64 lines
1.6 KiB
TypeScript
64 lines
1.6 KiB
TypeScript
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import { existsSync, readFileSync, rmSync } from 'fs'
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import kleur from 'kleur'
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import minimist from 'minimist'
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import { resolve } from 'path'
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import { exec } from './lib/exec'
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const args = minimist(process.argv.slice(2))
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const sizeLimit = Number(args['size-limit-bytes'])
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if (!isFinite(sizeLimit) || sizeLimit < 1) {
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console.error(
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'Invalid usage. Usage: yarn tsx check-worker-bundle.ts --size-limit-bytes <size> --entry <entry>'
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)
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process.exit(1)
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}
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const entry = args['entry']
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if (!existsSync(entry)) {
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console.error('Entry file does not exist:', entry)
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process.exit(1)
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}
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const bundleMetaFileName = '.bundle-meta.json'
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interface Meta {
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outputs: {
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[fileName: string]: {
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bytes: number
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}
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}
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}
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async function checkBundleSize() {
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rmSync(bundleMetaFileName, { force: true })
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await exec('yarn', [
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'esbuild',
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entry,
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'--bundle',
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'--outfile=/dev/null',
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'--minify',
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'--external:cloudflare:workers',
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'--metafile=' + bundleMetaFileName,
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])
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console.log(kleur.cyan().bold('Checking bundle size'), 'of', resolve(entry) + '\n')
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const meta = JSON.parse(readFileSync(bundleMetaFileName).toString()) as Meta
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const totalSize = Object.values(meta.outputs).reduce((acc, output) => acc + output.bytes, 0)
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if (totalSize === 0) {
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throw new Error('Invalid bundle meta in ' + process.cwd() + '/' + bundleMetaFileName)
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}
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if (totalSize > sizeLimit) {
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console.error(
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`${kleur.red().bold('ERROR')} Bundle size exceeds limit: ${totalSize} > ${sizeLimit}`
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)
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process.exit(1)
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}
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console.log(`Bundle size is within limit: ${totalSize} < ${sizeLimit}`)
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}
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checkBundleSize()
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