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feat: write logs to a user directory
Write the log file to a user-specific directory, depending on the OS: - `~/Library/Logs/DAISY Ace/ace.log` on macOS - `~\AppData\Local\DAISY Ace\Log\ace.log` on Windows - `~/.local/state/DAISY Ace/ace.log` on Linux Also augment Winston with a `logAndExit` method to propertly flush the logs to files before exitting (see winstonjs/winston#228). In the CLI, move the main processing to an `async` function and wait for a timeout when logging and exitting. Closes #50.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,29 +1,73 @@ | ||
| 'use strict'; | ||
|
|
||
| const winston = require('winston'); | ||
| const envPaths = require('env-paths'); | ||
| const fs = require('fs-extra'); | ||
| const LOGFILE = __dirname + "/../ace.log"; | ||
| const path = require('path'); | ||
| const winston = require('winston'); | ||
|
|
||
| module.exports = { | ||
| initLogger: function(options) { | ||
| // clear old log file | ||
| fs.removeSync(LOGFILE); | ||
| const acePaths = envPaths('DAISY Ace', { suffix: null }); | ||
|
|
||
| // set up logger | ||
| var level = 'info'; | ||
| if (options.verbose) { | ||
| level = 'verbose'; | ||
| } | ||
| winston.configure({ | ||
| level: level, | ||
| transports: [ | ||
| new (winston.transports.File)({name: "file", filename: LOGFILE}), | ||
| new (winston.transports.Console)({name: "console"}) | ||
| ] | ||
| module.exports.initLogger = function initLogger(options = {}) { | ||
| // Check logging directoy exists | ||
| if (!fs.existsSync(acePaths.log)) { | ||
| fs.mkdirSync(acePaths.log); | ||
| } | ||
|
|
||
| // OS-dependant path to log file | ||
| const logfile = path.join(acePaths.log, 'ace.log'); | ||
|
|
||
| // clear old log file | ||
| if (fs.existsSync(logfile)) { | ||
| fs.removeSync(logfile); | ||
| } | ||
|
|
||
| // set up logger | ||
| const level = (options.verbose) ? 'verbose' : 'info'; | ||
| winston.configure({ | ||
| level, | ||
| transports: [ | ||
| new winston.transports.File({ name: 'file', filename: logfile }), | ||
| new winston.transports.Console({ name: 'console' }), | ||
| ], | ||
| }); | ||
| if (options.silent) { | ||
| winston.remove('console'); | ||
| } | ||
| winston.cli(); | ||
| }; | ||
|
|
||
| /* eslint-disable no-underscore-dangle */ | ||
| // Properly wait that loggers write to file before exitting | ||
| // See https://github.com/winstonjs/winston/issues/228 | ||
| winston.logAndExit = function logAndExit(level, msg, codeOrCallback) { | ||
| const self = this; | ||
| this.log(level, msg, () => { | ||
| let numFlushes = 0; | ||
| let numFlushed = 0; | ||
| Object.keys(self.default.transports).forEach((k) => { | ||
| if (self.default.transports[k]._stream) { | ||
| numFlushes += 1; | ||
| self.default.transports[k]._stream.once('finish', () => { | ||
| numFlushed += 1; | ||
| if (numFlushes === numFlushed) { | ||
| if (typeof codeOrCallback === 'function') { | ||
| codeOrCallback(); | ||
| } else { | ||
| process.exit(codeOrCallback); | ||
| } | ||
| } | ||
| }); | ||
| self.default.transports[k]._stream.end(); | ||
| } | ||
| }); | ||
| if (options.silent) { | ||
| winston.remove("console"); | ||
| if (numFlushes === 0) { | ||
| if (typeof codeOrCallback === 'function') { | ||
| codeOrCallback(); | ||
| } else { | ||
| process.exit(codeOrCallback); | ||
| } | ||
| } | ||
| winston.cli(); | ||
| } | ||
| } | ||
| }); | ||
| }; | ||
| /* eslint-enable no-underscore-dangle */ | ||
|
|
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