extras: add PowerShell greeting port, Rust gm-switch and Windows installers
- powershell_greeting: PowerShell port of fish_greeting (fastfetch random logo, sixel/kitty-direct per terminal, logs, modes) - win-gm-switch: Rust port of gm-switch.cpp (cross-platform mode file, --status, Start Menu shortcuts installer) - install-windows.ps1 umbrella installer; README pointers
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# Install the J621 PowerShell greeting:
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# * copies J621Greeting.ps1 into %APPDATA%\j621Greeting\
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# * writes %APPDATA%\j621Greeting\config.ps1 (asks for the API origin and an
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# optional token, or takes them as parameters)
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# * wires the greeting into your PowerShell profile (marker block, once)
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# * checks the tools it needs and probes the configured backend
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#
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# Usage:
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# .\install.ps1
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# .\install.ps1 -Url https://j621.example.ts.net -Token <api-token>
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# .\install.ps1 -NoPrompt # never ask, keep/derive defaults
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# .\install.ps1 -Force # rewrite an existing config
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# .\install.ps1 -NoProfilePatch # do not touch your PowerShell profile
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# .\install.ps1 -Uninstall # remove the profile block + installed script
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[CmdletBinding()]
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param(
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[string]$Url,
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[string]$Token,
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[switch]$NoPrompt,
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[switch]$Force,
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[switch]$NoProfilePatch,
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[switch]$Uninstall
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)
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$ErrorActionPreference = 'Stop'
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$here = $PSScriptRoot
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if (-not $here) { $here = Split-Path -Parent $MyInvocation.MyCommand.Path }
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$configDir = Join-Path $env:APPDATA 'j621Greeting'
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$configFile = Join-Path $configDir 'config.ps1'
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$installedScript = Join-Path $configDir 'J621Greeting.ps1'
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$defaultUrl = 'https://j621.rainbow-herring.ts.net'
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$markerBegin = '# >>> J621 greeting >>>'
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$markerEnd = '# <<< J621 greeting <<<'
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$profilePath = $PROFILE
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function Get-InstalledConfigValue {
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param([string]$Name)
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if (-not (Test-Path -LiteralPath $configFile)) { return $null }
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$content = Get-Content -LiteralPath $configFile -Raw
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$rx = '\$env:' + $Name + ' = ''([^'']*)'''
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if ($content -match $rx) { return $Matches[1] }
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return $null
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}
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function Remove-ProfileBlock {
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if (-not (Test-Path -LiteralPath $profilePath)) { return }
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$lines = @(Get-Content -LiteralPath $profilePath)
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if (-not ($lines -contains $markerBegin)) { return }
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$out = New-Object System.Collections.Generic.List[string]
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$inside = $false
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foreach ($line in $lines) {
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if ($line.Trim() -eq $markerBegin) { $inside = $true; continue }
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if ($line.Trim() -eq $markerEnd) { $inside = $false; continue }
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if (-not $inside) { $out.Add($line) }
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}
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while ($out.Count -gt 0 -and [string]::IsNullOrWhiteSpace($out[$out.Count - 1])) { $out.RemoveAt($out.Count - 1) }
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Set-Content -LiteralPath $profilePath -Value ($out -join "`r`n") -Encoding ASCII
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}
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# --- Uninstall -----------------------------------------------------------------
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if ($Uninstall) {
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Remove-ProfileBlock
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if (Test-Path -LiteralPath $installedScript) { Remove-Item -LiteralPath $installedScript -Force }
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Write-Host "Removed the J621 greeting from the profile and $installedScript"
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Write-Host "Your config and logs were left in place: $configDir"
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exit 0
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}
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# --- Install the function ------------------------------------------------------
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New-Item -ItemType Directory -Path $configDir -Force | Out-Null
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$source = Join-Path $here 'J621Greeting.ps1'
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if (-not (Test-Path -LiteralPath $source)) { throw "J621Greeting.ps1 not found next to this installer ($source)" }
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Copy-Item -LiteralPath $source -Destination $installedScript -Force
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Write-Host "Installed $installedScript"
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# --- Configuration -------------------------------------------------------------
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$writeConfig = $false
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if (-not (Test-Path -LiteralPath $configFile)) {
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$writeConfig = $true
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} elseif ($Force -or $PSBoundParameters.ContainsKey('Url')) {
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$writeConfig = $true
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} else {
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Write-Host "Keeping existing $configFile (use -Force to rewrite it)"
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$current = Get-InstalledConfigValue -Name 'J621_BASE'
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if ($current) { $Url = $current }
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if (-not $Token) { $Token = Get-InstalledConfigValue -Name 'J621_TOKEN' }
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}
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if ($writeConfig) {
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if (-not $NoPrompt) {
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if (-not $Url) {
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$answer = Read-Host "API origin [$defaultUrl]"
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if ($answer) { $Url = $answer }
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}
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if (-not $Token) {
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$answer = Read-Host 'API token (optional, Enter to run as a guest)'
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if ($answer) { $Token = $answer }
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}
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}
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if (-not $Url) { $Url = $defaultUrl }
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$Url = $Url.Trim().TrimEnd('/').Replace("'", "")
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if ($Token) { $Token = $Token.Trim().Replace("'", "") }
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$lines = New-Object System.Collections.Generic.List[string]
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$lines.Add('# J621 greeting configuration - written by install.ps1 on ' + (Get-Date -Format 'yyyy-MM-dd'))
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$lines.Add('# Values here are defaults; an environment variable already set in your')
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$lines.Add('# session wins over them.')
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$lines.Add('if (-not $env:J621_BASE) { $env:J621_BASE = ''' + $Url + ''' }')
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if ($Token) {
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$lines.Add('if (-not $env:J621_TOKEN) { $env:J621_TOKEN = ''' + $Token + ''' }')
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} else {
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$lines.Add('# if (-not $env:J621_TOKEN) { $env:J621_TOKEN = ''paste-a-token-here'' }')
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}
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$lines.Add('# if (-not $env:J621_WEB) { $env:J621_WEB = ''' + $Url + ''' }')
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$lines.Add('# if (-not $env:J621_FASTFETCH_CONFIG) { $env:J621_FASTFETCH_CONFIG = ''jake'' }')
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Set-Content -LiteralPath $configFile -Value $lines -Encoding ASCII
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Write-Host "Wrote $configFile"
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}
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# --- Profile -------------------------------------------------------------------
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if (-not $NoProfilePatch) {
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$existing = ''
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if (Test-Path -LiteralPath $profilePath) { $existing = Get-Content -LiteralPath $profilePath -Raw }
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if ($existing -match [regex]::Escape($markerBegin)) {
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Write-Host 'Profile already sources the greeting (marker present)'
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} else {
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$normalized = $existing -replace "`r`n", "`n"
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$legacy = @(
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'# Fastfetch greeting on interactive PowerShell start',
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'if ([Environment]::UserInteractive -and -not [Console]::IsOutputRedirected) {',
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' fastfetch',
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'}'
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) -join "`n"
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if ($normalized.Contains($legacy)) {
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$normalized = $normalized.Replace($legacy, '').TrimEnd() + "`n"
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Write-Host 'Replaced the plain fastfetch block in your profile'
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}
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$block = @(
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$markerBegin,
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'# Random J621 library image as the fastfetch logo (extras/powershell_greeting).',
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'$j621GreetingScript = "$env:APPDATA\j621Greeting\J621Greeting.ps1"',
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'if ((Test-Path -LiteralPath $j621GreetingScript) -and [Environment]::UserInteractive -and -not [Console]::IsOutputRedirected) {',
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' . $j621GreetingScript',
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' Show-J621Greeting',
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'}',
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$markerEnd
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) -join "`r`n"
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$profileDir = Split-Path -Parent $profilePath
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if (-not (Test-Path -LiteralPath $profileDir)) { New-Item -ItemType Directory -Path $profileDir -Force | Out-Null }
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Set-Content -LiteralPath $profilePath -Value ($normalized.TrimEnd() + "`r`n`r`n" + $block + "`r`n") -Encoding ASCII
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Write-Host "Added the J621 greeting to $profilePath"
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}
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}
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# --- Dependencies --------------------------------------------------------------
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$problems = 0
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foreach ($tool in 'fastfetch', 'curl.exe') {
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if (-not (Get-Command $tool -ErrorAction SilentlyContinue)) {
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$problems = 1
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Write-Host "Missing required tool: $tool"
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}
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}
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if (-not ($env:WT_SESSION -or $env:WEZTERM_PANE)) {
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Write-Host 'Note: image logos need Windows Terminal 1.22+ (sixel) or WezTerm (kitty graphics);'
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Write-Host 'other terminals fall back to a plain fastfetch.'
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}
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# --- Probe the configured backend -----------------------------------------------
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Write-Host ''
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$probeUrl = $Url
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$probeToken = $Token
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if (-not $probeUrl) { $probeUrl = $defaultUrl }
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Write-Host "Checking $probeUrl ..."
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$health = & curl.exe -s -m 10 ($probeUrl + '/health') 2>$null | Out-String
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if ($health -match '"status"\s*:\s*"ok"') {
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Write-Host ' backend: ok'
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$probeArgs = @('-s', '-m', '10')
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if ($probeToken) { $probeArgs += @('-H', "Authorization: Token $probeToken") }
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$probe = & curl.exe @probeArgs ($probeUrl + '/api/random/?fastfetch=1') 2>$null | Out-String
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$detail = $null
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try {
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$parsed = $probe | ConvertFrom-Json
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if ($parsed.detail) { $detail = [string]$parsed.detail }
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} catch { }
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if ($detail) {
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Write-Host " random: $detail"
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if (-not $probeToken) { Write-Host ' (a token would also let you see items that are hidden from guests)' }
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} else {
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Write-Host ' random: ok'
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}
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} else {
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$problems = 1
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Write-Host " backend did not answer at $probeUrl/health"
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Write-Host " got: $health"
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Write-Host " Fix J621_BASE in $configFile (or pass -Url) and run again."
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}
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# --- Wrap up --------------------------------------------------------------------
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Write-Host ''
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if ($problems -eq 0) {
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Write-Host 'Done. Test it now with: Show-J621Greeting'
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} else {
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Write-Host 'Finished with problems above; the greeting will report them too.'
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}
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Write-Host ('Rating mode lives in ' + (Join-Path $configDir 'greeting_mode') + ' (0=NSFW, 1=SFW, 2=Questionable).')
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Write-Host 'gm-switch.exe and its Start Menu shortcuts write that same file.'
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exit $problems
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