Method startPty

src/process-sessions.ts:342–373

(session: ProcessSession, input: StartCommandInput)

  }

  private async startPty(session: ProcessSession, input: StartCommandInput): Promise<void> {
    let nodePty: typeof import("node-pty");
    try {
      nodePty = await import("node-pty");
    } catch {
      throw new Error("PTY support requires the optional node-pty dependency.");
    }

    const shell = resolveShellCommand(input.command);
    let pty: import("node-pty").IPty;
    try {
      pty = nodePty.spawn(shell.executable, shell.args, {
        cwd: input.cwd,
        env: processEnvironment(),
        name: "xterm-256color",
        cols: session.columns,
        rows: session.rows,
      });
    } catch (error) {
      throw error;
    }

    session.process = {
      write: (data) => pty.write(data),
      kill: (signal) => pty.kill(signal),
      resize: (columns, rows) => pty.resize(columns, rows),
    };
    pty.onData((data) => this.append(session, data));
    pty.onExit(({ exitCode, signal }) => {
      this.finish(session, exitCode, signal === 0 ? undefined : String(signal));
    });
  }

  private finish(session: ProcessSession, exitCode?: number, signal?: string): void {
    if (!session.running) return;