Github user Leemoonsoo commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/244#issuecomment-133769881
Here's summary of changes made by this patch.
##### Add spark-dependencies submodule
spark-dependencies maven submodule is created. It is responsible for copy
all the spark/hadoop dependencies under interpreter/spark/dep.
Spark/Hadoop dependencies in spark maven submodule is set to provided,
while they're loaded on runtime from either interpreter/spark/dep or
SPARK_HOME,HADOOP_HOME.
##### bin/interpreter.sh
bin/interpreter.sh checks if SPARK_HOME and HADOOP_HOME is defined.
If they're not defined, it adds interpreter/spark/dep into classpath.
If they're defined, it does add directories from SPARK_HOME and HADOOP_HOME
into classpath.
It also searches for spark-*.conf file under SPARK_HOME/conf and
automatically add them into ZEPPELIN_JAVA_OPTS.
##### remove use of travis-install.sh from .travis
While travis-install.sh reduces logs, it brings some problem.
When build is hanging for some reason, before travis-install.sh gets error
and printing them, travis terminates the build container. It makes very hard to
debug.
This is ready to review.
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