Feat: Improve Logging for Go Server (#68)

This MR adds an optional `debug` object to the configuration table to help users debug any connectivity issues with Gitlab. The table lets you log the requests and responses from the Go server.

lua/gitlab/server.lua

@@ -12,16 +12,18 @@ M.start = function(callback)
   local parsed_port = nil
   local callback_called = false
   local command = state.settings.bin
-    .. " "
-    .. state.settings.project_id
-    .. " "
-    .. state.settings.gitlab_url
-    .. " "
-    .. port
-    .. " "
-    .. state.settings.auth_token
-    .. " "
-    .. state.settings.log_path
+      .. " "
+      .. state.settings.project_id
+      .. " "
+      .. state.settings.gitlab_url
+      .. " "
+      .. port
+      .. " "
+      .. state.settings.auth_token
+      .. " "
+      .. "'" .. vim.json.encode(state.settings.debug) .. "'"
+      .. " "
+      .. state.settings.log_path
 
   local job_id = vim.fn.jobstart(command, {
     on_stdout = function(_, data)
@@ -86,7 +88,7 @@ M.build = function(override)
   end
 
   local cmd = u.is_windows() and "cd %s\\cmd && go build -o bin.exe && move bin.exe ..\\"
-    or "cd %s/cmd && go build -o bin && mv bin ../bin"
+      or "cd %s/cmd && go build -o bin && mv bin ../bin"
 
   local command = string.format(cmd, state.settings.bin_path)
   local null = u.is_windows() and " >NUL" or " > /dev/null"

lua/gitlab/state.lua

@@ -7,8 +7,9 @@ local u                  = require("gitlab.utils")
 local M                  = {}
 
 -- These are the default settings for the plugin
-M.settings = {
+M.settings               = {
   port = nil, -- choose random port
+  debug = { go_request = false, go_response = false },
   log_path = (vim.fn.stdpath("cache") .. "/gitlab.nvim.log"),
   reviewer = "delta",
   attachment_dir = "",