#!/usr/bin/env bash
key_name="id_gitosis"
key_location="$HOME/.ssh"
ssh_conf_dir="$HOME/.ssh"
server="example.com"

echo "keyname '${key_name}'"
echo "key location: '${key_location}'"

function must_accept
{
    question="${1} (y/abort)"
    echo ${question}
    read -r
    ans=$REPLY #must save it or I can only use it once
    until [ "$ans" = "y" ]; do
        if [ "$ans" = "abort" ];then
            echo "aborting as commanded..."
            exit 1
        fi
        echo "valid answers: 'abort', 'y'"
        echo ${question}
        read -r
        ans=$REPLY
    done
}

echo "Warning! Warning!"
must_accept "Will overwrite *everything* in ${ssh_conf_dir}/config"
(cat <<- :EOF:
    Host icgit
    HostName ${server}
    User git
    IdentityFile ${key_location}/${key_name}

    :EOF:
) > ${ssh_conf_dir}/config

echo "removing earlier keys"
rm -rf ${key_location}/${key_name}
rm -rf ${key_location}/${key_name}.pub

echo "[Generating Key]..."
ssh-keygen -t rsa -f ${key_location}/${key_name} || exit
echo "[Adding key to keyring]"
ssh-add ${key_location}/${key_name}

echo "[Uploading key to server]"
scp ${key_location}/${key_name}.pub root@${server}:/root/admin-acc-ssh-key.pub.$$ || exit

ssh root@${server} << *
  apt-get remove -y --purge gitosis
  rm -rf /srv/gitosis
  userdel git
  rm -rf /home/git
  apt-get install -y gitosis
  adduser --system --shell /bin/sh --gecos 'Git' --group --disabled-password --home /home/git git
  sudo -H -u git gitosis-init < admin-acc-ssh-key.pub.$$
  userdel gitosis
  rm admin-acc-ssh-key.pub.$$
  exit
*
echo "checking out admin repo - type ssh key password again plix"
(
    cd /tmp
    rm -rf gitosis-admin
    git clone git@${server}:gitosis-admin.git
)