get default terminal (thanks diablosat)

src/mainwindow.py

@@ -11,7 +11,7 @@ from src.runexethread import RunExeThread
 from src.killaethread import KillAEThread
 from src.removeaethread import RemoveAEThread
 from src.utils import (
-    check_aegnux_tip_marked, get_wine_bin_path_env, 
+    check_aegnux_tip_marked, get_default_terminal, get_wine_bin_path_env, 
     get_cep_dir, get_ae_plugins_dir, get_wineprefix_dir, 
     check_aegnux_installed, mark_aegnux_tip_as_shown, get_ae_install_dir, get_aegnux_installation_dir
 )
@@ -248,10 +248,11 @@ class MainWindow(MainWindowUI):
         env['WINEPREFIX'] = get_wineprefix_dir()
         env['PATH'] = get_wine_bin_path_env('/usr/bin')
 
-        process = subprocess.Popen(
+        try:
-            ['./bin/kitty/bin/kitty', 'bash'],
+            terminal = get_default_terminal()
-            env=env
+            subprocess.Popen([terminal, "bash"], env=env)
-        )
+        except RuntimeError as e:
+            print("[CRITICAL ERROR]:", e)
     
     @Slot()
     def run_command_ctrl_q(self):

src/utils.py

@@ -148,7 +148,52 @@ def get_wine_bin_path_env(old_path: str | None):
     old_path = old_path if old_path is not None else os.getenv('PATH')
     return f'{get_wine_runner_dir().as_posix()}/bin:{old_path}'
 
+def get_default_terminal() -> str:
+    DEFAULT_ENVS = ["TERMINAL", "TERM_PROGRAM"]
+    TERMINALS = [
+        "konsole",
+        "kitty",
+        "alacritty",
+        "gnome-terminal",
+        "xfce4-terminal",
+        "terminator",
+        "lxterminal",
+        "tilix",
+        "st",
+        "mate-terminal",
+        "xterm",
+        "urxvt",
+        "deepin-terminal",
+        "sakura",
+        "tilda",
+        "guake",
+        "hyper",
+        "eterm",
+        "rxvt",
+        "lxterm",
+        "cosmic-terminal",
+    ]
 
+    candidates = (
+        shutil.which(os.environ.get(var)) for var in DEFAULT_ENVS if os.environ.get(var)
+    )
+
+    # Debian/Ubuntu
+    alt = "/etc/alternatives/x-terminal-emulator"
+    if os.path.exists(alt):
+        candidates = (shutil.which(os.readlink(alt)), *candidates)
+
+    # Popular terminals
+    candidates = (*candidates, *(shutil.which(term) for term in TERMINALS))
+
+    terminal = next((t for t in candidates if t), None)
+    if terminal:
+        return terminal
+
+    raise RuntimeError(
+        "Your terminal was not found or is not supported.\n"
+        "Install one of the following: " + ", ".join(TERMINALS)
+    )
 
 def get_aegnux_tip_marked_flag_path():
     hades = get_aegnux_installation_dir()