refactor(logging): Centralize all console messaging to a shared logger (part 1) (#11537)

packages/cli/src/config/config.ts

@@ -36,6 +36,7 @@ import {
   FatalConfigError,
   getPty,
   EDIT_TOOL_NAME,
+  debugLogger,
 } from '@google/gemini-cli-core';
 import type { Settings } from './settings.js';
 
@@ -49,16 +50,6 @@ import { isWorkspaceTrusted } from './trustedFolders.js';
 import { createPolicyEngineConfig } from './policy.js';
 import type { ExtensionEnablementManager } from './extensions/extensionEnablement.js';
 
-// Simple console logger for now - replace with actual logger if available
-const logger = {
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  debug: (...args: any[]) => console.debug('[DEBUG]', ...args),
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  warn: (...args: any[]) => console.warn('[WARN]', ...args),
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  error: (...args: any[]) => console.error('[ERROR]', ...args),
-};
-
 export interface CliArgs {
   query: string | undefined;
   model: string | undefined;
@@ -210,7 +201,7 @@ export async function parseArguments(settings: Settings): Promise<CliArgs> {
         )
         // Ensure validation flows through .fail() for clean UX
         .fail((msg, err, yargs) => {
-          console.error(msg || err?.message || 'Unknown error');
+          debugLogger.error(msg || err?.message || 'Unknown error');
           yargs.showHelp();
           process.exit(1);
         })
@@ -313,7 +304,7 @@ export async function loadHierarchicalGeminiMemory(
   const effectiveCwd = isHomeDirectory ? '' : currentWorkingDirectory;
 
   if (debugMode) {
-    logger.debug(
+    debugLogger.debug(
       `CLI: Delegating hierarchical memory load to server for CWD: ${currentWorkingDirectory} (memoryImportFormat: ${memoryImportFormat})`,
     );
   }
@@ -470,7 +461,7 @@ export async function loadCliConfig(
 
   // Force approval mode to default if the folder is not trusted.
   if (!trustedFolder && approvalMode !== ApprovalMode.DEFAULT) {
-    logger.warn(
+    debugLogger.warn(
       `Approval mode overridden to "default" because the current folder is not trusted.`,
     );
     approvalMode = ApprovalMode.DEFAULT;
@@ -700,7 +691,7 @@ function mergeMcpServers(settings: Settings, extensions: GeminiCLIExtension[]) {
   for (const extension of extensions) {
     Object.entries(extension.mcpServers || {}).forEach(([key, server]) => {
       if (mcpServers[key]) {
-        logger.warn(
+        debugLogger.warn(
           `Skipping extension MCP config for server with key "${key}" as it already exists.`,
         );
         return;

packages/cli/src/config/extension.ts

@@ -23,6 +23,7 @@ import {
   logExtensionUninstall,
   logExtensionUpdateEvent,
   logExtensionDisable,
+  debugLogger,
 } from '@google/gemini-cli-core';
 import * as fs from 'node:fs';
 import * as path from 'node:path';
@@ -233,7 +234,7 @@ export function loadExtension(
       id,
     };
   } catch (e) {
-    console.error(
+    debugLogger.error(
       `Warning: Skipping extension in ${effectiveExtensionPath}: ${getErrorMessage(
         e,
       )}`,
@@ -324,7 +325,7 @@ export function annotateActiveExtensions(
 export async function requestConsentNonInteractive(
   consentDescription: string,
 ): Promise<boolean> {
-  console.info(consentDescription);
+  debugLogger.log(consentDescription);
   const result = await promptForConsentNonInteractive(
     'Do you want to continue? [Y/n]: ',
   );

packages/cli/src/config/extensions/github.ts

@@ -6,9 +6,10 @@
 
 import { simpleGit } from 'simple-git';
 import { getErrorMessage } from '../../utils/errors.js';
-import type {
-  ExtensionInstallMetadata,
-  GeminiCLIExtension,
+import {
+  debugLogger,
+  type ExtensionInstallMetadata,
+  type GeminiCLIExtension,
 } from '@google/gemini-cli-core';
 import { ExtensionUpdateState } from '../../ui/state/extensions.js';
 import * as os from 'node:os';
@@ -160,7 +161,7 @@ export async function checkForExtensionUpdate(
       workspaceDir: cwd,
     });
     if (!newExtension) {
-      console.error(
+      debugLogger.error(
         `Failed to check for update for local extension "${extension.name}". Could not load extension from source path: ${installMetadata.source}`,
       );
       return ExtensionUpdateState.ERROR;
@@ -182,12 +183,14 @@ export async function checkForExtensionUpdate(
       const git = simpleGit(extension.path);
       const remotes = await git.getRemotes(true);
       if (remotes.length === 0) {
-        console.error('No git remotes found.');
+        debugLogger.error('No git remotes found.');
         return ExtensionUpdateState.ERROR;
       }
       const remoteUrl = remotes[0].refs.fetch;
       if (!remoteUrl) {
-        console.error(`No fetch URL found for git remote ${remotes[0].name}.`);
+        debugLogger.error(
+          `No fetch URL found for git remote ${remotes[0].name}.`,
+        );
         return ExtensionUpdateState.ERROR;
       }
 
@@ -197,7 +200,7 @@ export async function checkForExtensionUpdate(
       const lsRemoteOutput = await git.listRemote([remoteUrl, refToCheck]);
 
       if (typeof lsRemoteOutput !== 'string' || lsRemoteOutput.trim() === '') {
-        console.error(`Git ref ${refToCheck} not found.`);
+        debugLogger.error(`Git ref ${refToCheck} not found.`);
         return ExtensionUpdateState.ERROR;
       }
 
@@ -205,7 +208,7 @@ export async function checkForExtensionUpdate(
       const localHash = await git.revparse(['HEAD']);
 
       if (!remoteHash) {
-        console.error(
+        debugLogger.error(
           `Unable to parse hash from git ls-remote output "${lsRemoteOutput}"`,
         );
         return ExtensionUpdateState.ERROR;
@@ -217,12 +220,12 @@ export async function checkForExtensionUpdate(
     } else {
       const { source, releaseTag } = installMetadata;
       if (!source) {
-        console.error(`No "source" provided for extension.`);
+        debugLogger.error(`No "source" provided for extension.`);
         return ExtensionUpdateState.ERROR;
       }
       const repoInfo = tryParseGithubUrl(source);
       if (!repoInfo) {
-        console.error(
+        debugLogger.error(
           `Source is not a valid GitHub repository for release checks: ${source}`,
         );
         return ExtensionUpdateState.ERROR;
@@ -244,7 +247,7 @@ export async function checkForExtensionUpdate(
       return ExtensionUpdateState.UP_TO_DATE;
     }
   } catch (error) {
-    console.error(
+    debugLogger.error(
       `Failed to check for updates for extension "${installMetadata.source}": ${getErrorMessage(error)}`,
     );
     return ExtensionUpdateState.ERROR;

packages/cli/src/config/extensions/update.ts

@@ -18,7 +18,7 @@ import {
   loadExtensionConfig,
 } from '../extension.js';
 import { checkForExtensionUpdate } from './github.js';
-import type { GeminiCLIExtension } from '@google/gemini-cli-core';
+import { debugLogger, type GeminiCLIExtension } from '@google/gemini-cli-core';
 import * as fs from 'node:fs';
 import { getErrorMessage } from '../../utils/errors.js';
 
@@ -101,7 +101,7 @@ export async function updateExtension(
       updatedVersion,
     };
   } catch (e) {
-    console.error(
+    debugLogger.error(
       `Error updating extension, rolling back. ${getErrorMessage(e)}`,
     );
     dispatchExtensionStateUpdate({