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- 'use strict';
- const escapeStringRegexp = require('escape-string-regexp');
- const ansiStyles = require('ansi-styles');
- const stdoutColor = require('supports-color').stdout;
-
- const template = require('./templates.js');
-
- const isSimpleWindowsTerm = process.platform === 'win32' && !(process.env.TERM || '').toLowerCase().startsWith('xterm');
-
- // `supportsColor.level` → `ansiStyles.color[name]` mapping
- const levelMapping = ['ansi', 'ansi', 'ansi256', 'ansi16m'];
-
- // `color-convert` models to exclude from the Chalk API due to conflicts and such
- const skipModels = new Set(['gray']);
-
- const styles = Object.create(null);
-
- function applyOptions(obj, options) {
- options = options || {};
-
- // Detect level if not set manually
- const scLevel = stdoutColor ? stdoutColor.level : 0;
- obj.level = options.level === undefined ? scLevel : options.level;
- obj.enabled = 'enabled' in options ? options.enabled : obj.level > 0;
- }
-
- function Chalk(options) {
- // We check for this.template here since calling `chalk.constructor()`
- // by itself will have a `this` of a previously constructed chalk object
- if (!this || !(this instanceof Chalk) || this.template) {
- const chalk = {};
- applyOptions(chalk, options);
-
- chalk.template = function () {
- const args = [].slice.call(arguments);
- return chalkTag.apply(null, [chalk.template].concat(args));
- };
-
- Object.setPrototypeOf(chalk, Chalk.prototype);
- Object.setPrototypeOf(chalk.template, chalk);
-
- chalk.template.constructor = Chalk;
-
- return chalk.template;
- }
-
- applyOptions(this, options);
- }
-
- // Use bright blue on Windows as the normal blue color is illegible
- if (isSimpleWindowsTerm) {
- ansiStyles.blue.open = '\u001B[94m';
- }
-
- for (const key of Object.keys(ansiStyles)) {
- ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
-
- styles[key] = {
- get() {
- const codes = ansiStyles[key];
- return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, key);
- }
- };
- }
-
- styles.visible = {
- get() {
- return build.call(this, this._styles || [], true, 'visible');
- }
- };
-
- ansiStyles.color.closeRe = new RegExp(escapeStringRegexp(ansiStyles.color.close), 'g');
- for (const model of Object.keys(ansiStyles.color.ansi)) {
- if (skipModels.has(model)) {
- continue;
- }
-
- styles[model] = {
- get() {
- const level = this.level;
- return function () {
- const open = ansiStyles.color[levelMapping[level]][model].apply(null, arguments);
- const codes = {
- open,
- close: ansiStyles.color.close,
- closeRe: ansiStyles.color.closeRe
- };
- return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
- };
- }
- };
- }
-
- ansiStyles.bgColor.closeRe = new RegExp(escapeStringRegexp(ansiStyles.bgColor.close), 'g');
- for (const model of Object.keys(ansiStyles.bgColor.ansi)) {
- if (skipModels.has(model)) {
- continue;
- }
-
- const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
- styles[bgModel] = {
- get() {
- const level = this.level;
- return function () {
- const open = ansiStyles.bgColor[levelMapping[level]][model].apply(null, arguments);
- const codes = {
- open,
- close: ansiStyles.bgColor.close,
- closeRe: ansiStyles.bgColor.closeRe
- };
- return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
- };
- }
- };
- }
-
- const proto = Object.defineProperties(() => {}, styles);
-
- function build(_styles, _empty, key) {
- const builder = function () {
- return applyStyle.apply(builder, arguments);
- };
-
- builder._styles = _styles;
- builder._empty = _empty;
-
- const self = this;
-
- Object.defineProperty(builder, 'level', {
- enumerable: true,
- get() {
- return self.level;
- },
- set(level) {
- self.level = level;
- }
- });
-
- Object.defineProperty(builder, 'enabled', {
- enumerable: true,
- get() {
- return self.enabled;
- },
- set(enabled) {
- self.enabled = enabled;
- }
- });
-
- // See below for fix regarding invisible grey/dim combination on Windows
- builder.hasGrey = this.hasGrey || key === 'gray' || key === 'grey';
-
- // `__proto__` is used because we must return a function, but there is
- // no way to create a function with a different prototype
- builder.__proto__ = proto; // eslint-disable-line no-proto
-
- return builder;
- }
-
- function applyStyle() {
- // Support varags, but simply cast to string in case there's only one arg
- const args = arguments;
- const argsLen = args.length;
- let str = String(arguments[0]);
-
- if (argsLen === 0) {
- return '';
- }
-
- if (argsLen > 1) {
- // Don't slice `arguments`, it prevents V8 optimizations
- for (let a = 1; a < argsLen; a++) {
- str += ' ' + args[a];
- }
- }
-
- if (!this.enabled || this.level <= 0 || !str) {
- return this._empty ? '' : str;
- }
-
- // Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
- // see https://github.com/chalk/chalk/issues/58
- // If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
- const originalDim = ansiStyles.dim.open;
- if (isSimpleWindowsTerm && this.hasGrey) {
- ansiStyles.dim.open = '';
- }
-
- for (const code of this._styles.slice().reverse()) {
- // Replace any instances already present with a re-opening code
- // otherwise only the part of the string until said closing code
- // will be colored, and the rest will simply be 'plain'.
- str = code.open + str.replace(code.closeRe, code.open) + code.close;
-
- // Close the styling before a linebreak and reopen
- // after next line to fix a bleed issue on macOS
- // https://github.com/chalk/chalk/pull/92
- str = str.replace(/\r?\n/g, `${code.close}$&${code.open}`);
- }
-
- // Reset the original `dim` if we changed it to work around the Windows dimmed gray issue
- ansiStyles.dim.open = originalDim;
-
- return str;
- }
-
- function chalkTag(chalk, strings) {
- if (!Array.isArray(strings)) {
- // If chalk() was called by itself or with a string,
- // return the string itself as a string.
- return [].slice.call(arguments, 1).join(' ');
- }
-
- const args = [].slice.call(arguments, 2);
- const parts = [strings.raw[0]];
-
- for (let i = 1; i < strings.length; i++) {
- parts.push(String(args[i - 1]).replace(/[{}\\]/g, '\\$&'));
- parts.push(String(strings.raw[i]));
- }
-
- return template(chalk, parts.join(''));
- }
-
- Object.defineProperties(Chalk.prototype, styles);
-
- module.exports = Chalk(); // eslint-disable-line new-cap
- module.exports.supportsColor = stdoutColor;
- module.exports.default = module.exports; // For TypeScript
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