move reflex dir

reflex/config.py

@@ -283,6 +283,9 @@ class EnvironmentVariables:
     # Whether to use seperate threads to compile the frontend and how many. Defaults to `min(32, os.cpu_count() + 4)`.
     REFLEX_COMPILE_THREADS: Optional[int] = None
 
+    # The directory to store reflex dependencies.
+    REFLEX_DIR: Path = Path(constants.Reflex.DIR)
+
     def __init__(self):
         """Initialize the environment variables."""
         type_hints = get_type_hints(type(self))

reflex/constants/base.py

@@ -66,21 +66,13 @@ class Reflex(SimpleNamespace):
 
     # Files and directories used to init a new project.
     # The directory to store reflex dependencies.
-    # Get directory value from enviroment variables if it exists.
-    _dir = os.environ.get("REFLEX_DIR", "")
+    # on windows, we use C:/Users/<username>/AppData/Local/reflex.
+    # on macOS, we use ~/Library/Application Support/reflex.
+    # on linux, we use ~/.local/share/reflex.
+    # If user sets REFLEX_DIR envroment variable use that instead.
+    DIR = PlatformDirs(MODULE_NAME, False).user_data_path
 
-    DIR = Path(
-        _dir
-        or (
-            # on windows, we use C:/Users/<username>/AppData/Local/reflex.
-            # on macOS, we use ~/Library/Application Support/reflex.
-            # on linux, we use ~/.local/share/reflex.
-            # If user sets REFLEX_DIR envroment variable use that instead.
-            PlatformDirs(MODULE_NAME, False).user_data_dir
-        )
-    )
     # The root directory of the reflex library.
-
     ROOT_DIR = Path(__file__).parents[2]
 
     RELEASES_URL = f"https://api.github.com/repos/reflex-dev/templates/releases"

reflex/constants/installer.py

@@ -3,9 +3,11 @@
 from __future__ import annotations
 
 import platform
+from pathlib import Path
 from types import SimpleNamespace
+from typing import Any, Callable, Generic, Type, TypeVar
 
-from .base import IS_WINDOWS, Reflex
+from .base import IS_WINDOWS
 
 
 def get_fnm_name() -> str | None:
@@ -30,18 +32,43 @@ def get_fnm_name() -> str | None:
     return None
 
 
+T = TypeVar("T")
+V = TypeVar("V")
+
+
+class classproperty(Generic[T, V]):
+    """A class property decorator."""
+
+    def __init__(self, getter: Callable[[Type[T]], V]) -> None:
+        """Initialize the class property.
+
+        Args:
+            getter: The getter function.
+        """
+        self.getter = getattr(getter, "__func__", getter)
+
+    def __get__(self, instance: Any, owner: Type[T]) -> V:
+        """Get the value of the class property.
+
+        Args:
+            instance: The instance of the class.
+            owner: The class itself.
+
+        Returns:
+            The value of the class property.
+        """
+        return self.getter(owner)
+
+
 # Bun config.
 class Bun(SimpleNamespace):
     """Bun constants."""
 
     # The Bun version.
     VERSION = "1.1.29"
+
     # Min Bun Version
     MIN_VERSION = "0.7.0"
-    # The directory to store the bun.
-    ROOT_PATH = Reflex.DIR / "bun"
-    # Default bun path.
-    DEFAULT_PATH = ROOT_PATH / "bin" / ("bun" if not IS_WINDOWS else "bun.exe")
 
     # URL to bun install script.
     INSTALL_URL = "https://raw.githubusercontent.com/reflex-dev/reflex/main/scripts/bun_install.sh"
@@ -50,9 +77,24 @@ class Bun(SimpleNamespace):
     WINDOWS_INSTALL_URL = (
         "https://raw.githubusercontent.com/reflex-dev/reflex/main/scripts/install.ps1"
     )
+
     # Path of the bunfig file
     CONFIG_PATH = "bunfig.toml"
 
+    @classproperty
+    @classmethod
+    def ROOT_PATH(cls):
+        """The directory to store the bun."""
+        from reflex.config import environment
+
+        return environment.REFLEX_DIR / "bun"
+
+    @classproperty
+    @classmethod
+    def DEFAULT_PATH(cls):
+        """Default bun path."""
+        return cls.ROOT_PATH / "bin" / ("bun" if not IS_WINDOWS else "bun.exe")
+
 
 # FNM config.
 class Fnm(SimpleNamespace):
@@ -60,17 +102,28 @@ class Fnm(SimpleNamespace):
 
     # The FNM version.
     VERSION = "1.35.1"
-    # The directory to store fnm.
-    DIR = Reflex.DIR / "fnm"
+
     FILENAME = get_fnm_name()
-    # The fnm executable binary.
-    EXE = DIR / ("fnm.exe" if IS_WINDOWS else "fnm")
 
     # The URL to the fnm release binary
     INSTALL_URL = (
         f"https://github.com/Schniz/fnm/releases/download/v{VERSION}/{FILENAME}.zip"
     )
 
+    @classproperty
+    @classmethod
+    def DIR(cls) -> Path:
+        """The directory to store fnm."""
+        from reflex.config import environment
+
+        return environment.REFLEX_DIR / "fnm"
+
+    @classproperty
+    @classmethod
+    def EXE(cls):
+        """The fnm executable binary."""
+        return cls.DIR / ("fnm.exe" if IS_WINDOWS else "fnm")
+
 
 # Node / NPM config
 class Node(SimpleNamespace):
@@ -81,20 +134,29 @@ class Node(SimpleNamespace):
     # The minimum required node version.
     MIN_VERSION = "18.17.0"
 
-    # The node bin path.
-    BIN_PATH = (
-        Fnm.DIR
-        / "node-versions"
-        / f"v{VERSION}"
-        / "installation"
-        / ("bin" if not IS_WINDOWS else "")
-    )
+    @classproperty
+    @classmethod
+    def BIN_PATH(cls):
+        """The node bin path."""
+        return (
+            Fnm.DIR
+            / "node-versions"
+            / f"v{cls.VERSION}"
+            / "installation"
+            / ("bin" if not IS_WINDOWS else "")
+        )
 
-    # The default path where node is installed.
-    PATH = BIN_PATH / ("node.exe" if IS_WINDOWS else "node")
+    @classproperty
+    @classmethod
+    def PATH(cls):
+        """The default path where node is installed."""
+        return cls.BIN_PATH / ("node.exe" if IS_WINDOWS else "node")
 
-    # The default path where npm is installed.
-    NPM_PATH = BIN_PATH / "npm"
+    @classproperty
+    @classmethod
+    def NPM_PATH(cls):
+        """The default path where npm is installed."""
+        return cls.BIN_PATH / "npm"
 
 
 class PackageJson(SimpleNamespace):

reflex/utils/prerequisites.py

@@ -991,7 +991,7 @@ def needs_reinit(frontend: bool = True) -> bool:
         return False
 
     # Make sure the .reflex directory exists.
-    if not constants.Reflex.DIR.exists():
+    if not environment.REFLEX_DIR.exists():
         return True
 
     # Make sure the .web directory exists in frontend mode.
@@ -1096,7 +1096,7 @@ def ensure_reflex_installation_id() -> Optional[int]:
     """
     try:
         initialize_reflex_user_directory()
-        installation_id_file = constants.Reflex.DIR / "installation_id"
+        installation_id_file = environment.REFLEX_DIR / "installation_id"
 
         installation_id = None
         if installation_id_file.exists():
@@ -1121,7 +1121,7 @@ def ensure_reflex_installation_id() -> Optional[int]:
 def initialize_reflex_user_directory():
     """Initialize the reflex user directory."""
     # Create the reflex directory.
-    path_ops.mkdir(constants.Reflex.DIR)
+    path_ops.mkdir(environment.REFLEX_DIR)
 
 
 def initialize_frontend_dependencies():

tests/units/test_config.py

@@ -5,6 +5,7 @@ import pytest
 
 import reflex as rx
 import reflex.config
+from reflex.config import environment
 from reflex.constants import Endpoint
 
 
@@ -178,7 +179,7 @@ def test_replace_defaults(
 
 
 def reflex_dir_constant():
-    return rx.constants.Reflex.DIR
+    return environment.REFLEX_DIR
 
 
 def test_reflex_dir_env_var(monkeypatch, tmp_path):