ci: setup CI

.github/actions/setup/action.yml

@@ -0,0 +1,18 @@
+name: 'Setup'
+description: 'Prepares a local copy of the repository for CI actions'
+runs:
+  using: composite
+  steps:
+    - name: Enable corepack
+      shell: bash
+      run: corepack enable pnpm
+
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 20
+        registry-url: https://registry.npmjs.org/
+        cache: 'pnpm'
+
+    - name: Install dependencies
+      shell: bash
+      run: pnpm install

.github/workflows/main.yml

@@ -0,0 +1,48 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    environment: ci
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - run: pnpm test:coverage
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@v2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ./coverage/lcov.info
+
+  check:
+    runs-on: ubuntu-latest
+    environment: ci
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - run: pnpm check
+      - run: pnpm type-check
+
+  build:
+    runs-on: ubuntu-latest
+    environment: ci
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - run: pnpm build

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+name: Publish
+
+on:
+  release:
+    types: [prereleased, released]
+
+jobs:
+  publish:
+    name: Publish to NPM
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          filter: tree:0
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - run: git config --global user.name "${{ github.actor }}"
+      - run: git config --global user.email "github-action-${{ github.actor }}@users.noreply.github.com"
+      - run: npm version from-git --no-git-tag-version
+      - run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}