Refactor uninstallation

[Ash258]

Implemented in shovel 0.5

• Part of scoop uninstall blocked when app is running #488

1. Remove similar uninstallation code
   • libexec/uninstall.ps1 and bin/uninstall.ps1 use similar/duplicated code for uninstallation
     • https://github.com/lukesampson/scoop/blob/99b5afafa086246aac65d63160218c38b014650d/bin/uninstall.ps1#L18-L44
     • https://github.com/lukesampson/scoop/blob/99b5afafa086246aac65d63160218c38b014650d/libexec/scoop-uninstall.ps1#L42-L80
   • Move adequate uninstallation functions into lib/uninstall.ps1
   • Duplicated function:
     • Scoop-UninstallApplication
       • params:
         • [String] $AppName
           • Maybe default to *
         • [Switch] $Global
       • return:
         • Boolean if some error occured
2. Implement uninstallation of running applications
   • function Scoop-GetProcess($appname, $global) into core/install/uninstall
     • Return whole Get-Process

      <#
      .SYNOPSIS
      	Get all running processes for given app.
      .PARAMETER AppName
      	Name of the application.
      	Default to return all running applications. (Mainly for uninstallatino of whole scoop)
      .PARAMETER Global
      	Get process for globally installed applications.
      #>
      function Scoop-GetProcess {
      	param(
      		[String] $AppName = '*',
      		[Switch] $Global
      	)
     
      	$procs = Get-Process # Avoid calling twice for each path
      	if ($Global) {
      		return $procs | Where-Object { $_.Path -like "$globaldir\apps\$AppName\*" }
      	} else {
      		return $procs | Where-Object { $_.Path -like "$scoopdir\apps\$AppName\*" }
      	}
      }

   • Adopt libexecs for Get-Process
     • Uninstall
     • Update
3. ❓ Add force parameter to uninstall for killing running applications

[TheRandomLabs]

Not sure if this is the right place for this, but would it be possible to add an option to run the uninstaller script regardless of whether the application is still running? Corsair iCUE's uninstaller automatically kills all of its processes before uninstalling, but it's unnecessarily difficult to have to kill all Corsair iCUE processes before uninstalling, as they also include services.