76 lines
2.1 KiB
JavaScript
Executable file
76 lines
2.1 KiB
JavaScript
Executable file
const streams = require('streamroller');
|
|
const os = require('os');
|
|
|
|
const eol = os.EOL;
|
|
|
|
function openTheStream(filename, pattern, options) {
|
|
const stream = new streams.DateRollingFileStream(filename, pattern, options);
|
|
stream.on('error', (err) => {
|
|
// eslint-disable-next-line no-console
|
|
console.error(
|
|
'log4js.dateFileAppender - Writing to file %s, error happened ',
|
|
filename,
|
|
err
|
|
);
|
|
});
|
|
stream.on('drain', () => {
|
|
process.emit('log4js:pause', false);
|
|
});
|
|
return stream;
|
|
}
|
|
|
|
/**
|
|
* File appender that rolls files according to a date pattern.
|
|
* @param filename base filename.
|
|
* @param pattern the format that will be added to the end of filename when rolling,
|
|
* also used to check when to roll files - defaults to '.yyyy-MM-dd'
|
|
* @param layout layout function for log messages - defaults to basicLayout
|
|
* @param options - options to be passed to the underlying stream
|
|
* @param timezoneOffset - optional timezone offset in minutes (default system local)
|
|
*/
|
|
function appender(filename, pattern, layout, options, timezoneOffset) {
|
|
// the options for file appender use maxLogSize, but the docs say any file appender
|
|
// options should work for dateFile as well.
|
|
options.maxSize = options.maxLogSize;
|
|
|
|
const writer = openTheStream(filename, pattern, options);
|
|
|
|
const app = function (logEvent) {
|
|
if (!writer.writable) {
|
|
return;
|
|
}
|
|
if (!writer.write(layout(logEvent, timezoneOffset) + eol, 'utf8')) {
|
|
process.emit('log4js:pause', true);
|
|
}
|
|
};
|
|
|
|
app.shutdown = function (complete) {
|
|
writer.end('', 'utf-8', complete);
|
|
};
|
|
|
|
return app;
|
|
}
|
|
|
|
function configure(config, layouts) {
|
|
let layout = layouts.basicLayout;
|
|
if (config.layout) {
|
|
layout = layouts.layout(config.layout.type, config.layout);
|
|
}
|
|
|
|
if (!config.alwaysIncludePattern) {
|
|
config.alwaysIncludePattern = false;
|
|
}
|
|
|
|
// security default (instead of relying on streamroller default)
|
|
config.mode = config.mode || 0o600;
|
|
|
|
return appender(
|
|
config.filename,
|
|
config.pattern,
|
|
layout,
|
|
config,
|
|
config.timezoneOffset
|
|
);
|
|
}
|
|
|
|
module.exports.configure = configure;
|