Update dependencies from https://github.com/dotnet/arcade build 20200903.7 (#1473)

[master] Update dependencies from dotnet/arcade
- Updates:
  - Microsoft.DotNet.Arcade.Sdk: from 5.0.0-beta.20427.5 to 5.0.0-beta.20453.7
  - Microsoft.DotNet.ApiCompat: from 5.0.0-beta.20427.5 to 5.0.0-beta.20453.7

13 files changed, 2012 insertions, 64 deletions

diff --git a/eng/common/build.ps1 b/eng/common/build.ps1
index 94a91c081..1fd7f686f 100644
--- a/eng/common/build.ps1
+++ b/eng/common/build.ps1
@@ -7,6 +7,7 @@ Param(
   [string] $msbuildEngine = $null,
   [bool] $warnAsError = $true,
   [bool] $nodeReuse = $true,
+  [bool] $useDefaultDotnetInstall = $false,
   [switch][Alias('r')]$restore,
   [switch] $deployDeps,
   [switch][Alias('b')]$build,
@@ -65,6 +66,7 @@ function Print-Usage() {
   Write-Host "  -prepareMachine         Prepare machine for CI run, clean up processes after build"
   Write-Host "  -warnAsError <value>    Sets warnaserror msbuild parameter ('true' or 'false')"
   Write-Host "  -msbuildEngine <value>  Msbuild engine to use to run build ('dotnet', 'vs', or unspecified)."
+  Write-Host "  -useDefaultDotnetInstall <value> Use dotnet-install.* scripts from public location as opposed to from eng common folder"
   Write-Host ""
 
   Write-Host "Command line arguments not listed above are passed thru to msbuild."
diff --git a/eng/common/build.sh b/eng/common/build.sh
index 252b63604..19849adbe 100755
--- a/eng/common/build.sh
+++ b/eng/common/build.sh
@@ -36,6 +36,8 @@ usage()
   echo "  --prepareMachine         Prepare machine for CI run, clean up processes after build"
   echo "  --nodeReuse <value>      Sets nodereuse msbuild parameter ('true' or 'false')"
   echo "  --warnAsError <value>    Sets warnaserror msbuild parameter ('true' or 'false')"
+  echo "  --useDefaultDotnetInstall <value> Use dotnet-install.* scripts from public location as opposed to from eng common folder"
+  
   echo ""
   echo "Command line arguments not listed above are passed thru to msbuild."
   echo "Arguments can also be passed in with a single hyphen."
@@ -78,6 +80,7 @@ prepare_machine=false
 verbosity='minimal'
 runtime_source_feed=''
 runtime_source_feed_key=''
+use_default_dotnet_install=false
 
 properties=''
 while [[ $# > 0 ]]; do
@@ -156,10 +159,14 @@ while [[ $# > 0 ]]; do
       runtime_source_feed=$2
       shift
       ;;
-     -runtimesourcefeedkey)
+    -runtimesourcefeedkey)
       runtime_source_feed_key=$2
       shift
       ;;
+    -usedefaultdotnetinstall)
+      use_default_dotnet_install=$2
+      shift
+      ;;
     *)
       properties="$properties $1"
       ;;
diff --git a/eng/common/dotnet-install-scripts/dotnet-install.ps1 b/eng/common/dotnet-install-scripts/dotnet-install.ps1
new file mode 100644
index 000000000..f63b533f2
--- /dev/null
+++ b/eng/common/dotnet-install-scripts/dotnet-install.ps1
@@ -0,0 +1,774 @@
+#
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+# Copied from https://dot.net/v1/dotnet-install.ps1 on 8/26/2020
+
+<#
+.SYNOPSIS
+    Installs dotnet cli
+.DESCRIPTION
+    Installs dotnet cli. If dotnet installation already exists in the given directory
+    it will update it only if the requested version differs from the one already installed.
+.PARAMETER Channel
+    Default: LTS
+    Download from the Channel specified. Possible values:
+    - Current - most current release
+    - LTS - most current supported release
+    - 2-part version in a format A.B - represents a specific release
+          examples: 2.0, 1.0
+    - Branch name
+          examples: release/2.0.0, Master
+    Note: The version parameter overrides the channel parameter.
+.PARAMETER Version
+    Default: latest
+    Represents a build version on specific channel. Possible values:
+    - latest - most latest build on specific channel
+    - coherent - most latest coherent build on specific channel
+          coherent applies only to SDK downloads
+    - 3-part version in a format A.B.C - represents specific version of build
+          examples: 2.0.0-preview2-006120, 1.1.0
+.PARAMETER InstallDir
+    Default: %LocalAppData%\Microsoft\dotnet
+    Path to where to install dotnet. Note that binaries will be placed directly in a given directory.
+.PARAMETER Architecture
+    Default: <auto> - this value represents currently running OS architecture
+    Architecture of dotnet binaries to be installed.
+    Possible values are: <auto>, amd64, x64, x86, arm64, arm
+.PARAMETER SharedRuntime
+    This parameter is obsolete and may be removed in a future version of this script.
+    The recommended alternative is '-Runtime dotnet'.
+    Installs just the shared runtime bits, not the entire SDK.
+.PARAMETER Runtime
+    Installs just a shared runtime, not the entire SDK.
+    Possible values:
+        - dotnet     - the Microsoft.NETCore.App shared runtime
+        - aspnetcore - the Microsoft.AspNetCore.App shared runtime
+        - windowsdesktop - the Microsoft.WindowsDesktop.App shared runtime
+.PARAMETER DryRun
+    If set it will not perform installation but instead display what command line to use to consistently install
+    currently requested version of dotnet cli. In example if you specify version 'latest' it will display a link
+    with specific version so that this command can be used deterministicly in a build script.
+    It also displays binaries location if you prefer to install or download it yourself.
+.PARAMETER NoPath
+    By default this script will set environment variable PATH for the current process to the binaries folder inside installation folder.
+    If set it will display binaries location but not set any environment variable.
+.PARAMETER Verbose
+    Displays diagnostics information.
+.PARAMETER AzureFeed
+    Default: https://dotnetcli.azureedge.net/dotnet
+    This parameter typically is not changed by the user.
+    It allows changing the URL for the Azure feed used by this installer.
+.PARAMETER UncachedFeed
+    This parameter typically is not changed by the user.
+    It allows changing the URL for the Uncached feed used by this installer.
+.PARAMETER FeedCredential
+    Used as a query string to append to the Azure feed.
+    It allows changing the URL to use non-public blob storage accounts.
+.PARAMETER ProxyAddress
+    If set, the installer will use the proxy when making web requests
+.PARAMETER ProxyUseDefaultCredentials
+    Default: false
+    Use default credentials, when using proxy address.
+.PARAMETER ProxyBypassList
+    If set with ProxyAddress, will provide the list of comma separated urls that will bypass the proxy
+.PARAMETER SkipNonVersionedFiles
+    Default: false
+    Skips installing non-versioned files if they already exist, such as dotnet.exe.
+.PARAMETER NoCdn
+    Disable downloading from the Azure CDN, and use the uncached feed directly.
+.PARAMETER JSonFile
+    Determines the SDK version from a user specified global.json file
+    Note: global.json must have a value for 'SDK:Version'
+#>
+[cmdletbinding()]
+param(
+   [string]$Channel="LTS",
+   [string]$Version="Latest",
+   [string]$JSonFile,
+   [string]$InstallDir="<auto>",
+   [string]$Architecture="<auto>",
+   [ValidateSet("dotnet", "aspnetcore", "windowsdesktop", IgnoreCase = $false)]
+   [string]$Runtime,
+   [Obsolete("This parameter may be removed in a future version of this script. The recommended alternative is '-Runtime dotnet'.")]
+   [switch]$SharedRuntime,
+   [switch]$DryRun,
+   [switch]$NoPath,
+   [string]$AzureFeed="https://dotnetcli.azureedge.net/dotnet",
+   [string]$UncachedFeed="https://dotnetcli.blob.core.windows.net/dotnet",
+   [string]$FeedCredential,
+   [string]$ProxyAddress,
+   [switch]$ProxyUseDefaultCredentials,
+   [string[]]$ProxyBypassList=@(),
+   [switch]$SkipNonVersionedFiles,
+   [switch]$NoCdn
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference="Stop"
+$ProgressPreference="SilentlyContinue"
+
+if ($NoCdn) {
+    $AzureFeed = $UncachedFeed
+}
+
+$BinFolderRelativePath=""
+
+if ($SharedRuntime -and (-not $Runtime)) {
+    $Runtime = "dotnet"
+}
+
+# example path with regex: shared/1.0.0-beta-12345/somepath
+$VersionRegEx="/\d+\.\d+[^/]+/"
+$OverrideNonVersionedFiles = !$SkipNonVersionedFiles
+
+function Say($str) {
+    try
+    {
+        Write-Host "dotnet-install: $str"
+    }
+    catch
+    {
+        # Some platforms cannot utilize Write-Host (Azure Functions, for instance). Fall back to Write-Output
+        Write-Output "dotnet-install: $str"
+    }
+}
+
+function Say-Verbose($str) {
+    try
+    {
+        Write-Verbose "dotnet-install: $str"
+    }
+    catch
+    {
+        # Some platforms cannot utilize Write-Verbose (Azure Functions, for instance). Fall back to Write-Output
+        Write-Output "dotnet-install: $str"
+    }
+}
+
+function Say-Invocation($Invocation) {
+    $command = $Invocation.MyCommand;
+    $args = (($Invocation.BoundParameters.Keys | foreach { "-$_ `"$($Invocation.BoundParameters[$_])`"" }) -join " ")
+    Say-Verbose "$command $args"
+}
+
+function Invoke-With-Retry([ScriptBlock]$ScriptBlock, [int]$MaxAttempts = 3, [int]$SecondsBetweenAttempts = 1) {
+    $Attempts = 0
+
+    while ($true) {
+        try {
+            return $ScriptBlock.Invoke()
+        }
+        catch {
+            $Attempts++
+            if ($Attempts -lt $MaxAttempts) {
+                Start-Sleep $SecondsBetweenAttempts
+            }
+            else {
+                throw
+            }
+        }
+    }
+}
+
+function Get-Machine-Architecture() {
+    Say-Invocation $MyInvocation
+
+    # On PS x86, PROCESSOR_ARCHITECTURE reports x86 even on x64 systems.
+    # To get the correct architecture, we need to use PROCESSOR_ARCHITEW6432.
+    # PS x64 doesn't define this, so we fall back to PROCESSOR_ARCHITECTURE.
+    # Possible values: amd64, x64, x86, arm64, arm
+
+    if( $ENV:PROCESSOR_ARCHITEW6432 -ne $null )
+    {    
+        return $ENV:PROCESSOR_ARCHITEW6432
+    }
+
+    return $ENV:PROCESSOR_ARCHITECTURE
+}
+
+function Get-CLIArchitecture-From-Architecture([string]$Architecture) {
+    Say-Invocation $MyInvocation
+
+    switch ($Architecture.ToLower()) {
+        { $_ -eq "<auto>" } { return Get-CLIArchitecture-From-Architecture $(Get-Machine-Architecture) }
+        { ($_ -eq "amd64") -or ($_ -eq "x64") } { return "x64" }
+        { $_ -eq "x86" } { return "x86" }
+        { $_ -eq "arm" } { return "arm" }
+        { $_ -eq "arm64" } { return "arm64" }
+        default { throw "Architecture not supported. If you think this is a bug, report it at https://github.com/dotnet/sdk/issues" }
+    }
+}
+
+# The version text returned from the feeds is a 1-line or 2-line string:
+# For the SDK and the dotnet runtime (2 lines):
+# Line 1: # commit_hash
+# Line 2: # 4-part version
+# For the aspnetcore runtime (1 line):
+# Line 1: # 4-part version
+function Get-Version-Info-From-Version-Text([string]$VersionText) {
+    Say-Invocation $MyInvocation
+
+    $Data = -split $VersionText
+
+    $VersionInfo = @{
+        CommitHash = $(if ($Data.Count -gt 1) { $Data[0] })
+        Version = $Data[-1] # last line is always the version number.
+    }
+    return $VersionInfo
+}
+
+function Load-Assembly([string] $Assembly) {
+    try {
+        Add-Type -Assembly $Assembly | Out-Null
+    }
+    catch {
+        # On Nano Server, Powershell Core Edition is used.  Add-Type is unable to resolve base class assemblies because they are not GAC'd.
+        # Loading the base class assemblies is not unnecessary as the types will automatically get resolved.
+    }
+}
+
+function GetHTTPResponse([Uri] $Uri)
+{
+    Invoke-With-Retry(
+    {
+
+        $HttpClient = $null
+
+        try {
+            # HttpClient is used vs Invoke-WebRequest in order to support Nano Server which doesn't support the Invoke-WebRequest cmdlet.
+            Load-Assembly -Assembly System.Net.Http
+
+            if(-not $ProxyAddress) {
+                try {
+                    # Despite no proxy being explicitly specified, we may still be behind a default proxy
+                    $DefaultProxy = [System.Net.WebRequest]::DefaultWebProxy;
+                    if($DefaultProxy -and (-not $DefaultProxy.IsBypassed($Uri))) {
+                        $ProxyAddress = $DefaultProxy.GetProxy($Uri).OriginalString
+                        $ProxyUseDefaultCredentials = $true
+                    }
+                } catch {
+                    # Eat the exception and move forward as the above code is an attempt
+                    #    at resolving the DefaultProxy that may not have been a problem.
+                    $ProxyAddress = $null
+                    Say-Verbose("Exception ignored: $_.Exception.Message - moving forward...")
+                }
+            }
+
+            if($ProxyAddress) {
+                $HttpClientHandler = New-Object System.Net.Http.HttpClientHandler
+                $HttpClientHandler.Proxy =  New-Object System.Net.WebProxy -Property @{
+                    Address=$ProxyAddress;
+                    UseDefaultCredentials=$ProxyUseDefaultCredentials;
+                    BypassList = $ProxyBypassList;
+                }
+                $HttpClient = New-Object System.Net.Http.HttpClient -ArgumentList $HttpClientHandler
+            }
+            else {
+
+                $HttpClient = New-Object System.Net.Http.HttpClient
+            }
+            # Default timeout for HttpClient is 100s.  For a 50 MB download this assumes 500 KB/s average, any less will time out
+            # 20 minutes allows it to work over much slower connections.
+            $HttpClient.Timeout = New-TimeSpan -Minutes 20
+            $Response = $HttpClient.GetAsync("${Uri}${FeedCredential}").Result
+            if (($Response -eq $null) -or (-not ($Response.IsSuccessStatusCode))) {
+                 # The feed credential is potentially sensitive info. Do not log FeedCredential to console output.
+                $ErrorMsg = "Failed to download $Uri."
+                if ($Response -ne $null) {
+                    $ErrorMsg += "  $Response"
+                }
+
+                throw $ErrorMsg
+            }
+
+             return $Response
+        }
+        finally {
+             if ($HttpClient -ne $null) {
+                $HttpClient.Dispose()
+            }
+        }
+    })
+}
+
+function Get-Latest-Version-Info([string]$AzureFeed, [string]$Channel, [bool]$Coherent) {
+    Say-Invocation $MyInvocation
+
+    $VersionFileUrl = $null
+    if ($Runtime -eq "dotnet") {
+        $VersionFileUrl = "$UncachedFeed/Runtime/$Channel/latest.version"
+    }
+    elseif ($Runtime -eq "aspnetcore") {
+        $VersionFileUrl = "$UncachedFeed/aspnetcore/Runtime/$Channel/latest.version"
+    }
+    # Currently, the WindowsDesktop runtime is manufactured with the .Net core runtime
+    elseif ($Runtime -eq "windowsdesktop") {
+        $VersionFileUrl = "$UncachedFeed/Runtime/$Channel/latest.version"
+    }
+    elseif (-not $Runtime) {
+        if ($Coherent) {
+            $VersionFileUrl = "$UncachedFeed/Sdk/$Channel/latest.coherent.version"
+        }
+        else {
+            $VersionFileUrl = "$UncachedFeed/Sdk/$Channel/latest.version"
+        }
+    }
+    else {
+        throw "Invalid value for `$Runtime"
+    }
+    try {
+        $Response = GetHTTPResponse -Uri $VersionFileUrl
+    }
+    catch {
+        throw "Could not resolve version information."
+    }
+    $StringContent = $Response.Content.ReadAsStringAsync().Result
+
+    switch ($Response.Content.Headers.ContentType) {
+        { ($_ -eq "application/octet-stream") } { $VersionText = $StringContent }
+        { ($_ -eq "text/plain") } { $VersionText = $StringContent }
+        { ($_ -eq "text/plain; charset=UTF-8") } { $VersionText = $StringContent }
+        default { throw "``$Response.Content.Headers.ContentType`` is an unknown .version file content type." }
+    }
+
+    $VersionInfo = Get-Version-Info-From-Version-Text $VersionText
+
+    return $VersionInfo
+}
+
+function Parse-Jsonfile-For-Version([string]$JSonFile) {
+    Say-Invocation $MyInvocation
+
+    If (-Not (Test-Path $JSonFile)) {
+        throw "Unable to find '$JSonFile'"
+    }
+    try {
+        $JSonContent = Get-Content($JSonFile) -Raw | ConvertFrom-Json | Select-Object -expand "sdk" -ErrorAction SilentlyContinue
+    }
+    catch {
+        throw "Json file unreadable: '$JSonFile'"
+    }
+    if ($JSonContent) {
+        try {
+            $JSonContent.PSObject.Properties | ForEach-Object {
+                $PropertyName = $_.Name
+                if ($PropertyName -eq "version") {
+                    $Version = $_.Value
+                    Say-Verbose "Version = $Version"
+                }
+            }
+        }
+        catch {
+            throw "Unable to parse the SDK node in '$JSonFile'"
+        }
+    }
+    else {
+        throw "Unable to find the SDK node in '$JSonFile'"
+    }
+    If ($Version -eq $null) {
+        throw "Unable to find the SDK:version node in '$JSonFile'"
+    }
+    return $Version
+}
+
+function Get-Specific-Version-From-Version([string]$AzureFeed, [string]$Channel, [string]$Version, [string]$JSonFile) {
+    Say-Invocation $MyInvocation
+
+    if (-not $JSonFile) {
+        switch ($Version.ToLower()) {
+            { $_ -eq "latest" } {
+                $LatestVersionInfo = Get-Latest-Version-Info -AzureFeed $AzureFeed -Channel $Channel -Coherent $False
+                return $LatestVersionInfo.Version
+            }
+            { $_ -eq "coherent" } {
+                $LatestVersionInfo = Get-Latest-Version-Info -AzureFeed $AzureFeed -Channel $Channel -Coherent $True
+                return $LatestVersionInfo.Version
+            }
+            default { return $Version }
+        }
+    }
+    else {
+        return Parse-Jsonfile-For-Version $JSonFile
+    }
+}
+
+function Get-Download-Link([string]$AzureFeed, [string]$SpecificVersion, [string]$CLIArchitecture) {
+    Say-Invocation $MyInvocation
+
+    # If anything fails in this lookup it will default to $SpecificVersion
+    $SpecificProductVersion = Get-Product-Version -AzureFeed $AzureFeed -SpecificVersion $SpecificVersion
+
+    if ($Runtime -eq "dotnet") {
+        $PayloadURL = "$AzureFeed/Runtime/$SpecificVersion/dotnet-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
+    }
+    elseif ($Runtime -eq "aspnetcore") {
+        $PayloadURL = "$AzureFeed/aspnetcore/Runtime/$SpecificVersion/aspnetcore-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
+    }
+    elseif ($Runtime -eq "windowsdesktop") {
+        $PayloadURL = "$AzureFeed/Runtime/$SpecificVersion/windowsdesktop-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
+    }
+    elseif (-not $Runtime) {
+        $PayloadURL = "$AzureFeed/Sdk/$SpecificVersion/dotnet-sdk-$SpecificProductVersion-win-$CLIArchitecture.zip"
+    }
+    else {
+        throw "Invalid value for `$Runtime"
+    }
+
+    Say-Verbose "Constructed primary named payload URL: $PayloadURL"
+
+    return $PayloadURL, $SpecificProductVersion
+}
+
+function Get-LegacyDownload-Link([string]$AzureFeed, [string]$SpecificVersion, [string]$CLIArchitecture) {
+    Say-Invocation $MyInvocation
+
+    if (-not $Runtime) {
+        $PayloadURL = "$AzureFeed/Sdk/$SpecificVersion/dotnet-dev-win-$CLIArchitecture.$SpecificVersion.zip"
+    }
+    elseif ($Runtime -eq "dotnet") {
+        $PayloadURL = "$AzureFeed/Runtime/$SpecificVersion/dotnet-win-$CLIArchitecture.$SpecificVersion.zip"
+    }
+    else {
+        return $null
+    }
+
+    Say-Verbose "Constructed legacy named payload URL: $PayloadURL"
+
+    return $PayloadURL
+}
+
+function Get-Product-Version([string]$AzureFeed, [string]$SpecificVersion) {
+    Say-Invocation $MyInvocation
+
+    if ($Runtime -eq "dotnet") {
+        $ProductVersionTxtURL = "$AzureFeed/Runtime/$SpecificVersion/productVersion.txt"
+    }
+    elseif ($Runtime -eq "aspnetcore") {
+        $ProductVersionTxtURL = "$AzureFeed/aspnetcore/Runtime/$SpecificVersion/productVersion.txt"
+    }
+    elseif ($Runtime -eq "windowsdesktop") {
+        $ProductVersionTxtURL = "$AzureFeed/Runtime/$SpecificVersion/productVersion.txt"
+    }
+    elseif (-not $Runtime) {
+        $ProductVersionTxtURL = "$AzureFeed/Sdk/$SpecificVersion/productVersion.txt"
+    }
+    else {
+        throw "Invalid value specified for `$Runtime"
+    }
+
+    Say-Verbose "Checking for existence of $ProductVersionTxtURL"
+
+    try {
+        $productVersionResponse = GetHTTPResponse($productVersionTxtUrl)
+
+        if ($productVersionResponse.StatusCode -eq 200) {
+            $productVersion = $productVersionResponse.Content.ReadAsStringAsync().Result.Trim()
+            if ($productVersion -ne $SpecificVersion)
+            {
+                Say "Using alternate version $productVersion found in $ProductVersionTxtURL"
+            }
+
+            return $productVersion
+        }
+        else {
+            Say-Verbose "Got StatusCode $($productVersionResponse.StatusCode) trying to get productVersion.txt at $productVersionTxtUrl, so using default value of $SpecificVersion"
+            $productVersion = $SpecificVersion
+        }
+    } catch {
+        Say-Verbose "Could not read productVersion.txt at $productVersionTxtUrl, so using default value of $SpecificVersion"
+        $productVersion = $SpecificVersion
+    }
+
+    return $productVersion
+}
+
+function Get-User-Share-Path() {
+    Say-Invocation $MyInvocation
+
+    $InstallRoot = $env:DOTNET_INSTALL_DIR
+    if (!$InstallRoot) {
+        $InstallRoot = "$env:LocalAppData\Microsoft\dotnet"
+    }
+    return $InstallRoot
+}
+
+function Resolve-Installation-Path([string]$InstallDir) {
+    Say-Invocation $MyInvocation
+
+    if ($InstallDir -eq "<auto>") {
+        return Get-User-Share-Path
+    }
+    return $InstallDir
+}
+
+function Is-Dotnet-Package-Installed([string]$InstallRoot, [string]$RelativePathToPackage, [string]$SpecificVersion) {
+    Say-Invocation $MyInvocation
+
+    $DotnetPackagePath = Join-Path -Path $InstallRoot -ChildPath $RelativePathToPackage | Join-Path -ChildPath $SpecificVersion
+    Say-Verbose "Is-Dotnet-Package-Installed: DotnetPackagePath=$DotnetPackagePath"
+    return Test-Path $DotnetPackagePath -PathType Container
+}
+
+function Get-Absolute-Path([string]$RelativeOrAbsolutePath) {
+    # Too much spam
+    # Say-Invocation $MyInvocation
+
+    return $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($RelativeOrAbsolutePath)
+}
+
+function Get-Path-Prefix-With-Version($path) {
+    $match = [regex]::match($path, $VersionRegEx)
+    if ($match.Success) {
+        return $entry.FullName.Substring(0, $match.Index + $match.Length)
+    }
+
+    return $null
+}
+
+function Get-List-Of-Directories-And-Versions-To-Unpack-From-Dotnet-Package([System.IO.Compression.ZipArchive]$Zip, [string]$OutPath) {
+    Say-Invocation $MyInvocation
+
+    $ret = @()
+    foreach ($entry in $Zip.Entries) {
+        $dir = Get-Path-Prefix-With-Version $entry.FullName
+        if ($dir -ne $null) {
+            $path = Get-Absolute-Path $(Join-Path -Path $OutPath -ChildPath $dir)
+            if (-Not (Test-Path $path -PathType Container)) {
+                $ret += $dir
+            }
+        }
+    }
+
+    $ret = $ret | Sort-Object | Get-Unique
+
+    $values = ($ret | foreach { "$_" }) -join ";"
+    Say-Verbose "Directories to unpack: $values"
+
+    return $ret
+}
+
+# Example zip content and extraction algorithm:
+# Rule: files if extracted are always being extracted to the same relative path locally
+# .\
+#       a.exe   # file does not exist locally, extract
+#       b.dll   # file exists locally, override only if $OverrideFiles set
+#       aaa\    # same rules as for files
+#           ...
+#       abc\1.0.0\  # directory contains version and exists locally
+#           ...     # do not extract content under versioned part
+#       abc\asd\    # same rules as for files
+#            ...
+#       def\ghi\1.0.1\  # directory contains version and does not exist locally
+#           ...         # extract content
+function Extract-Dotnet-Package([string]$ZipPath, [string]$OutPath) {
+    Say-Invocation $MyInvocation
+
+    Load-Assembly -Assembly System.IO.Compression.FileSystem
+    Set-Variable -Name Zip
+    try {
+        $Zip = [System.IO.Compression.ZipFile]::OpenRead($ZipPath)
+
+        $DirectoriesToUnpack = Get-List-Of-Directories-And-Versions-To-Unpack-From-Dotnet-Package -Zip $Zip -OutPath $OutPath
+
+        foreach ($entry in $Zip.Entries) {
+            $PathWithVersion = Get-Path-Prefix-With-Version $entry.FullName
+            if (($PathWithVersion -eq $null) -Or ($DirectoriesToUnpack -contains $PathWithVersion)) {
+                $DestinationPath = Get-Absolute-Path $(Join-Path -Path $OutPath -ChildPath $entry.FullName)
+                $DestinationDir = Split-Path -Parent $DestinationPath
+                $OverrideFiles=$OverrideNonVersionedFiles -Or (-Not (Test-Path $DestinationPath))
+                if ((-Not $DestinationPath.EndsWith("\")) -And $OverrideFiles) {
+                    New-Item -ItemType Directory -Force -Path $DestinationDir | Out-Null
+                    [System.IO.Compression.ZipFileExtensions]::ExtractToFile($entry, $DestinationPath, $OverrideNonVersionedFiles)
+                }
+            }
+        }
+    }
+    finally {
+        if ($Zip -ne $null) {
+            $Zip.Dispose()
+        }
+    }
+}
+
+function DownloadFile($Source, [string]$OutPath) {
+    if ($Source -notlike "http*") {
+        #  Using System.IO.Path.GetFullPath to get the current directory
+        #    does not work in this context - $pwd gives the current directory
+        if (![System.IO.Path]::IsPathRooted($Source)) {
+            $Source = $(Join-Path -Path $pwd -ChildPath $Source)
+        }
+        $Source = Get-Absolute-Path $Source
+        Say "Copying file from $Source to $OutPath"
+        Copy-Item $Source $OutPath
+        return
+    }
+
+    $Stream = $null
+
+    try {
+        $Response = GetHTTPResponse -Uri $Source
+        $Stream = $Response.Content.ReadAsStreamAsync().Result
+        $File = [System.IO.File]::Create($OutPath)
+        $Stream.CopyTo($File)
+        $File.Close()
+    }
+    finally {
+        if ($Stream -ne $null) {
+            $Stream.Dispose()
+        }
+    }
+}
+
+function Prepend-Sdk-InstallRoot-To-Path([string]$InstallRoot, [string]$BinFolderRelativePath) {
+    $BinPath = Get-Absolute-Path $(Join-Path -Path $InstallRoot -ChildPath $BinFolderRelativePath)
+    if (-Not $NoPath) {
+        $SuffixedBinPath = "$BinPath;"
+        if (-Not $env:path.Contains($SuffixedBinPath)) {
+            Say "Adding to current process PATH: `"$BinPath`". Note: This change will not be visible if PowerShell was run as a child process."
+            $env:path = $SuffixedBinPath + $env:path
+        } else {
+            Say-Verbose "Current process PATH already contains `"$BinPath`""
+        }
+    }
+    else {
+        Say "Binaries of dotnet can be found in $BinPath"
+    }
+}
+
+$CLIArchitecture = Get-CLIArchitecture-From-Architecture $Architecture
+$SpecificVersion = Get-Specific-Version-From-Version -AzureFeed $AzureFeed -Channel $Channel -Version $Version -JSonFile $JSonFile
+$DownloadLink, $EffectiveVersion = Get-Download-Link -AzureFeed $AzureFeed -SpecificVersion $SpecificVersion -CLIArchitecture $CLIArchitecture
+$LegacyDownloadLink = Get-LegacyDownload-Link -AzureFeed $AzureFeed -SpecificVersion $SpecificVersion -CLIArchitecture $CLIArchitecture
+
+$InstallRoot = Resolve-Installation-Path $InstallDir
+Say-Verbose "InstallRoot: $InstallRoot"
+$ScriptName = $MyInvocation.MyCommand.Name
+
+if ($DryRun) {
+    Say "Payload URLs:"
+    Say "Primary named payload URL: $DownloadLink"
+    if ($LegacyDownloadLink) {
+        Say "Legacy named payload URL: $LegacyDownloadLink"
+    }
+    $RepeatableCommand = ".\$ScriptName -Version `"$SpecificVersion`" -InstallDir `"$InstallRoot`" -Architecture `"$CLIArchitecture`""
+    if ($Runtime -eq "dotnet") {
+       $RepeatableCommand+=" -Runtime `"dotnet`""
+    }
+    elseif ($Runtime -eq "aspnetcore") {
+       $RepeatableCommand+=" -Runtime `"aspnetcore`""
+    }
+    foreach ($key in $MyInvocation.BoundParameters.Keys) {
+        if (-not (@("Architecture","Channel","DryRun","InstallDir","Runtime","SharedRuntime","Version") -contains $key)) {
+            $RepeatableCommand+=" -$key `"$($MyInvocation.BoundParameters[$key])`""
+        }
+    }
+    Say "Repeatable invocation: $RepeatableCommand"
+    exit 0
+}
+
+if ($Runtime -eq "dotnet") {
+    $assetName = ".NET Core Runtime"
+    $dotnetPackageRelativePath = "shared\Microsoft.NETCore.App"
+}
+elseif ($Runtime -eq "aspnetcore") {
+    $assetName = "ASP.NET Core Runtime"
+    $dotnetPackageRelativePath = "shared\Microsoft.AspNetCore.App"
+}
+elseif ($Runtime -eq "windowsdesktop") {
+    $assetName = ".NET Core Windows Desktop Runtime"
+    $dotnetPackageRelativePath = "shared\Microsoft.WindowsDesktop.App"
+}
+elseif (-not $Runtime) {
+    $assetName = ".NET Core SDK"
+    $dotnetPackageRelativePath = "sdk"
+}
+else {
+    throw "Invalid value for `$Runtime"
+}
+
+if ($SpecificVersion -ne $EffectiveVersion)
+{
+   Say "Performing installation checks for effective version: $EffectiveVersion"
+   $SpecificVersion = $EffectiveVersion
+}
+
+#  Check if the SDK version is already installed.
+$isAssetInstalled = Is-Dotnet-Package-Installed -InstallRoot $InstallRoot -RelativePathToPackage $dotnetPackageRelativePath -SpecificVersion $SpecificVersion
+if ($isAssetInstalled) {
+    Say "$assetName version $SpecificVersion is already installed."
+    Prepend-Sdk-InstallRoot-To-Path -InstallRoot $InstallRoot -BinFolderRelativePath $BinFolderRelativePath
+    exit 0
+}
+
+New-Item -ItemType Directory -Force -Path $InstallRoot | Out-Null
+
+$installDrive = $((Get-Item $InstallRoot).PSDrive.Name);
+$diskInfo = Get-PSDrive -Name $installDrive
+if ($diskInfo.Free / 1MB -le 100) {
+    Say "There is not enough disk space on drive ${installDrive}:"
+    exit 0
+}
+
+$ZipPath = [System.IO.Path]::combine([System.IO.Path]::GetTempPath(), [System.IO.Path]::GetRandomFileName())
+Say-Verbose "Zip path: $ZipPath"
+
+$DownloadFailed = $false
+Say "Downloading link: $DownloadLink"
+try {
+    DownloadFile -Source $DownloadLink -OutPath $ZipPath
+}
+catch {
+    Say "Cannot download: $DownloadLink"
+    if ($LegacyDownloadLink) {
+        $DownloadLink = $LegacyDownloadLink
+        $ZipPath = [System.IO.Path]::combine([System.IO.Path]::GetTempPath(), [System.IO.Path]::GetRandomFileName())
+        Say-Verbose "Legacy zip path: $ZipPath"
+        Say "Downloading legacy link: $DownloadLink"
+        try {
+            DownloadFile -Source $DownloadLink -OutPath $ZipPath
+        }
+        catch {
+            Say "Cannot download: $DownloadLink"
+            $DownloadFailed = $true
+        }
+    }
+    else {
+        $DownloadFailed = $true
+    }
+}
+
+if ($DownloadFailed) {
+    throw "Could not find/download: `"$assetName`" with version = $SpecificVersion`nRefer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support"
+}
+
+Say "Extracting zip from $DownloadLink"
+Extract-Dotnet-Package -ZipPath $ZipPath -OutPath $InstallRoot
+
+#  Check if the SDK version is installed; if not, fail the installation.
+$isAssetInstalled = $false
+
+# if the version contains "RTM" or "servicing"; check if a 'release-type' SDK version is installed.
+if ($SpecificVersion -Match "rtm" -or $SpecificVersion -Match "servicing") {
+    $ReleaseVersion = $SpecificVersion.Split("-")[0]
+    Say-Verbose "Checking installation: version = $ReleaseVersion"
+    $isAssetInstalled = Is-Dotnet-Package-Installed -InstallRoot $InstallRoot -RelativePathToPackage $dotnetPackageRelativePath -SpecificVersion $ReleaseVersion
+}
+
+#  Check if the SDK version is installed.
+if (!$isAssetInstalled) {
+    Say-Verbose "Checking installation: version = $SpecificVersion"
+    $isAssetInstalled = Is-Dotnet-Package-Installed -InstallRoot $InstallRoot -RelativePathToPackage $dotnetPackageRelativePath -SpecificVersion $SpecificVersion
+}
+
+if (!$isAssetInstalled) {
+    throw "`"$assetName`" with version = $SpecificVersion failed to install with an unknown error."
+}
+
+Remove-Item $ZipPath
+
+Prepend-Sdk-InstallRoot-To-Path -InstallRoot $InstallRoot -BinFolderRelativePath $BinFolderRelativePath
+
+Say "Installation finished"
+exit 0
\ No newline at end of file
diff --git a/eng/common/dotnet-install-scripts/dotnet-install.sh b/eng/common/dotnet-install-scripts/dotnet-install.sh
new file mode 100644
index 000000000..92161141f
--- /dev/null
+++ b/eng/common/dotnet-install-scripts/dotnet-install.sh
@@ -0,0 +1,1133 @@
+#!/usr/bin/env bash
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+# Stop script on NZEC
+set -e
+# Stop script if unbound variable found (use ${var:-} if intentional)
+set -u
+# By default cmd1 | cmd2 returns exit code of cmd2 regardless of cmd1 success
+# This is causing it to fail
+set -o pipefail
+
+# Use in the the functions: eval $invocation
+invocation='say_verbose "Calling: ${yellow:-}${FUNCNAME[0]} ${green:-}$*${normal:-}"'
+
+# standard output may be used as a return value in the functions
+# we need a way to write text on the screen in the functions so that
+# it won't interfere with the return value.
+# Exposing stream 3 as a pipe to standard output of the script itself
+exec 3>&1
+
+# Setup some colors to use. These need to work in fairly limited shells, like the Ubuntu Docker container where there are only 8 colors.
+# See if stdout is a terminal
+if [ -t 1 ] && command -v tput > /dev/null; then
+    # see if it supports colors
+    ncolors=$(tput colors)
+    if [ -n "$ncolors" ] && [ $ncolors -ge 8 ]; then
+        bold="$(tput bold       || echo)"
+        normal="$(tput sgr0     || echo)"
+        black="$(tput setaf 0   || echo)"
+        red="$(tput setaf 1     || echo)"
+        green="$(tput setaf 2   || echo)"
+        yellow="$(tput setaf 3  || echo)"
+        blue="$(tput setaf 4    || echo)"
+        magenta="$(tput setaf 5 || echo)"
+        cyan="$(tput setaf 6    || echo)"
+        white="$(tput setaf 7   || echo)"
+    fi
+fi
+
+say_warning() {
+    printf "%b\n" "${yellow:-}dotnet_install: Warning: $1${normal:-}"
+}
+
+say_err() {
+    printf "%b\n" "${red:-}dotnet_install: Error: $1${normal:-}" >&2
+}
+
+say() {
+    # using stream 3 (defined in the beginning) to not interfere with stdout of functions
+    # which may be used as return value
+    printf "%b\n" "${cyan:-}dotnet-install:${normal:-} $1" >&3
+}
+
+say_verbose() {
+    if [ "$verbose" = true ]; then
+        say "$1"
+    fi
+}
+
+# This platform list is finite - if the SDK/Runtime has supported Linux distribution-specific assets,
+#   then and only then should the Linux distribution appear in this list.
+# Adding a Linux distribution to this list does not imply distribution-specific support.
+get_legacy_os_name_from_platform() {
+    eval $invocation
+
+    platform="$1"
+    case "$platform" in
+        "centos.7")
+            echo "centos"
+            return 0
+            ;;
+        "debian.8")
+            echo "debian"
+            return 0
+            ;;
+        "debian.9")
+            echo "debian.9"
+            return 0
+            ;;
+        "fedora.23")
+            echo "fedora.23"
+            return 0
+            ;;
+        "fedora.24")
+            echo "fedora.24"
+            return 0
+            ;;
+        "fedora.27")
+            echo "fedora.27"
+            return 0
+            ;;
+        "fedora.28")
+            echo "fedora.28"
+            return 0
+            ;;
+        "opensuse.13.2")
+            echo "opensuse.13.2"
+            return 0
+            ;;
+        "opensuse.42.1")
+            echo "opensuse.42.1"
+            return 0
+            ;;
+        "opensuse.42.3")
+            echo "opensuse.42.3"
+            return 0
+            ;;
+        "rhel.7"*)
+            echo "rhel"
+            return 0
+            ;;
+        "ubuntu.14.04")
+            echo "ubuntu"
+            return 0
+            ;;
+        "ubuntu.16.04")
+            echo "ubuntu.16.04"
+            return 0
+            ;;
+        "ubuntu.16.10")
+            echo "ubuntu.16.10"
+            return 0
+            ;;
+        "ubuntu.18.04")
+            echo "ubuntu.18.04"
+            return 0
+            ;;
+        "alpine.3.4.3")
+            echo "alpine"
+            return 0
+            ;;
+    esac
+    return 1
+}
+
+get_linux_platform_name() {
+    eval $invocation
+
+    if [ -n "$runtime_id" ]; then
+        echo "${runtime_id%-*}"
+        return 0
+    else
+        if [ -e /etc/os-release ]; then
+            . /etc/os-release
+            echo "$ID${VERSION_ID:+.${VERSION_ID}}"
+            return 0
+        elif [ -e /etc/redhat-release ]; then
+            local redhatRelease=$(</etc/redhat-release)
+            if [[ $redhatRelease == "CentOS release 6."* || $redhatRelease == "Red Hat Enterprise Linux "*" release 6."* ]]; then
+                echo "rhel.6"
+                return 0
+            fi
+        fi
+    fi
+
+    say_verbose "Linux specific platform name and version could not be detected: UName = $uname"
+    return 1
+}
+
+is_musl_based_distro() {
+    (ldd --version 2>&1 || true) | grep -q musl
+}
+
+get_current_os_name() {
+    eval $invocation
+
+    local uname=$(uname)
+    if [ "$uname" = "Darwin" ]; then
+        echo "osx"
+        return 0
+    elif [ "$uname" = "FreeBSD" ]; then
+        echo "freebsd"
+        return 0
+    elif [ "$uname" = "Linux" ]; then
+        local linux_platform_name
+        linux_platform_name="$(get_linux_platform_name)" || { echo "linux" && return 0 ; }
+
+        if [ "$linux_platform_name" = "rhel.6" ]; then
+            echo $linux_platform_name
+            return 0
+        elif is_musl_based_distro; then
+            echo "linux-musl"
+            return 0
+        else
+            echo "linux"
+            return 0
+        fi
+    fi
+
+    say_err "OS name could not be detected: UName = $uname"
+    return 1
+}
+
+get_legacy_os_name() {
+    eval $invocation
+
+    local uname=$(uname)
+    if [ "$uname" = "Darwin" ]; then
+        echo "osx"
+        return 0
+    elif [ -n "$runtime_id" ]; then
+        echo $(get_legacy_os_name_from_platform "${runtime_id%-*}" || echo "${runtime_id%-*}")
+        return 0
+    else
+        if [ -e /etc/os-release ]; then
+            . /etc/os-release
+            os=$(get_legacy_os_name_from_platform "$ID${VERSION_ID:+.${VERSION_ID}}" || echo "")
+            if [ -n "$os" ]; then
+                echo "$os"
+                return 0
+            fi
+        fi
+    fi
+
+    say_verbose "Distribution specific OS name and version could not be detected: UName = $uname"
+    return 1
+}
+
+machine_has() {
+    eval $invocation
+
+    hash "$1" > /dev/null 2>&1
+    return $?
+}
+
+
+check_min_reqs() {
+    local hasMinimum=false
+    if machine_has "curl"; then
+        hasMinimum=true
+    elif machine_has "wget"; then
+        hasMinimum=true
+    fi
+
+    if [ "$hasMinimum" = "false" ]; then
+        say_err "curl (recommended) or wget are required to download dotnet. Install missing prerequisite to proceed."
+        return 1
+    fi
+    return 0
+}
+
+check_pre_reqs() {
+    eval $invocation
+
+    if [ "${DOTNET_INSTALL_SKIP_PREREQS:-}" = "1" ]; then
+        return 0
+    fi
+
+    if [ "$(uname)" = "Linux" ]; then
+        if is_musl_based_distro; then
+            if ! command -v scanelf > /dev/null; then
+                say_warning "scanelf not found, please install pax-utils package."
+                return 0
+            fi
+            LDCONFIG_COMMAND="scanelf --ldpath -BF '%f'"
+            [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep libintl)" ] && say_warning "Unable to locate libintl. Probable prerequisite missing; install libintl (or gettext)."
+        else
+            if [ ! -x "$(command -v ldconfig)" ]; then
+                say_verbose "ldconfig is not in PATH, trying /sbin/ldconfig."
+                LDCONFIG_COMMAND="/sbin/ldconfig"
+            else
+                LDCONFIG_COMMAND="ldconfig"
+            fi
+            local librarypath=${LD_LIBRARY_PATH:-}
+            LDCONFIG_COMMAND="$LDCONFIG_COMMAND -NXv ${librarypath//:/ }"
+        fi
+
+        [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep zlib)" ] && say_warning "Unable to locate zlib. Probable prerequisite missing; install zlib."
+        [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep ssl)" ] && say_warning "Unable to locate libssl. Probable prerequisite missing; install libssl."
+        [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep libicu)" ] && say_warning "Unable to locate libicu. Probable prerequisite missing; install libicu."
+        [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep lttng)" ] && say_warning "Unable to locate liblttng. Probable prerequisite missing; install libcurl."
+        [ -z "$($LDCONFIG_COMMAND 2>/dev/null | grep libcurl)" ] && say_warning "Unable to locate libcurl. Probable prerequisite missing; install libcurl."
+    fi
+
+    return 0
+}
+
+# args:
+# input - $1
+to_lowercase() {
+    #eval $invocation
+
+    echo "$1" | tr '[:upper:]' '[:lower:]'
+    return 0
+}
+
+# args:
+# input - $1
+remove_trailing_slash() {
+    #eval $invocation
+
+    local input="${1:-}"
+    echo "${input%/}"
+    return 0
+}
+
+# args:
+# input - $1
+remove_beginning_slash() {
+    #eval $invocation
+
+    local input="${1:-}"
+    echo "${input#/}"
+    return 0
+}
+
+# args:
+# root_path - $1
+# child_path - $2 - this parameter can be empty
+combine_paths() {
+    eval $invocation
+
+    # TODO: Consider making it work with any number of paths. For now:
+    if [ ! -z "${3:-}" ]; then
+        say_err "combine_paths: Function takes two parameters."
+        return 1
+    fi
+
+    local root_path="$(remove_trailing_slash "$1")"
+    local child_path="$(remove_beginning_slash "${2:-}")"
+    say_verbose "combine_paths: root_path=$root_path"
+    say_verbose "combine_paths: child_path=$child_path"
+    echo "$root_path/$child_path"
+    return 0
+}
+
+get_machine_architecture() {
+    eval $invocation
+
+    if command -v uname > /dev/null; then
+        CPUName=$(uname -m)
+        case $CPUName in
+        armv7l)
+            echo "arm"
+            return 0
+            ;;
+        aarch64)
+            echo "arm64"
+            return 0
+            ;;
+        esac
+    fi
+
+    # Always default to 'x64'
+    echo "x64"
+    return 0
+}
+
+# args:
+# architecture - $1
+get_normalized_architecture_from_architecture() {
+    eval $invocation
+
+    local architecture="$(to_lowercase "$1")"
+    case "$architecture" in
+        \<auto\>)
+            echo "$(get_normalized_architecture_from_architecture "$(get_machine_architecture)")"
+            return 0
+            ;;
+        amd64|x64)
+            echo "x64"
+            return 0
+            ;;
+        arm)
+            echo "arm"
+            return 0
+            ;;
+        arm64)
+            echo "arm64"
+            return 0
+            ;;
+    esac
+
+    say_err "Architecture \`$architecture\` not supported. If you think this is a bug, report it at https://github.com/dotnet/sdk/issues"
+    return 1
+}
+
+# The version text returned from the feeds is a 1-line or 2-line string:
+# For the SDK and the dotnet runtime (2 lines):
+# Line 1: # commit_hash
+# Line 2: # 4-part version
+# For the aspnetcore runtime (1 line):
+# Line 1: # 4-part version
+
+# args:
+# version_text - stdin
+get_version_from_version_info() {
+    eval $invocation
+
+    cat | tail -n 1 | sed 's/\r$//'
+    return 0
+}
+
+# args:
+# install_root - $1
+# relative_path_to_package - $2
+# specific_version - $3
+is_dotnet_package_installed() {
+    eval $invocation
+
+    local install_root="$1"
+    local relative_path_to_package="$2"
+    local specific_version="${3//[$'\t\r\n']}"
+
+    local dotnet_package_path="$(combine_paths "$(combine_paths "$install_root" "$relative_path_to_package")" "$specific_version")"
+    say_verbose "is_dotnet_package_installed: dotnet_package_path=$dotnet_package_path"
+
+    if [ -d "$dotnet_package_path" ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# args:
+# azure_feed - $1
+# channel - $2
+# normalized_architecture - $3
+# coherent - $4
+get_latest_version_info() {
+    eval $invocation
+
+    local azure_feed="$1"
+    local channel="$2"
+    local normalized_architecture="$3"
+    local coherent="$4"
+
+    local version_file_url=null
+    if [[ "$runtime" == "dotnet" ]]; then
+        version_file_url="$uncached_feed/Runtime/$channel/latest.version"
+    elif [[ "$runtime" == "aspnetcore" ]]; then
+        version_file_url="$uncached_feed/aspnetcore/Runtime/$channel/latest.version"
+    elif [ -z "$runtime" ]; then
+        if [ "$coherent" = true ]; then
+            version_file_url="$uncached_feed/Sdk/$channel/latest.coherent.version"
+        else
+            version_file_url="$uncached_feed/Sdk/$channel/latest.version"
+        fi
+    else
+        say_err "Invalid value for \$runtime"
+        return 1
+    fi
+    say_verbose "get_latest_version_info: latest url: $version_file_url"
+
+    download "$version_file_url"
+    return $?
+}
+
+# args:
+# json_file - $1
+parse_jsonfile_for_version() {
+    eval $invocation
+
+    local json_file="$1"
+    if [ ! -f "$json_file" ]; then
+        say_err "Unable to find \`$json_file\`"
+        return 1
+    fi
+
+    sdk_section=$(cat $json_file | awk '/"sdk"/,/}/')
+    if [ -z "$sdk_section" ]; then
+        say_err "Unable to parse the SDK node in \`$json_file\`"
+        return 1
+    fi
+
+    sdk_list=$(echo $sdk_section | awk -F"[{}]" '{print $2}')
+    sdk_list=${sdk_list//[\" ]/}
+    sdk_list=${sdk_list//,/$'\n'}
+    sdk_list="$(echo -e "${sdk_list}" | tr -d '[[:space:]]')"
+
+    local version_info=""
+    while read -r line; do
+      IFS=:
+      while read -r key value; do
+        if [[ "$key" == "version" ]]; then
+          version_info=$value
+        fi
+      done <<< "$line"
+    done <<< "$sdk_list"
+    if [ -z "$version_info" ]; then
+        say_err "Unable to find the SDK:version node in \`$json_file\`"
+        return 1
+    fi
+
+    unset IFS;
+    echo "$version_info"
+    return 0
+}
+
+# args:
+# azure_feed - $1
+# channel - $2
+# normalized_architecture - $3
+# version - $4
+# json_file - $5
+get_specific_version_from_version() {
+    eval $invocation
+
+    local azure_feed="$1"
+    local channel="$2"
+    local normalized_architecture="$3"
+    local version="$(to_lowercase "$4")"
+    local json_file="$5"
+
+    if [ -z "$json_file" ]; then
+        case "$version" in
+            latest)
+                local version_info
+                version_info="$(get_latest_version_info "$azure_feed" "$channel" "$normalized_architecture" false)" || return 1
+                say_verbose "get_specific_version_from_version: version_info=$version_info"
+                echo "$version_info" | get_version_from_version_info
+                return 0
+                ;;
+            coherent)
+                local version_info
+                version_info="$(get_latest_version_info "$azure_feed" "$channel" "$normalized_architecture" true)" || return 1
+                say_verbose "get_specific_version_from_version: version_info=$version_info"
+                echo "$version_info" | get_version_from_version_info
+                return 0
+                ;;
+            *)
+                echo "$version"
+                return 0
+                ;;
+        esac
+    else
+        local version_info
+        version_info="$(parse_jsonfile_for_version "$json_file")" || return 1
+        echo "$version_info"
+        return 0
+    fi
+}
+
+# args:
+# azure_feed - $1
+# channel - $2
+# normalized_architecture - $3
+# specific_version - $4
+construct_download_link() {
+    eval $invocation
+
+    local azure_feed="$1"
+    local channel="$2"
+    local normalized_architecture="$3"
+    local specific_version="${4//[$'\t\r\n']}"
+    local specific_product_version="$(get_specific_product_version "$1" "$4")"
+
+    local osname
+    osname="$(get_current_os_name)" || return 1
+
+    local download_link=null
+    if [[ "$runtime" == "dotnet" ]]; then
+        download_link="$azure_feed/Runtime/$specific_version/dotnet-runtime-$specific_product_version-$osname-$normalized_architecture.tar.gz"
+    elif [[ "$runtime" == "aspnetcore" ]]; then
+        download_link="$azure_feed/aspnetcore/Runtime/$specific_version/aspnetcore-runtime-$specific_product_version-$osname-$normalized_architecture.tar.gz"
+    elif [ -z "$runtime" ]; then
+        download_link="$azure_feed/Sdk/$specific_version/dotnet-sdk-$specific_product_version-$osname-$normalized_architecture.tar.gz"
+    else
+        return 1
+    fi
+
+    echo "$download_link"
+    return 0
+}
+
+# args:
+# azure_feed - $1
+# specific_version - $2
+get_specific_product_version() {
+    # If we find a 'productVersion.txt' at the root of any folder, we'll use its contents 
+    # to resolve the version of what's in the folder, superseding the specified version.
+    eval $invocation
+
+    local azure_feed="$1"
+    local specific_version="${2//[$'\t\r\n']}"
+    local specific_product_version=$specific_version
+
+    local download_link=null
+    if [[ "$runtime" == "dotnet" ]]; then
+        download_link="$azure_feed/Runtime/$specific_version/productVersion.txt${feed_credential}"
+    elif [[ "$runtime" == "aspnetcore" ]]; then
+        download_link="$azure_feed/aspnetcore/Runtime/$specific_version/productVersion.txt${feed_credential}"
+    elif [ -z "$runtime" ]; then
+        download_link="$azure_feed/Sdk/$specific_version/productVersion.txt${feed_credential}"
+    else
+        return 1
+    fi
+
+    specific_product_version=$(curl -s --fail "$download_link")
+    if [ $? -ne 0 ]
+    then
+      specific_product_version=$(wget -qO- "$download_link")
+      if [ $? -ne 0 ]
+      then
+        specific_product_version=$specific_version
+      fi
+    fi
+    specific_product_version="${specific_product_version//[$'\t\r\n']}"
+
+    echo "$specific_product_version"
+    return 0
+}
+
+# args:
+# azure_feed - $1
+# channel - $2
+# normalized_architecture - $3
+# specific_version - $4
+construct_legacy_download_link() {
+    eval $invocation
+
+    local azure_feed="$1"
+    local channel="$2"
+    local normalized_architecture="$3"
+    local specific_version="${4//[$'\t\r\n']}"
+
+    local distro_specific_osname
+    distro_specific_osname="$(get_legacy_os_name)" || return 1
+
+    local legacy_download_link=null
+    if [[ "$runtime" == "dotnet" ]]; then
+        legacy_download_link="$azure_feed/Runtime/$specific_version/dotnet-$distro_specific_osname-$normalized_architecture.$specific_version.tar.gz"
+    elif [ -z "$runtime" ]; then
+        legacy_download_link="$azure_feed/Sdk/$specific_version/dotnet-dev-$distro_specific_osname-$normalized_architecture.$specific_version.tar.gz"
+    else
+        return 1
+    fi
+
+    echo "$legacy_download_link"
+    return 0
+}
+
+get_user_install_path() {
+    eval $invocation
+
+    if [ ! -z "${DOTNET_INSTALL_DIR:-}" ]; then
+        echo "$DOTNET_INSTALL_DIR"
+    else
+        echo "$HOME/.dotnet"
+    fi
+    return 0
+}
+
+# args:
+# install_dir - $1
+resolve_installation_path() {
+    eval $invocation
+
+    local install_dir=$1
+    if [ "$install_dir" = "<auto>" ]; then
+        local user_install_path="$(get_user_install_path)"
+        say_verbose "resolve_installation_path: user_install_path=$user_install_path"
+        echo "$user_install_path"
+        return 0
+    fi
+
+    echo "$install_dir"
+    return 0
+}
+
+# args:
+# relative_or_absolute_path - $1
+get_absolute_path() {
+    eval $invocation
+
+    local relative_or_absolute_path=$1
+    echo "$(cd "$(dirname "$1")" && pwd -P)/$(basename "$1")"
+    return 0
+}
+
+# args:
+# input_files - stdin
+# root_path - $1
+# out_path - $2
+# override - $3
+copy_files_or_dirs_from_list() {
+    eval $invocation
+
+    local root_path="$(remove_trailing_slash "$1")"
+    local out_path="$(remove_trailing_slash "$2")"
+    local override="$3"
+    local osname="$(get_current_os_name)"
+    local override_switch=$(
+        if [ "$override" = false ]; then
+            if [ "$osname" = "linux-musl" ]; then
+                printf -- "-u";
+            else
+                printf -- "-n";
+            fi
+        fi)
+
+    cat | uniq | while read -r file_path; do
+        local path="$(remove_beginning_slash "${file_path#$root_path}")"
+        local target="$out_path/$path"
+        if [ "$override" = true ] || (! ([ -d "$target" ] || [ -e "$target" ])); then
+            mkdir -p "$out_path/$(dirname "$path")"
+            if [ -d "$target" ]; then
+                rm -rf "$target"
+            fi
+            cp -R $override_switch "$root_path/$path" "$target"
+        fi
+    done
+}
+
+# args:
+# zip_path - $1
+# out_path - $2
+extract_dotnet_package() {
+    eval $invocation
+
+    local zip_path="$1"
+    local out_path="$2"
+
+    local temp_out_path="$(mktemp -d "$temporary_file_template")"
+
+    local failed=false
+    tar -xzf "$zip_path" -C "$temp_out_path" > /dev/null || failed=true
+
+    local folders_with_version_regex='^.*/[0-9]+\.[0-9]+[^/]+/'
+    find "$temp_out_path" -type f | grep -Eo "$folders_with_version_regex" | sort | copy_files_or_dirs_from_list "$temp_out_path" "$out_path" false
+    find "$temp_out_path" -type f | grep -Ev "$folders_with_version_regex" | copy_files_or_dirs_from_list "$temp_out_path" "$out_path" "$override_non_versioned_files"
+
+    rm -rf "$temp_out_path"
+
+    if [ "$failed" = true ]; then
+        say_err "Extraction failed"
+        return 1
+    fi
+}
+
+# args:
+# remote_path - $1
+# [out_path] - $2 - stdout if not provided
+download() {
+    eval $invocation
+
+    local remote_path="$1"
+    local out_path="${2:-}"
+
+    if [[ "$remote_path" != "http"* ]]; then
+        cp "$remote_path" "$out_path"
+        return $?
+    fi
+
+    local failed=false
+    if machine_has "curl"; then
+        downloadcurl "$remote_path" "$out_path" || failed=true
+    elif machine_has "wget"; then
+        downloadwget "$remote_path" "$out_path" || failed=true
+    else
+        failed=true
+    fi
+    if [ "$failed" = true ]; then
+        say_verbose "Download failed: $remote_path"
+        return 1
+    fi
+    return 0
+}
+
+downloadcurl() {
+    eval $invocation
+    local remote_path="$1"
+    local out_path="${2:-}"
+
+    # Append feed_credential as late as possible before calling curl to avoid logging feed_credential
+    remote_path="${remote_path}${feed_credential}"
+
+    local curl_options="--retry 20 --retry-delay 2 --connect-timeout 15 -sSL -f --create-dirs "
+    local failed=false
+    if [ -z "$out_path" ]; then
+        curl $curl_options "$remote_path" || failed=true
+    else
+        curl $curl_options -o "$out_path" "$remote_path" || failed=true
+    fi
+    if [ "$failed" = true ]; then
+        say_verbose "Curl download failed"
+        return 1
+    fi
+    return 0
+}
+
+downloadwget() {
+    eval $invocation
+    local remote_path="$1"
+    local out_path="${2:-}"
+
+    # Append feed_credential as late as possible before calling wget to avoid logging feed_credential
+    remote_path="${remote_path}${feed_credential}"
+    local wget_options="--tries 20 --waitretry 2 --connect-timeout 15 "
+    local failed=false
+    if [ -z "$out_path" ]; then
+        wget -q $wget_options -O - "$remote_path" || failed=true
+    else
+        wget $wget_options -O "$out_path" "$remote_path" || failed=true
+    fi
+    if [ "$failed" = true ]; then
+        say_verbose "Wget download failed"
+        return 1
+    fi
+    return 0
+}
+
+calculate_vars() {
+    eval $invocation
+    valid_legacy_download_link=true
+
+    normalized_architecture="$(get_normalized_architecture_from_architecture "$architecture")"
+    say_verbose "normalized_architecture=$normalized_architecture"
+
+    specific_version="$(get_specific_version_from_version "$azure_feed" "$channel" "$normalized_architecture" "$version" "$json_file")"
+    specific_product_version="$(get_specific_product_version "$azure_feed" "$specific_version")"
+    say_verbose "specific_version=$specific_version"
+    if [ -z "$specific_version" ]; then
+        say_err "Could not resolve version information."
+        return 1
+    fi
+
+    download_link="$(construct_download_link "$azure_feed" "$channel" "$normalized_architecture" "$specific_version")"
+    say_verbose "Constructed primary named payload URL: $download_link"
+
+    legacy_download_link="$(construct_legacy_download_link "$azure_feed" "$channel" "$normalized_architecture" "$specific_version")" || valid_legacy_download_link=false
+
+    if [ "$valid_legacy_download_link" = true ]; then
+        say_verbose "Constructed legacy named payload URL: $legacy_download_link"
+    else
+        say_verbose "Cound not construct a legacy_download_link; omitting..."
+    fi
+
+    install_root="$(resolve_installation_path "$install_dir")"
+    say_verbose "InstallRoot: $install_root"
+}
+
+install_dotnet() {
+    eval $invocation
+    local download_failed=false
+    local asset_name=''
+    local asset_relative_path=''
+
+    if [[ "$runtime" == "dotnet" ]]; then
+        asset_relative_path="shared/Microsoft.NETCore.App"
+        asset_name=".NET Core Runtime"
+    elif [[ "$runtime" == "aspnetcore" ]]; then
+        asset_relative_path="shared/Microsoft.AspNetCore.App"
+        asset_name="ASP.NET Core Runtime"
+    elif [ -z "$runtime" ]; then
+        asset_relative_path="sdk"
+        asset_name=".NET Core SDK"
+    else
+        say_err "Invalid value for \$runtime"
+        return 1
+    fi
+
+    #  Check if the SDK version is already installed.
+    if is_dotnet_package_installed "$install_root" "$asset_relative_path" "$specific_version"; then
+        say "$asset_name version $specific_version is already installed."
+        return 0
+    fi
+
+    mkdir -p "$install_root"
+    zip_path="$(mktemp "$temporary_file_template")"
+    say_verbose "Zip path: $zip_path"
+
+    say "Downloading link: $download_link"
+
+    # Failures are normal in the non-legacy case for ultimately legacy downloads.
+    # Do not output to stderr, since output to stderr is considered an error.
+    download "$download_link" "$zip_path" 2>&1 || download_failed=true
+
+    #  if the download fails, download the legacy_download_link
+    if [ "$download_failed" = true ]; then
+        say "Cannot download: $download_link"
+
+        if [ "$valid_legacy_download_link" = true ]; then
+            download_failed=false
+            download_link="$legacy_download_link"
+            zip_path="$(mktemp "$temporary_file_template")"
+            say_verbose "Legacy zip path: $zip_path"
+            say "Downloading legacy link: $download_link"
+            download "$download_link" "$zip_path" 2>&1 || download_failed=true
+
+            if [ "$download_failed" = true ]; then
+                say "Cannot download: $download_link"
+            fi
+        fi
+    fi
+
+    if [ "$download_failed" = true ]; then
+        say_err "Could not find/download: \`$asset_name\` with version = $specific_version"
+        say_err "Refer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support"
+        return 1
+    fi
+
+    say "Extracting zip from $download_link"
+    extract_dotnet_package "$zip_path" "$install_root"
+
+    #  Check if the SDK version is installed; if not, fail the installation.
+    # if the version contains "RTM" or "servicing"; check if a 'release-type' SDK version is installed.
+    if [[ $specific_version == *"rtm"* || $specific_version == *"servicing"* ]]; then
+        IFS='-'
+        read -ra verArr <<< "$specific_version"
+        release_version="${verArr[0]}"
+        unset IFS;
+        say_verbose "Checking installation: version = $release_version"
+        if is_dotnet_package_installed "$install_root" "$asset_relative_path" "$release_version"; then
+            return 0
+        fi
+    fi
+
+    #  Check if the standard SDK version is installed.
+    say_verbose "Checking installation: version = $specific_product_version"
+    if is_dotnet_package_installed "$install_root" "$asset_relative_path" "$specific_product_version"; then
+        return 0
+    fi
+
+    say_err "\`$asset_name\` with version = $specific_product_version failed to install with an unknown error."
+    return 1
+}
+
+args=("$@")
+
+local_version_file_relative_path="/.version"
+bin_folder_relative_path=""
+temporary_file_template="${TMPDIR:-/tmp}/dotnet.XXXXXXXXX"
+
+channel="LTS"
+version="Latest"
+json_file=""
+install_dir="<auto>"
+architecture="<auto>"
+dry_run=false
+no_path=false
+no_cdn=false
+azure_feed="https://dotnetcli.azureedge.net/dotnet"
+uncached_feed="https://dotnetcli.blob.core.windows.net/dotnet"
+feed_credential=""
+verbose=false
+runtime=""
+runtime_id=""
+override_non_versioned_files=true
+non_dynamic_parameters=""
+
+while [ $# -ne 0 ]
+do
+    name="$1"
+    case "$name" in
+        -c|--channel|-[Cc]hannel)
+            shift
+            channel="$1"
+            ;;
+        -v|--version|-[Vv]ersion)
+            shift
+            version="$1"
+            ;;
+        -i|--install-dir|-[Ii]nstall[Dd]ir)
+            shift
+            install_dir="$1"
+            ;;
+        --arch|--architecture|-[Aa]rch|-[Aa]rchitecture)
+            shift
+            architecture="$1"
+            ;;
+        --shared-runtime|-[Ss]hared[Rr]untime)
+            say_warning "The --shared-runtime flag is obsolete and may be removed in a future version of this script. The recommended usage is to specify '--runtime dotnet'."
+            if [ -z "$runtime" ]; then
+                runtime="dotnet"
+            fi
+            ;;
+        --runtime|-[Rr]untime)
+            shift
+            runtime="$1"
+            if [[ "$runtime" != "dotnet" ]] && [[ "$runtime" != "aspnetcore" ]]; then
+                say_err "Unsupported value for --runtime: '$1'. Valid values are 'dotnet' and 'aspnetcore'."
+                if [[ "$runtime" == "windowsdesktop" ]]; then
+                    say_err "WindowsDesktop archives are manufactured for Windows platforms only."
+                fi
+                exit 1
+            fi
+            ;;
+        --dry-run|-[Dd]ry[Rr]un)
+            dry_run=true
+            ;;
+        --no-path|-[Nn]o[Pp]ath)
+            no_path=true
+            non_dynamic_parameters+=" $name"
+            ;;
+        --verbose|-[Vv]erbose)
+            verbose=true
+            non_dynamic_parameters+=" $name"
+            ;;
+        --no-cdn|-[Nn]o[Cc]dn)
+            no_cdn=true
+            non_dynamic_parameters+=" $name"
+            ;;
+        --azure-feed|-[Aa]zure[Ff]eed)
+            shift
+            azure_feed="$1"
+            non_dynamic_parameters+=" $name "\""$1"\"""
+            ;;
+        --uncached-feed|-[Uu]ncached[Ff]eed)
+            shift
+            uncached_feed="$1"
+            non_dynamic_parameters+=" $name "\""$1"\"""
+            ;;
+        --feed-credential|-[Ff]eed[Cc]redential)
+            shift
+            feed_credential="$1"
+            non_dynamic_parameters+=" $name "\""$1"\"""
+            ;;
+        --runtime-id|-[Rr]untime[Ii]d)
+            shift
+            runtime_id="$1"
+            non_dynamic_parameters+=" $name "\""$1"\"""
+            ;;
+        --jsonfile|-[Jj][Ss]on[Ff]ile)
+            shift
+            json_file="$1"
+            ;;
+        --skip-non-versioned-files|-[Ss]kip[Nn]on[Vv]ersioned[Ff]iles)
+            override_non_versioned_files=false
+            non_dynamic_parameters+=" $name"
+            ;;
+        -?|--?|-h|--help|-[Hh]elp)
+            script_name="$(basename "$0")"
+            echo ".NET Tools Installer"
+            echo "Usage: $script_name [-c|--channel <CHANNEL>] [-v|--version <VERSION>] [-p|--prefix <DESTINATION>]"
+            echo "       $script_name -h|-?|--help"
+            echo ""
+            echo "$script_name is a simple command line interface for obtaining dotnet cli."
+            echo ""
+            echo "Options:"
+            echo "  -c,--channel <CHANNEL>         Download from the channel specified, Defaults to \`$channel\`."
+            echo "      -Channel"
+            echo "          Possible values:"
+            echo "          - Current - most current release"
+            echo "          - LTS - most current supported release"
+            echo "          - 2-part version in a format A.B - represents a specific release"
+            echo "              examples: 2.0; 1.0"
+            echo "          - Branch name"
+            echo "              examples: release/2.0.0; Master"
+            echo "          Note: The version parameter overrides the channel parameter."
+            echo "  -v,--version <VERSION>         Use specific VERSION, Defaults to \`$version\`."
+            echo "      -Version"
+            echo "          Possible values:"
+            echo "          - latest - most latest build on specific channel"
+            echo "          - coherent - most latest coherent build on specific channel"
+            echo "              coherent applies only to SDK downloads"
+            echo "          - 3-part version in a format A.B.C - represents specific version of build"
+            echo "              examples: 2.0.0-preview2-006120; 1.1.0"
+            echo "  -i,--install-dir <DIR>             Install under specified location (see Install Location below)"
+            echo "      -InstallDir"
+            echo "  --architecture <ARCHITECTURE>      Architecture of dotnet binaries to be installed, Defaults to \`$architecture\`."
+            echo "      --arch,-Architecture,-Arch"
+            echo "          Possible values: x64, arm, and arm64"
+            echo "  --runtime <RUNTIME>                Installs a shared runtime only, without the SDK."
+            echo "      -Runtime"
+            echo "          Possible values:"
+            echo "          - dotnet     - the Microsoft.NETCore.App shared runtime"
+            echo "          - aspnetcore - the Microsoft.AspNetCore.App shared runtime"
+            echo "  --dry-run,-DryRun                  Do not perform installation. Display download link."
+            echo "  --no-path, -NoPath                 Do not set PATH for the current process."
+            echo "  --verbose,-Verbose                 Display diagnostics information."
+            echo "  --azure-feed,-AzureFeed            Azure feed location. Defaults to $azure_feed, This parameter typically is not changed by the user."
+            echo "  --uncached-feed,-UncachedFeed      Uncached feed location. This parameter typically is not changed by the user."
+            echo "  --feed-credential,-FeedCredential  Azure feed shared access token. This parameter typically is not specified."
+            echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable."
+            echo "      -SkipNonVersionedFiles"
+            echo "  --no-cdn,-NoCdn                    Disable downloading from the Azure CDN, and use the uncached feed directly."
+            echo "  --jsonfile <JSONFILE>              Determines the SDK version from a user specified global.json file."
+            echo "                                     Note: global.json must have a value for 'SDK:Version'"
+            echo "  --runtime-id                       Installs the .NET Tools for the given platform (use linux-x64 for portable linux)."
+            echo "      -RuntimeId"
+            echo "  -?,--?,-h,--help,-Help             Shows this help message"
+            echo ""
+            echo "Obsolete parameters:"
+            echo "  --shared-runtime                   The recommended alternative is '--runtime dotnet'."
+            echo "                                     This parameter is obsolete and may be removed in a future version of this script."
+            echo "                                     Installs just the shared runtime bits, not the entire SDK."
+            echo ""
+            echo "Install Location:"
+            echo "  Location is chosen in following order:"
+            echo "    - --install-dir option"
+            echo "    - Environmental variable DOTNET_INSTALL_DIR"
+            echo "    - $HOME/.dotnet"
+            exit 0
+            ;;
+        *)
+            say_err "Unknown argument \`$name\`"
+            exit 1
+            ;;
+    esac
+
+    shift
+done
+
+if [ "$no_cdn" = true ]; then
+    azure_feed="$uncached_feed"
+fi
+
+check_min_reqs
+calculate_vars
+script_name=$(basename "$0")
+
+if [ "$dry_run" = true ]; then
+    say "Payload URLs:"
+    say "Primary named payload URL: $download_link"
+    if [ "$valid_legacy_download_link" = true ]; then
+        say "Legacy named payload URL: $legacy_download_link"
+    fi
+    repeatable_command="./$script_name --version "\""$specific_version"\"" --install-dir "\""$install_root"\"" --architecture "\""$normalized_architecture"\"""
+    if [[ "$runtime" == "dotnet" ]]; then
+        repeatable_command+=" --runtime "\""dotnet"\"""
+    elif [[ "$runtime" == "aspnetcore" ]]; then
+        repeatable_command+=" --runtime "\""aspnetcore"\"""
+    fi
+    repeatable_command+="$non_dynamic_parameters"
+    say "Repeatable invocation: $repeatable_command"
+    exit 0
+fi
+
+check_pre_reqs
+install_dotnet
+
+bin_path="$(get_absolute_path "$(combine_paths "$install_root" "$bin_folder_relative_path")")"
+if [ "$no_path" = false ]; then
+    say "Adding to current process PATH: \`$bin_path\`. Note: This change will be visible only when sourcing script."
+    export PATH="$bin_path":"$PATH"
+else
+    say "Binaries of dotnet can be found in $bin_path"
+fi
+
+say "Installation finished successfully."
diff --git a/eng/common/internal/Directory.Build.props b/eng/common/internal/Directory.Build.props
index e33179ef3..dbf99d82a 100644
--- a/eng/common/internal/Directory.Build.props
+++ b/eng/common/internal/Directory.Build.props
@@ -1,4 +1,4 @@
-<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
+<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. -->
 <Project>
   <Import Project="Sdk.props" Sdk="Microsoft.DotNet.Arcade.Sdk" />
 </Project>
diff --git a/eng/common/post-build/publish-using-darc.ps1 b/eng/common/post-build/publish-using-darc.ps1
index f044afe8f..650b13b08 100644
--- a/eng/common/post-build/publish-using-darc.ps1
+++ b/eng/common/post-build/publish-using-darc.ps1
@@ -8,7 +8,7 @@ param(
   [Parameter(Mandatory=$false)][string] $EnableSourceLinkValidation,
   [Parameter(Mandatory=$false)][string] $EnableSigningValidation,
   [Parameter(Mandatory=$false)][string] $EnableNugetValidation,
-  [Parameter(Mandatory=$true)][string] $PublishInstallersAndChecksums,
+  [Parameter(Mandatory=$false)][string] $PublishInstallersAndChecksums,
   [Parameter(Mandatory=$false)][string] $ArtifactsPublishingAdditionalParameters,
   [Parameter(Mandatory=$false)][string] $SigningValidationAdditionalParameters
 )
@@ -16,7 +16,7 @@ param(
 try {
   . $PSScriptRoot\post-build-utils.ps1
   # Hard coding darc version till the next arcade-services roll out, cos this version has required API changes for darc add-build-to-channel
-  . $PSScriptRoot\..\darc-init.ps1 -darcVersion "1.1.0-beta.20418.1"
+  $darc = Get-Darc "1.1.0-beta.20418.1"
 
   $optionalParams = [System.Collections.ArrayList]::new()
 
@@ -29,7 +29,7 @@ try {
     $optionalParams.Add("--no-wait") | Out-Null
   }
 
-  if ("true" -eq $PublishInstallersAndChecksums) {
+  if ("false" -ne $PublishInstallersAndChecksums) {
     $optionalParams.Add("--publish-installers-and-checksums") | Out-Null
   }
 
@@ -50,7 +50,7 @@ try {
     }
   }
 
-  & darc add-build-to-channel `
+  & $darc add-build-to-channel `
   --id $buildId `
   --publishing-infra-version $PublishingInfraVersion `
   --default-channels `
diff --git a/eng/common/templates/job/publish-build-assets.yml b/eng/common/templates/job/publish-build-assets.yml
index 055304ad8..d0c3cc2b3 100644
--- a/eng/common/templates/job/publish-build-assets.yml
+++ b/eng/common/templates/job/publish-build-assets.yml
@@ -67,6 +67,7 @@ jobs:
           /p:MaestroApiEndpoint=https://maestro-prod.westus2.cloudapp.azure.com
           /p:PublishUsingPipelines=${{ parameters.publishUsingPipelines }}
           /p:Configuration=$(_BuildConfig)
+          /p:OfficialBuildId=$(Build.BuildNumber)
       condition: ${{ parameters.condition }}
       continueOnError: ${{ parameters.continueOnError }}
     
@@ -87,11 +88,6 @@ jobs:
         ArtifactName: ReleaseConfigs
     
     - ${{ if eq(parameters.enablePublishBuildArtifacts, 'true') }}:
-      - task: PublishBuildArtifacts@1
-        displayName: Publish Logs to VSTS
-        inputs:
-          PathtoPublish: '$(Build.SourcesDirectory)/artifacts/log/$(_BuildConfig)'
-          PublishLocation: Container
-          ArtifactName: $(Agent.Os)_PublishBuildAssets
-        continueOnError: true
-        condition: always()      
+      - template: /eng/common/templates/steps/publish-logs.yml
+        parameters:
+          JobLabel: 'Publish_Artifacts_Logs'     
diff --git a/eng/common/templates/post-build/channels/generic-internal-channel.yml b/eng/common/templates/post-build/channels/generic-internal-channel.yml
index 59eb93a40..7ae525592 100644
--- a/eng/common/templates/post-build/channels/generic-internal-channel.yml
+++ b/eng/common/templates/post-build/channels/generic-internal-channel.yml
@@ -4,7 +4,7 @@ parameters:
   artifactsPublishingAdditionalParameters: ''
   dependsOn:
   - Validate
-  publishInstallersAndChecksums: false
+  publishInstallersAndChecksums: true
   symbolPublishingAdditionalParameters: ''
   stageName: ''
   channelName: ''
@@ -158,7 +158,7 @@ stages:
             /p:BlobBasePath='$(Build.ArtifactStagingDirectory)/BlobArtifacts/'
             /p:PackageBasePath='$(Build.ArtifactStagingDirectory)/PackageArtifacts/'
             /p:Configuration=Release
-            /p:PublishInstallersAndChecksums=true
+            /p:PublishInstallersAndChecksums=${{ parameters.publishInstallersAndChecksums }}
             /p:ChecksumsTargetStaticFeed=$(InternalChecksumsBlobFeedUrl)
             /p:ChecksumsAzureAccountKey=$(InternalChecksumsBlobFeedKey)
             /p:InstallersTargetStaticFeed=$(InternalInstallersBlobFeedUrl)
diff --git a/eng/common/templates/post-build/channels/generic-public-channel.yml b/eng/common/templates/post-build/channels/generic-public-channel.yml
index 7e80a621a..6cf39dbb2 100644
--- a/eng/common/templates/post-build/channels/generic-public-channel.yml
+++ b/eng/common/templates/post-build/channels/generic-public-channel.yml
@@ -4,7 +4,7 @@ parameters:
   artifactsPublishingAdditionalParameters: ''
   dependsOn:
   - Validate
-  publishInstallersAndChecksums: false
+  publishInstallersAndChecksums: true
   symbolPublishingAdditionalParameters: ''
   stageName: ''
   channelName: ''
diff --git a/eng/common/templates/post-build/post-build.yml b/eng/common/templates/post-build/post-build.yml
index 630a99d4d..df06f5371 100644
--- a/eng/common/templates/post-build/post-build.yml
+++ b/eng/common/templates/post-build/post-build.yml
@@ -19,7 +19,7 @@ parameters:
   enableSigningValidation: true
   enableSymbolValidation: false
   enableNugetValidation: true
-  publishInstallersAndChecksums: false
+  publishInstallersAndChecksums: true
   SDLValidationParameters:
     enable: false
     continueOnError: false
diff --git a/eng/common/templates/steps/publish-logs.yml b/eng/common/templates/steps/publish-logs.yml
index f91751fe7..88f238f36 100644
--- a/eng/common/templates/steps/publish-logs.yml
+++ b/eng/common/templates/steps/publish-logs.yml
@@ -12,7 +12,7 @@ steps:
       Move-Item -Path $(Build.SourcesDirectory)/artifacts/log/Debug/* $(Build.SourcesDirectory)/PostBuildLogs/${{parameters.StageLabel}}/${{parameters.JobLabel}}/
   continueOnError: true
   condition: always()
-  
+
 - task: PublishBuildArtifacts@1
   displayName: Publish Logs
   inputs:
diff --git a/eng/common/tools.ps1 b/eng/common/tools.ps1
index c2e575c97..37a3a3d68 100644
--- a/eng/common/tools.ps1
+++ b/eng/common/tools.ps1
@@ -57,11 +57,15 @@ set-strictmode -version 2.0
 $ErrorActionPreference = 'Stop'
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
 
-# If specifies, provides an alternate path for getting .NET Core SDKs and Runtimes. This script will still try public sources first.
+# If specified, provides an alternate path for getting .NET Core SDKs and Runtimes. This script will still try public sources first.
 [string]$runtimeSourceFeed = if (Test-Path variable:runtimeSourceFeed) { $runtimeSourceFeed } else { $null }
 # Base-64 encoded SAS token that has permission to storage container described by $runtimeSourceFeed
 [string]$runtimeSourceFeedKey = if (Test-Path variable:runtimeSourceFeedKey) { $runtimeSourceFeedKey } else { $null }
 
+# If false, use copy of dotnet-install from /eng/common/dotnet-install-scripts (for custom behaviors).
+# otherwise will fetch from public location.
+[bool]$useDefaultDotnetInstall = if (Test-Path variable:useDefaultDotnetInstall) { $useDefaultDotnetInstall } else { $false }
+
 function Create-Directory ([string[]] $path) {
     New-Item -Path $path -Force -ItemType 'Directory' | Out-Null
 }
@@ -193,42 +197,51 @@ function InitializeDotNetCli([bool]$install, [bool]$createSdkLocationFile) {
 function GetDotNetInstallScript([string] $dotnetRoot) {
   $installScript = Join-Path $dotnetRoot 'dotnet-install.ps1'
   if (!(Test-Path $installScript)) {
-    Create-Directory $dotnetRoot
-    $ProgressPreference = 'SilentlyContinue' # Don't display the console progress UI - it's a huge perf hit
-
-    $maxRetries = 5
-    $retries = 1
-
-    $uri = "https://dot.net/$dotnetInstallScriptVersion/dotnet-install.ps1"
-
-    while($true) {
-      try {
-        Write-Host "GET $uri"
-        Invoke-WebRequest $uri -OutFile $installScript
-        break
-      }
-      catch {
-        Write-Host "Failed to download '$uri'"
-        Write-Error $_.Exception.Message -ErrorAction Continue
-      }
-
-      if (++$retries -le $maxRetries) {
-        $delayInSeconds = [math]::Pow(2, $retries) - 1 # Exponential backoff
-        Write-Host "Retrying. Waiting for $delayInSeconds seconds before next attempt ($retries of $maxRetries)."
-        Start-Sleep -Seconds $delayInSeconds
-      }
-      else {
-        throw "Unable to download file in $maxRetries attempts."
+    create-directory $dotnetroot
+
+    if ($useDefaultDotnetInstall)
+    {
+      $progresspreference = 'silentlycontinue' # don't display the console progress ui - it's a huge perf hit
+
+      $maxretries = 5
+      $retries = 1
+
+      $uri = "https://dot.net/$dotnetinstallscriptversion/dotnet-install.ps1"
+
+      while($true) {
+        try {
+          write-host "get $uri"
+          invoke-webrequest $uri -outfile $installscript
+          break
+        }
+        catch {
+          write-host "failed to download '$uri'"
+          write-error $_.exception.message -erroraction continue
+        }
+
+        if (++$retries -le $maxretries) {
+          $delayinseconds = [math]::pow(2, $retries) - 1 # exponential backoff
+          write-host "retrying. waiting for $delayinseconds seconds before next attempt ($retries of $maxretries)."
+          start-sleep -seconds $delayinseconds
+        }
+        else {
+          throw "unable to download file in $maxretries attempts."
+        }
       }
-
+    }
+    else
+    {
+      # Use a special version of the script from eng/common that understands the existence of a "productVersion.txt" in a dotnet path.
+      # See https://github.com/dotnet/arcade/issues/6047 for details
+      $engCommonCopy = Resolve-Path (Join-Path $PSScriptRoot 'dotnet-install-scripts\dotnet-install.ps1')
+      Copy-Item $engCommonCopy -Destination $installScript -Force
     }
   }
-
   return $installScript
 }
 
-function InstallDotNetSdk([string] $dotnetRoot, [string] $version, [string] $architecture = '') {
-  InstallDotNet $dotnetRoot $version $architecture '' $false $runtimeSourceFeed $runtimeSourceFeedKey
+function InstallDotNetSdk([string] $dotnetRoot, [string] $version, [string] $architecture = '', [switch] $noPath) {
+  InstallDotNet $dotnetRoot $version $architecture '' $false $runtimeSourceFeed $runtimeSourceFeedKey -noPath:$noPath
 }
 
 function InstallDotNet([string] $dotnetRoot,
@@ -237,7 +250,8 @@ function InstallDotNet([string] $dotnetRoot,
   [string] $runtime = '',
   [bool] $skipNonVersionedFiles = $false,
   [string] $runtimeSourceFeed = '',
-  [string] $runtimeSourceFeedKey = '') {
+  [string] $runtimeSourceFeedKey = '',
+  [switch] $noPath) {
 
   $installScript = GetDotNetInstallScript $dotnetRoot
   $installParameters = @{
@@ -248,6 +262,7 @@ function InstallDotNet([string] $dotnetRoot,
   if ($architecture) { $installParameters.Architecture = $architecture }
   if ($runtime) { $installParameters.Runtime = $runtime }
   if ($skipNonVersionedFiles) { $installParameters.SkipNonVersionedFiles = $skipNonVersionedFiles }
+  if ($noPath) { $installParameters.NoPath = $True }
 
   try {
     & $installScript @installParameters
@@ -703,6 +718,16 @@ function IsWindowsPlatform() {
   return [environment]::OSVersion.Platform -eq [PlatformID]::Win32NT
 }
 
+function Get-Darc($version) {
+  $darcPath  = "$TempDir\darc\$(New-Guid)"
+  if ($version -ne $null) {
+    & $PSScriptRoot\darc-init.ps1 -toolpath $darcPath -darcVersion $version | Out-Host
+  } else {
+    & $PSScriptRoot\darc-init.ps1 -toolpath $darcPath | Out-Host
+  }
+  return "$darcPath\darc.exe"
+}
+
 . $PSScriptRoot\pipeline-logging-functions.ps1
 
 $RepoRoot = Resolve-Path (Join-Path $PSScriptRoot '..\..')
diff --git a/eng/common/tools.sh b/eng/common/tools.sh
index 2be5cba30..c722a0585 100755
--- a/eng/common/tools.sh
+++ b/eng/common/tools.sh
@@ -68,6 +68,10 @@ fi
 runtime_source_feed=${runtime_source_feed:-''}
 runtime_source_feed_key=${runtime_source_feed_key:-''}
 
+# Determines if dotnet-install.sh comes from the eng/common folder or the internet
+# (default = public version)
+use_default_dotnet_install=${use_default_dotnet_install:-false}
+
 # Resolve any symlinks in the given path.
 function ResolvePath {
   local path=$1
@@ -267,23 +271,30 @@ function GetDotNetInstallScript {
   if [[ ! -a "$install_script" ]]; then
     mkdir -p "$root"
 
-    echo "Downloading '$install_script_url'"
+    if [[ "$use_default_dotnet_install" == true ]]; then
+      echo "Downloading '$install_script_url'"
 
-    # Use curl if available, otherwise use wget
-    if command -v curl > /dev/null; then
-      with_retries curl "$install_script_url" -sSL --retry 10 --create-dirs -o "$install_script" || {
-        local exit_code=$?
-        Write-PipelineTelemetryError -category 'InitializeToolset' "Failed to acquire dotnet install script (exit code '$exit_code')."
-        ExitWithExitCode $exit_code
-      }
+      # Use curl if available, otherwise use wget
+      if command -v curl > /dev/null; then
+        with_retries curl "$install_script_url" -sSL --retry 10 --create-dirs -o "$install_script" || {
+          local exit_code=$?
+          Write-PipelineTelemetryError -category 'InitializeToolset' "Failed to acquire dotnet install script (exit code '$exit_code')."
+          ExitWithExitCode $exit_code
+        }
+      else
+        with_retries wget -v -O "$install_script" "$install_script_url" || {
+          local exit_code=$?
+          Write-PipelineTelemetryError -category 'InitializeToolset' "Failed to acquire dotnet install script (exit code '$exit_code')."
+          ExitWithExitCode $exit_code
+        }
+      fi
     else
-      with_retries wget -v -O "$install_script" "$install_script_url" || {
-        local exit_code=$?
-        Write-PipelineTelemetryError -category 'InitializeToolset' "Failed to acquire dotnet install script (exit code '$exit_code')."
-        ExitWithExitCode $exit_code
-      }
+      # Use a special version of the script from eng/common that understands the existence of a "productVersion.txt" in a dotnet path.
+      # See https://github.com/dotnet/arcade/issues/6047 for details
+      cp $repo_root/eng/common/dotnet-install-scripts/dotnet-install.sh $install_script
     fi
   fi
+
   # return value
   _GetDotNetInstallScript="$install_script"
 }