RubyMine 2020.1 Help


File | Settings | Build, Execution, Deployment | Debugger for Windows and Linux
RubyMine | Preferences | Build, Execution, Deployment | Debugger for macOS
Ctrl+Alt+S the Settings/Preferences icon

Use this page to configure behavior of the Debugger and customize its view.

Common options



Focus application on breakpoint

If this checkbox is selected, on hitting a breakpoint, RubyMine will show the location of this breakpoint in the editor and will attempt to bring its frame to the front.

Show debug window on breakpoint

If this checkbox is selected, RubyMine activates the Debug tool window on hitting a breakpoint.

Hide debug window on process termination

Automatically hide the Debug tool window when the debugged program terminates.

Scroll execution point to center

If this checkbox is selected, the line with the current execution point will be kept in the middle of the screen.

Click line number to perform run to cursor

If this checkbox is selected, you can click a line number in the editor to run program execution to this line.

Remove breakpoint

Select how you want to remove breakpoints:

  • By clicking them with the left mouse button

  • By dragging them to the editor or clicking them with the middle mouse button. In this case, clicking a breakpoint will toggle its state between enabled and disabled.

You can also choose whether you want a confirmation dialog to be displayed when you are about to remove a conditional or a logging breakpoint




Debug connection timeout (s)

Specify here the debug connection timeout in seconds.

Verbose debugger output

Select this checkbox to turn the verbose debugger output on.

Trace to_s evaluation

This option enables you to improve the debugging speed and to track time and memory limit during debugging.

If this option is unselected, each object is traced. Compare:

rm timeout to s

By default, this checkbox is selected.

Attach to sub-processes automatically while debugging

Select this checkbox to enable multi-process debugging.

Read frames of non-suspended threads (not supported for Ruby 2.0)

Select this checkbox to be able to view frames of threads not paused by current breakpoint event.

Ignore non-project sources

Select this checkbox to automatically skip the external libraries code and keep the focus on your own code.
RubyMine will not stop at any non-project code no matter what stepping command is used. This option also prevents opening external files in the editor tabs while debugging.

Built-in server




Use this spin box to specify the port on which the built-in web server runs. By default this port is set to port 63342 through which RubyMine accepts connections from services. You can set the port number to any other value starting with 1024 and higher.

Can accept external connections

If this checkbox is selected, then the files on the built-in server running on the specified port are accessible from another computer.
If this checkbox is cleared (by default), then the debugger listens only to local connections.

Allow unsigned requests

For security reasons, any request to a page on the built-in server from outside RubyMine is by default rejected and the following authorization popup is displayed:
To access the requested page, click Copy authorization URL to clipboard and paste the generated token in the address bar of the browser.

However this behavior may be annoying, for example, it may block your debugging session if manual intervention is impossible. To suppress displaying the authorization popup, select the Allow unsigned requests checkbox.

Last modified: 29 May 2020