Raise SkipException when no packages are found in installed_rpms

Signed-off-by: Xiangce Liu <[email protected]>

insights/parsers/installed_rpms.py

@@ -78,6 +78,7 @@
 from ..util import rsplit
 from .. import parser, get_active_lines, CommandParser
 from .rpm_vercmp import rpm_version_compare
+from insights.parsers import SkipException
 from insights.specs import Specs
 
 # This list of architectures is taken from PDC (Product Definition Center):
@@ -215,6 +216,9 @@ class InstalledRpms(CommandParser, RpmList):
     """
     A parser for working with data containing a list of installed RPM files on the system and
     related information.
+
+    Raises:
+        SkipException: When no packages are found.
     """
     def __init__(self, *args, **kwargs):
         self.errors = []
@@ -244,6 +248,8 @@ def parse_content(self, content):
                         except Exception:
                             # Both ways failed
                             self.unparsed.append(line)
+        if not self.packages:
+            raise SkipException()
         # Don't want defaultdict's behavior after parsing is complete
         self.packages = dict(self.packages)
 

insights/parsers/tests/test_installed_rpms.py

@@ -1,5 +1,6 @@
 import pytest
 from insights.parsers.installed_rpms import InstalledRpms, InstalledRpm, pad_version
+from insights.parsers import SkipException
 from insights.tests import context_wrap
 
 
@@ -80,6 +81,18 @@
 yum-security-1.1.16-21.el5.noarch
 '''.strip()
 
+ERROR_DB_NO_PKG = """
+error: rpmdb: BDB0113 Thread/process 20263/140251984590912 failed: BDB1507 Thread died in Berkeley DB library
+error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal
+error, run database recovery
+error: cannot open Packages index using db5 -  (-30973)
+error: cannot open Packages database in /var/lib/rpm
+error: rpmdb: BDB0113 Thread/process 20263/140251984590912 failed: BDB1507 Thread died in Berkeley DB library
+error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal
+error, run database recovery
+error: cannot open Packages database in /var/lib/rpm
+""".strip()
+
 ORACLEASM_RPMS = '''
 oracleasm-2.6.18-164.el5-2.0.5-1.el5.x86_64
 oracleasmlib-2.0.4-1.el5.x86_64
@@ -198,6 +211,9 @@ def test_corrupt_db():
     assert "yum-security" in rpms.packages
     assert rpms.corrupt is True
 
+    with pytest.raises(SkipException):
+        InstalledRpms(context_wrap(ERROR_DB_NO_PKG))
+
 
 def test_rpm_manifest():
     rpms = InstalledRpms(context_wrap(RPM_MANIFEST))