[RHELC-1070] Duplicate package check for preconversion analysis

convert2rhel/actions/system_checks/duplicate_packages.py

@@ -0,0 +1,50 @@
+# Copyright(C) 2023 Red Hat, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+__metaclass__ = type
+
+import logging
+
+from convert2rhel import actions, utils
+
+
+logger = logging.getLogger(__name__)
+
+
+class Duplicate_Packages(actions.Action):
+    id = "DUPLICATE_PACKAGES"
+
+    def run(self):
+        """Ensure that there are no duplicate system packages installed."""
+        super(Duplicate_Packages, self).run()
+
+        logger.task("Prepare: Check if there are any duplicate installed packages on the system")
+
+        output, _ = utils.run_subprocess(["package-cleanup", "--dupes", "--quiet"], print_output=False)
+
+        duplicate_packages = output.split("\n")
+        duplicate_packages = filter(None, duplicate_packages)
+
+        if duplicate_packages:
+            self.set_result(
+                level="ERROR",
+                id="DUPLICATE_PACKAGES_FOUND",
+                title="Duplicate packages found on the system",
+                description="The system contains one or more packages with multiple versions.",
+                diagnosis="The following packages have multiple versions: %s." % ", ".join(duplicate_packages),
+                remediation="This error can be resolved by removing duplicate versions of the listed packages."
+                " The command 'package-cleanup' can be used to automatically remove duplicate packages"
+                " on the system.",
+            )

convert2rhel/unit_tests/actions/system_checks/duplicate_packages_test.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright(C) 2023 Red Hat, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+__metaclass__ = type
+
+
+import pytest
+
+from convert2rhel import actions, unit_tests, utils
+from convert2rhel.actions.system_checks import duplicate_packages
+from convert2rhel.unit_tests import RunSubprocessMocked
+
+
+@pytest.fixture
+def duplicate_packages_action():
+    return duplicate_packages.Duplicate_Packages()
+
+
+@pytest.mark.parametrize(
+    ("output", "expected"),
+    (
+        (
+            "package1.x86_64\npackage1.s390x\npackage2.x86_64\npackage2.ppc64le\n",
+            ["package1.x86_64", "package1.s390x", "package2.x86_64", "package2.ppc64le"],
+        ),
+        (
+            "package1.x86_64\npackage1.i686\npackage1.s390x\npackage2.x86_64\npackage2.ppc64le\n",
+            ["package1.x86_64", "package1.i686", "package1.s390x", "package2.x86_64", "package2.ppc64le"],
+        ),
+    ),
+)
+def test_duplicate_packages_error(monkeypatch, output, expected, duplicate_packages_action):
+
+    monkeypatch.setattr(utils, "run_subprocess", RunSubprocessMocked(return_value=(output, 0)))
+    duplicate_packages_action.run()
+
+    unit_tests.assert_actions_result(
+        duplicate_packages_action,
+        level="ERROR",
+        id="DUPLICATE_PACKAGES_FOUND",
+        title="Duplicate packages found on the system",
+        description="The system contains one or more packages with multiple versions.",
+        diagnosis="The following packages have multiple versions: %s." % ", ".join(expected),
+        remediation="This error can be resolved by removing duplicate versions of the listed packages."
+        " The command 'package-cleanup' can be used to automatically remove duplicate packages"
+        " on the system.",
+    )