#!/bin/sh -e

# Script to make a package from your current source tree, with appropriate
# version number (and changelog etc) for a CVS build.
#
# Arguments: These get passed straight through to debuild; you probably want
#            something like
#
#            debian/cvs_build -rfakeroot -us -uc
#
# (it builds an `experimental' package; I suppose you can sign it and upload
#  the source if you really want to).

if [ ! -f ChangeLog -o ! -d debian ]; then
	echo "This should be run from the root of your exult source tree,"
	echo "like so:"
	echo
	echo "debian/cvs_build"
	exit 1
fi

# Generate the sub version string, which will be the date of the last (top)
# change recorded in the ChangeLog, followed by two digits for the total 
# number of ChangeLog entries for this date (so that, hopefully, the exact
# source could be retrieved, if desired... of course this relies on the
# ChangeLog being appropriately updated all the time :P). If there are more
# than 99 ChangeLog entries for the current day (!!), 99 is used.

count_date=`grep '^[0-9]' ChangeLog | awk '{ print $1 }' | uniq -c | head -1 | tr -d '-'`
count=`echo $count_date | awk '{ print $1 }'`
date=`echo $count_date | awk '{ print $2 }'`

if [ $count -ge 100 ]; then
	echo "WARNING more than 100 different log entries on this day, sub-day version number set to 99."
	$count=99
fi

sub_ver=`printf "%d%02d" $date $count`

# TODO Obtain the current upstream version "automatically"
exult_ver="0.97cvs"

full_ver="1:$exult_ver-$sub_ver"

# Put an entry in the debian/changelog
# TODO Should probably note the person who built this, rather than 
#  `the exult team'; possibly control should be update as well...

mv debian/changelog debian/changelog.tmp

echo "\
exult ($full_ver) experimental; urgency=low

  * automatically generated entry for cvs build

 -- The Exult Team <exult-general@lists.sourceforge.net>  `date -R`
" > debian/changelog

cat debian/changelog.tmp >> debian/changelog

debuild $*

# Replace the old changelog (to keep CVS happy and also so they don't
# accumulate; only real releases get the privilege of accumulating :P)

mv debian/changelog.tmp debian/changelog