1+ param (
2+ [switch ] $Update = $false
3+ )
4+
5+ function Get-Architecture {
6+ $architecture = [System.Runtime.InteropServices.RuntimeInformation ]::OSArchitecture
7+
8+ $arch = switch ($architecture ) {
9+ " X64" " amd64"
10+ " Arm64" " arm64"
11+ Default { " "
12+ }
13+
14+ if ($arch -eq " "
15+ throw " Unsupported architecture: ${architecture} "
16+ }
17+
18+ return $arch
19+ }
20+
21+ function Get-Version {
22+ param ([Parameter (Mandatory = $true )][bool ] $Update )
23+
24+ if ($Update ) {
25+ return " latest"
26+ }
27+
28+ return git describe -- tags -- exact- match 2> $null || " latest"
29+ }
30+
31+ function New-TemporaryDirectory {
32+ $tmp = [System.IO.Path ]::GetTempPath()
33+ $name = (New-Guid ).ToString(" N"
34+ $dir = New-Item - ItemType Directory - Path (Join-Path $tmp $name )
35+ return $dir.FullName
36+ }
37+
38+ function Get-Url {
39+ param ([Parameter (Mandatory = $true )][string ] $Version , [Parameter (Mandatory = $true )][string ] $Architecture )
40+
41+ if ($Version -eq " latest"
42+ return " https://github.com/databus23/helm-diff/releases/latest/download/helm-diff-windows-${Architecture} .tgz"
43+ }
44+ return " https://github.com/databus23/helm-diff/releases/download/${Version} /helm-diff-windows-${Architecture} .tgz"
45+ }
46+
47+ function Download-Plugin {
48+ param ([Parameter (Mandatory = $true )][string ] $Url , [Parameter (Mandatory = $true )][string ] $Output )
49+
50+ Invoke-WebRequest - OutFile $Output $Url
51+ }
52+
53+ function Install-Plugin {
54+ param ([Parameter (Mandatory = $true )][string ] $ArchiveDirectory , [Parameter (Mandatory = $true )][string ] $ArchiveName , [Parameter (Mandatory = $true )][string ] $Destination )
55+
56+ Push-Location $ArchiveDirectory
57+ tar - xzf $ArchiveName - C .
58+ Pop-Location
59+
60+ New-Item - ItemType Directory - Path $Destination - Force
61+ Copy-Item - Path (Join-Path $ArchiveDirectory " diff" " bin" " diff.exe" - Destination $Destination - Force
62+ }
63+
64+ $ErrorActionPreference = " Stop"
65+
66+ $archiveName = " helm-diff.tgz"
67+ $arch = Get-Architecture
68+ $version = Get-Version - Update $Update
69+ $tmpDir = New-TemporaryDirectory
70+
71+ trap { Remove-Item - path $tmpDir - Recurse - Force }
72+
73+ $url = Get-Url - Version $version - Architecture $arch
74+ $output = Join-Path $tmpDir $archiveName
75+
76+ Download- Plugin - Url $url - Output $output
77+ Install-Plugin - ArchiveDirectory $tmpDir - ArchiveName $archiveName - Destination (Join-Path $env: HELM_PLUGIN_DIR " bin"
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