Remove server negotiation

betty/app/__init__.py

@@ -11,7 +11,7 @@
 from multiprocessing import get_context
 from os import environ
 from pathlib import Path
-from typing import TYPE_CHECKING, Mapping, Self, Any, final
+from typing import TYPE_CHECKING, Self, Any, final
 
 import aiohttp
 from aiofiles.tempfile import TemporaryDirectory
@@ -76,7 +76,6 @@
     from types import TracebackType
     from collections.abc import AsyncIterator
     from betty.jinja2 import Environment
-    from betty.serve import Server
     from betty.url import StaticUrlGenerator, LocalizedUrlGenerator
 
 CONFIGURATION_DIRECTORY_PATH = fs.HOME_DIRECTORY_PATH / "configuration"
@@ -660,28 +659,6 @@ def event_types(self) -> set[type[EventType]]:
     def event_types(self) -> None:
         self._event_types = None
 
-    @property
-    def servers(self) -> Mapping[str, Server]:
-        """
-        The available web servers.
-        """
-        from betty import serve
-        from betty.extension.demo import DemoServer
-
-        return {
-            server.name(): server
-            for server in [
-                *(
-                    server
-                    for extension in self.extensions.flatten()
-                    if isinstance(extension, serve.ServerProvider)
-                    for server in extension.servers
-                ),
-                serve.BuiltinAppServer(self),
-                DemoServer(app=self),
-            ]
-        }
-
     @property
     def cache(self) -> Cache[Any] & FileCache:
         """

betty/cli.py

@@ -33,7 +33,7 @@
 from betty.locale import Str, DEFAULT_LOCALIZER
 from betty.logging import CliHandler
 from betty.serde.load import AssertionFailed
-from betty.serve import AppServer
+from betty.serve import BuiltinAppServer
 
 if TYPE_CHECKING:
     from PyQt6.QtWidgets import QMainWindow
@@ -330,7 +330,7 @@ async def _generate(app: App) -> None:
 @click.command(help="Serve a generated site.")
 @app_command
 async def _serve(app: App) -> None:
-    async with AppServer.get(app) as server:
+    async with BuiltinAppServer(app) as server:
         await server.show()
         while True:
             await asyncio.sleep(999)

betty/extension/nginx/__init__.py

@@ -1,6 +1,5 @@
 """Integrate Betty with `nginx <https://nginx.org/>`_."""
 
-from collections.abc import Sequence
 from pathlib import Path
 
 from click import Command
@@ -18,14 +17,12 @@
 from betty.generate import Generator, GenerationContext
 from betty.gui import GuiBuilder
 from betty.locale import Str, Localizable
-from betty.serve import ServerProvider, Server
 
 
 class Nginx(
     ConfigurableExtension[NginxConfiguration],
     UserFacingExtension,
     Generator,
-    ServerProvider,
     GuiBuilder,
     CommandProvider,
 ):
@@ -50,15 +47,6 @@ def description(cls) -> Localizable:
     def default_configuration(cls) -> NginxConfiguration:
         return NginxConfiguration()
 
-    @override
-    @property
-    def servers(self) -> Sequence[Server]:
-        from betty.extension.nginx.serve import DockerizedNginxServer
-
-        if DockerizedNginxServer.is_available():
-            return [DockerizedNginxServer(self._app)]
-        return []
-
     @override
     async def generate(self, job_context: GenerationContext) -> None:
         await generate_configuration_file(self._app)

betty/gui/serve.py

@@ -11,16 +11,16 @@
 from PyQt6.QtWidgets import QVBoxLayout, QWidget, QPushButton
 from typing_extensions import override
 
-from betty import documentation
+from betty import documentation, serve
 from betty.asyncio import wait_to_thread
 from betty.extension import demo
 from betty.gui.error import ExceptionCatcher
 from betty.gui.text import Text
 from betty.gui.window import BettyMainWindow
 from betty.locale import Str, Localizable
-from betty.serve import Server, AppServer
 
 if TYPE_CHECKING:
+    from betty.serve import Server
     from betty.app import App
 
 
@@ -128,7 +128,7 @@ class ServeProjectWindow(_ServeWindow):
 
     @override
     def _new_server(self) -> Server:
-        return AppServer.get(self._app)
+        return serve.BuiltinAppServer(self._app)
 
     @override
     @property

betty/serve.py

@@ -11,7 +11,7 @@
 from http.server import SimpleHTTPRequestHandler, HTTPServer
 from io import StringIO
 from pathlib import Path
-from typing import Sequence, Any, TYPE_CHECKING
+from typing import Any, TYPE_CHECKING
 
 from aiofiles.os import makedirs, symlink
 from aiofiles.tempfile import TemporaryDirectory, AiofilesContextManagerTempDir
@@ -153,18 +153,6 @@ def __init__(self, app: App) -> None:
         super().__init__(localizer=app.localizer)
         self._app = app
 
-    @staticmethod
-    def get(app: App) -> AppServer:
-        """
-        Get a web server for the given Betty application.
-        """
-        for server in app.servers.values():
-            if isinstance(server, AppServer):
-                return server
-        raise RuntimeError(
-            f"Cannot find a project server. This must never happen, because {BuiltinAppServer} should be the fallback."
-        )
-
     @override
     async def start(self) -> None:
         await makedirs(
@@ -173,19 +161,6 @@ async def start(self) -> None:
         await super().start()
 
 
-class ServerProvider:
-    """
-    Provide one or more web servers.
-    """
-
-    @property
-    def servers(self) -> Sequence[Server]:
-        """
-        Provide one or more web servers.
-        """
-        raise NotImplementedError(repr(self))
-
-
 class _BuiltinServerRequestHandler(SimpleHTTPRequestHandler):
     @override
     def end_headers(self) -> None: