How to install git subrepo in Git for Windows running bash shell

I know there are instructions to install gitsubrepo in Git for windows here.

I understand what I have to do, however, I do not know where to find the shell startup script. I have installed the Git Bash shell, and I am at a loss for where its shell startup script is located.

Does anyone know where the startup script is?

Solution

As long as:

git is in your $PATH
git subrepo .rc file has been added to your .bashrc (source /path/to/git-subrepo/.rc' >> ~/.bashrc, done from a git bash session)

You can use a regular git-bash shell, and start typing git subrepo commands.

The "shell startup configuration" is the .rc file which is where you have cloned the repository (in /c/path/to/your/git-subrepo/clone within a git bash session)

If you clone in C:\Users\Me\git-subrepo, you would need to type in a bash session:

source /c/Users/Me/git-subrepo/.rc' >> ~/.bashrc

The OP wiyosaya did (in the comments):

create the .bashrc: touch ~/.bashrc
add the missing line: echo source /c/GitHub/git-subrepo/.rc >> ~/.bashrc