refactor(nvim): diagnostic virtual_text toggle and current_line

Move keybind to toggle virtual_text config properly.
Use current_line ability if available.

Signed-off-by: Tom Saeger <tom.saeger@gmail.com>

Author: tsaeger

lua/core/keymaps.lua

@@ -109,9 +109,6 @@ vim.keymap.set(
 )
 vim.keymap.set('n', 'gl', vim.diagnostic.open_float, { desc = '[D]iagnostic [O]pen floating message' })
 vim.keymap.set('n', '<leader>dl', vim.diagnostic.setloclist, { desc = '[D]iagnostic [l]ocation list open' })
-vim.keymap.set('n', '<leader>dv', function()
-  vim.diagnostic.config { virtual_text = not vim.diagnostic.config().virtual_text }
-end, { desc = '[D]iagnostic [v]irtual_text toggle' })
 
 -- Dashboard
 vim.keymap.set('n', '<leader>;', function()

lua/core/snippets.lua

@@ -4,16 +4,22 @@
 -- https://github.com/NvChad/NvChad/issues/1907
 (vim.hl or vim.highlight).priorities.semantic_tokens = 95 -- Or any number lower than 100, treesitter's priority level
 
+local virtual_text = {
+  prefix = '●',
+  -- Add a custom format function to show error codes
+  format = function(diagnostic)
+    local code = diagnostic.code and string.format('[%s]', diagnostic.code) or ''
+    return string.format('%s %s', code, diagnostic.message)
+  end,
+}
+-- only show current line's diagnostic
+if vim.version.ge(vim.version.parse(tostring(vim.version())), { 0, 11, 0 }) then
+  virtual_text.current_line = true
+end
+
 -- Appearance of diagnostics
 vim.diagnostic.config {
-  virtual_text = {
-    prefix = '●',
-    -- Add a custom format function to show error codes
-    format = function(diagnostic)
-      local code = diagnostic.code and string.format('[%s]', diagnostic.code) or ''
-      return string.format('%s %s', code, diagnostic.message)
-    end,
-  },
+  virtual_text = virtual_text,
   underline = false,
   update_in_insert = true,
   float = {
@@ -24,6 +30,13 @@ vim.diagnostic.config {
     vim.cmd 'highlight DiagnosticVirtualText guibg=NONE'
   end,
 }
+vim.keymap.set('n', '<leader>dv', function()
+  if vim.diagnostic.config().virtual_text then
+    vim.diagnostic.config { virtual_text = false }
+  else
+    vim.diagnostic.config { virtual_text = virtual_text }
+  end
+end, { desc = '[D]iagnostic [v]irtual_text toggle' })
 
 -- Highlight on yank
 local highlight_group = vim.api.nvim_create_augroup('YankHighlight', { clear = true })