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					230 lines
				
				5.9 KiB
			
		
		
			
		
	
	
					230 lines
				
				5.9 KiB
			| 
											3 years ago
										 | 'use strict'; | ||
|  | const ansiStyles = require('ansi-styles'); | ||
|  | const {stdout: stdoutColor, stderr: stderrColor} = require('supports-color'); | ||
|  | const { | ||
|  | 	stringReplaceAll, | ||
|  | 	stringEncaseCRLFWithFirstIndex | ||
|  | } = require('./util'); | ||
|  | 
 | ||
|  | const {isArray} = Array; | ||
|  | 
 | ||
|  | // `supportsColor.level` → `ansiStyles.color[name]` mapping
 | ||
|  | const levelMapping = [ | ||
|  | 	'ansi', | ||
|  | 	'ansi', | ||
|  | 	'ansi256', | ||
|  | 	'ansi16m' | ||
|  | ]; | ||
|  | 
 | ||
|  | const styles = Object.create(null); | ||
|  | 
 | ||
|  | const applyOptions = (object, options = {}) => { | ||
|  | 	if (options.level && !(Number.isInteger(options.level) && options.level >= 0 && options.level <= 3)) { | ||
|  | 		throw new Error('The `level` option should be an integer from 0 to 3'); | ||
|  | 	} | ||
|  | 
 | ||
|  | 	// Detect level if not set manually
 | ||
|  | 	const colorLevel = stdoutColor ? stdoutColor.level : 0; | ||
|  | 	object.level = options.level === undefined ? colorLevel : options.level; | ||
|  | }; | ||
|  | 
 | ||
|  | class ChalkClass { | ||
|  | 	constructor(options) { | ||
|  | 		// eslint-disable-next-line no-constructor-return
 | ||
|  | 		return chalkFactory(options); | ||
|  | 	} | ||
|  | } | ||
|  | 
 | ||
|  | const chalkFactory = options => { | ||
|  | 	const chalk = {}; | ||
|  | 	applyOptions(chalk, options); | ||
|  | 
 | ||
|  | 	chalk.template = (...arguments_) => chalkTag(chalk.template, ...arguments_); | ||
|  | 
 | ||
|  | 	Object.setPrototypeOf(chalk, Chalk.prototype); | ||
|  | 	Object.setPrototypeOf(chalk.template, chalk); | ||
|  | 
 | ||
|  | 	chalk.template.constructor = () => { | ||
|  | 		throw new Error('`chalk.constructor()` is deprecated. Use `new chalk.Instance()` instead.'); | ||
|  | 	}; | ||
|  | 
 | ||
|  | 	chalk.template.Instance = ChalkClass; | ||
|  | 
 | ||
|  | 	return chalk.template; | ||
|  | }; | ||
|  | 
 | ||
|  | function Chalk(options) { | ||
|  | 	return chalkFactory(options); | ||
|  | } | ||
|  | 
 | ||
|  | for (const [styleName, style] of Object.entries(ansiStyles)) { | ||
|  | 	styles[styleName] = { | ||
|  | 		get() { | ||
|  | 			const builder = createBuilder(this, createStyler(style.open, style.close, this._styler), this._isEmpty); | ||
|  | 			Object.defineProperty(this, styleName, {value: builder}); | ||
|  | 			return builder; | ||
|  | 		} | ||
|  | 	}; | ||
|  | } | ||
|  | 
 | ||
|  | styles.visible = { | ||
|  | 	get() { | ||
|  | 		const builder = createBuilder(this, this._styler, true); | ||
|  | 		Object.defineProperty(this, 'visible', {value: builder}); | ||
|  | 		return builder; | ||
|  | 	} | ||
|  | }; | ||
|  | 
 | ||
|  | const usedModels = ['rgb', 'hex', 'keyword', 'hsl', 'hsv', 'hwb', 'ansi', 'ansi256']; | ||
|  | 
 | ||
|  | for (const model of usedModels) { | ||
|  | 	styles[model] = { | ||
|  | 		get() { | ||
|  | 			const {level} = this; | ||
|  | 			return function (...arguments_) { | ||
|  | 				const styler = createStyler(ansiStyles.color[levelMapping[level]][model](...arguments_), ansiStyles.color.close, this._styler); | ||
|  | 				return createBuilder(this, styler, this._isEmpty); | ||
|  | 			}; | ||
|  | 		} | ||
|  | 	}; | ||
|  | } | ||
|  | 
 | ||
|  | for (const model of usedModels) { | ||
|  | 	const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1); | ||
|  | 	styles[bgModel] = { | ||
|  | 		get() { | ||
|  | 			const {level} = this; | ||
|  | 			return function (...arguments_) { | ||
|  | 				const styler = createStyler(ansiStyles.bgColor[levelMapping[level]][model](...arguments_), ansiStyles.bgColor.close, this._styler); | ||
|  | 				return createBuilder(this, styler, this._isEmpty); | ||
|  | 			}; | ||
|  | 		} | ||
|  | 	}; | ||
|  | } | ||
|  | 
 | ||
|  | const proto = Object.defineProperties(() => {}, { | ||
|  | 	...styles, | ||
|  | 	level: { | ||
|  | 		enumerable: true, | ||
|  | 		get() { | ||
|  | 			return this._generator.level; | ||
|  | 		}, | ||
|  | 		set(level) { | ||
|  | 			this._generator.level = level; | ||
|  | 		} | ||
|  | 	} | ||
|  | }); | ||
|  | 
 | ||
|  | const createStyler = (open, close, parent) => { | ||
|  | 	let openAll; | ||
|  | 	let closeAll; | ||
|  | 	if (parent === undefined) { | ||
|  | 		openAll = open; | ||
|  | 		closeAll = close; | ||
|  | 	} else { | ||
|  | 		openAll = parent.openAll + open; | ||
|  | 		closeAll = close + parent.closeAll; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	return { | ||
|  | 		open, | ||
|  | 		close, | ||
|  | 		openAll, | ||
|  | 		closeAll, | ||
|  | 		parent | ||
|  | 	}; | ||
|  | }; | ||
|  | 
 | ||
|  | const createBuilder = (self, _styler, _isEmpty) => { | ||
|  | 	const builder = (...arguments_) => { | ||
|  | 		if (isArray(arguments_[0]) && isArray(arguments_[0].raw)) { | ||
|  | 			// Called as a template literal, for example: chalk.red`2 + 3 = {bold ${2+3}}`
 | ||
|  | 			return applyStyle(builder, chalkTag(builder, ...arguments_)); | ||
|  | 		} | ||
|  | 
 | ||
|  | 		// Single argument is hot path, implicit coercion is faster than anything
 | ||
|  | 		// eslint-disable-next-line no-implicit-coercion
 | ||
|  | 		return applyStyle(builder, (arguments_.length === 1) ? ('' + arguments_[0]) : arguments_.join(' ')); | ||
|  | 	}; | ||
|  | 
 | ||
|  | 	// We alter the prototype because we must return a function, but there is
 | ||
|  | 	// no way to create a function with a different prototype
 | ||
|  | 	Object.setPrototypeOf(builder, proto); | ||
|  | 
 | ||
|  | 	builder._generator = self; | ||
|  | 	builder._styler = _styler; | ||
|  | 	builder._isEmpty = _isEmpty; | ||
|  | 
 | ||
|  | 	return builder; | ||
|  | }; | ||
|  | 
 | ||
|  | const applyStyle = (self, string) => { | ||
|  | 	if (self.level <= 0 || !string) { | ||
|  | 		return self._isEmpty ? '' : string; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	let styler = self._styler; | ||
|  | 
 | ||
|  | 	if (styler === undefined) { | ||
|  | 		return string; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	const {openAll, closeAll} = styler; | ||
|  | 	if (string.indexOf('\u001B') !== -1) { | ||
|  | 		while (styler !== undefined) { | ||
|  | 			// 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'.
 | ||
|  | 			string = stringReplaceAll(string, styler.close, styler.open); | ||
|  | 
 | ||
|  | 			styler = styler.parent; | ||
|  | 		} | ||
|  | 	} | ||
|  | 
 | ||
|  | 	// We can move both next actions out of loop, because remaining actions in loop won't have
 | ||
|  | 	// any/visible effect on parts we add here. 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
 | ||
|  | 	const lfIndex = string.indexOf('\n'); | ||
|  | 	if (lfIndex !== -1) { | ||
|  | 		string = stringEncaseCRLFWithFirstIndex(string, closeAll, openAll, lfIndex); | ||
|  | 	} | ||
|  | 
 | ||
|  | 	return openAll + string + closeAll; | ||
|  | }; | ||
|  | 
 | ||
|  | let template; | ||
|  | const chalkTag = (chalk, ...strings) => { | ||
|  | 	const [firstString] = strings; | ||
|  | 
 | ||
|  | 	if (!isArray(firstString) || !isArray(firstString.raw)) { | ||
|  | 		// If chalk() was called by itself or with a string,
 | ||
|  | 		// return the string itself as a string.
 | ||
|  | 		return strings.join(' '); | ||
|  | 	} | ||
|  | 
 | ||
|  | 	const arguments_ = strings.slice(1); | ||
|  | 	const parts = [firstString.raw[0]]; | ||
|  | 
 | ||
|  | 	for (let i = 1; i < firstString.length; i++) { | ||
|  | 		parts.push( | ||
|  | 			String(arguments_[i - 1]).replace(/[{}\\]/g, '\\$&'), | ||
|  | 			String(firstString.raw[i]) | ||
|  | 		); | ||
|  | 	} | ||
|  | 
 | ||
|  | 	if (template === undefined) { | ||
|  | 		template = require('./templates'); | ||
|  | 	} | ||
|  | 
 | ||
|  | 	return template(chalk, parts.join('')); | ||
|  | }; | ||
|  | 
 | ||
|  | Object.defineProperties(Chalk.prototype, styles); | ||
|  | 
 | ||
|  | const chalk = Chalk(); // eslint-disable-line new-cap
 | ||
|  | chalk.supportsColor = stdoutColor; | ||
|  | chalk.stderr = Chalk({level: stderrColor ? stderrColor.level : 0}); // eslint-disable-line new-cap
 | ||
|  | chalk.stderr.supportsColor = stderrColor; | ||
|  | 
 | ||
|  | module.exports = chalk; |