Full diff having issues with slightly offset lines

[hhoeflin]

I have been using the plugin for a little while and really like it. However in full_diff mode, there are issues with slightly offset lines. The actual lines mentioned in the copilot-chat itself are correct

Here for example, the chat itself states

[file:src/kanbanmark/tags.py](src/kanbanmark/tags.py) line:170-170

```python
def process_list_item(event_it: peekable[tuple[Event, Range]], depth: int = 0) -> ListItemBlock:
```

and is at the correct line, but the diff shows up at line 171.

When applying the patches separately, they are applied to the correct line.

[jamwil]

Deleted my prior comment as inaccurate. I'm unsure if this is related to the model choice, but I can say I experience this intermittently with mostly default settings:

    {
      "CopilotC-Nvim/CopilotChat.nvim",
      dependencies = {
        { "zbirenbaum/copilot.lua" },
        { "nvim-lua/plenary.nvim", branch = "master" },
      },
      cmd = { "CopilotChat", "CopilotChatOpen" },
      event = "InsertEnter",
      opts = {
        chat_autocomplete = true,
        window = {
          width = 0.4,
        },
        selection = function(source)
          local select = require("CopilotChat.select")
          return select.visual(source) or select.buffer(source)
        end,
      },
      keys = {
        { "<leader>ll", "<cmd>CopilotChatOpen<CR>", "n" },
        { "<leader>ll", "<cmd>CopilotChatOpen<CR>", "v" },
      },
    },

[jamwil]

@jellydn This is not an enhancement, it's a bug. I am finding that I don't see it much or at all with rust code, but with python code it happens all the time. Perhaps the curly braces help clarify the code boundaries.

[stonemaster]

I can confirm issues as well on Dart as well Rust code. I have to adjust the inserted or changed code several times when a file has several chunks of changes.

[jamwil]

I ended up switching to aider. There are instructions in the docs for connecting to the same copilot endpoint.

[stonemaster]

Thanks for the tip. I'll give it a try as it looks promising. I love this plugin though and its tight integration with NVIM :-)

[hhoeflin]

For external tools there is also sst/opencode and charmbracelet/crush.

[deathbeam]

If you just want automated edits then you can also try the mcphub.nvim integration. This plugin only have diffs built in but all those tools just do auto edits mcphub @neovim tool group should give you what you want

[deathbeam]

Btw i actually found some issues with full diff so i think I might at least have improvement now

[deathbeam]

Ok #1329 is merged, that should improve this by a bit

[deathbeam]

Closing this as after #1329 this should be improved significantly and there is only so much that can be done when LLM is hallucinating with diff-style views, alternatives are find/replace operations that stuff like mcphub built in editor uses and this plugin supports