Import gitsigns README.md recommended keymaps (and apply stylua)

the previously added visual mode for ]c [c is kept.

init.lua

@@ -126,11 +126,16 @@ require('lazy').setup({
         changedelete = { text = '~' },
       },
       on_attach = function(bufnr)
-        vim.keymap.set('n', '<leader>hp', require('gitsigns').preview_hunk, { buffer = bufnr, desc = 'Preview git hunk' })
-
-        -- don't override the built-in and fugitive keymaps
         local gs = package.loaded.gitsigns
-        vim.keymap.set({ 'n', 'v' }, ']c', function()
+
+        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' }, ']c', function()
           if vim.wo.diff then
             return ']c'
           end
@@ -138,8 +143,9 @@ require('lazy').setup({
             gs.next_hunk()
           end)
           return '<Ignore>'
-        end, { expr = true, buffer = bufnr, desc = 'Jump to next hunk' })
-        vim.keymap.set({ 'n', 'v' }, '[c', function()
+        end, { expr = true })
+
+        map({ 'n', 'v' }, '[c', function()
           if vim.wo.diff then
             return '[c'
           end
@@ -147,7 +153,35 @@ require('lazy').setup({
             gs.prev_hunk()
           end)
           return '<Ignore>'
-        end, { expr = true, buffer = bufnr, desc = 'Jump to previous hunk' })
+        end, { expr = true })
+
+        -- Actions
+        map('v', '<leader>hs', function()
+          gs.stage_hunk { vim.fn.line '.', vim.fn.line 'v' }
+        end)
+        map('v', '<leader>hr', function()
+          gs.reset_hunk { vim.fn.line '.', vim.fn.line 'v' }
+        end)
+
+        map('n', '<leader>hs', gs.stage_hunk)
+        map('n', '<leader>hr', gs.reset_hunk)
+        map('n', '<leader>hS', gs.stage_buffer)
+        map('n', '<leader>hu', gs.undo_stage_hunk)
+        map('n', '<leader>hR', gs.reset_buffer)
+        map('n', '<leader>hp', gs.preview_hunk)
+        map('n', '<leader>hb', function()
+          gs.blame_line { full = true }
+        end)
+        map('n', '<leader>hd', gs.diffthis)
+        map('n', '<leader>hD', function()
+          gs.diffthis '~'
+        end)
+
+        map('n', '<leader>tb', gs.toggle_current_line_blame)
+        map('n', '<leader>td', gs.toggle_deleted)
+
+        -- Text object
+        map({ 'o', 'x' }, 'ih', ':<C-U>Gitsigns select_hunk<CR>')
       end,
     },
   },