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CONTRIBUTING.md

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Contributing to LSIF(Language Server Index Format) for Java

Thank you for your interest in contributing to LSIF for Java!

There are many ways in which you can contribute, beyond writing code. Please read the following document to check how you can get involved.

Reporting Issues

You can report issues whenever:

  • Identify a reproducible problem
  • Have a feature request

Looking for an Existing Issue

Before creating a new issue, please do a search to see if the issue or feature request has already been filed.

If you find your issue already exists, make relevant comments and add your reaction:

  • 👍 - upvote
  • 👎 - downvote

Writing Good Bug Reports and Feature Requests

In order to let us know better about the issue, please make sure the following items are included with each issue:

  • The repo link which you are indexing with
  • Reproducible steps
  • What you expected to see, versus what you actually saw
  • Images, animations, or a link to a video showing the issue occurring

Contributing Fixes

If you are interested in writing code to fix issues, please check the following content to see how to set up the developing environment.

Overview

Generally speaking, the LSIF for Java uses several visitors to visit the AST(Abstract Syntax Tree) and dump the index according to the LSIF Specification.

Major modules of the LSIF for Java are listed as follow:

Setup

  1. Fork and clone the repository: git clone https://github.com/Microsoft/lsif-java.git
  2. Import lsif-java in Eclipse
  3. In the Project Exploer, open com.microsoft.java.lsif.tp > com.microsoft.java.lsif.tp.target
  4. Click Set as Active Target Platform and wait for building

Build

If you have Node.js installed (Recommended)

  1. Go to lsif-java\cmd\
  2. npm install
  3. npm run build

If you do not have Node.js installed

  1. Under the root path of the project, run ./mvnw clean verify
  2. The tool will be generated in com.microsoft.java.lsif.product\target\repository\

Run

  • Windows: Simply invoke the index.bat under lsif-java\cmd\
  • Others: Invoke the command which is the same as we defined in lsif-java\cmd\index.bat

Debug

  1. We can debug the tool by attaching to the JVM, add

    -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=6006

    as the JVM argument to the command.

  2. In Eclipse, create a new Debug Configurations, select the type as Remote Java Application

  3. In the Connect panel, find the Port setting in Connection Properties and set it to 6006

  4. Click Apply to save the configurations

  5. Click Debug to start the debug session

CLA & Code of Conduct

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.