lucene/solr/solr-ref-guide

= Solr Ref Guide
// Licensed to the Apache Software Foundation (ASF) under one
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This is the source for the Solr Reference Guide.

Raw content is stored in Asciidoc (`.adoc`) formatted files in the `src/` directory.

== Prerequisites for Building
These files are processed with AsciiDoctor in 2 different ways:

* HTML version, using Jekyll:
** `Ruby` (v2.3 or higher)
** The following gems must be installed:
*** `jekyll`: v3.5, not v4.x.
Use `gem install jekyll --force --version 3.5.0` to force install of v3.5.0.
*** `jekyll-asciidoc`: v2.1 or higher; latest version (3.0.0) is fine.
Use `gem install jekyll-asciidoc` to install.
*** `slim`: v3.0 or higher; latest version (4.0.1) is fine.
Use `gem install slim` to install.
*** `tilt`: v1.0 or higher; latest version (2.0.10) is fine.
Use `gem install tilt` to install.
*** `concurrent-ruby`: v1.0 or higher; latest version (1.1.5) is fine.
Use `gem install concurrent-ruby` to install.


== Building the Guide
For details on building the ref guide, see `gradlew tasks`, the `Documentation Tasks` section.

There are currently four available targets:

* `gradlew buildSite`: Builds an HTML Site w/Jekyll and verifies the anchors+links are valid
* `gradlew documentation`: Generate all documentation
* `gradlew javadoc`: Generates Javadoc API documentation for the main source code.
* `gradlew renderJavadoc`: Generates Javadoc API documentation for the main source code. This directly invokes javadoc tool.
* `gradlew renderSiteJavadoc`: Generates Javadoc API documentation for the site (relative links).

The output of all builds will be located in `../solr-ref-guide/build`.

== Key Directories
Key directories to be aware of:

* `src` - where all human edited `*.adoc` files related to the Guide live, as well as various configuration, theme, and template files.
* `tools` - custom Java code for parsing metadata in our `src/*.adoc` files to produce some `_data/` files for site navigation purposes.
* `../solr-ref-guide/build/content` - a copy of the `src` dir generated by gradle where:
** `*.template` files are processed to replace gradle (TODO CHECK!) properties with their runtime values
** some `../solr-ref-guide/build/content/_data` files are generated by our java tools based header attributes from each of the `*.adoc` files
* `../solr-ref-guide/build/html-site` - HTML generated version of the ref guide

See the additional documentation in `src/metadocs` for more information about how to edit files, build for releases, or modifying any Jekyll templates.