Files
lsp-ai/src/config.rs
2024-05-19 15:22:51 -07:00

342 lines
9.8 KiB
Rust

use anyhow::{Context, Result};
use serde::{Deserialize, Serialize};
use serde_json::Value;
use std::collections::HashMap;
pub type Kwargs = HashMap<String, Value>;
#[derive(Debug, Clone, Deserialize)]
pub enum ValidMemoryBackend {
#[serde(rename = "file_store")]
FileStore(FileStore),
#[serde(rename = "postgresml")]
PostgresML(PostgresML),
}
#[derive(Debug, Clone, Deserialize)]
#[serde(tag = "type")]
pub enum ValidModel {
#[cfg(feature = "llamacpp")]
#[serde(rename = "llamacpp")]
LLaMACPP(LLaMACPP),
#[serde(rename = "openai")]
OpenAI(OpenAI),
#[serde(rename = "anthropic")]
Anthropic(Anthropic),
}
#[derive(Debug, Clone, Deserialize, Serialize)]
#[serde(deny_unknown_fields)]
pub struct ChatMessage {
pub role: String,
pub content: String,
}
#[derive(Debug, Clone, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct Chat {
pub completion: Option<Vec<ChatMessage>>,
pub generation: Option<Vec<ChatMessage>>,
pub chat_template: Option<String>,
pub chat_format: Option<String>,
}
#[derive(Clone, Debug, Deserialize)]
#[allow(clippy::upper_case_acronyms)]
#[serde(deny_unknown_fields)]
pub struct FIM {
pub start: String,
pub middle: String,
pub end: String,
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct PostgresML {
pub database_url: Option<String>,
#[serde(default)]
pub crawl: bool,
}
#[derive(Clone, Debug, Deserialize, Default)]
#[serde(deny_unknown_fields)]
pub struct FileStore {
#[serde(default)]
pub crawl: bool,
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct Model {
pub repository: String,
pub name: Option<String>,
}
const fn n_gpu_layers_default() -> u32 {
1000
}
const fn n_ctx_default() -> u32 {
1000
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct LLaMACPP {
// The model to use
#[serde(flatten)]
pub model: Model,
#[serde(default = "n_gpu_layers_default")]
pub n_gpu_layers: u32,
#[serde(default = "n_ctx_default")]
pub n_ctx: u32,
}
const fn api_max_requests_per_second_default() -> f32 {
0.5
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct OpenAI {
// The auth token env var name
pub auth_token_env_var_name: Option<String>,
pub auth_token: Option<String>,
// The completions endpoint
pub completions_endpoint: Option<String>,
// The chat endpoint
pub chat_endpoint: Option<String>,
// The maximum requests per second
#[serde(default = "api_max_requests_per_second_default")]
pub max_requests_per_second: f32,
// The model name
pub model: String,
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct Anthropic {
// The auth token env var name
pub auth_token_env_var_name: Option<String>,
pub auth_token: Option<String>,
// The completions endpoint
pub completions_endpoint: Option<String>,
// The chat endpoint
pub chat_endpoint: Option<String>,
// The maximum requests per second
#[serde(default = "api_max_requests_per_second_default")]
pub max_requests_per_second: f32,
// The model name
pub model: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct Completion {
// The model key to use
pub model: String,
// Args are deserialized by the backend using them
#[serde(default)]
pub parameters: Kwargs,
}
#[derive(Clone, Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct ValidConfig {
pub memory: ValidMemoryBackend,
pub models: HashMap<String, ValidModel>,
pub completion: Option<Completion>,
}
#[derive(Clone, Debug, Deserialize, Default)]
pub struct ValidClientParams {
#[serde(alias = "rootURI")]
_root_uri: Option<String>,
_workspace_folders: Option<Vec<String>>,
}
#[derive(Clone, Debug)]
pub struct Config {
pub config: ValidConfig,
_client_params: ValidClientParams,
}
impl Config {
pub fn new(mut args: Value) -> Result<Self> {
// Validate that the models specfied are there so we can unwrap
let configuration_args = args
.as_object_mut()
.context("Server configuration must be a JSON object")?
.remove("initializationOptions");
let valid_args = match configuration_args {
Some(configuration_args) => serde_json::from_value(configuration_args)?,
None => anyhow::bail!("lsp-ai does not currently provide a default configuration. Please pass a configuration. See https://github.com/SilasMarvin/lsp-ai for configuration options and examples"),
};
let client_params: ValidClientParams = serde_json::from_value(args)?;
Ok(Self {
config: valid_args,
_client_params: client_params,
})
}
///////////////////////////////////////
// Helpers for the backends ///////////
///////////////////////////////////////
pub fn is_completions_enabled(&self) -> bool {
self.config.completion.is_some()
}
pub fn get_completion_transformer_max_requests_per_second(&self) -> anyhow::Result<f32> {
match &self
.config
.models
.get(
&self
.config
.completion
.as_ref()
.context("Completions is not enabled")?
.model,
)
.with_context(|| {
format!(
"`{}` model not found in `models` config",
&self.config.completion.as_ref().unwrap().model
)
})? {
#[cfg(feature = "llamacpp")]
ValidModel::LLaMACPP(_) => Ok(1.),
ValidModel::OpenAI(openai) => Ok(openai.max_requests_per_second),
ValidModel::Anthropic(anthropic) => Ok(anthropic.max_requests_per_second),
}
}
}
// This makes testing much easier.
#[cfg(test)]
impl Config {
pub fn default_with_file_store_without_models() -> Self {
Self {
config: ValidConfig {
memory: ValidMemoryBackend::FileStore(FileStore { crawl: false }),
models: HashMap::new(),
completion: None,
},
_client_params: ValidClientParams {
_root_uri: None,
_workspace_folders: None,
},
}
}
}
#[cfg(test)]
mod test {
use super::*;
use serde_json::json;
#[test]
#[cfg(feature = "llamacpp")]
fn llama_cpp_config() {
let args = json!({
"initializationOptions": {
"memory": {
"file_store": {}
},
"models": {
"model1": {
"type": "llamacpp",
"repository": "TheBloke/deepseek-coder-6.7B-instruct-GGUF",
"name": "deepseek-coder-6.7b-instruct.Q5_K_S.gguf",
"n_ctx": 2048,
"n_gpu_layers": 35
}
},
"completion": {
"model": "model1",
"parameters": {
"fim": {
"start": "<fim_prefix>",
"middle": "<fim_suffix>",
"end": "<fim_middle>"
},
"max_context": 1024,
"max_new_tokens": 32,
}
}
}
});
Config::new(args).unwrap();
}
#[test]
fn openai_config() {
let args = json!({
"initializationOptions": {
"memory": {
"file_store": {}
},
"models": {
"model1": {
"type": "openai",
"completions_endpoint": "https://api.fireworks.ai/inference/v1/completions",
"model": "accounts/fireworks/models/llama-v2-34b-code",
"auth_token_env_var_name": "FIREWORKS_API_KEY",
},
},
"completion": {
"model": "model1",
"parameters": {
"messages": [
{
"role": "system",
"content": "Test",
},
{
"role": "user",
"content": "Test {CONTEXT} - {CODE}"
}
],
"max_new_tokens": 32,
}
}
}
});
Config::new(args).unwrap();
}
#[test]
fn anthropic_config() {
let args = json!({
"initializationOptions": {
"memory": {
"file_store": {}
},
"models": {
"model1": {
"type": "anthropic",
"completions_endpoint": "https://api.anthropic.com/v1/messages",
"model": "claude-3-haiku-20240307",
"auth_token_env_var_name": "ANTHROPIC_API_KEY",
},
},
"completion": {
"model": "model1",
"parameters": {
"system": "Test",
"messages": [
{
"role": "user",
"content": "Test {CONTEXT} - {CODE}"
}
],
"max_new_tokens": 32,
}
}
}
});
Config::new(args).unwrap();
}
}