build.mjs

import fs from 'node:fs'
import process from 'node:process'
import * as esbuild from 'esbuild'

import { getBuildOptions } from '../common.mjs'

const target = 'userscript'
const tag = process.argv.includes('--staging') ? 'staging' : 'prod'
const packageName = process.argv.filter((v) => v !== '--staging')[2]
if (!packageName) {
  console.error('Please specify a package name')
  process.exit(1)
}

const config = JSON.parse(fs.readFileSync('package.json', 'utf8'))

let banner = fs.readFileSync(`src/packages/${packageName}/banner.txt`, 'utf8')

if (tag !== 'prod') {
  banner = banner.replaceAll(/(@name(:[\w-]+)?\s.+)/gm, `$1 - ${tag}`)
}

const buildOptions = {
  ...getBuildOptions(target, tag, `packages/${packageName}/index`),
  banner: {
    js: banner,
  },
  legalComments: 'none',
  outfile:
    tag === 'prod'
      ? `${packageName}/${packageName}.user.js`
      : `${packageName}/${packageName}-${tag}.user.js`,
}
buildOptions.alias = {
  ...buildOptions.alias,
  'browser-extension-storage': 'browser-extension-storage/userscript',
  'browser-extension-utils': 'browser-extension-utils/userscript',
}

await esbuild.build(buildOptions)

let text = fs.readFileSync(buildOptions.outfile, 'utf8')

if (config.bugs && config.bugs.url) {
  text = text.replace('{bugs.url}', config.bugs.url)
}

const keys = banner
  .split('\n')
  .map((v) => /{([\w\-.:]+)}/.exec(v))
  .filter(Boolean)
  .map((v) => v[1])

for (const key of keys) {
  text = text.replace('{' + key + '}', config[key])
}

// Get all userscript GM_* and GM.* functions
const matched = new Set()
text.replaceAll(/(GM[_.]\w+)/gm, (match) => {
  matched.add(match)
})
const grants = [...matched]
  .map((v) => `// @grant${' '.repeat(16)}${v}`)
  .join('\n')
text = text.replace('// ==/UserScript==', `${grants}\n// ==/UserScript==`)

// Replace first one to 'use strict'
text = text.replace('{', '{\n  "use strict";')
// Remove all commenets start with '// '
text = text.replaceAll(/^\s*\/\/ [^=@].*$/gm, '')
text = text.replaceAll(/\n+/gm, '\n')

fs.writeFileSync(buildOptions.outfile, text)