I have a large maven multi-module project with a sibling folder setup (a maven parent directory in the same parent-folder as all the modules; no nested projects/modules). Eclipse is the IDE, with the M2E plugin. All code is in a mono-repo (the parent-folder). All maven/code versions are up-to-date (maven 3).
The maven install phase is only used for final builds in the release cycle. Otherwise, all development relies on the code being linked via sibling folders and the /target sub-folder. I am trying to use the maven-build-cache-extension. If I use the cache and execute "mvn clean", maven deletes all the source code in /target. Subsequently, "mvn compile" determines that the project is up-to-date and does not repopulate the /target folder. All modules which depend on other modules then complain about "missing jars". The "IDE Support" chapter in the documentation says: >The cache doesn't restore the entire project state. Compiled classes, unpacked artifacts, and similar ones typically will not be restored in the build directory (aka target). Configure your IDE to not use Maven build (target) directories for compilation and execution. In that case, IDE will provide fast compilation using native caches, and the build cache will supplement that with fast builds. This seems important! But I have been unable to find any additional explanation on the internets. It has never been clear to me when to use the IDE to update the eclipse projects (alt-F5) and when to use "mvn compile". Embarrassing because I've used maven for many years. Am I really supposed to tell maven to use a different build (target) directory? If the "cache doesn't restore the entire project state", what state DOES it restore? What is the difference between "fast compilation using native caches" and "fast builds" when the only command is "mvn compile"? If I use "alt-F5 or Project -> Build automatically" in eclipse, what benefit does the maven-build-cache-extension provide? What IS the best way to take advantage of maven-build-cache-extension when all development takes place in an IDE without need for linking via jars? I am afraid I am missing critical understanding. Any help appreciated. TIA. Rich MacDonald <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
