Nuxt/scripts/changelog.js

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import consola from 'consola'
import execa from 'execa'
import { uniq, sortBy, groupBy } from 'lodash'
import { writeFile } from 'fs-extra'
const types = {
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fix: { title: '🐛 Bug Fixes' },
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feat: { title: '🚀 Features' },
refactor: { title: '💅 Refactors' },
perf: { title: '🔥 Performance' },
examples: { title: '📝 Examples' },
chore: { title: '🏡 Chore' },
test: { title: '👓 Tests' },
types: { title: '🇹 Types' }
}
const knownAuthors = [
'chopin',
'parsa',
'clark',
'galvez',
'lichter',
'molotkov',
'marrec',
'pim'
]
const isKnownAuthor = name => Boolean(knownAuthors.find(n => name.toLowerCase().includes(n)))
const allowedTypes = Object.keys(types)
async function main () {
// Get last git tag
const lastGitTag = await getLastGitTag()
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// Get current branch
const currentGitBranch = await getCurrentGitBranch()
// Get all commits from last release to current branch
consola.log(`${currentGitBranch}...${lastGitTag}`)
let commits = await getGitDiff(currentGitBranch, lastGitTag)
// Parse commits as conventional commits
commits = parseCommits(commits)
// Filter commits
commits = commits.filter(c =>
allowedTypes.includes(c.type) &&
c.scope !== 'deps'
)
// Generate markdown
const markdown = generateMarkDown(commits)
process.stdout.write('\n\n' + markdown + '\n\n')
await writeFile('CHANGELOG.md', markdown, 'utf-8')
}
function execCommand (cmd, args) {
return execa(cmd, args).then(r => r.stdout)
}
async function getLastGitTag () {
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const r = await execCommand('git', ['--no-pager', 'tag', '-l', '--sort=taggerdate']).then(r => r.split('\n'))
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return r[r.length - 1]
}
async function getCurrentGitBranch () {
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const r = await execCommand('git', ['rev-parse', '--abbrev-ref', 'HEAD'])
return r
}
async function getGitDiff (from, to) {
// # https://git-scm.com/docs/pretty-formats
const r = await execCommand('git', ['--no-pager', 'log', `${from}...${to}`, '--pretty=%s|%h|%an|%ae'])
return r.split('\n').map((line) => {
const [message, commit, authorName, authorEmail] = line.split('|')
return { message, commit, authorName, authorEmail }
})
}
function parseCommits (commits) {
return commits.filter(c => c.message.includes(':')).map((commit) => {
let [type, ...message] = commit.message.split(':')
message = message.join(':')
// Extract references from message
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message = message.replace(/\((fixes) #\d+\)/g, '')
const references = []
const referencesRegex = /#[0-9]+/g
let m
while (m = referencesRegex.exec(message)) { // eslint-disable-line no-cond-assign
references.push(m[0])
}
// Remove references and normalize
message = message.replace(referencesRegex, '').replace(/\(\)/g, '').trim()
// Extract scope from type
let scope = type.match(/\((.*)\)/)
if (scope) {
scope = scope[1]
}
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if (!scope) {
scope = 'general'
}
type = type.split('(')[0]
return {
...commit,
message,
type,
scope,
references
}
})
}
function generateMarkDown (commits) {
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const typeGroups = groupBy(commits, 'type')
let markdown = ''
for (const type of allowedTypes) {
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const group = typeGroups[type]
if (!group || !group.length) {
continue
}
const { title } = types[type]
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markdown += '\n\n' + '### ' + title + '\n\n'
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const scopeGroups = groupBy(group, 'scope')
for (const scopeName in scopeGroups) {
markdown += '- `' + scopeName + '`' + '\n'
for (const commit of scopeGroups[scopeName]) {
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markdown += ' - ' + commit.references.join(', ') + (commit.references.length ? ' ' : '') + commit.message.replace(/^(.)/, v => v.toUpperCase()) + '\n'
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}
}
}
const authors = sortBy(uniq(commits.map(commit => commit.authorName).filter(an => !isKnownAuthor(an))))
if (authors.length) {
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markdown += '\n\n' + '### ' + '💖 Thanks to' + '\n\n'
markdown += authors.map(name => '- ' + name).join('\n')
}
return markdown.trim()
}
main().catch(consola.error)