Post MR cleanup (better error handling, comments, etc)

cmd/main.go

@@ -11,16 +11,22 @@ import (
 )
 
 func main() {
-
 	branchName, err := getCurrentBranch()
-	errCheck(err)
+
+	if err != nil {
+		log.Fatalf("Failure: Failed to get current branch: %v", err)
+	}
+
 	if branchName == "main" || branchName == "master" {
 		log.Fatalf("Cannot run on %s branch", branchName)
 	}
 
 	/* Initialize Gitlab client */
 	var c Client
-	errCheck(c.Init(branchName))
+
+	if err := c.Init(branchName); err != nil {
+		log.Fatalf("Failure: Failed to iniialize client: %v", err)
+	}
 
 	m := http.NewServeMux()
 	m.Handle("/approve", withGitlabContext(http.HandlerFunc(ApproveHandler), c))
@@ -45,10 +51,6 @@ func main() {
 	<-done
 }
 
-type ResponseError struct {
-	message string
-}
-
 func withGitlabContext(next http.HandlerFunc, c Client) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		ctx := context.WithValue(context.Background(), "client", c)
@@ -56,13 +58,6 @@ func withGitlabContext(next http.HandlerFunc, c Client) http.Handler {
 	})
 }
 
-func errCheck(err error) {
-	if err != nil {
-		log.Fatalf("Failure: %s", err)
-		os.Exit(1)
-	}
-}
-
 /* Gets the current branch */
 func getCurrentBranch() (res string, e error) {
 	gitCmd := exec.Command("git", "rev-parse", "--abbrev-ref", "HEAD")
@@ -73,5 +68,4 @@ func getCurrentBranch() (res string, e error) {
 	}
 
 	return strings.TrimSpace(string(output)), nil
-
 }

lua/gitlab/init.lua

@@ -19,85 +19,70 @@ M.edit_comment      = comment.edit_comment
 M.delete_comment   = comment.delete_comment
 M.reply            = discussions.reply
 
--- Builds the Go binary, initializes the plugin, fetches MR info
-M.build             = function(args)
-  if args == nil then args = {} end
+-- Builds the Go binary
+local function build_binary()
   local command = string.format("cd %s && make", state.BIN_PATH)
   local installCode = os.execute(command .. "> /dev/null")
   if installCode ~= 0 then
     notify("Could not install gitlab.nvim!", "error")
-    return
-  else
-    M.setup(args, true)
+    return false
   end
+  return true
 end
 
-M.setup             = function(args, build_only)
-  local file_path = M.current_file_path()
-  local parent_dir = vim.fn.fnamemodify(file_path, ":h:h:h")
+
+-- Setups up the binary (if not built), starts the Go server, and calls the /info endpoint,
+-- which sets the Gitlab project's information in gitlab.nvim's state module
+M.setup = function(args)
+  local file_path = u.current_file_path()
+  local parent_dir = vim.fn.fnamemodify(file_path, ":h:h:h:h")
   state.BIN_PATH = parent_dir
   state.BIN = parent_dir .. "/bin"
 
   if args == nil then args = {} end
-  if args.dev == true then
-    M.build(args)
-  end
-
-  local binExists = io.open(state.BIN, "r")
-  if not binExists or args.dev == true then
-    local command = string.format("cd %s && make", state.BIN_PATH)
-    local installCode = os.execute(command .. "> /dev/null")
-    if installCode ~= 0 then
-      require("notify")("Could not install gitlab.nvim! Do you have Go installed?", "error")
-      return
-    end
-  end
 
   local binary_exists = vim.loop.fs_stat(state.BIN)
   if binary_exists == nil then
-    return -- Ensure build function completes before initializing plugin
+    build_binary()
   end
 
-  if build_only then return end
-
   local config_file_path = vim.fn.getcwd() .. "/.gitlab.nvim"
   local config_file_content = u.read_file(config_file_path)
   if config_file_content == nil then
     return
   end
 
-  args.project_id = config_file_content
-
-  if args.project_id == nil then
-    args.project_id = u.read_file(state.BIN_PATH .. "/.gitlab/project_id")
+  state.PROJECT_ID = config_file_content
+  if state.PROJECT_ID == nil then
     error("No project ID provided!")
   end
 
-  state.PROJECT_ID = args.project_id
+  if type(tonumber(state.PROJECT_ID)) ~= 'number' then
+    error("The .gitlab.nvim project file may only contain a project number")
+  end
 
   if args.base_branch ~= nil then
     state.BASE_BRANCH = args.base_branch
   end
 
-  local error_message = "Failed to set up gitlab.nvim, could not get project information."
   if u.is_gitlab_repo() then
     state.PORT = args.port or 21036
     vim.fn.jobstart(state.BIN .. " " .. state.PROJECT_ID .. " " .. state.PORT, {
       on_stdout = function(job_id)
         if job_id <= 0 then
-          notify(error_message, "error")
+          notify("Could not start gitlab.nvim binary", "error")
           return
         else
           local response_ok, response = pcall(curl.get, "localhost:" .. state.PORT .. "/info",
             { timeout = 750 })
           if response == nil or not response_ok then
-            notify(error_message, "error")
+            notify("The gitlab.nvim server did not respond", "error")
             return
           end
           local body = response.body
           local parsed_ok, data = pcall(vim.json.decode, body)
           if parsed_ok ~= true then
-            notify(error_message, "error")
+            notify("The gitlab.nvim server returned an invalid response to the /info endpoint", "error")
             return
           end
           state.INFO = data
@@ -109,9 +94,4 @@ M.setup             = function(args, build_only)
   end
 end
 
-M.current_file_path = function()
-  local path = debug.getinfo(1, 'S').source:sub(2)
-  return vim.fn.fnamemodify(path, ':p')
-end
-
 return M

lua/gitlab/utils/init.lua

@@ -239,6 +239,12 @@ local split_diff_view_filename = function(filename)
   return hash, path
 end
 
+local current_file_path = function()
+  local path = debug.getinfo(1, 'S').source:sub(2)
+  return vim.fn.fnamemodify(path, ':p')
+end
+
+
 M.get_relative_file_path = get_relative_file_path
 M.get_current_line_number = get_current_line_number
 M.get_buffer_text = get_buffer_text
@@ -259,5 +265,6 @@ M.exit = exit
 M.read_file = read_file
 M.split_diff_view_filename = split_diff_view_filename
 M.branch_exists = branch_exists
+M.current_file_path = current_file_path
 M.P = P
 return M