refactor: auto-generate language configuration (#1584)

Refactor the monolithic `lvim.lang` design into a more modular approach.

IMPORTANT: run `:LvimUpdate` in order to generate the new ftplugin template files.

1 files changed, 49 insertions, 8 deletions

diff --git a/lua/lsp/utils.lua b/lua/lsp/utils.lua
index 17b9c3bc..1a5dd79d 100644
--- a/lua/lsp/utils.lua
+++ b/lua/lsp/utils.lua
@@ -10,19 +10,60 @@ function M.is_client_active(name)
   return false
 end
 
--- FIXME: this should return a list instead
-function M.get_active_client_by_ft(filetype)
-  if not lvim.lang[filetype] or not lvim.lang[filetype].lsp then
-    return nil
-  end
+function M.disable_formatting_capability(client)
+  -- FIXME: figure out a reasonable way to do this
+  client.resolved_capabilities.document_formatting = false
+  require("core.log"):debug(string.format("Turning off formatting capability for language server [%s] ", client.name))
+end
 
+function M.get_active_client_by_ft(filetype)
+  local matches = {}
   local clients = vim.lsp.get_active_clients()
   for _, client in pairs(clients) do
-    if client.name == lvim.lang[filetype].lsp.provider then
-      return client
+    local supported_filetypes = client.config.filetypes or {}
+    if client.name ~= "null-ls" and vim.tbl_contains(supported_filetypes, filetype) then
+      table.insert(matches, client)
+    end
+  end
+  return matches
+end
+
+function M.get_ls_capabilities(client_id)
+  if not client_id then
+    local buf_clients = vim.lsp.buf_get_clients()
+    for _, buf_client in ipairs(buf_clients) do
+      if buf_client.name ~= "null-ls" then
+        client_id = buf_client.id
+        break
+      end
+    end
+  end
+  if not client_id then
+    error "Unable to determine client_id"
+    return
+  end
+
+  local client = vim.lsp.get_client_by_id(tonumber(client_id))
+
+  local enabled_caps = {}
+  for capability, status in pairs(client.resolved_capabilities) do
+    if status == true then
+      table.insert(enabled_caps, capability)
+    end
+  end
+
+  return enabled_caps
+end
+
+function M.get_supported_filetypes(server_name)
+  -- print("got filetypes query request for: " .. server_name)
+  local configs = require "lspconfig/configs"
+  pcall(require, ("lspconfig/" .. server_name))
+  for _, config in pairs(configs) do
+    if config.name == server_name then
+      return config.document_config.default_config.filetypes or {}
     end
   end
-  return nil
 end
 
 return M