[ARROW-13768] [R] Allow JSON to be an optional component

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.0
• Fix Version/s: 6.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18804
• Assignee: Karl Dunkle Werner
• Reporter: Karl Dunkle Werner
• Created: 26/Aug/21 15:58
• Updated: 11/Jan/23 08:35
• Resolved: 03/Sep/21 00:20

Description

JSON support requires RapidJSON, a third-party dependency that might not always be available. Particularly for offline static builds (ARROW-12981), it would be nice to allow ARROW_JSON=OFF.

Here's the relevant section of ThirdpartyToolchain.cmake:

if(ARROW_JSON)
  set(ARROW_WITH_RAPIDJSON ON)
endif()

And the relevant section of the build_arrow_static.sh script.

As Neal mentioned, there's more to do than just replacing -DARROW_JSON=ON with -DARROW_JSON=${ARROW_JSON:-ON}. "We'll have to conditionally build some of the bindings like we do with dataset and parquet, and we'll have to conditionally skip tests."

Issue Links

• links to: GitHub Pull Request #11046