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@olfi01/languageserver

v0.3.5

Published

Language server for GitHub Actions

Downloads

2

Readme

actions/languageserver

actions-languageserver hosts the actions-languageservice and makes it available via the language server protocol (LSP) as a standalone language server.

Installation

The package contains TypeScript types and compiled ECMAScript modules.

npm install @actions/languageserver

Usage

Basic usage using vscode-languageserver-node

For the server, import the module. It detects whether it's running in a Node.js environment or a web worker and initializes the appropriate connection.

server.ts:

import "@actions/languageserver";

For the client, create a new LanguageClient pointing to the server module.

client.ts:

import {LanguageClient, ServerOptions, TransportKind} from "vscode-languageclient/node";

const debugOptions = {execArgv: ["--nolazy", "--inspect=6010"]};

const clientOptions: LanguageClientOptions = {
  documentSelector: [{
    pattern: "**/.github/workflows/*.{yaml,yml}"
  }]
};

const serverModule = context.asAbsolutePath(path.join("dist", "server.js"));
const serverOptions: ServerOptions = {
  run: {module: serverModule, transport: TransportKind.ipc},
  debug: {
    module: serverModule,
    transport: TransportKind.ipc,
    options: debugOptions
  }
};

const client = new LanguageClient("actions-language", "GitHub Actions Language Server", serverOptions, clientOptions);

From a web worker

See ../browser-playground for an example implementation that hosts the language server in a web worker.

Providing advanced functionality

The language server accepts initialization options that can be used to configure additional functionality. If you pass in a github.com sessionToken, the language service will use data from github.com to perform additional validations and provide additional auto-completion suggestions.

export interface InitializationOptions {
  /**
   * GitHub token that will be used to retrieve additional information from github.com
   *
   * Requires the `repo` and `workflow` scopes
   */
  sessionToken?: string;

  /**
   * List of repositories that the language server should be aware of
   */
  repos?: RepositoryContext[];

  /**
   * Desired log level
   */
  logLevel?: LogLevel;
}

pass the initializationOptions to the LanguageClient when establishing the connection:

const clientOptions: LanguageClientOptions = {
  documentSelector: [{
    pattern: "**/.github/workflows/*.{yaml,yml}"
  }],
  initializationOptions: initializationOptions
};

const client = new LanguageClient("actions-language", "GitHub Actions Language Server", serverOptions, clientOptions);

Contributing

See CONTRIBUTING.md at the root of the repository for general guidelines and recommendations.

If you do want to contribute, please run prettier to format your code and add unit tests as appropriate before submitting your PR.

Build

npm run build

or to watch for changes

npm run watch

Test

npm test

or to watch for changes and run tests:

npm run test-watch

Lint

npm run format-check

License

This project is licensed under the terms of the MIT open source license. Please refer to MIT for the full terms.