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use std::{
env,
fs::{self, read_to_string},
path::{Path, PathBuf},
};
use anyhow::{anyhow, Result};
use serde::Deserialize;
pub const CONFIG_FILE_NAME: &str = "config.yaml";
pub const ROLES_FILE_NAME: &str = "roles.yaml";
pub const HISTORY_FILE_NAME: &str = "history.txt";
pub const MESSAGE_FILE_NAME: &str = "messages.md";
#[derive(Debug, Clone, Deserialize)]
pub struct Config {
/// Openai api key
pub api_key: String,
/// What sampling temperature to use, between 0 and 2
pub temperature: Option<f64>,
/// Whether to persistently save chat messages
#[serde(default)]
pub save: bool,
/// Set proxy
pub proxy: Option<String>,
/// Used only for debugging
#[serde(default)]
pub dry_run: bool,
/// Predefined roles
#[serde(default, skip_serializing)]
pub roles: Vec<Role>,
}
impl Config {
pub fn init(path: &Path) -> Result<Config> {
let content = read_to_string(path)
.map_err(|err| anyhow!("Failed to load config at {}, {err}", path.display()))?;
let mut config: Config =
serde_yaml::from_str(&content).map_err(|err| anyhow!("Invalid config, {err}"))?;
config.load_roles()?;
Ok(config)
}
pub fn local_file(name: &str) -> Result<PathBuf> {
let env_name = format!(
"{}_CONFIG_DIR",
env!("CARGO_CRATE_NAME").to_ascii_uppercase()
);
let mut path = match env::var(env_name) {
Ok(v) => PathBuf::from(v),
Err(_) => dirs::config_dir().ok_or_else(|| anyhow!("Not found config dir"))?,
};
path.push(env!("CARGO_CRATE_NAME"));
if !path.exists() {
fs::create_dir_all(&path).map_err(|err| {
anyhow!("Failed to create config dir at {}, {err}", path.display())
})?;
}
path.push(name);
Ok(path)
}
fn load_roles(&mut self) -> Result<()> {
let path = Self::local_file(ROLES_FILE_NAME)?;
if !path.exists() {
return Ok(());
}
let content = read_to_string(&path)
.map_err(|err| anyhow!("Failed to load roles at {}, {err}", path.display()))?;
let roles: Vec<Role> =
serde_yaml::from_str(&content).map_err(|err| anyhow!("Invalid roles config, {err}"))?;
self.roles = roles;
Ok(())
}
}
#[derive(Debug, Clone, Deserialize)]
pub struct Role {
/// Role name
pub name: String,
/// Prompt text send to ai for setting up a role
pub prompt: String,
}
impl Role {
pub fn generate(&self, text: &str) -> String {
format!("{} {}", self.prompt, text)
}
}
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