official 0.1.0 version
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ykcheungab
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#Requires -Version 5.1
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<#
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.SYNOPSIS
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Provision the Windows packaging environment for Orisys Studio. Run once per machine.
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.DESCRIPTION
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Building the EXE has two kinds of requirement, and mixing them is what makes a build
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"work on my machine":
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* things that are true of *this machine* — which interpreter exists, whether it is
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Anaconda (whose libexpat/libffi DLLs live outside the venv and are therefore not
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bundled), where the orisys SDK checkout is. Those are decided **here**, once, and
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recorded in `.venv-build\orisys-build-env.json`.
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* things that are true of the *sources* — the specs, the excludes, the assets. Those
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belong to `build.ps1`, which then installs nothing and guesses nothing.
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So this script is the only place that installs anything. It creates `.venv-build` (or
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repairs it), installs the pinned toolchain plus the app's own extras, writes the stamp that
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`build.ps1` and the spec read, and verifies the result by importing what the frozen app
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imports before anything is packaged.
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Re-running is safe: with a valid stamp and no -Force it reports and exits; without a stamp
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it repairs the existing venv instead of deleting it.
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.PARAMETER Python
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Interpreter used to create the venv. Default: `py -3.10` when available, else `python`,
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else the interpreter that already backs `.venv-build`.
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.PARAMETER SdkPath
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Local `orisys` SDK checkout to install editable. Default: `..\..\..\orisys-sdk` when that
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exists. Without it (or with -FromPypi) the SDK comes from PyPI, which is *not* the code
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under test — that is how a build once shipped with no `orisys.finger` at all.
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.PARAMETER Force
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Recreate the venv from scratch.
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.PARAMETER AllowConda
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Accept an Anaconda interpreter. Anaconda keeps libexpat/libffi/OpenSSL/SQLite in
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`<prefix>\Library\bin`, where PyInstaller does not look; the stamp records that directory
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and the spec adds those DLLs. Building with a python.org CPython is still preferred.
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.PARAMETER FromPypi
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Install `orisys` from PyPI instead of a local checkout.
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.PARAMETER NoVerify
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Skip the post-install verification (not recommended; that verification is what catches a
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provisioning which would produce an EXE that cannot start).
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.EXAMPLE
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setup.bat
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setup.bat -Force
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setup.bat -Python C:\Python310\python.exe
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setup.bat -AllowConda
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#>
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param(
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[string]$Python = "",
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[string]$SdkPath = "",
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[switch]$Force,
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[switch]$AllowConda,
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[switch]$FromPypi,
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[switch]$NoVerify
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)
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$ErrorActionPreference = "Stop"
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$StudioDir = $PSScriptRoot
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$RepoRoot = (Resolve-Path (Join-Path $StudioDir "..\..")).Path
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$VenvDir = Join-Path $RepoRoot ".venv-build"
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$VenvPy = Join-Path $VenvDir "Scripts\python.exe"
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$VenvCfg = Join-Path $VenvDir "pyvenv.cfg"
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$StampPath = Join-Path $VenvDir "orisys-build-env.json"
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$Constraints = Join-Path $StudioDir "constraints-build.txt"
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#: Bumped when the stamp's meaning changes: an old stamp must not be read as valid.
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$StampVersion = 1
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#: `pyinstaller` is pinned here as well as in the constraints file: it is the tool, not a
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#: dependency of the app, and its version decides what the bundle contains.
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$PyInstallerPin = "pyinstaller==6.22.2"
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#: opencv-python 5.x has shipped wheels without a `cv2` module; the app is tested on 4.x.
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$CvPin = "opencv-python-headless>=4.10.0.84,<5"
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# A condition the operator has to fix, with the instructions in the message itself.
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function Stop-With([string]$message) {
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Write-Host ""
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Write-Host $message -ForegroundColor Red
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exit 1
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}
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# PowerShell 5.1's `Set-Content -Encoding UTF8` writes a BOM, and a BOM makes Python's
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# `json.loads` raise ("Unexpected UTF-8 BOM"). The spec reads this stamp, so a BOM here would
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# quietly drop the extra runtime DLLs and the EXE would not start.
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function Write-JsonFile([string]$path, [string]$json) {
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[System.IO.File]::WriteAllText($path, $json, (New-Object System.Text.UTF8Encoding($false)))
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}
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# A path that is really a Python: the Microsoft Store alias on PATH answers `python` but is
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# not an interpreter, and it would otherwise be silently chosen.
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function Test-BasePython([string]$exe) {
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if (-not $exe) { return $null }
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if ($exe -match '\\WindowsApps\\') { return $null }
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if (-not (Test-Path $exe)) { return $null }
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try {
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$out = & $exe -c "import sys; print(sys.executable)" 2>$null
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if ($LASTEXITCODE -ne 0 -or -not $out) { return $null }
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return ($out | Select-Object -Last 1).Trim()
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} catch {
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return $null
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}
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}
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function Resolve-BasePython([string]$explicit) {
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if ($explicit) {
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$ok = Test-BasePython $explicit
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if (-not $ok) { Stop-With "-Python is not a usable interpreter: $explicit" }
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return $ok
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}
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$tried = @()
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if (Get-Command py.exe -ErrorAction SilentlyContinue) {
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$out = & py -3.10 -c "import sys; print(sys.executable)" 2>$null
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$tried += "py -3.10"
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if ($LASTEXITCODE -eq 0 -and $out) {
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$ok = Test-BasePython (($out | Select-Object -Last 1).Trim())
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if ($ok) { return $ok }
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}
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}
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foreach ($name in @("python3.10.exe", "python.exe")) {
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$found = Get-Command $name -ErrorAction SilentlyContinue
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if (-not $found) { continue }
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$tried += $found.Source
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$ok = Test-BasePython $found.Source
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if ($ok) { return $ok }
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}
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# Last resort: whatever already backs this venv. An existing build environment is
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# evidence of an interpreter that works on this machine.
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if (Test-Path $VenvCfg) {
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$match = Select-String -Path $VenvCfg -Pattern '^home\s*=\s*(.+)$'
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if ($match) {
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$baseHome = $match.Matches[0].Groups[1].Value.Trim()
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$tried += "$baseHome (from pyvenv.cfg)"
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$ok = Test-BasePython (Join-Path $baseHome "python.exe")
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if ($ok) { return $ok }
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}
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}
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Stop-With "no usable Python found (tried: $($tried -join ', ')). Install CPython 3.10+ and pass -Python <path>."
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}
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function Get-PythonFacts([string]$exe) {
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$json = & $exe -c "import json,os,sys;print(json.dumps({'exe':sys.executable,'version':sys.version.split()[0],'prefix':sys.prefix,'conda':os.path.isdir(os.path.join(sys.prefix,'conda-meta')) or 'conda' in sys.prefix.lower()}))"
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if ($LASTEXITCODE -ne 0) { throw "could not query $exe" }
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return ($json | Select-Object -Last 1 | ConvertFrom-Json)
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}
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Write-Host "Orisys Studio build environment"
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Write-Host " repo : $RepoRoot"
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Write-Host " venv : $VenvDir"
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# --------------------------------------------------------------------- stamp check
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if ((Test-Path $VenvPy) -and (Test-Path $StampPath) -and -not $Force) {
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$stamp = Get-Content $StampPath -Raw | ConvertFrom-Json
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if ($stamp.stamp_version -eq $StampVersion -and $stamp.checkout_root -eq $RepoRoot) {
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Write-Host ""
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Write-Host "Already provisioned ($($stamp.created)); nothing to do."
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Write-Host " base python : $($stamp.base_python) ($($stamp.python_version))"
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Write-Host " sdk : $($stamp.sdk)"
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Write-Host "Use -Force to rebuild the venv, or go straight to ..\studio\build.bat"
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exit 0
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}
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Write-Host "The existing venv was provisioned for another checkout or an older stamp: repairing it."
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}
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# ------------------------------------------------------------------- interpreter
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$BasePy = Resolve-BasePython $Python
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$facts = Get-PythonFacts $BasePy
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Write-Host " base python : $($facts.exe) ($($facts.version))"
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$extraDllDirs = @()
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if ($facts.conda) {
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$libraryBin = Join-Path $facts.prefix "Library\bin"
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if (-not $AllowConda) {
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Stop-With @"
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$($facts.exe) is an Anaconda interpreter.
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PyInstaller does not search Anaconda's Library\bin, where libexpat.dll, ffi-8.dll,
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libssl/libcrypto and sqlite3.dll live, so the EXE it produces fails at start-up with
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"ImportError: DLL load failed while importing pyexpat". Either:
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* build with python.org CPython (recommended): setup.bat -Python C:\Python310\python.exe
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* or accept the risk: setup.bat -AllowConda
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-AllowConda records $libraryBin in the build stamp and the spec adds those DLLs.
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"@
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}
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if (Test-Path $libraryBin) {
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$extraDllDirs += $libraryBin
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Write-Host " conda : accepted; runtime DLLs will be taken from $libraryBin"
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} else {
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Write-Warning "conda prefix $($facts.prefix) has no Library\bin; the EXE may not start"
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}
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}
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# ----------------------------------------------------------------------- the venv
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if ($Force -and (Test-Path $VenvDir)) {
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Write-Host "Removing $VenvDir"
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Remove-Item $VenvDir -Recurse -Force
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}
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if (-not (Test-Path $VenvPy)) {
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Write-Host "Creating venv with $BasePy"
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& $BasePy -m venv $VenvDir
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if ($LASTEXITCODE -ne 0) { throw "python -m venv failed" }
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} else {
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Write-Host "Reusing the existing venv (use -Force to recreate it)"
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}
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# ------------------------------------------------------------------------ the SDK
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$sdkSource = ""
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if (-not $FromPypi) {
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$candidate = if ($SdkPath) { $SdkPath } else { Join-Path (Split-Path $RepoRoot -Parent) "orisys-sdk" }
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if ($candidate -and (Test-Path (Join-Path $candidate "pyproject.toml"))) {
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$sdkSource = (Resolve-Path $candidate).Path
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} elseif ($SdkPath) {
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throw "-SdkPath has no pyproject.toml: $SdkPath"
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}
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}
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if (-not $sdkSource) {
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Write-Warning "No local orisys SDK checkout found; installing 'orisys>=0.5' from PyPI. The EXE will not contain the SDK under test unless that is what you intend."
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}
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# ----------------------------------------------------------------------- install
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Write-Host "Installing the pinned toolchain and the app's own packages ..."
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$install = @("-m", "pip", "install", "--disable-pip-version-check")
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if (Test-Path $Constraints) { $install += @("-c", $Constraints) }
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if ($sdkSource) { $install += @("-e", $sdkSource) } else { $install += "orisys>=0.5" }
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$install += @("-e", (Join-Path $RepoRoot "shared"))
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# The `three-d` extra is the GL binding. Without it the app still builds, and the 3D pane
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# silently reports "PyOpenGL is not installed" on the customer's machine.
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$install += @("-e", "$(Join-Path $RepoRoot 'apps\studio')[three-d]")
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$install += @($PyInstallerPin, $CvPin)
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& $VenvPy @install
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if ($LASTEXITCODE -ne 0) { throw "pip install failed" }
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# Upstream `orisys` may declare opencv-python; the app needs the headless wheel (PyQt owns
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# the GUI), and 5.x can arrive without a `cv2` module.
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& $VenvPy -m pip uninstall -y opencv-python opencv-python-headless 2>$null | Out-Null
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& $VenvPy -m pip install --disable-pip-version-check -c $Constraints $CvPin
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if ($LASTEXITCODE -ne 0) { throw "opencv-python-headless install failed" }
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# Open3D must not be in the build env: it is an offline tool, and the spec excludes it.
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$hasOpen3d = & $VenvPy -c "import importlib.util; print(importlib.util.find_spec('open3d') is not None)"
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if ($hasOpen3d -eq "True") {
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Write-Host "Uninstalling open3d from the build venv ..."
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& $VenvPy -m pip uninstall -y open3d
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}
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# ------------------------------------------------------------------- verification
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if (-not $NoVerify) {
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Write-Host ""
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Write-Host "Verifying the provisioned environment ..."
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# These are the imports the frozen app makes before it can draw anything. Checking them
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# here is what turns "the build succeeded" into "the build can start".
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& $VenvPy -c "import orisys_app_shared, orisys_studio, orisys, OpenGL, cv2, PyQt5.QtWidgets, PyInstaller; print('imports OK')"
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if ($LASTEXITCODE -ne 0) { throw "the venv cannot import what the app imports (see above)" }
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# Theme colours are package data: PyInstaller only bundles them if the package is
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# importable at build time, so a stale editable install loses them silently.
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& $VenvPy -c "from PyInstaller.utils.hooks import collect_data_files as c; d=c('orisys_app_shared', includes=['theme/*.json']); assert d, 'theme data not collectable'; print('theme data OK:', len(d), 'files')"
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if ($LASTEXITCODE -ne 0) { throw "theme data would not be bundled" }
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# When a local checkout was asked for, the installed SDK must be that checkout.
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if ($sdkSource) {
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& $VenvPy -c "import orisys, os; p=os.path.dirname(orisys.__file__); assert os.path.isfile(os.path.join(p,'finger','__init__.py')), 'orisys.finger missing from '+p; print('SDK OK:', p)"
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if ($LASTEXITCODE -ne 0) { throw "the installed SDK has no finger package" }
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}
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}
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# ------------------------------------------------------------------------ stamp
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$stampData = [ordered]@{
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stamp_version = $StampVersion
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checkout_root = $RepoRoot
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created = (Get-Date).ToString("o")
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base_python = $facts.exe
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python_version = $facts.version
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is_conda = [bool]$facts.conda
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conda_prefix = $facts.prefix
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extra_dll_dirs = @($extraDllDirs)
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sdk = $sdkSource
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venv = $VenvDir
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}
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Write-JsonFile $StampPath ($stampData | ConvertTo-Json -Depth 4)
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Write-Host "Wrote $StampPath"
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Write-Host ""
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Write-Host "Environment ready. Next:"
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Write-Host " build.bat # build the EXE"
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Write-Host " build.bat -Clean # after dependency/spec changes"
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Write-Host " build.bat -SkipSmokeTest # skip launching the produced EXE"
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