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YAML

info

You can enable the extra with the :LazyExtras command. Plugins marked as optional will only be configured if they are installed.

Alternatively, you can add it to your lazy.nvim imports
lua/config/lazy.lua
require("lazy").setup({
  spec = {
    { "LazyVim/LazyVim", import = "lazyvim.plugins" },
    { import = "lazyvim.plugins.extras.lang.yaml" },
    { import = "plugins" },
  },
})

Below you can find a list of included plugins and their default settings.

caution

You don't need to copy the default settings to your config. They are only shown here for reference.

nvim-treesitter​

add yaml specific modules to treesitter

opts = function(_, opts)
  if type(opts.ensure_installed) == "table" then
    vim.list_extend(opts.ensure_installed, { "yaml" })
  end
end

SchemaStore.nvim​

yaml schema support

opts = nil

nvim-lspconfig​

correctly setup lspconfig

opts = {
  -- make sure mason installs the server
  servers = {
    yamlls = {
      -- Have to add this for yamlls to understand that we support line folding
      capabilities = {
        textDocument = {
          foldingRange = {
            dynamicRegistration = false,
            lineFoldingOnly = true,
          },
        },
      },
      -- lazy-load schemastore when needed
      on_new_config = function(new_config)
        new_config.settings.yaml.schemas = vim.tbl_deep_extend(
          "force",
          new_config.settings.yaml.schemas or {},
          require("schemastore").yaml.schemas()
        )
      end,
      settings = {
        redhat = { telemetry = { enabled = false } },
        yaml = {
          keyOrdering = false,
          format = {
            enable = true,
          },
          validate = true,
          schemaStore = {
            -- Must disable built-in schemaStore support to use
            -- schemas from SchemaStore.nvim plugin
            enable = false,
            -- Avoid TypeError: Cannot read properties of undefined (reading 'length')
            url = "",
          },
        },
      },
    },
  },
  setup = {
    yamlls = function()
      -- Neovim < 0.10 does not have dynamic registration for formatting
      if vim.fn.has("nvim-0.10") == 0 then
        require("lazyvim.util").lsp.on_attach(function(client, _)
          if client.name == "yamlls" then
            client.server_capabilities.documentFormattingProvider = true
          end
        end)
      end
    end,
  },
}