Git sparse checkout only specific directories of a repo

git-sparse-checkout-specific-folder-demo.sh

BRANCH_NAME="master"

# Clone the repository .git information only
# Docs: https://git-scm.com/docs/git-clone
#
# --no-checkout :: Do not fetch any files, only the `.git` directory.
# --sparse :: Only files at the top-level directory, at the root of the repository, will be part of the checkout. 
# --branch <branch_name> :: Only fetch the information for the given branch.
# --depth 1 :: Only fetch the tip commit, HEAD of the specified branch.
# --filter=blob:none :: Do not download any blob files.
git clone --no-checkout --sparse --branch "$BRANCH_NAME" --depth 1 --filter=blob:none git@github.com:lambrospetrou/lambrospetrou.github.io.git git-sparse-checkout-test

cd git-sparse-checkout-test

# Select specific directories to checkout. In the case below this will be the directories `build-tool/` and `functions/edge`.
# Docs: https://git-scm.com/docs/git-sparse-checkout
git sparse-checkout set build-tool/ functions/edge/

# Actually checkout the above directories. 
# Note: Any file in the root directory of the repository will also be part of the checkout.
git checkout "$BRANCH_NAME"
# or
git checkout HEAD