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import fetch from 'node-fetch'
async function main() {
const releasesArray = await fetch(
'https://api.github.com/repos/vercel/next.js/releases?per_page=100'
).then((r) => r.json())
const allReleases = releasesArray
.map(({ id, tag_name, created_at, body }) => ({
id,
tag_name,
created_at,
body: body
.replace(/\r\n/g, '\n')
.split('\n')
.map((e) => e.trim()),
}))
.sort((a, b) => a.created_at.localeCompare(b.created_at))
// targetVersion format is `13.4.15-`, generating changes for all 13.4.15-* canary releases
const targetVersion = /v(.*?-)/
.exec(allReleases.filter((e) => /v.*?-/.exec(e.tag_name)).pop().tag_name)
.pop()
const releases = allReleases.filter((v) => v.tag_name.includes(targetVersion))
const lineItems = {
'### Core Changes': [],
'### Minor Changes': [],
'### Documentation Changes': [],
'### Example Changes': [],
'### Misc Changes': [],
'### Patches': [],
'### Credits': [],
}
Object.keys(lineItems).forEach((header) => {
releases.forEach((release) => {
const headerIndex = release.body.indexOf(header)
if (!~headerIndex) return
let headerLastIndex = release.body
.slice(headerIndex + 1)
.findIndex((v) => v.startsWith('###'))
if (~headerLastIndex) {
headerLastIndex = headerLastIndex + headerIndex
} else {
headerLastIndex = release.body.length - 1
}
if (header === '### Credits') {
release.body.slice(headerIndex, headerLastIndex + 1).forEach((e) => {
const re = /@[a-z\d](?:[a-z\d]|-(?=[a-z\d])){0,38}/gi
let m
do {
m = re.exec(e)
if (m) {
lineItems[header].push(m.pop())
}
} while (m)
})
} else {
release.body.slice(headerIndex, headerLastIndex + 1).forEach((e) => {
if (!e.startsWith('-')) {
return
}
lineItems[header].push(e)
})
}
})
})
let finalMessage = []
Object.keys(lineItems).forEach((header) => {
let items = lineItems[header]
if (!items.length) {
return
}
finalMessage.push(header)
finalMessage.push('')
if (header === '### Credits') {
items = [...new Set(items)]
let creditsMessage = `Huge thanks to `
if (items.length > 1) {
creditsMessage += items.slice(0, items.length - 1).join(`, `)
creditsMessage += `, and `
}
creditsMessage += items[items.length - 1]
creditsMessage += ` for helping!`
finalMessage.push(creditsMessage)
} else {
items.forEach((e) => finalMessage.push(e))
}
finalMessage.push('')
})
return {
version: targetVersion.slice(0, -1),
firstVersion: releases[0].tag_name,
lastVersion: releases[releases.length - 1].tag_name,
content: finalMessage.join('\n'),
}
}
main().then((result) => {
console.log(result.content)
})
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