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use config::{Config, ConfigError};
use log::LevelFilter;
use log4rs::append::file::FileAppender;
use log4rs::config::{Appender, Root};
use log4rs::encode::pattern::PatternEncoder;
#[derive(Debug, Deserialize, Clone)]
pub struct Logging {
#[serde(default = "Logging::default_level")]
pub level: LevelFilter,
#[serde(default = "Logging::default_file")]
pub file: String,
#[serde(default = "Logging::default_print_backtrace")]
pub print_backtrace: bool,
}
impl Default for Logging {
fn default() -> Self {
Logging {
level: LevelFilter::Off,
file: "debug.log".to_string(),
print_backtrace: true,
}
}
}
impl Logging {
pub fn init_log(&self) {
let logfile = FileAppender::builder()
.encoder(Box::new(PatternEncoder::new("{d} {l} - {m}\n")))
.build(self.file.clone())
.unwrap();
let config = log4rs::config::Config::builder()
.appender(Appender::builder().build("logfile", Box::new(logfile)))
.build(Root::builder().appender("logfile").build(self.level))
.unwrap();
log4rs::init_config(config).unwrap();
}
fn default_level() -> LevelFilter {
Logging::default().level
}
fn default_file() -> String {
Logging::default().file
}
fn default_print_backtrace() -> bool {
Logging::default().print_backtrace
}
}
#[derive(Debug, Deserialize, Clone)]
pub struct Settings {
pub seed: Option<u64>,
pub logging: Logging,
}
impl Settings {
pub fn load() -> Result<Self, ConfigError> {
let mut s = Config::new();
s.merge(config::File::with_name("Config").required(false))?;
s.merge(config::Environment::with_prefix("XAN"))?;
s.try_into()
}
}
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