scripts/createRelease.ts

/*!
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

//
// Generates CHANGELOG.md
//

import * as child_process from 'child_process' // eslint-disable-line no-restricted-imports
import * as nodefs from 'fs' // eslint-disable-line no-restricted-imports
import * as path from 'path'

// Must run from a subproject root folder, e.g packages/toolkit
const cwd = process.cwd()
const packageJson = JSON.parse(nodefs.readFileSync('./package.json', { encoding: 'utf-8' }))
const changesDirectory = path.join(cwd, '.changes')
const nextReleaseDirectory = path.join(changesDirectory, 'next-release')
const changesFile = path.join(changesDirectory, `${packageJson.version}.json`)

nodefs.mkdirSync(nextReleaseDirectory, { recursive: true })

const changeFiles = nodefs.readdirSync(nextReleaseDirectory)
try {
    nodefs.accessSync(changesFile)
    console.log(`error: changelog data file already exists: ${changesFile}`)
    process.exit(-1)
} catch (err) {
    // This is what we want to happen, the file should not exist
}

const timestamp = new Date().toISOString().split('T')[0]
const changelog: any = {
    date: timestamp,
    version: packageJson.version,
    entries: [],
}

for (const changeFile of changeFiles) {
    const file = JSON.parse(nodefs.readFileSync(path.join(nextReleaseDirectory, changeFile)).toString())
    changelog.entries.push(file)
}

// Write changelog file
nodefs.writeFileSync(changesFile, JSON.stringify(changelog, undefined, '\t'))
const fileData = nodefs.readFileSync(path.join(cwd, 'CHANGELOG.md'))
let append = `## ${packageJson.version} ${timestamp}\n\n`
if (changelog.entries.length === 0) {
    console.warn('no changes to release (missing .changes/ directory)')
    append += '- Miscellaneous non-user-facing changes\n'
} else {
    changelog.entries.sort((x: { type: string }, y: { type: string }) => x.type.localeCompare(y.type))
    for (const file of changelog.entries) {
        append += `- **${file.type}** ${file.description}\n`
    }
}

append += '\n' + fileData.toString()
nodefs.writeFileSync('CHANGELOG.md', append)

child_process.execSync(`git add ${changesDirectory}`)
child_process.execSync(`git rm -rf --ignore-unmatch ${nextReleaseDirectory}`)
child_process.execSync('git add CHANGELOG.md')

console.log(changesFile)