Github user bzz commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/930
Thanks for explaining!
So as far as I have understood, the pain point is: after `mvn clean`, on
the same repo `mvn validate` faild due to `maven-download-plugin` exception
```
iO Error: Destination
'/opt/zeppelin-master/spark-dependencies/target/../../.spark-dist/spark-1.6.1.tgz'
directory cannot be created
```
who presumably complaining about non-existant `/target/` part of it's
destination path?
and what you suggest is that we put there some different path, that is not
target-related, and what I suggest is that we better make it still pointing to
the same `.spark-dist` dir, one level above the repo root.
`${session.executionRootDirectory}/../.spark-dist` sounds as a good
solution to me.
Or another, harder way could be: if you could provide the stack trace of
the same error (running `mvn -X ...`) we could look into the implementation of
[maven-download-plugin](https://github.com/maven-download-plugin/maven-download-plugin)
and see if we could improve it to behave like `mkdir -p` in this case.
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