ci: add icon conversion for Linux/Mac builds, use build/icon.png

Author: Brendan Gray

.github/workflows/build.yml

@@ -56,6 +56,9 @@ jobs:
       - name: Build renderer
         run: npm run build:renderer
 
+      - name: Convert icon for Linux
+        run: convert icon.ico[0] build/icon.png || (mkdir -p build && cp icon.ico build/icon.png)
+
       - name: Build Linux AppImage
         run: npx electron-builder --linux --x64 --config electron-builder.nosign.json
         env:
@@ -83,6 +86,9 @@ jobs:
       - name: Build renderer
         run: npm run build:renderer
 
+      - name: Convert icon for macOS
+        run: sips -s format png icon.ico --out build/icon.png || cp icon.ico build/icon.png
+
       - name: Build macOS DMG (x64 + arm64)
         run: npx electron-builder --mac --x64 --arm64 --config electron-builder.nosign.json
         env:

electron-builder.nosign.json

@@ -17,7 +17,7 @@
   ],
   "mac": {
     "category": "public.app-category.developer-tools",
-    "icon": "icon.ico",
+    "icon": "build/icon.png",
     "target": [
       {
         "target": "dmg",
@@ -56,7 +56,7 @@
     "artifactName": "guIDE-Setup-${version}.${ext}"
   },
   "linux": {
-    "icon": "icon.ico",
+    "icon": "build/icon.png",
     "target": [
       {
         "target": "AppImage",