Module for consuming the Systemd Journal
npm install @seydx/journalctlThis is a module for accessing the all mighty Systemd Journal and its handy dandy key-value store hidden behind every log line. In the background it spawns a journalctl process with the output format ``json` and parses the serialised object stream.
Require the module and create a new instance:
`js`
const Journalctl = require('@seydx/journalctl');
const journalctl = new Journalctl([opts]);
The optional object `opts` can have the following properties:`
* identifier`: Just output logs of the given syslog identifier (or identifier if defined as array) (cf. man journalctl, option '-t')`
* unit`: Just output logs originated from the given unit file (or files if defined as array) (cf. man journalctl, option '-u')`
* filter`: An array/string of matches to filter by (cf. man journalctl, matches)`
js
const Journalctl = require('journalctl');
let opts = {
identifier: ['systemd', 'homebridge'],
unit: ['homebridge-instances-platform', 'homebridge'],
filter: ['Stopped Node.js HomeKit Server', 'Started Node.js HomeKit Server']
}
const journalctl = new Journalctl(opts);
journalctl.on('event', (event) => {
console.log(event)
});
`
`js`
journalctl.on('event', (event) => {});
Is fired on every log event and hands over the object `event` describing the event. (Oh boy ... so many events in one sentence ...)
`js`
journalctl.stop([callback]);
Stops journalctl and calls the optional `callback`` once everything has been killed.
This project is forked from @jue89. Only a few improvements have been added so that the module can work with my Homebridge plugin (homebridge-instances-platform)