openlint-language-server

A language server for OpenLint. It runs the OpenLint engine and the CLI's own ruleset loader, so an editor reports what openlint lint reports in CI.

Status: early prototype, not published. It does one thing: lint open YAML and JSON files and report the results as diagnostics. See PLAN.md.

Try it

npm install
npm test       # includes a test that the server's results match the CLI's
npm run build

Point any LSP client at bin/openlint-language-server.js --stdio. For example, in Neovim 0.11:

vim.lsp.config('openlint', {
  cmd = { 'node', '/path/to/language-server/bin/openlint-language-server.js', '--stdio' },
  filetypes = { 'yaml', 'json' },
  root_markers = { '.openlint.yaml', '.spectral.yaml', '.git' },
})
vim.lsp.enable('openlint')

How it behaves

• Ruleset: the first default-named file (.openlint.yaml, .spectral.yaml, …) at the workspace root, or the ruleset initialization option. As with the CLI, there's no built-in default: with no ruleset it warns once and reports nothing.
• Unrecognized documents: skipped without a warning (ignoreUnknownFormat), so ordinary YAML files stay quiet.
• Rule links: diagnostics from built-in rules link to their page on rules.openlint.org.

License

Apache 2.0.