git子模块是在工作副本中拥有工作副本的唯一安全方法吗？

In my scenario, I have a program that analyzes data input files and produces other data output files. I want to version control the program, and I want to version control the data files, and as a matter of preference, I want to have the working copy of the data files within the working copy of the program. I want the program and data to be version controlled separately to reduce "noise". The program does not have a dependency on the data files.In my scenario, I have a program that analyzes