#!/bin/bash
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load.
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Sync each repository.
function hydra_sync {
  for repository in $*; do
    if [ "$repository" == "keyringer" ]; then
      UPDATE_KEYRINGER="yes"
      continue
    fi
  
    # Determine repository URL
    if [ ! -d "$HYDRA_FOLDER/$repository" ]; then
      if [ -e "$HYDRA_FOLDER/config/repository/url" ]; then
        url="`cat $HYDRA_FOLDER/config/repository/url`"
      else
        if [ ! -e "$HYDRA_FOLDER/config/domain" ]; then
          echo "Please set domain configuration"
          exit 1
        fi
        url="gitolite@admin.`cat $HYDRA_FOLDER/config/domain`:$repository"
      fi

      git clone $url $HYDRA_FOLDER/$repository
    fi
  
    if [ -d "$HYDRA_FOLDER/$repository/.git" ]; then
      echo "Syncing $repository..."
  
      if [ "$repository" == "bootless" ]; then
        ( cd $HYDRA_FOLDER/$repository && git annex sync )
      else
        (
          cd $HYDRA_FOLDER/$repository
          if git remote | grep -q "origin"; then
            git pull origin master
            git submodule update --init
          else
            echo "No origin repository configured for $repository, skipping..."
          fi
        )
      fi
    fi
  done
}

# Basic parameters.
if [ -z "$1" ]; then
  REPOSITORIES="config doc bootless dns git/public git/private puppet"
else
  REPOSITORIES="$*"
  UPDATE_KEYRINGER="no"
fi

# Check for requirements.
for req in git-annex; do
  hydra_install_package $req
done

hydra_sync $REPOSITORIES

# Update keyring.
if [ "$UPDATE_KEYRINGER" != "no" ]; then
  if ! which keyringer &> /dev/null; then
    echo "Please install keyringer for a full hydra experience."
  elif [ ! -e "$HOME/.keyringer/$HYDRA" ]; then
    echo "Initializing keyring for $HYDRA..."
    keyringer $HYDRA init $HYDRA_FOLDER/$repository
  fi

  echo "Syncing keyringer..."
  keyringer $HYDRA git pull
fi