turnout 0.10.3

A developer's switchyard: point local apps at any backend stand, keep servers and secrets at hand, build and deploy from any directory
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# turnout installer for Windows:
#   irm https://raw.githubusercontent.com/lacodda/turnout/main/tools/install.ps1 | iex
$ErrorActionPreference = "Stop"

$repo = "lacodda/turnout"

# The tag comes from the /releases/latest redirect rather than the REST API:
# unauthenticated API calls are capped at 60 per hour per IP, and an installer
# that fails because someone else on the same address ran it is no installer.
# $env:TURNOUT_VERSION pins a specific release.
$tag = $env:TURNOUT_VERSION
if (-not $tag) {
    $request = [Net.HttpWebRequest]::Create("https://github.com/$repo/releases/latest")
    $request.AllowAutoRedirect = $false
    $request.UserAgent = "turnout-installer"
    try {
        $response = $request.GetResponse()
        $tag = ($response.Headers["Location"] -split "/")[-1]
        $response.Close()
    } catch {
        throw "Cannot resolve the latest release of ${repo}: $($_.Exception.Message)"
    }
}
if (-not $tag -or $tag -notmatch '^v\d') {
    throw "Cannot resolve the latest release of $repo - set `$env:TURNOUT_VERSION to a tag like v0.10.2"
}

$name = "turnout-$tag-x86_64-pc-windows-msvc"
$url = "https://github.com/$repo/releases/download/$tag/$name.zip"
$dir = if ($env:TURNOUT_INSTALL_DIR) { $env:TURNOUT_INSTALL_DIR } else { Join-Path $env:LOCALAPPDATA "Programs\turnout" }
$tmp = Join-Path ([IO.Path]::GetTempPath()) "turnout-install-$([guid]::NewGuid())"
New-Item -ItemType Directory -Force $tmp | Out-Null

try {
    Write-Host "Downloading $url"
    Invoke-WebRequest $url -OutFile (Join-Path $tmp "turnout.zip")
    Expand-Archive (Join-Path $tmp "turnout.zip") -DestinationPath $tmp -Force
    New-Item -ItemType Directory -Force $dir | Out-Null
    Copy-Item (Join-Path $tmp "$name\turnout.exe") $dir -Force
} finally {
    Remove-Item $tmp -Recurse -Force -ErrorAction SilentlyContinue
}

$userPath = [Environment]::GetEnvironmentVariable("Path", "User")
if (($userPath -split ";") -notcontains $dir) {
    [Environment]::SetEnvironmentVariable("Path", "$userPath;$dir", "User")
    Write-Host "Added $dir to your user PATH - restart the terminal to pick it up."
}
Write-Host "Installed turnout $tag to $dir\turnout.exe"

# Short alias `tn`: a copy, since symlinks need elevation on Windows. Skipped
# when another `tn` already answers in PATH; $env:TURNOUT_NO_ALIAS=1 opts out.
if (-not $env:TURNOUT_NO_ALIAS) {
    $alias = Join-Path $dir "tn.exe"
    $existing = Get-Command tn -ErrorAction SilentlyContinue
    if (-not $existing -or $existing.Source -eq $alias) {
        Copy-Item (Join-Path $dir "turnout.exe") $alias -Force
        Write-Host "Alias tn -> turnout"
    } else {
        Write-Host "Note: 'tn' already resolves to $($existing.Source) - alias skipped."
    }
}