ESBuild Builder

Build GitHub Actions using ESBuild.

Installation

pnpm

pnpm add -D actions-kit @actions-sdk/esbuild-builder

yarn

yarn add -D actions-kit @actions-sdk/esbuild-builder

npm

npm install -D actions-kit @actions-sdk/esbuild-builder

bun

bun install -D actions-kit @actions-sdk/esbuild-builder

Set the builder in your actions-kit.config.ts file:

actions-kit.config.ts

import esbuild from "@actions-sdk/esbuild-builder";
import { defineConfig } from "actions-kit/config";

export default defineConfig({
  builder: esbuild({
    ...esbuildOptions,
  }),
});

Customizing ESBuild

You can customize the ESBuild options by passing the options directly into the esbuild function.

NOTE

Not all of ESBuild's options are supported. For a list of the supported options, see ESBuild Options.

actions-kit.config.ts

import esbuild from "@actions-sdk/esbuild-builder";
import { defineConfig } from "actions-kit/config";

export default defineConfig({
  builder: esbuild({
    target: "esnext",
    format: "esm",
    minify: true,
  }),
});

ESBuild Options

These are the supported ESBuild options:

Option	Type	Documentation
sourcemap	boolean | 'linked' | 'inline' | 'external' | 'both'	Source Map
legalComments	'none' | 'inline' | 'eof' | 'linked' | 'external'	Legal Comments
sourceRoot	string	Source Root
sourcesContent	boolean	Sources Content
format	'iife' | 'cjs' | 'esm'	Format
globalName	string	Global Name
target	string | string[]	Target
supported	Record<string, boolean>	Supported
platform	'browser' | 'node' | 'neutral'	Platform
mangleProps	RegExp	Mangle Props
reserveProps	RegExp	Mangle Props
mangleQuoted	boolean	Mangle Props
mangleCache	Record<string, string | false>	Mangle Props
drop	('console' | 'debugger')[]	Drop
dropLabels	string[]	Drop Labels
minify	boolean	Minify
minifyWhitespace	boolean	Minify
minifyIdentifiers	boolean	Minify
minifySyntax	boolean	Minify
lineLimit	number	Line Limit
charset	'ascii' | 'utf8'	Charset
treeShaking	boolean	Tree Shaking
ignoreAnnotations	boolean	Ignore Annotations
jsx	'transform' | 'preserve' | 'automatic'	JSX
jsxFactory	string	JSX Factory
jsxFragment	string	JSX Fragment
jsxImportSource	string	JSX Import Source
jsxDev	boolean	JSX Development
jsxSideEffects	boolean	JSX Side Effects
define	{ [key: string]: string }	Define
pure	string[]	Pure
keepNames	boolean	Keep Names
color	boolean	Color
logLevel	'verbose' | 'debug' | 'info' | 'warning' | 'error' | 'silent'	Log Level
logLimit	number	Log Limit
logOverride	Record<string, LogLevel>	Log Override
bundle	boolean	Bundle
splitting	boolean	Splitting
preserveSymlinks	boolean	Preserve Symlinks
outfile	string	Outfile
metafile	boolean	Metafile
outdir	string	Outdir
outbase	string	Outbase
external	string[]	External
packages	'bundle' | 'external'	Packages
alias	Record<string, string>	Alias
loader	{ [ext: string]: Loader }	Loader
resolveExtensions	string[]	Resolve Extensions
mainFields	string[]	Main Fields
conditions	string[]	Conditions
write	boolean	Write
allowOverwrite	boolean	Allow Overwrite
tsconfig	string	TSConfig
outExtension	{ [ext: string]: string }	Out Extension
publicPath	string	Public Path
entryNames	string	Entry Names
chunkNames	string	Chunk Names
assetNames	string	Asset Names
inject	string[]	Inject
banner	{ [type: string]: string }	Banner
footer	{ [type: string]: string }	Footer
entryPoints	string[] | Record<string, string> | { in: string, out: string }[]	Entry Points
plugins	Plugin[]	Plugins
absWorkingDir	string	Working Directory
nodePaths	string[]	Node Paths