build.mjs

import * as esbuild from "esbuild"
import { execSync } from "node:child_process"
import { renameSync, rmSync } from "node:fs"

// Clean
rmSync("dist", { recursive: true, force: true })

// 1. Generate declarations with tsc
console.log("Generating type declarations...")
execSync("npx tsc -p src/tsconfig.json", { stdio: "inherit" })
// tsc outputs main.d.ts; rename to index.d.ts to match package.json exports
renameSync("dist/main.d.ts", "dist/index.d.ts")

// 2. Bundle ESM (single file, all impl/ inlined)
console.log("Bundling ESM...")
await esbuild.build({
	entryPoints: ["src/main.ts"],
	bundle: true,
	format: "esm",
	platform: "neutral",
	target: "es2020",
	outfile: "dist/index.js",
	minifySyntax: true,
	treeShaking: true,
})

// 3. Bundle CJS (for backwards compat with require())
console.log("Bundling CJS...")
await esbuild.build({
	entryPoints: ["src/main.ts"],
	bundle: true,
	format: "cjs",
	platform: "neutral",
	target: "es2020",
	outfile: "dist/index.cjs",
	minifySyntax: true,
	treeShaking: true,
})

// 4. Bundle tests (esbuild handles TS interface imports correctly)
console.log("Bundling tests...")
await esbuild.build({
	entryPoints: [
		"src/test/json.test.ts",
		"src/test/edit.test.ts",
		"src/test/format.test.ts",
		"src/test/string-intern.test.ts",
	],
	bundle: true,
	format: "esm",
	platform: "node",
	target: "es2020",
	outdir: "dist/test",
	external: ["mocha", "assert"],
})

console.log("✓ Build complete")