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* pr743: (maint) Convert function to UTF-8 (GH-739) Get-UninstallRegistryKey / update templates
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| # Get-UninstallRegistryKey | ||
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| Retrieve registry key(s) for system-installed applications from an | ||
| exact or wildcard search. | ||
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| ## Syntax | ||
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| ~~~powershell | ||
| Get-UninstallRegistryKey ` | ||
| -SoftwareName <String> ` | ||
| [-IgnoredArguments <Object[]>] [<CommonParameters>] | ||
| ~~~ | ||
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| ## Description | ||
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| This function will attempt to retrieve a matching registry key for an | ||
| already installed application, usually to be used with a | ||
| chocolateyUninstall.ps1 automation script. | ||
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| The function also prevents `Get-ItemProperty` from failing when | ||
| handling wrongly encoded registry keys. | ||
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| ## Notes | ||
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| Available in 0.9.10+. If you need to maintain compatibility with pre | ||
| 0.9.10, please add the following to your nuspec: | ||
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| ~~~xml | ||
| <dependencies> | ||
| <dependency id="chocolatey-uninstall.extension" /> | ||
| </dependencies> | ||
| ~~~ | ||
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| ## Aliases | ||
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| `Get-InstallRegistryKey` | ||
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| ## Examples | ||
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| **EXAMPLE 1** | ||
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| ~~~powershell | ||
| # Software name in Programs and Features is "Gpg4Win (2.3.0)" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Gpg4win*" | ||
| $key.DisplayName | ||
| ~~~ | ||
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| **EXAMPLE 2** | ||
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| ~~~powershell | ||
| # Software name is "Launchy 2.5" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Launchy*" | ||
| $key.UninstallString | ||
| ~~~ | ||
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| **EXAMPLE 3** | ||
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| ~~~powershell | ||
| # Software name is "Mozilla Firefox" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Mozilla Firefox" | ||
| $key.UninstallString | ||
| ~~~ | ||
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| ## Inputs | ||
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| None | ||
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| ## Outputs | ||
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| None | ||
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| ## Parameters | ||
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| ### -SoftwareName <String> | ||
| Part or all of the Display Name as you see it in Programs and Features. | ||
| It should be enough to be unique. | ||
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| If the display name contains a version number, such as "Launchy 2.5", | ||
| it is recommended you use a fuzzy search "Launchy*" (the wildcard '*') | ||
| as if the version is upgraded or autoupgraded, suddenly the uninstall | ||
| script will stop working and it may not be clear as to what went wrong | ||
| at first. | ||
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| Property | Value | ||
| ---------------------- | -------------- | ||
| Aliases | | ||
| Required? | true | ||
| Position? | 1 | ||
| Default Value | | ||
| Accept Pipeline Input? | true (ByValue) | ||
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| ### -IgnoredArguments [<Object[]>] | ||
| Property | Value | ||
| ---------------------- | ----- | ||
| Aliases | | ||
| Required? | false | ||
| Position? | named | ||
| Default Value | | ||
| Accept Pipeline Input? | false | ||
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| ### <CommonParameters> | ||
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| This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see `about_CommonParameters` http://go.microsoft.com/fwlink/p/?LinkID=113216 . | ||
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| ## Links | ||
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| * [[Install-ChocolateyPackage|HelpersInstallChocolateyPackage]] | ||
| * [[Install-ChocolateyInstallPackage|HelpersInstallChocolateyInstallPackage]] | ||
| * [[Uninstall-ChocolateyPackage|HelpersUninstallChocolateyPackage]] | ||
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| [[Function Reference|HelpersReference]] | ||
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| ***NOTE:*** This documentation has been automatically generated from `Import-Module "$env:ChocolateyInstall\helpers\chocolateyInstaller.psm1" -Force; Get-Help Get-UninstallRegistryKey -Full`. |
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src/chocolatey.resources/helpers/functions/Get-UninstallRegistryKey.ps1
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| # Copyright © 2011 - Present RealDimensions Software, LLC | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
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| function Get-UninstallRegistryKey { | ||
| <# | ||
| .SYNOPSIS | ||
| Retrieve registry key(s) for system-installed applications from an | ||
| exact or wildcard search. | ||
| .DESCRIPTION | ||
| This function will attempt to retrieve a matching registry key for an | ||
| already installed application, usually to be used with a | ||
| chocolateyUninstall.ps1 automation script. | ||
| The function also prevents `Get-ItemProperty` from failing when | ||
| handling wrongly encoded registry keys. | ||
| .NOTES | ||
| Available in 0.9.10+. If you need to maintain compatibility with pre | ||
| 0.9.10, please add the following to your nuspec: | ||
| ~~~xml | ||
| <dependencies> | ||
| <dependency id="chocolatey-uninstall.extension" /> | ||
| </dependencies> | ||
| ~~~ | ||
| .INPUTS | ||
| String | ||
| .OUTPUTS | ||
| This function searches registry objects and returns PSCustomObject of | ||
| the matched key's properties. | ||
| Retrieve properties with dot notation, for example: | ||
| `$key.UninstallString` | ||
| .PARAMETER SoftwareName | ||
| Part or all of the Display Name as you see it in Programs and Features. | ||
| It should be enough to be unique. | ||
| If the display name contains a version number, such as "Launchy 2.5", | ||
| it is recommended you use a fuzzy search "Launchy*" (the wildcard '*') | ||
| as if the version is upgraded or autoupgraded, suddenly the uninstall | ||
| script will stop working and it may not be clear as to what went wrong | ||
| at first. | ||
| .EXAMPLE | ||
| > | ||
| # Software name in Programs and Features is "Gpg4Win (2.3.0)" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Gpg4win*" | ||
| $key.DisplayName | ||
| .EXAMPLE | ||
| > | ||
| # Software name is "Launchy 2.5" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Launchy*" | ||
| $key.UninstallString | ||
| .EXAMPLE | ||
| > | ||
| # Software name is "Mozilla Firefox" | ||
| [array]$key = Get-UninstallRegistryKey -SoftwareName "Mozilla Firefox" | ||
| $key.UninstallString | ||
| .LINK | ||
| Install-ChocolateyPackage | ||
| .LINK | ||
| Install-ChocolateyInstallPackage | ||
| .LINK | ||
| Uninstall-ChocolateyPackage | ||
| #> | ||
| [CmdletBinding()] | ||
| param( | ||
| [parameter(Mandatory=$true, Position=0, ValueFromPipeline=$true)] | ||
| [string] $softwareName, | ||
| [parameter(ValueFromRemainingArguments = $true)][Object[]] $ignoredArguments | ||
| ) | ||
| Write-Debug "Running 'Get-UninstallRegistryKey' for `'$env:ChocolateyPackageName`' with SoftwareName:`'$softwareName`'"; | ||
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| if ($softwareName -eq $null -or $softwareName -eq '') { | ||
| throw "$SoftwareName cannot be empty for Get-UninstallRegistryKey" | ||
| } | ||
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| $ErrorActionPreference = 'Stop' | ||
| $local_key = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' | ||
| $machine_key = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*' | ||
| $machine_key6432 = 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*' | ||
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| Write-Verbose "Retrieving all uninstall registry keys" | ||
| [array]$keys = Get-ChildItem -Path @($machine_key6432, $machine_key, $local_key) ` | ||
| -ErrorAction SilentlyContinue | ||
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| Write-Debug "Error handling check: Get-ItemProperty will fail if a registry key is written incorrectly." | ||
| Write-Debug "If such a key is found, loop up to 10 times to try to bypass all badKeys" | ||
| [int]$maxAttempts = 10 | ||
| for ([int]$attempt = 1; $attempt -le $maxAttempts; $attempt++) { | ||
| [bool]$success = $FALSE | ||
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| try { | ||
| [array]$foundKey = Get-ItemProperty -Path $keys.PsPath ` | ||
| -ErrorAction SilentlyContinue ` | ||
| | Where-Object { $_.DisplayName -like $softwareName } | ||
| $success = $TRUE | ||
| } catch { | ||
| Write-Debug "Found bad key." | ||
| foreach ($key in $keys){ try { Get-ItemProperty $key.PsPath > $null } catch { $badKey = $key.PsPath }} | ||
| Write-Verbose "Skipping bad key: $($key.PsPath)" | ||
| [array]$keys = Get-ChildItem -Path @($machine_key6432, $machine_key, $local_key) ` | ||
| -ErrorAction SilentlyContinue ` | ||
| | Where-Object { $badKey -NotContains $_.PsPath } | ||
| } | ||
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| if ($success) { break; } | ||
| } | ||
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| return $foundKey | ||
| } | ||
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| Set-Alias Get-InstallRegistryKey Get-UninstallRegistryKey |
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