Add integrated build script

build.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+set -veuo pipefail
+
+tmp_dir="$(mktemp --tmpdir -d modulebuild.XXXXXXXXXX)"
+function cleanup() {
+    rm -fr "$tmp_dir"
+}
+trap cleanup EXIT
+
+build_mode="${1:-Release}"
+
+pushd "$(dirname "$0")"
+src_dir="$(pwd)"
+popd
+
+cd "$tmp_dir"
+
+pushd "$src_dir/riru"
+rm -fr out
+./gradlew "assemble$build_mode"
+popd
+
+pushd "$src_dir/java_module"
+# Must always be release due to R8 requirement
+./gradlew assembleRelease
+popd
+
+unzip "$src_dir/riru/out/safetynet-fix-"*.zip
+unzip "$src_dir/java_module/app/build/outputs/apk/release/app-release.apk" classes.dex
+sha256sum classes.dex | cut -d' ' -f1 | tr -d '\n' > classes.dex.sha256sum
+
+version="$(grep '^version=' module.prop  | cut -d= -f2)"
+rm -f "$src_dir/safetynet-fix-$version.zip"
+zip -r9 "$src_dir/safetynet-fix-$version.zip" .