Move the dependency installer script and remove build_android.sh script and update .gitignore to include shell files in the root dir.

Author: realThirdpartycookie

.gitignore

@@ -1,3 +1,6 @@
+# Ignore all shell scripts in the root directory
+/*.sh 
+
 .vs/
 .vscode/
 .idea/

README.md

@@ -49,9 +49,9 @@ To build for Android, you need a few SDKs! [Android Studio](https://developer.an
 ### If building on Ubuntu 24.04 onwards (CLI): Quick setup
 If you prefer the command line on Linux, this is a minimal setup that matches the versions this template targets.
 
-### Auto-Setup:  
+### (Optional) Auto-Setup:  
 
-Just run `bash install_android_deps.sh`. Everything will be installed for you.
+Just run `bash install_android_deps.sh` located in android/scripts/. Everything will be installed for you!
 
 ### Manual Setup:
 <details>
@@ -141,10 +141,6 @@ Ninja's [site is here](https://ninja-build.org/), but you can install it quite e
 
 ## Android Build
 
-### for automated Android Build on Linux just run `build_android.sh`
-
-
-
 ```shell
 # From the project root directory
 
@@ -163,7 +159,7 @@ cmake -B build-android ^
 # Same, but as a single line. Nicer if not using a .bat
 cmake -B build-android -G Ninja -DCMAKE_ANDROID_NDK=%ANDROID_NDK_HOME% -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=32 -DCMAKE_ANDROID_ARCH_ABI=arm64-v8a
 
-#Or for Linux:
+# Or for Linux (notice the $ instead of the %):
 cmake -B build-android -G Ninja -DCMAKE_ANDROID_NDK=$ANDROID_NDK_HOME -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=32 -DCMAKE_ANDROID_ARCH_ABI=arm64-v8a
 
 

android/scripts/install_android_deps.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+# install_android-deps.sh: Install all dependencies for Android build on Linux
+
+set -e
+
+# Prevent running the whole script with sudo/root.
+# We still use sudo for apt installs below, but the SDK should be under the user home, not /root.
+if [ "$(id -u)" -eq 0 ]; then
+  if [ -n "$SUDO_USER" ] && [ "$SUDO_USER" != "root" ]; then
+    echo "This script should not be run with sudo. Re-running as $SUDO_USER..."
+    exec sudo -u "$SUDO_USER" -H bash "$0" "$@"
+  else
+    echo "Please run this script without sudo (it will use sudo only where needed)." >&2
+    exit 1
+  fi
+fi
+
+sudo apt update
+sudo apt install -y cmake libx11-dev libxfixes-dev libegl-dev libgbm-dev libfontconfig-dev unzip curl zip ninja-build openjdk-8-jdk adb google-android-cmdline-tools-13.0-installer
+
+export ANDROID_HOME="$HOME/Android/Sdk"
+export ANDROID_SDK_ROOT="$ANDROID_HOME"
+export PATH="$ANDROID_HOME/platform-tools:$PATH"
+
+export ANDROID_NDK_HOME="$ANDROID_HOME/ndk/25.2.9519653"
+export JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64"
+export PATH="$JAVA_HOME/bin:$PATH"
+
+
+sdkmanager --sdk_root=$ANDROID_HOME \
+  "platform-tools" \
+  "platforms;android-32" \
+  "build-tools;32.0.0" \
+  "ndk;25.2.9519653"
+
+
+echo
+read -p "Add Android environment variables to your ~/.bashrc for future sessions? If not, you will need to set them manually. [y/N] " add_envs
+if [[ "$add_envs" =~ ^[Yy]$ ]]; then
+  {
+    echo ''
+    echo '# Android SDK/NDK environment variables (added by install_android_deps.sh)'
+    echo 'export ANDROID_HOME="$HOME/Android/Sdk"'
+    echo 'export ANDROID_SDK_ROOT="$ANDROID_HOME"'
+    echo 'export ANDROID_NDK_HOME="$ANDROID_HOME/ndk/25.2.9519653"'
+    echo 'export JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64"'
+    echo 'export PATH="$ANDROID_HOME/platform-tools:$JAVA_HOME/bin:$PATH"'
+  } >> "$HOME/.bashrc"
+  echo "Variables added to ~/.bashrc. Please restart your terminal or run: source ~/.bashrc"
+else
+  echo "Skipped adding environment variables to ~/.bashrc."
+fi
+