#!/bin/bash

#

# Copyright (c) 2015, 2016, 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 JIB tool into it's own local repository and

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

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

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

installed_jib_script=${mydir}/../../.jib/jib

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

setup_url() {

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

        source ~/.config/jib/jib.conf

    fi

    jib_repository="jdk-virtual"

    jib_organization="jpg/infra/builddeps"

    jib_module="jib"

    jib_revision="2.0-SNAPSHOT"

    jib_ext="jib.sh.gz"

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

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

        source "${closed_script}"

    fi

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

        jib_server="${JIB_SERVER}"

    fi

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

        jib_server_mirrors="${JIB_SERVER_MIRRORS}"

    fi

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

        jib_repository="${JIB_REPOSITORY}"

    fi

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

        jib_organization="${JIB_ORGANIZATION}"

    fi

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

        jib_module="${JIB_MODULE}"

    fi

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

        jib_revision="${JIB_REVISION}"

    fi

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

        jib_extension="${JIB_EXTENSION}"

    fi

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

        jib_url="${JIB_URL}"

        data_string="${jib_url}"

    else

        jib_path="${jib_repository}/${jib_organization}/${jib_module}/${jib_revision}/${jib_module}-${jib_revision}.${jib_ext}"

        data_string="${jib_path}"

        jib_url="${jib_server}/${jib_path}"

    fi

}

install_jib() {

    if [ -z "${jib_server}" -a -z "${JIB_URL}" ]; then

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

        echo "JIB_SERVER=<base server address>"

        echo "or"

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

        exit 1

    fi

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

        getcmd="curl -s -L --retry 3 --retry-delay 5"

    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 JIB bootstrap script"

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

    rm -f "${installed_jib_script}.gz"

    ${getcmd} ${jib_url} > "${installed_jib_script}.gz"

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

        echo "Failed to download ${jib_url}"

        if [ -n "${jib_path}" -a -n "${jib_server_mirrors}" ]; then

            OLD_IFS="${IFS}"

            IFS=" ,"

            for mirror in ${jib_server_mirrors}; do

                echo "Trying mirror ${mirror}"

                jib_url="${mirror}/${jib_path}"

                ${getcmd} ${jib_url} > "${installed_jib_script}.gz"

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

                    echo "Download from mirror successful"

                    break

                else

                    echo "Failed to download ${jib_url}"

                fi

            done

            IFS="${OLD_IFS}"

        fi

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

            exit 1

        fi

    fi

    echo "Extracting JIB bootstrap script"

    rm -f "${installed_jib_script}"

    gunzip "${installed_jib_script}.gz"

    chmod +x "${installed_jib_script}"

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

}

# Main body starts here

setup_url

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

    install_jib

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

    echo "Install url changed since last time, reinstalling"

    install_jib

fi

${installed_jib_script} "$@"