feat: connect to credo via port

Author: mhanberg

README.md

@@ -87,7 +87,8 @@ local elixirls = require("elixir.elixirls")
 
 elixir.setup {
   credo = {
-    cmd = "path/to/credo-language-server",
+    port = 9000, -- connect via TCP with the given port. mutually exclusive with `cmd`
+    cmd = "path/to/credo-language-server", -- path to the executable. mutually exclusive with `port`
     on_attach = function(client, bufnr)
       -- custom keybinds
     end

lua/elixir/credo/init.lua

@@ -24,10 +24,16 @@ function M.setup(opts)
         file = nil
       end
 
+      local cmd
+      if type(opts.port) == "number" then
+        cmd = vim.lsp.rpc.connect("127.0.0.1", opts.port)
+      else
+        cmd = { opts.cmd, "--stdio" }
+      end
+
       vim.lsp.start {
         name = "Credo",
-        -- cmd = vim.lsp.rpc.connect('127.0.0.1', 9000),
-        cmd = { opts.cmd, "--stdio" },
+        cmd = cmd,
         settings = {},
         root_dir = vim.fs.dirname(file),
         on_attach = opts.on_attach or function() end,