Function buildConnector

out/cli.cjs:53065–53133

({ allowH2, maxCachedSessions, socketPath, timeout, ...opts })

          if (this._sessionCache.size >= this._maxCachedSessions) {
            const { value: oldestKey } = this._sessionCache.keys().next();
            this._sessionCache.delete(oldestKey);
          }
          this._sessionCache.set(sessionKey, session);
        }
      };
    }
    function buildConnector({ allowH2, maxCachedSessions, socketPath, timeout, ...opts }) {
      if (maxCachedSessions != null && (!Number.isInteger(maxCachedSessions) || maxCachedSessions < 0)) {
        throw new InvalidArgumentError("maxCachedSessions must be a positive integer or zero");
      }
      const options = { path: socketPath, ...opts };
      const sessionCache = new SessionCache(maxCachedSessions == null ? 100 : maxCachedSessions);
      timeout = timeout == null ? 1e4 : timeout;
      allowH2 = allowH2 != null ? allowH2 : false;
      return function connect3({ hostname, host, protocol, port, servername, localAddress, httpSocket }, callback) {
        let socket;
        if (protocol === "https:") {
          if (!tls2) {
            tls2 = require("tls");
          }
          servername = servername || options.servername || util4.getServerName(host) || null;
          const sessionKey = servername || hostname;
          const session = sessionCache.get(sessionKey) || null;
          assert2(sessionKey);
          socket = tls2.connect({
            highWaterMark: 16384,
            // TLS in node can't have bigger HWM anyway...
            ...options,
            servername,
            session,
            localAddress,
            // TODO(HTTP/2): Add support for h2c
            ALPNProtocols: allowH2 ? ["http/1.1", "h2"] : ["http/1.1"],
            socket: httpSocket,
            // upgrade socket connection
            port: port || 443,
            host: hostname
          });
          socket.on("session", function(session2) {
            sessionCache.set(sessionKey, session2);
          });
        } else {
          assert2(!httpSocket, "httpSocket can only be sent on TLS update");
          socket = net3.connect({
            highWaterMark: 64 * 1024,
            // Same as nodejs fs streams.
            ...options,
            localAddress,
            port: port || 80,
            host: hostname
          });
        }
        if (options.keepAlive == null || options.keepAlive) {
          const keepAliveInitialDelay = options.keepAliveInitialDelay === void 0 ? 6e4 : options.keepAliveInitialDelay;
          socket.setKeepAlive(true, keepAliveInitialDelay);
        }
        const cancelTimeout = setupTimeout2(() => onConnectTimeout(socket), timeout);
        socket.setNoDelay(true).once(protocol === "https:" ? "secureConnect" : "connect", function() {