cross-port-killer/source/port-killer.js

Kill the process running on a given TCP port on Windows, Linux and Mac

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Killer = void 0;
var child_process_1 = require("child_process");
var Killer = /** @class */ (function () {
    function Killer(platform) {
        this.platforms = {
            win32: { command: 'Taskkill', args: ['/F', '/PID'] },
            linux: { command: 'kill', args: ['-9'] },
            darwin: { command: 'kill', args: ['-9'] },
        };
        this.platform = platform;
    }
    Killer.prototype.kill = function (port) {
        return this[this.platform](port);
    };
    Killer.prototype.killByPid = function (pid) {
        return this.killByPids([pid]);
    };
    Killer.prototype.killByPids = function (pids) {
        var _a = this.platforms[process.platform], command = _a.command, args = _a.args;
        var result = pids.filter(function (pid) {
            return (0, child_process_1.spawnSync)(command, args.concat(pid)).status === 0;
        });
        return Promise.resolve(result);
    };
    Killer.prototype.darwin = function (port) {
        return this.linux(port);
    };
    Killer.prototype.linux = function (port) {
        var _this = this;
        var resolver;
        var promise = new Promise(function (resolve) { return (resolver = resolve); });
        var lsof = (0, child_process_1.spawn)('lsof', ['-s', 'TCP:LISTEN', '-i', ':' + port]);
        var awk = (0, child_process_1.spawn)('awk', ['$8 == "TCP" { print $2 }'], {
            stdio: [lsof.stdout],
        });
        var result = '';
        awk.stdout.on('data', function (data) { return (result += data); });
        awk.on('close', function () { return _this.parse(result, resolver); });
        if (awk.stdin) {
            awk.stdin.end();
        }
        return promise;
    };
    Killer.prototype.win32 = function (port) {
        var _this = this;
        var resolver, promise = new Promise(function (resolve) {
            resolver = resolve;
        });
        var findstr = (0, child_process_1.spawn)('findstr', [":".concat(port, ".*")], {
            stdio: ['pipe'],
        });
        var netstat = (0, child_process_1.spawn)('netstat', ['-ano'], {
            stdio: ['ignore', findstr.stdin],
        });
        var result = '';
        findstr.stdout.on('data', function (data) { return (result += data); });
        findstr.on('close', function () { return _this.parse(result, resolver); });
        findstr.stdin.end();
        return promise;
    };
    Killer.prototype.parse = function (data, resolver) {
        var pids = data.trim().match(/\d+$/gm);
        if (pids && pids.length) {
            return this.killByPids(pids).then(function (killed) { return resolver(killed); });
        }
        resolver([]);
    };
    return Killer;
}());
exports.Killer = Killer;