Add support for version alignment in multi-module projects with java-platform

[eyalroth]

This example project is a multi-module project which uses the java-platform plugin to align the versions of the dependencies across the different modules.

Applying the plugin:

// build.gradle
plugins {
  id "nebula.lint" version "16.7.0" apply false
}
allprojects {
  apply plugin: 'nebula.lint'
  gradleLint.rules = ['all-dependency']
}

And executing the generateGradleLintReport task, yields two errors:

$ ./gradlew generateGradleLintReport

> Task :generateGradleLintReport FAILED
Error from [com.netflix.nebula.lint.rule.GradleLintRule$1] processing source file [null]

> Task :autoLintGradle FAILED
Error from [com.netflix.nebula.lint.rule.GradleLintRule$1] processing source file [null]
== Build Time Summary ==
           ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ 40% :autoLintGradle (0:00.078)
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ 60% :generateGradleLintReport (0:00.117)

== BUILD FAILED ==

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':generateGradleLintReport'.
> Could not resolve all dependencies for configuration ':common:incrementalScalaAnalysisFormain'.
   > Could not find org.scala-lang:scala-library:.
     Required by:
         project :common
   > Could not resolve project :dependencies.
     Required by:
         project :common
      > Unable to find a matching variant of project :dependencies:
          - Variant 'apiElements' capability java-scala-gradle-project:dependencies:unspecified:
              - Incompatible attribute:
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-api'.
              - Other attribute:
                  - Required org.gradle.category 'platform' and found compatible value 'platform'.
          - Variant 'enforcedApiElements' capability java-scala-gradle-project:dependencies-derived-enforced-platform:unspecified:
              - Incompatible attributes:
                  - Required org.gradle.category 'platform' and found incompatible value 'enforced-platform'.
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-api'.
          - Variant 'enforcedRuntimeElements' capability java-scala-gradle-project:dependencies-derived-enforced-platform:unspecified:
              - Incompatible attributes:
                  - Required org.gradle.category 'platform' and found incompatible value 'enforced-platform'.
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-runtime'.
          - Variant 'runtimeElements' capability java-scala-gradle-project:dependencies:unspecified:
              - Incompatible attribute:
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-runtime'.
              - Other attribute:
                  - Required org.gradle.category 'platform' and found compatible value 'platform'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':autoLintGradle'.
> Could not resolve all dependencies for configuration ':common:incrementalScalaAnalysisFormain'.
   > Could not find org.scala-lang:scala-library:.
     Required by:
         project :common
   > Could not resolve project :dependencies.
     Required by:
         project :common
      > Unable to find a matching variant of project :dependencies:
          - Variant 'apiElements' capability java-scala-gradle-project:dependencies:unspecified:
              - Incompatible attribute:
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-api'.
              - Other attribute:
                  - Required org.gradle.category 'platform' and found compatible value 'platform'.
          - Variant 'enforcedApiElements' capability java-scala-gradle-project:dependencies-derived-enforced-platform:unspecified:
              - Incompatible attributes:
                  - Required org.gradle.category 'platform' and found incompatible value 'enforced-platform'.
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-api'.
          - Variant 'enforcedRuntimeElements' capability java-scala-gradle-project:dependencies-derived-enforced-platform:unspecified:
              - Incompatible attributes:
                  - Required org.gradle.category 'platform' and found incompatible value 'enforced-platform'.
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-runtime'.
          - Variant 'runtimeElements' capability java-scala-gradle-project:dependencies:unspecified:
              - Incompatible attribute:
                  - Required org.gradle.usage 'incremental-analysis' and found incompatible value 'java-runtime'.
              - Other attribute:
                  - Required org.gradle.category 'platform' and found compatible value 'platform'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
==============================================================================

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.0/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 1s
2 actionable tasks: 2 executed

[perok]

Had the same issue. The workaround here fixed it: https://github.com/gradle/gradle/issues/6854

[ckittl]

Can confirm on @perok's hint, that it is an interrelation issue with Gradle 'scala' plugin (gradle/gradle#6854): Find Scala-only M(N)WE here based on Gradle 6.8.3.

./gradlew lintGradle

gives

> Task :lintGradle FAILED
Error from [com.netflix.nebula.lint.rule.GradleLintRule$1] processing source file [null]

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':lintGradle'.
> Could not resolve all dependencies for configuration ':incrementalScalaAnalysisFormain'.
   > Could not resolve org.scala-lang:scala-library:2.13.5.
     Required by:
         project :
      > No matching variant of org.scala-lang:scala-library:2.13.5 was found. The consumer was configured to find a usage of 'incremental-analysis' of a component but:
          - Variant 'compile' capability org.scala-lang:scala-library:2.13.5:
              - Incompatible because this component declares an API of a component and the consumer needed a usage of 'incremental-analysis' of a component
          - Variant 'enforced-platform-compile' capability org.scala-lang:scala-library-derived-enforced-platform:2.13.5:
              - Incompatible because this component declares an API of a component and the consumer needed a usage of 'incremental-analysis' of a component
          - Variant 'enforced-platform-runtime' capability org.scala-lang:scala-library-derived-enforced-platform:2.13.5:
              - Incompatible because this component declares a runtime of a component and the consumer needed a usage of 'incremental-analysis' of a component
          - Variant 'platform-compile' capability org.scala-lang:scala-library-derived-platform:2.13.5:
              - Incompatible because this component declares an API of a component and the consumer needed a usage of 'incremental-analysis' of a component
          - Variant 'platform-runtime' capability org.scala-lang:scala-library-derived-platform:2.13.5:
              - Incompatible because this component declares a runtime of a component and the consumer needed a usage of 'incremental-analysis' of a component
          - Variant 'runtime' capability org.scala-lang:scala-library:2.13.5:
              - Incompatible because this component declares a runtime of a component and the consumer needed a usage of 'incremental-analysis' of a component

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 635ms
2 actionable tasks: 1 executed, 1 up-to-date

Seems, we have to wait until the above mentioned bug is fixed...