This post is out of date, please read another post for an extension which does some of the job.

Let's put simple things simple and straightforward.

  1. Open file %LOCALAPPDATA%\Code\app-[version]\resources\app\client\vs\workbench\workbench.main.js.
  2. Search openTerminal and locate the function that's related to "cmd.exe".
  3. Replace "start","/wait" of ["/c","start","/wait"] with what you want. E.g., "C:\\Program Files\\Git\\git-bash.exe".

Done and enjoy.