feat: Adds ci

.dockerignore

@@ -0,0 +1 @@
+.build/*

.gitea/workflows/ci.yml

@@ -0,0 +1,21 @@
+---
+name: CI
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+
+jobs:
+  test:
+    name: Run tests.
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup just.
+        uses: extractions/setup-just@v2
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Run tests.
+        run: just test-docker

docker/Dockerfile.test

@@ -0,0 +1,8 @@
+ARG SWIFT_IMAGE_VERSION="6.0"
+FROM swift:${SWIFT_IMAGE_VERSION}
+WORKDIR /app
+COPY ./Package.* ./
+RUN swift package resolve
+COPY . .
+RUN swift build
+CMD ["/bin/bash", "-xc", "swift", "test"]

justfile

@@ -1,3 +1,4 @@
+docker_image_name := "clidoc"
 
 [private]
 default:
@@ -6,6 +7,15 @@ default:
 clean:
   @rm -rf .build
 
+test-docker: build-docker
+  @docker run -t --rm {{docker_image_name}}:test swift test
+
+build-docker:
+  @docker build \
+    --file docker/Dockerfile.test \
+    --tag {{docker_image_name}}:test \
+    .
+
 preview-documentation target="CliDoc":
   # using the --enable-experimental-combined-documentation doesn't work in previews currently.
   @swift package \