Merge pull request #1802 from ogayot/rich-mode-s390x
ui: have a distinct state file for rich mode over serial
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# Copyright 2023 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import json
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import pathlib
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from unittest.mock import Mock, patch
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from subiquitycore.tests import SubiTestCase
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from subiquitycore.tui import TuiApplication
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class TestTuiApplication(SubiTestCase):
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def setUp(self):
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with patch("subiquitycore.tui.Application.__init__", return_value=None):
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opts = Mock()
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opts.answers = None
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opts.dry_run = True
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self.tui = TuiApplication(opts)
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# Usually, the below are assigned by Application.__init__()
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self.tui.opts = opts
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self.tui.state_dir = self.tmp_dir()
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def test_get_initial_rich_mode_normal(self):
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self.tui.opts.run_on_serial = False
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self.assertTrue(self.tui.get_initial_rich_mode())
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# With a state file.
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-tty").open("w") as fh:
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fh.write(json.dumps(True))
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self.assertTrue(self.tui.get_initial_rich_mode())
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-tty").open("w") as fh:
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fh.write(json.dumps(False))
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self.assertFalse(self.tui.get_initial_rich_mode())
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def test_get_initial_rich_mode_serial(self):
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self.tui.opts.run_on_serial = True
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self.assertFalse(self.tui.get_initial_rich_mode())
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# With a state file.
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-serial").open("w") as fh:
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fh.write(json.dumps(True))
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self.assertTrue(self.tui.get_initial_rich_mode())
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-serial").open("w") as fh:
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fh.write(json.dumps(False))
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self.assertFalse(self.tui.get_initial_rich_mode())
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def test_get_initial_rich_mode_legacy_state_file(self):
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# Make sure if an old rich-mode state file is present, it is honored -
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# but the new format takes precedence.
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self.tui.opts.run_on_serial = True
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with (pathlib.Path(self.tui.state_dir) / "rich-mode").open("w") as fh:
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fh.write(json.dumps(True))
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self.assertTrue(self.tui.get_initial_rich_mode())
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-serial").open("w") as fh:
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fh.write(json.dumps(False))
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self.assertFalse(self.tui.get_initial_rich_mode())
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self.tui.opts.run_on_serial = False
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with (pathlib.Path(self.tui.state_dir) / "rich-mode").open("w") as fh:
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fh.write(json.dumps(False))
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self.assertFalse(self.tui.get_initial_rich_mode())
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with (pathlib.Path(self.tui.state_dir) / "rich-mode-tty").open("w") as fh:
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fh.write(json.dumps(True))
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self.assertTrue(self.tui.get_initial_rich_mode())
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@ -263,7 +263,11 @@ class TuiApplication(Application):
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urwid.util.set_encoding("ascii")
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new_palette = PALETTE_MONO
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self.rich_mode = False
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with open(self.state_path("rich-mode"), "w") as fp:
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if self.opts.run_on_serial:
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rich_mode_file = "rich-mode-serial"
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else:
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rich_mode_file = "rich-mode-tty"
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with open(self.state_path(rich_mode_file), "w") as fp:
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json.dump(self.rich_mode, fp)
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urwid.CanvasCache.clear()
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self.urwid_loop.screen.register_palette(new_palette)
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@ -286,6 +290,37 @@ class TuiApplication(Application):
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def make_screen(self, inputf=None, outputf=None):
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return make_screen(self.opts.ascii, inputf, outputf)
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def get_initial_rich_mode(self) -> bool:
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"""Return the initial value for rich-mode, either loaded from an
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exising state file or automatically determined. True means rich mode
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and False means basic mode."""
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if self.opts.run_on_serial:
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rich_mode_file = "rich-mode-serial"
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else:
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rich_mode_file = "rich-mode-tty"
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try:
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fp = open(self.state_path(rich_mode_file))
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except FileNotFoundError:
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pass
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else:
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with fp:
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return json.load(fp)
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try:
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# During the 23.10 development cycle, there was only one rich-mode
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# state file. Let's handle the scenario where we just snap
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# refresh-ed from a pre 23.10 release.
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# Once mantic is EOL, let's remove this code.
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fp = open(self.state_path("rich-mode"))
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except FileNotFoundError:
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pass
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else:
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with fp:
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return json.load(fp)
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# By default, basic on serial - rich otherwise.
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return not self.opts.run_on_serial
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def start_urwid(self, input=None, output=None):
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# This stops the tcsetpgrp call in run_command_in_foreground from
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# suspending us. See the rant there for more details.
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@ -302,14 +337,7 @@ class TuiApplication(Application):
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**self.extra_urwid_loop_args(),
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)
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extend_dec_special_charmap()
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try:
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fp = open(self.state_path("rich-mode"))
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except FileNotFoundError:
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initial_rich_mode = not self.opts.run_on_serial
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else:
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with fp:
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initial_rich_mode = json.load(fp)
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self.set_rich(initial_rich_mode)
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self.set_rich(self.get_initial_rich_mode())
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self.urwid_loop.start()
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self.select_initial_screen()
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