From e7735a0446473e0c4d74e0ceff5bb8fa269cf1ac Mon Sep 17 00:00:00 2001
From: Shihaam Abdul Rahman <shihaam@shihaam.me>
Date: Tue, 10 Mar 2026 21:15:17 +0500
Subject: [PATCH] script to build isodrive

---
 build_isodrive.sh             | 77 +++++++++++++++++++++++++++++++++++
 get_bin.sh => get_isodrive.sh |  0
 2 files changed, 77 insertions(+)
 create mode 100755 build_isodrive.sh
 rename get_bin.sh => get_isodrive.sh (100%)
 mode change 100755 => 100644

diff --git a/build_isodrive.sh b/build_isodrive.sh
new file mode 100755
index 0000000..cc3aced
--- /dev/null
+++ b/build_isodrive.sh
@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Build isodrive from source for all Android architectures
+# Requires: Android NDK (or runs via nix-shell on NixOS)
+
+SCRIPT_DIR=$(dirname "$(realpath "$0")")
+ISODRIVE_DIR="/tmp/isodrive"
+OUTPUT_DIR="$SCRIPT_DIR/app/src/main/assets/bin"
+
+# Clone isodrive source
+if [[ -d "$ISODRIVE_DIR" ]]; then
+    echo "Updating isodrive source..."
+    git -C "$ISODRIVE_DIR" pull
+else
+    echo "Cloning isodrive..."
+    git clone --depth 1 https://github.com/nitanmarcel/isodrive "$ISODRIVE_DIR"
+fi
+
+SRCS="$ISODRIVE_DIR/src/util.cpp $ISODRIVE_DIR/src/configfsisomanager.cpp $ISODRIVE_DIR/src/androidusbisomanager.cpp $ISODRIVE_DIR/src/main.cpp"
+CFLAGS="-I$ISODRIVE_DIR/src/include -static-libstdc++ -Os -s"
+
+build_all() {
+    local NDK="$1"
+    local TOOLCHAIN="$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin"
+
+    echo "Building arm64-v8a..."
+    "$TOOLCHAIN/aarch64-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/arm64-v8a/isodrive"
+
+    echo "Building armeabi-v7a..."
+    "$TOOLCHAIN/armv7a-linux-androideabi26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/armeabi-v7a/isodrive"
+
+    echo "Building x86_64..."
+    "$TOOLCHAIN/x86_64-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/x86_64/isodrive"
+
+    echo "Building x86..."
+    "$TOOLCHAIN/i686-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/x86/isodrive"
+
+    echo "Done! Built isodrive for all architectures."
+    ls -la "$OUTPUT_DIR"/*/isodrive
+}
+
+# On NixOS, prefer nix-shell (local Android SDK has /bin/bash issues)
+if command -v nix-shell &>/dev/null; then
+    echo "Using nix-shell to get Android NDK..."
+    export SRCS CFLAGS OUTPUT_DIR
+    NIXPKGS_ALLOW_UNFREE=1 nix-shell -p androidenv.androidPkgs.ndk-bundle --run '
+        SDK_ROOT=$(find /nix/store -maxdepth 1 -name "*android-sdk-ndk*" -type d 2>/dev/null | head -1)
+        NDK=$(ls -d "$SDK_ROOT/libexec/android-sdk/ndk/"* | head -1)
+        TOOLCHAIN="$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin"
+
+        echo "Using NDK: $NDK"
+
+        echo "Building arm64-v8a..."
+        "$TOOLCHAIN/aarch64-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/arm64-v8a/isodrive"
+
+        echo "Building armeabi-v7a..."
+        "$TOOLCHAIN/armv7a-linux-androideabi26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/armeabi-v7a/isodrive"
+
+        echo "Building x86_64..."
+        "$TOOLCHAIN/x86_64-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/x86_64/isodrive"
+
+        echo "Building x86..."
+        "$TOOLCHAIN/i686-linux-android26-clang++" $CFLAGS $SRCS -o "$OUTPUT_DIR/x86/isodrive"
+
+        echo "Done!"
+        ls -la "$OUTPUT_DIR"/*/isodrive
+    '
+elif [[ -n "${ANDROID_NDK_HOME:-}" ]]; then
+    build_all "$ANDROID_NDK_HOME"
+elif [[ -n "${ANDROID_NDK:-}" ]]; then
+    build_all "$ANDROID_NDK"
+else
+    echo "Error: Android NDK not found."
+    echo "Set ANDROID_NDK_HOME or ANDROID_NDK, or install nix-shell."
+    exit 1
+fi
diff --git a/get_bin.sh b/get_isodrive.sh
old mode 100755
new mode 100644
similarity index 100%
rename from get_bin.sh
rename to get_isodrive.sh