Generate a CHANGELOG.md file from GitHub releases

compileChangelog.js

const fs = require('fs')
const { Octokit } = require('@octokit/core')
const prettier = require('prettier')
const defaultPrettierConfig = require('../.prettierrc')

const prettierConfig = {
  ...defaultPrettierConfig,
  parser: 'markdown',
}

// Create a personal access token at https://github.com/settings/tokens/new?scopes=repo
const octokit = new Octokit({
  auth: `personal-access-token`,
})

const compile = async () => {
  let content = ''

  const res = await octokit.request('GET /repos/{owner}/{repo}/releases', {
    owner: 'owner',
    repo: 'repo',
    per_page: 100,
  })

  res.data.forEach((release) => {
    content += `
## [${release.tag_name.slice(1)}] - ${release.published_at.slice(0, 10)}

${release.body}
    `
  })

  fs.writeFile(
    'CHANGELOG.md',
    prettier.format(content, prettierConfig),
    'utf8',
    (err) =>
      // eslint-disable-next-line
      console.log(err ? err : `Write file CHANGELOG.md`)
  )
}

compile()