mirror of https://github.com/sbt/sbt.git
ec35036947
`update` held a process-global lock around coursier resolution and artifact fetching whenever a logger was set OR coursier was not in fallback mode. That lock exists only to serialize coursier's interactive progress bar, which is rendered solely when no custom logger is supplied and coursier is not in fallback mode. The `loggerOpt.nonEmpty` clause therefore over-serialized the common non-interactive case (IntelliJ re-imports, CI, any non-TTY run, where sbt supplies a quiet debug-only logger), making `update` scale with the number of modules rather than the number of distinct artifacts. Narrow the predicate to `!hasCustomLogger && !fallbackMode` (Lock.progressBarActive), so resolution runs in parallel unless coursier is actually drawing its progress bar. Interactive terminals stay serialized; COURSIER_PROGRESS=false opts into parallelism there, and #5627 tracks fully parallel resolution with live progress bars. Safe: SbtCoursierCache is ConcurrentHashMap-backed, a CacheLogger is already invoked concurrently within a single resolution (parallel downloads), and the COURSIER_PROGRESS=false parallel path has been used in production for years. Fixes #5508. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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| launch | ||
| launcher-package | ||
| licenses | ||
| lm-core | ||
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| notes | ||
| project | ||
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| run | ||
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| .scalafix.conf | ||
| .scalafmt.conf | ||
| AGENTS.md | ||
| CONTRIBUTING.md | ||
| LICENSE | ||
| NOTICE | ||
| PROFILING.md | ||
| README.md | ||
| SUPPORT.md | ||
| build.sbt | ||
| sbt | ||
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README.md
sbt
sbt is a build tool for Scala, Java, and more.
For general documentation, see https://www.scala-sbt.org/.
sbt 2.x
This is the 2.x series of sbt. The source code of sbt is split across several GitHub repositories, including this one.
- sbt/io hosts
sbt.iomodule. - sbt/zinc hosts Zinc, an incremental compiler for Scala.
- sbt/sbt, this repository hosts modules that implement the build tool.
Other links
- Setup: Describes getting started with the latest binary release.
- FAQ: Explains how to get help and more.
- sbt/sbt-zero-seven: hosts sbt 0.7.7 and earlier versions
Issues and Pull Requests
Please read CONTRIBUTING carefully before opening a GitHub Issue or a pull request.
If you're looking for an idea for a contribution, issues labeled with good first issue or help wanted might be good starting points.
If you would like to ask questions about sbt, there's sbt channel on Scala Discord, but it would be good to gather questions on Stackoverflow.
license
See LICENSE.