ci: create GitHub Actions workflow for testing and multi-arch Docker publishing

.github/workflows/ci.yml

@@ -0,0 +1,87 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*.*.*'
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  test:
+    name: Test & Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 1.3.14
+
+      - name: Install dependencies
+        run: bun install --frozen-lockfile
+
+      - name: Type check
+        run: bun run typecheck
+
+      - name: Run test suite
+        run: bun test
+
+  docker:
+    name: Build & Publish Docker Image
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+          flavor: |
+            latest=auto
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=sha,prefix=sha-
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+
+      - name: Log in to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

tests/ci-workflow.test.ts

@@ -0,0 +1,55 @@
+import { describe, test, expect } from "bun:test";
+import { existsSync, readFileSync } from "node:fs";
+import { resolve } from "node:path";
+
+const ROOT_DIR = resolve(import.meta.dir, "..");
+const WORKFLOW_PATH = resolve(ROOT_DIR, ".github/workflows/ci.yml");
+
+describe("GitHub Actions CI Workflow", () => {
+  test("ci.yml exists and has proper triggers and permissions", () => {
+    expect(existsSync(WORKFLOW_PATH)).toBe(true);
+
+    const content = readFileSync(WORKFLOW_PATH, "utf-8");
+
+    // Triggers
+    expect(content).toContain("pull_request:");
+    expect(content).toContain("push:");
+    expect(content).toContain("workflow_dispatch:");
+    expect(content).toContain("- main");
+    expect(content).toContain("- 'v*.*.*'");
+
+    // Permissions
+    expect(content).toContain("permissions:");
+    expect(content).toContain("contents: read");
+    expect(content).toContain("packages: write");
+  });
+
+  test("ci.yml defines test job with Bun 1.3.14 and strict checks", () => {
+    const content = readFileSync(WORKFLOW_PATH, "utf-8");
+
+    expect(content).toContain("test:");
+    expect(content).toContain("runs-on: ubuntu-latest");
+    expect(content).toContain("oven-sh/setup-bun@v2");
+    expect(content).toContain("bun-version: 1.3.14");
+    expect(content).toContain("bun install --frozen-lockfile");
+    expect(content).toContain("bun run typecheck");
+    expect(content).toContain("bun test");
+  });
+
+  test("ci.yml defines docker job with multi-arch buildx and ghcr publishing", () => {
+    const content = readFileSync(WORKFLOW_PATH, "utf-8");
+
+    expect(content).toContain("docker:");
+    expect(content).toContain("needs: test");
+    expect(content).toContain("docker/setup-qemu-action@v3");
+    expect(content).toContain("docker/setup-buildx-action@v3");
+    expect(content).toContain("docker/metadata-action@v5");
+    expect(content).toContain("ghcr.io/${{ github.repository }}");
+    expect(content).toContain("docker/login-action@v3");
+    expect(content).toContain("registry: ghcr.io");
+    expect(content).toContain("docker/build-push-action@v6");
+    expect(content).toContain("platforms: linux/amd64,linux/arm64");
+    expect(content).toContain("push: ${{ github.event_name != 'pull_request' }}");
+    expect(content).toContain("type=gha");
+  });
+});