How to restore a git project?

Question

git

OS X Yosemite, PhpStorm 9.
The project started to slow down. The problem seems to be in the .git folder. Long indexed. The folder has now been removed from the project. Question - is it possible to somehow find the error in this folder? Or somehow rebuild it. What is generally done if something happens to .git?

Answer 1

If it is indexed for a very long time, then I can advise you to exclude the git folder from indexing. There is such a function in phpstorm if I'm not mistaken.

Answer 2

In principle, are you interested in restoring all data and history, or is it just in principle to initialize the git repository?
If the second is "git init" in the package with the project