iobroker.js-controller
Version:
Updated by reinstall.js on 2018-06-11T15:19:56.688Z
145 lines (133 loc) • 4.93 kB
JavaScript
;
// const CLI = require('./messages.js');
const CLICommand = require('./cliCommand.js');
const { getConfigFileName } = require('../tools');
const chokidar = require('chokidar');
const fs = require('fs-extra');
const os = require('os');
const es = require('event-stream');
const tools = require('../tools');
/** Command ioBroker state ... */
module.exports = class CLILogs extends CLICommand {
/** @param {import('./cliCommand').CLICommandOptions} options */
constructor(options) {
super(options);
/** @type {Map<string, number>} */
this.fileSizes = new Map();
this.isReady = false;
}
/**
* Executes a command
* @param {any[]} args
*/
execute(args, params) {
/** @type {string | undefined} */
const adapterName = args[0];
const watch = params.watch || params.w;
const count = params.lines || 1000;
/** @type {CLILogsOptions} */
const options = {
complete: this.options['all'],
adapterName
};
const config = fs.readJSONSync(require.resolve(getConfigFileName()));
const logger = require('../logger')(config.log);
let fileName = logger.getFileName();
if (fileName) {
let lines = fs.readFileSync(fileName).toString('utf-8').split('\n');
lines = lines.filter(line => line);
if (lines.length > count) {
lines.splice(0, lines.length - count);
}
let regex;
if (adapterName) {
//2019-03-02 13:26:54.698 - debug: iot.0 [ALEXA] Created ALEXA device: Bad.Hauptlicht.Aktor.STATE ["turnOn","turnOff"]
regex = new RegExp(': ' + adapterName + '\\.');
}
lines.forEach(line => {
if (regex && !regex.test(line)) {
return;
}
console.log(line);
});
if (watch) {
fileName = fileName.replace(/\\/g, '/');
const parts = fileName.split('/');
parts.pop();
chokidar.watch(`${parts.join('/')}/iobroker*`, {awaitWriteFinish: {stabilityThreshold: 500}})
.on('all', this.watchHandler.bind(this, options))
.on('ready', () => this.isReady = true)
;
}
} else {
console.log('No log file found');
}
}
/**
* @typedef CLILogsOptions
* @property {boolean} [complete] Whether to show today's full log
* @property {string} [adapterName] An optional adapter name to filter by
*/
/**
* Called by chokidar when watched files change
* @param {CLILogsOptions} options some options
* @param {string} event The type of change
* @param {*} path Which path has changed
* @param {*} stats Information about the file
*/
watchHandler(options, event, path, stats) {
if (event === 'add' || !this.fileSizes.has(path)) {
this.fileSizes.set(path, stats.size);
if (
stats.size > 0 && (
this.isReady
|| (options.complete && this.isTodaysLogfile(path))
)
) {
this.streamChange(path, 0, options);
}
} else if (event === 'change') {
const oldFileSize = this.fileSizes.get(path);
this.fileSizes.set(path, stats.size);
if (this.isReady && stats.size > oldFileSize) {
this.streamChange(path, oldFileSize, options);
}
} else if (event === 'unlink') {
this.fileSizes.delete(path);
}
}
/**
* If the log file belongs to today
* @param {string} path The log file path
*/
isTodaysLogfile(path) {
const YYYYMMDDDate = new Date().toJSON().slice(0, 10);
return path.indexOf(YYYYMMDDDate) > -1;
}
/**
* Streams a portion of a file to the console
* @param {string} path The file to stream
* @param {number} start The offset in bytes where to start
* @param {CLILogsOptions} options some options
*/
streamChange(path, start, options) {
const input = fs.createReadStream(path, {
encoding: 'utf8',
start: start,
autoClose: true
});
if (options.adapterName) {
// Read the input line by line and only include the lines matching the filter
input
.pipe(es.split())
// @ts-ignore
.pipe(es.filterSync(line => line.indexOf(options.adapterName) > -1))
.pipe(es.mapSync(line => line + os.EOL))
.pipe(process.stdout)
;
} else {
// just pipe the input through
tools.pipeLinewise(input, process.stdout);
}
}
};