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https://github.com/angular/angular
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8d3d75e454
This allows CLI usage to filter excessive log messages and integrations like webpack plugins to provide their own logger. // FW-1198 PR Close #29591
46 lines
1.2 KiB
TypeScript
46 lines
1.2 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Logger} from './logger';
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const RESET = '\x1b[0m';
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const RED = '\x1b[31m';
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const YELLOW = '\x1b[33m';
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const BLUE = '\x1b[36m';
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export const DEBUG = `${BLUE}Debug:${RESET}`;
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export const WARN = `${YELLOW}Warning:${RESET}`;
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export const ERROR = `${RED}Error:${RESET}`;
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export enum LogLevel {
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debug,
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info,
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warn,
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error,
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}
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/**
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* A simple logger that outputs directly to the Console.
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*
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* The log messages can be filtered based on severity via the `logLevel`
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* constructor parameter.
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*/
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export class ConsoleLogger implements Logger {
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constructor(private logLevel: LogLevel) {}
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debug(...args: string[]) {
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if (this.logLevel <= LogLevel.debug) console.debug(DEBUG, ...args);
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}
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info(...args: string[]) {
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if (this.logLevel <= LogLevel.info) console.info(...args);
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}
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warn(...args: string[]) {
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if (this.logLevel <= LogLevel.warn) console.warn(WARN, ...args);
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}
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error(...args: string[]) {
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if (this.logLevel <= LogLevel.error) console.error(ERROR, ...args);
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}
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}
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