Adding GIT support to existing project in IntelliJ IDEA
I have successfully opened a Maven subproject within IDEA. Naturally, it hasn't enabled Git integration automatically. From VCS menu I have selected "Enable Version Control Integration" and chose "Git" from submenu.
Then IDEA complained that there is no .git folder within the project and offered to select parent .git folder. I did it and everything worked as expected.
If you don't have Git option in VCS menu, this might be a bug. Try to disable SVN plugin and see if that helps (I don't have SVN plugin in my IDEA).
You may need to add git to the list of version control in the settings
settings > Version Control
then make sure that git is listed in the table as a VCS
I had to do this otherwise git wasn't listed in the VCS menu in the menu bar.
