configure_access_from_user_git.sh

ConfigureAccessFromUserGit () {
  if ! getent passwd git >/dev/null 2>&1; then
    adduser git
    su - -s /bin/bash git <<SU
      mkdir .ssh
      chmod 700 .ssh
      touch .ssh/authorized_keys
      chmod 600 .ssh/authorized_keys
SU

    git_shell=$(which git-shell)
    set +e
    if ! grep ${git_shell} /etc/shells >/dev/null ; then
      echo ${git_shell} >> /etc/shells
    fi
    set -e

    chsh -s ${git_shell} git

    su - -s /bin/bash git <<SU
      mkdir git-shell-commands
      touch git-shell-commands/no-interactive-login
SU
      cat >/home/git/git-shell-commands/no-interactive-login <<'EOF'
#!/bin/sh

printf '%s\n' "Hi $USER! You've successfully authenticated, but I do not"
printf '%s\n' "provide interactive shell access."
exit 128
EOF
      chmod +x /home/git/git-shell-commands/no-interactive-login
  fi
}

CreateReposDir () {
  repos_dir=$1
  if [ ! -d "${repos_dir}" ]; then
    mkdir -p ${repos_dir}
    chown git:git ${repos_dir}
  fi
}


ConfigureAccessFromUserGit
CreateReposDir /opt/git-repos