feat(kiauh): add helper methods to check for installed packages

Signed-off-by: Dominik Willner <th33xitus@gmail.com>

kiauh/utils/common.py

@@ -10,7 +10,11 @@
 # ======================================================================= #
 
 from datetime import datetime
-from typing import Dict, Literal
+from typing import Dict, Literal, List
+
+from kiauh.utils.constants import COLOR_CYAN, RESET_FORMAT
+from kiauh.utils.logger import Logger
+from kiauh.utils.system_utils import check_package_install, install_system_packages
 
 
 def get_current_date() -> Dict[Literal["date", "time"], str]:
@@ -23,3 +27,19 @@ def get_current_date() -> Dict[Literal["date", "time"], str]:
     time: str = now.strftime("%H-%M-%S")
 
     return {"date": date, "time": time}
+
+
+def check_install_dependencies(deps: List[str]) -> None:
+    """
+    Common helper method to check if dependencies are installed
+    and if not, install them automatically |
+    :param deps: List of strings of package names to check if installed
+    :return: None
+    """
+    requirements = check_package_install(deps)
+    if requirements:
+        Logger.print_status("Installing dependencies ...")
+        Logger.print_info("The following packages need installation:")
+        for _ in requirements:
+            print(f"{COLOR_CYAN}● {_}{RESET_FORMAT}")
+        install_system_packages(requirements)

kiauh/utils/system_utils.py

@@ -169,6 +169,26 @@ def update_system_package_lists(silent: bool, rls_info_change=False) -> None:
         kill(f"Error updating system package list:\n{e.stderr.decode()}")
 
 
+def check_package_install(packages: List[str]) -> List[str]:
+    """
+    Checks the system for installed packages |
+    :param packages: List of strings of package names
+    :return: A list containing the names of packages that are not installed
+    """
+    not_installed = []
+    for package in packages:
+        command = ["dpkg-query", "f'${Status}'", "--show", package]
+        result = subprocess.run(
+            command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, text=True
+        )
+        if "installed" not in result.stdout.strip("'").split():
+            not_installed.append(package)
+        else:
+            Logger.print_ok(f"{package} already installed.")
+
+    return not_installed
+
+
 def install_system_packages(packages: List[str]) -> None:
     """
     Installs a list of system packages |