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30 lines
1.0 KiB
TypeScript
30 lines
1.0 KiB
TypeScript
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// Loaded from https://deno.land/x/cliffy@v0.12.1/packages/command/commands/help.ts
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import { IFlags } from '../../flags/lib/types.ts';
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import { Command } from '../lib/command.ts';
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import { CommandType } from '../types/command.ts';
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/**
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* Generates well formatted and colored help output for specified command.
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*/
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export class HelpCommand extends Command {
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public constructor( cmd?: Command ) {
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super();
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this.type( 'command', new CommandType() )
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.arguments( '[command:command]' )
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.description( 'Show this help or the help of a sub-command.' )
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.action( ( flags: IFlags, name?: string ) => {
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if ( !cmd ) {
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cmd = name ? this.getGlobalParent()?.getBaseCommand( name ) : this.getGlobalParent();
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}
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if ( !cmd ) {
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throw new Error( `Failed to generate help for command '${ name }'. Command not found.` );
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}
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cmd.help();
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Deno.exit( 0 );
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} );
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}
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}
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