#!/bin/sh

if [ -d rtmp ]; then
    echo "rtmp exists"
    exit
fi

branch=$1
if [ "$branch" = "" ]; then
    echo "Syntax: $0 BRANCH_x_x"
    exit
elif [ "$branch" = "trunk" ]; then
    branch=""
else
    branch="-r $branch"
fi

echo "Making temporary working directory (rtmp)..."

mkdir rtmp || exit
cd rtmp || exit

echo "Checking out $branch source..."
eval "cvs co $branch genesis" || exit

version=`cat genesis/etc/version`
lmajor=`echo $version | cut -d. -f1`
lminor=`echo $version | cut -d. -f2`
lpatch=`echo $version | cut -d. -f3`
lrelease=`echo $lpatch | cut -d- -f2`
lpatch=`echo $lpatch | cut -d- -f1`

lpatch=`expr $lpatch + 1`
echo "Previous Release: $version"

while [ 1 ]; do
    echo -n "New Release [$lmajor.${lminor}.$lpatch-$lrelease] "
    read next

    if [ -z "$next" ]; then
        next="$lmajor.${lminor}.$lpatch-$lrelease"
        break
    else
        echo -n "Use '$next' as the next release? [yes] "
        read yesno
        if [ -z "$yesno" -o "$yesno" = "y" -o "$yesno" = "yes" ]; then
            break
        fi
    fi
done

nrel="Genesis-$next"

cd genesis
echo $next > etc/version

num=`echo $next | sed -e 's/-[A-Z][A-Z]*$//'`

date=`perl -e '($mday,$mon,$yr)=(localtime())[3..5];
               @months = ("Jan","Feb","Mar","Apr","May","Jun",
                          "Jul","Aug","Sep","Oct","Nov","Dec");
               print "$mday-$months[$mon]-$yr\n";'`

str=`printf "%-7s[%s]" $num $date`
chngs=doc/CHANGES
notes=etc/notes

## update the changes file
mv $chngs $chngs.bak
perl -e "while (<STDIN>) { s/\x0c/\x0c\n$str/; print; }" < $chngs.bak > $chngs
vi doc/CHANGES

## update the release notes
mv $notes $notes.bak
perl -e "while (<STDIN>) { (/^RELEASE/) && exit; print; }" <$notes.bak> $notes
echo "RELEASE INFORMATION:" >> $notes
perl -e "\$incr=0;
         while (<STDIN>) {
             if (\$incr) {
                 if (/^(\x0b|\x0c)/) {
                     exit;
                 } else {
                     print;
                 }
             } elsif (/\x0c/) {
                 \$incr = 1;
             } 
         }" < $chngs >> $notes

## make it commitable
echo -n "Really commit? [no] "
read answer

if [ "$answer" = "y" -o "$answer" = "yes" ]; then
    cd src/modules
    ./modbuild -m0 cdc web ext_math
    cd ../..

    ## cvs-fu
    tag="GENESIS_${lmajor}_${lminor}_${lpatch}"
    cvs commit -m ""
    cvs tag $tag

    cd ..
    mv genesis genesis-work
    cvs export -r $tag genesis
else
    echo "Ok, just faking it..."
    cd ..
fi

mv genesis $nrel

tar -cf "${nrel}.tar" $nrel
gzip -9 "${nrel}.tar"