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This project is a NetBeans plugin able to open Gradle based Java projects. The implementation is based on Geertjan Wielenga's plugin.
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readme.md

readme.md

General Description

This project is a NetBeans plugin able to open Gradle based Java projects. The implementation is based on Geertjan Wielenga's plugin. You can open a folder as a project in NetBeans like with any other project and start editing the code without actually generating any other NetBeans project files.

The project is usable with no major limitations. Open a new issue if you believe something needs to be fixed.

Current Limitations

  • It takes some time before you can actually start edit the code because the Gradle Tooling API will do everything before actually returning models to work on. This is especially painful on the first project open because it will actually download every single dependency before returning (even test dependencies). To improve performance, you should set the installation directory of Gradle. It can be set in the Tools/Options/Miscellaneous/Gradle panel.
  • It is not possible to directly open projects without a build.gradle. To open such projects, open its parent project and find the project to be opened in the SubProjects node, then right click/"Open Subproject".
  • The character encoding for the source file is not read from the Gradle script but can be set separately in project properties (stored with the settings.gradle in .nb-gradle-properties).
  • It is not detected automtically when the project needs to be reloaded. The "Reload Project" action must be executed manually (from the project's popup menu). No automatic detection is done because reloading the project is slow (just like opening it).
  • Errors occurring while loading the project is not displayed to the user but only emitted as WARNING level logs.
  • Debugging is only possible by manually attaching to the process. To run a project in debug mode a task must be defined to start the project in debug mode and listen on a particular port. Single test run can be started by right clicking the file in the project view but attaching to the process must still be done manually.
  • In case a directory for a source set does not exists it will be unavailable in the IDE and you cannot add files to it from the IDE.
  • Exclusion of directories from source sets are ignored. I don't see how it is possible in NetBeans (efficiently) because you cannot create your own ClassPath implementation.
  • Exclusion of dependencies are ignored. This is probably not too much of an issue, since they will not be ignored when executing gradle tasks and they should not be relevant when editing the code.
  • Every dependency is assumed to be a transitive dependency. This is mainly a performance issue (but not much since loading the models by the tooling API takes a lot more time) because tasks are executed by Gradle itself which of course considers these.
  • Resource directories are detected based on their name because I could not find any reliable way to do it with the tooling API. So every source directory whose last directory in its path starts with "resource" (not case-sensitive) is considered a resource directory.
  • The sourceCompatibility and the targetCompatibility in the build script are ignored but these can be set separately in project properties (stored with the settings.gradle in .nb-gradle-properties).
  • Only a single task can be executed (and the built-in tasks, like rebuild). Custom tasks will be needed to make the project really usable. Also global custom tasks like with the Maven plugin would be nice as well. Allowing to execute custom tasks is relatively straightforward to implement.
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