git.scottworley.com Git - nix-env-apps/blob - apps.py

   1 import os
   2 import subprocess
   3 from typing import Any
   4
   5 import gi
   6 gi.require_version("Gtk", "4.0")
   7 from gi.repository import Gtk  # nopep8 pylint: disable=wrong-import-position
   8
   9
  10 def on_edit(_: Any) -> None:
  11     config_dir = os.path.join(
  12         os.environ.get('XDG_CONFIG_HOME', os.path.expanduser('~/.config')),
  13         'nixpkgs',
  14         'overlays')
  15     os.makedirs(config_dir, exist_ok=True)
  16     config_file = os.path.join(config_dir, 'userPackages.nix')
  17     try:
  18         with open(config_file, mode="x", encoding='utf-8') as f:
  19             f.write('''final: prev: {
  20   userPackages = final.buildEnv {
  21     name = "userPackages";
  22     paths = (with final; [
  23
  24
  25
  26     ];
  27   };
  28 }
  29 ''')
  30     except FileExistsError:
  31         pass
  32     subprocess.run(['xdg-open', config_file], check=True)
  33
  34
  35 def try_exec_terminal(terminal: str, args: list[str]) -> None:
  36     try:
  37         os.execvp(terminal, [terminal] + args)
  38     except FileNotFoundError:
  39         pass
  40
  41
  42 def on_apply(_: Any) -> None:
  43     command = ['nix-env', '-riA', 'nixos.userPackages']
  44     command_string = ' '.join(command)
  45     close_string = (
  46         ''' && read -p "SUCCESS: Press ENTER to close this window"''' +
  47         ''' || read -p "FAILURE: Press ENTER to close this window"''')
  48     # This should be a simple `xdg-terminal` invocation, but as of 2025,
  49     # xdg-terminal is extremely broken in Gnome:
  50     #   * It doesn't cause a terminal window to appear
  51     #   * It doesn't run the given command
  52     #   * It exits with status 0, so you can't even tell that it failed
  53     #   * There's no way for the user to configure their preferred terminal?
  54     # So we just try launching a whole bunch of terminals until we find one
  55     # that works
  56     if os.fork() == 0:
  57         try_exec_terminal('kitty', ['sh', '-c', command_string + close_string])
  58         try_exec_terminal(
  59             'alactritty', [
  60                 '-e', 'sh', '-c', command_string + close_string])
  61         try_exec_terminal('kgx', ['--'] + command)
  62         try_exec_terminal(
  63             'konsole', [
  64                 '-e', 'sh', '-c', command_string + close_string])
  65         try_exec_terminal('xfce4-terminal', ['--hold', '-e', command_string])
  66         try_exec_terminal('st', ['sh', '-c', command_string + close_string])
  67         try_exec_terminal(
  68             'urxvt', [
  69                 '-e', 'sh', '-c', command_string + close_string])
  70         try_exec_terminal(
  71             'xterm', [
  72                 '-e', 'sh', '-c', command_string + close_string])
  73
  74         # Don't even try gnome-terminal.  Sometimes it will start, but not run the command,
  75         # and exit with status 0 so we wouldn't even be able to tell that there was a problem.
  76         # try_exec_terminal('gnome-terminal', ['--', 'sh', '-c', command_string + close_string])
  77
  78         # As a last resort, run the command directly, without a terminal, where
  79         # the user probably can't see it.  :(
  80         os.execvp(command[0], command)
  81
  82
  83 def on_activate(app: Gtk.Application) -> None:
  84     win = Gtk.ApplicationWindow(application=app)
  85     box = Gtk.Box()
  86     box.set_orientation(Gtk.Orientation.VERTICAL)
  87     edit = Gtk.Button(label="Edit Configuration")
  88     apply = Gtk.Button(label="Apply Configuration")
  89     edit.connect('clicked', on_edit)
  90     apply.connect('clicked', on_apply)
  91     box.append(edit)
  92     box.append(apply)
  93     win.set_child(box)
  94     win.present()
  95
  96
  97 def main() -> None:
  98     app = Gtk.Application(application_id='net.chkno.nix-env-apps')
  99     app.connect('activate', on_activate)
 100     app.run(None)
 101
 102
 103 if __name__ == '__main__':
 104     main()