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2023年秋、Bun v1を触る

yuusukesanyuusukesan

Bunでモジュールバンドルを制作したい。

公式

https://bun.sh/

Bun環境構築

ProductName:		macOS
ProductVersion:		13.1
BuildVersion:		22C65

homebrewを利用する。
手順は、ドキュメント通りに実施する。

~ % brew -v
Homebrew 3.6.16
~ % brew tap oven-sh/bun
~ % brew install bun
~ % bun -v
1.0.3
yuusukesanyuusukesan
{
  "name": "hoge",
  "module": "index.ts",
  "type": "module",
  "devDependencies": {
    "bun-types": "latest"
  },
  "scripts": {
    "build": "bun"
  },
  "peerDependencies": {
    "typescript": "^5.0.0"
  }
}

Usage: bun build [flags] [...entrypoints]

Common Flags:
  --outfile            Write the output to a specific file (default: stdout)
  --outdir             Write the output to a directory (required for splitting)
  --minify             Enable all minification flags
  --minify-whitespace  Remove unneeded whitespace
  --minify-syntax      Transform code to use less syntax
  --minify-identifiers Shorten variable names
  --sourcemap          Generate sourcemaps
                       ("none", "inline", or "external")
  --target             The intended execution environment for the bundle.
                       ("browser", "bun" or "node")
  --splitting          Enable code splitting (requires --outdir)
  --watch              Run bundler in watch mode

Examples:
  Frontend web apps:
  bun build ./src/index.ts --outfile=bundle.js
  bun build --minify --splitting --outdir=out ./index.jsx ./lib/worker.ts

  Bundle code to be run in Bun (reduces server startup time)
  bun build --target=bun ./server.ts --outfile=server.js

  Creating a standalone executable (see https://bun.sh/docs/bundler/executables)
  bun build --compile ./cli.ts --outfile=my-app

A full list of flags is available at https://bun.sh/docs/bundler