A little research on how zsh is judging the current git directory

Zsh goes into a git directory and reacts, showing that it's a git

So why not get into a normal folder? How exactly do you judge that?

I did a little experiment and set up a. Git directory under a normal folder, zsh in.

No response.

So git command, git init, zsh in.

Yes, the display is currently a git directory.

This is the case, so go in. git directory, delete the three files (the directory is not deleted), zsh in

No response, it appears to be related to the integrity of this file

So touch to create three empty files with the same name, and then zsh in

No response

Conclusion:

Zsh should be the judge of the current. Giit directory, and the contents of the integrity of the file and the legitimacy of the judgment, that is, so to determine whether the current git directory!

A little research on how zsh is judging the current git directory