[SPARK-2418] Custom checkpointing with an external function as parameter

.gitattributes

@@ -0,0 +1,2 @@
+*.bat text eol=crlf
+*.cmd text eol=crlf

.gitignore

@@ -1,9 +1,12 @@
 *~
+*.#*
+*#*#
 *.swp
 *.ipr
 *.iml
 *.iws
 .idea/
+.idea_modules/
 sbt/*.jar
 .settings
 .cache
@@ -15,10 +18,12 @@ out/
 third_party/libmesos.so
 third_party/libmesos.dylib
 conf/java-opts
-conf/spark-env.sh
-conf/streaming-env.sh
-conf/log4j.properties
-conf/spark-defaults.conf
+conf/*.sh
+conf/*.cmd
+conf/*.properties
+conf/*.conf
+conf/*.xml
+conf/slaves
 docs/_site
 docs/api
 target/
@@ -49,10 +54,11 @@ unit-tests.log
 /lib/
 rat-results.txt
 scalastyle.txt
-conf/*.conf
+scalastyle-output.xml
 
 # For Hive
 metastore_db/
 metastore/
 warehouse/
 TempStatsStore/
+sql/hive-thriftserver/test_warehouses

.rat-excludes

@@ -1,5 +1,6 @@
 target
 .gitignore
+.gitattributes
 .project
 .classpath
 .mima-excludes
@@ -19,15 +20,21 @@ log4j.properties
 log4j.properties.template
 metrics.properties.template
 slaves
+slaves.template
 spark-env.sh
+spark-env.cmd
 spark-env.sh.template
 log4j-defaults.properties
+bootstrap-tooltip.js
+jquery-1.11.1.min.js
 sorttable.js
+.*avsc
 .*txt
 .*json
 .*data
 .*log
 cloudpickle.py
+heapq3.py
 join.py
 SparkExprTyper.scala
 SparkILoop.scala
@@ -37,11 +44,13 @@ SparkImports.scala
 SparkJLineCompletion.scala
 SparkJLineReader.scala
 SparkMemberHandlers.scala
+SparkReplReporter.scala
 sbt
 sbt-launch-lib.bash
 plugins.sbt
 work
 .*\.q
+.*\.qv
 golden
 test.out/*
 .*iml
@@ -53,3 +62,5 @@ dist/*
 .*ipr
 .*iws
 logs
+.*scalastyle-output.xml
+.*dependency-reduced-pom.xml

CONTRIBUTING.md

@@ -0,0 +1,12 @@
+## Contributing to Spark
+
+Contributions via GitHub pull requests are gladly accepted from their original
+author. Along with any pull requests, please state that the contribution is
+your original work and that you license the work to the project under the
+project's open source license. Whether or not you state this explicitly, by
+submitting any copyrighted material via pull request, email, or other means
+you agree to license the material under the project's open source license and
+warrant that you have the legal authority to do so.
+
+Please see the [Contributing to Spark wiki page](https://cwiki.apache.org/SPARK/Contributing+to+Spark)
+for more information.