feat(wrappers): canonical PowerShell bootstrap wrapper

2026-06-16 08:46:23 +02:00
parent 15ec24504c
commit a39c580b3c
1 changed files with 89 additions and 0 deletions
@@ -0,0 +1,89 @@
+#!/usr/bin/env pwsh
+# crucible - bootstrap wrapper (PowerShell). Prefers a crucible already on PATH;
+# otherwise downloads the latest released binary from Gitea into a per-version
+# cache and execs it.
+#
+# CANONICAL SOURCE: sow-tools/wrappers/crucible.ps1. Do not hand-edit copies in
+# consumer repos - kept in sync by sow-tools CI (see drift-check).
+#
+# Env: CRUCIBLE_HOME, CRUCIBLE_TOKEN, CRUCIBLE_GITEA, CRUCIBLE_REPO.
+$ErrorActionPreference = 'Stop'
+
+# 0. Prefer an existing crucible.
+$existing = Get-Command crucible -ErrorAction SilentlyContinue
+if ($existing) { & $existing.Source @args; exit $LASTEXITCODE }
+
+$gitea = if ($env:CRUCIBLE_GITEA) { $env:CRUCIBLE_GITEA } else { 'https://git.westgate.pw' }
+$repo  = if ($env:CRUCIBLE_REPO)  { $env:CRUCIBLE_REPO }  else { 'ShadowsOverWestgate/sow-tools' }
+
+# 1. OS/arch -> asset name (.exe on Windows).
+$os = if ($IsWindows) { 'windows' } elseif ($IsMacOS) { 'darwin' } else { 'linux' }
+$arch = switch ($env:PROCESSOR_ARCHITECTURE) {
+  'AMD64' { 'amd64' } 'ARM64' { 'arm64' } default { 'amd64' }
+}
+$ext = if ($os -eq 'windows') { '.exe' } else { '' }
+$asset = "crucible-$os-$arch$ext"
+
+# 2. Auth header (anon first, token fallback).
+$token = $env:CRUCIBLE_TOKEN
+$tokenFile = Join-Path $HOME '.config/crucible/token'
+if (-not $token -and (Test-Path $tokenFile)) { $token = (Get-Content $tokenFile -Raw).Trim() }
+function Invoke-Fetch($url, $outFile) {
+  try { Invoke-WebRequest -Uri $url -OutFile $outFile -UseBasicParsing; return $true } catch {}
+  if ($token) {
+    Invoke-WebRequest -Uri $url -OutFile $outFile -UseBasicParsing -Headers @{ Authorization = "token $token" }
+    return $true
+  }
+  return $false
+}
+
+# 3. Resolve latest tag.
+$tag = $null
+try {
+  $hdr = if ($token) { @{ Authorization = "token $token" } } else { @{} }
+  $rel = Invoke-RestMethod -Uri "$gitea/api/v1/repos/$repo/releases/latest" -Headers $hdr
+  $tag = $rel.tag_name
+} catch {}
+
+# 4. Cache dir.
+$cacheRoot = if ($env:CRUCIBLE_HOME) { $env:CRUCIBLE_HOME }
+  elseif ($env:LOCALAPPDATA) { Join-Path $env:LOCALAPPDATA 'crucible' }
+  else { Join-Path $HOME '.cache/crucible' }
+
+# 5. Offline fallback.
+if (-not $tag) {
+  if (Test-Path $cacheRoot) {
+    $cached = Get-ChildItem $cacheRoot -Directory | Sort-Object Name | Select-Object -Last 1
+    $cachedBin = if ($cached) { Join-Path $cached.FullName "crucible$ext" } else { $null }
+    if ($cachedBin -and (Test-Path $cachedBin)) {
+      Write-Error "crucible: offline - using cached $($cached.Name)" -ErrorAction Continue
+      & $cachedBin @args; exit $LASTEXITCODE
+    }
+  }
+  Write-Error "crucible: cannot reach $gitea and no cached binary found (set CRUCIBLE_TOKEN if private)."
+  exit 1
+}
+
+$destDir = Join-Path $cacheRoot $tag
+$bin = Join-Path $destDir "crucible$ext"
+
+# 6. Download + verify on cache miss.
+if (-not (Test-Path $bin)) {
+  New-Item -ItemType Directory -Force -Path $destDir | Out-Null
+  $base = "$gitea/$repo/releases/download/$tag"
+  $tmp = New-Item -ItemType Directory -Path (Join-Path ([System.IO.Path]::GetTempPath()) ([guid]::NewGuid()))
+  $tmpBin = Join-Path $tmp "crucible$ext"
+  Write-Host "crucible: fetching $asset $tag..."
+  if (-not (Invoke-Fetch "$base/$asset" $tmpBin)) { Write-Error "crucible: download failed for $asset"; exit 1 }
+  $sums = Join-Path $tmp 'SHA256SUMS'
+  if (Invoke-Fetch "$base/SHA256SUMS" $sums) {
+    $want = (Select-String -Path $sums -Pattern ([regex]::Escape($asset) + '$') | Select-Object -First 1).Line -split '\s+' | Select-Object -First 1
+    $got = (Get-FileHash $tmpBin -Algorithm SHA256).Hash.ToLower()
+    if ($want -and ($want.ToLower() -ne $got)) { Write-Error "crucible: checksum mismatch for $asset"; exit 1 }
+  }
+  Move-Item -Force $tmpBin $bin
+  Remove-Item -Recurse -Force $tmp
+}
+
+& $bin @args
+exit $LASTEXITCODE