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45 lines
1.2 KiB
TypeScript
45 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 { filter } from 'rxjs/operators';
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import { logging, terminal } from '../src';
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/**
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* A Logger that sends information to STDOUT and STDERR.
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*/
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export function createConsoleLogger(verbose = false): logging.Logger {
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const logger = new logging.IndentLogger('cling');
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logger
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.pipe(filter(entry => (entry.level != 'debug' || verbose)))
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.subscribe(entry => {
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let color: (s: string) => string = x => terminal.dim(terminal.white(x));
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let output = process.stdout;
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switch (entry.level) {
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case 'info':
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color = terminal.white;
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break;
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case 'warn':
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color = terminal.yellow;
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break;
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case 'error':
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color = terminal.red;
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output = process.stderr;
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break;
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case 'fatal':
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color = (x: string) => terminal.bold(terminal.red(x));
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output = process.stderr;
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break;
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}
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output.write(color(entry.message) + '\n');
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});
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return logger;
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}
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