development works in NixOS

.envrc

-# Run poetry install and activate the virtualenv
-poetry install -E chromecast -E keyring -E server
+use nix
+
+# Run poetry install if there's not a virtualenv already.
+if [[ ! -d .venv ]]; then
+    echo "No virtualenv found, installing dependencies using Poetry..."
+    poetry install -E chromecast -E keyring -E server
+fi
+
+# Activate the virtualenv
 source .venv/bin/activate
 
 watch_file pyproject.toml
 watch_file poetry.lock
 watch_file setup.py
+watch_file shell.nix
+
+unset PS1

.gitignore

+.direnv
 flatpak/flatpak_build_dir/
 flatpak/sublime-music.flatpak
 flatpak/repo

.vim/coc-settings.json

 {
-  "python.jediEnabled": false,
   "python.analysis.openFilesOnly": false,
   "python.linting.pylintEnabled": false,
   "python.linting.flake8Enabled": true,

shell.nix

+{ pkgs ? import <nixpkgs> {} }: with pkgs;
+pkgs.mkShell {
+  nativeBuildInputs = [
+    gobject-introspection
+    python3Packages.setuptools
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    flatpak
+    flatpak-builder
+    gcc
+    git
+    glib
+    gobjectIntrospection
+    gtk3
+    libnotify
+    pango
+    pkgconfig
+  ];
+
+  propagatedBuildInputs = with pkgs; [
+    cairo
+    mpv
+    poetry
+    python38
+    rnix-lsp
+  ];
+
+  shellHook = ''
+    export LD_LIBRARY_PATH=${pkgs.mpv}/lib
+    export XDG_DATA_DIRS="$GSETTINGS_SCHEMA_PATH:${pkgs.arc-theme}/share:${pkgs.arc-icon-theme}/share"
+    export SOURCE_DATE_EPOCH=315532800
+  '';
+}

sublime_music/__main__.py

@@ -39,7 +39,7 @@ def main():
 
     min_log_level = getattr(logging, args.loglevel.upper(), None)
     if not isinstance(min_log_level, int):
-        logging.error(f"Invalid log level: {args.loglevel.upper()}.")
+        print(f"Invalid log level: {args.loglevel.upper()}.")  # noqa: T001
         min_log_level = logging.WARNING
 
     logging.basicConfig(

sublime_music/adapters/subsonic/adapter.py

@@ -52,9 +52,6 @@ try:
 except Exception:
     # I really don't care what kind of exception it is, all that matters is the
     # import failed for some reason.
-    logging.warning(
-        "Unable to import NM from GLib. Detection of SSID will be disabled."
-    )
     networkmanager_imported = False
 
 REQUEST_DELAY: Optional[Tuple[float, float]] = None

sublime_music/players/chromecast.py

@@ -116,7 +116,7 @@ class ChromecastPlayer(Player):
             return
 
         if self.stop_get_chromecasts is not None:
-            self.stop_get_chromecasts()
+            self.stop_get_chromecasts.cancel()
 
         for id_, chromecast in self._chromecasts.items():
             self.player_device_change_callback(