Functions/GenXdev.AI/AssureWinMergeInstalled.ps1
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################################################################################ <# .SYNOPSIS Ensures WinMerge is installed and available in the system PATH. .DESCRIPTION This function checks if WinMerge is installed and accessible via command line. If not found, it will install WinMerge using WinGet and configure the system PATH accordingly. .EXAMPLE AssureWinMergeInstalled #> function AssureWinMergeInstalled { [CmdletBinding()] param() begin { function IsWinGetInstalled { # attempt to import the winget module Import-Module "Microsoft.WinGet.Client" -ErrorAction SilentlyContinue $module = Get-Module "Microsoft.WinGet.Client" ` -ErrorAction SilentlyContinue return $null -ne $module } function InstallWinGet { Write-Verbose "Installing WinGet PowerShell client..." Install-Module "Microsoft.WinGet.Client" -Force -AllowClobber Import-Module "Microsoft.WinGet.Client" } } process { # check if winmerge command is available if (@(Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue).Length -eq 0) { # get the default winmerge installation path $winMergePath = Join-Path $env:LOCALAPPDATA "Programs\WinMerge" # add winmerge path to user environment if not present $currentPath = [Environment]::GetEnvironmentVariable('PATH', 'User') if ($currentPath -notlike "*$winMergePath*") { Write-Verbose "Adding WinMerge to PATH..." [Environment]::SetEnvironmentVariable( 'PATH', "$currentPath;$winMergePath", 'User') # update current session path $env:PATH = [Environment]::GetEnvironmentVariable('PATH', 'User') } # verify if winmerge is now available if (@(Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue).Length -gt 0) { return } Write-Host "WinMerge not found. Installing WinMerge..." # ensure winget is available for installation if (-not (IsWinGetInstalled)) { InstallWinGet } # install winmerge using winget Install-WinGetPackage -Id 'WinMerge.WinMerge' -Force # verify installation success if (-not (Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue)) { Write-Error "WinMerge installation failed." return } } } end {} } ################################################################################ |