mirror of
https://github.com/SPLURT-Station/S.P.L.U.R.T-Station-13.git
synced 2025-12-10 01:49:19 +00:00
104 lines
3.4 KiB
PowerShell
104 lines
3.4 KiB
PowerShell
# bootstrap/python_.ps1
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#
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# Python bootstrapping script for Windows.
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#
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# Automatically downloads a portable edition of a pinned Python version to
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# a cache directory, installs Pip, installs `requirements.txt`, and then invokes
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# Python.
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#
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# The underscore in the name is so that typing `bootstrap/python` into
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# PowerShell finds the `.bat` file first, which ensures this script executes
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# regardless of ExecutionPolicy.
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$host.ui.RawUI.WindowTitle = "starting :: python $args"
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$ErrorActionPreference = "Stop"
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[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
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Add-Type -AssemblyName System.IO.Compression.FileSystem
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function ExtractVersion {
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param([string] $Path, [string] $Key)
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foreach ($Line in Get-Content $Path) {
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if ($Line.StartsWith("export $Key=")) {
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return $Line.Substring("export $Key=".Length)
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}
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}
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throw "Couldn't find value for $Key in $Path"
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}
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# Convenience variables
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$Bootstrap = Split-Path $script:MyInvocation.MyCommand.Path
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$Tools = Split-Path $Bootstrap
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$Cache = "$Bootstrap/.cache"
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if ($Env:TG_BOOTSTRAP_CACHE) {
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$Cache = $Env:TG_BOOTSTRAP_CACHE
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}
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$PythonVersion = ExtractVersion -Path "$Bootstrap/../../dependencies.sh" -Key "PYTHON_VERSION"
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$PythonDir = "$Cache/python-$PythonVersion"
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$PythonExe = "$PythonDir/python.exe"
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$Log = "$Cache/last-command.log"
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# Download and unzip a portable version of Python
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if (!(Test-Path $PythonExe -PathType Leaf)) {
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$host.ui.RawUI.WindowTitle = "Downloading Python $PythonVersion..."
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New-Item $Cache -ItemType Directory -ErrorAction silentlyContinue | Out-Null
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$Archive = "$Cache/python-$PythonVersion-embed.zip"
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Invoke-WebRequest `
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"https://www.python.org/ftp/python/$PythonVersion/python-$PythonVersion-embed-amd64.zip" `
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-OutFile $Archive `
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-ErrorAction Stop
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[System.IO.Compression.ZipFile]::ExtractToDirectory($Archive, $PythonDir)
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# Copy a ._pth file without "import site" commented, so pip will work
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Copy-Item "$Bootstrap/python37._pth" $PythonDir `
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-ErrorAction Stop
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Remove-Item $Archive
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}
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# Install pip
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if (!(Test-Path "$PythonDir/Scripts/pip.exe")) {
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$host.ui.RawUI.WindowTitle = "Downloading Pip..."
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Invoke-WebRequest "https://bootstrap.pypa.io/get-pip.py" `
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-OutFile "$Cache/get-pip.py" `
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-ErrorAction Stop
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& $PythonExe "$Cache/get-pip.py" --no-warn-script-location
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if ($LASTEXITCODE -ne 0) {
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exit $LASTEXITCODE
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}
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Remove-Item "$Cache/get-pip.py" `
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-ErrorAction Stop
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}
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# Use pip to install our requirements
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if (!(Test-Path "$PythonDir/requirements.txt") -or ((Get-FileHash "$Tools/requirements.txt").hash -ne (Get-FileHash "$PythonDir/requirements.txt").hash)) {
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$host.ui.RawUI.WindowTitle = "Updating dependencies..."
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& $PythonExe -m pip install -U pip -r "$Tools/requirements.txt"
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if ($LASTEXITCODE -ne 0) {
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exit $LASTEXITCODE
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}
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Copy-Item "$Tools/requirements.txt" "$PythonDir/requirements.txt"
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Write-Output "`n---`n"
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}
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# Invoke python with all command-line arguments
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Write-Output $PythonExe | Out-File -Encoding utf8 $Log
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[System.String]::Join([System.Environment]::NewLine, $args) | Out-File -Encoding utf8 -Append $Log
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Write-Output "---" | Out-File -Encoding utf8 -Append $Log
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$host.ui.RawUI.WindowTitle = "python $args"
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$ErrorActionPreference = "Continue"
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& $PythonExe -u $args 2>&1 | ForEach-Object {
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$str = "$_"
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if ($_.GetType() -eq [System.Management.Automation.ErrorRecord]) {
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$str = $str.TrimEnd("`r`n")
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}
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$str | Out-File -Encoding utf8 -Append $Log
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$str | Out-Host
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}
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exit $LastExitCode
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