check modified before format avoid trigger many times

nvimdev · Aug 18, 2023 · 4af5cf9 · 4af5cf9
1 parent b1b95d9
commit 4af5cf9
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/lua/guard/format.lua b/lua/guard/format.lua
@@ -172,10 +172,13 @@ local function do_fmt(buf)
 end
 
 local function attach_to_buf(buf)
-  api.nvim_create_autocmd('BufWritePost', {
+  api.nvim_create_autocmd('BufWritePre', {
     group = 'Guard',
     buffer = buf,
     callback = function(opt)
+      if not vim.bo[opt.buf].modified then
+        return
+      end
       require('guard.format').do_fmt(opt.buf)
     end,
   })

diff --git a/plugin/guard.lua b/plugin/guard.lua
@@ -9,7 +9,7 @@ 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 = 'BufWritePost', buffer = bufnr })
+    local bufau = api.nvim_get_autocmds({ group = 'Guard', event = 'BufWritePre', buffer = bufnr })
     if #bufau ~= 0 then
       api.nvim_del_autocmd(bufau[1].id)
     end
@@ -19,7 +19,7 @@ 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 = 'BufWritePost', buffer = bufnr })
+    local bufau = api.nvim_get_autocmds({ group = 'Guard', event = 'BufWritePre', buffer = bufnr })
     if #bufau == 0 then
       require('guard.format').attach_to_buf(bufnr)
     end