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Posted to dev@arrow.apache.org by "Mark Hildreth (Jira)" <ji...@apache.org> on 2020/04/30 14:46:00 UTC

[jira] [Created] (ARROW-8648) [Rust] Optimize Rust CI Build Times

Mark Hildreth created ARROW-8648:
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             Summary: [Rust] Optimize Rust CI Build Times
                 Key: ARROW-8648
                 URL: https://issues.apache.org/jira/browse/ARROW-8648
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Mark Hildreth


In the Rust CI workflows (rust_build.sh, rust_test.sh), there are some build options used that are at odds with each other, resulting in multiple redundant builds where a smaller number could do the same job. The following tweaks, at minimal, could reduce this, speeding up build times:
 * Ensure that RUSTFLAGS="-D warnings" is used for all cargo commands. Currently, it's only used for a single command (the {{build --all-targets}} in {{rust_build.sh}}). Subsuquent runs of cargo will ignore this first build, since RUSTFLAGS has changed.
 * Don't run examples in release mode, as that would force a new (and slower) rebuild, when the examples have already been built in debug mode.



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