feat(core): Integrate remote experiments configuration (#12539)

packages/core/src/code_assist/experiments/client_metadata.ts

@@ -5,7 +5,7 @@
  */
 
 import { getReleaseChannel } from '../../utils/channel.js';
-import type { ClientMetadata, Platform } from './types.js';
+import type { ClientMetadata, ClientMetadataPlatform } from '../types.js';
 import { fileURLToPath } from 'node:url';
 import path from 'node:path';
 
@@ -15,7 +15,7 @@ const __dirname = path.dirname(__filename);
 // Cache all client metadata.
 let clientMetadataPromise: Promise<ClientMetadata> | undefined;
 
-function getPlatform(): Platform {
+function getPlatform(): ClientMetadataPlatform {
   const platform = process.platform;
   const arch = process.arch;
 
@@ -45,10 +45,10 @@ function getPlatform(): Platform {
 export async function getClientMetadata(): Promise<ClientMetadata> {
   if (!clientMetadataPromise) {
     clientMetadataPromise = (async () => ({
-      ide_type: 'GEMINI_CLI',
-      ide_version: process.env['CLI_VERSION'] || process.version,
+      ideName: 'GEMINI_CLI',
+      ideVersion: process.env['CLI_VERSION'] || process.version,
       platform: getPlatform(),
-      update_channel: await getReleaseChannel(__dirname),
+      updateChannel: await getReleaseChannel(__dirname),
     }))();
   }
   return await clientMetadataPromise;

packages/core/src/code_assist/experiments/experiments.ts

@@ -44,6 +44,6 @@ function parseExperiments(response: ListExperimentsResponse): Experiments {
   }
   return {
     flags,
-    experimentIds: response.experiment_ids ?? [],
+    experimentIds: response.experimentIds ?? [],
   };
 }

packages/core/src/code_assist/experiments/types.ts

@@ -4,26 +4,28 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+import type { ClientMetadata } from '../types.js';
+
 export interface ListExperimentsRequest {
   project: string;
   metadata?: ClientMetadata;
 }
 
 export interface ListExperimentsResponse {
-  experiment_ids?: number[];
+  experimentIds?: number[];
   flags?: Flag[];
-  filtered_flags?: FilteredFlag[];
-  debug_string?: string;
+  filteredFlags?: FilteredFlag[];
+  debugString?: string;
 }
 
 export interface Flag {
   name?: string;
-  bool_value?: boolean;
-  float_value?: number;
-  int_value?: string; // int64
-  string_value?: string;
-  int32_list_value?: Int32List;
-  string_list_value?: StringList;
+  boolValue?: boolean;
+  floatValue?: number;
+  intValue?: string; // int64
+  stringValue?: string;
+  int32ListValue?: Int32List;
+  stringListValue?: StringList;
 }
 
 export interface Int32List {
@@ -38,21 +40,3 @@ export interface FilteredFlag {
   name?: string;
   reason?: string;
 }
-
-export interface ClientMetadata {
-  ide_type?: IdeType;
-  ide_version?: string;
-  platform?: Platform;
-  update_channel?: 'nightly' | 'preview' | 'stable';
-  duet_project?: string;
-}
-
-export type IdeType = 'GEMINI_CLI';
-
-export type Platform =
-  | 'PLATFORM_UNSPECIFIED'
-  | 'DARWIN_AMD64'
-  | 'DARWIN_ARM64'
-  | 'LINUX_AMD64'
-  | 'LINUX_ARM64'
-  | 'WINDOWS_AMD64';