scripts: add scripts for making an isolated release of one or a few packages

scripts/isolated-release.js

@@ -0,0 +1,60 @@
+#!/usr/bin/env node
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const path = require('path');
+const childProcess = require('child_process');
+// eslint-disable-next-line import/no-extraneous-dependencies
+const LernaProject = require('@lerna/project');
+
+// Prepare a release of the provided packages, e.g. @backstage/core
+async function main(args) {
+  if (args.includes('--help') || args.length === 0) {
+    const arg0 = path.relative(process.cwd(), process.argv[1]);
+    console.log(`Usage: ${process.argv0} ${arg0} ...<package>`);
+    process.exit(1);
+  }
+
+  const project = new LernaProject(__dirname);
+  const packages = await project.getPackages();
+  const ignoreArgs = packages
+    .filter(p => !args.includes(p.name))
+    .flatMap(p => ['--ignore', p.name]);
+
+  const { status } = childProcess.spawnSync(
+    'yarn',
+    ['changeset', 'version', ...ignoreArgs],
+    {
+      stdio: 'inherit',
+    },
+  );
+  if (status !== 0) {
+    return;
+  }
+
+  childProcess.spawnSync(
+    'yarn',
+    ['prettier', '--write', '{packages,plugins}/*/{package.json,CHANGELOG.md}'],
+    {
+      stdio: 'inherit',
+    },
+  );
+}
+
+main(process.argv.slice(2)).catch(error => {
+  console.error(error.stack);
+  process.exit(1);
+});