Functions/Get-VirtualEnvLocal.ps1
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# =========================================================================== # Get-VirtualEnvLocal.ps1 ------------------------------------------------- # =========================================================================== # function ---------------------------------------------------------------- # --------------------------------------------------------------------------- function Get-VirtualEnvLocal { <# .SYNOPSIS Download packages of a specified virtual environment. .DESCRIPTION Download packages of a specified virtual environment to a predefined local directory. .PARAMETER Name .PARAMETER All .EXAMPLE PS C:\>Get-VirtualEnvLocal -Name venv SUCCESS: Packages of virtual environment 'venv' were downloaded to 'A:\VirtualEnv\.temp\venv'. ----------- Description Download all packages of the virtual environment 'venv' to a predefined download directory. .EXAMPLE PS C:\>Get-VirtualEnvLocal -All ----------- Description Download all packages of each existing virtual environment to a predefined download directory. .INPUTS System.String. Name of the virtual environment, which packages shall be downloaded. .OUTPUTS None. #> [CmdletBinding(PositionalBinding=$True)] [OutputType([Void])] Param ( # [ValidateSet([ValidateVirtualEnvOptional])] [Parameter(HelpMessage="Name of the virtual environment, which packages shall be downloaded.")] [System.String] $Name, [Parameter(HelpMessage="If switch 'All' is true, the packages of all existing virtual environments will be generated.")] [Switch] $All ) Process { # Get all existing virtual environments if 'Name' is not set $virtualEnv = @{ Name = $Name } if ($All -or -not $virtualEnv) { $virtualEnv = Get-VirtualEnv } $virtualEnvIdx = 1 $virtualEnv | ForEach-Object { # check if there exists a specific virtual environment if (-not (Test-VirtualEnv -Name $_.Name -Verbose)) { return } # set environment variable Set-VirtualEnvSystem -Name $Name # get absolute path of requirement file and download directoy $requirementFile = Get-VirtualEnvRequirementFile -Name $_.Name $virtualEnvLocal = Get-VirtualEnvLocalDir -Name $_.Name # remove the requirement file when it exists and create the respective file if (Test-Path $requirementFile){ Remove-Item -Path $requirementFile -Force } Get-VirtualEnvRequirement -Name $_.Name # remove a previous folder, which contains download file of packages related to a older state of the virtual environment if (Test-Path $virtualEnvLocal){ Remove-Item -Path $virtualEnvLocal -Recurse } # download the packages defined in the requirement file to the specified download directory Write-FormattedMessage -Message "Download packages of virtual environment '$($_.Name)' to '$virtualEnvLocal' - $virtualEnvIdx of $($virtualEnv.length) packages " -Color "Yellow" . (Get-VirtualPython -Name $_.Name) -m pip download --requirement $requirementFile --dest $virtualEnvLocal Write-FormattedSuccess -Message "Packages of virtual environment '$($_.Name)' were downloaded to '$virtualEnvLocal'" # set the pythonhome variable in scope process to the stored backup variable Restore-VirtualEnvSystem # create the local requirement file of the specified virtual environment $requirementFileLocal = Join-Path -Path $virtualEnvLocal -ChildPath ($_.Name + ".txt") Write-FormattedMessage -Message "Write local requirement file for virtual environment '$($_.Name)' to '$requirementFileLocal' - $virtualEnvIdx of $($virtualEnv.length) packages " -Color "Yellow" Out-File -FilePath $requirementFileLocal -InputObject (Get-ChildItem -Path $virtualEnvLocal | Select-Object -ExpandProperty Name ) Write-FormattedSuccess -Message "Local requirement file '$requirementFileLocal' for virtual environment '$($_.Name)' was created." # write content of local requirement file to host Write-Host Write-Host "Content of '$requirementFileLocal':" -ForeGroundColor DarkGray Get-Content $requirementFileLocal $virtualEnvIdx += 1 } } } |