#!/bin/sh

set -e

cwd=`pwd`
basename=`basename $0`
scratch_area="`echo $basename | sed -e s/\.sh$//`"
repos=$scratch_area/repos
trunk=$scratch_area/trunk
branch=$scratch_area/branch
trunk_url=file:///$cwd/$repos/trunk
branch_url=file:///$cwd/$repos/branch

set -x

rm -rf $scratch_area
mkdir -p $scratch_area

mkdir -p $trunk
echo alpha > $trunk/alpha
echo beta > $trunk/beta
mkdir $trunk/gamma
echo delta > $trunk/gamma/delta
mkdir $trunk/epsilon
echo zeta > $trunk/epsilon/zeta

svnadmin create $cwd/$repos
svn import $trunk $trunk_url -m "importing project tree"
svn copy $trunk_url $branch_url -m "creating branch"
rm -rf $trunk
svn checkout $trunk_url $trunk
svn checkout $trunk_url ${trunk}2
svn checkout $branch_url $branch

svn ps svn:externals '^/branch/epsilon ext' $trunk
svn commit -m 'setting external' $trunk

svn update $trunk
svn update ${trunk}2

echo a > $trunk/alpha
echo a > $trunk/ext/zeta
svn commit -m 'change alpha' $trunk
svn commit -m 'change zeta' $trunk/ext

echo b > ${trunk}2/alpha
echo b > ${trunk}2/ext/zeta
svn up --accept=postpone ${trunk}2
svn st ${trunk}2