[HUDI-748] Adding .codecov.yml to set exclusions for code coverage reports. (#1468)

.codecov.yml

@@ -0,0 +1,44 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# For more configuration details:
+# https://docs.codecov.io/docs/codecov-yaml
+
+# Check if this file is valid by running in bash:
+# curl -X POST --data-binary @.codecov.yml https://codecov.io/validate
+
+# Ignoring Paths
+# --------------
+# which folders/files to ignore
+ignore:
+  - "hudi-common/src/main/java/org/apache/hudi/avro/model/*"
+  - "hudi-common/src/main/java/org/apache/hudi/avro/MercifulJsonConverter.java"
+  - "hudi-common/src/main/java/org/apache/hudi/common/HoodieJsonPayload"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieCleaner.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieCompactionAdminTool.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieCompactor.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieSnapshotCopier.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieWithTimelineServer.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/UpgradePayloadFromUberToApache.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/perf/TimelineServerPerf.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HDFSParquetImporter.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/HiveIncrementalPuller.java"
+  - "hudi-utilities/src/main/java/org/apache/hudi/utilities/adhoc/UpgradePayloadFromUberToApache.java"
+  - "hudi-client/src/main/java/org/apache/hudi/metrics/JmxMetricsReporter.java"
+  - "hudi-client/src/main/java/org/apache/hudi/metrics/JmxReporterServer.java"
+  - "hudi-client/src/main/java/org/apache/hudi/metrics/MetricsGraphiteReporter.java"
+  - "hudi-hadoop-mr/src/main/java/com/uber/hoodie/hadoop/HoodieInputFormat.java"
+  - "hudi-hadoop-mr/src/main/java/com/uber/hoodie/hadoop/realtime/HoodieRealtimeInputFormat.java"
+