12345678910111213141516171819202122232425262728293031323334353637383940414243
import { Command } from "../command.ts";import { UnknownCompletionCommand } from "../_errors.ts";import type { ICompletion } from "../types.ts";
/** Execute auto completion method of command and action. */export class CompleteCommand extends Command<  void,  void,  void,  [action: string, commandNames?: Array<string>]> {  public constructor(cmd?: Command) {    super();    return this      .description(        "Get completions for given action from given command.",      )      .arguments("<action:string> [command...:string]")      .action(async (_, action: string, commandNames?: Array<string>) => {        let parent: Command | undefined;        const completeCommand: Command = commandNames          ?.reduce((cmd: Command, name: string): Command => {            parent = cmd;            const childCmd: Command | undefined = cmd.getCommand(name, false);            if (!childCmd) {              throw new UnknownCompletionCommand(name, cmd.getCommands());            }            return childCmd;          }, cmd || this.getMainCommand()) ?? (cmd || this.getMainCommand());
        const completion: ICompletion | undefined = completeCommand          .getCompletion(action);        const result: Array<string | number | boolean> =          await completion?.complete(completeCommand, parent) ?? [];
        if (result?.length) {          Deno.stdout.writeSync(new TextEncoder().encode(result.join("\n")));        }      })      .reset();  }}