#!/bin/bash
#  _____               _           _
# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
#                              Freedom in the Cloud
#
# Some things need a recent build of CMake to compile
#
# License
# =======
#
# Copyright (C) 2014-2018 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 {
    # shellcheck disable=SC2154
    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" || exit 678346836
        git pull
    else
        git clone "$CMAKE_REPO" "$rootdir$INSTALL_DIR/cmake"
    fi

    cd "$rootdir$INSTALL_DIR/cmake" || exit 734634684
    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" || exit 36873638
            ./bootstrap
            if ! make; then
                exit 72581
            fi
            make install
        fi
    fi

    if [[ $(is_completed "${FUNCNAME[0]}") == "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 "$INSTALL_DIR/cmake" || exit 374893758
        git pull
    else
        git_clone "$CMAKE_REPO" "$INSTALL_DIR/cmake"
    fi

    cd "$INSTALL_DIR/cmake" || exit 3467384
    git checkout "$CMAKE_COMMIT" -b "$CMAKE_COMMIT"
    ./bootstrap
    if ! make; then
        exit 72581
    fi
    make install

    mark_completed "${FUNCNAME[0]}"
}

# NOTE: deliberately there is no "exit 0"