#!/bin/bash

ftproot=/home/ftp/gnu
changelogroot=/home/www/html/software/changelogs
changelogwebroot=/software/changelogs
changelogs="*/NEWS */ChangeLog"
tmp="/tmp"
htmlroot=/home/www/html
bindir=/home/www/bin

if ! test -d ${changelogroot}; then
  mkdir -p ${changelogroot}
fi
rm -f ${tmp}/$$.programs ${tmp}/$$.html
touch ${tmp}/$$.programs ${tmp}/$$.html

find ${ftproot} -maxdepth 1 -type d -printf "%f\n"| while read DIR; do
  if ls ${ftproot}/$DIR/$DIR-[0-9.]*.tar.gz >/dev/null 2>&1; then
    # Find the latest release version and make changelog directory
    LATEST=`ls ${ftproot}/$DIR/$DIR-[0-9.]*.tar.gz|\
            sed -n "s/.*$DIR-\([0-9.]*\).tar.gz/\1/p"|sort -r|head -1`
    if ! test -d ${changelogroot}/$DIR; then
      mkdir -p ${changelogroot}/$DIR;
    fi

    # Extract changelogs and NEWS files
    for i in ${changelogs}; do
      tar -x -C ${changelogroot}/$DIR -f ${ftproot}/$DIR/$DIR-$LATEST.tar.gz\
          --force-local -z $i 2>/dev/null > /dev/null
    done

    # Remove unwanted files and insert entry into program table
    find ${changelogroot}/$DIR -size 0b -exec rm {} \;
    find ${ftproot}/$DIR/$DIR-$LATEST.tar.gz -printf "%TY%Tj %Td %TB $DIR $LATEST\n" 2>/dev/null\
         >> ${tmp}/$$.programs
  fi
done

# Get a list of the latest 25 programs and create HTML code
echo "<dl>" >> ${tmp}/$$.html
cat ${tmp}/$$.programs|sort -rn|head -25|while read PROG; do
  thisdate="`echo $PROG|cut -d' ' -f2,3`"
  name="`echo $PROG|cut -d' ' -f4`"
  version="`echo $PROG|cut -d' ' -f5`"

  if test "${thisdate}" != "${olddate}"; then
    if test "${olddate}" != ""; then
      echo "</ul>" >> ${tmp}/$$.html
    fi
    olddate="${thisdate}"
    echo "<dt>${thisdate}<dd><ul>" >> ${tmp}/$$.html
  fi
  if test -f ${htmlroot}/software/${name}/${name}.html; then
    echo -n "<li><a href=\"/software/${name}/${name}.html\"><strong>${name} ${version}</strong></a>" >> ${tmp}/$$.html
  else
    echo -n "<li><strong>${name} ${version}</strong>" >> ${tmp}/$$.html
  fi
  find ${changelogroot}/${name}/${name}-${version}/ -type f 2>/dev/null|while read i; do
    reali=`echo "$i"|sed "s/.*${name}-${version}\///"`
    echo -n " [<a href=\"${changelogwebroot}/${name}/${name}-${version}/${reali}\">${reali}</a>] " >> ${tmp}/$$.html
  done
  echo >> ${tmp}/$$.html
done
echo "</ul></dl>" >> ${tmp}/$$.html

cat ${bindir}/new-software-head.html /tmp/$$.html ${bindir}/new-software-footer.html > ${htmlroot}/server/new-software.html.tmp
# do the move, just in case the cat fails - more atomic -len
mv ${htmlroot}/server/new-software.html.tmp ${htmlroot}/server/new-software.html
rm -f ${tmp}/$$.html ${tmp}/$$.programs

# this compile-command lets you syntax check the script.  -len
#
# local variables:
# eval: (make-local-variable 'compile-command)
# eval: (setq compile-command (concat "/bin/bash -n " buffer-file-name))
# quote-region-quote: "# "
# end: