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199
Samples/PixelStreaming2/WebServers/get_ps_servers.sh
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199
Samples/PixelStreaming2/WebServers/get_ps_servers.sh
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#!/bin/bash
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# Copyright Epic Games, Inc. All Rights Reserved.
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BASH_LOCATION="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
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pushd "${BASH_LOCATION}" > /dev/null
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print_help() {
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echo "
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Tool for fetching PixelStreaming Infrastructure. If no flags are set specifying a version to fetch,
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the recommended version will be chosen as a default.
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Usage:
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${0} [-h] [-v <UE version>] [-b <branch>] [-t <tag>]
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Where:
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-v Specify a version of Unreal Engine to download the recommended
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release for
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-b Specify a specific branch for the tool to download from repo
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-t Specify a specific tag for the tool to download from repo
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-r Specify a specific release url path e.g. https://github.com/EpicGamesExt/PixelStreamingInfrastructure/releases/download/<RELEASE_VERSION>/<RELEASE_VERSION>.zip
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-h Display this help message
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"
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exit 1
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}
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# Set all default variables (e.g. # Name and version of ps-infra that we are downloading)
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PSInfraOrg=EpicGamesExt
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PSInfraRepo=PixelStreamingInfrastructure
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PSInfraTagOrBranch=UE5.7
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RefType=heads
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IsTag=0
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ReleaseUrlBase=https://github.com/EpicGamesExt/PixelStreamingInfrastructure/releases/download
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# Unset any variables that don't have defaults that we use that may have persisted between bash terminals.
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unset Url
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unset DownloadVersion
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unset FlagPassed
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unset ReleaseVersion
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unset ReleaseUrl
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while (($#)) ; do
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case "$1" in
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-h ) print_help;;
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-v ) UEVersion="$2"; FlagPassed=1; shift 2;;
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-b ) PSInfraTagOrBranch="$2"; FlagPassed=1; IsTag=0; shift 2;;
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-t ) PSInfraTagOrBranch="$2"; FlagPassed=1; IsTag=1; shift 2;;
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-r ) ReleaseVersion="$2"; FlagPassed=1; IsTag=0; ReleaseUrl=$ReleaseUrlBase/$ReleaseVersion/$ReleaseVersion.tar.gz; shift 2;;
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* ) echo "Unknown command: $1"; shift;;
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esac
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done
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# If a UE version is supplied set the right branch or tag to fetch for that version of UE
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if [ ! -z "$UEVersion" ]
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then
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if [ "$UEVersion" = "4.26" ]
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then
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PSInfraTagOrBranch=UE4.26
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IsTag=0
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fi
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if [ "$UEVersion" = "4.27" ]
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then
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PSInfraTagOrBranch=UE4.27
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IsTag=0
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fi
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if [ "$UEVersion" = "5.0" ]
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then
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PSInfraTagOrBranch=UE5.0
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IsTag=0
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fi
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if [ "$UEVersion" = "5.1" ]
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then
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PSInfraTagOrBranch=UE5.1
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IsTag=0
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fi
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if [ "$UEVersion" = "5.2" ]
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then
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PSInfraTagOrBranch=UE5.2
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IsTag=0
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fi
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if [ "$UEVersion" = "5.3" ]
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then
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PSInfraTagOrBranch=UE5.3
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IsTag=0
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fi
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if [ "$UEVersion" = "5.4" ]
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then
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PSInfraTagOrBranch=UE5.4
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IsTag=0
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fi
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if [ "$UEVersion" = "5.5" ]
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then
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PSInfraTagOrBranch=UE5.5
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IsTag=0
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fi
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if [ "$UEVersion" = "5.6" ]
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then
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PSInfraTagOrBranch=UE5.6
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IsTag=0
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fi
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if [ "$UEVersion" = "5.7" ]
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then
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PSInfraTagOrBranch=UE5.7
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IsTag=0
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fi
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fi
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# If no arguments select a specific version, fetch the appropriate default
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if [ -z "$PSInfraTagOrBranch" ]
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then
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PSInfraTagOrBranch=UE5.7
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IsTag=0
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fi
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echo "Tag or branch: $PSInfraTagOrBranch"
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# Whether the named reference is a tag or a branch affects the Url we fetch it on
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if [ "$IsTag" -eq 1 ]
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then
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RefType=tags
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else
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RefType=heads
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fi
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# We have a branch, no user-specified release, then check repo for the presence of a RELEASE_VERSION file in the current branch.
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if [ "$IsTag" -eq 0 ] && [ -z "$ReleaseUrl" ] && [ -z "$FlagPassed" ]
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then
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RelUrl=https://raw.githubusercontent.com/EpicGamesExt/PixelStreamingInfrastructure/$PSInfraTagOrBranch/RELEASE_VERSION
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if curl --output /dev/null --silent -r 0-0 --fail "$RelUrl"; then
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ReleaseVersion="$PSInfraTagOrBranch-$(curl -L -s $RelUrl)"
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ReleaseUrl=https://github.com/EpicGamesExt/PixelStreamingInfrastructure/releases/download/$ReleaseVersion/$ReleaseVersion.tar.gz
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echo "Valid RELEASE_VERSION file found in Github repo at $RelUrl"
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else
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echo "RELEASE_VERSION file does not exist at: $RelUrl"
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fi
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else
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echo "Skipping downloading RELEASE_VERSION file."
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fi
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#Set our DownloadVersion here as we use this to check the contents of our DOWNLOAD_VERSION file shortly.
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DownloadVersion="$PSInfraTagOrBranch"
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if [ ! -z "$ReleaseVersion" ]
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then
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DownloadVersion="$ReleaseVersion"
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echo "Release: $ReleaseVersion"
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fi
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#Rem Check for the existence of a DOWNLOAD_VERSION file and if found, check its contents against our $DownloadVersion
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if test -f DOWNLOAD_VERSION;
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then
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PREVIOUS_DOWNLOAD_VERSION=$(cat DOWNLOAD_VERSION)
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if [ "$DownloadVersion" = "$PREVIOUS_DOWNLOAD_VERSION" ]
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then
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echo "Downloaded version ($DownloadVersion) of PS infra matches release version ($PREVIOUS_DOWNLOAD_VERSION)...skipping install."
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exit 0
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else
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echo "There is a newer released version ($DownloadVersion) - had ($PREVIOUS_DOWNLOAD_VERSION), downloading..."
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#Remove old infra
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rm -rf Frontend
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rm -rf Matchmaker
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rm -rf SignallingWebServer
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rm -rf SFU
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fi
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else
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echo "DOWNLOAD_VERSION file not found..."
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fi
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# Pre-download - Set the download url to the .zip of the branch
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Url=https://github.com/$PSInfraOrg/$PSInfraRepo/archive/refs/$RefType/$PSInfraTagOrBranch.tar.gz
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#Check if ReleaseUrl is valid by CURLing with fail fast and if success then set it to our download url
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if [ ! -z "$ReleaseUrl" ]
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then
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echo "Checking if release url is valid, url: $ReleaseUrl"
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if curl --output /dev/null --silent -r 0-0 --fail "$ReleaseUrl"; then
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echo "Valid release url at: $ReleaseUrl"
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Url=$ReleaseUrl
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else
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echo "Invalid Github release url: $ReleaseUrl"
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exit 1
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fi
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fi
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# Download - download ps-infra and follow redirects.
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echo "Beginning ps-infra download from: $Url"
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curl -L $Url > ps-infra.tar.gz
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# Unarchive the .tar
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tar -xmf ps-infra.tar.gz || $(echo "bad archive, contents:" && head --lines=20 ps-infra.tar.gz && exit 0)
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# Move the server folders into the current directory (WebServers) and delete the original directory
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mv PixelStreamingInfrastructure-*/* .
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# Copy any files and folders beginning with dot (ignored by * glob) and discard errors regarding to not being able to move "." and ".."
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mv PixelStreamingInfrastructure-*/.* . 2>/dev/null || :
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rm -rf PixelStreamingInfrastructure-*
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# Delete the downloaded tar
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rm ps-infra.tar.gz
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#Create a DOWNLOAD_VERSION file, which we use as a comparison file to check if we should auto upgrade when these scripts are run again
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echo "$DownloadVersion" >| DOWNLOAD_VERSION
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exit 0
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