Add verbose to the CLI

src/config.rs

@@ -25,6 +25,8 @@ pub struct Config {
 	revocation_list: Option<PathBuf>,
 	#[arg(short = 'x', long, default_value_t = 1296000)]
 	expiration: u64,
+	#[arg(short, long, action = clap::ArgAction::Count)]
+	verbose: u8,
 }
 
 impl Config {
@@ -63,6 +65,10 @@ impl Config {
 	pub fn headers_optional(&self) -> &[String] {
 		&self.header_optional
 	}
+
+	pub fn verbosity(&self) -> log::LevelFilter {
+		crate::logs::log_level(self.verbose)
+	}
 }
 
 fn process_domains(lst: &[String], domain_file: &Option<PathBuf>) -> Result<Vec<String>, String> {

src/logs.rs

@@ -1,7 +1,9 @@
+use crate::config::Config;
 use env_logger::{Builder, Env, Target};
+use log::LevelFilter;
 use std::io::Write;
 
-pub fn init_log_system() {
+pub fn init_log_system(cnf: &Config) {
 	let env = Env::new().filter_or(crate::LOG_LEVEL_ENV_VAR, "warn");
 	let mut builder = Builder::from_env(env);
 	builder.format(|buf, record| {
@@ -13,5 +15,14 @@ pub fn init_log_system() {
 		)
 	});
 	builder.target(Target::Stderr);
+	builder.filter_level(cnf.verbosity());
 	builder.init();
 }
+
+pub fn log_level(level_nb: u8) -> LevelFilter {
+	match level_nb {
+		0 => LevelFilter::Info,
+		1 => LevelFilter::Debug,
+		_ => LevelFilter::Trace,
+	}
+}

src/main.rs

@@ -46,13 +46,13 @@ macro_rules! log_messages {
 }
 
 fn main() {
-	logs::init_log_system();
 	match config::Config::init() {
 		Ok(cnf) => {
+			logs::init_log_system(&cnf);
 			log::debug!("{cnf:?}");
 			main_loop(&cnf)
 		}
-		Err(e) => log::error!("{e}"),
+		Err(e) => eprintln!("{e}"),
 	}
 }