Functions/GenXdev.AI/EnsureWinMergeInstalled.ps1
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Part of PowerShell module : GenXdev.AI Original cmdlet filename : EnsureWinMergeInstalled.ps1 Original author : René Vaessen / GenXdev Version : 1.264.2025 ################################################################################ MIT License Copyright 2021-2025 GenXdev Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ################################################################################> ############################################################################### <# .SYNOPSIS Ensures WinMerge is installed and available for file comparison operations. .DESCRIPTION Verifies if WinMerge is installed and properly configured in the system PATH. If not found, installs WinMerge using WinGet and adds it to the user's PATH. Handles the complete installation and configuration process automatically. .EXAMPLE EnsureWinMergeInstalled Ensures WinMerge is installed and properly configured. #> function EnsureWinMergeInstalled { [CmdletBinding()] param() begin { ######################################################################## <# .SYNOPSIS Checks if the WinGet PowerShell module is installed. .DESCRIPTION Attempts to import the Microsoft.WinGet.Client module and verifies its presence. .EXAMPLE IsWinGetInstalled #> function IsWinGetInstalled { # attempt to load the winget module silently Microsoft.PowerShell.Core\Import-Module 'Microsoft.WinGet.Client' ` -ErrorAction SilentlyContinue # verify if module was loaded successfully $ModuleObj = Microsoft.PowerShell.Core\Get-Module 'Microsoft.WinGet.Client' ` -ErrorAction SilentlyContinue return $null -ne $ModuleObj } ######################################################################## <# .SYNOPSIS Installs the WinGet PowerShell module. .DESCRIPTION Installs and imports the Microsoft.WinGet.Client module for package management. .EXAMPLE InstallWinGet #> function InstallWinGet { # install and import winget module with force to ensure success Microsoft.PowerShell.Utility\Write-Verbose 'Installing WinGet PowerShell client...' $null = PowerShellGet\Install-Module 'Microsoft.WinGet.Client' -Force -AllowClobber # load the newly installed module Microsoft.PowerShell.Core\Import-Module 'Microsoft.WinGet.Client' } } process { # verify if winmerge is available in current session if (@(Microsoft.PowerShell.Core\Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue).Length -eq 0) { # define the standard installation location for winmerge $winMergePath = Microsoft.PowerShell.Management\Join-Path $env:LOCALAPPDATA 'Programs\WinMerge' # get the current user's path environment variable $currentPath = [Environment]::GetEnvironmentVariable('PATH', 'User') # ensure winmerge path exists in user's path variable if ($currentPath -notlike "*$winMergePath*") { Microsoft.PowerShell.Utility\Write-Verbose 'Adding WinMerge to system PATH...' [Environment]::SetEnvironmentVariable( 'PATH', "$currentPath;$winMergePath", 'User') } # update current session's path only if not already present if ($env:PATH -notlike "*$winMergePath*") { $env:PATH = "$env:PATH;$winMergePath" } # check if winmerge is now accessible if (@(Microsoft.PowerShell.Core\Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue).Length -gt 0) { return } Microsoft.PowerShell.Utility\Write-Host 'WinMerge not found. Installing WinMerge...' # ensure winget is available for installation if (-not (IsWinGetInstalled)) { InstallWinGet } # install winmerge using winget package manager $null = Microsoft.WinGet.Client\Install-WinGetPackage -Id 'WinMerge.WinMerge' -Force # define the standard installation location for winmerge $winMergePath = Microsoft.PowerShell.Management\Join-Path $env:LOCALAPPDATA 'Programs\WinMerge' # get the current user's path environment variable $currentPath = [Environment]::GetEnvironmentVariable('PATH', 'User') # ensure winmerge path exists in user's path variable if ($currentPath -notlike "*$winMergePath*") { Microsoft.PowerShell.Utility\Write-Verbose 'Adding WinMerge to system PATH...' [Environment]::SetEnvironmentVariable( 'PATH', "$currentPath;$winMergePath", 'User') } # update current session's path only if not already present if ($env:PATH -notlike "*$winMergePath*") { $env:PATH = "$env:PATH;$winMergePath" } # verify successful installation if (-not (Microsoft.PowerShell.Core\Get-Command 'WinMergeU.exe' -ErrorAction SilentlyContinue)) { throw 'WinMerge installation failed.' } } } end { } } |