#!/bin/bash
#-------------------------------------------------------------------------------
# Copyright (C) 2006-2021 British Crown (Met Office) & Contributors.
#
# This file is part of FCM, tools for managing and building source code.
#
# FCM is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# FCM is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with FCM. If not, see <http://www.gnu.org/licenses/>.
#-------------------------------------------------------------------------------
set -eu
if (($# < 1)); then
    echo "Usage: $(basename $0) DEST" >&2
    exit 1
fi
DEST=$1
if [[ -e $DEST ]]; then
    echo "$DEST: destination already exists." >&2
    exit 1
fi
THIS_HOME=$(cd $(dirname $0) && pwd)
WORK_DIR=
function FINALLY() {
    trap '' ERR
    trap '' EXIT
    cd ~
    if [[ -n $WORK_DIR ]]; then
        rm -rf $WORK_DIR
    fi
}
#-------------------------------------------------------------------------------
function rsyncs() {
    rsync -a --exclude=".svn" --checksum "$@"
}
#-------------------------------------------------------------------------------

WORK_DIR=$(mktemp -d)
trap FINALLY ERR
trap FINALLY EXIT
cd $WORK_DIR

svnadmin create repos
REPOS_URL=file://$PWD/repos
svn checkout -q $REPOS_URL working-copy
mkdir -p working-copy/tutorial/{trunk,branches,tags}

# r1
rsyncs $THIS_HOME/trunk-r1/* working-copy/tutorial/trunk/
svn add -q working-copy/tutorial
svn commit -q -m'tutorial: initial import.' working-copy
svn update -q working-copy

# r2
TRUNK_SRC=working-copy/tutorial/trunk/src
svn move -q $TRUNK_SRC/module/hello_num.f90 $TRUNK_SRC/module/hello_number.f90
sed -i 's/Hello World/Hello Earth/' $TRUNK_SRC/module/hello_constants.f90
sed -i 's/Hello World/Hello Earth/' $TRUNK_SRC/subroutine/hello_c.c
svn commit -q -m'tutorial: World=Earth, and correct module name.' working-copy
svn update -q working-copy

rsyncs $THIS_HOME/hooks/* repos/hooks/
curl -o repos/hooks/svnperms.py \
    http://svn.apache.org/repos/asf/subversion/trunk/tools/hook-scripts/svnperms.py
chmod +x repos/hooks/svnperms.py
cat >repos/hooks/svnperms.conf <<__SVNPERMS_CONF__
[$(basename $DEST)]
tutorial/branches/[^/]+/.* = *(add,remove,update)
__SVNPERMS_CONF__
mkdir -p $(dirname $DEST)
svnadmin hotcopy repos $DEST
echo "$DEST: tutorial repository created."
