.73.0'
+
+        features:
+        - ''
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install system dependencies
+        run: |
+          apt-get -y update
+          apt-get -y install lld
+
+      - name: Cache Rust
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.rustup/
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ matrix.rust }}
+
+      - name: Install rust (${{ matrix.rust }})
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          profile: minimal
+          override: true
+
+      - name: Configure Cargo to use lld
+        run: |
+          echo '[build]' >> ~/.cargo/config
+          echo 'rustflags = ["-Clink-args=-fuse-ld=lld"]' >> ~/.cargo/config
+
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: ${{ matrix.features }}
+
+      - name: Test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: ${{ matrix.features }}
+
+      - name: Doc
+        uses: actions-rs/cargo@v1
+        with:
+          command: doc
+          args: ${{ matrix.features }} --no-deps