feat: create options for excess args and unknown options for commands (#1233)

#1232

Author: jmcdo29

.changeset/cold-eggs-collect.md

@@ -0,0 +1,7 @@
+---
+'nest-commander': minor
+---
+
+Two new options exist, `allowUnknownOptions` and `allowExcessArgs`. Both are
+optional booleans that will tell the underlying commander command to allow for
+extra options and arguments, as is already supported by commander.

packages/nest-commander/src/command-runner.interface.ts

@@ -60,6 +60,8 @@ export interface CommandMetadata {
   options?: CommandOptions;
   subCommands?: Array<Type<CommandRunner>>;
   aliases?: string[];
+  allowUnknownOptions?: boolean;
+  allowExcessArgs?: boolean;
 }
 
 export type RootCommandMetadata = Omit<CommandMetadata, 'name'> & {

packages/nest-commander/src/command-runner.service.ts

@@ -141,6 +141,12 @@ ${cliPluginError(
     if (this.options.helpConfiguration) {
       newCommand.configureHelp(this.options.helpConfiguration);
     }
+    if (command.command.allowUnknownOptions) {
+      newCommand.allowUnknownOption();
+    }
+    if (command.command.allowExcessArgs) {
+      newCommand.allowExcessArguments();
+    }
     if (command.command.arguments) {
       this.mapArgumentDescriptions(
         newCommand,