#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Some things need a recent build of CMake to compile
#
# License
# =======
#
# Copyright (C) 2014-2016 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

CMAKE_REPO="https://github.com/Kitware/CMake"
CMAKE_COMMIT='d6734eeb875ceca5d810e829ca90541918dca2b4'

function mesh_install_cmake {
    if [ ! -d $rootdir$INSTALL_DIR ]; then
        chroot "$rootdir" mkdir -p $INSTALL_DIR
    fi

    chroot "$rootdir" apt-get -yq install build-essential

    if [ -d /repos/cmake ]; then
        mkdir $rootdir$INSTALL_DIR/cmake
        cp -r -p /repos/cmake/. $rootdir$INSTALL_DIR/cmake
        cd $rootdir$INSTALL_DIR/cmake
        git pull
    else
        git clone $CMAKE_REPO $rootdir$INSTALL_DIR/cmake
    fi

    cd $rootdir$INSTALL_DIR/cmake
    git checkout $CMAKE_COMMIT -b $CMAKE_COMMIT

    cat <<EOF > $rootdir/root/install_cmake
cd $INSTALL_DIR/cmake
./bootstrap
make
if [ ! "$?" = "0" ]; then
    exit 72581
fi
make install
EOF
    chroot "$rootdir" chmod +x /root/install_cmake
    chroot "$rootdir" /root/install_cmake
    chroot "$rootdir" rm /root/install_cmake
}

function install_cmake {
    if [ $INSTALLING_MESH ]; then
        mesh_install_cmake
        return
    fi

    if [ -d $INSTALL_DIR/cmake ]; then
        if ! grep -q "CMake commit:$CMAKE_COMMIT" $COMPLETION_FILE; then
            set_repo_commit $INSTALL_DIR/cmake "CMake commit" "$CMAKE_COMMIT" $CMAKE_REPO
            cd $INSTALL_DIR/cmake
            ./bootstrap
            make
            if [ ! "$?" = "0" ]; then
                exit 72581
            fi
            make install
        fi
    fi

    if [[ $(is_completed $FUNCNAME) == "1" ]]; then
        return
    fi

    if [ ! -d $INSTALL_DIR ]; then
        mkdir -p $INSTALL_DIR
    fi

    apt-get -yq install build-essential

    if [ -d /repos/cmake ]; then
        mkdir $INSTALL_DIR/cmake
        cp -r -p /repos/cmake/. $INSTALL_DIR/cmake
        cd $INSTALL_DIR/cmake
        git pull
    else
        git_clone $CMAKE_REPO $INSTALL_DIR/cmake
    fi

    cd $INSTALL_DIR/cmake
    git checkout $CMAKE_COMMIT -b $CMAKE_COMMIT
    ./bootstrap
    make
    if [ ! "$?" = "0" ]; then
        exit 72581
    fi
    make install

    mark_completed $FUNCNAME
}

# NOTE: deliberately there is no "exit 0"