feat: rename sumneko_lua -> lua_ls (#2439)

* feat: rename sumneko_lua -> lua_language_server

* refactor(sumneko_lua): use vim.deprecate

* refactor: handle deprecated server aliases in one place

* refactor: put server aliases in a function

* feat: rename lua_language_server -> lua_ls

lua/lspconfig.lua

@@ -9,9 +9,31 @@ function M.available_servers()
   return M.util.available_servers()
 end
 
+---@class Alias
+---@field to string The new name of the server
+---@field version string The version that the alias will be removed in
+---@param name string
+---@return Alias
+local function server_alias(name)
+  local aliases = {
+    sumneko_lua = {
+      to = 'lua_ls',
+      version = '0.2.0',
+    },
+  }
+
+  return aliases[name]
+end
+
 local mt = {}
 function mt:__index(k)
   if configs[k] == nil then
+    local alias = server_alias(k)
+    if alias then
+      vim.deprecate(k, alias.to, alias.version, 'lspconfig')
+      k = alias.to
+    end
+
     local success, config = pcall(require, 'lspconfig.server_configurations.' .. k)
     if success then
       configs[k] = config

lua/lspconfig/server_configurations/lua_ls.lua

@@ -38,11 +38,11 @@ return {
   },
   docs = {
     description = [[
-https://github.com/sumneko/lua-language-server
+https://github.com/luals/lua-language-server
 
 Lua language server.
 
-`lua-language-server` can be installed by following the instructions [here](https://github.com/sumneko/lua-language-server/wiki/Getting-Started#command-line).
+`lua-language-server` can be installed by following the instructions [here](https://github.com/luals/lua-language-server/wiki/Getting-Started#command-line).
 
 The default `cmd` assumes that the `lua-language-server` binary can be found in `$PATH`.
 
@@ -55,7 +55,7 @@ initial requests (completion, location) upon starting as well as time to first d
 Completion results will include a workspace indexing progress message until the server has finished indexing.
 
 ```lua
-require'lspconfig'.sumneko_lua.setup {
+require'lspconfig'.lua_ls.setup {
   settings = {
     Lua = {
       runtime = {
@@ -79,9 +79,9 @@ require'lspconfig'.sumneko_lua.setup {
 }
 ```
 
-See `lua-language-server`'s [documentation](https://github.com/sumneko/lua-language-server/blob/master/locale/en-us/setting.lua) for an explanation of the above fields:
-* [Lua.runtime.path](https://github.com/sumneko/lua-language-server/blob/076dd3e5c4e03f9cef0c5757dfa09a010c0ec6bf/locale/en-us/setting.lua#L5-L13)
-* [Lua.workspace.library](https://github.com/sumneko/lua-language-server/blob/076dd3e5c4e03f9cef0c5757dfa09a010c0ec6bf/locale/en-us/setting.lua#L77-L78)
+See `lua-language-server`'s [documentation](https://github.com/luals/lua-language-server/blob/master/locale/en-us/setting.lua) for an explanation of the above fields:
+* [Lua.runtime.path](https://github.com/luals/lua-language-server/blob/076dd3e5c4e03f9cef0c5757dfa09a010c0ec6bf/locale/en-us/setting.lua#L5-L13)
+* [Lua.workspace.library](https://github.com/luals/lua-language-server/blob/076dd3e5c4e03f9cef0c5757dfa09a010c0ec6bf/locale/en-us/setting.lua#L77-L78)
 
 ]],
     default_config = {

test/lspconfig_spec.lua

@@ -332,7 +332,7 @@ describe('lspconfig', function()
         exec_lua [[
         local lspconfig = require("lspconfig")
         local actual = nil
-        local _ = lspconfig.sumneko_lua
+        local _ = lspconfig.lua_ls
         local _ = lspconfig.tsserver
         lspconfig.rust_analyzer.setup {}
         return require("lspconfig.util").available_servers()

test/minimal_init.lua

@@ -52,7 +52,7 @@ end
 
 -- Add the server that troubles you here
 local name = 'pyright'
-local cmd = { 'pyright-langserver', '--stdio' } -- needed for elixirls, omnisharp, sumneko_lua
+local cmd = { 'pyright-langserver', '--stdio' } -- needed for elixirls, lua_ls, omnisharp
 if not name then
   print 'You have not defined a server name, please edit minimal_init.lua'
 end