Add files and scripts to build for Steam Link

scripts/build-steamlink-app.sh

@@ -0,0 +1,50 @@
+BUILD_CONFIG="release"
+
+fail()
+{
+	echo "$1" 1>&2
+	exit 1
+}
+
+if [ "$STEAMLINK_SDK_PATH" == "" ]; then
+  fail "You must set STEAMLINK_SDK_PATH to build for Steam Link"
+fi
+
+BUILD_ROOT=$PWD/build
+SOURCE_ROOT=$PWD
+BUILD_FOLDER=$BUILD_ROOT/build-$BUILD_CONFIG
+DEPLOY_FOLDER=$BUILD_ROOT/deploy-$BUILD_CONFIG
+INSTALLER_FOLDER=$BUILD_ROOT/installer-$BUILD_CONFIG
+VERSION=`cat $SOURCE_ROOT/app/version.txt`
+
+echo Cleaning output directories
+rm -rf $BUILD_FOLDER
+rm -rf $DEPLOY_FOLDER
+rm -rf $INSTALLER_FOLDER
+mkdir $BUILD_ROOT
+mkdir $BUILD_FOLDER
+mkdir $DEPLOY_FOLDER
+mkdir $INSTALLER_FOLDER
+
+echo Initializing Steam Link SDK
+source $STEAMLINK_SDK_PATH/setenv.sh || fail "SL SDK initialization failed!"
+
+echo Configuring the project
+pushd $BUILD_FOLDER
+qmake $SOURCE_ROOT/moonlight-qt.pro || fail "Qmake failed!"
+popd
+
+echo Compiling Moonlight in $BUILD_CONFIG configuration
+pushd $BUILD_FOLDER
+make -j$(nproc) $(echo "$BUILD_CONFIG" | tr '[:upper:]' '[:lower:]') || fail "Make failed!"
+popd
+
+echo Creating app bundle
+mkdir -p $DEPLOY_FOLDER/steamlink/apps/moonlight/bin
+cp $BUILD_FOLDER/app/moonlight $DEPLOY_FOLDER/steamlink/apps/moonlight/bin/ || fail "Binary copy failed!"
+cp $SOURCE_ROOT/app/deploy/steamlink/* $DEPLOY_FOLDER/steamlink/apps/moonlight/ || fail "Metadata copy failed!"
+pushd $DEPLOY_FOLDER
+zip -r $INSTALLER_FOLDER/Moonlight-SteamLink-$VERSION.zip . || fail "Zip failed!"
+popd
+
+echo Build completed