GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/16336
[SPARK-API-DOC][DOC][BUILD] Support skipping R/Python API docs
## What changes were proposed in this pull request?
This PR aims to support `SKIP_PYTHONDOC` and `SKIP_RDOC` for documentation
build. Currently, we can use `SKIP_SCALADOC` or `SKIP_API`. The reason
providing additional options is that the Spark documentation build uses a
number of tools to build HTML docs and API docs in Scala, Python and R.
Especially,
- Python API docs requires `sphinx`.
- R API docs requires `R` installation and `knitr` (and more others
libraries).
In other words, we cannot generate Python API docs without R installation.
Also, we cannot generate R API docs without Python `sphinx` installation. If
Spark provides `SKIP_PYTHONDOC` and `SKIP_RDOC` like `SKIP_SCALADOC`, it would
be more convenient.
## How was this patch tested?
Manual.
**Skipping Scala/Java/Python API Doc Build**
```bash
$ cd docs
$ SKIP_SCALADOC=1 SKIP_PYTHONDOC=1 jekyll build
$ ls api
DESCRIPTION R
```
**Skipping Scala/Java/R API Doc Build**
```bash
$ cd docs
$ SKIP_SCALADOC=1 SKIP_RDOC=1 jekyll build
$ ls api
python
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-18923
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16336.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16336
----
commit 2aa11d831401969a1c6052ece749ec4d56beb117
Author: Dongjoon Hyun <dongj...@apache.org>
Date: 2016-12-19T05:19:48Z
[SPARK-API-DOC][DOC][BUILD] Support skipping R/Python API docs
----
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