Waterlogged

This is a super simple "library"(a whole single function) for running multiple formats for esbuild in parallel with some pretty logging inspired by Remix' compiler

Install

npm i -D @kruining/waterlogged

Note Make sure you have esbuild installed. It is a peer dependency of this lib, this is so that you are free to choose the version of esbuild you want to run.

Usage

esbuild.mjs

import { compile } from './dist/index.mjs';

await compile([ 'esm', 'cjs' ], {
    entryPoints: [ './src/index.ts' ],
    outbase: 'src',
    outfile: 'lib/index.$formatExtension',
    bundle: false,
    sourcemap: true,
    minify: true,
    platform: 'node',
    target: [ 'esnext' ],
    watch: process.argv[2] === 'watch',
});

package.json

{
    ...,
    "scripts": {
        "build:typed": "node ./esbuild.mjs && tsc",
        "build": "node ./esbuild.mjs",
        "dev": "node ./esbuild.mjs watch",
        ...,
    },
    ...
}

Note: How you define and set up your watch mode is completely up to you, I simply added it to the docs as an example. This library just parallelizes your esbuilds based on the formats given and logs in a fancy format.

Arguments

param	type	description
formats	Format[]	an array of formats for esbuild's format option, with the same type
options	Omit<BuildOptions, 'format'>	just esbuild's options object, minus the format option

"Variables"

I have added simple string replacement logic for the outfile and outdir options. $format is replaced with the current format. And $formatExtionsion is replaced as per this table:

format	extension
esm	mjs
cjs	cjs
iife	js