PSDependScripts/Package.ps1
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<# .SYNOPSIS Installs a package using the PackageManagement module .DESCRIPTION Installs a package using the PackageManagement module Relevant Dependency metadata: Name: The name for this Package Version: Used to identify existing installs meeting this criteria, and as RequiredVersion for installation. Defaults to 'latest' Target: Used as 'Scope' for Install-Package. Defaults to 'AllUsers', also accepts 'CurrentUser' Source: Package source to use (Get-PackageSource, Register-PackageSource) Parameters: Every parameter you specify is splatted against Install-Package If you don't have the Nuget package provider, we install it for you .PARAMETER Repository PSRepository to download from. Defaults to PSGallery .PARAMETER PSDependAction Test, Install, or Import the module. Defaults to Install Test: Return true or false on whether the dependency is in place Install: Install the dependency #> [cmdletbinding()] param( [PSTypeName('PSDepend.Dependency')] [psobject[]]$Dependency, [ValidateSet('Test', 'Install')] [string[]]$PSDependAction = @('Install') ) # Extract data from Dependency $DependencyName = $Dependency.DependencyName $Source = $Dependency.Source $Name = $Dependency.Name if(-not $Name) { $Name = $DependencyName } $Version = $Dependency.Version if(-not $Version) { $Version = 'latest' } # We use target as a proxy for Scope if(-not $Dependency.Target) { $Scope = 'AllUsers' } else { $Scope = $Dependency.Target } $PackageSources = @( Get-PackageSource ) if($PackageSources.ProviderName -notcontains $Source) { Write-Error "PackageSource [$Source] is not valid. Valid sources:`n$($PackageSources.ProviderName | Out-String)" return } Write-Verbose -Message "Getting dependency [$name] from Package source [$Source]" $ThisProvider = $PackageSources | Where {$_.Name -eq $Source} | Select -ExpandProperty ProviderName $GetParam = @{ Name = $Name ProviderName = $ThisProvider ErrorAction = 'SilentlyContinue' } $InstallParam = @{ Name = $Name Source = $Source Force = $True Scope = $Scope } if($Version -notlike 'latest') { $GetParam.add('RequiredVersion', $Version) $InstallParam.add('RequiredVersion', $Version) } if($Dependency.Parameters.Keys.Count -gt 0) { foreach($Key in $Dependency.Parameters.Keys) { if(-not $InstallParam.ContainsKey($Key)) { $InstallParam.add($Key, $Dependency.Parameters.$Key) } else { $InstallParam.$Key = $Dependency.Parameters.$Key } } } $Existing = $null Write-Verbose "Running Get-Package with $($GetParam | Out-String)" $Existing = Get-Package @GetParam if($Existing) { Write-Verbose "Found existing package [$Name]" # Thanks to Brandon Padgett! $ExistingVersion = $Existing | Measure-Object -Property Version -Maximum | Select-Object -ExpandProperty Maximum $SourceVersion = Find-Package -Name $Name -Source $Source | Measure-Object -Property Version -Maximum | Select-Object -ExpandProperty Maximum # Version string, and equal to current if( $Version -and $Version -ne 'latest' -and $Version -eq $ExistingVersion) { Write-Verbose "You have the requested version [$Version] of [$Name]" if($PSDependAction -contains 'Test') { return $True } return $null } # latest, and we have latest if( $Version -and ($Version -eq 'latest' -or $Version -like '') -and $SourceVersion -le $ExistingVersion ) { Write-Verbose "You have the latest version of [$Name], with installed version [$ExistingVersion] and package source version [$SourceVersion]" if($PSDependAction -contains 'Test') { return $True } return $null } Write-Verbose "Continuing to install [$Name]: Requested version [$version], existing version [$ExistingVersion], package source version [$SourceVersion]" } #No dependency found, return false if we're testing alone... if( $PSDependAction -contains 'Test' -and $PSDependAction.count -eq 1) { return $False } if($PSDependAction -contains 'Install') { Write-Verbose "Installing [$Name] with scope [$Scope]" Install-Module @InstallParam } |