iowo/crates/app/src/config/config_file.rs

52 lines
1.3 KiB
Rust

use std::{
fs,
path::{Path, PathBuf},
};
use serde::{Deserialize, Serialize};
use super::error::ConfigError;
#[derive(Debug, Serialize, Deserialize)]
pub struct Configs {
#[serde(default = "default_example_value")]
pub example_value: i32,
#[serde(default = "default_no_startup_msg")]
pub no_startup_message: bool,
}
/// what the fuck serde why do i need this
fn default_example_value() -> i32 {
43
}
fn default_no_startup_msg() -> bool {
false
}
pub(super) fn find_config_file() -> Result<PathBuf, ConfigError> {
let Some(config_path) = dirs::config_dir() else {
return Err(ConfigError::NoConfigDir);
};
let ron_path = config_path.with_file_name("config.ron");
let json_path = config_path.with_file_name("config.json");
if Path::new(&ron_path).exists() {
Ok(ron_path)
} else if Path::new(&json_path).exists() {
Ok(json_path)
} else {
Err(ConfigError::NoConfigFileFound)
}
}
impl Configs {
pub fn read(p: PathBuf) -> Result<Self, ConfigError> {
match p.extension().map(|v| v.to_str().unwrap()) {
Some("ron") => Ok(serde_json::from_str(&fs::read_to_string(p)?)?),
Some("json") => Ok(ron::from_str(&fs::read_to_string(p)?)?),
e => Err(ConfigError::UnknownExtension(e.map(|v| v.to_owned()))),
}
}
}