gitsigns: toggle preview after moving to next hunk

config/gitsigns.nix

@@ -0,0 +1,70 @@
+{ helpers, ... }:
+
+{
+  plugins.gitsigns = {
+    enable = true;
+  };
+
+  keymaps = [
+    # Navigate through hunks
+    {
+      mode = [ "n" ];
+      key = "]c";
+      action = helpers.mkRaw ''
+        function()
+          if vim.wo.diff then
+            vim.cmd.normal({']c', bang = true})
+          else
+            require("gitsigns").nav_hunk('next')
+            require("gitsigns").preview_hunk()
+          end
+        end
+      '';
+    }
+    {
+      mode = [ "n" ];
+      key = "[c";
+      action = helpers.mkRaw ''
+        function()
+          if vim.wo.diff then
+            vim.cmd.normal({'[c', bang = true})
+          else
+            require("gitsigns").nav_hunk('prev')
+          end
+        end
+      '';
+    }
+    {
+      mode = [ "v" ];
+      key = "<leader>hs";
+      action = helpers.mkRaw ''
+        function()
+          require("gitsigns").stage_hunk({ vim.fn.line("."), vim.fn.line("v") })
+        end
+      '';
+      options = {
+        desc = "Stage Hunk";
+      };
+    }
+    {
+      mode = [ "n" ];
+      key = "<leader>hu";
+      action = helpers.mkRaw ''
+        require("gitsigns").undo_stage_hunk
+      '';
+      options = {
+        desc = "Undo Stage Hunk";
+      };
+    }
+    {
+      mode = [ "n" ];
+      key = "<leader>hp";
+      action = helpers.mkRaw ''
+        require("gitsigns").preview_hunk
+      '';
+      options = {
+        desc = "Preview Hunk";
+      };
+    }
+  ];
+}