#!/bin/sh

set -e

old_version=$1
if [ $# -gt 1 ]; then
	echo "Usage: $0 [old upstream version]" >&2
	exit 1;
fi


echo "Checking if we are in branches/upstream..."
if ! svn info | grep -q '^URL: svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/branches/upstream$'; then
	echo "Are we not in branches/upstream?" >&2
	exit 1
fi

if [ -z "$old_version" ]; then
	old_version=`cvs status cvs2cl.pl | grep 'Working revision:' | sed -e 's/.*Working revision:[ \t]*//'`
fi

if [ -z "$old_version" ]; then
	echo "Old version is empty.  This should not be."
	exit 1;
fi

old_tag=upstream_version_`echo $old_version | sed -e 's/\./_/g'`
echo "Checking if old tag for upstream version exists"
if ! svn ls http://svn.noreply.org/svn/pkg-cvs2cl/tags/$old_tag >/dev/null 2>&1; then
	echo "Old tag $old_tag does not already exists [you can pass one manually]" >&2
	exit 1
fi


echo "Updating files from upstream cvs"
cvs up COPYING TODO cvs2cl.pl index.html
cvs2cl -w -S --utc --no-wrap

version=`cvs status cvs2cl.pl | grep 'Working revision:' | sed -e 's/.*Working revision:[ \t]*//'`
tag=upstream_version_`echo $version | sed -e 's/\./_/g'`
dirname="cvs2cl-$version"
dirnameUS="cvs2cl_$version"
date=`822-date`

if [ -z "$version" ]; then
	echo "New version is empty.  This should not be."
	exit 1;
fi

echo "Checking if tag for upstream version exists"
if svn ls http://svn.noreply.org/svn/pkg-cvs2cl/tags/$tag >/dev/null 2>&1; then
	echo "Tag $tag already exists" >&2
	exit 1
fi

echo "Commit new upstream version"
svn ci -m 'Update from upstream' COPYING TODO cvs2cl.pl index.html CVS ChangeLog

echo "Copying to tag"
svn cp -m "Upstream version $version" \
	svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/branches/upstream \
	svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/tags/$tag
cd ..
echo "Checking out tag"
svn co svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/tags/$tag $tag

cd $tag
echo "Removing CVS Directory from tag"
svn rm CVS
svn ci -m 'Removing CVS Directory from tag' CVS

cat > README.ORIGTARGZ << EOF
This orig.tar.gz was build on $date from a
cvs checkout of
 cvs -d :pserver:anonymous@cvs.red-bean.com:/usr/local/cvs login
 (password the key)
 cvs -d :pserver:anonymous@cvs.red-bean.com:/usr/local/cvs co cvs2cl
since upstream does not provide a .tar.gz file for download.

cvs2cl was at revision $version at that time.

There are a lot more files in the CVS, but this tarball only
includes cvs2cl.pl and 3 or 4 other files.

The ChangeLog was created using cvs2cl itself.
-- 
Peter Palfrader <weasel@debian.org>
EOF

echo "Adding README.ORIGTARGZ"
svn add README.ORIGTARGZ
svn ci -m 'Document where this comes from' README.ORIGTARGZ
cd ..
rm -rf $tag

echo "Exporting tag $tag"
svn export http://svn.noreply.org/svn/pkg-cvs2cl/tags/$tag $dirname
tar czf $dirnameUS.orig.tar.gz $dirname


cd trunk
svn up

echo "Removing old README.ORIGTARGZ from trunk"
svn rm README.ORIGTARGZ
svn ci -m 'Removing old README.ORIGTARGZ'

svn up

echo "Merging changes"
if ! svn merge svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/tags/$old_tag svn+ssh://svn.noreply.org/svn/pkg-cvs2cl/tags/$tag . ; then
	echo "Merging failed, You are on your own from now on."
	exit 1
fi

echo "Now run (in trunk):"
echo " svn ci -m 'Merge in changes from $version'"
echo " dch --newversion '$version-1' 'New upstream version.'"
echo " svn ci -m 'Update debian changelog for new upstream version $version'"