change configuration method

README.org

@@ -52,7 +52,7 @@
 
    A WSGI server like [[https://gunicorn.org/][Gunicorn]] can then be used to serve the app for example like this:
 
-   : $ gunicorn "raincloud:app()"
+   : $ gunicorn "raincloud:create_app(base_path='public', secret_key='i_am_a_key')"
 
    *Note* that currently only one worker is supported due to server side session caching.
 
@@ -66,33 +66,32 @@
         services.raincloud = {
           enable = true;
           basePath = "/var/lib/raincloud";
+          secretKey = "i_am_a_key";
         };
       }
     #+end_src
 
     All configuration options are:
 
-    | Option    | Description                       | Type  | Default value |
-    |-----------+-----------------------------------+-------+---------------|
-    | address   | Bind address of the server        | =str= | =127.0.0.1=   |
-    | port      | Port on which the server listens  | =int= | =8000=        |
-    | user      | User under which the server runs  | =str= | =raincloud=   |
-    | group     | Group under which the server runs | =str= | =raincloud=   |
-    | cloudName | Name of the raincloud             | =str= | =raincloud=   |
-    | basePath  | Base path of the raincloud        | =str= |               |
-    | secretKey | Flask secret key                  | =str= |               |
+    | Option    | Description                       | Type   | Default value |
+    |-----------+-----------------------------------+--------+---------------|
+    | address   | Bind address of the server        | =str=  | =127.0.0.1=   |
+    | port      | Port on which the server listens  | =int=  | =8000=        |
+    | user      | User under which the server runs  | =str=  | =raincloud=   |
+    | group     | Group under which the server runs | =str=  | =raincloud=   |
+    | cloudName | Name of the raincloud             | =str=  | =raincloud=   |
+    | basePath  | Base path of the raincloud        | =path= |               |
+    | secretKey | Flask secret key                  | =str=  |               |
 
 ** Configuration
 
-   /raincloud/ provides two configuration options:
+   /raincloud/ provides three configuration options which can be passed to =raincloud.create_app()=:
 
-   - CLOUD_NAME :: Name of the raincloud
-   - SECRET_KEY :: Flask secret key
-   - BASE_PATH :: Base path of the raincloud
+   - =base_path= :: Base path of the raincloud
+   - =secret_key= :: Flask secret key
+   - =cloud_name= :: Cloud name (default: =raincloud=)
 
-   Those can e.g. be stored in a =raincloud_settings.py= file.
-   The filepath can directly be passed to =raincloud.app(/path/to/raincloud_settings.py)= or stored in an environment variable =$RAINCLOUD_SETTINGS=.
-   Look at the file =raincloud/default_settings.py= to see how to define them.
+   Look at the file =run.py= to see how to set them.
 
 *** =rc.toml=
 

flake.nix

@@ -20,11 +20,6 @@
 
         cfg = config.services.raincloud;
 
-        raincloud_config = nixpkgs.legacyPackages.${system}.writeText "raincloud_config.py" ''
-          CLOUD_NAME = "${cfg.cloudName}"
-          SECRET_KEY = "${cfg.secretKey}"
-          BASE_PATH = "${cfg.basePath}"
-        '';
       in
         {
           options.services.raincloud = {
@@ -64,7 +59,7 @@
             };
 
             basePath = mkOption {
-              type = types.str;
+              type = types.path;
               description = "Base path of the raincloud";
             };
 
@@ -101,7 +96,7 @@
                 PermissionsStartOnly = true;
 
                 ExecStart = ''
-                  ${gunicorn}/bin/gunicorn "raincloud:app('${raincloud_config}')" \
+                  ${gunicorn}/bin/gunicorn "raincloud:create_app('${cfg.basePath}', '${cfg.secretKey}', '${cfg.cloudName}')" \
                     --bind=${cfg.address}:${toString cfg.port}
                 '';
               };

raincloud/__init__.py

@@ -18,24 +18,14 @@ import crypt
 import werkzeug
 
 
-def app(settings_file=None):
+def create_app(base_path, secret_key, cloud_name="raincloud"):
 
     # Create app
     app = Flask(__name__)
-
-    # Load config
-    app.config.from_object("raincloud.default_settings")
-    if settings_file:
-        app.config.from_pyfile(settings_file)
-    else:
-        app.config.from_envvar("RAINCLOUD_SETTINGS", silent=True)
-
-    if not app.config["BASE_PATH"] or app.config["BASE_PATH"] == "":
-        print("No BASE_PATH defined")
-        exit(1)
+    app.config["SECRET_KEY"] = secret_key
 
     # Create handlers
-    dh = DirectoryHandler(app.config["BASE_PATH"])
+    dh = DirectoryHandler(base_path)
     sh = SessionHandler()
 
     @app.route("/<directory>", methods=["GET", "POST"])
@@ -77,7 +67,7 @@ def app(settings_file=None):
                     else:
                         return render_template(
                             "authenticate.html",
-                            cloud_name=app.config["CLOUD_NAME"],
+                            cloud_name=cloud_name,
                             config=config,
                         )
 
@@ -87,7 +77,7 @@ def app(settings_file=None):
                     files = dh.get_files(directory)
                     return render_template(
                         "directory.html",
-                        cloud_name=app.config["CLOUD_NAME"],
+                        cloud_name=cloud_name,
                         config=config,
                         files=files,
                     )

raincloud/default_settings.py

@@ -1,3 +0,0 @@
-CLOUD_NAME = "raincloud"
-SECRET_KEY = "dev"
-BASE_PATH = "public"

run.py

@@ -3,5 +3,5 @@
 import raincloud
 
 if __name__ == "__main__":
-    app = raincloud.app()
+    app = raincloud.create_app("public", "dev")
     app.run()