139 lines
No EOL
4.4 KiB
Rust
139 lines
No EOL
4.4 KiB
Rust
// Copyright 2023 The Grim Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::fs::{self, File};
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use std::io::Write;
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use std::path::PathBuf;
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use std::sync::{Arc, RwLock, RwLockReadGuard};
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use grin_config::ConfigError;
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use grin_core::global::ChainTypes;
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use lazy_static::lazy_static;
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use serde::{Deserialize, Serialize};
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use serde::de::DeserializeOwned;
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use crate::node::NodeConfig;
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lazy_static! {
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/// Static settings state to be accessible globally.
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static ref SETTINGS_STATE: Arc<Settings> = Arc::new(Settings::init());
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}
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const APP_CONFIG_FILE_NAME: &'static str = "app.toml";
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/// Application settings config.
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#[derive(Serialize, Deserialize)]
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pub struct AppConfig {
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/// Run node server on startup.
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pub auto_start_node: bool,
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/// Chain type for node server.
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pub chain_type: ChainTypes
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}
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impl Default for AppConfig {
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fn default() -> Self {
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Self {
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auto_start_node: false,
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chain_type: ChainTypes::default(),
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}
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}
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}
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impl AppConfig {
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/// Initialize application config from the disk.
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pub fn init() -> Self {
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let config_path = Settings::get_config_path(APP_CONFIG_FILE_NAME, None);
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let parsed = Settings::read_from_file::<AppConfig>(config_path.clone());
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if !config_path.exists() || parsed.is_err() {
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let default_config = AppConfig::default();
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Settings::write_to_file(&default_config, config_path.to_str().unwrap());
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default_config
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} else {
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parsed.unwrap()
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}
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}
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}
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pub struct Settings {
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app_config: Arc<RwLock<AppConfig>>,
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node_config: Arc<RwLock<NodeConfig>>
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}
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impl Settings {
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/// Initialize settings with app and node configs from the disk.
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fn init() -> Self {
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let app_config = AppConfig::init();
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let chain_type = app_config.chain_type;
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Self {
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app_config: Arc::new(RwLock::new(app_config)),
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node_config: Arc::new(RwLock::new(NodeConfig::init(&chain_type)))
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}
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}
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pub fn get_node_config() -> RwLockReadGuard<'static, NodeConfig> {
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SETTINGS_STATE.node_config.read().unwrap()
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}
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pub fn get_app_config() -> RwLockReadGuard<'static, AppConfig> {
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SETTINGS_STATE.app_config.read().unwrap()
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}
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/// Get working directory path for application.
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pub fn get_working_path(chain_type: Option<&ChainTypes>) -> PathBuf {
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// Check if dir exists
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let mut path = match dirs::home_dir() {
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Some(p) => p,
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None => PathBuf::new(),
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};
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path.push(".grim");
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if chain_type.is_some() {
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path.push(chain_type.unwrap().shortname());
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}
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// Create if the default path doesn't exist
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if !path.exists() {
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let _ = fs::create_dir_all(path.clone());
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}
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path
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}
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/// Get config file path from provided name and [`ChainTypes`] if needed.
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pub fn get_config_path(config_name: &str, chain_type: Option<&ChainTypes>) -> PathBuf {
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let main_path = Self::get_working_path(chain_type);
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let mut settings_path = main_path.clone();
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settings_path.push(config_name);
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settings_path
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}
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/// Read config from file
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pub fn read_from_file<T: DeserializeOwned>(config_path: PathBuf) -> Result<T, ConfigError> {
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let file_content = fs::read_to_string(config_path.clone())?;
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let parsed = toml::from_str::<T>(file_content.as_str());
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match parsed {
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Ok(cfg) => { Ok(cfg) }
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Err(e) => {
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return Err(ConfigError::ParseError(
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config_path.to_str().unwrap().to_string(),
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format!("{}", e),
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));
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}
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}
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}
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/// Write config to a file
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pub fn write_to_file<T: Serialize>(config: &T, name: &str) {
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let conf_out = toml::to_string(config).unwrap();
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let mut file = File::create(name).unwrap();
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file.write_all(conf_out.as_bytes()).unwrap();
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}
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} |