spark-instrumented-optimizer/sql/create-docs.sh
hyukjinkwon 60472dbfd9 [SPARK-21485][SQL][DOCS] Spark SQL documentation generation for built-in functions
## What changes were proposed in this pull request?

This generates a documentation for Spark SQL built-in functions.

One drawback is, this requires a proper build to generate built-in function list.
Once it is built, it only takes few seconds by `sql/create-docs.sh`.

Please see https://spark-test.github.io/sparksqldoc/ that I hosted to show the output documentation.

There are few more works to be done in order to make the documentation pretty, for example, separating `Arguments:` and `Examples:` but I guess this should be done within `ExpressionDescription` and `ExpressionInfo` rather than manually parsing it. I will fix these in a follow up.

This requires `pip install mkdocs` to generate HTMLs from markdown files.

## How was this patch tested?

Manually tested:

```
cd docs
jekyll build
```
,

```
cd docs
jekyll serve
```

and

```
cd sql
create-docs.sh
```

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #18702 from HyukjinKwon/SPARK-21485.
2017-07-26 09:38:51 -07:00

50 lines
1.6 KiB
Bash
Executable file

#!/bin/bash
#
# 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.
#
# Script to create SQL API docs. This requires `mkdocs` and to build
# Spark first. After running this script the html docs can be found in
# $SPARK_HOME/sql/site
set -o pipefail
set -e
FWDIR="$(cd "`dirname "${BASH_SOURCE[0]}"`"; pwd)"
SPARK_HOME="$(cd "`dirname "${BASH_SOURCE[0]}"`"/..; pwd)"
if ! hash python 2>/dev/null; then
echo "Missing python in your path, skipping SQL documentation generation."
exit 0
fi
if ! hash mkdocs 2>/dev/null; then
echo "Missing mkdocs in your path, skipping SQL documentation generation."
exit 0
fi
# Now create the markdown file
rm -fr docs
mkdir docs
echo "Generating markdown files for SQL documentation."
"$SPARK_HOME/bin/spark-submit" gen-sql-markdown.py
# Now create the HTML files
echo "Generating HTML files for SQL documentation."
mkdocs build --clean
rm -fr docs