#!/bin/bash

#

# Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.

#

# This code 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

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.com if you need additional information or have any

# questions.

#

# This script installs the JAB tool into it's own local repository and

# puts a wrapper scripts into <source-root>/.jab

mydir="$(dirname "${BASH_SOURCE[0]}")"

myname="$(basename "${BASH_SOURCE[0]}")"

installed_jab_script=${mydir}/../../.jab/jab

install_data=${mydir}/../../.jab/.data

setup_url() {

    if [ -f "~/.config/jab/jab.conf" ]; then

        source ~/.config/jab/jab.conf

    fi

    jab_repository="jdk-virtual"

    jab_organization="jpg/infra/builddeps"

    jab_module="jab"

    jab_revision="2.0-SNAPSHOT"

    jab_ext="jab.sh.gz"

    closed_script="${mydir}/../../closed/conf/jab-install.conf"

    if [ -f "${closed_script}" ]; then

        source "${closed_script}"

    fi

    if [ -n "${JAB_SERVER}" ]; then

        jab_server="${JAB_SERVER}"

    fi

    if [ -n "${JAB_REPOSITORY}" ]; then

        jab_repository="${JAB_REPOSITORY}"

    fi

    if [ -n "${JAB_ORGANIZATION}" ]; then

        jab_organization="${JAB_ORGANIZATION}"

    fi

    if [ -n "${JAB_MODULE}" ]; then

        jab_module="${JAB_MODULE}"

    fi

    if [ -n "${JAB_REVISION}" ]; then

        jab_revision="${JAB_REVISION}"

    fi

    if [ -n "${JAB_EXTENSION}" ]; then

        jab_extension="${JAB_EXTENSION}"

    fi

    if [ -n "${JAB_URL}" ]; then

        jab_url="${JAB_URL}"

        data_string="${jab_url}"

    else

        data_string="${jab_repository}/${jab_organization}/${jab_module}/${jab_revision}/${jab_module}-${jab_revision}.${jab_ext}"

        jab_url="${jab_server}/${data_string}"

    fi

}

install_jab() {

    if [ -z "${jab_server}" -a -z "${JAB_URL}" ]; then

        echo "No jab server or URL provided, set either"

        echo "JAB_SERVER=<base server address>"

        echo "or"

        echo "JAB_URL=<full path to install script>"

        exit 1

    fi

    if command -v curl > /dev/null; then

        getcmd="curl -s"

    elif command -v wget > /dev/null; then

        getcmd="wget --quiet -O -"

    else

        echo "Could not find either curl or wget"

        exit 1

    fi

    if ! command -v gunzip > /dev/null; then

        echo "Could not find gunzip"

        exit 1

    fi

    echo "Downloading JAB bootstrap script"

    mkdir -p "${installed_jab_script%/*}"

    rm -f "${installed_jab_script}.gz"

    ${getcmd} ${jab_url} > "${installed_jab_script}.gz"

    if [ ! -s "${installed_jab_script}.gz" ]; then

        echo "Failed to download ${jab_url}"

        exit 1

    fi

    echo "Extracting JAB bootstrap script"

    rm -f "${installed_jab_script}"

    gunzip "${installed_jab_script}.gz"

    chmod +x "${installed_jab_script}"

    echo "${data_string}" > "${install_data}"

}

# Main body starts here

setup_url

if [ ! -x "${installed_jab_script}" ]; then

    install_jab

elif [ ! -e "${install_data}" ] || [ "${data_string}" != "$(cat "${install_data}")" ]; then

    echo "Install url changed since last time, reinstalling"

    install_jab

fi

${installed_jab_script} "$@"