You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

107 lines
3.2 KiB
JavaScript

8 months ago
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.linuxList = void 0;
const child_process_1 = require("child_process");
const parser_readline_1 = require("@serialport/parser-readline");
// get only serial port names
function checkPathOfDevice(path) {
return /(tty(S|WCH|ACM|USB|AMA|MFD|O|XRUSB)|rfcomm)/.test(path) && path;
}
function propName(name) {
return {
DEVNAME: 'path',
ID_VENDOR_ENC: 'manufacturer',
ID_SERIAL_SHORT: 'serialNumber',
ID_VENDOR_ID: 'vendorId',
ID_MODEL_ID: 'productId',
DEVLINKS: 'pnpId',
}[name.toUpperCase()];
}
function decodeHexEscape(str) {
return str.replace(/\\x([a-fA-F0-9]{2})/g, (a, b) => {
return String.fromCharCode(parseInt(b, 16));
});
}
function propVal(name, val) {
if (name === 'pnpId') {
const match = val.match(/\/by-id\/([^\s]+)/);
return (match === null || match === void 0 ? void 0 : match[1]) || undefined;
}
if (name === 'manufacturer') {
return decodeHexEscape(val);
}
if (/^0x/.test(val)) {
return val.substr(2);
}
return val;
}
function linuxList(spawnCmd = child_process_1.spawn) {
const ports = [];
const udevadm = spawnCmd('udevadm', ['info', '-e']);
const lines = udevadm.stdout.pipe(new parser_readline_1.ReadlineParser());
let skipPort = false;
let port = {
path: '',
manufacturer: undefined,
serialNumber: undefined,
pnpId: undefined,
locationId: undefined,
vendorId: undefined,
productId: undefined,
};
lines.on('data', (line) => {
const lineType = line.slice(0, 1);
const data = line.slice(3);
// new port entry
if (lineType === 'P') {
port = {
path: '',
manufacturer: undefined,
serialNumber: undefined,
pnpId: undefined,
locationId: undefined,
vendorId: undefined,
productId: undefined,
};
skipPort = false;
return;
}
if (skipPort) {
return;
}
// Check dev name and save port if it matches flag to skip the rest of the data if not
if (lineType === 'N') {
if (checkPathOfDevice(data)) {
ports.push(port);
}
else {
skipPort = true;
}
return;
}
// parse data about each port
if (lineType === 'E') {
const keyValue = data.match(/^(.+)=(.*)/);
if (!keyValue) {
return;
}
const key = propName(keyValue[1]);
if (!key) {
return;
}
port[key] = propVal(key, keyValue[2]);
}
});
return new Promise((resolve, reject) => {
udevadm.on('close', (code) => {
if (code) {
reject(new Error(`Error listing ports udevadm exited with error code: ${code}`));
}
});
udevadm.on('error', reject);
lines.on('error', reject);
lines.on('finish', () => resolve(ports));
});
}
exports.linuxList = linuxList;