Research Report: Inquiry about a POC JetBrains support and screenshots

Original Research Query

What is this POC about? Does it support JetBrains? gitlab-org/editor-extensions&158

What screenshots are there?

Research Report

This report synthesizes information regarding the GitLab CI/CD Yaml Language Service Proof of Concept (POC), focusing on its purpose, JetBrains IDE support, and available visual demonstrations, based on the provided research reports.

The primary item of interest is the epic GitLab CI/CD Yaml Language Service - POC (gitlab-org/editor-extensions&158).

1. What is this POC about?

The Proof of Concept (POC) is centered around the GitLab CI/CD Yaml Language Service. Its main objective is to deliver advanced language support features for .gitlab-ci.yml files directly within code editors.

Key aspects of the POC include:

  • Purpose: To provide enhanced editing capabilities, real-time validation, and intelligent code assistance for GitLab CI/CD configuration files. This aims to improve the developer experience when working with the GitLab-specific YAML syntax, which includes features like !reference and extends tags.
  • Technology: It leverages the Language Server Protocol (LSP) and the GitLab Language Server (gitlab-org/editor-extensions/gitlab-lsp).
  • Status: The project is experimental and not an official GitLab product. As noted in the main epic description:

    Note: This project is experimental and not an official GitLab product. This page contains information related to unofficial products, features, and functionality. It is important to note that the information presented is for informational purposes only. Please do not rely on this information for purchasing or planning purposes. The development, release, and timing of...

  • Core Functionality (from gitlab-org/editor-extensions&158+):

    The GitLab CI/CD Language Service aims to provide advanced language support features for .gitlab-ci.yml files through the Language Server Protocol (LSP) and the GitLab Language Server.

    This service enables advanced editing features, validation, and intelligent code assistance for GitLab CI/CD configuration files.

  • Technical Overview: A detailed technical overview is available in issue Documentation - CI/CD Yaml Language Service (gitlab-org/editor-extensions/gitlab-lsp#824). This document describes the architecture, which includes:
    • Document Service & Transformer: Listens to file events (open, change, save) and creates a document context.
    • CI YAML Language Service: The central orchestrator that handles document events, queues work, and combines data from different sources.
    • Async Validation Path:
      • CIMergedConfigService: Uses the Rails API (via GraphQL) to fetch and validate the merged CI configuration.
    • AST Analysis Path:
      • Document Store: Parses the document using a YAML parser and Tree‐Sitter to build an AST.
    • AST Services:

2. Does it support JetBrains?

Yes, the POC explicitly includes support for JetBrains IDEs.

Several issues and merge requests confirm that JetBrains integration is a specific focus:

These items clearly demonstrate active development and testing of the language service within the JetBrains environment.

3. What screenshots are there?

Several visual demonstrations, including a static screenshot and multiple demo videos, are available:

4. Relevant Code Snippets

The technical overview in gitlab-org/editor-extensions/gitlab-lsp#824+ references key component file paths within the ci-language-service-poc branch of the gitlab-org/editor-extensions/gitlab-lsp repository:

  • src/common/document_service.ts
  • src/common/ci_cd_yaml_language_service/ci_yaml_language_service.ts
  • src/common/ci_cd_yaml_language_service/ci_merged_config_service.ts
  • src/common/ci_cd_yaml_language_service/document_store.ts
  • src/common/ci_cd_yaml_language_service/ast/reference_tag.ts

5. Relevant Comments

The research reports did not identify specific user comments that provided additional information pertinent to the user's query beyond what is contained in the descriptions of the epics and issues themselves.

Conclusion

The GitLab CI/CD Yaml Language Service POC is an experimental project aimed at providing advanced editing features, validation, and intelligent code assistance for .gitlab-ci.yml files using the Language Server Protocol. The POC explicitly supports JetBrains IDEs, with dedicated efforts for integration into the GitLab JetBrains plugin. Screenshots and demo videos showcasing the language service features are available in the main epic description and linked demo issues, including a specific demo for the JetBrains environment.

This issue was automatically created from a research report generated on 2025-05-24T19:04:30.110Z