bunnyhop.nvim

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🐇 Hop around your code at lightning speed ⚡️

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# bunnyhop.nvim
Hop across your code at lightning speed ⚡️⚡️⚡️

> [!Note]
> This plugin is in alpha version, expect bugs, lacking features and documentation.
> If you found a bug, reporting it would be appriciated, while fixing it via a pull request would be greatly appriciated.

## Features

#### Supports Copilot and Hugging Face LLM's

#### Predicts your next desired cursor position a preview window, allowing you to hop to it via your chosen keybinding.

![bhop_feat_1](https://github.com/user-attachments/assets/2d25d126-ce59-4566-a5ee-6eaa78390dd0)

## Installation

### Prerequisites

Curl and its cli are required as they are used for performing http requests to the different LLM providers.

Either Copilot(Recommenced) or Hugging Face's [Serverless](https://huggingface.co/docs/api-inference/en/index).
- For Copilot, you only need to set it up via [copilot.lua](https://github.com/zbirenbaum/copilot.lua) or [copilot.vim](https://github.com/github/copilot.vim).
- For Hugging Face, an API key is required. Learn how to set it up [here](https://huggingface.co/docs/api-inference/en/getting-started). Once you have the API key, create an enviornment variable for the key, eg. `export HF_API_KEY=************`.

### [lazy.nvim](https://github.com/folke/lazy.nvim)

```lua
{
    "PLAZMAMA/bunnyhop.nvim",
    lazy = false, -- This plugin does not support lazy loading for now
    -- Setting the keybinding for hopping to the predicted location.
    -- Change it to whatever suits you.
    keys = {
        {
            "<C-h>",
            function()
                require("bunnyhop").hop()
            end,
            desc = "[H]op to predicted location.",
        },
    },
    opts = {
        -- Currently the only options are "copilot" and "huggingface"
        adapter = "copilot",
        -- Model to use for chosen provider.
        -- To know what models are available for chosen adapter,
        -- run `:lua require("bunnyhop.adapters.{adapter}").get_models()`
        model = "gpt-4o-2024-08-06",
        -- Copilot doesn't use the API key.
        --Hugging Face does and its stored in an enviornment variable.
        -- Example where `HF_API_KEY` is the name of the enviornment variable:
        -- `api_key = "HF_API_KEY"`
        api_key = "",
        -- Max width the preview window will be.
        -- Here for if you want to make the preview window bigger/smaller.
        max_prev_width = 20,
        -- This is an option to enable LOCAL data collection.
        -- Can be used to assess the accuracy of the predictions and will be used for better context creation.
        -- Currently its disabled by default to respect user privacy but will be required later for better performance and planned advanced features.
        collect_data = false,
    },
},
```

## Configuration

Bunnyhop is configured via the setup() function. The default configuration values can be found [here](lua/bunnyhop/init.lua).

## Development

### Run tests

Running tests requires either

- [luarocks][luarocks]
- or [busted][busted] and [nlua][nlua]

to be installed[^1].
[^1]: The test suite assumes that `nlua` has
      been added to the PATH.

You can then run:

```bash
luarocks test --local
# or
busted
```

Or if you want to run a single test file:

```bash
luarocks test spec/path_to_file.lua --local
# or
busted spec/path_to_file.lua
```

### Common Errors

If you encounter the `module 'busted.runner' not found`
or `pl.path requires LuaFileSystem` errors, fix it by
runing the following command the following command:

```bash
eval $(luarocks path --no-bin)
```

If you encounter `sh: nlua: command not found` error the error above occurs do[^1]:

#### Linux/Mac

Run the following command:
```bash
export PATH=$PATH:~/.luarocks/bin
```

#### Windows

See the following guide to a variable to the PATH: [add to PATH][add-env-vars-windows].

> [!Note]
> For local testing to work you need to have Lua 5.1 set as your default version for
> luarocks. If that's not the case you can pass `--lua-version 5.1` to all the
> luarocks commands above, or set lua version 5.1 globally by running
> `luarocks config --scope system lua_version 5.1`.

## Acknowledgments
- Thank you [Oli Morris](https://github.com/olimorris) for encoraging me to make this plugin.
- [Cursor](https://github.com/getcursor/cursor) for the inspiration for this plugin.

[rockspec-format]: https://github.com/luarocks/luarocks/wiki/Rockspec-format
[luarocks]: https://luarocks.org
[luarocks-api-key]: https://luarocks.org/settings/api-keys
[gh-actions-secrets]: https://docs.github.com/en/actions/security-guides/encrypted-secrets#creating-encrypted-secrets-for-a-repository
[busted]: https://lunarmodules.github.io/busted/
[nlua]: https://github.com/mfussenegger/nlua
[use-this-template]: https://github.com/new?template_name=nvim-lua-plugin-template&template_owner=nvim-lua
[add-env-vars-windows]: https://answers.microsoft.com/en-us/windows/forum/all/adding-path-variable/97300613-20cb-4d85-8d0e-cc9d3549ba23

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