'use strict';
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var hasFlag = require('has-flag');
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var support = function (level) {
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if (level === 0) {
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return false;
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}
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return {
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level: level,
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hasBasic: true,
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has256: level >= 2,
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has16m: level >= 3
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};
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};
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var supportLevel = (function () {
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if (hasFlag('no-color') ||
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hasFlag('no-colors') ||
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hasFlag('color=false')) {
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return 0;
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}
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if (hasFlag('color=16m') ||
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hasFlag('color=full') ||
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hasFlag('color=truecolor')) {
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return 3;
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}
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if (hasFlag('color=256')) {
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return 2;
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}
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if (hasFlag('color') ||
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hasFlag('colors') ||
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hasFlag('color=true') ||
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hasFlag('color=always')) {
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return 1;
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}
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if (process.stdout && !process.stdout.isTTY) {
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return 0;
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}
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if (process.platform === 'win32') {
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return 1;
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}
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if ('CI' in process.env) {
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if ('TRAVIS' in process.env || process.env.CI === 'Travis') {
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return 1;
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}
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return 0;
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}
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if ('TEAMCITY_VERSION' in process.env) {
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return process.env.TEAMCITY_VERSION.match(/^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/) === null ? 0 : 1;
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}
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if (/^(screen|xterm)-256(?:color)?/.test(process.env.TERM)) {
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return 2;
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}
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if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
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return 1;
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}
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if ('COLORTERM' in process.env) {
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return 1;
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}
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if (process.env.TERM === 'dumb') {
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return 0;
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}
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return 0;
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})();
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if (supportLevel === 0 && 'FORCE_COLOR' in process.env) {
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supportLevel = 1;
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}
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module.exports = process && support(supportLevel);
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