make server_path work headless and in clean mode

Author: joaopluigi

lua/eca/api.lua

@@ -11,6 +11,11 @@ local M = {}
 function M.chat(opts)
   opts = opts or {}
   local eca = require("eca")
+
+  if not M.is_server_running() then
+    M.start_server()
+  end
+
   eca.open_sidebar(opts)
 end
 

lua/eca/server.lua

@@ -103,8 +103,6 @@ function M:start(opts)
   local this_file = debug.getinfo(1, "S").source:sub(2)
   local proj_root = vim.fn.fnamemodify(this_file, ":p:h:h:h")
   local script_path = proj_root .. "/scripts/server_path.lua"
-  local logger_path = proj_root .. "/lua/eca/logger.lua"
-  local utils_path = proj_root .. "/lua/eca/utils.lua"
 
   local nvim_exe = vim.fn.exepath("nvim")
 
@@ -114,7 +112,7 @@ function M:start(opts)
 
   local lua_cmd = string.format("lua ServerPath.run(%s)", Utils.lua_quote(Config.server_path) or "")
 
-  local cmd = { nvim_exe, "--headless", "--noplugin", "-u", utils_path, "-u", logger_path, "-u", script_path, "-c", lua_cmd }
+  local cmd = { nvim_exe, "--headless", "--noplugin", "--clean", "-u", script_path, "-c", lua_cmd }
 
   vim.system(cmd, { text = true }, function(out)
     if out.code ~= 0 then

scripts/server_path.lua

@@ -1,7 +1,16 @@
 local ServerPath = {}
 
--- Export module
-_G.ServerPath = ServerPath
+-- Setup if headless
+if #vim.api.nvim_list_uis() == 0 then
+  _G.ServerPath = ServerPath
+  vim.cmd([[let &rtp.=','.getcwd()]])
+  vim.cmd('set rtp+=deps/nui.nvim')
+  vim.cmd('set rtp+=deps/eca-nvim')
+  vim.o.swapfile = false
+  vim.o.backup = false
+  vim.o.writebackup = false
+  require("eca").setup({})
+end
 
 ServerPath.run = function(custom_path)
   local path_finder = require("eca.path_finder"):new()