Ensure spec.params and spec.systemParams are not empty (#5715)

Author: joehan

CHANGELOG.md

@@ -3,3 +3,4 @@
 - Fixes an issue where Secret Manager secrets were tagged incorrectly (#5704).
 - Fix bug where Custom Event channels weren't automatically crated on function deploys (#5700)
 - Lift GCF 2nd gen naming restrictions (#5690)
+- Fixes a bug where `ext:install` and `ext:configure` would error on extensions with no params.

src/commands/ext-configure.ts

@@ -75,9 +75,8 @@ export const command = new Command("ext:configure <extensionInstanceId>")
       instanceId,
       projectDir: config.projectDir,
     });
-
     const [immutableParams, tbdParams] = partition(
-      spec.params.concat(spec.systemParams ?? []),
+      (spec.params ?? []).concat(spec.systemParams ?? []),
       (param) => param.immutable ?? false
     );
     infoImmutableParams(immutableParams, oldParamValues);

src/commands/ext-install.ts

@@ -207,7 +207,7 @@ async function installToManifest(options: InstallExtensionOptions): Promise<void
 
   const paramBindingOptions = await paramHelper.getParams({
     projectId,
-    paramSpecs: spec.params.concat(spec.systemParams ?? []),
+    paramSpecs: (spec.params ?? []).concat(spec.systemParams ?? []),
     nonInteractive,
     paramsEnvPath,
     instanceId,

src/extensions/extensionsApi.ts

@@ -365,17 +365,20 @@ async function patchInstance(args: {
   return pollRes;
 }
 
-function populateResourceProperties(spec: ExtensionSpec): void {
+function populateSpec(spec: ExtensionSpec): void {
   if (spec) {
-    spec.resources.forEach((r) => {
+    for (const r of spec.resources) {
       try {
         if (r.propertiesYaml) {
           r.properties = yaml.safeLoad(r.propertiesYaml);
         }
       } catch (err: any) {
         logger.debug(`[ext] failed to parse resource properties yaml: ${err}`);
       }
-    });
+    }
+    // We need to populate empty repeated fields with empty arrays, since proto wire format removes them.
+    spec.params = spec.params ?? [];
+    spec.systemParams = spec.systemParams ?? [];
   }
 }
 
@@ -405,7 +408,7 @@ export async function createSource(
     masterTimeout: 600000,
   });
   if (pollRes.spec) {
-    populateResourceProperties(pollRes.spec);
+    populateSpec(pollRes.spec);
   }
   return pollRes;
 }
@@ -418,7 +421,7 @@ export async function createSource(
 export async function getSource(sourceName: string): Promise<ExtensionSource> {
   const res = await apiClient.get<ExtensionSource>(`/${sourceName}`);
   if (res.body.spec) {
-    populateResourceProperties(res.body.spec);
+    populateSpec(res.body.spec);
   }
   return res.body;
 }
@@ -434,7 +437,7 @@ export async function getExtensionVersion(extensionVersionRef: string): Promise<
   try {
     const res = await apiClient.get<ExtensionVersion>(`/${refs.toExtensionVersionName(ref)}`);
     if (res.body.spec) {
-      populateResourceProperties(res.body.spec);
+      populateSpec(res.body.spec);
     }
     return res.body;
   } catch (err: any) {