vite.config.ts

import { resolve } from 'path'
import { defineConfig } from 'vite'
import dts from 'vite-plugin-dts'

import packageJson from './package.json'

// -----------------------------------------------------------------------------
// Const
// -----------------------------------------------------------------------------

enum FileExtension {
  ES = `es`,
  CJS = `cjs`,
}

const entry = resolve(__dirname, `src/index.ts`)

if (!entry) {
  throw new Error(`Entry file not found`)
}

// Pull a list of externals from package.json's dependencies
const external = Object.keys(packageJson.dependencies)

// -----------------------------------------------------------------------------
// Exports
// -----------------------------------------------------------------------------

export default defineConfig(() => ({
  logLevel: `info`,
  build: {
    minify: false,
    sourcemap: true,
    lib: {
      entry,
      name: `Warp Grid`,
      formats: [FileExtension.ES, FileExtension.CJS],
      // Choose names for build artifacts
      fileName: (format) => {
        if (format === FileExtension.ES) {
          return `index.js`
        }
        if (format === FileExtension.CJS) {
          return `index.cjs`
        }
        throw new Error(`Unknown format: '${format}'`)
      },
    },
    rollupOptions: {
      external,
    },
  },
  plugins: [
    // Generate a single types file for all our types
    dts({
      rollupTypes: true,
    }),
  ],
}))