teocns / CopilotChat.nvim

Chat with GitHub Copilot in Neovim

Copilot Chat for Neovim

Authentication

It will prompt you with instructions on your first start. If you already have Copilot.vim or Copilot.lua, it will work automatically.

Installation

Lazy.nvim

1. pip install python-dotenv requests pynvim==0.5.0 prompt-toolkit
2. Put it in your lazy setup

return {
  {
    "jellydn/CopilotChat.nvim",
    opts = {
      mode = "split", -- newbuffer or split  , default: newbuffer
    },
    build = function()
      vim.defer_fn(function()
        vim.cmd("UpdateRemotePlugins")
        vim.notify("CopilotChat - Updated remote plugins. Please restart Neovim.")
      end, 3000)
    end,
    event = "VeryLazy",
    keys = {
      { "<leader>cce", "<cmd>CopilotChatExplain<cr>", desc = "CopilotChat - Explain code" },
      { "<leader>cct", "<cmd>CopilotChatTests<cr>", desc = "CopilotChat - Generate tests" },
    },
  },
}

3. Run :UpdateRemotePlugins
4. Restart neovim

Manual

1. Put the files in the right place

$ git clone https://github.com/gptlang/CopilotChat.nvim
$ cd CopilotChat.nvim
$ cp -r --backup=nil rplugin ~/.config/nvim/

2. Install dependencies

$ pip install -r requirements.txt

3. Open up Neovim and run :UpdateRemotePlugins
4. Restart Neovim

Usage

Configuration

You have the ability to tailor this plugin to your specific needs using the configuration options outlined below:

{
  debug = false, -- Enable or disable debug mode
  prompts = { -- Set dynamic prompts for CopilotChat commands
    Explain = 'Explain how it works.',
    Tests = 'Briefly explain how the selected code works, then generate unit tests.',
  }
}

You have the capability to expand the prompts to create more versatile commands:

return {
    "jellydn/CopilotChat.nvim",
    opts = {
      mode = "split",
      prompts = {
        Explain = "Explain how it works.",
        Review = "Review the following code and provide concise suggestions.",
        Tests = "Briefly explain how the selected code works, then generate unit tests.",
        Refactor = "Refactor the code to improve clarity and readability.",
      },
    },
    build = function()
      vim.defer_fn(function()
        vim.cmd("UpdateRemotePlugins")
        vim.notify("CopilotChat - Updated remote plugins. Please restart Neovim.")
      end, 3000)
    end,
    event = "VeryLazy",
    keys = {
      { "<leader>cce", "<cmd>CopilotChatExplain<cr>", desc = "CopilotChat - Explain code" },
      { "<leader>cct", "<cmd>CopilotChatTests<cr>", desc = "CopilotChat - Generate tests" },
      { "<leader>ccr", "<cmd>CopilotChatReview<cr>", desc = "CopilotChat - Review code" },
      { "<leader>ccR", "<cmd>CopilotChatRefactor<cr>", desc = "CopilotChat - Refactor code" },
    }
}

For further reference, you can view my configuration.

Chat with Github Copilot

1. Copy some code into the unnamed register using the y command.
2. Run the command :CopilotChat followed by your question. For example, :CopilotChat What does this code do?

Code Explanation

1. Copy some code into the unnamed register using the y command.
2. Run the command :CopilotChatExplain.

Generate Tests

1. Copy some code into the unnamed register using the y command.
2. Run the command :CopilotChatTests.

Roadmap

• Translation to pure Lua
• Tokenizer
• Use vector encodings to automatically select code
• Sub commands - See issue #5