PSDependScripts/PSGalleryModule.ps1
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<# .SYNOPSIS Installs a module from a PowerShell repository like the PowerShell Gallery. .DESCRIPTION Installs a module from a PowerShell repository like the PowerShell Gallery. Relevant Dependency metadata: Name: The name for this module Version: Used to identify existing installs meeting this criteria, and as RequiredVersion for installation. Defaults to 'latest' Target: Used as 'Scope' for Install-Module. If this is a path, we use Save-Module with this path. Defaults to 'AllUsers' AddToPath: If target is used as a path, prepend that path to ENV:PSModulePath If you don't have the Nuget package provider, we install it for you .PARAMETER Repository PSRepository to download from. Defaults to PSGallery .PARAMETER Import If specified, import the module in the global scope Deprecated. Moving to PSDependAction .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 Import: Import the dependency .EXAMPLE @{ BuildHelpers = 'latest' PSDeploy = '' InvokeBuild = '3.2.1' } # From the PSGallery repository (PowerShellGallery.com)... # Install the latest BuildHelpers and PSDeploy ('latest' and '' both evaluate to latest) # Install version 3.2.1 .EXAMPLE @{ BuildHelpers = @{ Target = 'C:\Build' } } # Install the latest BuildHelpers module from PSGallery to C:\Build (i.e. C:\Build\BuildHelpers will be the module folder) # No version is specified - we assume latest in this case. .EXAMPLE @{ BuildHelpers = @{ Parameters @{ Repository = 'PSPrivateGallery' } } } # Install the latest BuildHelpers module from a custom gallery* that you registered # No version is specified - we assume latest in this case. # * Perhaps you use this https://github.com/PowerShell/PSPrivateGallery, or Artifactory, ProGet, etc. #> [cmdletbinding()] param( [PSTypeName('PSDepend.Dependency')] [psobject[]]$Dependency, [string]$Repository = 'PSGallery', # From Parameters... [switch]$Import, [ValidateSet('Test', 'Install', 'Import')] [string[]]$PSDependAction = @('Install') ) # Extract data from Dependency $DependencyName = $Dependency.DependencyName $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 } if('AllUsers', 'CurrentUser' -notcontains $Scope) { $command = 'save' } else { $command = 'install' } if(-not (Get-PackageProvider -Name Nuget)) { # Grab nuget bits. $null = Get-PackageProvider -Name NuGet -ForceBootstrap | Out-Null } Write-Verbose -Message "Getting dependency [$name] from PowerShell repository [$Repository]" # Validate that $target has been setup as a valid PowerShell repository $validRepo = Get-PSRepository -Name $Repository -Verbose:$false -ErrorAction SilentlyContinue if (-not $validRepo) { Write-Error "[$Repository] has not been setup as a valid PowerShell repository." return } $params = @{ Name = $Name Repository = $Repository Verbose = $VerbosePreference Force = $True } if( $Version -and $Version -ne 'latest') { $Params.add('RequiredVersion',$Version) } # This code works for both install and save scenarios. if($command -eq 'Save') { $ModuleName = Join-Path $Scope $Name } elseif ($Command -eq 'Install') { $ModuleName = $Name } $Existing = $null $Existing = Get-Module -ListAvailable -Name $ModuleName -ErrorAction SilentlyContinue if($Existing) { Write-Verbose "Found existing module [$Name]" # Thanks to Brandon Padgett! $ExistingVersion = $Existing | Measure-Object -Property Version -Maximum | Select-Object -ExpandProperty Maximum $GalleryVersion = Find-Module -Name $Name -Repository $Repository | 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]" # Conditional import Import-PSDependModule -Name $ModuleName -Action $PSDependAction if($PSDependAction -contains 'Test') { return $True } return $null } # latest, and we have latest if( $Version -and ($Version -eq 'latest' -or $Version -like '') -and $GalleryVersion -le $ExistingVersion ) { Write-Verbose "You have the latest version of [$Name], with installed version [$ExistingVersion] and PSGallery version [$GalleryVersion]" # Conditional import Import-PSDependModule -Name $ModuleName -Action $PSDependAction if($PSDependAction -contains 'Test') { return $True } return $null } Write-Verbose "Continuing to install [$Name]: Requested version [$version], existing version [$ExistingVersion], PSGallery version [$GalleryVersion]" } #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') { if('AllUsers', 'CurrentUser' -contains $Scope) { Write-Verbose "Installing [$Name] with scope [$Scope]" Install-Module @params -Scope $Scope } else { Write-Verbose "Saving [$Name] with path [$Scope]" Write-Verbose "Creating directory path to [$Scope]" if(-not (Test-Path $Scope -ErrorAction SilentlyContinue)) { $Null = New-Item -ItemType Directory -Path $Scope -Force -ErrorAction SilentlyContinue } Save-Module @params -Path $Scope if($Dependency.AddToPath) { Write-Verbose "Setting PSModulePath to`n$($Scope, $env:PSModulePath -join ';' | Out-String)" Add-ToItemCollection -Reference Env:\PSModulePath -Item $Scope } } } # Conditional import Import-PSDependModule -Name $ModuleName -Action $PSDependAction |