69 lines
2.8 KiB
JavaScript
69 lines
2.8 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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const lodash_1 = require("lodash");
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const microargs_1 = __importDefault(require("microargs"));
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const path_1 = __importDefault(require("path"));
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class CLIError extends Error {
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}
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function optionToString(optionName) {
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return optionName.length === 1 ? `-${optionName}` : `--${optionName}`;
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}
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function optionsToString(optionsKeys) {
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return optionsKeys.map(optionToString).join(" ");
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}
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function printHelp(scriptName, annotations, logger) {
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if (lodash_1.isEmpty(annotations)) {
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logger.log("Documentation not found");
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return null;
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}
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const { description, params, options } = annotations;
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const extra = lodash_1.omit(annotations, ["description", "params", "options"]);
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const usageOptions = lodash_1.isEmpty(options) ? "" : "[options]";
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const usageParams = !Array.isArray(params) || lodash_1.isEmpty(params) ? "" : `[${params.join(" ")}]`;
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logger.log(`Usage: ${path_1.default.basename(scriptName)} ${usageOptions} ${usageParams}\n`);
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if (description) {
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logger.log(`${description}\n`);
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}
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if (!lodash_1.isEmpty(options)) {
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logger.log("Options:\n");
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lodash_1.forEach(options, (value, key) => {
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logger.log(` ${lodash_1.padEnd(optionToString(key), 12)}${value}`);
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});
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}
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lodash_1.forEach(extra, (value, key) => {
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logger.log(`\n${lodash_1.capitalize(key)}:\n`);
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logger.log(`${value}\n`);
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});
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}
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const Cli = (argv, annotations = {}, help = printHelp, logger = console) => {
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return (callback) => {
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const { params, options } = microargs_1.default(argv.slice(2));
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const scriptName = path_1.default.basename(argv[1]);
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if (lodash_1.isString(annotations)) {
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annotations = {
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description: annotations
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};
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}
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if (options.help) {
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return help(scriptName, annotations, logger);
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}
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const annotatedOptionsKeys = (annotations &&
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annotations.options &&
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Object.keys(annotations.options)) ||
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[];
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const optionsKeys = Object.keys(options);
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const illegalOptionsKeys = lodash_1.difference(optionsKeys, annotatedOptionsKeys);
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if (annotatedOptionsKeys.length && illegalOptionsKeys.length) {
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const msg = `Illegal option: ${optionsToString(illegalOptionsKeys)}\n` +
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`Available options: ${optionsToString(annotatedOptionsKeys)}\n` +
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`Type "${scriptName} --help" for more information`;
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throw new CLIError(msg);
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}
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return callback(options, ...params);
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};
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};
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Cli.CliError = CLIError;
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module.exports = Cli;
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//# sourceMappingURL=index.js.map
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