Bash script to clone all repositories of a given GitHub organisation

clone-all-gh.sh

#!/usr/bin/env bash

# "CLONE_ALL_GH_TOKEN" should be a Personal Token from https://github.com/settings/tokens
# with scope "repo"
ORG=<YOUR_ORG_NAME_HERE>
GIT_OUTPUT_DIRECTORY=${1:-"$HOME/github"}
echo Cloning to $GIT_OUTPUT_DIRECTORY
# "100" is the maximum adhered to by GitHub
PER_PAGE=100

cd $GIT_OUTPUT_DIRECTORY || exit 1

rm -f clone-all.out headers

url="https://api.github.com/orgs/$ORG/repos?per_page=$PER_PAGE"

(while [[ -n "$url" ]]
do
  echo url: \"$url\" >> clone-all.out 2>&1
  curl -D headers -H "Authorization: token $CLONE_ALL_GH_TOKEN" -s "$url" |
    jq -r ".[] | select(.archived==false) | .name"
  url=$(egrep '^link: ' headers | egrep -o '<[^>]+>; rel="next"' | egrep -o 'https://[^>]+')
done) |
while read REPO_NAME ; do
  echo -n ${REPO_NAME}: ""
  if [[ -d ${REPO_NAME} ]]
  then
      (cd $REPO_NAME && git pull -v origin master:master) >> clone-all.out 2>&1 ||
         { echo "ERROR: Unable to update!" ; continue ; }
      echo -n updated ""
      (cd $REPO_NAME && git remote update --prune origin) >> clone-all.out 2>&1 ||
         { echo "ERROR: Pruning failed!"; continue ; }
      echo pruned
  else
      git clone git@github.com:${ORG}/$REPO_NAME.git $GIT_OUTPUT_DIRECTORY/$REPO_NAME >> clone-all.out 2>&1 ||
          { echo "ERROR: Unable to clone!" ; continue ; }
      echo cloned
  fi
done