8cc35d74ef
Summary: The logs written to the file shouldn't be JSON. It just makes it hard to read and there's no tool to process this either. Instead, write the logs as seeing in the console for easier reading. Reviewed By: antonk52 Differential Revision: D50219806 fbshipit-source-id: a07fb53a10b36e1a3c2992a133b8c0c818bd816b
68 lines
1.8 KiB
TypeScript
68 lines
1.8 KiB
TypeScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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*/
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import path from 'path';
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import {
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addLogTailer,
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EnvironmentInfo,
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LoggerExtractError,
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LoggerFormat,
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LoggerTypes,
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setLoggerInstance,
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} from 'flipper-common';
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// @ts-expect-error
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import fsRotator from 'file-stream-rotator';
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import {ensureFile} from 'fs-extra';
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import {access} from 'fs/promises';
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import {constants} from 'fs';
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import {initializeLogger as initLogger} from 'flipper-server-core';
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export const loggerOutputFile = 'flipper-server-log.out';
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export async function initializeLogger(
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environmentInfo: EnvironmentInfo,
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staticDir: string,
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) {
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// Suppress stdout debug messages, but keep writing them to the file.
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console.debug = function () {};
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const logger = initLogger(environmentInfo);
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setLoggerInstance(logger);
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const logFilename = path.join(staticDir, loggerOutputFile);
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let logStream: NodeJS.WriteStream | undefined = undefined;
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try {
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await ensureFile(logFilename);
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await access(logFilename, constants.W_OK);
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logStream = fsRotator.getStream({
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// Rotation number is going to be added after the file name
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filename: logFilename,
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// Rotate every 1MB
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size: '1m',
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// Keep last 5 rotations
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max_logs: 20,
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});
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} catch (e) {
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console.warn('initializeLogger -> cannot write logs to FS', e);
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}
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addLogTailer((level: LoggerTypes, ...data: Array<any>) => {
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const logInfo = LoggerFormat(level, ...data);
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logStream?.write(`[${logInfo.time}][${logInfo.type}] ${logInfo.msg}\n`);
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if (level === 'error') {
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const {
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error: {stack, name},
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} = LoggerExtractError(data);
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logStream?.write(`${name}: \n${stack}\n`);
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}
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});
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}
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