cli: added migrate:package-scripts

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/cli/src/commands/index.ts

@@ -238,6 +238,13 @@ export function registerCommands(program: CommanderStatic) {
     .description(`Add package role field to packages that don't have it`)
     .action(lazy(() => import('./migrate/packageRole').then(m => m.default)));
 
+  program
+    .command('migrate:package-scripts')
+    .description('Set package scripts according to each package role')
+    .action(
+      lazy(() => import('./migrate/packageScripts').then(m => m.command)),
+    );
+
   program
     .command('versions:bump')
     .option(

packages/cli/src/commands/migrate/packageScripts.ts

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2020 The Backstage Authors
+ *
+ * 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.
+ */
+
+import fs from 'fs-extra';
+import { resolve as resolvePath } from 'path';
+import { PackageGraph } from '../../lib/monorepo';
+import { readPackageRole, PackageRoleName } from '../../lib/role';
+
+const bundledRoles: PackageRoleName[] = ['app', 'backend'];
+const noStartRoles: PackageRoleName[] = ['cli', 'common-library'];
+
+export async function command() {
+  const packages = await PackageGraph.listTargetPackages();
+
+  await Promise.all(
+    packages.map(async ({ dir, packageJson }) => {
+      const roleInfo = readPackageRole(packageJson);
+      if (!roleInfo) {
+        return;
+      }
+
+      const hasStart = !noStartRoles.includes(roleInfo.role);
+      const isBundled = bundledRoles.includes(roleInfo.role);
+
+      const expectedScripts = {
+        ...(hasStart && { start: 'backstage-cli start' }),
+        ...(isBundled
+          ? { bundle: 'backstage-cli bundle' }
+          : { build: 'backstage-cli build' }),
+        lint: 'backstage-cli lint',
+        test: 'backstage-cli test',
+        clean: 'backstage-cli clean',
+        ...(!isBundled && {
+          postpack: 'backstage-cli postpack',
+          prepack: 'backstage-cli prepack',
+        }),
+      };
+
+      let changed = false;
+      const currentScripts = (packageJson.scripts = packageJson.scripts || {});
+
+      for (const [name, value] of Object.entries(expectedScripts)) {
+        if (currentScripts[name] !== value) {
+          changed = true;
+          currentScripts[name] = value;
+        }
+      }
+
+      if (changed) {
+        console.log(`Updating scripts for ${packageJson.name}`);
+        await fs.writeJson(resolvePath(dir, 'package.json'), packageJson, {
+          spaces: 2,
+        });
+      }
+    }),
+  );
+}