feat: expose more environment variables in post-hook (#107)

* feat: expose more environment variables in post-hook

* fix: formatted

README.md

@@ -191,7 +191,7 @@ All configuration options are in `~/.config/caelestia/cli.json`.
         "extraArgs": []
     },
     "wallpaper": {
-        "postHook": "echo $WALLPAPER_PATH"
+        "postHook": "echo $WALLPAPER_PATH $SCHEME_NAME $SCHEME_FLAVOUR $SCHEME_MODE $SCHEME_VARIANT $SCHEME_COLOURS"
     },
     "theme": {
         "enableTerm": true,

src/caelestia/utils/wallpaper.py

@@ -192,7 +192,16 @@ def set_wallpaper(wall: Path, no_smart: bool) -> None:
             subprocess.run(
                 post_hook,
                 shell=True,
-                env={**os.environ, "WALLPAPER_PATH": str(wall)},
+                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):