icns support

Author: jonathanlab

build/Assets.car

@@ -28,6 +28,12 @@ const config: ForgeConfig = {
   ],
   hooks: {
     generateAssets: async () => {
+      // Generate ICNS from source PNG
+      if (existsSync("build/[email protected]")) {
+        console.log("Generating ICNS icon...");
+        execSync("bash scripts/generate-icns.sh", { stdio: "inherit" });
+      }
+
       // Compile liquid glass icon to Assets.car
       if (existsSync("build/icon.icon")) {
         console.log("Compiling liquid glass icon...");

build/app-icon.icns

@@ -14,6 +14,7 @@
     "make": "electron-forge make",
     "publish": "electron-forge publish",
     "build-native": "bash scripts/build-native-modules.sh",
+    "build-icons": "bash scripts/generate-icns.sh",
     "typecheck": "tsc -p tsconfig.node.json --noEmit && tsc -p tsconfig.web.json --noEmit",
     "lint": "biome check --write --unsafe",
     "format": "biome format --write",

build/[email protected]

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# Generate ICNS file from a source PNG
+# Usage: bash scripts/generate-icns.sh [source.png] [output.icns]
+# Defaults: source=build/[email protected], output=build/app-icon.icns
+
+set -e
+
+SOURCE_PNG="${1:-build/icon@3x.png}"
+OUTPUT_ICNS="${2:-build/app-icon.icns}"
+ICONSET_DIR=$(mktemp -d)/icon.iconset
+
+if [ ! -f "$SOURCE_PNG" ]; then
+  echo "Error: Source PNG not found: $SOURCE_PNG"
+  exit 1
+fi
+
+echo "Creating iconset from $SOURCE_PNG..."
+
+mkdir -p "$ICONSET_DIR"
+
+# Scale factor for macOS icon guidelines: 832/1024 = 13/16 = 0.8125
+# This gives proper padding matching native macOS icons
+SCALE=0.8125
+
+# Generate all required icon sizes with padding
+sips -z 16 16     "$SOURCE_PNG" --out "$ICONSET_DIR/icon_16x16.png" > /dev/null
+sips -Z $(echo "16 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/icon_16x16.png" --padToHeightWidth 16 16 > /dev/null
+
+sips -z 32 32     "$SOURCE_PNG" --out "$ICONSET_DIR/[email protected]" > /dev/null
+sips -Z $(echo "32 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/[email protected]" --padToHeightWidth 32 32 > /dev/null
+
+sips -z 32 32     "$SOURCE_PNG" --out "$ICONSET_DIR/icon_32x32.png" > /dev/null
+sips -Z $(echo "32 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/icon_32x32.png" --padToHeightWidth 32 32 > /dev/null
+
+sips -z 64 64     "$SOURCE_PNG" --out "$ICONSET_DIR/[email protected]" > /dev/null
+sips -Z $(echo "64 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/[email protected]" --padToHeightWidth 64 64 > /dev/null
+
+sips -z 128 128   "$SOURCE_PNG" --out "$ICONSET_DIR/icon_128x128.png" > /dev/null
+sips -Z $(echo "128 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/icon_128x128.png" --padToHeightWidth 128 128 > /dev/null
+
+sips -z 256 256   "$SOURCE_PNG" --out "$ICONSET_DIR/[email protected]" > /dev/null
+sips -Z $(echo "256 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/[email protected]" --padToHeightWidth 256 256 > /dev/null
+
+sips -z 256 256   "$SOURCE_PNG" --out "$ICONSET_DIR/icon_256x256.png" > /dev/null
+sips -Z $(echo "256 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/icon_256x256.png" --padToHeightWidth 256 256 > /dev/null
+
+sips -z 512 512   "$SOURCE_PNG" --out "$ICONSET_DIR/[email protected]" > /dev/null
+sips -Z $(echo "512 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/[email protected]" --padToHeightWidth 512 512 > /dev/null
+
+sips -z 512 512   "$SOURCE_PNG" --out "$ICONSET_DIR/icon_512x512.png" > /dev/null
+sips -Z $(echo "512 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/icon_512x512.png" --padToHeightWidth 512 512 > /dev/null
+
+sips -z 1024 1024 "$SOURCE_PNG" --out "$ICONSET_DIR/[email protected]" > /dev/null
+sips -Z $(echo "1024 * $SCALE" | bc | cut -d. -f1) "$ICONSET_DIR/[email protected]" --padToHeightWidth 1024 1024 > /dev/null
+
+echo "Converting iconset to ICNS..."
+
+# Convert iconset to icns
+iconutil -c icns "$ICONSET_DIR" -o "$OUTPUT_ICNS"
+
+# Clean up
+rm -rf "$(dirname "$ICONSET_DIR")"
+
+echo "✓ Created $OUTPUT_ICNS"