使用 RubyMine 远程调试 Rails 应用程序

Question

我正在按照 Remote debugging article published by JetBrains 使用 RubyMine 调试远程 Rails 应用程序。

根据说明，我应该运行

rdebug-ide --port 1236 --dispatcher-port 26166 --host 0.0.0.0 ? bin/rails s -b 0.0.0.0

在远程主机上。运行上述命令会抛出以下错误消息，说明选项 -b 无效。

-bash-4.1$ rdebug-ide --port 1236 --dispatcher-port 26166 --host 0.0.0.0  bin/rails s -b 0.0.0.0 
    Using ruby-debug-base 0.2.1 Usage: rdebug-ide is supposed to be called from RDT, NetBeans, RubyMine, or
               the IntelliJ IDEA Ruby plugin.  The command line interface to
               ruby-debug is rdebug.

        Options:
            -h, --host HOST                  Host name used for remote 

debugging
        -p, --port PORT                  Port used for remote debugging
            --dispatcher-port PORT       Port used for multi-process debugging dispatcher
            --evaluation-timeout TIMEOUT evaluation timeout in seconds (default: 10)
            --stop                       stop when the script is loaded
        -x, --trace                      turn on line tracing
        -l, --load-mode                  load mode (experimental)
        -d, --debug                      Debug self - prints information for debugging ruby-debug itself
            --xml-debug                  Debug self - sends information <message>s for debugging ruby-debug itself
        -I, --include PATH               Add PATH to $LOAD_PATH
            --attach-mode                Tells that rdebug-ide is working in attach mode
            --keep-frame-binding         Keep frame bindings
            --disable-int-handler        Disables interrupt signal handler
            --rubymine-protocol-extensions
                                         Enable all RubyMine-specific incompatible protocol extensions
            --catchpoint-deleted-event   Enable chatchpointDeleted event
            --value-as-nested-element    Allow to pass variable's value as nested element instead of attribute

    Common options:
        -v, --version                    Show version

    invalid option: -b

• RubyMine 2017.1 版
• 远程主机操作系统：Centos-6.9
• Ruby 版本：2.3.1p112

您能帮我了解一下出了什么问题吗？谢谢。

Answer 1

您使用的命令似乎不正确。应该是：

rdebug-ide --port 1236 --dispatcher-port 26166 --host 0.0.0.0 -- bin/rails s -b 0.0.0.0

您在 bin/rails 之前缺少双破折号。

错误表明 b 选项对 rdebug-ide 命令无效。但是，b 选项适用于 bin/rails s 命令。