install.ps1 RawHistoryFolder

1# zot installer for Windows (PowerShell).
2#
3# Usage (in PowerShell):
4#   iwr -useb https://raw.githubusercontent.com/patriceckhart/zot/main/install.ps1 | iex
5#
6# Or with arguments:
7#   $env:ZOT_VERSION = "v0.0.1"
8#   $env:ZOT_PREFIX  = "$HOME\bin"
9#   iwr -useb https://raw.githubusercontent.com/patriceckhart/zot/main/install.ps1 | iex
10#
11# Detects architecture, downloads the matching .zip from the GitHub
12# release, verifies the sha256 against checksums.txt, extracts zot.exe,
13# and moves it into $ZOT_PREFIX (defaults to $HOME\bin, added to PATH
14# via the User environment if missing).
15#
16# While the repo is private, set $env:GITHUB_TOKEN to a PAT with
17# `contents:read` scope; the script uses it for every download. Once
18# the repo goes public, the token becomes optional.
19
20
21[CmdletBinding()]
22param(
23  [string]$Version = $env:ZOT_VERSION,
24  [string]$Prefix  = $env:ZOT_PREFIX
25)
26
27$ErrorActionPreference = "Stop"
28
29$owner  = "patriceckhart"
30$repo   = "zot"
31$binary = "zot"
32
33# Build Authorization header list once; used on every HTTP call so the
34# script works against private repos when $env:GITHUB_TOKEN is set.
35$headers = @{}
36if ($env:GITHUB_TOKEN) { $headers["Authorization"] = "Bearer $($env:GITHUB_TOKEN)" }
37
38if (-not $Version) { $Version = "latest" }
39if (-not $Prefix)  { $Prefix  = Join-Path $HOME "bin" }
40
41function Msg($m)  { Write-Host "==> $m" -ForegroundColor Cyan }
42function Warn($m) { Write-Warning $m }
43function Die($m)  { Write-Error $m; exit 1 }
44
45# ---- detect architecture ----
46
47switch -wildcard ($env:PROCESSOR_ARCHITECTURE) {
48  "AMD64" { $arch = "amd64" }
49  "ARM64" { $arch = "arm64" }
50  default { Die "unsupported arch: $($env:PROCESSOR_ARCHITECTURE)" }
51}
52
53# ARM64 Windows isn't shipped (see .goreleaser.yaml ignore rule) — fall
54# back to amd64 which runs fine under ARM64 emulation.
55if ($arch -eq "arm64") {
56  Warn "windows/arm64 is not published; falling back to amd64"
57  $arch = "amd64"
58}
59
60# ---- resolve version ----
61
62if ($Version -eq "latest") {
63  if ($headers.ContainsKey("Authorization")) {
64    $api = Invoke-RestMethod -Headers $headers "https://api.github.com/repos/$owner/$repo/releases/latest"
65    $Version = $api.tag_name
66  } else {
67    $resp = Invoke-WebRequest -UseBasicParsing -MaximumRedirection 5 `
68      "https://github.com/$owner/$repo/releases/latest"
69    if ($resp.BaseResponse.ResponseUri -match '/tag/([^/]+)') {
70      $Version = $Matches[1]
71    } else {
72      Die "could not resolve latest version (set `$env:GITHUB_TOKEN if the repo is private)"
73    }
74  }
75}
76
77if (-not $Version.StartsWith("v")) { $Version = "v$Version" }
78$verNum = $Version.TrimStart("v")
79
80# ---- download + verify + extract ----
81
82$archive     = "${binary}_${verNum}_windows_${arch}.zip"
83$baseUrl     = "https://github.com/$owner/$repo/releases/download/$Version"
84$archiveUrl  = "$baseUrl/$archive"
85$checksumUrl = "$baseUrl/checksums.txt"
86
87$tmp = New-Item -ItemType Directory -Path (Join-Path $env:TEMP ("zot-install-" + [System.Guid]::NewGuid().ToString("N").Substring(0,8)))
88
89try {
90  Msg "downloading $archive"
91  Invoke-WebRequest -UseBasicParsing -Headers $headers -Uri $archiveUrl -OutFile (Join-Path $tmp $archive)
92
93  Msg "verifying checksum"
94  $checksums = Invoke-WebRequest -UseBasicParsing -Headers $headers -Uri $checksumUrl | Select-Object -ExpandProperty Content
95  $expected  = ($checksums -split "`n" | ForEach-Object { $_.Trim() } | Where-Object { $_ -match ("\s" + [regex]::Escape($archive) + "$") } | Select-Object -First 1)
96  if (-not $expected) { Die "no checksum for $archive in checksums.txt" }
97  $expectedHash = ($expected -split "\s+")[0]
98
99  $actualHash = (Get-FileHash -Path (Join-Path $tmp $archive) -Algorithm SHA256).Hash.ToLower()
100  if ($expectedHash.ToLower() -ne $actualHash) {
101    Die "checksum mismatch: expected $expectedHash, got $actualHash"
102  }
103
104  Msg "extracting"
105  Expand-Archive -Path (Join-Path $tmp $archive) -DestinationPath $tmp -Force
106
107  $exe = Join-Path $tmp "$binary.exe"
108  if (-not (Test-Path $exe)) { Die "archive did not contain $binary.exe" }
109
110  Msg "installing to $Prefix\$binary.exe"
111  New-Item -ItemType Directory -Path $Prefix -Force | Out-Null
112  Copy-Item $exe (Join-Path $Prefix "$binary.exe") -Force
113
114  # ---- PATH hint ----
115
116  $userPath = [Environment]::GetEnvironmentVariable("Path", "User")
117  $parts = $userPath -split ";" | Where-Object { $_ }
118  if (-not ($parts -contains $Prefix)) {
119    Warn "$Prefix is not on your user PATH"
120    Warn "adding it for future sessions..."
121    [Environment]::SetEnvironmentVariable("Path", ($userPath.TrimEnd(";") + ";" + $Prefix), "User")
122    Warn "open a new terminal to pick up the change, or run:"
123    Warn "  `$env:Path = `"$Prefix;`$env:Path`""
124  }
125
126  Msg "installed. run:  zot --help"
127}
128finally {
129  Remove-Item -Recurse -Force $tmp -ErrorAction SilentlyContinue
130}