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#!/bin/bash

#############################################################################
##
## Copyright (C) 2017 The Qt Company Ltd.
## Contact: http://www.qt.io/licensing/
##
## This file is part of the provisioning scripts of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:LGPL21$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see http://www.qt.io/terms-conditions. For further
## information use the contact form at http://www.qt.io/contact-us.
##
## GNU Lesser General Public License Usage
## Alternatively, this file may be used under the terms of the GNU Lesser
## General Public License version 2.1 or version 3 as published by the Free
## Software Foundation and appearing in the file LICENSE.LGPLv21 and
## LICENSE.LGPLv3 included in the packaging of this file. Please review the
## following information to ensure the GNU Lesser General Public License
## requirements will be met: https://www.gnu.org/licenses/lgpl.html and
## http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## As a special exception, The Qt Company gives you certain additional
## rights. These rights are described in The Qt Company LGPL Exception
## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
##
## $QT_END_LICENSE$
##
#############################################################################

# shellcheck source=try_catch.sh
source "${BASH_SOURCE%/*}/try_catch.sh"

ExceptionCreateTmpFile=100
ExceptionDownloadPrimaryUrl=101
ExceptionDownloadAltUrl=102
ExceptionSHA1=103
ExceptionInstallerPKG=104
ExceptionDeleteTmpFile=105


function InstallPKGFromURL {
    url=$1
    url_alt=$2
    expectedSha1=$3
    targetDirectory=$4

    try
    (
        echo "Creating temporary file"
        targetFile=$(mktemp "$TMPDIR$(uuidgen).pkg") || trow $ExceptionCreateTmpFile
        try
        (
            echo "Downloading PKG from primary URL '$url'"
            curl --fail -L --retry 5 --retry-delay 5 -o "$targetFile" "$url" || throw $ExceptionDownloadPrimaryUrl
        )
        catch || {
            case $ex_code in
                $ExceptionDownloadPrimaryUrl)
                    echo "Failed to download '$url' multiple times"
                    echo "Downloading PKG from alternative URL '$url_alt'"
                    curl --fail -L --retry 5 --retry-delay 5 -o "$targetFile" "$url_alt" || throw $ExceptionDownloadAltUrl
                ;;
            esac
        }
        echo "Checking SHA1 on PKG '$targetFile'"
        echo "$expectedSha1 *$targetFile" | /usr/bin/shasum --check || throw $ExceptionSHA1
        echo "Run installer on PKG"
        sudo installer -package "$targetFile" -target "$targetDirectory" || throw $ExceptionInstallerPKG
        echo "Removing file '$targetFile'"
        rm "$targetFile" || throw $ExceptionDeleteTmpFile
    )

    catch || {
        case $ex_code in
            $ExceptionCreateTmpFile)
                echo "Failed to create temporary file"
                exit 1;
            ;;
            $ExceptionDownloadAltUrl)
                echo "Failed downloading PKG from primary and alternative URLs"
                exit 1;
            ;;
            $ExceptionSHA1)
                echo "Failed to check sha1sum."
                exit 1;
            ;;
            $ExceptionInstallerPKG)
                echo "Failed running installer on PKG."
                exit 1;
            ;;
            $ExceptionDeleteTmpFile)
                echo "Failed deleting temporary file."
                exit 1;
            ;;
        esac
    }
}