Scope the sidecar trailer by package so a mixed branch cannot lose it

release-tooling/dockerhub-overview.test.ts

@@ -28,8 +28,8 @@ test("the quick start's sidecars are pinned to the same versions this repo runs"
   const pins = (source: string) =>
     new Map([...source.matchAll(/image: ([^:\s]+):(v?\d\S*)/g)].map((m) => [m[1] ?? "", m[2] ?? ""]));
   const ours = new Map([
-    ...pins(readFileSync("compose.yml", "utf8")),
     ...pins(readFileSync("compose.override.yml", "utf8")),
+    ...pins(readFileSync("compose.yml", "utf8")), // production wins: the template is the prod quick start
   ]);
   const published = pins(template());
   assert.ok(published.size > 0, "the template should pin sidecars");

release-tooling/dockerhub-overview.ts

@@ -60,7 +60,13 @@ async function main(): Promise<number> {
   if (!VERSION.test(version)) return fail(`version must be X.Y.Z, got ${JSON.stringify(version)}`);
 
   const templatePath = join(import.meta.dirname, "dockerhub-overview.md.tmpl");
-  const body = renderOverview(readFileSync(templatePath, "utf8"), version);
+  let template = "";
+  try {
+    template = readFileSync(templatePath, "utf8");
+  } catch (err) {
+    return fail(`${templatePath}: ${err instanceof Error ? err.message : String(err)}`);
+  }
+  const body = renderOverview(template, version);
   const leftover = leftoverPlaceholders(body);
   if (leftover.length > 0) return fail(`${templatePath} has unrendered placeholders: ${leftover.join(", ")}`);