github.sh

user="louisswarren"
github="https://api.github.com"
pyjsonlines="'\n'.join(r[sys.argv[-1]] for r in json.loads(sys.stdin.read()))"
pycmd="import sys, json; print($pyjsonlines)"

curl -s "$github/users/$user/repos" | python3 -c "$pycmd" git_url |
	while read x; do
		git clone "$x"
	done

if [ ! -d gist ]; then
	mkdir gist;
fi
cd gist/

curl -s "$github/users/$user/gists" | python3 -c "$pycmd" git_pull_url |
	while read x; do
		git clone "$x"
	done

cd ../

Need second one to replace https://gist.github.com/ with git@gist.github.com:.