Get editor diagnostics (LSP)¶

dddlint ships a Language Server that publishes diagnostics as you work and offers a one-click rename from an alias to its canonical term.

How the server behaves¶

• It publishes diagnostics on file open and file save.
• Each run scans the entire workspace, so cross-file drift is always caught — not just the open file.
• Alias findings carry a code action that renames the identifier to the canonical term with case preserved (ClientRepo → CustomerRepo, get_client → get_customer).

The command to launch it over stdio is:

dddlint lsp

Neovim¶

Attach the server on any buffer inside a project that has a dddlint.yaml. No filetype list needed — it is language-agnostic.

vim.api.nvim_create_autocmd("BufReadPost", {
  callback = function(args)
    local root = vim.fs.root(args.buf, { "dddlint.yaml" })
    if root then
      vim.lsp.start({
        name = "dddlint",
        cmd = { "dddlint", "lsp" },
        root_dir = root,
      }, { bufnr = args.buf })
    end
  end,
})

VS Code¶

Use a generic LSP client extension and point it at dddlint lsp for all filetypes:

{
  "lsp.servers": {
    "dddlint": {
      "command": ["uvx", "dddlint", "lsp"],
      "filetypes": ["*"]
    }
  }
}

Helix¶

[language-server.dddlint]
command = "dddlint"
args = ["lsp"]