Add hidden sbt key for extra JUnit template library dependencies #SCL-25373 - #148
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Vasil Vasilev (vasilmkd) merged 4 commits intoApr 29, 2026
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…-25373 Introduce intellijExtraJUnitTemplateLibraryDependencies, a hidden settingKey[Seq[ModuleID]] whose modules are resolved through a dedicated hidden Ivy configuration and appended only to the JUnit Run Configuration template classpath. The sbt Test classpath is intentionally unaffected, so libraries needed at test runtime when launched from the IDE can be declared without polluting in-sbt test runs. Covered by a new integration test that asserts the resolved jar appears in the generated junit_template_argfile.txt and is absent from Test/fullClasspath. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
actions/checkout v4 -> v6 actions/setup-java v4 -> v5 coursier/cache-action v6 -> v8 sbt/setup-sbt is already at the latest major (v1). Existing inputs are unchanged across these majors, so no further configuration edits are needed. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
sbt-ci-release 1.11.1 -> 1.11.2 sbt-ide-settings 1.1.2 -> 1.1.4 Verified via sbt reload. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
1.11.5 -> 1.12.10. Verified via sbt reload. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Vasil Vasilev (vasilmkd)
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April 29, 2026 12:09
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Summary
Introduces a new hidden setting key,
intellijExtraJUnitTemplateLibraryDependencies: SettingKey[Seq[ModuleID]], that lets a consuming build add library dependencies that should appear only on the JUnitRun Configuration template classpath generated during IDEA project import — not on the sbt
Test / fullClasspath.Motivation: when tests are launched from the IDE, some libraries are needed at runtime that are otherwise satisfied differently during in-sbt test runs (e.g. provided by the IntelliJ instance or by an
upstream module). Until now there was no way to express "extra JAR for the IDE-launched test JVM only" without polluting
Test / fullClasspath.Implementation
settingKey[Seq[ModuleID]]intellijExtraJUnitTemplateLibraryDependencies(Keys.scala), hidden viaKeyRanks.Invisible— settable frombuild.sbtbut not surfaced in tab-completion /taskslistings.
private[sbtidea]IvyConfigurationintellijJUnitTemplateConfig(hidden, no parents). The key's modules are routed into this configuration vialibraryDependencies ++= … .map(_ % intellijJUnitTemplateConfig)inInit.scala, so they participate in normalupdateresolution but do not leak intoCompile/Test.TestClasspathTasks.fullTestClasspathForJUnitTemplatenow appendsClasspaths.managedJars(intellijJUnitTemplateConfig, classpathTypes.value, update.value)to the template classpath.fullTestClasspathForSbtis intentionally untouched.Test plan
intellijExtraJUnitTemplateLibraryDependencies appears only on the JUnit template classpathinSbtIdeaPluginIntegrationTest.scala. It:intellijExtraJUnitTemplateLibraryDependencies += "commons-io" % "commons-io" % "2.16.1"against thesimple-with-pluginfixture,createIDEARunConfigurationand assertscommons-io-2.16.1.jaris present in the generated.idea/runConfigurations/junit_template_argfile.txt,show Test/fullClasspathand asserts the same jar is absent from the captured stdout.publishLocalagainst the Scala Plugin repo.