bun issue reproduction for cloudflare pages

Issue

Cloudflare pages auto detects bun as runtime and package manager (which is amazing!)

Sadly detected version is old (1.0.1) and packageManager field in package.json (with bun@1.0.25) is not respected to use 1.0.25.

1.0.25 has a fix for rollup v4 (https://github.com/oven-sh/bun/pull/7171) to be working and it breaks Nuxt, or any other project that uses rollup v4.

Deploy

• Create new pages project
• Framework: empty
• Build: bun run build
• Deploy dir: dist

Current Workarounds

Use bun upgrade && bun run build as build command

Some more context

when using bun <command> CLI, bun by default it uses Node.js when there is #/bin/env node shebang which is case for 99% of npm pacakge binaries. Essentially in most of cases bun is used only as package manager and Node.js as real runtime. bun --bun or bun <script> or #/bin/env bun are the ways to use actually use bun.

Possible Fixes

Cloudflare pages builder could:

• Respect Bun version in packageManager field
• Install latest 1.x version of Bun
• At least upgrade to current 1.0.25 to resolve major issues with rollup v4 support

Logs

Issue:

Detected the following tools from environment: bun@1.0.1, nodejs@18.17.1

Full:

2024-02-01T17:43:34.572503836Z	Cloning repository...
2024-02-01T17:43:35.334332451Z	From https://github.com/pi0/bun-on-pages
2024-02-01T17:43:35.334640246Z	 * branch            b347242113dd61e7ba219ca6754f9cbf93786302 -> FETCH_HEAD
2024-02-01T17:43:35.334845114Z
2024-02-01T17:43:35.367270886Z	HEAD is now at b347242 update lock
2024-02-01T17:43:35.367525983Z
2024-02-01T17:43:35.466038643Z
2024-02-01T17:43:35.46641083Z	Using v2 root directory strategy
2024-02-01T17:43:35.497197771Z	Success: Finished cloning repository files
2024-02-01T17:43:36.259661418Z	Detected the following tools from environment: bun@1.0.1, nodejs@18.17.1
2024-02-01T17:43:36.260417069Z	Installing project dependencies: bun install --frozen-lockfile
2024-02-01T17:43:36.535165538Z	bun install v1.0.1 (31aec4eb)
2024-02-01T17:43:36.708061354Z	 + rollup@4.9.6
2024-02-01T17:43:36.708268599Z
2024-02-01T17:43:36.708474308Z	 4 packages installed [179.00ms]
2024-02-01T17:43:36.712486667Z	Executing user command: bun run build
2024-02-01T17:43:37.01420895Z	$ bun ./build.mjs
2024-02-01T17:43:37.085411895Z	Bun version 1.0.1
2024-02-01T17:43:37.085450547Z	Importing rollup
2024-02-01T17:43:37.112536307Z	1 | const { existsSync } = require('node:fs');
2024-02-01T17:43:37.113607573Z	2 | const { join } = require('node:path');
2024-02-01T17:43:37.113636155Z	3 | const { platform, arch, report } = require('node:process');
2024-02-01T17:43:37.113641816Z	4 |
2024-02-01T17:43:37.113646072Z	5 | const isMusl = () => !report.getReport().header.glibcVersionRuntime;
2024-02-01T17:43:37.113657567Z	                                          ^
2024-02-01T17:43:37.113661515Z	TypeError: undefined is not an object (evaluating 'report.getReport')
2024-02-01T17:43:37.11366506Z	      at isMusl (/opt/buildhome/repo/node_modules/rollup/dist/native.js:5:39)
2024-02-01T17:43:37.114786515Z	      at getPackageBase (/opt/buildhome/repo/node_modules/rollup/dist/native.js:60:27)
2024-02-01T17:43:37.114808067Z	      at /opt/buildhome/repo/node_modules/rollup/dist/native.js:35:20
2024-02-01T17:43:37.114813715Z	      at globalThis (/opt/buildhome/repo/node_modules/rollup/dist/native.js:102:33)
2024-02-01T17:43:37.114817943Z	      at processTicksAndRejections (:1:2602)
2024-02-01T17:43:37.118430633Z	error: script "build" exited with code 1 (SIGHUP)
2024-02-01T17:43:37.118576697Z	Failed: Error while executing user command. Exited with error code: 1
2024-02-01T17:43:37.125288087Z	Failed: build command exited with code: 1