From 40652b700bf4d45f284c3a3b0fbcd8eca3f87780 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Sat, 3 Aug 2019 03:39:10 +0200
Subject: [PATCH] dnf: clear updates-available flag when dnf update yields no
 updates

Fixes QubesOS/qubes-issues#2009
---
 misc/dnf-qubes-hooks.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/misc/dnf-qubes-hooks.py b/misc/dnf-qubes-hooks.py
index 1771851..608f6cc 100644
--- a/misc/dnf-qubes-hooks.py
+++ b/misc/dnf-qubes-hooks.py
@@ -36,6 +36,22 @@ class QubesHooks(dnf.Plugin):
         self.base = base
         self.log = logging.getLogger('dnf')
 
+    def resolved(self):
+        # in case of no action to do, transaction() hook won't be called;
+        # report updates availability here - especially when everything is up
+        # to date - to clear updates-available flag
+        if not self.base.transaction:
+            query = self.base.sack.query()
+            query = query.upgrades()
+            updates = set(query.run())
+            subprocess.call([
+                '/usr/lib/qubes/qrexec-client-vm',
+                'dom0',
+                'qubes.NotifyUpdates',
+                '/bin/echo',
+                str(len(updates))
+            ])
+
     def transaction(self):
         if LooseVersion(dnf.const.VERSION) < '2.0.0':
             config = self.read_config(self.base.conf, PLUGIN_CONF)