假设,只想获取 unit 这个目录下的所有文件:
mkdir myrepo
cd myrepo
git init
git remote add -f origin https://github.com/twbs/bootstrap //这一步会报错, fatal: remote origin already exists
git config core.sparseCheckout true
echo "twbs/bootstrap/tree/master/js/tests/*" >> .git/info/sparse-checkout
git pull origin master