Files
agent/packages/uhk-usb/src/uhk-blhost.ts
2017-12-25 21:48:41 +01:00

90 lines
2.7 KiB
TypeScript

import * as path from 'path';
import { spawn } from 'child_process';
import { LogService } from 'uhk-common';
import { retry } from './util';
export class UhkBlhost {
private blhostPath: string;
constructor(private logService: LogService,
private rootDir: string) {
}
public async runBlhostCommand(params: Array<string>): Promise<void> {
const self = this;
return new Promise<void>((resolve, reject) => {
const blhostPath = this.getBlhostPath();
self.logService.debug(`[blhost] RUN: ${blhostPath} ${params.join(' ')}`);
const childProcess = spawn(`"${blhostPath}"`, params, {shell: true});
let finished = false;
childProcess.stdout.on('data', data => {
self.logService.debug(`[blhost] STDOUT: ${data}`);
});
childProcess.stderr.on('data', data => {
self.logService.error(`[blhost] STDERR: ${data}`);
});
childProcess.on('close', code => {
self.logService.debug(`[blhost] CLOSE_CODE: ${code}`);
finish(code);
});
childProcess.on('exit', code => {
self.logService.debug(`[blhost] EXIT_CODE: ${code}`);
finish(code);
});
childProcess.on('error', err => {
self.logService.debug(`[blhost] ERROR: ${err}`);
});
function finish(code) {
if (finished) {
return;
}
finished = true;
self.logService.debug(`[blhost] FINISHED: ${code}`);
if (code !== null && code !== 0) {
return reject(new Error(`blhost error code:${code}`));
}
resolve();
}
});
}
public async runBlhostCommandRetry(params: Array<string>, maxTry = 100): Promise<void> {
return await retry(async () => await this.runBlhostCommand(params), maxTry, this.logService);
}
private getBlhostPath(): string {
if (this.blhostPath) {
return this.blhostPath;
}
let blhostPath;
switch (process.platform) {
case 'linux':
blhostPath = 'linux/x86_64/blhost';
break;
case 'darwin':
blhostPath = 'mac/blhost';
break;
case 'win32':
blhostPath = 'win/blhost.exe';
break;
default:
throw new Error(`Could not find blhost path. Unknown platform:${process.platform}`);
}
this.blhostPath = path.join(this.rootDir, `packages/blhost/${blhostPath}`);
return this.blhostPath;
}
}