/usr/lib/nodejs/chalk/index.js is in node-chalk 1.1.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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var escapeStringRegexp = require('escape-string-regexp');
var ansiStyles = require('ansi-styles');
var stripAnsi = require('strip-ansi');
var hasAnsi = require('has-ansi');
var supportsColor = require('supports-color');
var defineProps = Object.defineProperties;
var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);
function Chalk(options) {
// detect mode if not set manually
this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled;
}
// use bright blue on Windows as the normal blue color is illegible
if (isSimpleWindowsTerm) {
ansiStyles.blue.open = '\u001b[94m';
}
var styles = (function () {
var ret = {};
Object.keys(ansiStyles).forEach(function (key) {
ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
ret[key] = {
get: function () {
return build.call(this, this._styles.concat(key));
}
};
});
return ret;
})();
var proto = defineProps(function chalk() {}, styles);
function build(_styles) {
var builder = function () {
return applyStyle.apply(builder, arguments);
};
builder._styles = _styles;
builder.enabled = this.enabled;
// __proto__ is used because we must return a function, but there is
// no way to create a function with a different prototype.
/* eslint-disable no-proto */
builder.__proto__ = proto;
return builder;
}
function applyStyle() {
// support varags, but simply cast to string in case there's only one arg
var args = arguments;
var argsLen = args.length;
var str = argsLen !== 0 && String(arguments[0]);
if (argsLen > 1) {
// don't slice `arguments`, it prevents v8 optimizations
for (var a = 1; a < argsLen; a++) {
str += ' ' + args[a];
}
}
if (!this.enabled || !str) {
return str;
}
var nestedStyles = this._styles;
var i = nestedStyles.length;
// 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.
var originalDim = ansiStyles.dim.open;
if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
ansiStyles.dim.open = '';
}
while (i--) {
var code = ansiStyles[nestedStyles[i]];
// 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;
}
// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
ansiStyles.dim.open = originalDim;
return str;
}
function init() {
var ret = {};
Object.keys(styles).forEach(function (name) {
ret[name] = {
get: function () {
return build.call(this, [name]);
}
};
});
return ret;
}
defineProps(Chalk.prototype, init());
module.exports = new Chalk();
module.exports.styles = ansiStyles;
module.exports.hasColor = hasAnsi;
module.exports.stripColor = stripAnsi;
module.exports.supportsColor = supportsColor;
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