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<#
BuildBuddy cache keys include the action and test environment, so Bazel should
not inherit the full hosted-runner PATH on Windows. That PATH includes volatile
tool entries, such as Maven, that can change independently of this repo and
cause avoidable cache misses.
This script derives a smaller, cache-stable PATH that keeps the Windows
toolchain entries Bazel-backed CI tasks need: MSVC and Windows SDK paths,
MinGW runtime DLL paths for gnullvm-built tests, Git, PowerShell, Node, Python,
DotSlash, and the standard Windows system directories.
`setup-bazel-ci` runs this after exporting the MSVC environment, and the script
publishes the result via `GITHUB_ENV` as `CODEX_BAZEL_WINDOWS_PATH` so later
steps can pass that explicit PATH to Bazel.
#>
$stablePathEntries = New-Object System.Collections.Generic.List[string]
$seenEntries = [System.Collections.Generic.HashSet[string]]::new([System.StringComparer]::OrdinalIgnoreCase)
$windowsAppsPath = if ([string]::IsNullOrWhiteSpace($env:LOCALAPPDATA)) {
$null
} else {
"$($env:LOCALAPPDATA)\Microsoft\WindowsApps"
}
$windowsDir = if ($env:WINDIR) {
$env:WINDIR
} elseif ($env:SystemRoot) {
$env:SystemRoot
} else {
$null
}
function Add-StablePathEntry {
param([string]$PathEntry)
if ([string]::IsNullOrWhiteSpace($PathEntry)) {
return
}
if ($seenEntries.Add($PathEntry)) {
[void]$stablePathEntries.Add($PathEntry)
}
}
foreach ($pathEntry in ($env:PATH -split ';')) {
if ([string]::IsNullOrWhiteSpace($pathEntry)) {
continue
}
if (
$pathEntry -like '*Microsoft Visual Studio*' -or
$pathEntry -like '*Windows Kits*' -or
$pathEntry -like '*Microsoft SDKs*' -or
$pathEntry -eq 'C:\mingw64\bin' -or
$pathEntry -like 'C:\msys64\*\bin' -or
$pathEntry -like 'C:\Program Files\Git\*' -or
$pathEntry -like 'C:\Program Files\PowerShell\*' -or
$pathEntry -like 'C:\hostedtoolcache\windows\node\*' -or
$pathEntry -like 'C:\hostedtoolcache\windows\Python\*' -or
$pathEntry -eq 'D:\a\_temp\install-dotslash\bin' -or
($windowsDir -and ($pathEntry -eq $windowsDir -or $pathEntry -like "${windowsDir}\*"))
) {
Add-StablePathEntry $pathEntry
}
}
$gitCommand = Get-Command git -ErrorAction SilentlyContinue
if ($gitCommand) {
Add-StablePathEntry (Split-Path $gitCommand.Source -Parent)
}
$nodeCommand = Get-Command node -ErrorAction SilentlyContinue
if ($nodeCommand) {
Add-StablePathEntry (Split-Path $nodeCommand.Source -Parent)
}
$python3Command = Get-Command python3 -ErrorAction SilentlyContinue
if ($python3Command) {
Add-StablePathEntry (Split-Path $python3Command.Source -Parent)
}
$pythonCommand = Get-Command python -ErrorAction SilentlyContinue
if ($pythonCommand) {
Add-StablePathEntry (Split-Path $pythonCommand.Source -Parent)
}
$pwshCommand = Get-Command pwsh -ErrorAction SilentlyContinue
if ($pwshCommand) {
Add-StablePathEntry (Split-Path $pwshCommand.Source -Parent)
}
foreach ($mingwPath in @('C:\mingw64\bin', 'C:\msys64\mingw64\bin', 'C:\msys64\ucrt64\bin')) {
if (Test-Path $mingwPath) {
Add-StablePathEntry $mingwPath
}
}
if ($windowsAppsPath) {
Add-StablePathEntry $windowsAppsPath
}
if ($stablePathEntries.Count -eq 0) {
throw 'Failed to derive cache-stable Windows PATH.'
}
if ([string]::IsNullOrWhiteSpace($env:GITHUB_ENV)) {
throw 'GITHUB_ENV must be set.'
}
$stablePath = $stablePathEntries -join ';'
Write-Host 'Derived CODEX_BAZEL_WINDOWS_PATH entries:'
foreach ($pathEntry in $stablePathEntries) {
Write-Host " $pathEntry"
}
"CODEX_BAZEL_WINDOWS_PATH=$stablePath" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append