Add GitHub workflows and VSCode test debug config

Author: hippotastic

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  ci:
+    name: Build, test & lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+      
+      - name: Setup PNPM
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: 'pnpm'
+      
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      
+      - name: Build packages
+        run: pnpm build
+      
+      - name: Run tests with coverage
+        run: pnpm coverage
+
+      - name: Lint source code
+        run: pnpm lint

.github/workflows/release.yml

@@ -0,0 +1,60 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  release:
+    name: Release
+    if: github.repository_owner == 'expressive-code'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+      
+      - name: Setup PNPM
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: 'pnpm'
+      
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      
+      - name: Check for unreleased changesets
+        id: has-changesets
+        uses: andstor/file-existence-action@v2
+        with:
+          files: ".changeset/!(README).md"
+      
+      # If there are unreleased changesets, validate the project before creating the changesets PR
+      - name: Require build, test and lint to pass
+        if: steps.has-changesets.outputs.files_exists == 'true'
+        run: |
+          pnpm build
+          pnpm test
+          pnpm lint
+      
+      # Run changesets action either if there are unreleased changesets (= a PR must be created)
+      # or if the commit message matches the release PR (= new versions must be published to NPM)
+      - name: Create changesets PR or publish to NPM
+        id: changesets
+        if: steps.has-changesets.outputs.files_exists == 'true' || startsWith(github.event.head_commit.message, '[CI] Release')
+        uses: changesets/action@v1
+        with:
+          title: '[CI] Release'
+          commit: '[CI] Release'
+          version: 'pnpm ci-version'
+          publish: 'pnpm ci-publish'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.vscode/launch.json

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+{
+	// Use IntelliSense to learn about possible attributes.
+	// Hover to view descriptions of existing attributes.
+	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"type": "node",
+			"request": "launch",
+			"name": "Debug Current Test File",
+			"autoAttachChildProcesses": true,
+			"skipFiles": ["<node_internals>/**", "**/node_modules/**"],
+			"program": "${workspaceRoot}/node_modules/vitest/vitest.mjs",
+			"args": ["run", "${relativeFile}"],
+			"smartStep": true,
+			"console": "integratedTerminal"
+		}
+	]
+}