Download a folder from a github repo.

git-download.sh

#! /bin/bash
#
# from: wget https://raw.githubusercontent.com/ojbc/docker/master/java8-karaf3/files/git-download.sh
# modified by David Gleba 2018-10-04
# rev-7
#

#set -x

if [ $# -ne 1 ]; then
    echo $0: usage: git-download.sh gitHubAPIURLToDownloadFrom
    echo $0: The API URL could be for example: https://api.github.com/repos/ojbc/main/contents/shared/ojb-certs
    exit 1
fi

DIRS=$(curl -s $1 | grep html_url | grep -v gitignore | sed "s/.*\(https.*\)\".*/\1/g")

for dir in $DIRS
do
	plain_dir=$(basename $dir)
	mkdir $plain_dir
	cd $plain_dir
	dir=$(echo $dir | sed "s/github\.com\//api.github.com\/repos\//g" | sed "s/tree/contents/g" | sed "s/master//g")
	FILES=$(curl -s $dir | grep download_url | sed "s/.*\(https.*\)\".*/\1/g")
	for f in $FILES
	do
		plainfile=$(basename $f)
		curl -s $f -o $plainfile
	done
	cd ..
done