#! /bin/sh
# Adapted from https://stackoverflow.com/a/13738951/7976758
set -e

while getopts b:l: opt; do
   case $opt in
      b ) branch="$OPTARG" ;;
      l ) local_repo="$OPTARG" ;;
   esac
done
shift `expr $OPTIND - 1`

if [ -z "$2" ]; then
   echo "Usage: $0 [-b branch] [-l local] origin patterns..." >&2
   exit 1
fi

origin="$1"
shift

test -z "$branch" && branch=master
test -z "$local_repo" && local_repo="`basename \"$origin\" .git`"

mkdir -p "$local_repo"
cd "$local_repo"

git init
git remote add origin "$origin"

git config core.sparseCheckout true

# Loops over remaining args
for arg; do
  echo "$arg" >> .git/info/sparse-checkout
done

exec git pull origin $branch