[ORC-1810] Offline build support

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Component/s: C++
• Assignee: Hao Zou
• Reporter: Kouhei Sutou
• Created: 09/Dec/24 20:52
• Updated: 10/Jan/25 07:37
• Resolved: 03/Jan/25 16:42

Description

The C++ implementation always downloads orc-fromat by ExternalProject_Add: https://github.com/apache/orc/blob/48118e0493d94a7f83ddb3814de22462b07396e2/cmake_modules/ThirdpartyToolchain.cmake#L139-L147

Could you provide a way to avoid it? For example, we may be able to vendor orc-format to orc-X.Y.Z.tar.gz source archive.

Background: Apache Arrow supports offline build: https://arrow.apache.org/docs/developers/cpp/building.html#offline-builds
It uses pre-downloaded archives instead of downloading archives in build phase. We can download orc-X.Y.Z.tar.gz and use it in Apache Arrow build. But we can't use ORC with our offline build support. Because ORC always downloads orc-format in build phase.

Issue Links

• links to: GitHub Pull Request #2094