feat(plugins): add gitsigns

plugins/gitsigns.nix

@@ -0,0 +1,122 @@
+{ icons, ... }:
+
+{
+  opts = {
+    enable = true;
+
+    settings = {
+      current_line_blame = true;
+      current_line_blame_formatter = " <author>, <author_time:%R> – <summary>";
+      current_line_blame_formatter_nc = " Uncommitted";
+      current_line_blame_opts.ignore_whitespace = true;
+
+      signs = {
+        add.text = icons.GitSign;
+        change.text = icons.GitSign;
+        changedelete.text = icons.GitSign;
+        delete.text = icons.GitSign;
+        topdelete.text = icons.GitSign;
+        untracked.text = icons.GitSign;
+      };
+    };
+  };
+
+  rootOpts = {
+    # Enable catppuccin colors
+    # https://github.com/catppuccin/nvim/blob/main/lua/catppuccin/groups/integrations/gitsigns.lua
+    colorschemes.catppuccin.settings.integrations.gitsigns = true;
+
+    keymaps = [
+      {
+        key = "]g";
+        action.__raw = ''
+          function()
+            require("gitsigns").next_hunk()
+          end
+        '';
+        options.desc = "Next Git hunk";
+      }
+      {
+        key = "[g";
+        action.__raw = ''
+          function()
+            require("gitsigns").prev_hunk()
+          end
+        '';
+        options.desc = "Previous Git hunk";
+      }
+      {
+        key = "<leader>gl";
+        action.__raw = ''
+          function()
+            require("gitsigns").blame_line { full = true }
+          end
+        '';
+        options.desc = "View full Git blame";
+      }
+      {
+        key = "<Leader>gp";
+        action.__raw = ''
+          function()
+            require("gitsigns").preview_hunk_inline()
+          end
+        '';
+        options.desc = "Preview Git hunk";
+      }
+      {
+        key = "<Leader>gh";
+        action.__raw = ''
+          function()
+            require("gitsigns").reset_hunk()
+          end
+        '';
+        options.desc = "Reset Git hunk";
+      }
+      {
+        key = "<Leader>gr";
+        action.__raw = ''
+          function()
+            require("gitsigns").reset_buffer()
+          end
+        '';
+        options.desc = "Reset Git buffer";
+      }
+      {
+        key = "<Leader>gs";
+        action.__raw = ''
+          function()
+            require("gitsigns").stage_hunk()
+          end
+        '';
+        options.desc = "Stage Git hunk";
+      }
+      {
+        key = "<Leader>gS";
+        action.__raw = ''
+          function()
+            require("gitsigns").stage_buffer()
+          end
+        '';
+        options.desc = "Stage Git buffer";
+      }
+      {
+        key = "<Leader>gu";
+        action.__raw = ''
+          function()
+            require("gitsigns").undo_stage_hunk()
+          end
+        '';
+        options.desc = "Unstage Git hunk";
+      }
+      {
+        key = "<Leader>gd";
+        action.__raw = ''
+          function()
+            require("gitsigns").diffthis()
+          end
+        '';
+        options.desc = "View Git diff";
+      }
+    ];
+  };
+}