gradlew clean vs gradlew clear有什么区别

Question

I wrote by mistake gradlew clear instead of gradlew clean in my react-native project's android folder, and I see that it does some serious work. So what is this doing and what is the difference between gradlew 's clear vs clean ? I could not find documentation.

Also it would be good to understand: When I run gradlew.bat it seems I'm running a java class. Where is the clean and where is the clear java class? Or is this some internal command of the gradlew (java) program?

Answer 1

OK, so the serious work is "loading 6/6 projects" and then after a while of churning away it says:

C:\dev\devreact\noam\android>gradlew clear
Incremental java compilation is an incubating feature.

FAILURE: Build failed with an exception.

* What went wrong:
Task 'clear' not found in root project 'noam'. 
Some candidates are: 'clean'.

* Try:
Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 49.374 secs   

So there is no gradlew clear

About the clean: you can glean much information by reading this: https://www.labkey.org/Documentation/wiki-page.view?name=gradleClean

The Gradle docs say nothing about cleaning and do not really explain the internals of Gradle.