vite.config.ts

/**
 * BSD 3-Clause License
 *
 * Copyright © 2023, Daniel Jonathan <daniel at cosmicmind dot com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import {
	URL,
	fileURLToPath,
} from 'node:url'

import {
	PluginOption,
	LibraryFormats,
	ConfigEnv,
	defineConfig,
	UserConfigExport,
} from 'vite'

import { viteStaticCopy } from 'vite-plugin-static-copy'

export default ({ mode }: ConfigEnv): UserConfigExport => {
	const name = process.env.npm_package_name
	const srcDir = 'src'
	const entry = `${srcDir}/index.ts`
	const fileName = 'lib-[format]'
	const formats: LibraryFormats[] = [ 'es', 'cjs' ]
	const emptyOutDir = true
	const minify = 'development' !== mode

	const alias = {
		'@': fileURLToPath(new URL(srcDir, import.meta.url)),
	}

	const staticTargets = [
		{
			src: `${srcDir}/lib/*`,
			dest: './sass/lib',
		},
		{
			src: `${srcDir}/themes/*`,
			dest: './sass/themes',
		},
		{
			src: `${srcDir}/_core.sass`,
			dest: './sass',
		}
	]

	const plugins = [
		viteStaticCopy({
			targets: staticTargets,
		})
	] as PluginOption[]

	return defineConfig({
		resolve: {
			alias,
		},
		plugins,
		build: {
			minify,
			emptyOutDir,
			lib: {
				name,
				entry,
				formats,
				fileName,
			},
			rollupOptions: {
				output: {
					assetFileNames: (info): string => {
						if ('style.css' === info.name) {
							return minify ? 'material.min.css' : 'material.css'
						}
						return info.name || 'build-filename-undefined'
					},
				},
			},
		},
	})
}