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Diffstat (limited to 'node_modules/chalk/index.js')
-rw-r--r-- | node_modules/chalk/index.js | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/node_modules/chalk/index.js b/node_modules/chalk/index.js new file mode 100644 index 0000000..1cc5fa8 --- /dev/null +++ b/node_modules/chalk/index.js @@ -0,0 +1,228 @@ +'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 |