add gitsigns

lua/plugins/gitsigns.lua

@@ -0,0 +1,64 @@
+return {
+  'lewis6991/gitsigns.nvim',
+  event = 'BufReadPre',
+
+  ---@module 'gitsigns'
+  ---@type GitSigns.Config
+  opts = {
+    signs = {
+      add          = { text = '┃' },
+      change       = { text = '┃' },
+      delete       = { text = '▁' },
+      topdelete    = { text = '▔' },
+      changedelete = { text = '~' },
+      untracked    = { text = '┆' },
+    },
+    signs_staged = {
+      add          = { text = '┃' },
+      change       = { text = '┃' },
+      delete       = { text = '▁' },
+      topdelete    = { text = '▔' },
+      changedelete = { text = '~' },
+    },
+    signs_staged_enable = true,
+    current_line_blame = false,
+
+    on_attach = function(bufnr)
+      local gs = require('gitsigns')
+      local function map(mode, lhs, rhs, desc)
+        vim.keymap.set(mode, lhs, rhs, { buffer = bufnr, desc = desc })
+      end
+
+      map('n', ']h', function()
+        if vim.wo.diff then
+          vim.cmd.normal({ ']c', bang = true })
+        else
+          gs.nav_hunk('next')
+        end
+      end, 'Next hunk')
+
+      map('n', '[h', function()
+        if vim.wo.diff then
+          vim.cmd.normal({ '[c', bang = true })
+        else
+          gs.nav_hunk('prev')
+        end
+      end, 'Prev hunk')
+
+      map('n', '<leader>hs', function()
+        gs.stage_hunk({ vim.fn.line('.'), vim.fn.line('v') })
+      end, 'Stage hunk (selection)')
+
+      map('v', '<leader>hr', function()
+        gs.reset_hunk({ vim.fn.line('.'), vim.fn.line('v') })
+      end, 'Reset hunk (selection)')
+
+      map('n', '<leader>hp', gs.preview_hunk, 'Preview hunk')
+      map('n', '<leader>hd', gs.diffthis, 'Diff this')
+      map('n', '<leader>hD', function() gs.diffthis('~') end, 'Diff this (last commit)')
+
+      map('n', '<leader>gb', gs.toggle_current_line_blame, 'Toggle line blame')
+      map('n', '<leader>gB', gs.blame, 'Blame buffer')
+    end
+  },
+}