Add YAML config file support

src/codechecker_config.bzl

@@ -12,12 +12,33 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+def _get_config_file_name(ctx):
+    """
+    Returns the name of the config file to be used, with correct extension
+    If no config file is given, we write the configuration options into a 
+    config.json file. 
+    """
+    if ctx.attr.config:
+        if type(ctx.attr.config) == "list":
+            config_info = ctx.attr.config[0][CodeCheckerConfigInfo]
+        else:
+            config_info = ctx.attr.config[CodeCheckerConfigInfo]
+        if config_info.config_file:
+            config_file = config_info.config_file.files.to_list()[0]
+            config_file_name = ctx.attr.name + \
+                                "/config." + config_file.extension
+            return config_file_name
+    config_file_name = ctx.attr.name + "/config.json"
+    return config_file_name
+
 def get_config_file(ctx):
     """
     Returns (config_file, environment_variables)
     config_file is a file object that is readable during Codechecker execution
     """
-    config_file_name = ctx.attr.name + "/config.json"
+
+    # Declare config file to use during analysis
+    config_file_name = _get_config_file_name(ctx)
     ctx_config_file = ctx.actions.declare_file(config_file_name)
 
     # Create CodeChecker JSON config file and env vars

test/unit/config/test_config.py

@@ -57,8 +57,7 @@ def test_codechecker_yaml(self):
             "codechecker_yaml",
             "config.yaml"
         )
-        self.assertFalse(os.path.exists(copied_config)) # TODO: Set to True
-        # Before the patch config.yaml won't be generated
+        self.assertTrue(os.path.exists(copied_config))
 
     def test_codechecker_test_json(self):
         """Test: bazel test //test/unit/config:codechecker_test_json"""
@@ -82,15 +81,13 @@ def test_codechecker_test_yaml(self):
             "bazel test //test/unit/config:codechecker_test_yaml"
         )
         # Should not find the division by zero bug
-        self.assertEqual(ret, 3) # TODO: Set to 0, 
-        # based on the config file won't find the division by zero bug
+        self.assertEqual(ret, 0)
         copied_config = os.path.join(
             self.BAZEL_BIN_DIR, # type: ignore
             "codechecker_test_yaml",
             "config.yaml"
         )
-        self.assertFalse(os.path.exists(copied_config)) # TODO: Set to True
-        # Before the patch config.yaml won't be generated
+        self.assertTrue(os.path.exists(copied_config))
 
     def test_per_file_test_json(self):
         """Test: bazel test //test/unit/config:per_file_test_json"""