Ghostscript (Install)

The files in the base, psi, lib, toolbin, examples, doc, man and
iccprofiles directories (folders), and pcl, xps and gpdl
directories (folders), if included, and any subdirectories
(sub-folders) thereof are part of GPL Ghostscript.

The files in the Resource directory and any subdirectories thereof
are also part of GPL Ghostscript, with the explicit exception of
the files in the CMap subdirectory (except "Identity-UTF16-H",
which is part of GPL Ghostscript). The CMap files are copyright
Adobe Systems Incorporated and covered by a separate, Affero GPL
compatible license.

Additionally, the font files (in Resource/Font) are distributed
under the AGPL with the following exemption:

As a special exception, permission is granted to include these font
programs in a Postscript or PDF file that consists of a document that
contains text to be displayed or printed using this font, regardless
of the conditions or license applying to the document itself.


The files under the jpegxr directory and any subdirectories
thereof are distributed under a no cost, open source license
granted by the ITU/ISO/IEC but it is not Affero GPL
compatible - see jpegxr/COPYRIGHT.txt for details.

GPL Ghostscript is free software; you can redistribute it and/or
modify it under the terms of the GNU Affero General Public License
as published by the Free Software Foundation, either version 3
of the License, or (at your option) any later version.

GPL Ghostscript 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
Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public
License along with this program so you can know your rights and
responsibilities. It should be in a file named doc/COPYING. If not,
write to the Free Software Foundation, Inc., 59 Temple Place Suite
330, Boston, MA 02111-1307, USA.

---

GPL Ghostscript contains an implementation of techniques covered
by US Patents 5,055,942 and 5,917,614, and corresponding
international patents. These patents are licensed for use with
GPL Ghostscript under the following grant:

Whereas, Raph Levien (hereinafter "Inventor") has obtained patent
protection for related technology (hereinafter "Patented
Technology"), Inventor wishes to aid the the GNU free software
project in achieving its goals, and Inventor also wishes to
increase public awareness of Patented Technology, Inventor hereby
grants a fully paid up, nonexclusive, royalty free license to
practice the patents listed below ("the Patents") if and only if
practiced in conjunction with software distributed under the
terms of any version of the GNU Affero General Public License as
published by the Free Software Foundation, 59 Temple Place, Suite
330, Boston, MA 02111. Inventor reserves all other rights,
including without limitation, licensing for software not
distributed under the GNU Affero General Public License.

5055942 Photographic image reproduction device using digital
halftoning to screen images allowing adjustable coarseness

5917614 Method and apparatus for error diffusion screening of
images with improved smoothness in highlight and shadow
regions

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

The embedded software have been downloaded from the listed download
location on <https://ghostscript.com/download/gsdnld.html>
and can be verified by doing the following:

1. Download the following:
  32-Bit software: <https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs923/gs923w32.exe>
  64-Bit software: <https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs923/gs923w64.exe>
2. Get the checksum using one of the following methods:
  - Using powershell function 'Get-FileHash'
  - Use chocolatey utility 'checksum.exe'
3. The checksums should match the following:

  checksum type: sha256
  checksum32: 5879B9970007490E62F1C1D9D6688BB633A069CDD5FC466DADB9EA8114C8C75A
  checksum64: 9E614CBAC9F674710DE965D9847ACE29127D71DC1875E48517F4ABCE0E324400

The file 'LICENSE.txt' has been obtained from <http://git.ghostscript.com/?p=ghostpdl.git;a=blob_plain;f=LICENSE;h=572496a331cefa0933a9e997374f5e7dde3b95c8;hb=HEAD>

$ErrorActionPreference = 'Stop';

$toolsPath = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"

$filePath32 = "$toolsPath\gs923w32.exe"
$filePath64 = "$toolsPath\gs923w64.exe"

$filePath = if ((Get-OSArchitectureWidth 64) -and $env:chocolateyForceX86 -ne $true) {
  Write-Host "Installing 64 bit version" ; $filePath64
} else { Write-Host "Installing 32 bit version" ; $filePath32 }

$packageArgs = @{
  packageName = $env:ChocolateyPackageName
  fileType       = 'exe'
  file           = $filePath
  softwareName   = 'GPL Ghostscript'
  silentArgs     = '/S'
  validExitCodes = @(0)
}

Install-ChocolateyInstallPackage @packageArgs

Remove-Item -Force -ea 0 "$toolsPath\*.$($packageArgs.fileType)*"

$ErrorActionPreference = 'Stop';

$packageArgs = @{
  packageName   = $env:ChocolateyPackageName
  softwareName  = 'GPL Ghostscript'
  fileType      = 'exe'
  silentArgs    = '/S'
  validExitCodes= @(@(0))
}

$uninstalled = $false

[array]$key = Get-UninstallRegistryKey @packageArgs

if ($key.Count -eq 1) {
  $key | ForEach-Object {
    $packageArgs['file'] = "$($_.UninstallString)"

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

md5: 3F63B5BFF6592BD04D5244AED73D5C89 | sha1: 5D741922A801BF882B1FFF64E9D047AEBB622AC0 | sha256: 5879B9970007490E62F1C1D9D6688BB633A069CDD5FC466DADB9EA8114C8C75A | sha512: 6CF1D13E72C1FCD1FBDC5114D7DFBA996580301047DDCC2EDC9559CF7602B7A0878A856795C728DF864DE86426FDC051BC7992D6666D2A991F676C8B523A1C17

md5: 8499D288543591F172E5F913A765AB25 | sha1: 1AAD0D141C9E9CA6E388FC1DEAF5EDAC23893CEC | sha256: 9E614CBAC9F674710DE965D9847ACE29127D71DC1875E48517F4ABCE0E324400 | sha512: 2AF6E6115A4719DE3EF2CC8BD3E68FD51B4297879BCF2C09326506FF1097C4F1BC781C9D21F95D17ABF13D034BB22B356C46DE4B91AC4C94074FF8F52C010360