refactor: add get_config func

src/caelestia/utils/paths.py

@@ -5,6 +5,8 @@ import tempfile
 from pathlib import Path
 from typing import Any
 
+from caelestia.utils.io import warn
+
 config_dir: Path = Path(os.getenv("XDG_CONFIG_HOME", Path.home() / ".config"))
 data_dir: Path = Path(os.getenv("XDG_DATA_HOME", Path.home() / ".local/share"))
 state_dir: Path = Path(os.getenv("XDG_STATE_HOME", Path.home() / ".local/state"))
@@ -67,3 +69,13 @@ def atomic_write(path: Path, content: str) -> None:
 
 def atomic_dump(path: Path, content: dict[str, Any]) -> None:
     atomic_write(path, json.dumps(content))
+
+
+def get_config() -> dict[str, Any]:
+    try:
+        return json.loads(user_config_path.read_text())
+    except json.JSONDecodeError:
+        warn("failed to parse config, invalid JSON")
+    except FileNotFoundError:
+        pass
+    return {}

src/caelestia/utils/theme.py

@@ -15,9 +15,9 @@ from caelestia.utils.paths import (
     c_state_dir,
     config_dir,
     data_dir,
+    get_config,
     templates_dir,
     theme_dir,
-    user_config_path,
     user_templates_dir,
 )
 from caelestia.utils.scheme import get_scheme
@@ -417,10 +417,7 @@ def apply_colours(colours: dict[str, str], mode: str) -> None:
             except BlockingIOError:
                 return
 
-            try:
-                cfg = json.loads(user_config_path.read_text())["theme"]
-            except (FileNotFoundError, json.JSONDecodeError, KeyError):
-                cfg = {}
+            cfg = get_config().get("theme", {})
 
             def check(key: str) -> bool:
                 return cfg[key] if key in cfg else True

src/caelestia/utils/wallpaper.py

@@ -16,7 +16,7 @@ from caelestia.utils.material import get_colours_for_image
 from caelestia.utils.colourfulness import get_variant
 from caelestia.utils.paths import (
     compute_hash,
-    user_config_path,
+    get_config,
     wallpaper_link_path,
     wallpaper_path_path,
     wallpaper_thumbnail_path,
@@ -186,26 +186,23 @@ def set_wallpaper(wall: Path, no_smart: bool) -> None:
     apply_colours(scheme.colours, scheme.mode)
 
     # Run custom post-hook if configured
-    try:
-        cfg = json.loads(user_config_path.read_text()).get("wallpaper", {})
-        if post_hook := cfg.get("postHook"):
-            subprocess.run(
-                post_hook,
-                shell=True,
-                env={
-                    **os.environ,
-                    "WALLPAPER_PATH": str(wall),
-                    "SCHEME_NAME": scheme.name,
-                    "SCHEME_FLAVOUR": scheme.flavour,
-                    "SCHEME_MODE": scheme.mode,
-                    "SCHEME_VARIANT": scheme.variant,
-                    "SCHEME_COLOURS": json.dumps(scheme.colours),
-                    "THUMBNAIL_PATH": str(thumb),
-                },
-                stderr=subprocess.DEVNULL,
-            )
-    except (FileNotFoundError, json.JSONDecodeError):
-        pass
+    cfg = get_config().get("wallpaper", {})
+    if post_hook := cfg.get("postHook"):
+        subprocess.run(
+            post_hook,
+            shell=True,
+            env={
+                **os.environ,
+                "WALLPAPER_PATH": str(wall),
+                "SCHEME_NAME": scheme.name,
+                "SCHEME_FLAVOUR": scheme.flavour,
+                "SCHEME_MODE": scheme.mode,
+                "SCHEME_VARIANT": scheme.variant,
+                "SCHEME_COLOURS": json.dumps(scheme.colours),
+                "THUMBNAIL_PATH": str(thumb),
+            },
+            stderr=subprocess.DEVNULL,
+        )
 
 
 def set_random(args: Namespace) -> None: