feat(diagnostic): add diagnostic config (#1335)

Co-authored-by: gelocraft <gelocraft@users.noreply.github.com>

README.md

@@ -27,6 +27,7 @@ External Requirements:
 - Clipboard tool (xclip/xsel/win32yank or other depending on the platform)
 - A [Nerd Font](https://www.nerdfonts.com/): optional, provides various icons
   - if you have it set `vim.g.have_nerd_font` in `init.lua` to true
+- Emoji fonts (Ubuntu only, and only if you want emoji!) `sudo apt install fonts-noto-color-emoji`
 - Language Setup:
   - If you want to write Typescript, you need `npm`
   - If you want to write Golang, you will need `go`

init.lua

@@ -564,7 +564,7 @@ require('lazy').setup({
           --
           -- When you move your cursor, the highlights will be cleared (the second autocommand).
           local client = vim.lsp.get_client_by_id(event.data.client_id)
-          if client and client.supports_method(vim.lsp.protocol.Methods.textDocument_documentHighlight) then
+          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_documentHighlight) then
             local highlight_augroup = vim.api.nvim_create_augroup('kickstart-lsp-highlight', { clear = false })
             vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
               buffer = event.buf,
@@ -591,7 +591,7 @@ require('lazy').setup({
           -- code, if the language server you are using supports them
           --
           -- This may be unwanted, since they displace some of your code
-          if client and client.supports_method(vim.lsp.protocol.Methods.textDocument_inlayHint) then
+          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_inlayHint) then
             map('<leader>th', function()
               vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled { bufnr = event.buf })
             end, '[T]oggle Inlay [H]ints')
@@ -599,15 +599,34 @@ require('lazy').setup({
         end,
       })
 
-      -- Change diagnostic symbols in the sign column (gutter)
-      -- if vim.g.have_nerd_font then
-      --   local signs = { ERROR = '', WARN = '', INFO = '', HINT = '' }
-      --   local diagnostic_signs = {}
-      --   for type, icon in pairs(signs) do
-      --     diagnostic_signs[vim.diagnostic.severity[type]] = icon
-      --   end
-      --   vim.diagnostic.config { signs = { text = diagnostic_signs } }
-      -- end
+      -- Diagnostic Config
+      -- See :help vim.diagnostic.Opts
+      vim.diagnostic.config {
+        severity_sort = true,
+        float = { border = 'rounded', source = 'if_many' },
+        underline = { severity = vim.diagnostic.severity.ERROR },
+        signs = vim.g.have_nerd_font and {
+          text = {
+            [vim.diagnostic.severity.ERROR] = '󰅚 ',
+            [vim.diagnostic.severity.WARN] = '󰀪 ',
+            [vim.diagnostic.severity.INFO] = '󰋽 ',
+            [vim.diagnostic.severity.HINT] = '󰌶 ',
+          },
+        } or {},
+        virtual_text = {
+          source = 'if_many',
+          spacing = 2,
+          format = function(diagnostic)
+            local diagnostic_message = {
+              [vim.diagnostic.severity.ERROR] = diagnostic.message,
+              [vim.diagnostic.severity.WARN] = diagnostic.message,
+              [vim.diagnostic.severity.INFO] = diagnostic.message,
+              [vim.diagnostic.severity.HINT] = diagnostic.message,
+            }
+            return diagnostic_message[diagnostic.severity]
+          end,
+        },
+      }
 
       -- LSP servers and clients are able to communicate to each other what features they support.
       --  By default, Neovim doesn't support everything that is in the LSP specification.
@@ -675,8 +694,6 @@ require('lazy').setup({
       require('mason-tool-installer').setup { ensure_installed = ensure_installed }
 
       require('mason-lspconfig').setup {
-        ensure_installed = {}, -- explicitly set to an empty table (Kickstart populates installs via mason-tool-installer)
-        automatic_installation = false,
         handlers = {
           function(server_name)
             local server = servers[server_name] or {}

lua/kickstart/plugins/gitsigns.lua

@@ -44,7 +44,7 @@ return {
         map('n', '<leader>hs', gitsigns.stage_hunk, { desc = 'git [s]tage hunk' })
         map('n', '<leader>hr', gitsigns.reset_hunk, { desc = 'git [r]eset hunk' })
         map('n', '<leader>hS', gitsigns.stage_buffer, { desc = 'git [S]tage buffer' })
-        map('n', '<leader>hu', gitsigns.undo_stage_hunk, { desc = 'git [u]ndo stage hunk' })
+        map('n', '<leader>hu', gitsigns.stage_hunk, { desc = 'git [u]ndo stage hunk' })
         map('n', '<leader>hR', gitsigns.reset_buffer, { desc = 'git [R]eset buffer' })
         map('n', '<leader>hp', gitsigns.preview_hunk, { desc = 'git [p]review hunk' })
         map('n', '<leader>hb', gitsigns.blame_line, { desc = 'git [b]lame line' })
@@ -54,7 +54,7 @@ return {
         end, { desc = 'git [D]iff against last commit' })
         -- Toggles
         map('n', '<leader>tb', gitsigns.toggle_current_line_blame, { desc = '[T]oggle git show [b]lame line' })
-        map('n', '<leader>tD', gitsigns.toggle_deleted, { desc = '[T]oggle git show [D]eleted' })
+        map('n', '<leader>tD', gitsigns.preview_hunk_inline, { desc = '[T]oggle git show [D]eleted' })
       end,
     },
   },