madiator.com/electron/LbryFirstInstance.js

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2021-08-16 12:11:25 +02:00
import path from 'path';
import { spawn, execSync } from 'child_process';
export default class LbryFirstInstance {
static lbryFirstPath =
process.env.LBRY_FIRST_DAEMON ||
(process.env.NODE_ENV === 'production'
? path.join(process.resourcesPath, 'static/lbry-first', 'lbry-first')
: path.join(__static, 'lbry-first/lbry-first'));
static headersPath =
process.env.LBRY_FIRST_DAEMON ||
(process.env.NODE_ENV === 'production'
? path.join(process.resourcesPath, 'static/lbry-first', 'headers')
: path.join(__static, 'lbry-first/headers'));
subprocess;
handlers;
constructor() {
this.handlers = [];
}
launch() {
let flags = ['serve'];
console.log(`LbryFirst: ${LbryFirstInstance.lbryFirstPath}`);
this.subprocess = spawn(LbryFirstInstance.lbryFirstPath, flags);
this.subprocess.stdout.on('data', data => console.log(`LbryFirst: ${data}`));
this.subprocess.stderr.on('data', data => console.error(`LbryFirst: ${data}`));
this.subprocess.on('exit', () => this.fire('exit'));
this.subprocess.on('error', error => console.error(`LbryFirst error: ${error}`));
}
quit() {
if (process.platform === 'win32') {
try {
execSync(`taskkill /pid ${this.subprocess.pid} /t /f`);
} catch (error) {
console.error(error.message);
}
} else {
this.subprocess.kill();
}
}
// Follows the publish/subscribe pattern
// Subscribe method
on(event, handler, context = handler) {
this.handlers.push({ event, handler: handler.bind(context) });
}
// Publish method
fire(event, args) {
this.handlers.forEach(topic => {
if (topic.event === event) topic.handler(args);
});
}
}