refactor(plugin.yaml): enhance platform support and update commands

install-binary.ps1

@@ -0,0 +1,75 @@
+param (
+  [switch] $Update = $false
+)
+
+function Get-Architecture {
+  $architecture = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
+
+  $arch = switch ($architecture) {
+    "X64"  { "amd64" }
+    "Arm64" { "arm64" }
+    Default { "" }
+  }
+
+  if ($arch -eq "") {
+    throw "Unsupported architecture: ${architecture}"
+  }
+
+  return $arch
+}
+
+function Get-Version {
+  param ([Parameter(Mandatory=$true)][bool] $Update)
+
+  if ($Update) {
+    return "latest"
+  }
+
+  return git describe --tags --exact-match 2>$null || "latest"
+}
+
+function New-TemporaryDirectory {
+  $tmp = [System.IO.Path]::GetTempPath()
+  $name = (New-Guid).ToString("N")
+  $dir = New-Item -ItemType Directory -Path (Join-Path $tmp $name)
+  return $dir.FullName
+}
+
+function Get-Url {
+  param ([Parameter(Mandatory=$true)][string] $Version, [Parameter(Mandatory=$true)][string] $Architecture)
+
+  if ($Version -eq "latest") {
+    return "https://github.com/databus23/helm-diff/releases/latest/download/helm-diff-windows-${Architecture}.tgz"
+  }
+  return "https://github.com/databus23/helm-diff/releases/download/${Version}/helm-diff-windows-${Architecture}.tgz"
+}
+
+function Download-Plugin {
+  param ([Parameter(Mandatory=$true)][string] $Url, [Parameter(Mandatory=$true)][string] $Output)
+
+  Invoke-WebRequest -OutFile $Output $Url
+}
+
+function Install-Plugin {
+  param ([Parameter(Mandatory=$true)][string] $ArchiveDirectory, [Parameter(Mandatory=$true)][string] $ArchiveName, [Parameter(Mandatory=$true)][string] $Destination)
+
+  tar -xzf (Join-Path $ArchiveDirectory $ArchiveName) -C $ArchiveDirectory
+
+  New-Item -ItemType Directory -Path $Destination -Force
+  Copy-Item -Path (Join-Path $ArchiveDirectory "diff" "bin" "diff.exe") -Destination $Destination -Force
+}
+
+$ErrorActionPreference = "Stop"
+
+$archiveName = "helm-diff.tgz"
+$arch = Get-Architecture
+$version = Get-Version -Update $Update
+$tmpDir = New-TemporaryDirectory
+
+trap {  Remove-Item -path $tmpDir -Recurse -Force }
+
+$url = Get-Url -Version $version -Architecture $arch
+$output = Join-Path $tmpDir $archiveName
+
+Download-Plugin -Url $url -Output $output
+Install-Plugin -ArchiveDirectory $tmpDir -ArchiveName $archiveName -Destination (Join-Path $env:HELM_PLUGIN_DIR "bin")

plugin.yaml

@@ -1,11 +1,30 @@
-name: "diff"
+name: diff
 # Version is the version of Helm plus the number of official builds for this
 # plugin
 version: "3.12.0"
 usage: "Preview helm upgrade changes as a diff"
 description: "Preview helm upgrade changes as a diff"
 useTunnel: true
-command: "$HELM_PLUGIN_DIR/bin/diff"
-hooks:
-  install: "$HELM_PLUGIN_DIR/install-binary.sh"
-  update: "$HELM_PLUGIN_DIR/install-binary.sh -u"
+platformCommand:
+  - command: ${HELM_PLUGIN_DIR}/bin/diff
+  - os: windows
+    command: ${HELM_PLUGIN_DIR}\bin\diff.exe
+
+platformHooks:
+  install:
+    - command: ${HELM_PLUGIN_DIR}/install-binary.sh
+    - os: windows
+      command: pwsh
+      args:
+          - -c
+          - ${HELM_PLUGIN_DIR}/install-binary.ps1
+  update:
+    - command: ${HELM_PLUGIN_DIR}/install-binary.sh
+      args:
+        - -u
+    - os: windows
+      command: pwsh
+      args:
+        - -c
+        - ${HELM_PLUGIN_DIR}/install-binary.ps1
+        - -Update