Add Jupyverse contents

voila/app.py

@@ -95,6 +95,10 @@ class Voila(Application):
     examples = "voila example.ipynb --port 8888"
 
     flags = {
+        "jupyverse": (
+            {"Voila": {"jupyverse": True}},
+            _("Use Jupyverse backend."),
+        ),
         "debug": (
             {
                 "Voila": {"log_level": logging.DEBUG},
@@ -128,6 +132,13 @@ class Voila(Application):
         ),
     }
 
+    jupyverse = Bool(
+        False,
+        config=True,
+        help=_(
+            "Use Jupyverse backend"
+        ),
+    )
     description = Unicode(
         """voila [OPTIONS] NOTEBOOK_FILENAME
 
@@ -776,11 +787,26 @@ def start(self):
 
         settings = self.init_settings()
 
-        self.app = tornado.web.Application(**settings)
-        self.app.settings.update(self.tornado_settings)
-        handlers = self.init_handlers()
-        self.app.add_handlers(".*$", handlers)
-        self.listen()
+        if self.jupyverse:
+            try:
+                from fps_voila import run_application
+            except ImportError:
+                raise RuntimeError("Please install fps-voila in order to use the Jupyverse backend")
+
+            run_application(
+                settings,
+                self.voila_configuration,
+                self.static_paths,
+                self.base_url,
+                self.ip,
+                self.port,
+            )
+        else:
+            self.app = tornado.web.Application(**settings)
+            self.app.settings.update(self.tornado_settings)
+            handlers = self.init_handlers()
+            self.app.add_handlers(".*$", handlers)
+            self.listen()
 
     def _handle_signal_stop(self, sig, frame):
         self.log.info("Handle signal %s." % sig)

voila/jupyverse/LICENSE

@@ -0,0 +1,32 @@
+BSD License
+
+Copyright (c) 2018 Voilà contributors.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  a. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+  b. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  c. Neither the name of the authors nor the names of the contributors to
+     this package may be used to endorse or promote products
+     derived from this software without specific prior written
+     permission.
+
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.

voila/jupyverse/README.md

@@ -0,0 +1,3 @@
+# fps-voila
+
+An FPS plugin for the Voilà API.

voila/jupyverse/fps_voila/__init__.py

@@ -0,0 +1,19 @@
+from asphalt.core import run_application as _run_application
+
+from .main import RootComponent
+
+
+__version__ = "0.1.0"
+
+
+def run_application(settings, voila_configuration, static_paths, base_url, ip, port):
+    _run_application(
+        RootComponent(
+            settings,
+            voila_configuration,
+            static_paths,
+            base_url,
+            ip,
+            port,
+        )
+    )

voila/jupyverse/fps_voila/main.py

@@ -0,0 +1,92 @@
+import pkg_resources
+
+from asphalt.core import Component, ContainerComponent, Context
+from asphalt.web.fastapi import FastAPIComponent
+from jupyverse_api.app import App
+from jupyverse_api.auth import Auth
+
+from .routes import Voila
+
+
+class VoilaComponent(Component):
+    def __init__(
+            self,
+            *,
+            settings,
+            voila_configuration,
+            static_paths,
+            base_url,
+        ):
+        super().__init__()
+        self.settings = settings
+        self.voila_configuration = voila_configuration
+        self.static_paths = static_paths
+        self.base_url = base_url
+
+    async def start(
+        self,
+        ctx: Context,
+    ) -> None:
+        app = await ctx.request_resource(App)
+        auth = await ctx.request_resource(Auth)
+
+        voila = Voila(
+            app,
+            auth,
+            self.settings,
+            self.voila_configuration,
+            self.static_paths,
+            self.base_url,
+        )
+        ctx.add_resource(voila)
+
+
+class RootComponent(ContainerComponent):
+    def __init__(
+        self,
+        settings,
+        voila_configuration,
+        static_paths,
+        base_url,
+        ip,
+        port,
+    ):
+        super().__init__()
+        self.settings = settings
+        self.voila_configuration = voila_configuration
+        self.static_paths = static_paths
+        self.base_url = base_url
+        self.ip = ip
+        self.port = port
+
+    async def start(self, ctx: Context) -> None:
+        asphalt_components = {ep.name: ep for ep in pkg_resources.iter_entry_points(group="asphalt.components")}
+
+        self.add_component(
+            "fastapi",
+            asphalt_components["fastapi"].load(),
+            host=self.ip,
+            port=self.port,
+        )
+        self.add_component(
+            "voila",
+            asphalt_components["voila"].load(),
+            settings=self.settings,
+            voila_configuration=self.voila_configuration,
+            static_paths=self.static_paths,
+            base_url=self.base_url,
+        )
+        self.add_component(
+            "contents",
+            asphalt_components["contents"].load(),
+            prefix="/voila",
+        )
+        self.add_component(
+            "auth",
+            asphalt_components["noauth"].load(),
+        )
+        self.add_component(
+            "app",
+            asphalt_components["app"].load(),
+        )
+        await super().start(ctx)

voila/jupyverse/fps_voila/routes.py

@@ -0,0 +1,53 @@
+import logging
+from typing import List
+
+from fastapi import APIRouter, Request
+from fastapi.responses import HTMLResponse
+from starlette.staticfiles import PathLike, StaticFiles
+from jupyverse_api import Router
+from jupyverse_api.app import App
+from jupyverse_api.auth import Auth
+from voila.utils import get_page_config
+
+
+logger = logging.getLogger(__name__)
+
+
+class Voila(Router):
+    def __init__(
+            self,
+            app: App,
+            auth: Auth,
+            settings,
+            voila_configuration,
+            static_paths,
+            base_url,
+        ):
+        super().__init__(app=app)
+
+        router = APIRouter()
+
+        @router.get("/", response_class=HTMLResponse)
+        async def get_root(request: Request):
+            page_config = get_page_config(
+                base_url=base_url,
+                settings=settings,
+                log=logger,
+                voila_configuration=voila_configuration,
+            )
+            template = settings["voila_jinja2_env"].get_template("tree-lab.html")
+            return template.render(
+                page_config=page_config,
+            )
+
+        self.include_router(router)
+
+        self.mount(
+            "/voila/static",
+            MultiStaticFiles(directories=static_paths, check_dir=False),
+        )
+
+class MultiStaticFiles(StaticFiles):
+    def __init__(self, directories: List[PathLike] = [], **kwargs) -> None:
+        super().__init__(**kwargs)
+        self.all_directories = self.all_directories + directories

voila/jupyverse/pyproject.toml

@@ -0,0 +1,48 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "fps_voila"
+description = "An FPS plugin for the Voilà  API"
+readme = "README.md"
+requires-python = ">=3.8"
+authors = [
+    { name = "Voila Development Team" },
+]
+keywords = [
+    "Jupyter",
+    "JupyterLab",
+    "Voila",
+]
+classifiers = [
+    "Framework :: Jupyter",
+    "Framework :: Jupyter :: JupyterLab",
+    "Framework :: Jupyter :: JupyterLab :: 3",
+    "Framework :: Jupyter :: JupyterLab :: Extensions",
+    "Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt",
+    "License :: OSI Approved :: BSD License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+]
+dependencies = [
+    "fps-contents >0.2.4,<1"
+]
+dynamic = [ "version",]
+
+[project.license]
+file = "LICENSE"
+
+[project.entry-points]
+"asphalt.components"   = {voila = "fps_voila.main:VoilaComponent"}
+"jupyverse.components" = {voila = "fps_voila.main:VoilaComponent"}
+
+[project.urls]
+Homepage = "https://github.com/voila-dashboards/voila"
+
+[tool.hatch.version]
+path = "fps_voila/__init__.py"