Sharing Specific folder with Two Repositories in Git

Question

Lets say I have a Repository 'Game' which contains a folder 'common', i want to share the common with another Repository 'Puzzle'. One constraint is that i dont want to share Game repository's 'custom' folder with Puzzle.

├── Game
│   ├── custom
│   ├── other-folder
│   └── rank
└── Puzzle
    ├── hints
    ├── puzzle-specific-folders
    └── rank

• First thing i could think of is using Game as submodule in Puzzle repository Puzzle, but i've to compromise with custom folder.
• Adding New remote in Puzzle repository for Game, but somehow when pulling from Game-remote, is it possible to ignore 'custom' alone? (seems little uncomfortable though)
• Or Something with Branching?
• Whats the best solution and to keep common synchronized acrros both Game and Puzzle?

Answer 1

You can use symbolic link of 'common' (origin folder in 'games') in 'puzzle'. in this way, the 'Puzzle' repository will have only a link and the actual data will be part of 'Games' repository and 'Puzzle' will be always synced to 'Games'

ln -s /Puzzle/common /Games/common