ci: add macos dmg release workflow

Scripts/create_app_bundle.sh

@@ -4,6 +4,8 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 APP_NAME="Firelink"
 CONFIGURATION="${CONFIGURATION:-release}"
+MARKETING_VERSION="${MARKETING_VERSION:-0.1.0}"
+BUILD_NUMBER="${BUILD_NUMBER:-1}"
 APP_DIR="$ROOT_DIR/build/$APP_NAME.app"
 CONTENTS_DIR="$APP_DIR/Contents"
 MACOS_DIR="$CONTENTS_DIR/MacOS"
@@ -34,9 +36,9 @@ cat > "$CONTENTS_DIR/Info.plist" <<PLIST
   <key>CFBundlePackageType</key>
   <string>APPL</string>
   <key>CFBundleShortVersionString</key>
-  <string>0.1.0</string>
+  <string>$MARKETING_VERSION</string>
   <key>CFBundleVersion</key>
-  <string>1</string>
+  <string>$BUILD_NUMBER</string>
   <key>LSMinimumSystemVersion</key>
   <string>14.0</string>
   <key>LSApplicationCategoryType</key>

Scripts/create_dmg.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+APP_NAME="Firelink"
+VERSION="${VERSION:-0.1.0}"
+ARCH="${ARCH:-arm64}"
+APP_DIR="$ROOT_DIR/build/$APP_NAME.app"
+DIST_DIR="$ROOT_DIR/dist"
+DMG_STAGING_DIR="$ROOT_DIR/build/dmg"
+DMG_PATH="$DIST_DIR/$APP_NAME-$VERSION-mac-$ARCH.dmg"
+
+if [[ ! -d "$APP_DIR" ]]; then
+  echo "Missing app bundle: $APP_DIR" >&2
+  echo "Run Scripts/create_app_bundle.sh first." >&2
+  exit 1
+fi
+
+rm -rf "$DMG_STAGING_DIR"
+mkdir -p "$DMG_STAGING_DIR" "$DIST_DIR"
+cp -R "$APP_DIR" "$DMG_STAGING_DIR/"
+ln -s /Applications "$DMG_STAGING_DIR/Applications"
+
+rm -f "$DMG_PATH"
+hdiutil create \
+  -volname "$APP_NAME $VERSION" \
+  -srcfolder "$DMG_STAGING_DIR" \
+  -ov \
+  -format UDZO \
+  "$DMG_PATH"
+
+echo "Created $DMG_PATH"