50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
import crypto from 'crypto'
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import fs from 'fs'
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import { promisify } from 'util'
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import path from 'path'
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import { rollup } from 'rollup'
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import { terser } from 'rollup-plugin-terser'
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import replace from '@rollup/plugin-replace'
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import { themes } from '../src/routes/_static/themes.js'
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import terserOptions from './terserOptions.js'
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const __dirname = path.dirname(new URL(import.meta.url).pathname)
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const writeFile = promisify(fs.writeFile)
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const themeColors = Object.fromEntries(themes.map(_ => ([_.name, _.color])))
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export async function buildInlineScript () {
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const inlineScriptPath = path.join(__dirname, '../src/inline-script/inline-script.js')
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const bundle = await rollup({
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input: inlineScriptPath,
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plugins: [
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replace({
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values: {
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'process.browser': true,
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'process.env.THEME_COLORS': JSON.stringify(themeColors)
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},
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preventAssignment: true
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}),
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// TODO: can't disable terser at all, it causes the CSP checksum to stop working
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// because the HTML gets minified as some point so the checksums don't match.
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terser({ ...terserOptions, mangle: !process.env.DEBUG })
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]
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})
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const { output } = await bundle.generate({
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format: 'iife',
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sourcemap: true
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})
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const { code, map } = output[0]
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const fullCode = `${code}//# sourceMappingURL=/inline-script.js.map`
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const checksum = crypto.createHash('sha256').update(fullCode, 'utf8').digest('base64')
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await writeFile(path.resolve(__dirname, '../src/inline-script/checksum.js'),
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`export default ${JSON.stringify(checksum)}`, 'utf8')
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await writeFile(path.resolve(__dirname, '../static/inline-script.js.map'),
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map.toString(), 'utf8')
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return '<script>' + fullCode + '</script>'
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}
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