Initial release manifest package

Signed-off-by: Johan Haals <johan.haals@gmail.com>

packages/cli/src/commands/index.ts

@@ -341,6 +341,11 @@ export function registerCommands(program: CommanderStatic) {
       '--pattern <glob>',
       'Override glob for matching packages to upgrade',
     )
+    .option(
+      '--release-line <main|next>',
+      'Bump to the latest version of a specific release line',
+      'main',
+    )
     .description('Bump Backstage packages to the latest versions')
     .action(lazy(() => import('./versions/bump').then(m => m.default)));
 

packages/cli/src/commands/versions/bump.ts

@@ -60,7 +60,7 @@ export default async (cmd: Command) => {
     console.log(`Using custom pattern glob ${pattern}`);
   }
 
-  const findTargetVersion = createVersionFinder();
+  const findTargetVersion = createVersionFinder(cmd.releaseLine);
 
   // First we discover all Backstage dependencies within our own repo
   const dependencyMap = await mapDependencies(paths.targetDir, pattern);
@@ -284,7 +284,9 @@ export default async (cmd: Command) => {
   }
 };
 
-function createVersionFinder() {
+function createVersionFinder(releaseLine = 'latest') {
+  // The main release line is just an alias for latest
+  const distTag = releaseLine === 'main' ? 'latest' : releaseLine;
   const found = new Map<string, string>();
 
   return async function findTargetVersion(name: string) {
@@ -295,12 +297,23 @@ function createVersionFinder() {
 
     console.log(`Checking for updates of ${name}`);
     const info = await fetchPackageInfo(name);
-    const latest = info['dist-tags'].latest;
-    if (!latest) {
-      throw new Error(`No latest version found for ${name}`);
+    const latestVersion = info['dist-tags'].latest;
+    if (!latestVersion) {
+      throw new Error(`No target 'latest' version found for ${name}`);
     }
-    found.set(name, latest);
-    return latest;
+    if (distTag === 'latest') {
+      found.set(name, latestVersion);
+      return latestVersion;
+    }
+    const taggedVersion = info['dist-tags'][distTag];
+    if (!taggedVersion) {
+      found.set(name, latestVersion);
+      return latestVersion;
+    }
+
+    // Take release from latest of next release is older
+    found.set(name, targetVersion);
+    return targetVersion;
   };
 }
 

packages/cli/src/lib/versioning/packages.ts

@@ -28,7 +28,7 @@ const DEP_TYPES = [
 // Package data as returned by `yarn info`
 export type YarnInfoInspectData = {
   name: string;
-  'dist-tags': { latest: string };
+  'dist-tags': Record<string, string>;
   versions: string[];
   time: { [version: string]: string };
 };