cli: add --build option to backend:image-build

packages/cli/src/commands/backend/buildImage.ts

@@ -32,6 +32,7 @@ export default async (cmd: Command) => {
   const pkgPath = paths.resolveTarget(PKG_PATH);
   const pkg = await fs.readJson(pkgPath);
   const tempDistWorkspace = await createDistWorkspace([pkg.name], {
+    buildDependencies: Boolean(cmd.build),
     files: [
       'package.json',
       'yarn.lock',

packages/cli/src/commands/index.ts

@@ -41,7 +41,7 @@ export function registerCommands(program: CommanderStatic) {
     .helpOption(', --backstage-cli-help') // Let docker handle --help
     .option('--build', 'Build packages before packing them into the image')
     .description(
-      'Build a docker , all extra options are forwarded to docker build',
+      'Bundles the package into a docker image. All extra args are forwarded to docker image build',
     )
     .action(lazy(() => import('./backend/buildImage').then(m => m.default)));
 

packages/cli/src/lib/packager/index.ts

@@ -48,6 +48,11 @@ type Options = {
    * Defaults to ['yarn.lock', 'package.json'].
    */
   files?: FileEntry[];
+
+  /**
+   * If set to true, the target packages are built before they are packaged into the workspace.
+   */
+  buildDependencies?: boolean;
 };
 
 /**
@@ -68,6 +73,13 @@ export async function createDistWorkspace(
 
   const targets = await findTargetPackages(packageNames);
 
+  if (options.buildDependencies) {
+    const scopeArgs = targets.flatMap(target => ['--scope', target.name]);
+    await run('yarn', ['lerna', 'run', ...scopeArgs, 'build'], {
+      cwd: paths.targetRoot,
+    });
+  }
+
   await moveToDistWorkspace(targetDir, targets);
 
   const files: FileEntry[] = options.files ?? ['yarn.lock', 'package.json'];