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index.js
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index.js
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'use strict';
var Console = require('console').Console;
var gray = require('ansi-gray');
var timestamp = require('time-stamp');
var supportsColor = require('color-support');
var nodeVersion = require('parse-node-version')(process.version);
var colorDetectionOptions = {
// If on Windows, ignore the isTTY check
// This is due to AppVeyor (and thus probably common Windows platforms?) failing the check
// TODO: If this is too broad, we can reduce it to an APPVEYOR env check
ignoreTTY: (process.platform === 'win32'),
};
// Needed to add this because node 10 decided to start coloring log output randomly
var console;
if (nodeVersion.major >= 10) {
// Node 10 also changed the way this is constructed
console = new Console({
stdout: process.stdout,
stderr: process.stderr,
colorMode: false,
});
} else {
console = new Console(process.stdout, process.stderr);
}
function hasFlag(flag) {
return (process.argv.indexOf('--' + flag) !== -1);
}
function addColor(str) {
if (hasFlag('no-color')) {
return str;
}
if (hasFlag('color')) {
return gray(str);
}
if (supportsColor(colorDetectionOptions)) {
return gray(str);
}
return str;
}
function getTimestamp() {
return '[' + addColor(timestamp('HH:mm:ss')) + ']';
}
function log() {
var time = getTimestamp();
process.stdout.write(time + ' ');
console.log.apply(console, arguments);
return this;
}
function info() {
var time = getTimestamp();
process.stdout.write(time + ' ');
console.info.apply(console, arguments);
return this;
}
function dir() {
var time = getTimestamp();
process.stdout.write(time + ' ');
console.dir.apply(console, arguments);
return this;
}
function warn() {
var time = getTimestamp();
process.stderr.write(time + ' ');
console.warn.apply(console, arguments);
return this;
}
function error() {
var time = getTimestamp();
process.stderr.write(time + ' ');
console.error.apply(console, arguments);
return this;
}
module.exports = log;
module.exports.info = info;
module.exports.dir = dir;
module.exports.warn = warn;
module.exports.error = error;