feat: Add hunk.nvim

nix/base-system/flake.lock

@@ -48,7 +48,9 @@
       "inputs": {
         "d2-vim-src": "d2-vim-src",
         "flake-utils": "flake-utils_3",
+        "hunk-nvim-src": "hunk-nvim-src",
         "ionide-nvim-src": "ionide-nvim-src",
+        "naersk": "naersk_2",
         "neogit-src": "neogit-src",
         "nil-flake": "nil-flake",
         "nixpkgs": [
@@ -541,6 +543,22 @@
         "type": "github"
       }
     },
+    "hunk-nvim-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1726776875,
+        "narHash": "sha256-CbvfRmgVshzEH/EUn1/PfNzT+MChtTTmxfi+gTZ7Q6Y=",
+        "owner": "julienvincent",
+        "repo": "hunk.nvim",
+        "rev": "eb89245a66bdfce10436d15923bf4deb43d23c96",
+        "type": "github"
+      },
+      "original": {
+        "owner": "julienvincent",
+        "repo": "hunk.nvim",
+        "type": "github"
+      }
+    },
     "ionide-nvim-src": {
       "flake": false,
       "locked": {

nix/base-system/flake.nix

@@ -98,6 +98,7 @@
         };
         neogit-nvim = custom-flakes.packages."${system}".neogit-nvim;
         d2-vim = custom-flakes.packages."${system}".d2-vim;
+        hunk-nvim = custom-flakes.packages."${system}".hunk-nvim;
         # TODO(zaphar): Apparently this is a remote plugin so it needs some additional love.
         #nvim-bnf = custom-flakes.packages."${system}".nvim-bnf;
         nvim-treesitter-context = custom-flakes.packages."${system}".nvim-treesitter-context;
@@ -204,7 +205,7 @@ EOF";
                 vim-dadbod-completion
                 vim-dasht
                 direnv-vim
-              ]) ++ [ possession-nvim harpoon-nvim d2-vim neogit-nvim ];
+              ]) ++ [ possession-nvim harpoon-nvim d2-vim hunk-nvim neogit-nvim ];
             };
           };
         };

nix/base-system/init.lua

@@ -577,6 +577,59 @@ require('lualine').setup {
     }
 }
 
+-- Hunk diff tree viewer and editor. Replacement for Meld and company
+local hunk = require("hunk")
+hunk.setup({
+  keys = {
+    global = {
+      quit = { "q" },
+      accept = { "<leader><Cr>" },
+      focus_tree = { "<leader>e" },
+    },
+
+    tree = {
+      expand_node = { "l", "<Right>" },
+      collapse_node = { "h", "<Left>" },
+
+      open_file = { "<Cr>" },
+
+      toggle_file = { "a" },
+    },
+
+    diff = {
+      toggle_line = { "a" },
+      toggle_hunk = { "A" },
+    },
+  },
+
+  ui = {
+    tree = {
+      -- Mode can either be `nested` or `flat`
+      mode = "nested",
+      width = 35,
+    },
+    --- Can be either `vertical` or `horizontal`
+    layout = "vertical",
+  },
+
+  icons = {
+    selected = "󰡖",
+    deselected = "",
+    partially_selected = "󰛲",
+
+    folder_open = "",
+    folder_closed = "",
+  },
+
+  -- Called right after each window and buffer are created.
+  --hooks = {
+  --  ---@param _context { buf: number, tree: NuiTree, opts: table }
+  --  on_tree_mount = function(_context) end,
+  --  ---@param _context { buf: number, win: number }
+  --  on_diff_mount = function(_context) end,
+  --},
+})
+
 local dap = require('dap')
 dap.adapters.lldb = {
     type = "executable",