chat - support for custom modes from CLI (microsoft#253182)

* chat - support for custom modes from CLI

* .

Author: bpasero

src/vs/platform/environment/node/argv.ts

@@ -83,8 +83,8 @@ export const OPTIONS: OptionDescriptions<Required<NativeParsedArgs>> = {
 		description: 'Pass in a prompt to run in a chat session in the current working directory.',
 		options: {
 			'_': { type: 'string[]', description: localize('prompt', "The prompt to use as chat.") },
-			'mode': { type: 'string', cat: 'o', alias: 'm', args: 'agent|ask|edit', description: localize('chatMode', "The mode to use for the chat session. Defaults to 'agent'.") },
-			'add-file': { type: 'string[]', cat: 'o', alias: 'a', description: localize('addFile', "Add files as context to the chat session.") },
+			'mode': { type: 'string', cat: 'o', alias: 'm', args: 'mode', description: localize('chatMode', "The mode to use for the chat session. Defaults to 'agent'.") },
+			'add-file': { type: 'string[]', cat: 'o', alias: 'a', args: 'path', description: localize('addFile', "Add files as context to the chat session.") },
 			'help': { type: 'boolean', cat: 'o', alias: 'h', description: localize('help', "Print usage.") }
 		}
 	},

src/vs/workbench/contrib/chat/electron-browser/chat.contribution.ts

@@ -15,7 +15,7 @@ import { registerChatDeveloperActions } from './actions/chatDeveloperActions.js'
 import { INativeWorkbenchEnvironmentService } from '../../../services/environment/electron-browser/environmentService.js';
 import { ICommandService } from '../../../../platform/commands/common/commands.js';
 import { ACTION_ID_NEW_CHAT, CHAT_OPEN_ACTION_ID, IChatViewOpenOptions } from '../browser/actions/chatActions.js';
-import { ChatModeKind, validateChatMode } from '../common/constants.js';
+import { ChatModeKind } from '../common/constants.js';
 import { ipcRenderer } from '../../../../base/parts/sandbox/electron-browser/globals.js';
 import { IWorkspaceTrustRequestService } from '../../../../platform/workspace/common/workspaceTrust.js';
 import { URI } from '../../../../base/common/uri.js';
@@ -79,7 +79,7 @@ class ChatCommandLineHandler extends Disposable {
 
 		const opts: IChatViewOpenOptions = {
 			query: args._.length > 0 ? args._.join(' ') : '',
-			mode: validateChatMode(args.mode) ?? ChatModeKind.Agent,
+			mode: args.mode ?? ChatModeKind.Agent,
 			attachFiles: args['add-file']?.map(file => URI.file(resolve(file))), // use `resolve` to deal with relative paths properly
 		};