7-Zip (Install)

  7-Zip
  ~~~~~
  License for use and distribution
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  7-Zip Copyright (C) 1999-2016 Igor Pavlov.

  Licenses for files are:

    1) 7z.dll: GNU LGPL + unRAR restriction
    2) All other files:  GNU LGPL

  The GNU LGPL + unRAR restriction means that you must follow both
  GNU LGPL rules and unRAR restriction rules.


  Note:
    You can use 7-Zip on any computer, including a computer in a commercial
    organization. You don't need to register or pay for 7-Zip.


  GNU LGPL information
  --------------------

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You can receive a copy of the GNU Lesser General Public License from
    http://www.gnu.org/


  unRAR restriction
  -----------------

    The decompression engine for RAR archives was developed using source
    code of unRAR program.
    All copyrights to original unRAR code are owned by Alexander Roshal.

    The license for original unRAR code has the following restriction:

      The unRAR sources cannot be used to re-create the RAR compression algorithm,
      which is proprietary. Distribution of modified unRAR sources in separate form
      or as a part of other software is permitted, provided that it is clearly
      stated in the documentation and source comments that the code may
      not be used to develop a RAR (WinRAR) compatible archiver.


  --
  Igor Pavlov

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

The installer have been downloaded from their official download link listed on <http://www.7-zip.org/download.html>
and can be verified like this:

1. Download the following installers:
  32-Bit: <http://www.7-zip.org/a/7z1604.exe>
  64-Bit: <http://www.7-zip.org/a/7z1604-x64.exe>
2. You can use one of the following methods to obtain the checksum
  - Use powershell function 'Get-Filehash'
  - Use chocolatey utility 'checksum.exe'

  checksum type: 
  checksum32: DBB2B11DEA9F4432291E2CBEFE14EBE05E021940E983A37E113600EEE55DAA95
  checksum64: 9BB4DC4FAB2A2A45C15723C259DC2F7313C89A5AC55AB7C3F76BBA26EDC8BCAA

File 'LICENSE.txt' is obtained from <http://www.7-zip.org/license.txt>

md5: DA7DB29E783780F3A581E6E0BF4C595D | sha1: DD1CB1163C5572951C9CD27F5A8DD550B33C58A4 | sha256: DBB2B11DEA9F4432291E2CBEFE14EBE05E021940E983A37E113600EEE55DAA95 | sha512: 939869D9A60571C2F380FFE29EC40E7930D47E8295A2995E9EC56143319584B809FDDD39A6E9DF6E4B7C5E29B4925F588CA483E3C6F6758C5DB54E13E2A3388C

md5: 04584F3AED5B27FD0AC2751B36273D94 | sha1: 338A5CC5200E98EDD644FC21807FDBE59910C4D0 | sha256: 9BB4DC4FAB2A2A45C15723C259DC2F7313C89A5AC55AB7C3F76BBA26EDC8BCAA | sha512: C5EC75C033970FEFE0183285E35360308CAA6094DED453BC5542761CD2B569A176183CA357BBDAD764FA55FF42ED1D2F58F4BFEC0BE35B544BECF32F427EB6FF

$ErrorActionPreference = 'Stop'

$toolsDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
$filePath = if ((Get-ProcessorBits 64) -and $env:chocolateyForceX86 -ne $true) {
       Write-Host "Installing 64 bit version" ; gi $toolsDir\*_x64.exe }
else { Write-Host "Installing 32 bit version" ; gi $toolsDir\*_x32.exe }

$packageArgs = @{
  packageName    = '7zip.install'
  fileType       = 'exe'
  softwareName   = '7-zip*'
  file           = $filePath
  silentArgs     = '/S'
  validExitCodes = @(0)
}
Install-ChocolateyInstallPackage @packageArgs
rm $toolsDir\*.exe -ea 0 -force

# 7z installer may close explorer
if (!(ps explorer -ea 0)) {
    # Only start explorer if the file exists; Server Core installs do not have it.
    if (!(Test-Path "$env:windir\explorer.exe")) {
        start explorer.exe
    }
}

$installLocation = Get-AppInstallLocation $packageArgs.softwareName
if (!$installLocation)  { Write-Warning "Can't find 7zip install location"; return }
Write-Host "7zip installed to '$installLocation'"

Install-BinFile '7z' $installLocation\7z.exe

$ErrorActionPreference = 'Stop';

$packageName = '7zip.install'

$uninstalled = $false
[array]$key = Get-UninstallRegistryKey -SoftwareName '7-zip*'

if ($key.Count -eq 1) {
  $key | % {
  $packageArgs = @{
    packageName    = $packageName
    fileType       = 'EXE'
    silentArgs     = '/S'
    validExitCodes = @(0)
    file           = "$($_.UninstallString)"
  }

    Uninstall-ChocolateyPackage @packageArgs
  }
} elseif ($key.Count -eq 0) {
  Write-Warning "$packageName has already been uninstalled by other means."
} elseif ($key.Count -gt 1) {
  Write-Warning "$($key.Count) matches found!"
  Write-Warning "To prevent accidental data loss, no programs will be uninstalled."
  Write-Warning "Please alert package maintainer the following keys were matched:"
  $key | % {Write-Warning "- $($_.DisplayName)"}
}