.pcode_python/.pcode/helpers/build_env.ps1
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[CmdletBinding()] Param( # Specify the specific Python Version to use [Parameter(Mandatory=$False,Position=1)] [string]$desiredVersion ) # Returns Python Cores that are present in the Windows Registry function Get-PythonFromRegistry { $install_paths = @( "hklm:\software\python\pythoncore\", "hkcu:\software\python\pythoncore\", "hklm:\software\wow6432node\python\pythoncore\") $python_cores = @() foreach ($path in $install_paths) { if (test-path -path $path) { foreach ($core in Get-ChildItem -path $path) { $exe_regpath = Join-Path $core.PSPath -ChildPath "InstallPath" if (test-path -path $exe_regpath) { $py_core = Get-ItemProperty -Path $exe_regpath if ($py_core.PSObject.properties.name -contains "ExecutablePath") { if (Test-Path -path $py_core.ExecutablePath) { # Python 3 provides ExecutablePath value that points to Python exe $python_cores += $py_core.ExecutablePath } } else { if (Test-Path -path (Join-Path $py_core."(default)" -ChildPath "python.exe")) { # Python 2 default value contains the Path that the Python exe resides $py_exe_path = Join-Path $py_core."(default)" -ChildPath "python.exe" $python_cores += $py_exe_path } } } } } } return $python_cores } # Returns Python Cores that are Windows AppX Packages function Get-PythonFromAppx { $python_cores = @() foreach ($python_appx in (Get-AppxPackage | Where-Object -Property "Name" -Like "*Python*")) { # Local AppData for Windows Appx should contain valid links $py_folder = [IO.Path]::Combine( $env:LOCALAPPDATA, "Microsoft", "WindowsApps", $python_appx.PackageFamilyName) if (Test-Path -path (Join-Path $py_folder -ChildPath "python.exe")) { $py_exe_path = Join-Path $py_folder -ChildPath "python.exe" $python_cores += $py_exe_path } } return $python_cores } # TODO: Add one more to just go through the paths var and look for python.exe # Runs python.exe with info.py script to extract information function Get-PythonInfo($python_paths) { $py_info = @() foreach ($python in $python_paths) { try { $info = & $python (Join-Path (Split-Path -Parent $PSCommandPath) -ChildPath info.py) | ConvertFrom-Json $info | Add-Member NoteProperty "FullPath" $python $py_info += $info } catch { } } return $py_info } function Get-PythonInstalls() { Param( # Specify the specific Python Version to use [Parameter(Mandatory=$False,Position=1)] [string]$desiredVersion ) $python_cores = @() $python_cores += Get-PythonFromRegistry $python_cores += Get-PythonFromAppx $py_installs = @(PythonInfo($python_cores) | Sort-Object -Property versionInfo) if ($desiredVersion) { $py_installs = @($py_installs | Where-Object { $_.versionInfo[0..2] -Join "." -Match $desiredVersion}) } if ($py_installs.Count -lt 1) { if ($desiredVersion) { throw "Could not find a Python Installation matching version {0}" -f $desiredVersion } else { throw "Could not find a Python Installation!" } exit 1 } return $py_installs } function Get-PythonUsersChoice() { Param( # Specify the specific Python Version to use [Parameter(Mandatory=$False,Position=1)] [string]$desiredVersion ) [array]$py_installs = Get-PythonInstalls $desiredVersion if ($py_installs.count -gt 1) { $python = (dispMenu($py_installs)) } else { $python = $py_installs[0] } return $python } function dispMenu { param($py_installs) Write-Output "========== Choose Python Version to use ==========" | Out-Host $entry = @() foreach ($install in $py_installs) { $entry += $install $is64 = If ($install.is64Bit -eq "True") {"64-bit"} else {"32-bit"} Write-Output ( "$($entry.count): Python {0}.{1}.{2} {3} {4}" -f $($install.versionInfo + $is64)) | Out-Host } while ($True) { $selection = Read-Host "Make a selection" if ($selection -match "\d+") { $selection = [int]$selection - 1 if ($selection -lt $py_installs.Count -and $selection -ge 0) { return $entry[$selection] } } } } function main { $python = Get-PythonUsersChoice $desiredVersion # Start building the env Write-Output "Building Virtual Environment..." if (Test-Path env:PWD) { Set-Location $env:PWD } else { if ((Split-Path (Get-Location) -Leaf) -eq ".pcode") { # Stepping out of .pcode dir Set-Location .. } } try { if ($python.versionInfo[0] -eq "2") { # Python 2.7 virtualenv & $python.FullPath -m virtualenv venv --no-download } else { # Python 3 comes with venv, but desire to use virtualenv if available & $python.FullPath -m virtualenv venv --no-download if (-not $?) { Write-Output "Using Built-in venv instead..." & $python.FullPath -m venv venv } } # Run the activation script & .\venv\Scripts\activate.ps1 } catch { throw Write-Output "Failed to Create the Virtual Environment!" exit 1 } # Install requirements if (Test-Path "requirements.txt") { Write-Output "Installing PIP packages listed in requirements" & python -m pip install -r requirements.txt } Write-Output "Virtual Env up" } if ($MyInvocation.InvocationName -eq "&") { main } |