Partial alignment: add installer branding pipeline parity

Author: eoinjordan

.github/workflows/build-windows-installer.yml

@@ -55,6 +55,14 @@ jobs:
         shell: pwsh
         run: choco install nsis --no-progress -y
 
+      - name: Install ImageMagick
+        shell: pwsh
+        run: choco install imagemagick --no-progress -y
+
+      - name: Generate installer branding assets
+        shell: pwsh
+        run: windows-installer/prepare-branding.ps1
+
       - name: Build NSIS installer
         shell: pwsh
         run: |

windows-installer/.gitignore

@@ -1,2 +1,3 @@
 staging/
 output/
+branding/

windows-installer/installer.nsi

@@ -16,13 +16,19 @@ SetCompressor /SOLID lzma
 !define UNINSTALL_KEY     "Software\Microsoft\Windows\CurrentVersion\Uninstall\EdgeImpulseLinuxCLI"
 !define STAGING_DIR       "staging"
 !define OUTPUT_DIR        "output"
+!define BRAND_HEADER_BMP  "branding\header.bmp"
+!define BRAND_WELCOME_BMP "branding\welcome.bmp"
 
 !include "MUI2.nsh"
 !include "x64.nsh"
 !include "WinMessages.nsh"
 !include "FileFunc.nsh"
 
 !define MUI_ABORTWARNING
+!define MUI_HEADERIMAGE
+!define MUI_HEADERIMAGE_RIGHT
+!define MUI_HEADERIMAGE_BITMAP "${BRAND_HEADER_BMP}"
+!define MUI_WELCOMEFINISHPAGE_BITMAP "${BRAND_WELCOME_BMP}"
 
 !insertmacro MUI_PAGE_WELCOME
 !insertmacro MUI_PAGE_LICENSE "${STAGING_DIR}\LICENSE.txt"

windows-installer/prepare-branding.ps1

@@ -0,0 +1,45 @@
+[CmdletBinding()]
+param()
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+$repoRoot = Resolve-Path "$PSScriptRoot\.."
+$sourceImage = Join-Path $repoRoot "img\linux-collection.png"
+$brandingDir = Join-Path $PSScriptRoot "branding"
+$headerBmp = Join-Path $brandingDir "header.bmp"
+$welcomeBmp = Join-Path $brandingDir "welcome.bmp"
+
+if (-not (Test-Path $sourceImage)) {
+    throw "Branding source image not found: $sourceImage"
+}
+
+New-Item -ItemType Directory -Force -Path $brandingDir | Out-Null
+
+$magick = Get-Command magick -ErrorAction SilentlyContinue
+if (-not $magick) {
+    throw "ImageMagick (magick) is required to generate NSIS branding bitmaps"
+}
+
+Write-Host "Generating NSIS branding bitmaps from $sourceImage"
+
+# NSIS header image: 150x57
+& $magick.Source "$sourceImage" `
+    -background white -gravity center `
+    -resize 150x57 `
+    -extent 150x57 `
+    BMP3:"$headerBmp"
+
+# NSIS welcome/finish side image: 164x314
+& $magick.Source "$sourceImage" `
+    -background white -gravity center `
+    -resize 164x314 `
+    -extent 164x314 `
+    BMP3:"$welcomeBmp"
+
+if (-not (Test-Path $headerBmp) -or -not (Test-Path $welcomeBmp)) {
+    throw "Failed to generate branding assets"
+}
+
+Write-Host "Branding assets generated:"
+Get-ChildItem $brandingDir | Format-Table Name, Length -AutoSize