feat: expose a resolveCommand hook allowing cloud publishing though a simple redirect

Author: DimitarTachev

lib/common/dispatchers.ts

@@ -1,8 +1,15 @@
 import * as queue from "./queue";
 import * as path from "path";
+import { hook } from "./helpers";
 
 export class CommandDispatcher implements ICommandDispatcher {
+	// required by the hooksService
+	get injector(): IInjector {
+		return this.$injector;
+	}
+
 	constructor(private $logger: ILogger,
+		private $injector: IInjector,
 		private $cancellation: ICancellationService,
 		private $commandsService: ICommandsService,
 		private $staticConfig: Config.IStaticConfig,
@@ -24,7 +31,7 @@ export class CommandDispatcher implements ICommandDispatcher {
 		}
 
 		let commandName = this.getCommandName();
-		const commandArguments = this.$options.argv._.slice(1);
+		let commandArguments = this.$options.argv._.slice(1);
 		const lastArgument: string = _.last(commandArguments);
 
 		if (this.$options.help) {
@@ -36,6 +43,8 @@ export class CommandDispatcher implements ICommandDispatcher {
 			commandName = "help";
 		}
 
+		({ commandName, commandArguments, argv: process.argv } = await this.resolveCommand(commandName, commandArguments, process.argv));
+
 		await this.$cancellation.begin("cli");
 
 		await this.$commandsService.tryExecuteCommand(commandName, commandArguments);
@@ -45,6 +54,12 @@ export class CommandDispatcher implements ICommandDispatcher {
 		return this.$commandsService.completeCommand();
 	}
 
+	@hook("resolveCommand")
+	private async resolveCommand(commandName: string, commandArguments: string[], argv: string[]) {
+		// just a hook point
+		return { commandName, commandArguments, argv };
+	}
+
 	private getCommandName(): string {
 		const remaining: string[] = this.$options.argv._;
 		if (remaining.length > 0) {