Vscode-java: Bazel Support

[doug-ol]

vscode-java does not recognize bazel as a build environment

Environment

• Operating System:
• JDK version:
• Visual Studio Code version:
• Java extension version:

Steps To Reproduce

1. Load a java project with bazel as the build system (example)
2. Navigate to any .java file

Current Result

Receive "Classpath is incomplete" warning

Expected Result

vscode-java to infer classpath from bazel

Additional Informations

[enriched]

Seems like this work would be related to https://github.com/eclipse/eclipse.jdt.ls/issues/543

[perezd]

I would also love to see this supported.

[neakor]

I would love to get this support as well please!

[raulAtNines]

After tinkering for hours, I have not yet been able to get vscode to launch & debug my java+bazel project. I can run in console no problem, but I also love this request to get bazel fully supported in vscode-java.

[virtuahost]

Its very painful to work in a monorepo with vscode without this.

[enriched]

A thought on how to implement this. We could reuse the JDT extension bundle from salesforce/bazel-eclipse. Not sure on the best route for repackaging this for VSCode and making sure that the project is credited though.

[Jonpez2]

Interesting. I spent Friday noodling with the intellij plugin, slicing out the intellij-ide-info.txt generation piece into something I could reuse. I ended up with something _super_ hacky, which for example lifts the test code into the generator to allow injection of bits of the parsing code using intellij's dependency injection framework. From there I then generated a json snippet that can be copied-n-pasted into settings.json. Hack-city!

I could share that if people thought it useful, but it lacks a certain panache, shall we say.

I filed an issue with the bazel-IntelliJ people to see if they were enthused, but they weren't particularly, which is fair enough:

https://github.com/bazelbuild/intellij/issues/1827

[enriched]

Love it, I see your hacky plugin and raise you this hacky bash script that I'm using as a workaround

https://gist.github.com/enriched/b0a685e124a2abff3ac92bf3a5e63630

[Jonpez2]

Oh, you made a project and classpath. Maybe that's a better idea. OK when I get time I'm going to put my hacktasticness up on github and maybe try to dehack a little bit, and try to see if our bazel-intellij friends like the idea.

[Jonpez2]

Well now. I just found this thing, and I made it work with an hour's
noodling, and now I have the javas with the bazels with the vscodes. All I
had to do was to fix the distribution I was getting natively for my
code-server setup, which didn't have the platform-specific stuff. But this
is way less overhead for a bazel setup, and I bet the 'real' vscode install
works fine...

https://github.com/georgewfraser/java-language-server

On Wed, May 20, 2020 at 6:43 PM Rich Adams [e-mail] wrote:

Love it, I see your hacky plugin and raise you this hacky bash script that
I'm using as a workaround

https://gist.github.com/enriched/b0a685e124a2abff3ac92bf3a5e63630

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