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using namespace Microsoft.PowerShell.Commands
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using namespace System
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using namespace System.IO
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using namespace System.Management.Automation
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function Get-CurrentPath {
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<#
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.SYNOPSIS
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Returns the current location's provider path.
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.OUTPUTS
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Returns the ProviderPath except when the current location matches the start to a UNC path.
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In those cases the $executionContext.SessionState.Path.CurrentLocation.Path is returned instead.
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#>
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[CmdletBinding()]
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[OutputType([string])]
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param()
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$ProviderPath = (Get-Location).ProviderPath
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$result = if ($ProviderPath -match '\\\\') {
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$executionContext.SessionState.Path.CurrentLocation.Path
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} else {
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$ProviderPath
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}
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return $result
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}
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function Get-LastExecutionDuration {
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<#
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.SYNOPSIS
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Returns the duration of the last executed command.
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This logic was taken from Steve Lee's powershell profile:
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https://gist.github.com/SteveL-MSFT/a208d2bd924691bae7ec7904cab0bd8e
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#>
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[CmdletBinding()]
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[OutputType([string])]
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param(
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[Parameter(Mandatory=$false)]
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[HistoryInfo]$LastCommand = (Get-History -Count 1 -ErrorAction Ignore)
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)
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if ($null -ne $LastCommand) {
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$cmdTime = if ($PSVersionTable.PSEdition -eq 'Desktop') {
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($LastCommand.EndExecutionTime - $LastCommand.StartExecutionTime).TotalMilliseconds
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} else {
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$LastCommand.Duration.TotalMilliseconds
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}
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$units = 'ms'
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if ($cmdTime -ge 1000) {
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$units = 's'
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$cmdTime = $LastCommand.Duration.TotalSeconds
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if ($cmdTime -ge 60) {
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$units = 'm'
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$cmdTIme = $LastCommand.Duration.TotalMinutes
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}
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}
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if ($cmdTime) { return "$($cmdTime.ToString('#.##'))$units " }
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}
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return ''
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}
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function Get-PSProfileEditionString {
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<#
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.SYNOPSIS
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Returns a formatted string to more easily determine which platform is currently running.
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#>
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[CmdletBinding()]
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[OutputType([string])]
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param()
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$Edition = if ($PSVersionTable.PSEdition -eq 'Desktop') {
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'PS'
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} elseif ($PSVersionTable.PSEdition -eq 'Core') {
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'Pwsh' + (. {if ($IsLinux) { '-Linux' } elseif ($IsMacOS) { '-MacOS' } })
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} elseif ([string]::IsNullOrWhiteSpace($PSVersionTable.PSEdition.ToString()) -eq $false) {
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$PSVersionTable.PSEdition.ToString()
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} else {
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[string]::Empty
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}
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return $Edition
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}
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function Get-PSVersionString {
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<#
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.SYNOPSIS
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Returns a string containing the PSProfileEditionString and the PSVersion major minor and patch information.
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#>
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[CmdletBinding()]
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[OutputType([string])]
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param()
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$Psv = $PSVersionTable.PSVersion
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return (Get-PSProfileEditionString) +" v$($Psv.Major).$($Psv.Minor).$($Psv.Patch)"
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}
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function Get-ShellPath {
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<#
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.SYNOPSIS
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Creates a .shell directory in the users home and returns the directoryinfo object to the user.
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.DESCRIPTION
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Creates a .shell directory under the users home directory (or the windows users home directory for WSL) and returns
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the directoryinfo object to the user.
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#>
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[CmdletBinding()]
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[OutputType([System.IO.DirectoryInfo])]
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param()
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$ShellPath = if ($IsLinux -and [IO.Directory]::Exists("/mnt/c/Users/$env:USER")) {
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Join-Path -Path "/mnt/c/Users/$env:USER" -ChildPath '.shell'
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} else {
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Join-Path -Path (. { if ($env:OS -eq 'Windows_NT') { $HOME } else { $env:HOME } }) -ChildPath '.shell'
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}
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# Create the ShellPath if it doesn't exist.
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return (New-Item -Path $ShellPath -ItemType Directory -Force)
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}
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function Initialize-ProfileModule {
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<#
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.SYNOPSIS
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Initialize-ProfileModule attempts to import a module and will automatically install it if it doesn't exist.
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.PARAMETER Name
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The name of the module to be imported.
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.PARAMETER MinimumVersion
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The minimum version of the module to be imported. Default is '0.0.1'.
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.PARAMETER AllowPrerelease
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Allow the import of prerelease module versions.
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.PARAMETER ArgumentList
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The ArgumentList passed into the Import-Module command.
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#>
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[CmdletBinding()]
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[OutputType([Void])]
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param (
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[Parameter(Mandatory, ValueFromPipeline)]
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[string[]]$Names,
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[Parameter(Mandatory=$false)]
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[string]$MinimumVersion = '0.0.1',
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[Parameter(Mandatory=$false)]
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[switch]$AllowPrerelease,
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[Parameter(Mandatory=$false)]
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[string[]]$ArgumentList = @()
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)
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begin {
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$Scope = if (Test-Admin) { 'AllUsers' } else { 'CurrentUser' }
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$Verbose = if ($PSBoundParameters.ContainsKey('Verbose')) { $PSBoundParameters['Verbose'] } else { $false }
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# Fix missing PSGet versions on windows.
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$PSGet = 'PowerShellGet'
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$PSGV = '2.2.5'
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if (
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($env:OS -eq 'Windows_NT') -and
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($null -eq (Get-Module -Name $PSGet -ListAvailable | Where-Object {$_.Version -eq $PSGV}))
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) {
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$PSApp = if ($IsWindows) { 'pwsh.exe' } else { 'powershell.exe' }
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# Start the update in another process so that we don't have issues with clobbering.
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$InstallPSGet = [Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes(@"
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[Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor
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[Net.SecurityProtocolType]::Tls12
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if (`$null -eq (Get-PackageProvider -Name 'NuGet' -ErrorAction Ignore)) {
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Install-PackageProvider -Name NuGet -Force
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}
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Install-Module -Name '$PSGet' -RequiredVersion '$PSGV' -Scope '$Scope' -Repository 'PSGallery' -AllowClobber -Force$(if ($Verbose) { ' -Verbose' })
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"@
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))
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Start-Process -FilePath $PSApp -Wait -NoNewWindow -ArgumentList '-noprofile', '-ec', $InstallPSGet
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}
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}
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process {
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foreach ($moduleName in $Names){
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$InstallModule = @{
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Name = $moduleName
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MinimumVersion = $MinimumVersion
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AllowPrerelease = $AllowPrerelease
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Scope = $Scope
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Repository = 'PSGallery'
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AcceptLicense = $true
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Force = $true
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Verbose = $Verbose
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}
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$ImportModuleParams = @{
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Name = $moduleName
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MinimumVersion = $MinimumVersion
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Scope = 'Global'
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Verbose = $Verbose
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}
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if ($ArgumentList.Length -gt 0) {
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$ImportModuleParams.Add('ArgumentList', $ArgumentList)
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}
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try {
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Import-Module @ImportModuleParams -ErrorAction Stop
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} catch [FileNotFoundException] {
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Install-Module @InstallModule
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Import-Module @ImportModuleParams
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}
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}
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}
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}
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function New-UserProcessEnvVar {
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<#
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.SYNOPSIS
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Creates a new environment variable with a value (defaulting to the current datetime).
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.PARAMETER VarName
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The name of the new environment variable to create.
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.PARAMETER Value
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The value to put into the environment variable.
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#>
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[CmdletBinding()]
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[OutputType([Void])]
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param (
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[Parameter(Mandatory)]
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[string]$VarName,
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[Parameter(Mandatory = $false)]
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[string]$Value = [DateTime]::Now
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)
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[Environment]::SetEnvironmentVariable( $VarName, $Value, [EnvironmentVariableTarget]::User )
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[Environment]::SetEnvironmentVariable( $VarName, $Value, [EnvironmentVariableTarget]::Process )
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}
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function Set-ProfileLinks {
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<#
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.SYNOPSIS
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This function consolidates all editions of your PowerShell profile by linking them to a common profile file
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located at the specified $ShellPath.
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Any changes made to this profile script will apply across all your PowerShell sessions and editions.
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.DESCRIPTION
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This function is meant to be used with the profile script found here:
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https://gist.github.com/tsmarvin/3ec5df59e030886a9f81a693ba01f785
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The function begins by checking for the ProfileLink environment variable:
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((Get-PSProfileEditionString) + '_UpdateProfileLinks')
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If the environment variable exists, the function exits without performing any actions.
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If the environment variable does not exist:
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On Windows:
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First determine whether the $CommandPath is hardlinked to the $ShellProfile ($ShellPath + profile.ps1) file.
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If it is not hardlinkd, prompt the user to create a new hardlink between the files.
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All Platforms:
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The function checks if the $CommandPath is linked to the $Profile.CurrentUserAllHosts script.
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If the $Profile.CurrentUserAllHosts script doesn't exist, prompt the user to create a new link.
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On Linux, a symbolic link will be created, while on Windows, a hardlink will be used instead.
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Finally, the function creates the ProfileLink environment variable and sets it to the current date and time.
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.PARAMETER ShellPath
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This parameter specifies the path to the directory where the shell profile script ('profile.ps1') is located.
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.PARAMETER PSProfileEdition
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This parameter represents the PowerShell edition, as determined by the PowerShell Profile script.
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.PARAMETER CommandPath
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This parameter is used to specify the path of the currently executing script.
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#>
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[CmdletBinding()]
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[OutputType([void])]
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param (
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[Parameter(Mandatory)]
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[Validation.ValidatePathExists('File')]
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[string]$CommandPath
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)
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# The path to the shell profile script
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$ShellProfile = Join-Path -Path (Get-ShellPath).FullName -ChildPath 'profile.ps1'
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# The name of the environment variable storing the status of profile linking
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$ProfileLink = (Get-PSProfileEditionString) + '_UpdateProfileLinks'
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# Check if the ProfileLink environment variable is empty
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if ([string]::IsNullOrEmpty((Get-Item -Path "Env:\$ProfileLink" -ErrorAction Ignore).Value)) {
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# If the operating system is Windows and the executing script is not linked to the shell profile script
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if (
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($env:OS -eq 'Windows_NT') -and (
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($null -eq (Get-Item -Path $CommandPath).Target) -or
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((Get-Item -Path $ShellProfile -ErrorAction Ignore).Target -notcontains $CommandPath)
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)
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) {
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# Parameters for creating a new hard link
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$NewHardLinkParams = [hashtable]@{
|
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ItemType = 'HardLink'
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Force = $true
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Verbose = $true
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}
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|
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# If the current executing script is not the same as the shell profile script
|
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if ($CommandPath -ne $ShellProfile) {
|
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Write-Warning (
|
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"Currently executing profile script '$CommandPath' " +
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"has not been linked to the ShellProfile '$ShellProfile'."
|
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)
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# Prompt the user to link the current executing script to the shell profile script
|
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if ((Read-Host "Link '$CommandPath' to '$ShellProfile'? (Y/N)") -ieq 'Y') {
|
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New-Item -Path $ShellProfile -Value $CommandPath @NewHardLinkParams | Out-Null
|
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}
|
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}
|
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|
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if <# the $Profile.CurrentUserAllHosts is not linked to the shell profile script #> (
|
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($null -eq (Get-Item -Path $Profile.CurrentUserAllHosts -ErrorAction Ignore).Target) -and
|
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((Resolve-Path -Path $CommandPath) -eq (Resolve-Path -Path $ShellProfile))
|
|
) {
|
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Write-Warning (
|
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"Profile script '$($Profile.CurrentUserAllHosts)' " +
|
|
"has not been linked to the ShellProfile '$ShellProfile'."
|
|
)
|
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# Prompt the user to link the profile for all hosts of the current user to the shell profile script
|
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if ((Read-Host "Link '$($Profile.CurrentUserAllHosts)' to '$ShellProfile'? (Y/N)") -ieq 'Y') {
|
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New-Item -Path $Profile.CurrentUserAllHosts -Value $ShellProfile @NewHardLinkParams | Out-Null
|
|
}
|
|
}
|
|
}
|
|
|
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# If the $Profile.CurrentUserAllHosts script doesn't exist then link it to the shell profile.
|
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if ($null -eq (Get-Item -Path $Profile.CurrentUserAllHosts -ErrorAction Ignore)) {
|
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Write-Warning "PowerShell Profile '$($Profile.CurrentUserAllHosts)' does not exist."
|
|
$LinkProfilePrompt = (. {
|
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"$(if ($env:OS -eq 'Windows_NT') { 'Hard' } else { 'Symbolic' })" +
|
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"Link '$($Profile.CurrentUserAllHosts)' to '$ShellProfile'? (Y/N)"
|
|
})
|
|
|
|
# Prompt the user to link the profile for all hosts of the current user to the shell profile script
|
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if ((Read-Host -Prompt $LinkProfilePrompt) -ieq 'Y') {
|
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$newItemSplat = @{
|
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Path = $Profile.CurrentUserAllHosts
|
|
ItemType = "$(if ($env:OS -eq 'Windows_NT') { 'HardLink' } else { 'SymbolicLink' })"
|
|
Value = $ShellProfile
|
|
Force = $true
|
|
Verbose = $true
|
|
ErrorAction = 'Stop'
|
|
}
|
|
try {
|
|
New-Item @newItemSplat | Out-Null
|
|
} catch {
|
|
Write-Warning (
|
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"Failed to create link between '$($Profile.CurrentUserAllHosts)' and '$ShellProfile'. " +
|
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"Error: $($_.Exception.Message)"
|
|
)
|
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break # Don't run ProfileLinkCreation
|
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}
|
|
}
|
|
}
|
|
|
|
# Create the ProfileLink environment variable with the current date and time
|
|
New-UserProcessEnvVar -VarName $ProfileLink
|
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}
|
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}
|
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|
|
|
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function Set-WindowTitle {
|
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<#
|
|
.SYNOPSIS
|
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Sets the window title based on the current PowerShell session and provider.
|
|
|
|
.DESCRIPTION
|
|
Updates the window title with the PowerShell version, provider name, and adds an [Admin] prefix
|
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if the session is running with administrative privileges.
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#>
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[CmdletBinding()]
|
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[OutputType([Void])]
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param()
|
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|
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try {
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$AdminText = if (Test-Admin) { '[Admin] ' } else { [string]::Empty }
|
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$Host.Ui.RawUi.WindowTitle = "$AdminText$(Get-PSVersionString) [$($pwd.Provider.Name)]"
|
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} catch { <# Do Not Fail #> }
|
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}
|
|
|
|
|
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function Test-Admin {
|
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<#
|
|
.SYNOPSIS
|
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Tests to determine if the user is running the powershell process as an admin.
|
|
|
|
.DESCRIPTION
|
|
On Windows, checks the security group to determine if the user is a member of the local admin group.
|
|
On Linux, checks to see if the user is root, or has sudo enabled.
|
|
On MacOs, always returns false at this time.
|
|
#>
|
|
[CmdletBinding()]
|
|
[OutputType([boolean])]
|
|
param()
|
|
|
|
$IsAdmin = if ($env:OS -eq 'Windows_NT') {
|
|
[Security.Principal.WindowsPrincipal]::New(
|
|
[Security.Principal.WindowsIdentity]::GetCurrent()
|
|
).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
|
|
} elseif ($IsLinux -and (($env:USER -ieq 'root') -or ([string]::IsNullOrWhiteSpace($env:SUDO_USER) -eq $false))) {
|
|
$true
|
|
} else {
|
|
$false
|
|
}
|
|
|
|
return $IsAdmin
|
|
}
|
|
|
|
|
|
function Update-ProfileScriptFromGist {
|
|
<#
|
|
.SYNOPSIS
|
|
Update the profile script every 25+ hours.
|
|
|
|
.DESCRIPTION
|
|
Update-ProfileScriptFromGist checks the last update time from the environment variable 'ProfileGistUpdate'.
|
|
If it has been more than a 25 hours since the last update, the function starts a new job that updates the profile
|
|
script.
|
|
|
|
This function is meant to be used with the profile script found here:
|
|
https://gist.github.com/tsmarvin/3ec5df59e030886a9f81a693ba01f785
|
|
|
|
.PARAMETER CommandPath
|
|
The path to the PowerShell profile script.
|
|
#>
|
|
[CmdletBinding()]
|
|
[OutputType([System.Management.Automation.Job],[string])]
|
|
param (
|
|
[Parameter(Mandatory)]
|
|
[Validation.ValidatePathExists('File')]
|
|
[string]$CommandPath,
|
|
|
|
[Parameter(Mandatory=$false)]
|
|
[ValidateRange(0, [int]::MaxValue)]
|
|
[int]$UpdateIntervalHours = 25
|
|
)
|
|
|
|
$EnvVarName = 'ProfileGistUpdate'
|
|
|
|
$EnvVarValue = (Get-Item -Path "Env:\$EnvVarName" -ErrorAction Ignore).Value
|
|
$UpdateTime = if ([string]::IsNullOrWhiteSpace($EnvVarValue) -eq $false) {
|
|
[DateTime]::Parse($EnvVarValue)
|
|
} else {
|
|
[DateTime]::Now.AddHours(-$UpdateIntervalHours)
|
|
}
|
|
|
|
$result = if ($UpdateTime.AddDays(1) -lt [DateTime]::Now) {
|
|
Start-BackgroundGistScriptUpdate -LocalScriptPath $CommandPath
|
|
New-UserProcessEnvVar -VarName $EnvVarName
|
|
} else {
|
|
[string]::Empty
|
|
}
|
|
|
|
return $result
|
|
}
|
|
|
|
|
|
if ($IsWindows) {
|
|
# Add Support for retrieving hardlink definitions on windows using dotnet core.
|
|
# Recreates the "Target" property with integrated hardlink support which emulates Windows PowerShell functionality.
|
|
# This c# code was based on https://github.com/PowerShell/PowerShell/issues/15139#issuecomment-812567971
|
|
# This functionality is specifically used by Set-ProfileLinks - but its also just nice to have in general.
|
|
$AddWinUtilNTFS = [hashtable]@{
|
|
Name = 'NTFS'
|
|
Namespace = 'WinUtil'
|
|
UsingNamespace = 'System.Text', 'System.Collections.Generic', 'System.IO'
|
|
MemberDefinition = @'
|
|
#region WinAPI P/Invoke declarations
|
|
public static readonly IntPtr INVALID_HANDLE_VALUE = (IntPtr)(-1); // 0xffffffff;
|
|
public const int MAX_PATH = 65535; // Max. NTFS path length.
|
|
|
|
[DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
|
|
static extern IntPtr FindFirstFileNameW(
|
|
string lpFileName,
|
|
uint dwFlags,
|
|
ref uint StringLength,
|
|
StringBuilder LinkName
|
|
);
|
|
|
|
[DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
|
|
static extern bool FindNextFileNameW(
|
|
IntPtr hFindStream,
|
|
ref uint StringLength,
|
|
StringBuilder LinkName
|
|
);
|
|
|
|
[DllImport("kernel32.dll", SetLastError = true)]
|
|
static extern bool FindClose(IntPtr hFindFile);
|
|
|
|
[DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
|
|
static extern bool GetVolumePathName(
|
|
string lpszFileName,
|
|
[Out] StringBuilder lpszVolumePathName,
|
|
uint cchBufferLength
|
|
);
|
|
#endregion
|
|
|
|
/// <summary>
|
|
/// Returns the enumeration of hardlinks for the given filepath excluding the input file itself.
|
|
/// </summary>
|
|
/// <param name="filePath"></param>
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/// <returns>
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/// If the file has one or more hardlink (including itself) then the enumerate hardlinks (excluding itself)
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/// are returned. <br/>
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///
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/// This means that if the hardlink only links to itself then you will receive an empty array. <br/>
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///
|
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/// If the target volume doesn't support enumerating hardlinks, the filePath doesn't exist, or the filePath
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/// is the path to a directory than a null value is returned instead.
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/// </returns>
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public static string[] GetHardLinks(string filePath) {
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string fullFilePath = Path.GetFullPath(filePath);
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|
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// If the filepath is a directory or the file does not exist then return early.
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if (Directory.Exists(fullFilePath) || File.Exists(fullFilePath) == false) { return null; }
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|
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// Generate Volume Path
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StringBuilder sbPath = new(MAX_PATH);
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_ = GetVolumePathName(fullFilePath, sbPath, MAX_PATH); // Get target file volume (e.g. "C:\")
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|
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// Trim the trailing "\" from the volume path, to enable simple concatenation with the volume-relative
|
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// paths returned by the FindFirstFileNameW() and FindFirstFileNameW() functions, which have a leading "\"
|
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string volume = sbPath.ToString()[..(sbPath.Length > 0 ? sbPath.Length - 1 : 0)];
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|
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// Loop over and collect all hard links as their full paths.
|
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uint charCount = MAX_PATH; // in/out character-count variable for the WinAPI calls.
|
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IntPtr findHandle;
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if (INVALID_HANDLE_VALUE != (findHandle = FindFirstFileNameW(fullFilePath, 0, ref charCount, sbPath))) {
|
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List<string> result = new();
|
|
// Add each non-self path to the results list
|
|
do {
|
|
string fullHardlinkPath = volume + sbPath.ToString();
|
|
if (fullHardlinkPath.Equals(fullFilePath, StringComparison.OrdinalIgnoreCase) == false) {
|
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result.Add(fullHardlinkPath); // Add the full path to the result list.
|
|
}
|
|
charCount = MAX_PATH; // Prepare for the next FindNextFileNameW() call.
|
|
} while (FindNextFileNameW(findHandle, ref charCount, sbPath));
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|
|
|
FindClose(findHandle);
|
|
return result.ToArray();
|
|
}
|
|
return null;
|
|
}
|
|
'@
|
|
}
|
|
try {
|
|
Add-Type @AddWinUtilNTFS -ErrorAction Stop
|
|
} catch {
|
|
# Don't fail if the type already exists
|
|
if ($_.Exception.Message -ne "Cannot add type. The type name 'WinUtil.NTFS' already exists."){
|
|
throw
|
|
}
|
|
}
|
|
|
|
Update-TypeData -Force -TypeName System.IO.FileInfo -MemberName Target -MemberType ScriptProperty -Value {
|
|
# Output the target, if the file at hand is a symbolic link (reparse point).
|
|
[string[]]$local:TempTarget = [InternalSymbolicLinkLinkCodeMethods]::GetTarget($this)
|
|
if ($local:TempTarget) {
|
|
, [string[]]$local:TempTarget
|
|
} else {
|
|
[string[]]$local:TempHardlinks = [WinUtil.NTFS]::GetHardLinks($this.FullName)
|
|
if ($null -ne $local:TempHardlinks -and $local:TempHardlinks.Length -gt 0) {
|
|
, [string[]]$local:TempHardlinks
|
|
}
|
|
}
|
|
}
|
|
}
|
