Gp (GPT prompt) plugin for Neovim

Gp.nvim provides you ChatGPT like sessions and instructable text/code operations in your favorite editor.

Here is an older 5 minute example of using the plugin (needs update)

Goals and Features

The goal is to extend Neovim with the power of GPT models in a simple unobtrusive extensible way.
Trying to keep things as native as possible - reusing and integrating well with the natural features of (Neo)vim.

Streaming responses
- no spinner wheel and waiting for the full answer
- response generation can be canceled half way through
- properly working undo (response can be undone with a single u)
Infinitely extensible via hook functions specified as part of the config
- hooks have access to everything in the plugin and are automatically registered as commands
- see Configuration and Extend functionality sections for details
Minimum dependencies (neovim, curl, grep and optionally sox)
- zero dependencies on other lua plugins to minimize chance of breakage
ChatGPT like sessions
- just good old neovim buffers formated as markdown with autosave and few buffer bound shortcuts
- last chat also quickly accessible via toggable popup window
- chat finder - management popup for searching, previewing, deleting and opening chat sessions
Instructable text/code operations
- templating mechanism to combine user instructions, selections etc into the gpt query
- multimodal - same command works for normal/insert mode, with selection or a range
- many possible output targets - rewrite, prepend, append, new buffer, popup
- non interactive command mode available for common repetitive tasks implementable as simple hooks
  (explain something in a popup window, write unit tests for selected code into a new buffer,
  finish selected code based on comments in it, etc.)
- custom instructions per repository with .gp.md file
  (instruct gpt to generate code using certain libs, packages, conventions and so on)
Speech to text support
- a mouth is 2-4x faster than fingers when it comes to outputting words - use it where it makes sense
  (dicating comments and notes, asking gpt questions, giving instructions for code operations, ..)

Install

1. Install the plugin with your preferred package manager:

-- lazy.nvim
{
	"robitx/gp.nvim",
	config = function()
		require("gp").setup()

		-- or setup with your own config (see Install > Configuration in Readme)
		-- require("gp").setup(conf)

        	-- shortcuts might be setup here (see Usage > Shortcuts in Readme)
	end,
}

-- packer.nvim
use({
    "robitx/gp.nvim",
    config = function()
        require("gp").setup()

	-- or setup with your own config (see Install > Configuration in Readme)
	-- require("gp").setup(conf)

        -- shortcuts might be setup here (see Usage > Shortcuts in Readme)
    end,
})

2. OpenAI API key

Make sure you have OpenAI API key. Get one here and use it in the config (or setup env OPENAI_API_KEY).

Also consider setting up usage limits so you won't get suprised at the end of the month.

3. Dependencies

The core plugin only needs curl installed to make calls to OpenAI API and grep for ChatFinder. So Linux, BSD and Mac OS should be covered.

Voice commands (:GpWhisper*) depend on SoX (Sound eXchange) to handle audio recording and processing:

Mac OS: brew install sox
Ubuntu/Debian: apt-get install sox
Arch Linux: pacman -S sox
Redhat/CentOS: yum install sox
NixOS: nix-env -i sox

4. Configuration

Here are the default values:

local conf = {
	-- required openai api key
	openai_api_key = os.getenv("OPENAI_API_KEY"),
	-- api endpoint (you can change this to azure endpoint)
	openai_api_endpoint = "https://api.openai.com/v1/chat/completions",
	-- openai_api_endpoint = "https://$URL.openai.azure.com/openai/deployments/{{model}}/chat/completions?api-version=2023-03-15-preview",
	-- prefix for all commands
	cmd_prefix = "Gp",
	-- optional curl parameters (for proxy, etc.)
	-- curl_params = { "--proxy", "http://X.X.X.X:XXXX" }
	curl_params = {},

	-- directory for storing chat files
	chat_dir = vim.fn.stdpath("data"):gsub("/$", "") .. "/gp/chats",
	-- chat model (string with model name or table with model name and parameters)
	chat_model = { model = "gpt-4", temperature = 1.1, top_p = 1 },
	-- chat model system prompt (use this to specify the persona/role of the AI)
	chat_system_prompt = "You are a general AI assistant.",
	-- chat custom instructions (not visible in the chat but prepended to model prompt)
	chat_custom_instructions = "The user provided the additional info about how they would like you to respond:\n\n"
		.. "- If you're unsure don't guess and say you don't know instead.\n"
		.. "- Ask question if you need clarification to provide better answer.\n"
		.. "- Think deeply and carefully from first principles step by step.\n"
		.. "- Zoom out first to see the big picture and then zoom in to details.\n"
		.. "- Use Socratic method to improve your thinking and coding skills.\n"
		.. "- Don't elide any code from your output if the answer requires coding.\n"
		.. "- Take a deep breath; You've got this!\n",
	-- chat user prompt prefix
	chat_user_prefix = "🗨:",
	-- chat assistant prompt prefix
	chat_assistant_prefix = "🤖:",
	-- chat topic generation prompt
	chat_topic_gen_prompt = "Summarize the topic of our conversation above"
		.. " in two or three words. Respond only with those words.",
	-- chat topic model (string with model name or table with model name and parameters)
	chat_topic_gen_model = "gpt-3.5-turbo-16k",
	-- explicitly confirm deletion of a chat file
	chat_confirm_delete = true,
	-- conceal model parameters in chat
	chat_conceal_model_params = true,
	-- local shortcuts bound to the chat buffer
	-- (be careful to choose something which will work across specified modes)
	chat_shortcut_respond = { modes = { "n", "i", "v", "x" }, shortcut = "<C-g><C-g>" },
	chat_shortcut_delete = { modes = { "n", "i", "v", "x" }, shortcut = "<C-g>d" },
	chat_shortcut_new = { modes = { "n", "i", "v", "x" }, shortcut = "<C-g>n" },
	-- default search term when using :GpChatFinder
	chat_finder_pattern = "topic ",

	-- command config and templates bellow are used by commands like GpRewrite, GpEnew, etc.
	-- command prompt prefix for asking user for input
	command_prompt_prefix = "🤖 ~ ",
	-- command model (string with model name or table with model name and parameters)
	command_model = { model = "gpt-4", temperature = 1.1, top_p = 1 },
	-- command system prompt
	command_system_prompt = "You are an AI working as code editor.\n\n"
		.. "Please AVOID COMMENTARY OUTSIDE OF SNIPPET RESPONSE.\n"
		.. "Start and end your answer with:\n\n```",
	-- auto select command response (easier chaining of commands)
	command_auto_select_response = true,

	-- templates
	template_selection = "I have the following code from {{filename}}:"
		.. "\n\n```{{filetype}}\n{{selection}}\n```\n\n{{command}}",
	template_rewrite = "I have the following code from {{filename}}:"
		.. "\n\n```{{filetype}}\n{{selection}}\n```\n\n{{command}}"
		.. "\n\nRespond exclusively with the snippet that should replace the code above.",
	template_append = "I have the following code from {{filename}}:"
		.. "\n\n```{{filetype}}\n{{selection}}\n```\n\n{{command}}"
		.. "\n\nRespond exclusively with the snippet that should be appended after the code above.",
	template_prepend = "I have the following code from {{filename}}:"
		.. "\n\n```{{filetype}}\n{{selection}}\n```\n\n{{command}}"
		.. "\n\nRespond exclusively with the snippet that should be prepended before the code above.",
	template_command = "{{command}}",

	-- https://platform.openai.com/docs/guides/speech-to-text/quickstart
	-- Whisper costs $0.006 / minute (rounded to the nearest second)
	-- by eliminating silence and speeding up the tempo of the recording
	-- we can reduce the cost by 50% or more and get the results faster
	-- directory for storing whisper files
	whisper_dir = "/tmp/gp_whisper",
	-- multiplier of RMS level dB for threshold used by sox to detect silence vs speech
	-- decibels are negative, the recording is normalized to -3dB =>
	-- increase this number to pick up more (weaker) sounds as possible speech
	-- decrease this number to pick up only louder sounds as possible speech
	-- you can disable silence trimming by setting this a very high number (like 1000.0)
	whisper_silence = "1.75",
	-- whisper max recording time (mm:ss)
	whisper_max_time = "05:00",
	-- whisper tempo (1.0 is normal speed)
	whisper_tempo = "1.75",

	-- example hook functions (see Extend functionality section in the README)
	hooks = {
		InspectPlugin = function(plugin, params)
			print(string.format("Plugin structure:\n%s", vim.inspect(plugin)))
			print(string.format("Command params:\n%s", vim.inspect(params)))
		end,

		-- GpImplement rewrites the provided selection/range based on comments in the code
		Implement = function(gp, params)
			local template = "Having following from {{filename}}:\n\n"
				.. "```{{filetype}}\n{{selection}}\n```\n\n"
				.. "Please rewrite this code according to the comment instructions."
				.. "\n\nRespond only with the snippet of finalized code:"

			gp.Prompt(
				params,
				gp.Target.rewrite,
				nil, -- command will run directly without any prompting for user input
				gp.config.command_model,
				template,
				gp.config.command_system_prompt
			)
		end,

		-- your own functions can go here, see README for more examples like
		-- :GpExplain, :GpUnitTests.., :GpBetterChatNew, ..

	},
}

...

-- call setup on your config
require("gp").setup(conf)

-- shortcuts might be setup here (see Usage > Shortcuts in Readme)

Usage

Commands

Have ChatGPT experience directly in neovim:
- :GpChatNew - open fresh chat in the current window
  (either empty or with the visual selection or specified range as a context)
- :GpChatPaste - paste the selection or specified range to the latest chat (simplifies adding code from multiple files into a single chat buffer)
- :GpChatToggle - open chat in toggleable popup window
  (the last active chat or a fresh one with selection or a range as a context)
- :GpChatFinder - open a dialog to search through chats
- :GpChatRespond - request new gpt response for the current chat
- :GpChatRespond N - request new gpt response with only last N messages as a context
  (using everything from the end up to Nth instance of 🗨:.. => N=1 is like asking a question in a new chat)
- :GpChatDelete - delete the current chat
when calling :GpChatNew or :GpChatPaste you can also specify where to display chat using subcommands:
Ask GPT and get response to the specified output:
- :GpRewrite - answer replaces the current line, visual selection or range
- :GpAppend - answers after the current line, visual selection or range
- :GpPrepend - answers before the current line, selection or range
- :GpEnew - answers into new buffer
- :GpPopup - answers into pop up window
- :GpImplement - default example hook command for finishing the code
  based on comments provided in visual selection or specified range
all these command work either:
- as pure user commands without any other context in normal/insert mode
- with current selection (using whole lines) as a context in visual/Visual mode
- with specified range (such as % for the entire current buffer => :%GpRewrite)
Voice commands transcribed by Whisper API:
- :GpWhisper - transcription replaces the current line, visual selection or range
- :GpWhisperRewrite - answer replaces the current line, visual selection or range
- :GpWhisperAppend - answers after the current line, visual selection or range
- :GpWhisperPrepend - answers before the current line, selection or range
- :GpWhisperEnew - answers into new buffer
- :GpWhisperPopup - answers into pop up window
To stop the stream of currently running gpt response you can use :GpStop
Run your own custom hook commands:
- :GpInspectPlugin - inspect GPT prompt plugin object

GpDone autocommand to run consequent actions

Commands like GpRewrite, GpAppend etc. run asynchronously and generate event GpDone, so you can define autocmd (like auto formating) to run when gp finishes:

    vim.api.nvim_create_autocmd({ "User" }, {
        pattern = {"GpDone"},
        callback = function(event)
            print("event fired:\n", vim.inspect(event))
            -- local b = event.buf
            -- DO something
        end,
    })

Custom instructions per repository

You can make .gp.md (markdown) file in a root of a repository and commands such as :GpRewrite, :GpAppend will respect instructions provided in this file (works better with gpt4, gpt 3.5 doesn't always listen to system commands). For example:

Use ‎C++17.
Use Testify library when writing Go tests.
Use Early return/Guard Clauses pattern to avoid excessive nesting.
...

Scripting and multifile edits

GpDone event + .gp.md custom instructions provide a possibility to run gp.nvim using headless (neo)vim from terminal or shell script. So you can let gp run edits accross many files if you put it in a loop.

test file:

.gp.md file:

If user says hello, please respond with:

```
Ahoy there!
```

calling gp.nvim from terminal/script:

register autocommand to save and quit nvim when Gp is done
second jumps to occurrence of something I want to rewrite/append/prepend to (in this case number 3)
selecting the line
calling gp.nvim acction

$ nvim --headless -c "autocmd User GpDone wq" -c "/3" -c "normal V" -c "GpAppend hello there"  test

resulting test file:

1
2
3
Ahoy there!
4
5

Shortcuts

There are no default global shortcuts to mess with your own config. Bellow are examples for you to adjust or just use directly.

Native

You can use the good old vim.keymap.set and paste the following after require("gp").setup(conf) call (or anywhere you keep shortcuts if you want them at one place).

local function keymapOptions(desc)
    return {
        noremap = true,
        silent = true,
        nowait = true,
        desc = "GPT prompt " .. desc,
    }
end

-- Chat commands
vim.keymap.set({"n", "i"}, "<C-g>c", "<cmd>GpChatNew<cr>", keymapOptions("New Chat"))
vim.keymap.set({"n", "i"}, "<C-g>t", "<cmd>GpChatToggle<cr>", keymapOptions("Toggle Popup Chat"))
vim.keymap.set({"n", "i"}, "<C-g>f", "<cmd>GpChatFinder<cr>", keymapOptions("Chat Finder"))

vim.keymap.set("v", "<C-g>c", ":<C-u>'<,'>GpChatNew<cr>", keymapOptions("Visual Chat New"))
vim.keymap.set("v", "<C-g>v", ":<C-u>'<,'>GpChatPaste<cr>", keymapOptions("Visual Chat Paste"))
vim.keymap.set("v", "<C-g>t", ":<C-u>'<,'>GpChatToggle<cr>", keymapOptions("Visual Popup Chat"))

vim.keymap.set({ "n", "i" }, "<C-g><C-x>", "<cmd>GpChatNew split<cr>", keymapOptions("New Chat split"))
vim.keymap.set({ "n", "i" }, "<C-g><C-v>", "<cmd>GpChatNew vsplit<cr>", keymapOptions("New Chat vsplit"))
vim.keymap.set({ "n", "i" }, "<C-g><C-t>", "<cmd>GpChatNew tabnew<cr>", keymapOptions("New Chat tabnew"))

vim.keymap.set("v", "<C-g><C-x>", ":<C-u>'<,'>GpChatNew split<cr>", keymapOptions("Visual Chat New split"))
vim.keymap.set("v", "<C-g><C-v>", ":<C-u>'<,'>GpChatNew vsplit<cr>", keymapOptions("Visual Chat New vsplit"))
vim.keymap.set("v", "<C-g><C-t>", ":<C-u>'<,'>GpChatNew tabnew<cr>", keymapOptions("Visual Chat New tabnew"))

-- Prompt commands
vim.keymap.set({"n", "i"}, "<C-g>r", "<cmd>GpRewrite<cr>", keymapOptions("Inline Rewrite"))
vim.keymap.set({"n", "i"}, "<C-g>a", "<cmd>GpAppend<cr>", keymapOptions("Append"))
vim.keymap.set({"n", "i"}, "<C-g>b", "<cmd>GpPrepend<cr>", keymapOptions("Prepend"))
vim.keymap.set({"n", "i"}, "<C-g>e", "<cmd>GpEnew<cr>", keymapOptions("Enew"))
vim.keymap.set({"n", "i"}, "<C-g>p", "<cmd>GpPopup<cr>", keymapOptions("Popup"))

vim.keymap.set("v", "<C-g>r", ":<C-u>'<,'>GpRewrite<cr>", keymapOptions("Visual Rewrite"))
vim.keymap.set("v", "<C-g>a", ":<C-u>'<,'>GpAppend<cr>", keymapOptions("Visual Append"))
vim.keymap.set("v", "<C-g>b", ":<C-u>'<,'>GpPrepend<cr>", keymapOptions("Visual Prepend"))
vim.keymap.set("v", "<C-g>e", ":<C-u>'<,'>GpEnew<cr>", keymapOptions("Visual Enew"))
vim.keymap.set("v", "<C-g>p", ":<C-u>'<,'>GpPopup<cr>", keymapOptions("Visual Popup"))


vim.keymap.set({"n", "i", "v", "x"}, "<C-g>s", "<cmd>GpStop<cr>", keymapOptions("Stop"))


-- optional Whisper commands
vim.keymap.set({"n", "i"}, "<C-g>w", "<cmd>GpWhisper<cr>", keymapOptions("Whisper"))
vim.keymap.set({"n", "i"}, "<C-g>R", "<cmd>GpWhisperRewrite<cr>", keymapOptions("Inline Rewrite"))
vim.keymap.set({"n", "i"}, "<C-g>A", "<cmd>GpWhisperAppend<cr>", keymapOptions("Append"))
vim.keymap.set({"n", "i"}, "<C-g>B", "<cmd>GpWhisperPrepend<cr>", keymapOptions("Prepend"))
vim.keymap.set({"n", "i"}, "<C-g>E", "<cmd>GpWhisperEnew<cr>", keymapOptions("Enew"))
vim.keymap.set({"n", "i"}, "<C-g>P", "<cmd>GpWhisperPopup<cr>", keymapOptions("Popup"))

vim.keymap.set("v", "<C-g>w", ":<C-u>'<,'>GpWhisper<cr>", keymapOptions("Whisper"))
vim.keymap.set("v", "<C-g>R", ":<C-u>'<,'>GpWhisperRewrite<cr>", keymapOptions("Visual Rewrite"))
vim.keymap.set("v", "<C-g>A", ":<C-u>'<,'>GpWhisperAppend<cr>", keymapOptions("Visual Append"))
vim.keymap.set("v", "<C-g>B", ":<C-u>'<,'>GpWhisperPrepend<cr>", keymapOptions("Visual Prepend"))
vim.keymap.set("v", "<C-g>E", ":<C-u>'<,'>GpWhisperEnew<cr>", keymapOptions("Visual Enew"))
vim.keymap.set("v", "<C-g>P", ":<C-u>'<,'>GpWhisperPopup<cr>", keymapOptions("Visual Popup"))

Whichkey

Or go more fancy by using which-key.nvim plugin:

-- VISUAL mode mappings
-- s, x, v modes are handled the same way by which_key
require("which-key").register({
    -- ...
	["<C-g>"] = {
		c = { ":<C-u>'<,'>GpChatNew<cr>", "Visual Chat New" },
		v = { ":<C-u>'<,'>GpChatPaste<cr>", "Visual Chat Paste" },
		t = { ":<C-u>'<,'>GpChatToggle<cr>", "Visual Popup Chat" },

		["<C-x>"] = { ":'<,'>GpChatNew split<CR>", "Visual Chat New split" },
		["<C-v>"] = { ":'<,'>GpChatNew vsplit<CR>", "Visual Chat New vsplit" },
		["<C-t>"] = { ":'<,'>GpChatNew tabnew<CR>", "Visual Chat New tabnew" },

		r = { ":<C-u>'<,'>GpRewrite<cr>", "Visual Rewrite" },
		a = { ":<C-u>'<,'>GpAppend<cr>", "Visual Append" },
		b = { ":<C-u>'<,'>GpPrepend<cr>", "Visual Prepend" },
		e = { ":<C-u>'<,'>GpEnew<cr>", "Visual Enew" },
		p = { ":<C-u>'<,'>GpPopup<cr>", "Visual Popup" },
		s = { "<cmd>GpStop<cr>", "Stop" },


                -- optional Whisper commands
		w = { ":<C-u>'<,'>GpWhisper<cr>", "Whisper" },
		R = { ":<C-u>'<,'>GpWhisperRewrite<cr>", "Whisper Visual Rewrite" },
		A = { ":<C-u>'<,'>GpWhisperAppend<cr>", "Whisper Visual Append" },
		B = { ":<C-u>'<,'>GpWhisperPrepend<cr>", "Whisper Visual Prepend" },
		E = { ":<C-u>'<,'>GpWhisperEnew<cr>", "Whisper Visual Enew" },
		P = { ":<C-u>'<,'>GpWhisperPopup<cr>", "Whisper Visual Popup" },
	},
    -- ...
}, {
	mode = "v", -- VISUAL mode
	prefix = "",
	buffer = nil,
	silent = true,
	noremap = true,
	nowait = true,
})

-- NORMAL mode mappings
require("which-key").register({
    -- ...
	["<C-g>"] = {
		c = { "<cmd>GpChatNew<cr>", "New Chat" },
		t = { "<cmd>GpChatToggle<cr>", "Toggle Popup Chat" },
		f = { "<cmd>GpChatFinder<cr>", "Chat Finder" },

		["<C-x>"] = { "<cmd>GpChatNew split<cr>", "New Chat split" },
		["<C-v>"] = { "<cmd>GpChatNew vsplit<cr>", "New Chat vsplit" },
		["<C-t>"] = { "<cmd>GpChatNew tabnew<cr>", "New Chat tabnew" },

		r = { "<cmd>GpRewrite<cr>", "Inline Rewrite" },
		a = { "<cmd>GpAppend<cr>", "Append" },
		b = { "<cmd>GpPrepend<cr>", "Prepend" },
		e = { "<cmd>GpEnew<cr>", "Enew" },
		p = { "<cmd>GpPopup<cr>", "Popup" },
		s = { "<cmd>GpStop<cr>", "Stop" },

                -- optional Whisper commands
		w = { "<cmd>GpWhisper<cr>", "Whisper" },
		R = { "<cmd>GpWhisperRewrite<cr>", "Whisper Inline Rewrite" },
		A = { "<cmd>GpWhisperAppend<cr>", "Whisper Append" },
		B = { "<cmd>GpWhisperPrepend<cr>", "Whisper Prepend" },
		E = { "<cmd>GpWhisperEnew<cr>", "Whisper Enew" },
		P = { "<cmd>GpWhisperPopup<cr>", "Whisper Popup" },
	},
    -- ...
}, {
	mode = "n", -- NORMAL mode
	prefix = "",
	buffer = nil,
	silent = true,
	noremap = true,
	nowait = true,
})

-- INSERT mode mappings
require("which-key").register({
    -- ...
	["<C-g>"] = {
		c = { "<cmd>GpChatNew<cr>", "New Chat" },
		t = { "<cmd>GpChatToggle<cr>", "Toggle Popup Chat" },
		f = { "<cmd>GpChatFinder<cr>", "Chat Finder" },

		["<C-x>"] = { "<cmd>GpChatNew split<cr>", "New Chat split" },
		["<C-v>"] = { "<cmd>GpChatNew vsplit<cr>", "New Chat vsplit" },
		["<C-t>"] = { "<cmd>GpChatNew tabnew<cr>", "New Chat tabnew" },

		r = { "<cmd>GpRewrite<cr>", "Inline Rewrite" },
		a = { "<cmd>GpAppend<cr>", "Append" },
		b = { "<cmd>GpPrepend<cr>", "Prepend" },
		e = { "<cmd>GpEnew<cr>", "Enew" },
		p = { "<cmd>GpPopup<cr>", "Popup" },
		s = { "<cmd>GpStop<cr>", "Stop" },

                -- optional Whisper commands
		w = { "<cmd>GpWhisper<cr>", "Whisper" },
		R = { "<cmd>GpWhisperRewrite<cr>", "Whisper Inline Rewrite" },
		A = { "<cmd>GpWhisperAppend<cr>", "Whisper Append" },
		B = { "<cmd>GpWhisperPrepend<cr>", "Whisper Prepend" },
		E = { "<cmd>GpWhisperEnew<cr>", "Whisper Enew" },
		P = { "<cmd>GpWhisperPopup<cr>", "Whisper Popup" },
	},
    -- ...
}, {
	mode = "i", -- INSERT mode
	prefix = "",
	buffer = nil,
	silent = true,
	noremap = true,
	nowait = true,
})

Extend functionality

You can extend/override the plugin functionality with your own, by putting functions into config.hooks. Hooks have access to everything (see InspectPlugin example in defaults) and are automatically registered as commands (GpInspectPlugin).

Here are some more examples:

:GpUnitTests

-- example of adding command which writes unit tests for the selected code
UnitTests = function(gp, params)
    local template = "I have the following code from {{filename}}:\n\n"
        .. "```{{filetype}}\n{{selection}}\n```\n\n"
        .. "Please respond by writing table driven unit tests for the code above."
    gp.Prompt(params, gp.Target.enew, nil, gp.config.command_model,
        template, gp.config.command_system_prompt)
end,

:GpExplain

-- example of adding command which explains the selected code
Explain = function(gp, params)
    local template = "I have the following code from {{filename}}:\n\n"
        .. "```{{filetype}}\n{{selection}}\n```\n\n"
        .. "Please respond by explaining the code above."
    gp.Prompt(params, gp.Target.popup, nil, gp.config.command_model,
        template, gp.config.chat_system_prompt)
end,

:GpCodeReview

-- example of usig enew as a function specifying type for the new buffer
CodeReview = function(gp, params)
    local template = "I have the following code from {{filename}}:\n\n"
        .. "```{{filetype}}\n{{selection}}\n```\n\n"
        .. "Please analyze for code smells and suggest improvements."
        gp.Prompt(params, gp.Target.enew("markdown"), nil, gp.config.command_model,
            template, gp.config.command_system_prompt)
    end

:GpBufferChatNew

-- example of making :%GpChatNew a dedicated command which
-- opens new chat with the entire current buffer as a context
BufferChatNew = function(gp, _)
    -- call GpChatNew command in range mode on whole buffer
    vim.api.nvim_command("%" .. gp.config.cmd_prefix .. "ChatNew")
end,

:GpBetterChatNew

-- example of adding a custom chat command with non-default parameters
-- (configured default might be gpt-3 and sometimes you might want to use gpt-4)
BetterChatNew = function(gp, params)
    local chat_model = { model = "gpt-4", temperature = 0.7, top_p = 1 }
    local chat_system_prompt = "You are a general AI assistant."
    gp.cmd.ChatNew(params, chat_model, chat_system_prompt)
end,

The raw plugin text editing method Prompt has seven aprameters:

params is a table passed to neovim user commands, Prompt currently uses:

range, line1, line2 to work with ranges
args so instructions can be passed directly after command (:GpRewrite something something)

params = {
      args = "",
      bang = false,
      count = -1,
      fargs = {},
      line1 = 1352,
      line2 = 1352,
      mods = "",
      name = "GpChatNew",
      range = 0,
      reg = "",
      smods = {
            browse = false,
            confirm = false,
            emsg_silent = false,
            hide = false,
            horizontal = false,
            keepalt = false,
            keepjumps = false,
            keepmarks = false,
            keeppatterns = false,
            lockmarks = false,
            noautocmd = false,
            noswapfile = false,
            sandbox = false,
            silent = false,
            split = "",
            tab = -1,
            unsilent = false,
            verbose = -1,
            vertical = false
      }
}

target specifying where to direct GPT response

enew can be used as a function so you can pass in a filetype for the new buffer (enew/enew()/enew("markdown")/..)

M.Target = {
    rewrite = 0, -- for replacing the selection, range or the current line
    append = 1, -- for appending after the selection, range or the current line
    prepend = 2, -- for prepending before the selection, range or the current line
    popup = 3, -- for writing into the popup window

    -- for writing into a new buffer
    ---@param filetype nil | string # nil = same as the original buffer
    ---@return table # a table with type=4 and filetype=filetype
    enew = function(filetype)
        return { type = 4, filetype = filetype }
    end,
}

prompt
- string used similarly as bash/zsh prompt in terminal, when plugin asks for user command to gpt.
- if nil, user is not asked to provide input (for specific predefined commands - document this, explain that, write tests ..)
- simple 🤖 ~ might be used or you could use different msg to convey info about the method which is called
  (🤖 rewrite ~, 🤖 popup ~, 🤖 enew ~, 🤖 inline ~, etc.)
model
- see gpt model overview
template
- template of the user message send to gpt
- string can include variables bellow:
  
  name Description
  
  {{filetype}} filetype of the current buffer
  
  {{selection}} last or currently selected text
  
  {{command}} instructions provided by the user
system_template
- See gpt api intro
whisper
- optional string serving as a default for input prompt (for example generated from speech by Whisper)

Name		Name	Last commit message	Last commit date
Latest commit History 157 Commits
.github		.github
lua/gp		lua/gp
LICENSE		LICENSE
README.md		README.md

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Gp (GPT prompt) plugin for Neovim

Here is an older 5 minute example of using the plugin (needs update)

Goals and Features

Install

1. Install the plugin with your preferred package manager:

2. OpenAI API key

3. Dependencies

4. Configuration

Usage

Commands

GpDone autocommand to run consequent actions

Custom instructions per repository

Scripting and multifile edits

Shortcuts

Native

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name	Description
`{{filetype}}`	filetype of the current buffer
`{{selection}}`	last or currently selected text
`{{command}}`	instructions provided by the user

License

huynle/gp.nvim

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Gp (GPT prompt) plugin for Neovim

Here is an older 5 minute example of using the plugin (needs update)

Goals and Features

Install

1. Install the plugin with your preferred package manager:

2. OpenAI API key

3. Dependencies

4. Configuration

Usage

Commands

GpDone autocommand to run consequent actions

Custom instructions per repository

Scripting and multifile edits

Shortcuts

Native

Whichkey

Extend functionality

About

Resources

License

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