feat: make diff keymaps adjustable via LazyVim spec (#47)

Co-authored-by: ThomasK33 <2198487+ThomasK33@users.noreply.github.com>
Co-authored-by: blink-so[bot] <211532188+blink-so[bot]@users.noreply.github.com>

Author: ThomasK33

README.md

@@ -61,6 +61,9 @@ Using [lazy.nvim](https://github.com/folke/lazy.nvim):
       desc = "Add file",
       ft = { "NvimTree", "neo-tree", "oil" },
     },
+    -- Diff management
+    { "<leader>da", "<cmd>ClaudeCodeDiffAccept<cr>", desc = "Accept diff" },
+    { "<leader>dq", "<cmd>ClaudeCodeDiffDeny<cr>", desc = "Deny diff" },
   },
 }
 ```
@@ -88,6 +91,8 @@ That's it! For more configuration options, see [Advanced Setup](#advanced-setup)
 - `:ClaudeCodeSend` - Send current visual selection to Claude, or add files from tree explorer
 - `:ClaudeCodeTreeAdd` - Add selected file(s) from tree explorer to Claude context (also available via ClaudeCodeSend)
 - `:ClaudeCodeAdd <file-path> [start-line] [end-line]` - Add a specific file or directory to Claude context by path with optional line range
+- `:ClaudeCodeDiffAccept` - Accept the current diff changes (equivalent to `<leader>da`)
+- `:ClaudeCodeDiffDeny` - Deny/reject the current diff changes (equivalent to `<leader>dq`)
 
 ### Toggle Behavior
 
@@ -137,7 +142,7 @@ When Claude proposes changes to your files, the plugin opens a native Neovim dif
 ### Accepting Changes
 
 - **`:w` (save)** - Accept the changes and apply them to your file
-- **`<leader>da`** - Accept the changes using the dedicated keymap
+- **`<leader>da`** - Accept the changes using the dedicated keymap (configured in LazyVim spec)
 
 You can edit the proposed changes in the right-hand diff buffer before accepting them. This allows you to modify Claude's suggestions or make additional tweaks before applying the final version to your file.
 
@@ -146,7 +151,7 @@ Both methods signal Claude Code to apply the changes to your file, after which t
 ### Rejecting Changes
 
 - **`:q` or `:close`** - Close the diff view to reject the changes
-- **`<leader>dq`** - Reject changes using the dedicated keymap
+- **`<leader>dq`** - Reject changes using the dedicated keymap (configured in LazyVim spec)
 - **`:bdelete` or `:bwipeout`** - Delete the diff buffer to reject changes
 
 When you reject changes, the diff view closes and the original file remains unchanged.
@@ -155,6 +160,28 @@ When you reject changes, the diff view closes and the original file remains unch
 
 You can also navigate to the Claude Code terminal window and accept or reject diffs directly from within Claude's interface. This provides an alternative way to manage diffs without using the Neovim-specific keymaps.
 
+### Customizing Diff Keymaps
+
+The diff keymaps are configured in the LazyVim spec and can be customized by modifying the `keys` table:
+
+```lua
+{
+  "coder/claudecode.nvim",
+  config = true,
+  keys = {
+    -- ... other keymaps ...
+
+    -- Customize diff keymaps to avoid conflicts (e.g., with debugger)
+    { "<leader>ya", "<cmd>ClaudeCodeDiffAccept<cr>", desc = "Accept diff" },
+    { "<leader>yn", "<cmd>ClaudeCodeDiffDeny<cr>", desc = "Deny diff" },
+
+    -- Or disable them entirely by omitting them from the keys table
+  },
+}
+```
+
+The commands `ClaudeCodeDiffAccept` and `ClaudeCodeDiffDeny` work only in diff buffers created by the plugin and will show a warning if used elsewhere.
+
 ### How It Works
 
 The plugin uses a signal-based approach where accepting or rejecting a diff sends a message to Claude Code rather than directly modifying files. This ensures consistency and allows Claude Code to handle the actual file operations while the plugin manages the user interface and buffer reloading.

dev-config.lua

@@ -31,6 +31,10 @@ return {
     { "<leader>ai", "<cmd>ClaudeCodeStatus<cr>", desc = "Claude Status" },
     { "<leader>aS", "<cmd>ClaudeCodeStart<cr>", desc = "Start Claude Server" },
     { "<leader>aQ", "<cmd>ClaudeCodeStop<cr>", desc = "Stop Claude Server" },
+
+    -- Diff management (buffer-local, only active in diff buffers)
+    { "<leader>aa", "<cmd>ClaudeCodeDiffAccept<cr>", desc = "Accept diff" },
+    { "<leader>ad", "<cmd>ClaudeCodeDiffDeny<cr>", desc = "Deny diff" },
   },
 
   -- Development configuration - all options shown with defaults commented out

lua/claudecode/diff.lua

@@ -578,23 +578,10 @@ function M._create_diff_view_from_window(target_window, old_file_path, new_buffe
   vim.cmd("wincmd =")
   vim.api.nvim_set_current_win(new_win)
 
-  local keymap_opts = { buffer = new_buffer, silent = true }
-
-  vim.keymap.set("n", "<leader>da", function()
-    M._resolve_diff_as_saved(tab_name, new_buffer)
-  end, keymap_opts)
-
-  vim.keymap.set("n", "<leader>dq", function()
-    if vim.api.nvim_win_is_valid(new_win) then
-      vim.api.nvim_win_close(new_win, true)
-    end
-    if vim.api.nvim_win_is_valid(target_window) then
-      vim.api.nvim_set_current_win(target_window)
-      vim.cmd("diffoff")
-    end
-
-    M._resolve_diff_as_rejected(tab_name)
-  end, keymap_opts)
+  -- Store diff context in buffer variables for user commands
+  vim.b[new_buffer].claudecode_diff_tab_name = tab_name
+  vim.b[new_buffer].claudecode_diff_new_win = new_win
+  vim.b[new_buffer].claudecode_diff_target_win = target_window
 
   -- Return window information for later storage
   return {
@@ -899,4 +886,43 @@ function M.reload_file_buffers_manual(file_path, original_cursor_pos)
   return reload_file_buffers(file_path, original_cursor_pos)
 end
 
+--- Accept the current diff (user command version)
+-- This function reads the diff context from buffer variables
+function M.accept_current_diff()
+  local current_buffer = vim.api.nvim_get_current_buf()
+  local tab_name = vim.b[current_buffer].claudecode_diff_tab_name
+
+  if not tab_name then
+    vim.notify("No active diff found in current buffer", vim.log.levels.WARN)
+    return
+  end
+
+  M._resolve_diff_as_saved(tab_name, current_buffer)
+end
+
+--- Deny/reject the current diff (user command version)
+-- This function reads the diff context from buffer variables
+function M.deny_current_diff()
+  local current_buffer = vim.api.nvim_get_current_buf()
+  local tab_name = vim.b[current_buffer].claudecode_diff_tab_name
+  local new_win = vim.b[current_buffer].claudecode_diff_new_win
+  local target_window = vim.b[current_buffer].claudecode_diff_target_win
+
+  if not tab_name then
+    vim.notify("No active diff found in current buffer", vim.log.levels.WARN)
+    return
+  end
+
+  -- Close windows and clean up (same logic as the original keymap)
+  if new_win and vim.api.nvim_win_is_valid(new_win) then
+    vim.api.nvim_win_close(new_win, true)
+  end
+  if target_window and vim.api.nvim_win_is_valid(target_window) then
+    vim.api.nvim_set_current_win(target_window)
+    vim.cmd("diffoff")
+  end
+
+  M._resolve_diff_as_rejected(tab_name)
+end
+
 return M

lua/claudecode/init.lua

@@ -880,6 +880,21 @@ function M._create_commands()
       "Terminal module not found. Terminal commands (ClaudeCode, ClaudeCodeOpen, ClaudeCodeClose) not registered."
     )
   end
+
+  -- Diff management commands
+  vim.api.nvim_create_user_command("ClaudeCodeDiffAccept", function()
+    local diff = require("claudecode.diff")
+    diff.accept_current_diff()
+  end, {
+    desc = "Accept the current diff changes",
+  })
+
+  vim.api.nvim_create_user_command("ClaudeCodeDiffDeny", function()
+    local diff = require("claudecode.diff")
+    diff.deny_current_diff()
+  end, {
+    desc = "Deny/reject the current diff changes",
+  })
 end
 
 --- Get version information

tests/mocks/vim.lua

@@ -582,6 +582,25 @@ local vim = {
     end,
   }),
 
+  b = setmetatable({}, {
+    __index = function(_, bufnr)
+      -- Return buffer-local variables for the given buffer
+      if vim._buffers[bufnr] then
+        if not vim._buffers[bufnr].b_vars then
+          vim._buffers[bufnr].b_vars = {}
+        end
+        return vim._buffers[bufnr].b_vars
+      end
+      return {}
+    end,
+    __newindex = function(_, bufnr, vars)
+      -- Set buffer-local variables for the given buffer
+      if vim._buffers[bufnr] then
+        vim._buffers[bufnr].b_vars = vars
+      end
+    end,
+  }),
+
   deepcopy = function(tbl)
     if type(tbl) ~= "table" then
       return tbl