title: Checking out specific file from git repository
body: <p>I have a git repository named demo.In that git i have a file named details.This details file contains some filenames listed in it.My requirement is that when i checkout the repository, I want only the files whose names are in details file to be pulled and other files shouldn't be checked out.I have tried sparse  checkout , but sparse checkout helps to pull files of a sub directory in a repository while my need is that the files which are listed in details file alone should be checked out.Could you suggest me ways to do it?</p>