why my all index is change in my git project

Question

I am using GitLab for my project repository.
From past few week I have not committed my project hence I was only coder in it.
Now when I am trying to commit my project, it shows me that my all file has made any kind of changes.

So i try git diff command: here I am attaching screenshot of what result I got. It is clearly show me that all index file has been changed.

I had tried google to solve problem but I failed in it.
So finally here I am to get solution. I do not want to commit my all files

Answer 1

For file permission mode, clone again your repo after:

git config --global core.filemode false

Then from your new cloned repo, do a

git --work-tree=/path/to/old/cloned/repo add .

That will import your actual changes into the new cloned repo.

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If you want to keep your current repo (with its changes) you can see the difference with git diff, as I mentioned in this answer.
Note that since Git 2.9.1, you can change the permission of a file with

git add --chmod=-x .