Add new package manager and enhance master setup with Xanmod kernel

github_package_update.bash

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Function to check and pull the latest version of a package from GitHub
+check_and_update_package() {
+  local repo_owner="$1"
+  local repo_name="$2"
+  local local_path="$3"
+  
+  echo "Checking for updates for $repo_name..."
+  
+  # Get the latest release info from GitHub API
+  latest_release=$(curl -s "https://api.github.com/repos/$repo_owner/$repo_name/releases/latest")
+  latest_version=$(echo "$latest_release" | grep -oP '(?<="tag_name": ")([^"]+)')
+  
+  if [ -z "$latest_version" ]; then
+    echo "Failed to fetch latest version for $repo_name."
+    return 1
+  fi
+  
+  # Check if the package is already installed at the local path
+  if [ -d "$local_path" ]; then
+    # Check if the installed version matches the latest
+    current_version=$(cd "$local_path" && git describe --tags 2>/dev/null || echo 'unknown')
+    if [ "$current_version" == "$latest_version" ]; then
+      echo "$repo_name is already up to date (version: $current_version)."
+      return 0
+    else
+      echo "Updating $repo_name from version $current_version to $latest_version..."
+      cd "$local_path" && git pull origin "$latest_version"
+    fi
+  else
+    echo "Installing $repo_name version $latest_version..."
+    git clone "https://github.com/$repo_owner/$repo_name.git" "$local_path"
+    cd "$local_path" && git checkout "$latest_version"
+  fi
+  
+  if [ $? -eq 0 ]; then
+    echo "$repo_name has been updated to version $latest_version."
+  else
+    echo "Failed to update $repo_name."
+    return 1
+  fi
+}
+
+# Example usage:
+# check_and_update_package 'owner' 'repository' '/path/to/install'