#!/bin/sh -x

# Run this from /tmp.
CVSROOT=/cvs/gcc
export CVSROOT

PATH=/usr/local/bin:$PATH
WWWBASE=/www/gcc/htdocs

WORKDIR=/tmp/gcc-doc-update.$$

/bin/rm -rf $WORKDIR
/bin/mkdir $WORKDIR
cd $WORKDIR

# Find all the texi files in the repository, except those in directories
# we do not care about (Attic, texinfo, etc).
find $CVSROOT/gcc -name \*.texi,v -print | fgrep -v -f/home/gccadmin/scripts/doc_exclude | sed -e s#$CVSROOT/##g -e s#,v##g > FILES


# Checkout all the texi files and get them into a single directory.
# If we ever have texi files with the same name we'll have to do this
# differently.
cvs -Q co `cat FILES`
mv `find . -name \*.texi -print` .

# Now convert the relavent files from texi to html 
for file in c-tree cpp chill gcc gcov gxxint g77 iostream objc-features; do 
  /home/gccadmin/scripts/texi2html -glossary -menu -split_chapter ${file}.texi
done

# Then build a gzipped copy of each of the resulting .html files
for file in *.html; do
  cat $file | gzip --best > $file.gz
done

news_file=`grep "News About GNU Fortran" $WWWBASE/onlinedocs/g77_toc.html | sed -e '/HREF=.*[^.]/  s#^.*HREF="##g' | sed -e 's%#SEC.*%%g'`
bugs_file=`grep "Known Causes of Trouble with GNU Fortran" $WWWBASE/onlinedocs/g77_toc.html | sed -e '/HREF=.*[^.]/  s#^.*HREF="##g' | sed -e 's%#SEC.*%%g'`
contrib_file=`grep "Contributors to GCC" $WWWBASE/onlinedocs/gcc_toc.html | sed -e '/HREF=.*[^.]/  s#^.*HREF="##g' | sed -e 's%#SEC.*%%g'`

# On the 15th of the month, wipe all the old files from the
# web server.
today=`date +%d`
if test $today = 15; then
  find $WWWBASE/onlinedocs -type f -print | grep -v index.html | xargs rm
fi

# And copy the resulting html files to the web server
for file in *.html; do
  cat $WWWBASE/onlinedocs/$file | 
    sed -e '/^This document was generated on/d' \
        -e '/^<!-- Created by texi/d' > file1
  cat $file |
    sed -e '/^This document was generated on/d' \
        -e '/^<!-- Created by texi/d' > file2
  if cmp -s file1 file2; then
    :
  else
    cp $file ${file}.gz $WWWBASE/onlinedocs
  fi
done

cd $WWWBASE/onlinedocs

rm -f g77_news.html
rm -f g77_bugs.html
rm -f g77_news.html.gz
rm -f g77_bugs.html.gz
ln $news_file g77_news.html
ln $bugs_file g77_bugs.html
ln ${news_file}.gz g77_news.html.gz
ln ${bugs_file}.gz g77_bugs.html.gz

cd $WWWBASE
rm -f thanks.html
rm -f thanks.html.gz
ln onlinedocs/$contrib_file thanks.html
ln onlinedocs/${contrib_file}.gz thanks.html.gz

rm -rf $WORKDIR