Gradle configuration time taking too long in windows

summary of problem

There is a huge gap in configuration time when spotless plugin is applied in a multi-project build between windows and linux. I’ve created a multiproject build with 150 projects to test this out:

Configuration time with spotless plugin

• 5 seconds in linux
• between 1m 30s and 2m in windows.

Configuration time without spotless plugin

• 0.6 seconds in linux
• 1 seconds in windows.

In windows the difference is overwhelming, slowing down the overall build time.

versions

Java 1.8 Spotless 3.15.0 Gradle 4.10.2 Windows 10

example project: projectA.zip

In projectA.gradle there is a boolean variable to activate spotless plugin called spotless_plugin. You can try to enable and disable it. you can test this running from within the root projectA: linux ./gradlew clean build --parallel --scan windows gradlew.bat clean build --parallel --scan

[regrog]

I have done a really big mistake here!

target fileTree(dir: project.rootDir, includes: [

project.rootDir must be project.projectDir

DAMN! sorry, my fault…

[nedtwigg]

Thanks for the interesting case. Until someone finds time to investigate the root cause, #277 should at least alleviate the symptoms of this.