refactor: Centralize session ID generation and propagation

packages/cli/src/config/config.ts

@@ -120,6 +120,7 @@ export async function loadCliConfig(
   settings: Settings,
   extensions: ExtensionConfig[],
   geminiIgnorePatterns: string[],
+  sessionId: string,
 ): Promise<Config> {
   loadEnvironment();
 
@@ -148,6 +149,7 @@ export async function loadCliConfig(
   const mcpServers = mergeMcpServers(settings, extensions);
 
   return new Config({
+    sessionId,
     contentGeneratorConfig,
     embeddingModel: DEFAULT_GEMINI_EMBEDDING_MODEL,
     sandbox: argv.sandbox ?? settings.sandbox,

packages/cli/src/gemini.tsx

@@ -31,6 +31,7 @@ import {
   WebFetchTool,
   WebSearchTool,
   WriteFileTool,
+  sessionId,
 } from '@gemini-cli/core';
 
 export async function main() {
@@ -57,6 +58,7 @@ export async function main() {
     settings.merged,
     extensions,
     geminiIgnorePatterns,
+    sessionId,
   );
 
   // Initialize centralized FileDiscoveryService
@@ -180,5 +182,6 @@ async function loadNonInteractiveConfig(
     nonInteractiveSettings,
     extensions,
     config.getGeminiIgnorePatterns(),
+    config.getSessionId(),
   );
 }

packages/cli/src/ui/App.test.tsx

@@ -190,6 +190,7 @@ describe('App UI', () => {
       userMemory: '',
       geminiMdFileCount: 0,
       showMemoryUsage: false,
+      sessionId: 'test-session-id',
       // Provide other required fields for ConfigParameters if necessary
     }) as unknown as MockServerConfig;
 

packages/cli/src/ui/hooks/slashCommandProcessor.ts

@@ -493,7 +493,7 @@ Add any other context about the problem here.
         description: 'save conversation checkpoint. Usage: /save [tag]',
         action: async (_mainCommand, subCommand, _args) => {
           const tag = (subCommand || '').trim();
-          const logger = new Logger();
+          const logger = new Logger(config?.getSessionId() || '');
           await logger.initialize();
           const chat = await config?.getGeminiClient()?.getChat();
           const history = chat?.getHistory() || [];
@@ -519,7 +519,7 @@ Add any other context about the problem here.
           'resume from conversation checkpoint. Usage: /resume [tag]',
         action: async (_mainCommand, subCommand, _args) => {
           const tag = (subCommand || '').trim();
-          const logger = new Logger();
+          const logger = new Logger(config?.getSessionId() || '');
           await logger.initialize();
           const conversation = await logger.loadCheckpoint(tag);
           if (conversation.length === 0) {

packages/cli/src/ui/hooks/useLogger.ts

@@ -5,6 +5,7 @@
  */
 
 import { useState, useEffect } from 'react';
+import { sessionId } from '@gemini-cli/core';
 import { Logger } from '@gemini-cli/core';
 
 /**
@@ -14,7 +15,7 @@ export const useLogger = () => {
   const [logger, setLogger] = useState<Logger | null>(null);
 
   useEffect(() => {
-    const newLogger = new Logger();
+    const newLogger = new Logger(sessionId);
     /**
      * Start async initialization, no need to await. Using await slows down the
      * time from launch to see the gemini-cli prompt and it's better to not save