mirror of https://github.com/sbt/sbt.git
22 lines
1.1 KiB
Markdown
22 lines
1.1 KiB
Markdown
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### `update` resolves modules in parallel
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Dependency resolution (`update`) no longer holds a process-global lock while
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coursier is *not* rendering its interactive progress bar -- that is, whenever a
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custom `csrLogger` is set, or coursier is in fallback display mode (the default
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under IntelliJ, CI, and any non-TTY environment, or with `COURSIER_PROGRESS=false`).
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Previously the lock was taken even for sbt's quiet default logger, so `update`
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processed one module at a time and its duration grew with the number of modules
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rather than the number of distinct artifacts. Large multi-module builds and
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IDE/CI re-imports could spend minutes serializing resolution.
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The lock is still held while coursier draws its live per-module progress bars in
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an interactive terminal, because that renderer is not safe to drive concurrently;
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to parallelize there as well, run with `COURSIER_PROGRESS=false`. Fully parallel
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resolution *with* live progress bars is tracked by [#5627][i5627].
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This addresses [#5508][i5508].
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[i5508]: https://github.com/sbt/sbt/issues/5508
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[i5627]: https://github.com/sbt/sbt/issues/5627
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