mirror of
https://github.com/swc-project/swc.git
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192 lines
4.7 KiB
TypeScript
192 lines
4.7 KiB
TypeScript
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// Loaded from https://raw.githubusercontent.com/denjucks/dex/master/lib/deps/debug@4.1.1/src/node.dew.js
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import _tty from "../../@jspm/core@1.1.0/nodelibs/tty.js";
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import _util from "../../@jspm/core@1.1.0/nodelibs/util.js";
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import { dew as _commonDewDew } from "./common.dew.js";
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import _process from "../../@jspm/core@1.1.0/nodelibs/process.js";
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var exports = {},
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_dewExec = false;
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var _global = typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : global;
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export function dew() {
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if (_dewExec) return exports;
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_dewExec = true;
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var process = _process;
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/**
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* Module dependencies.
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*/
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const tty = _tty;
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const util = _util;
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/**
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* This is the Node.js implementation of `debug()`.
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*/
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exports.init = init;
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exports.log = log;
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exports.formatArgs = formatArgs;
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exports.save = save;
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exports.load = load;
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exports.useColors = useColors;
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/**
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* Colors.
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*/
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exports.colors = [6, 2, 3, 4, 5, 1];
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try {
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// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
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// eslint-disable-next-line import/no-extraneous-dependencies
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} catch (error) {} // Swallow - we only care if `supports-color` is available; it doesn't have to be.
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/**
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* Build up the default `inspectOpts` object from the environment variables.
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*
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* $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
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*/
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exports.inspectOpts = Object.keys(process.env).filter(key => {
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return /^debug_/i.test(key);
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}).reduce((obj, key) => {
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// Camel-case
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const prop = key.substring(6).toLowerCase().replace(/_([a-z])/g, (_, k) => {
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return k.toUpperCase();
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}); // Coerce string value into JS value
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let val = process.env[key];
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if (/^(yes|on|true|enabled)$/i.test(val)) {
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val = true;
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} else if (/^(no|off|false|disabled)$/i.test(val)) {
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val = false;
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} else if (val === 'null') {
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val = null;
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} else {
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val = Number(val);
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}
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obj[prop] = val;
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return obj;
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}, {});
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/**
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* Is stdout a TTY? Colored output is enabled when `true`.
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*/
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function useColors() {
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return 'colors' in exports.inspectOpts ? Boolean(exports.inspectOpts.colors) : tty.isatty(process.stderr.fd);
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}
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/**
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* Adds ANSI color escape codes if enabled.
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*
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* @api public
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*/
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function formatArgs(args) {
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const {
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namespace: name,
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useColors
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} = this || _global;
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if (useColors) {
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const c = (this || _global).color;
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const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
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const prefix = ` ${colorCode};1m${name} \u001B[0m`;
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args[0] = prefix + args[0].split('\n').join('\n' + prefix);
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args.push(colorCode + 'm+' + exports.humanize((this || _global).diff) + '\u001B[0m');
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} else {
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args[0] = getDate() + name + ' ' + args[0];
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}
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}
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function getDate() {
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if (exports.inspectOpts.hideDate) {
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return '';
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}
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return new Date().toISOString() + ' ';
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}
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/**
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* Invokes `util.format()` with the specified arguments and writes to stderr.
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*/
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function log(...args) {
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return process.stderr.write(util.format(...args) + '\n');
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}
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/**
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* Save `namespaces`.
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*
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* @param {String} namespaces
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* @api private
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*/
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function save(namespaces) {
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if (namespaces) {
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process.env.DEBUG = namespaces;
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} else {
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// If you set a process.env field to null or undefined, it gets cast to the
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// string 'null' or 'undefined'. Just delete instead.
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delete process.env.DEBUG;
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}
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}
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/**
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* Load `namespaces`.
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*
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* @return {String} returns the previously persisted debug modes
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* @api private
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*/
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function load() {
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return process.env.DEBUG;
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}
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/**
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* Init logic for `debug` instances.
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*
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* Create a new `inspectOpts` object in case `useColors` is set
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* differently for a particular `debug` instance.
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*/
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function init(debug) {
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debug.inspectOpts = {};
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const keys = Object.keys(exports.inspectOpts);
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for (let i = 0; i < keys.length; i++) {
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debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
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}
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}
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exports = _commonDewDew()(exports);
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const {
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formatters
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} = exports;
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/**
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* Map %o to `util.inspect()`, all on a single line.
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*/
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formatters.o = function (v) {
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(this || _global).inspectOpts.colors = (this || _global).useColors;
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return util.inspect(v, (this || _global).inspectOpts).replace(/\s*\n\s*/g, ' ');
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};
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/**
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* Map %O to `util.inspect()`, allowing multiple lines if needed.
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*/
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formatters.O = function (v) {
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(this || _global).inspectOpts.colors = (this || _global).useColors;
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return util.inspect(v, (this || _global).inspectOpts);
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};
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return exports;
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}
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