Backup github repos, courtesy @kikitux

github-backup.sh

#!/bin/bash
​
user="`basename ${0%.sh}`"
​
GHTEST="`curl -sS -I https://api.github.com 2>&1`"
RET=$?
 
if [ ${RET} -ne 0 ]; then
  echo "ERR: check internet connection"
  echo "${GHTEST}"
  echo "Curl exit code: ${RET}"
  exit ${RET}
fi
​
therepolist="`curl -sSL https://api.github.com/users/${user}/repos | jq -r .[].html_url`"
​
[ -d ${user} ] || mkdir -p ${user}
​
for repourl in ${therepolist}; do
  repo="${repourl#https://github.com/}"
​
  if [ -d ${repo} ] ;then
    pushd ${repo}
    #check .git/config for pr/*, add if not present
    grep 'fetch.*.=.*.+refs/pull/\*/head:refs/remotes/origin/pr/\*' .git/config &>/dev/null
    if [ $? -ne 0 ]; then
      git config --add remote.origin.fetch '+refs/pull/*/head:refs/remotes/origin/pr/*'
    fi
    git clean -fdx
    git checkout master
    git pull -f --prune origin HEAD
    git fetch --all --tags
    popd
  else
    git clone ${repourl} ${repo}
    pushd ${repo}
    git config --add remote.origin.fetch '+refs/pull/*/head:refs/remotes/origin/pr/*'
    git pull -f --prune origin HEAD
    git fetch --all --tags
    popd
  fi
​
done