mirror of
https://github.com/WeBankFinTech/fes.js.git
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87 lines
2.3 KiB
JavaScript
87 lines
2.3 KiB
JavaScript
/**
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* @copy 该文件代码大部分出自 umi，有需要请参考：
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* https://github.com/umijs/umi/tree/master/packages/core
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*/
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import { createDebug, chalk } from '@fesjs/utils';
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import readline from 'readline';
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export default class Logger {
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LOG = chalk.black.bgBlue('LOG');
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INFO = chalk.black.bgBlue('INFO');
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WARN = chalk.black.bgHex('#faad14')('WARN');
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ERROR = chalk.black.bgRed('ERROR');
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PROFILE = chalk.black.bgCyan('PROFILE');
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constructor(namespace) {
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// TODO: get namespace filename accounding caller function
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if (!namespace) {
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throw new Error('logger needs namespace');
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}
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this.namespace = namespace;
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this.profilers = {};
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this.debug = createDebug(this.namespace);
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}
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log(...args) {
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// TODO: node env production
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console.log(this.LOG, ...args);
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}
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/**
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* The {@link logger.info} function is an alias for {@link logger.log()}.
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* @param args
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*/
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info(...args) {
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console.log(this.INFO, ...args);
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}
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error(...args) {
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console.error(this.ERROR, ...args);
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}
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warn(...args) {
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console.warn(this.WARN, ...args);
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}
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formatTiming(timing) {
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return timing < 60 * 1000 ? `${Math.round(timing / 10) / 100}s` : `${Math.round(timing / 600) / 100}m`;
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}
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profile(id, message) {
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const time = Date.now();
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const namespace = `${this.namespace}:${id}`;
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// for test
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let msg;
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if (this.profilers[id]) {
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const timeEnd = this.profilers[id];
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delete this.profilers[id];
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process.stderr.write(`${this.PROFILE} `);
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msg = `${this.PROFILE} ${chalk.cyan(`└ ${namespace}`)} Completed in ${this.formatTiming(time - timeEnd)}`;
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console.log(msg);
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} else {
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msg = `${this.PROFILE} ${chalk.cyan(`┌ ${namespace}`)} ${message || ''}`;
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console.log(msg);
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}
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this.profilers[id] = time;
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return msg;
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}
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clearConsole(title) {
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if (process.stdout.isTTY) {
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const blank = '\n'.repeat(process.stdout.rows);
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console.log(blank);
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readline.cursorTo(process.stdout, 0, 0);
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readline.clearScreenDown(process.stdout);
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if (title) {
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console.log(title);
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}
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}
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}
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}
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