Bundle SDL game MacOS app, code sign and make dmg for distribution

build.sh

#!/bin/bash
# build_sdl_app.sh
# Builds SharkShark.app bundle (no signing)
# Assumes:
#   - Folder "SharkShark" next to this script
#   - Icon file "SharkShark.icns" next to this script
#   - Executable SharkShark inside "SharkShark/"
#   - SDL frameworks inside "SharkShark/"

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
SRC_FOLDER="$SCRIPT_DIR/SharkShark"
ICON_FILE="$SCRIPT_DIR/SharkShark.icns"
APP_NAME="SharkShark"
APP_PATH="$SCRIPT_DIR/$APP_NAME.app"
ENTITLEMENTS="$SCRIPT_DIR/$APP_NAME.entitlements.plist"

# --- Clean previous app ---
rm -rf "$APP_PATH"

# --- Create app bundle ---
mkdir -p "$APP_PATH/Contents/MacOS" "$APP_PATH/Contents/Resources" "$APP_PATH/Contents/Frameworks"

# Copy executable
cp "$SRC_FOLDER/$APP_NAME" "$APP_PATH/Contents/MacOS/"

# Copy frameworks
for FMWK in "$SRC_FOLDER"/*.framework; do
    cp -R "$FMWK" "$APP_PATH/Contents/Frameworks/"
done

# Copy resources
cp -R "$SRC_FOLDER/res" "$APP_PATH/Contents/Resources/"
cp "$ICON_FILE" "$APP_PATH/Contents/Resources/AppIcon.icns"

# Create Info.plist
cat > "$APP_PATH/Contents/Info.plist" <<EOL
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
 "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>CFBundleName</key><string>$APP_NAME</string>
  <key>CFBundleDisplayName</key><string>$APP_NAME</string>
  <key>CFBundleExecutable</key><string>$APP_NAME</string>
  <key>CFBundleIdentifier</key><string>com.nas.$APP_NAME</string>
  <key>CFBundleVersion</key><string>1.0</string>
  <key>CFBundleShortVersionString</key><string>1.0</string>
  <key>CFBundlePackageType</key><string>APPL</string>
  <key>LSMinimumSystemVersion</key><string>10.13</string>
  <key>CFBundleIconFile</key><string>AppIcon</string>
</dict>
</plist>
EOL

# Create entitlements file next to script
cat > "$ENTITLEMENTS" <<EOL
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>com.apple.security.cs.allow-jit</key><true/>
    <key>com.apple.security.cs.allow-unsigned-executable-memory</key><true/>
    <key>com.apple.security.cs.disable-library-validation</key><true/>
</dict>
</plist>
EOL

# --- Fix rpaths and framework IDs ---
for FMWK in SDL2 SDL2_mixer SDL2_ttf; do
    FPATH="$APP_PATH/Contents/Frameworks/$FMWK.framework/Versions/A/$FMWK"
    install_name_tool -id @rpath/$FMWK.framework/Versions/A/$FMWK "$FPATH"
done

# Fix executable references
install_name_tool -change @rpath/SDL2.framework/Versions/A/SDL2 \
    @executable_path/../Frameworks/SDL2.framework/Versions/A/SDL2 "$APP_PATH/Contents/MacOS/$APP_NAME"
install_name_tool -change @rpath/SDL2_mixer.framework/Versions/A/SDL2_mixer \
    @executable_path/../Frameworks/SDL2_mixer.framework/Versions/A/SDL2_mixer "$APP_PATH/Contents/MacOS/$APP_NAME"
install_name_tool -change @rpath/SDL2_ttf.framework/Versions/A/SDL2_ttf \
    @executable_path/../Frameworks/SDL2_ttf.framework/Versions/A/SDL2_ttf "$APP_PATH/Contents/MacOS/$APP_NAME"

echo "=== Build complete ==="
echo "App bundle ready at: $APP_PATH"
echo "Entitlements file created at: $ENTITLEMENTS"
echo "You can now sign and notarize separately."

sign.sh

#!/bin/bash
# sign_and_dmg.sh
# Signs SharkShark.app and creates a DMG for notarization

APP_NAME="SharkShark"
APP_PATH="$PWD/$APP_NAME.app"
TEAM_ID="xxxxxxxx"
TEAM_NAME="some name here"
SIGN_ID="Developer ID Application: $TEAM_NAME ($TEAM_ID)"
DMG_PATH="$PWD/$APP_NAME.dmg"
APPLE_ID="[email protected]"

if [ ! -d "$APP_PATH" ]; then
    echo "Error: $APP_NAME.app not found in current directory."
    exit 1
fi

echo "=== Cleaning previous DMG ==="
rm -f "$DMG_PATH"

echo "=== Deep-signing the app ==="
codesign --deep --force --options runtime --sign "$SIGN_ID" "$APP_PATH"

echo "=== Verifying signature ==="
codesign --verify --deep --strict --verbose=2 "$APP_PATH"
spctl --assess --type execute --verbose "$APP_PATH"

echo "=== Creating DMG ==="
hdiutil create -volname "$APP_NAME" -srcfolder "$APP_PATH" -ov -format UDZO "$DMG_PATH"

echo "=== DMG ready for notarization ==="
echo "Submit with:"
echo "xcrun notarytool submit \"$DMG_PATH\" --apple-id \"$APPLE_ID\" --team-id $TEAM_ID --wait"