[PATCH v3] repository: default Priority to optional when field is absent

["srinuvasan.a via isar-users" <isar-users@googlegroups.com>]

From: Srinuvasan A <srinuvasan.a@siemens.com>

Some upstream packages omit the Priority field from their binary .deb
metadata. reprepro rejects such packages with "No priority given",
aborting repository construction.

This was observed with a base-apt build that include upstream packages
such as gir1.2-javascriptcoregtk-4.1. Both base-apt and isar-apt use
the repository class. Fix repo_add_packages() to detect a missing
Priority field and fall back to "optional", matching the Debian policy
default.

Add a test recipe (test-nopriority) that explicitly strips the
Priority field before build, and a citest.py test case that exercises
the isar-apt repository path with this recipe, covering the same
failure mode as the base-apt case.

Signed-off-by: Srinuvasan A <srinuvasan.a@siemens.com>
Signed-off-by: Cedric Hombourger <cedric.hombourger@siemens.com>
---
 .../test-nopriority/test-nopriority.bb          | 15 +++++++++++++++
 meta/classes-recipe/repository.bbclass          | 15 ++++++++++++---
 testsuite/citest.py                             | 17 +++++++++++++++++
 3 files changed, 44 insertions(+), 3 deletions(-)
 create mode 100644 meta-test/recipes-app/test-nopriority/test-nopriority.bb
 mode change 100755 => 100644 testsuite/citest.py

diff --git a/meta-test/recipes-app/test-nopriority/test-nopriority.bb b/meta-test/recipes-app/test-nopriority/test-nopriority.bb
new file mode 100644
index 00000000..dfccffd1
--- /dev/null
+++ b/meta-test/recipes-app/test-nopriority/test-nopriority.bb
@@ -0,0 +1,15 @@
+# This software is a part of Isar.
+# Copyright (C) 2026 Siemens AG
+#
+# SPDX-License-Identifier: MIT
+
+# Test that a .deb without a Priority field can be added to the repository.
+# The debianize class sets Priority in the Source stanza of debian/control;
+# we strip it here so the resulting .deb has no Priority metadata, exercising
+# the prio_opt fallback in repository.bbclass.
+
+inherit dpkg-raw
+
+do_prepare_build:append() {
+    sed -i '/^Priority:/d' ${S}/debian/control
+}
diff --git a/meta/classes-recipe/repository.bbclass b/meta/classes-recipe/repository.bbclass
index a5dd8bbc..ba2803ad 100644
--- a/meta/classes-recipe/repository.bbclass
+++ b/meta/classes-recipe/repository.bbclass
@@ -61,14 +61,23 @@ repo_add_packages() {
     local dir="$1"
     local dbdir="$2"
     local codename="$3"
+    local package
+    local priority
+    local prio_opt
     shift; shift; shift
 
     if [ -n "${GNUPGHOME}" ]; then
         export GNUPGHOME="${GNUPGHOME}"
     fi
-    reprepro -b "${dir}" --dbdir "${dbdir}" -C main \
-        includedeb "${codename}" \
-        "$@"
+    for package in "$@"; do
+        prio_opt=""
+        priority=$(dpkg-deb -f "${package}" Priority 2>/dev/null || true)
+        if [ -z "${priority}" ]; then
+            prio_opt="-P optional"
+        fi
+        reprepro -b "${dir}" --dbdir "${dbdir}" -C main ${prio_opt} \
+            includedeb "${codename}" "${package}"
+    done
 }
 
 repo_del_srcpackage() {
diff --git a/testsuite/citest.py b/testsuite/citest.py
old mode 100755
new mode 100644
index b3866675..a051ce54
--- a/testsuite/citest.py
+++ b/testsuite/citest.py
@@ -131,6 +131,23 @@ class CompatTest(CIBaseTest):
         self.perform_build_test(targets, compat_arch=True)
 
 
+class RepositoryTest(CIBaseTest):
+    """
+    Test repository functionality.
+    :avocado: tags=repository,fast
+    """
+
+    def test_repository_nopriority(self):
+        """Test that packages without a Priority field can be added to the repo."""
+        targets = [
+            'mc:qemuamd64-bookworm:isar-image-ci',
+        ]
+
+        self.init()
+        self.perform_build_test(targets,
+                                image_install='test-nopriority')
+
+
 class SbuildFlavor(CIBaseTest):
     """
     Test package build with a custom sbuild chroot.
-- 
2.34.1

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