How to properly merge data in git?

Question

git

Hello, I have a Gitlab repository.
From there it was downloaded via http for a long time, development was carried out without using a version control system (half a year).
The question is how to throw everything on the git now?
Bow, make changes and push back?
Unfortunately, I don't work much with git, that's why I have such questions.

Answer 1

If the repository was originally cloned with gitLab, then the concept of "development was carried out without using a version control system" most likely means that one developer worked on his machine and did not add changes to git? If so, then now it’s enough to add all the changes to the git index, commit and push to the remote repository, and it turns out that all the changes in six months will fall into one big commit.