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

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