Update `gitsigns` config.

lua/custom/plugins/git.lua

@@ -0,0 +1,67 @@
+return {
+  -- Adds git related signs to the gutter, as well as utilities for managing changes
+  'lewis6991/gitsigns.nvim',
+  opts = {
+    -- See `:help gitsigns.txt`
+    on_attach = function(bufnr)
+      local gs = package.loaded.gitsigns
+
+      local function map(mode, l, r, opts)
+        opts = opts or {}
+        opts.buffer = bufnr
+        vim.keymap.set(mode, l, r, opts)
+      end
+
+      -- Navigation
+      map({ 'n', 'v' }, ']h', function()
+        if vim.wo.diff then
+          return ']h'
+        end
+        vim.schedule(function()
+          gs.next_hunk()
+        end)
+        return '<Ignore>'
+      end, { expr = true, desc = 'Jump to next hunk' })
+
+      map({ 'n', 'v' }, '[h', function()
+        if vim.wo.diff then
+          return '[h'
+        end
+        vim.schedule(function()
+          gs.prev_hunk()
+        end)
+        return '<Ignore>'
+      end, { expr = true, desc = 'Jump to previous hunk' })
+
+      -- Actions
+      -- visual mode
+      map('v', '<leader>ghs', function()
+        gs.stage_hunk { vim.fn.line '.', vim.fn.line 'v' }
+      end, { desc = 'stage git hunk' })
+      map('v', '<leader>ghr', function()
+        gs.reset_hunk { vim.fn.line '.', vim.fn.line 'v' }
+      end, { desc = 'reset git hunk' })
+      -- normal mode
+      map('n', '<leader>ghs', gs.stage_hunk, { desc = 'git stage hunk' })
+      map('n', '<leader>ghr', gs.reset_hunk, { desc = 'git reset hunk' })
+      map('n', '<leader>gs', gs.stage_buffer, { desc = 'git stage buffer' })
+      map('n', '<leader>ghu', gs.undo_stage_hunk, { desc = 'undo stage hunk' })
+      map('n', '<leader>gr', gs.reset_buffer, { desc = 'git reset buffer' })
+      map('n', '<leader>ghp', gs.preview_hunk, { desc = 'preview git hunk' })
+      map('n', '<leader>ghb', function()
+        gs.blame_line { full = false }
+      end, { desc = 'git blame line' })
+      map('n', '<leader>gd', gs.diffthis, { desc = 'git diff against index' })
+      map('n', '<leader>gD', function()
+        gs.diffthis '~'
+      end, { desc = 'git diff against last commit' })
+
+      -- Toggles
+      map('n', '<leader>gtb', gs.toggle_current_line_blame, { desc = 'toggle git blame line' })
+      map('n', '<leader>gtd', gs.toggle_deleted, { desc = 'toggle git show deleted' })
+
+      -- Text object
+      map({ 'o', 'x' }, 'ih', ':<C-U>Gitsigns select_hunk<CR>', { desc = 'select git hunk' })
+    end,
+  },
+}