git worktree 稀疏检出（sparseCheckout）

稀疏检出配置：

git config core.sparsecheckout true

echo another_folder/xxxx/ >> .git/info/sparse-checkout

worktree稀疏配置：

1.git worktree add -b xxxx_branch ./xxxx_branchorigin/xxxx_branch --no-checkout ，先使用--no-checkout，然后加配置，然后checkout

2.要在./git/worktrees/xxxx_branch/info下创建sparse-checkout文件

3.cd xxxx_branch && git checkout