71 lines
1.6 KiB
JavaScript
71 lines
1.6 KiB
JavaScript
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'use strict';
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/**
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* Contains "command" code for "one-and-dones"--options passed
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* to Mocha which cause it to just dump some info and exit.
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* See {@link module:lib/cli/one-and-dones.ONE_AND_DONE_ARGS ONE_AND_DONE_ARGS} for more info.
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* @module
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* @private
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*/
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const align = require('wide-align');
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const Mocha = require('../mocha');
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/**
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* Dumps a sorted list of the enumerable, lower-case keys of some object
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* to `STDOUT`.
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* @param {Object} obj - Object, ostensibly having some enumerable keys
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* @ignore
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* @private
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*/
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const showKeys = obj => {
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console.log();
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const keys = Object.keys(obj);
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const maxKeyLength = keys.reduce((max, key) => Math.max(max, key.length), 0);
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keys
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.filter(
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key => /^[a-z]/.test(key) && !obj[key].browserOnly && !obj[key].abstract
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)
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.sort()
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.forEach(key => {
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const description = obj[key].description;
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console.log(
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` ${align.left(key, maxKeyLength + 1)}${
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description ? `- ${description}` : ''
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}`
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);
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});
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console.log();
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};
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/**
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* Handlers for one-and-done options
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* @namespace
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* @private
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*/
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exports.ONE_AND_DONES = {
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/**
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* Dump list of built-in interfaces
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* @private
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*/
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'list-interfaces': () => {
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showKeys(Mocha.interfaces);
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},
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/**
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* Dump list of built-in reporters
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* @private
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*/
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'list-reporters': () => {
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showKeys(Mocha.reporters);
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}
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};
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/**
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* A Set of all one-and-done options
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* @type Set<string>
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* @private
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*/
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exports.ONE_AND_DONE_ARGS = new Set(
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['help', 'h', 'version', 'V'].concat(Object.keys(exports.ONE_AND_DONES))
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);
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