**Problem**
sbt bspConfig writes the absolute path of the current Java binary into .bsp/sbt.json. When the user switches Java versions (via sdkman, cs java, etc.) or removes that JDK, the IDE fails to start the sbt BSP server because the hardcoded path is stale or gone.
**Solution**
When an sbt launcher script is available (via `sbt.script` system property or PATH lookup), generate:
"argv": ["/path/to/sbt", "bsp"]
**Problem**
Coursier graph.Conflict -> DependencyTree relocation can loop forever when
Maven/Gradle relocation metadata forms a cycle (sbt-site 1.4.1).
**Solution**
Detect relocation cycles with the same step logic as Coursier, skip Conflict
for affected configs, log once per update.
Generated-by: Claude
**Problem**
set every silently discards scope axes the user provides. Running:
set every Test / sources := Nil
empties sources in **all** scopes including Compile, not just Test. This happens because rescope in SettingCompletions.setAll strips the scope and forces Global.
**Solution**
Changed rescope to keep the user's config/task/extra axes and only wildcard the project axis. When no scope is given, behavior is unchanged - all axes match everything as before.
**Problem**
When scalaVersion is Scala 3.x and a dependency brings a newer
scala3-library_3, sbt did not report an eviction error or warning.
The compiler could be older than the standard library on the
classpath, breaking compile-time alignment (e.g. scala/scala3#25406).
**Solution**
- In Compiler.scala, add an else if ScalaArtifacts.isScala3(sv) branch
in scalaInstanceConfigFromUpdate that finds scala3-library_* on the
Compile report and, if scalaVersion < that revision, fails (or warns
when allowUnsafeScalaLibUpgrade := true) with the same pattern as
the existing Scala 2.13 check (PR 7480). Message uses compile-time
alignment wording and "See evicted to know why ... was upgraded from".
- Set allowUnsafeScalaLibUpgrade := true on b3 in stdlib-unfreeze so
existing b3/run and b3/checkScala still pass.
- Add scripted tests: stdlib-unfreeze-scala3-eviction (expect compile
to fail) and stdlib-unfreeze-scala3-warn (expect success with warning).
Closes#6694
**Problem**
When scalaVersion is Scala 3.x and a dependency brings a newer
scala3-library_3, sbt did not report an eviction error or warning.
The compiler could be older than the standard library on the
classpath, breaking compile-time alignment (e.g. scala/scala3#25406).
**Solution**
- In Compiler.scala, add an else if ScalaArtifacts.isScala3(sv) branch
in scalaInstanceConfigFromUpdate that finds scala3-library_* on the
Compile report and, if scalaVersion < that revision, fails (or warns
when allowUnsafeScalaLibUpgrade := true) with the same pattern as
the existing Scala 2.13 check (PR 7480). Message uses compile-time
alignment wording and "See evicted to know why ... was upgraded from".
- Set allowUnsafeScalaLibUpgrade := true on b3 in stdlib-unfreeze so
existing b3/run and b3/checkScala still pass.
- Add scripted tests: stdlib-unfreeze-scala3-eviction (expect compile
to fail) and stdlib-unfreeze-scala3-warn (expect success with warning).
Closes#6694
**Problem**
Scripts with scalaVersion 3.x in /*** */ and a shebang fail: -Xscript is
ignored by Scala 3, and the shebang line causes "Expected a toplevel
definition".
**Solution**
- Strip shebang when copying the script so the compiler never sees it.
- For Scala 3 only: do not add -Xscript; generate Main.scala wrapping the
script body in object Main { def main(...) = { ... } }; use it as the
single source and set run/mainClass to Main.
- For Scala 2: keep existing behavior (shebang stripped, -Xscript + script
base name).
- Use Def.uncached and ScalaArtifacts.isScala3(scalaVersion.value) so
embedded scalaVersion from /*** */ is respected.
**Problem**
The tests/nested-testquick scripted test only verified test and testQuick but did not exercise testOnly against individual test
classes, nor did it verify that a failing nested test class is detected.
**Solution**
- Added GoodCalcTest.java (with a Nested inner class) as a passing test.
- Added changed/BadCalcTest.java (with a Nested`inner class) as a deliberately failing test.
**Problem**
When sbtn (native thin client) can't find a running sbt server, it prompts
to start one. There was no way to opt out of server auto-start from the
client side, which is needed for CI environments and scripting (sbt/sbt#7079).
**Solution**
Reuse the existing sbt.server.autostart system property in NetworkClient
to control whether sbtn should attempt to start a server. When no server is
running and sbt.server.autostart=false, sbtn exits with an error instead
of prompting.
Support setting this property via:
- sbtn --no-server compile (sets sbt.server.autostart=false)
- sbtn --autostart=false compile (new flag following sbt conventions)
- sbtn -Dsbt.server.autostart=false compile (direct system property)
- sbt --autostart=false compile (bash runner and sbtw)
This follows sbt's naming conventions for properties/options: positive
property names with =false opt-out (like --color=false, --supershell=false).
Fixessbt/sbt#7079
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
**Problem**
The projectDescriptors key in sbt.Keys leaked Ivy classes
(ModuleRevisionId, ModuleDescriptor) through its API surface.
No external plugins use this key.
**Solution**
Remove projectDescriptors entirely. IvyDependencyPlugin now uses
its internal depMap method directly for projectResolverTask and
coursierExtraProjectsTask, eliminating unnecessary Any casts.
The descriptors field is also removed from GlobalPluginData.
Fixes sbt#8865
**Problem**
When the remote cache server (e.g. bazel-remote using S3 for storage) reports an AC (Action Cache)
hit but the underlying CAS (Content Addressable Storage) blob is missing or
corrupt, ActionCache.cache propagates the resulting exception (typically
java.io.FileNotFoundException) directly to the SBT task engine process with no interception of the propogated error.
This causes a build failure instead of a graceful cache miss.
The three unguarded call sites are:
1. organicTask - syncBlobs after a successful put only caught NoSuchFileException,
missing FileNotFoundException and other IO errors.
2. getWithFailure / readFromSymlink fast-path - syncBlobs inside flatMap with no
exception handling.
3. getWithFailure main branch - both syncBlobs calls and the subsequent IO.read
were completely unguarded.
**Solution**
Guard all three call sites with NonFatal catches:
- Cache read failures (getWithFailure) return Left(None) which the caller
interprets as a cache miss, triggering organic recomputation.
- Cache write failures (organicTask) are demoted to a debug-level log; the task
result that was already computed is returned successfully.
Two regression tests are added to ActionCacheTest:
1. Tests the main getWithFailure branch using the default relative-path converter.
2. Tests the readFromSymlink fast-path using an absolute-path converter so the
symlink created on the first run is found by Files.isSymbolicLink on the second.
Running sbt new scala/toolkit.local with the template slug on the command line throws:
The same templates work when chosen from the interactive menu (sbt new with no args). The code path for “arguments provided” only consulted external template resolvers (e.g. Giter8), which do not handle these built-in local templates.
Step 5 of #7640 — removes the compile-time dependency on lm-ivy from main/ by creating a standalone sbt-ivy plugin module.
- Create new sbt-ivy/ subproject with IvyDependencyPlugin AutoPlugin that provides all Ivy-specific functionality (ivySbt, ivyModule, ivyConfiguration, publisher, projectDescriptors, deliver/makeIvyXml)
- Move IvyXml.scala from main/ to sbt-ivy/
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