129 lines
3.9 KiB
JavaScript
129 lines
3.9 KiB
JavaScript
/*
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* Copyright 2024 The Backstage Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { promisify } from 'util';
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import { exec as execOriginal } from 'child_process';
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import fs from 'fs/promises';
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import path from 'path';
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const exec = promisify(execOriginal);
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async function main() {
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console.log('Generating changesets for package.json dependency bumps...');
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const { stdout: diffOutput } = await exec('git diff --name-only HEAD~1');
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const diffFiles = diffOutput.split('\n');
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if (diffFiles.find(f => path.matchesGlob(f, 'workspaces/*/.changeset/*'))) {
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console.log('Changeset already exists, skipping');
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return;
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}
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const files = diffFiles
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.filter(file => file !== 'package.json') // skip root package.json
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.filter(file =>
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path.matchesGlob(file, 'workspaces/*/plugins/*/package.json'),
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);
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const workspaces = await getPackagesNamesByWorkspace(files);
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if (!Object.keys(workspaces).length) {
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console.log('No package.json changes found, skipping');
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return;
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}
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const packageBumps = await getBumps(files);
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if (packageBumps.size === 0) {
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console.log('No bumps in published packages, skipping');
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return;
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}
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const { stdout: shortHash } = await exec('git rev-parse --short HEAD');
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for (const workspace of Object.keys(workspaces)) {
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const fileName = `workspaces/${workspace}/.changeset/renovate-${shortHash.trim()}.md`;
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console.log(`Creating changeset ${fileName}`);
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await createChangeset(fileName, packageBumps, workspaces[workspace]);
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await exec(`git add ${fileName}`);
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}
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await exec('git commit --amend --no-edit');
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await exec('git push -f');
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console.log(`Added changeset for commit ${shortHash.trim()}`);
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}
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// Parses package.json files and returns the package names
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async function getPackagesNamesByWorkspace(files) {
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const workspaces = {};
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for (const file of files) {
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const data = JSON.parse(await fs.readFile(file, 'utf8'));
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const workspace = path
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.dirname(path.resolve(file, '../..'))
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.split(path.sep)
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.pop();
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if (!data.private) {
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const names = workspaces[workspace] || [];
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if (!workspaces[workspace]) {
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workspaces[workspace] = names;
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}
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names.push(data.name);
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}
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}
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return workspaces;
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}
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async function getBumps(files) {
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const bumps = new Map();
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for (const file of files) {
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const { stdout: changes } = await exec(`git show ${file}`);
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const packageDef = JSON.parse(
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await fs.readFile(path.join(process.cwd(), file), 'utf8'),
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);
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for (const change of changes.split('\n')) {
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if (!change.startsWith('+ ')) {
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continue;
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}
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const match = change.match(/"(.*?)"/g);
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const pkg = match[0].replace(/"/g, '');
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const version = match[1].replace(/"/g, '');
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// Only generate changesets for published packages
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if (packageDef.private) {
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console.log(`Ignoring bump in private package ${packageDef.name}`);
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continue;
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}
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bumps.set(pkg, version);
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}
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}
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return bumps;
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}
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async function createChangeset(fileName, packageBumps, packages) {
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let message = '';
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for (const [pkg, bump] of packageBumps) {
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message = `${message}Updated dependency \`${pkg}\` to \`${bump}\`.\n`;
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}
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const pkgs = packages.map(pkg => `'${pkg}': patch`).join('\n');
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const body = `---\n${pkgs}\n---\n\n${message.trim()}\n`;
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await fs.writeFile(fileName, body);
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}
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main().catch(error => {
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console.error(error.stack || error);
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process.exit(1);
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});
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