#!/bin/bash
desc="Update Drupal module to a given version"
usage="$0 <name_of_module>  <version>  [alternative install path]"
source drupalpath.sh
ftpdir=http://ftp.drupal.org/files/projects/

if [ $# -lt 2 ]; then
  if [ "$1" != "--help" ]; then
    echo "  ** wrong number of arguments supplied **"
  fi
  echo " " $desc
  echo "  Usage:" $usage
  exit
fi
if [ -n "$3" ]; then           # alternative install directory
  if [ "$1" == "drupal" ]; then
    drupaldir=$3
  else
    targetdir=$3
  fi
fi

echo installing $1-$2 into $targetdir
wget -q $ftpdir/$1-$2.tar.gz
return_val=$?
if [ "$return_val" -ne 0 ]; then
  echo "failed to wget $ftpdir/$1-$2.tar.gz"
  exit
fi
rm -fR $targetdir/$1     #delete old version
chdate=`stat -c %y $1-$2.tar.gz | awk '{printf $1 "\n"}'`
tar -zxf $1-$2.tar.gz -C $targetdir
mv $1-$2.tar.gz $archivedir/$1-$2_$chdate.tar.gz
if [ "$1" == "drupal" ]; then
  echo "   Moving new version of drupal from:" $targetdir/$1-$2 to $drupaldir
  rm -fR $drupaldir
  mv $targetdir/$1-$2 $drupaldir
fi