| 6dd74de | | | 1 | /* eslint-disable no-console */ |
| 6dd74de | | | 2 | import type { Metafile } from 'esbuild'; |
| 6dd74de | | | 3 | import { readFile } from 'fs/promises'; |
| 6dd74de | | | 4 | import { globby } from 'globby'; |
| 6dd74de | | | 5 | import { markdownTable } from 'markdown-table'; |
| 6dd74de | | | 6 | export const getSizes = (metafile: Metafile) => { |
| 6dd74de | | | 7 | const { outputs } = metafile; |
| 6dd74de | | | 8 | const sizes = Object.keys(outputs) |
| 6dd74de | | | 9 | .filter((key) => key.endsWith('js') && !key.includes('chunk')) |
| 6dd74de | | | 10 | .map((key) => { |
| 6dd74de | | | 11 | const { bytes } = outputs[key]; |
| 6dd74de | | | 12 | return [key.replace('dist/', ''), bytes]; |
| 6dd74de | | | 13 | }); |
| 6dd74de | | | 14 | return sizes; |
| 6dd74de | | | 15 | }; |
| 6dd74de | | | 16 | |
| 6dd74de | | | 17 | const readStats = async (path: string): Promise<Record<string, number>> => { |
| 6dd74de | | | 18 | const files = await globby(path); |
| 6dd74de | | | 19 | const contents = await Promise.all(files.map((file) => readFile(file, 'utf-8'))); |
| 6dd74de | | | 20 | const sizes = contents.flatMap((content) => getSizes(JSON.parse(content))); |
| 6dd74de | | | 21 | return Object.fromEntries(sizes); |
| 6dd74de | | | 22 | }; |
| 6dd74de | | | 23 | |
| 6dd74de | | | 24 | const formatBytes = (bytes: number): string => { |
| 6dd74de | | | 25 | if (bytes == 0) { |
| 6dd74de | | | 26 | return '0 Bytes'; |
| 6dd74de | | | 27 | } |
| 6dd74de | | | 28 | bytes = Math.abs(bytes); |
| 6dd74de | | | 29 | const base = 1024; |
| 6dd74de | | | 30 | const decimals = 2; |
| 6dd74de | | | 31 | const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']; |
| 6dd74de | | | 32 | const i = Math.floor(Math.log(bytes) / Math.log(base)); |
| 6dd74de | | | 33 | return parseFloat((bytes / Math.pow(base, i)).toFixed(decimals)) + ' ' + sizes[i]; |
| 6dd74de | | | 34 | }; |
| 6dd74de | | | 35 | |
| 6dd74de | | | 36 | const formatSize = (bytes: number): string => { |
| 6dd74de | | | 37 | const formatted = formatBytes(bytes); |
| 6dd74de | | | 38 | if (formatted.includes('Bytes')) { |
| 6dd74de | | | 39 | return formatted; |
| 6dd74de | | | 40 | } |
| 6dd74de | | | 41 | return `${formatBytes(bytes)} (${bytes} Bytes)`; |
| 6dd74de | | | 42 | }; |
| 6dd74de | | | 43 | |
| 6dd74de | | | 44 | const percentageDifference = (oldValue: number, newValue: number): string => { |
| 6dd74de | | | 45 | const difference = Math.abs(newValue - oldValue); |
| 6dd74de | | | 46 | const avg = (newValue + oldValue) / 2; |
| 6dd74de | | | 47 | const percentage = (difference / avg) * 100; |
| 6dd74de | | | 48 | const roundedPercentage = percentage.toFixed(2); // Round to two decimal places |
| 6dd74de | | | 49 | if (roundedPercentage === '0.00') { |
| 6dd74de | | | 50 | return '0.00%'; |
| 6dd74de | | | 51 | } |
| 6dd74de | | | 52 | const sign = newValue > oldValue ? '+' : '-'; |
| 6dd74de | | | 53 | return `${sign}${roundedPercentage}%`; |
| 6dd74de | | | 54 | }; |
| 6dd74de | | | 55 | |
| 6dd74de | | | 56 | const main = async () => { |
| 6dd74de | | | 57 | const oldStats = await readStats('./cypress/snapshots/stats/base/**/*.json'); |
| 6dd74de | | | 58 | const newStats = await readStats('./cypress/snapshots/stats/head/**/*.json'); |
| 6dd74de | | | 59 | const diff = Object.entries(newStats) |
| 6dd74de | | | 60 | .filter(([, value]) => value > 2048) |
| 6dd74de | | | 61 | .map(([key, value]) => { |
| 6dd74de | | | 62 | const oldValue = oldStats[key]; |
| 6dd74de | | | 63 | const delta = value - oldValue; |
| 6dd74de | | | 64 | const output = [ |
| 6dd74de | | | 65 | key, |
| 6dd74de | | | 66 | formatSize(oldValue), |
| 6dd74de | | | 67 | formatSize(value), |
| 6dd74de | | | 68 | formatSize(delta), |
| 6dd74de | | | 69 | percentageDifference(oldValue, value), |
| 6dd74de | | | 70 | ]; |
| 6dd74de | | | 71 | return output; |
| 6dd74de | | | 72 | }) |
| 6dd74de | | | 73 | .filter(([, , , delta]) => delta !== '0 Bytes'); |
| 6dd74de | | | 74 | if (diff.length === 0) { |
| 6dd74de | | | 75 | console.log('No changes in bundle sizes'); |
| 6dd74de | | | 76 | return; |
| 6dd74de | | | 77 | } |
| 6dd74de | | | 78 | console.log( |
| 6dd74de | | | 79 | markdownTable([['File', 'Previous Size', 'New Size', 'Difference', '% Change'], ...diff]) |
| 6dd74de | | | 80 | ); |
| 6dd74de | | | 81 | }; |
| 6dd74de | | | 82 | |
| 6dd74de | | | 83 | void main().catch((e) => console.error(e)); |