#!/bin/bash
#
## Update grimoires from git dirs.
#

# These are pretty obvious.
GRIM_ROOT=/var/lib/sorcery/codex
GIT_ROOT=/home/yourhomedir/git

# GRIM_DIR and GIT_DIR need to correspond with eachother. They exist 
# separately because the grimoire and git repository names aren't always 
# the same. Notice that these are arrays, so don't remove the 
# parenthesis.
GRIM_DIR=($GRIM_ROOT/test $GRIM_ROOT/z-rejected $GRIM_ROOT/xorg-modular)
GIT_DIR=($GIT_ROOT/grimoire $GIT_ROOT/z-rejected $GIT_ROOT/xorg-modular)

# These are here for setting the correct URL in the GRIMOIRE file. That 
# way you can later use 'scribe update'. FROM_PATH needs to correspond 
# to GRIM_DIR and GIT_DIR, and is an array.
FROM_SERV=http://codex.sourcemage.org
FROM_PATH=(test.tar.bz2 z-rejected.tar.bz2 testing/xorg-modular.tar.bz2)

# To reindex the grimoires after update.
REINDEX=y


n=0
ok=0
for i in ${GRIM_DIR[@]}; do
  if [[ ! -d "${GIT_DIR[n]}" ]]; then
    echo "error: ${GIT_DIR[n]} does not exist!" >&2
    echo "Not updating grimoire ${GRIM_DIR[n]##*/}." >&2
    ((n+=1))
    continue
  fi

  if [[ -e "${GRIM_DIR[n]}" ]]; then
    if [[ -d "${GRIM_DIR[n]}" ]]; then
      echo -n "Deleting ${GRIM_DIR[n]}/* ... "
      rm -rf "${GRIM_DIR[n]}/*" 2>/dev/null
      echo done.
    else
      echo "error: ${GRIM_DIR[n]} exists but is not a directory!" >&2
      echo "Not updating grimoire ${GRIM_DIR[n]##*/}." >&2
      ((n+=1))
      continue
    fi
  else
    echo -n "Creating ${GRIM_DIR[n]}/ ... "
    mkdir -p "${GRIM_DIR[n]}"
    echo done.
  fi

  echo -n "Copying files from ${GIT_DIR[n]}/ ... "
  for file in `ls "${GIT_DIR[n]}/"`; do
    cp -r "${GIT_DIR[n]}/$file" "${GRIM_DIR[n]}/"
  done
  echo done.

  echo -n "Creating ${GRIM_DIR[n]}/GRIMOIRE ... "
  echo "FROM_URL=$FROM_SERV/${FROM_PATH[n]}" > "${GRIM_DIR[n]}/GRIMOIRE"
  chmod +x "${GRIM_DIR[n]}/GRIMOIRE"
  echo done.
  ((ok+=1))

  ((n+=1))
done

if ((ok>0)); then
  echo "$ok grimoires updated."
  [[ "$REINDEX" == "y" ]] && scribe reindex ${GRIM_DIR[@]/$GRIM_ROOT\/}
else
  echo "No grimoires updated."
fi