fix: silent warning message & wrong exit status check (#81)

* fix: silent warning message & wrong exit status check

lua/guard/events.lua

@@ -44,6 +44,7 @@ local function create_lspattach_autocmd(fmt_on_save)
 end
 
 return {
+  group = group,
   watch_ft = watch_ft,
   create_lspattach_autocmd = create_lspattach_autocmd,
 }

lua/guard/format.lua

@@ -199,7 +199,7 @@ end
 
 local function attach_to_buf(buf)
   api.nvim_create_autocmd('BufWritePre', {
-    group = 'Guard',
+    group = require('guard.events').group,
     buffer = buf,
     callback = function(opt)
       if not vim.bo[opt.buf].modified then

lua/guard/lint.lua

@@ -6,6 +6,7 @@ local spawn = require('guard.spawn').try_spawn
 local ns = api.nvim_create_namespace('Guard')
 local get_prev_lines = require('guard.util').get_prev_lines
 local vd = vim.diagnostic
+local group = require('guard.events').group
 
 local function do_lint(buf)
   buf = buf or api.nvim_get_current_buf()
@@ -43,9 +44,11 @@ local debounce_timer = nil
 local function register_lint(ft, extra)
   api.nvim_create_autocmd('FileType', {
     pattern = ft,
+    group = group,
     callback = function(args)
       api.nvim_create_autocmd(vim.list_extend({ 'BufEnter' }, extra), {
         buffer = args.buf,
+        group = group,
         callback = function(opt)
           if debounce_timer then
             debounce_timer:stop()

lua/guard/spawn.lua

@@ -9,7 +9,7 @@ end
 
 local function on_failed(msg)
   vim.schedule(function()
-    vim.api.nvim_err_write('[Guard] ' .. msg)
+    vim.notify('[Guard] ' .. msg, vim.log.levels.ERROR)
   end)
 end
 
@@ -67,12 +67,12 @@ local function spawn(opt)
       end
     end)
 
-    if exit_code == 0 and num_stderr_chunks == 0 then
-      coroutine.resume(co, table.concat(chunks))
-    else
+    if exit_code ~= 0 and num_stderr_chunks ~= 0 then
       on_failed(('process %s exited with non-zero exit code %s'):format(opt.cmd, exit_code))
       coroutine.resume(co)
       return
+    else
+      coroutine.resume(co, table.concat(chunks))
     end
   end)
 

plugin/guard.lua

@@ -5,11 +5,12 @@ end
 loaded = true
 
 local api = vim.api
+local group = require('guard.events').group
 vim.api.nvim_create_user_command('GuardDisable', function(opts)
   local arg = opts.args
   local bufnr = (#opts.fargs == 0) and api.nvim_get_current_buf() or tonumber(arg)
   if bufnr then
-    local bufau = api.nvim_get_autocmds({ group = 'Guard', event = 'BufWritePre', buffer = bufnr })
+    local bufau = api.nvim_get_autocmds({ group = group, event = 'BufWritePre', buffer = bufnr })
     if #bufau ~= 0 then
       api.nvim_del_autocmd(bufau[1].id)
     end
@@ -19,7 +20,7 @@ vim.api.nvim_create_user_command('GuardEnable', function(opts)
   local arg = opts.args
   local bufnr = (#opts.fargs == 0) and api.nvim_get_current_buf() or tonumber(arg)
   if bufnr then
-    local bufau = api.nvim_get_autocmds({ group = 'Guard', event = 'BufWritePre', buffer = bufnr })
+    local bufau = api.nvim_get_autocmds({ group = group, event = 'BufWritePre', buffer = bufnr })
     if #bufau == 0 then
       require('guard.format').attach_to_buf(bufnr)
     end