Check the libmodulemd version instead of modulemd

module_build_service/builder/KojiContentGenerator.py

@@ -167,13 +167,19 @@ class KojiContentGenerator(object):
     def __get_tools(self):
         """Return list of tools which are important for reproducing mbs outputs"""
 
-        tools = [u"modulemd"]
-        ret = []
-        for tool in tools:
-            version = text_type(pkg_resources.get_distribution(tool).version)
-            ret.append({u"name": tool,
-                        u"version": version})
-        return ret
+        # TODO: In libmodulemd v1.5, there'll be a property we can check instead
+        # of using RPM
+        try:
+            libmodulemd_version = subprocess.check_output(
+                ['rpm', '--queryformat', '%{VERSION}', '-q', 'libmodulemd'],
+                universal_newlines=True).strip()
+        except subprocess.CalledProcessError:
+            libmodulemd_version = 'unknown'
+
+        return [{
+            'name': 'libmodulemd',
+            'version': libmodulemd_version
+        }]
 
     def _koji_rpms_in_tag(self, tag):
         """ Return the list of koji rpms in a tag. """

tests/test_content_generator.py

@@ -74,12 +74,14 @@ class TestBuild:
 
     @patch("module_build_service.builder.KojiModuleBuilder.KojiModuleBuilder.get_session")
     @patch("subprocess.Popen")
+    @patch("subprocess.check_output", return_value='1.4')
     @patch("pkg_resources.get_distribution")
     @patch("platform.linux_distribution")
     @patch("platform.machine")
     @patch(("module_build_service.builder.KojiContentGenerator.KojiContentGenerator."
            "_koji_rpms_in_tag"))
-    def test_get_generator_json(self, rpms_in_tag, machine, distro, pkg_res, popen, get_session):
+    def test_get_generator_json(self, rpms_in_tag, machine, distro, pkg_res, coutput, popen,
+                                get_session):
         """ Test generation of content generator json """
         koji_session = MagicMock()
         koji_session.getUser.return_value = GET_USER_RV
@@ -118,12 +120,13 @@ class TestBuild:
 
     @patch("module_build_service.builder.KojiModuleBuilder.KojiModuleBuilder.get_session")
     @patch("subprocess.Popen")
+    @patch("subprocess.check_output", return_value='1.4')
     @patch("pkg_resources.get_distribution")
     @patch("platform.linux_distribution")
     @patch("platform.machine")
     @patch(("module_build_service.builder.KojiContentGenerator.KojiContentGenerator."
            "_koji_rpms_in_tag"))
-    def test_get_generator_json_no_log(self, rpms_in_tag, machine, distro, pkg_res, popen,
+    def test_get_generator_json_no_log(self, rpms_in_tag, machine, distro, pkg_res, coutput, popen,
                                        get_session):
         """ Test generation of content generator json """
         koji_session = MagicMock()

tests/test_get_generator_json_expected_output.json

@@ -11,8 +11,8 @@
         },
         "tools": [
             {
-                "name": "modulemd",
-                "version": "current-tested-version"
+                "name": "libmodulemd",
+                "version": "1.4"
             }
         ],
         "components": [

tests/test_get_generator_json_expected_output_with_log.json

@@ -11,8 +11,8 @@
         },
         "tools": [
             {
-                "name": "modulemd",
-                "version": "current-tested-version"
+                "name": "libmodulemd",
+                "version": "1.4"
             }
         ],
         "components": [