[ https://issues.apache.org/jira/browse/ARROW-3165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou updated ARROW-3165: ---------------------------------- Description: Downloading and building third-party libraries may be consuming a significant chunk of time in our CI chain. It would be nice to cache third-party build artifacts accross CI builds, to save time. Unfortunately I ran accross weird issues (especially on Windows / AppVeyor) when trying to implement this. I don't plan to waste any more time on this soon. Attempt at [https://github.com/apache/arrow/compare/master...pitrou:externals_dir] Edit: it seems I finally found the issue on Windows: ninja is case-sensitive, you must be careful to canonicalize paths yourself in custom CMake commands such as in ExternalProject_Add... was: Downloading and building third-party libraries may be consuming a significant chunk of time in our CI chain. It would be nice to cache third-party build artifacts accross CI builds, to save time. Unfortunately I ran accross weird issues (especially on Windows / AppVeyor) when trying to implement this. I don't plan to waste any more time on this soon. Attempt at https://github.com/apache/arrow/compare/master...pitrou:externals_dir > [CI] Cache externals accross AppVeyor builds > -------------------------------------------- > > Key: ARROW-3165 > URL: https://issues.apache.org/jira/browse/ARROW-3165 > Project: Apache Arrow > Issue Type: Improvement > Components: C++, Continuous Integration > Reporter: Antoine Pitrou > Priority: Major > > Downloading and building third-party libraries may be consuming a significant > chunk of time in our CI chain. It would be nice to cache third-party build > artifacts accross CI builds, to save time. > Unfortunately I ran accross weird issues (especially on Windows / AppVeyor) > when trying to implement this. I don't plan to waste any more time on this > soon. Attempt at > [https://github.com/apache/arrow/compare/master...pitrou:externals_dir] > Edit: it seems I finally found the issue on Windows: ninja is case-sensitive, > you must be careful to canonicalize paths yourself in custom CMake commands > such as in ExternalProject_Add... -- This message was sent by Atlassian JIRA (v7.6.3#76005)