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33 lines
1.0 KiB
TypeScript
33 lines
1.0 KiB
TypeScript
// Loaded from https://deno.land/x/cliffy@v0.18.0/command/help/mod.ts
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import { Command } from "../command.ts";
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import { UnknownCommand } from "../_errors.ts";
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import { CommandType } from "../types/command.ts";
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/** Generates well formatted and colored help output for specified command. */
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export class HelpCommand extends Command<void, [command?: string]> {
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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((_, name?: string) => {
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if (!cmd) {
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cmd = name
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? this.getGlobalParent()?.getBaseCommand(name)
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: this.getGlobalParent();
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}
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if (!cmd) {
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const cmds = this.getGlobalParent()?.getCommands();
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throw new UnknownCommand(name ?? "", cmds ?? [], [
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this.getName(),
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...this.getAliases(),
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]);
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}
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cmd.showHelp();
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Deno.exit(0);
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});
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}
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}
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