powershell-core (Install)

$ErrorActionPreference = 'Stop';

$packageName= 'powershell-core'
$toolsDir   = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
$Version = "6.1.0-preview.3"
$InstallFolder = "$env:ProgramFiles\PowerShell\$Version"

If (Test-Path "$InstallFolder\pwsh.exe")
{
  Write-output "$packagename version $PFSubfolder is already installed by another means."
  Exit 0
}

$packageArgs = @{
  packageName   = $packageName
  unzipLocation = $toolsDir
  fileType      = 'MSI'
  url           = "https://github.com/PowerShell/PowerShell/releases/download/v$version/PowerShell-$version-win-x86.msi"
  url64bit      = "https://github.com/PowerShell/PowerShell/releases/download/v$version/PowerShell-$version-win-x64.msi"

  softwareName  = "PowerShell-6.0.*"

  checksum      = '5A6D894329C5B2E8FF358FEC746AA1B56A7144DE98B2DEC5A9589C9EB2189427'
  checksumType  = 'sha256'
  checksum64    = 'A68C4AF35E36701CE02B0E0D79B0D8EF5E6D978A496A8B025CFA9F6BF08BC177'
  checksumType64= 'sha256'

  silentArgs    = "/qn /norestart /l*v `"$($env:TEMP)\$($packageName).$($env:chocolateyPackageVersion).MsiInstall.log`"" # ALLUSERS=1 DISABLEDESKTOPSHORTCUT=1 ADDDESKTOPICON=0 ADDSTARTMENU=0
  validExitCodes= @(0, 3010, 1641)
  }

$pp = Get-PackageParameters

if ($pp.CleanUpPath) {
  Write-Host "/CleanUpSystemPath was used, removing all PowerShell Core path entries before installing"
  & "$toolsDir\Reset-PWSHSystemPath.ps1" -PathScope Machine, User -RemoveAllOccurances
}

Install-ChocolateyPackage @packageArgs

Write-Output "************************************************************************************"
Write-Output "*  INSTRUCTIONS: Your system default PowerShell version has not been changed."
Write-Output "*   PowerShell Core $version, was installed to: `"$installfolder`""
Write-Output "*   To start PowerShell Core $version, at a prompt or the start menu execute:"
Write-Output "*      `"pwsh.exe`""
Write-Output "*   Or start it from the desktop or start menu shortcut installed by this package."
Write-Output "************************************************************************************"

Write-Output "**************************************************************************************"
Write-Output "*  As of OpenSSH 0.0.22.0 Universal Installer, a script is distributed that allows   *"
Write-Output "*  setting the default shell for openssh. You could call it with code like this:     *"
Write-Output "*    If (Test-Path `"$env:programfiles\openssh-win64\Set-SSHDefaultShell.ps1`")         *"
Write-Output "*      {& `"$env:programfiles\openssh-win64\Set-SSHDefaultShell.ps1`" [PARAMETERS]}     *"
Write-Output "*  Learn more with this:                                                             *"
Write-Output "*    Get-Help `"$env:programfiles\openssh-win64\Set-SSHDefaultShell.ps1`"               *"
Write-Output "*  Or here:                                                                          *"
Write-Output "*    https://github.com/DarwinJS/ChocoPackages/blob/master/openssh/readme.md         *"
Write-Output "**************************************************************************************"

From: https://raw.githubusercontent.com/PowerShell/PowerShell/master/LICENSE.txt

LICENSE

PowerShell 6.0

Copyright (c) Microsoft Corporation

All rights reserved.

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the ""Software""), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

<#
.SYNOPSIS
  Idempotently removes extra PowerShell Core paths from the machine, user and/or process environment scope with no reordering.

.DESCRIPTION
  Defaults to machine scope and leaving the last sorted path alone.
  Does not touch path if there is nothing to clean.
  Emits one simple log line about it's actions for each scope.

  Also accessible in the powershell-core Chocolatey package by using -params '"/CleanUpSystemPath"'

.PARAMETER PathScope
  Set of machine scopes to clean up.  Valid options are one or more of: Machine, User, Process.
  Default: machine

.PARAMETER RemoveAllOccurences
  By default the cleanup leaves the highest sorted PowerShell Core path alone.  
  This switch causes it to be cleaned up as well.
  Default: false

.EXAMPLE
  .\Reset-PWSHSystemPath.ps1
  
  Removes all PowerShell core paths but the very last one when sorted in ascending order from the Machine level path.
  Good for running on systems that already has at least one valid PowerShell install.

.EXAMPLE
  .\Reset-PWSHSystemPath.ps1 -RemoveAllOccurences
  
  Removes ALL PowerShell core paths from the Machine level path.
  Good for running right before upgrading PowerShell core.
.EXAMPLE
  .\Reset-PWSHSystemPath.ps1 -PathScope Machine, User, Process

  Removes all paths but the very last one when sorted in ascending order.
  Processes all path scopes including current process.
.EXAMPLE
  .\Reset-PWSHSystemPath.ps1 -PathScope Machine, User, Process -RemoveAllOccurencs

  Removes all paths from all path scopes including current process.
#>
param (
  [ValidateSet("machine","user","process")]
  [string[]]$PathScope="machine",
  [switch]$RemoveAllOccurences
)
ForEach ($PathScopeItem in $PathScope)
{
  $AssembledNewPath = $NewPath = ''
  $pathstoremove = @([Environment]::GetEnvironmentVariable("PATH","$PathScopeItem").split(';') | Where { $_ -ilike "*\Program Files\Powershell\6*"})
  If (!$RemoveAllOccurences) 
  {
    $pathstoremove = @($pathstoremove | sort-object | Select-Object -skiplast 1)
  }
  Write-Host "Reset-PWSHSystemPath: Found $($pathstoremove.count) paths to remove from $PathScopeItem path scope: $($Pathstoremove -join ', ' | out-string)"
  If ($pathstoremove.count -gt 0)
  {
    foreach ($path in [Environment]::GetEnvironmentVariable("PATH","$PathScopeItem").split(';'))
    {
      If ($Path)
      {
        If ($pathstoremove -inotcontains "$Path")
        {
          [string[]]$Newpath += "$path"
        }
      }
    }
    $AssembledNewPath = ($newpath -join(';')).trimend(';')
    $AssembledNewPath -split ';'
    [Environment]::SetEnvironmentVariable("PATH",$AssembledNewPath,"$PathScopeItem")
  }
}

VERIFICATION
Verification is intended to assist the Chocolatey moderators and community
in verifying that this package's contents are trustworthy.

Retrieve the SHA256 value for the specific release MSI you will install from
this page: https://github.com/PowerShell/PowerShell/releases

Calculate the SHA256 on the file and compare.

The package also contains and performs the checksum even when it has the source
internally.