Merge pull request #1196 from ogayot/FR-2077

Add client-side controller and view to install third-party drivers on server installer

examples/answers-bond.yaml

@@ -56,4 +56,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
-
+Drivers:
+  install: no

examples/answers-guided-lvm.yaml

@@ -32,5 +32,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
-
-
+Drivers:
+  install: no

examples/answers-imsm.yaml

@@ -35,3 +35,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-lvm-dmcrypt.yaml

@@ -79,3 +79,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-lvm.yaml

@@ -66,3 +66,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-preserve.yaml

@@ -40,3 +40,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-raid-lvm.yaml

@@ -107,3 +107,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-raid.yaml

@@ -66,3 +66,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
+Drivers:
+  install: no

examples/answers-serial.yaml

@@ -39,5 +39,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
-
-
+Drivers:
+  install: no

examples/answers-swap.yaml

@@ -39,5 +39,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
-
-
+Drivers:
+  install: no

examples/answers.yaml

@@ -31,5 +31,5 @@ SnapList:
       classic: false
 InstallProgress:
   reboot: yes
-
-
+Drivers:
+  install: yes

subiquity/client/client.py

@@ -113,6 +113,7 @@ class SubiquityClient(TuiApplication):
         "Identity",
         "UbuntuPro",
         "SSH",
+        "Drivers",
         "SnapList",
         "Progress",
         ]

subiquity/client/controllers/__init__.py

@@ -14,6 +14,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from subiquitycore.tuicontroller import RepeatedController
+from .drivers import DriversController
 from .filesystem import FilesystemController
 from .identity import IdentityController
 from .keyboard import KeyboardController
@@ -32,6 +33,7 @@ from .zdev import ZdevController
 
 # see SubiquityClient.controllers for another list
 __all__ = [
+    'DriversController',
     'FilesystemController',
     'IdentityController',
     'KeyboardController',

subiquity/client/controllers/drivers.py

@@ -0,0 +1,69 @@
+# Copyright 2021 Canonical, Ltd.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import asyncio
+import logging
+from typing import List
+
+from subiquitycore.tuicontroller import Skip
+
+from subiquity.common.types import DriversPayload, DriversResponse
+from subiquity.client.controller import SubiquityTuiController
+from subiquity.ui.views.drivers import DriversView, DriversViewStatus
+
+log = logging.getLogger('subiquity.client.controllers.drivers')
+
+
+class DriversController(SubiquityTuiController):
+
+    endpoint_name = 'drivers'
+
+    async def make_ui(self) -> DriversView:
+        response: DriversResponse = await self.endpoint.GET()
+        if not response.drivers and response.drivers is not None:
+            raise Skip
+        return DriversView(self, response.drivers, response.install)
+
+    async def _wait_drivers(self) -> List[str]:
+        response: DriversResponse = await self.endpoint.GET(wait=True)
+        assert response.drivers is not None
+        return response.drivers
+
+    async def run_answers(self):
+        if 'install' not in self.answers:
+            return
+
+        from subiquitycore.testing.view_helpers import (
+            click,
+        )
+
+        view = self.app.ui.body
+        while view.status == DriversViewStatus.WAITING:
+            await asyncio.sleep(0.2)
+        if view.status == DriversViewStatus.NO_DRIVERS:
+            click(view.cont_btn.base_widget)
+            return
+
+        view.form.install.value = self.answers['install']
+
+        click(view.form.done_btn.base_widget)
+
+    def cancel(self) -> None:
+        self.app.prev_screen()
+
+    def done(self, install: bool) -> None:
+        log.debug("DriversController.done next_screen install=%s", install)
+        self.app.next_screen(
+                self.endpoint.POST(DriversPayload(install=install)))

subiquity/server/controllers/drivers.py

@@ -88,11 +88,6 @@ class DriversController(SubiquityController):
         log.debug("Available drivers to install: %s", self.drivers)
         if not self.drivers:
             await self.configured()
-        else:
-            # TODO Remove this once we have the GUI controller.
-            await self.POST(data=DriversPayload(
-                install=True,
-                ))
 
     async def GET(self, wait: bool = False) -> DriversResponse:
         if wait:

subiquity/ui/views/drivers.py

@@ -0,0 +1,138 @@
+# Copyright 2021 Canonical, Ltd.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+""" Module defining the view for third-party drivers installation.
+
+"""
+import asyncio
+from enum import auto, Enum
+import logging
+from typing import List, Optional
+
+from urwid import (
+    connect_signal,
+    Text,
+    )
+
+from subiquitycore.ui.buttons import ok_btn
+from subiquitycore.ui.form import (
+    Form,
+    BooleanField,
+)
+from subiquitycore.ui.spinner import Spinner
+from subiquitycore.ui.utils import screen
+from subiquitycore.view import BaseView
+
+
+log = logging.getLogger('subiquity.ui.views.drivers')
+
+
+class DriversForm(Form):
+    """ Form that shows a checkbox to configure whether we want to install the
+    available drivers or not. """
+
+    cancel_label = _("Back")
+
+    install = BooleanField(_("Install the drivers"))
+
+
+class DriversViewStatus(Enum):
+    WAITING = auto()
+    NO_DRIVERS = auto()
+    MAIN = auto()
+
+
+class DriversView(BaseView):
+
+    title = _("Third-party drivers")
+
+    form = None
+
+    def __init__(self, controller, drivers: Optional[List[str]],
+                 install: bool) -> None:
+        self.controller = controller
+
+        if drivers is None:
+            self.make_waiting(install)
+        else:
+            self.make_main(install, drivers)
+
+    def make_waiting(self, install: bool) -> None:
+        """ Change the view into a spinner and start waiting for drivers
+        asynchronously. """
+        self.spinner = Spinner(self.controller.app.aio_loop, style='dots')
+        self.spinner.start()
+        rows = [
+            Text(_("Looking for applicable third-party drivers...")),
+            Text(""),
+            self.spinner,
+            ]
+        self.cont_btn = ok_btn(
+                _("Continue"),
+                on_press=lambda sender: self.done(False))
+        self._w = screen(rows, [self.cont_btn])
+        asyncio.create_task(self._wait(install))
+        self.status = DriversViewStatus.WAITING
+
+    async def _wait(self, install: bool) -> None:
+        """ Wait until the "list" of drivers is available and change the view
+        accordingly. """
+        drivers = await self.controller._wait_drivers()
+        self.spinner.stop()
+        if drivers:
+            self.make_main(install, drivers)
+        else:
+            self.make_no_drivers()
+
+    def make_no_drivers(self) -> None:
+        """ Change the view into an information page that shows that no
+        third-party drivers are available for installation. """
+
+        rows = [Text(_("No applicable third-party drivers were found."))]
+        self.cont_btn = ok_btn(
+                _("Continue"),
+                on_press=lambda sender: self.done(False))
+        self._w = screen(rows, [self.cont_btn])
+        self.status = DriversViewStatus.NO_DRIVERS
+
+    def make_main(self, install: bool, drivers: List[str]) -> None:
+        """ Change the view to display the drivers form. """
+        self.form = DriversForm(initial={'install': install})
+
+        excerpt = _(
+            "The following third-party drivers were found. "
+            "Do you want to install them?")
+
+        def on_cancel(_: DriversForm) -> None:
+            self.cancel()
+
+        connect_signal(
+            self.form, 'submit',
+            lambda result: self.done(result.install.value))
+        connect_signal(self.form, 'cancel', on_cancel)
+
+        rows = [Text(f"* {driver}") for driver in drivers]
+        rows.append(Text(""))
+        rows.extend(self.form.as_rows())
+
+        self._w = screen(rows, self.form.buttons, excerpt=excerpt)
+        self.status = DriversViewStatus.MAIN
+
+    def done(self, install: bool) -> None:
+        log.debug("User input: %r", install)
+        self.controller.done(install)
+
+    def cancel(self) -> None:
+        self.controller.cancel()