Unable to launch debugger with fish shell as default system shell.

I am working on OS X (10.10.5). I prefer to have my login shell set to fish (/usr/local/bin/fish). However, this appears to break the method currently being used by the extension to launch external console commands.

Specifically, the terminal window that pops up (not a big deal, but it would be "nice" if the extension used the internal debugger settings--I prefer iTerm.app to terminal.app) is pretty obviously expecting a bash shell. My default shell (fish) fails pretty miserably with the given commands, and VS Code quite nicely gives the following message:

Unable to start debugging. Failed to initialize debugger terminal.

Basically I am asking this: is there a method for forcing the external command to use a bash environment instead of the default system environment?

I'd prefer to not have to switch back and forth just to run the debugger (which works fantastically when I switch the system login shell to bash).

Inizia riproducendo il problema del terminale del debugger su OS X con fish configurato come shell di login, quindi esamina il percorso di avvio del comando della console esterna dell'estensione e il modo in cui seleziona la shell. Il lavoro è completato quando il debugger si avvia correttamente senza modificare la shell di login del sistema, mantenendo il comportamento esistente di bash.