#!/bin/bash -x
# This script forks R-x-y-branch from the trunk and updates the
# local checkout directories accordingly
#
# Running the script initiates Grand Feature Freeze
#
# The script must be called with a single argument, containing the 
# dot-separated major.minor version string, e.g. "R-create-branch 2.9"
#
# The following variable will need customizing if the build environment 
# is changed
LOCALDIR=$HOME
#
#--- no changes should be necessary below this line
IFS=. read major minor << EOF
$*
EOF
BRANCH=R-$major-$minor-branch
VERSION=$major.$minor.0
let minor++
NEXT=$major.$minor.0
export REPOS=https://svn.r-project.org/R
svn cp -m"Create $BRANCH" $REPOS/trunk $REPOS/branches/$BRANCH
cd $LOCALDIR/r-release-branch/
umask 022
cd R
svn switch $REPOS/branches/$BRANCH
svn up || exit 1
echo "$VERSION alpha" > VERSION
aclocal -I m4 --force && autoconf --force
svn commit -m "go to $VERSION alpha"
cd $LOCALDIR/r-devel
umask 022
cd R
svn up || exit 1
echo "$NEXT Under development (unstable)" > VERSION
aclocal -I m4 && autoconf
svn commit -m "go to $NEXT devel"