93 lines
2.0 KiB
JavaScript
93 lines
2.0 KiB
JavaScript
'use strict';
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const _ = require('lodash');
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const chalk = require('chalk');
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const EOL = require('os').EOL;
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const levenshtein = require('fastest-levenshtein');
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/**
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* @param {{ [key: string]: { alias?: string } }} allowedOptions
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* @return {string[]}
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*/
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const buildAllowedOptions = (allowedOptions) => {
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let options = Object.keys(allowedOptions);
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options = options.reduce((opts, opt) => {
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const alias = allowedOptions[opt].alias;
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if (alias) {
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opts.push(alias);
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}
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return opts;
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}, options);
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options.sort();
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return options;
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};
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/**
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* @param {string[]} all
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* @param {string} invalid
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* @return {null|string}
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*/
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const suggest = (all, invalid) => {
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const maxThreshold = 10;
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for (let threshold = 1; threshold <= maxThreshold; threshold++) {
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const suggestion = all.find((option) => levenshtein.distance(option, invalid) <= threshold);
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if (suggestion) {
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return suggestion;
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}
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}
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return null;
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};
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/**
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* @param {string} opt
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* @return {string}
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*/
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const cliOption = (opt) => {
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if (opt.length === 1) {
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return `"-${opt}"`;
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}
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return `"--${_.kebabCase(opt)}"`;
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};
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/**
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* @param {string} invalid
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* @param {string|null} suggestion
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* @return {string}
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*/
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const buildMessageLine = (invalid, suggestion) => {
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let line = `Invalid option ${chalk.red(cliOption(invalid))}.`;
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if (suggestion) {
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line += ` Did you mean ${chalk.cyan(cliOption(suggestion))}?`;
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}
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return line + EOL;
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};
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/**
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* @param {{ [key: string]: any }} allowedOptions
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* @param {{ [key: string]: any }} inputOptions
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* @return {string}
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*/
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module.exports = function checkInvalidCLIOptions(allowedOptions, inputOptions) {
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const allOptions = buildAllowedOptions(allowedOptions);
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return Object.keys(inputOptions)
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.filter((opt) => !allOptions.includes(opt))
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.map(_.kebabCase)
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.reduce((msg, invalid) => {
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// NOTE: No suggestion for shortcut options because it's too difficult
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const suggestion = invalid.length >= 2 ? suggest(allOptions, invalid) : null;
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return msg + buildMessageLine(invalid, suggestion);
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}, '');
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};
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