add a dry-run hot key for pretending to run an install

subiquity/core.py

@@ -431,17 +431,34 @@ class Subiquity(Application):
         if key == 'f1':
             if not self.ui.right_icon.showing_something:
                 self.ui.right_icon.open_pop_up()
-        elif self.opts.dry_run and key in ['ctrl e', 'ctrl r']:
+        elif key in ['ctrl z', 'f2']:
+            self.debug_shell()
+        elif self.opts.dry_run:
+            self.unhandled_input_dry_run(key)
+        else:
+            super().unhandled_input(key)
+
+    def unhandled_input_dry_run(self, key):
+        if key == 'ctrl g':
+            import asyncio
+            from systemd import journal
+
+            async def mock_install():
+                async with self.install_lock_file.exclusive():
+                    self.install_lock_file.write_content("nowhere")
+                    journal.send(
+                        "starting install", SYSLOG_IDENTIFIER="subiquity")
+                    await asyncio.sleep(5)
+            schedule_task(mock_install())
+        elif key in ['ctrl e', 'ctrl r']:
             interrupt = key == 'ctrl e'
             try:
                 1/0
             except ZeroDivisionError:
                 self.make_apport_report(
                     ErrorReportKind.UNKNOWN, "example", interrupt=interrupt)
-        elif self.opts.dry_run and key == 'ctrl u':
+        elif key == 'ctrl u':
             1/0
-        elif key in ['ctrl z', 'f2']:
-            self.debug_shell()
         else:
             super().unhandled_input(key)
 

subiquity/ui/views/help.py

@@ -181,10 +181,11 @@ GLOBAL_KEYS = (
     )
 
 DRY_RUN_KEYS = (
-    (_('Control-X'), _('quit (dry-run only)')),
+    (_('Control-X'), _('quit')),
-    (_('Control-E'), _('generate noisy error report (dry-run only)')),
+    (_('Control-E'), _('generate noisy error report')),
-    (_('Control-R'), _('generate quiet error report (dry-run only)')),
+    (_('Control-R'), _('generate quiet error report')),
-    (_('Control-U'), _('crash the ui (dry-run only)')),
+    (_('Control-G'), _('pretend to run an install')),
+    (_('Control-U'), _('crash the ui')),
     )
 
 
@@ -195,8 +196,11 @@ class GlobalKeyStretchy(Stretchy):
         for key, text in GLOBAL_KEYS:
             rows.append(TableRow([Text(_(key)), Text(_(text))]))
         if app.opts.dry_run:
+            dro = _('(dry-run only)')
             for key, text in DRY_RUN_KEYS:
-                rows.append(TableRow([Text(_(key)), Text(_(text))]))
+                rows.append(TableRow([
+                    Text(_(key)),
+                    Text(_(text) + ' ' + dro)]))
         table = TablePile(
             rows, spacing=2, colspecs={1: ColSpec(can_shrink=True)})
         widgets = [