Bootstrap ES module

bootstrap.sh

#!/usr/bin/env bash
set -euo pipefail

PROJECT_NAME=${1:-}

if [ -z "$PROJECT_NAME" ]; then
  echo "Usage: ./bootstrap.sh <project-name>"
  exit 1
fi

mkdir "$PROJECT_NAME"
cd "$PROJECT_NAME"

echo "📦 Initializing project: $PROJECT_NAME"

# 1) Init package.json
pnpm init

# 2) Dev deps
pnpm add -D typescript vitest tsx @types/node

# 3) Scripts + ESM
npm pkg set \
  type=module \
  scripts.dev="tsx src/index.ts" \
  scripts.build="tsc -p tsconfig.json" \
  scripts.test="vitest run" \
  scripts.test:watch="vitest"

# 4) tsconfig — exact config we want
cat > tsconfig.json <<'EOF'
{
  "compilerOptions": {
    "rootDir": "src",
    "outDir": "dist",

    "target": "ES2022",
    "module": "NodeNext",
    "moduleResolution": "NodeNext",
    "lib": ["ES2022"],
    "types": ["node", "vitest"],

    "resolveJsonModule": true,
    "esModuleInterop": true,

    "strict": true,
    "noUncheckedIndexedAccess": true,
    "exactOptionalPropertyTypes": true,

    "isolatedModules": true,
    "verbatimModuleSyntax": true,
    "moduleDetection": "force",

    "sourceMap": true
  },
  "include": ["src"],
  "exclude": ["tests", "dist", "node_modules"]
}
EOF

# 5) Folders + starter files
mkdir -p src tests

cat > src/index.ts <<'EOF'
console.log("hello from TypeScript 🚀");
EOF

cat > tests/sanity.test.ts <<'EOF'
import { expect, it } from "vitest";
it("works", () => {
  expect(2 + 2).toBe(4);
});
EOF

# 6) .gitignore
cat > .gitignore <<'EOF'
node_modules/
.pnpm-store/
.pnp.*
pnpm-debug.log*
npm-debug.log*
yarn-debug.log*
yarn-error.log*

dist/
build/
out/
tsconfig.tsbuildinfo

coverage/
.vitest/

.env
.env.*
!.env.example

logs/
*.log

.DS_Store
Thumbs.db
.idea/
.vscode/
EOF

# 7) Git init + first commit
git init -q
git branch -M main || true
git add -A
git commit -m "chore: bootstrap TypeScript + Vitest project" -q

echo ""
echo "✅ Project $PROJECT_NAME created and committed."
echo "Next:"
echo "  cd $PROJECT_NAME"
echo "  pnpm build        # build the app"
echo "  pnpm dev          # run the app"
echo "  pnpm test         # run tests once"
echo "  pnpm run test:watch # watch mode"