Let's take the following example:
// GitHub repository owned by me
git@github.com:me/my-repository.git
-- folder1
---- file1.1.txt
-- file1.txt
-- file2.txt
// Some other GitHub repository
git@github.com:other-owner/external-repository.git
-- some_file.txt
-- file_want_to_use.txt
So, I would like to use file_want_to_use.txt into my-repository, having always the latest updates from his owner. Is it possible to do this and if so which is the best way of doing it?
So my-repository should look like this in the end
// GitHub repository owned by me
git@github.com:me/my-repository.git
-- folder1
---- file1.1.txt
-- file1.txt
-- file2.txt
-- file_want_to_use.txt // reflects always what is on master in git@github.com:other-owner/external-repository.git