mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-18 09:23:26 -05:00
Abdessamad Derraz
5a32a42d25
install.py held a local it never read and, since the registry path rules, a loop variable shadowing the platform module, so the py38 ruff gate the installer is held to failed. Both are fixed, and the suite reads the two rules from the syntax tree since CI has no ruff.
81 lines
3.7 KiB
PowerShell
81 lines
3.7 KiB
PowerShell
# One-line bootstrap and local wrapper. The downloaded installer is accepted
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# only when it matches the SHA-256 embedded in this wrapper.
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[CmdletBinding()]
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param(
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[Parameter(ValueFromRemainingArguments = $true)]
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[string[]]$InstallerArguments
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)
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$ErrorActionPreference = "Stop"
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$defaultInstallUrl = "https://raw.githubusercontent.com/Abdess/retrobios/main/install.py"
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$defaultInstallSha256 = "973e116ab59e233cd4fe5ebb77d4973bc06013b22b6388e80d12fa1d61fb0c73"
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$maximumInstallerBytes = 2MB
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$installerExit = 0
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$installer = if ($PSScriptRoot) { Join-Path $PSScriptRoot "install.py" } else { $null }
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$temporary = $null
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try {
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if (-not $installer -or -not (Test-Path -LiteralPath $installer -PathType Leaf)) {
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$url = if ($env:RETROBIOS_INSTALL_URL) { $env:RETROBIOS_INSTALL_URL } else { $defaultInstallUrl }
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$expected = if ($env:RETROBIOS_INSTALL_SHA256) { $env:RETROBIOS_INSTALL_SHA256 } else { $defaultInstallSha256 }
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$uri = [Uri]$url
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if ($uri.Scheme -ne "https") {
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throw "RETROBIOS_INSTALL_URL must use HTTPS."
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}
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if ($expected -notmatch '^[0-9a-fA-F]{64}$') {
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throw "Installer SHA-256 must contain exactly 64 hexadecimal characters."
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}
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# Windows PowerShell 5.1 still negotiates SSL 3.0 / TLS 1.0 by default
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# and GitHub refuses both, so the download fails before any hash is
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# checked. install.sh pins the same floor with curl --tlsv1.2.
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if ($PSVersionTable.PSEdition -ne "Core") {
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[Net.ServicePointManager]::SecurityProtocol = `
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[Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
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}
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$temporary = Join-Path ([IO.Path]::GetTempPath()) ("retrobios-install-{0}.py" -f [Guid]::NewGuid())
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Invoke-WebRequest -Uri $uri -OutFile $temporary -UseBasicParsing
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if ((Get-Item -LiteralPath $temporary).Length -gt $maximumInstallerBytes) {
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throw "Downloaded installer exceeds the size limit."
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}
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$actual = (Get-FileHash -LiteralPath $temporary -Algorithm SHA256).Hash.ToLowerInvariant()
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if ($actual -ne $expected.ToLowerInvariant()) {
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throw "The downloaded installer does not match its expected fingerprint. Nothing was run and nothing was written. The download was most likely cut short; try again, on another network if possible."
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}
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$installer = $temporary
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}
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$launcher = @()
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$python = Get-Command py -ErrorAction SilentlyContinue
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if ($python) {
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$launcher = @("-3")
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} else {
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$python = Get-Command python3 -ErrorAction SilentlyContinue
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if (-not $python) {
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$python = Get-Command python -ErrorAction SilentlyContinue
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}
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}
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if (-not $python) {
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throw "Python 3.8 or newer is required."
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}
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& $python.Source @launcher -c "import sys; raise SystemExit(sys.version_info < (3, 8))"
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if ($LASTEXITCODE -ne 0) { throw "Python 3.8 or newer is required." }
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& $python.Source @launcher $installer @InstallerArguments
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# The installer has already said what happened: its status is passed on
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# as it is (1 for files left to fetch under --check, 2 when nothing was
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# installed, 130 on Ctrl+C), not turned into a red exception that reads
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# as a crash and flattens every code to one.
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$installerExit = $LASTEXITCODE
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}
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finally {
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if ($temporary -and (Test-Path -LiteralPath $temporary)) {
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Remove-Item -LiteralPath $temporary -Force
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}
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}
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if ($installerExit) {
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# Run from a file, the script ends with that status. Piped into iex it
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# runs in the user's own session, which exit would close.
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if ($PSScriptRoot) { exit $installerExit }
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$global:LASTEXITCODE = $installerExit
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}
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