This script clones all public repos from a given github organization in parallel

clone_org

#!/bin/bash

if [ "$1" == "" ]; then
  app=$(basename ${0})
  echo "Usage: $app <organization_name> [<curl opts>]"
  echo "  e.g. $app twitter                   # clone all public repos from <twitter>"
  echo "  e.g. $app syncthing -u andersonvom  # clone all public and private repos from <syncthing> that <andersonvom> has access to"
  exit 1
fi

org=${1}
curl_opts=${@:2}
per_page=100

function next_page {
  local current_page_number=$1
  local next_page_number=$(( $current_page_number + 1 ))

  curl $curl_opts -Is "https://api.github.com/orgs/${org}/repos?per_page=${per_page}&page=${current_page_number}" | grep -oe "page=$next_page_number" | cut -d "=" -f2
}

function clone_page {
  local page=$1
  for repo in $(curl $curl_opts -s "https://api.github.com/orgs/${org}/repos?per_page=${per_page}&page=${page}" |
               grep -e "clone_url" |
               cut -d ':' -f2- |
               sed -e 's/[", ]//g' ); do
    echo Cloning $repo ...
    git clone --depth 1 $repo &> /dev/null &
  done

  next_page_number=$(next_page $page)
  if [ "$next_page_number" != "" ]; then
    clone_page $next_page_number
  fi
}

clone_page 1
echo "This might take a while..."
wait
echo "Done!"