52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
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import { removeBrackets, camelcaseOptionName } from "./utils.ts";
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interface OptionConfig {
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default?: any;
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type?: any[];
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}
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export default class Option {
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/** Option name */
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name: string;
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/** Option name and aliases */
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names: string[];
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isBoolean?: boolean; // `required` will be a boolean for options with brackets
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required?: boolean;
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config: OptionConfig;
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negated: boolean;
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constructor(public rawName: string, public description: string, config?: OptionConfig) {
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this.config = Object.assign({}, config); // You may use cli.option('--env.* [value]', 'desc') to denote a dot-nested option
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rawName = rawName.replace(/\.\*/g, '');
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this.negated = false;
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this.names = removeBrackets(rawName).split(',').map((v: string) => {
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let name = v.trim().replace(/^-{1,2}/, '');
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if (name.startsWith('no-')) {
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this.negated = true;
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name = name.replace(/^no-/, '');
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}
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return camelcaseOptionName(name);
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}).sort((a, b) => a.length > b.length ? 1 : -1); // Sort names
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// Use the longest name (last one) as actual option name
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this.name = this.names[this.names.length - 1];
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if (this.negated && this.config.default == null) {
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this.config.default = true;
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}
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if (rawName.includes('<')) {
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this.required = true;
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} else if (rawName.includes('[')) {
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this.required = false;
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} else {
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// No arg needed, it's boolean flag
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this.isBoolean = true;
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}
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}
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}
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export type { OptionConfig };
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