feat: add concurrent working threads option to CLI args

src/cli/args.rs

@@ -45,6 +45,10 @@ pub struct CliArgs {
     #[arg(short = 'p', long = "password", global = true)]
     pub password: Option<OsString>,
 
+    /// cocurrent working threads
+    #[arg(short = 'c', long, global = true)]
+    pub threads: Option<usize>,
+
     // Ouch and claps subcommands
     #[command(subcommand)]
     pub cmd: Subcommand,
@@ -142,6 +146,7 @@ mod tests {
             format: None,
             // This is usually replaced in assertion tests
             password: None,
+            threads: None,
             cmd: Subcommand::Decompress {
                 // Put a crazy value here so no test can assert it unintentionally
                 files: vec!["\x00\x11\x22".into()],

src/commands/mod.rs

@@ -53,6 +53,13 @@ pub fn run(
     question_policy: QuestionPolicy,
     file_visibility_policy: FileVisibilityPolicy,
 ) -> crate::Result<()> {
+    if let Some(threads) = args.threads {
+        rayon::ThreadPoolBuilder::new()
+            .num_threads(threads)
+            .build_global()
+            .unwrap();
+    }
+
     match args.cmd {
         Subcommand::Compress {
             files,

src/utils/logger.rs

@@ -1,4 +1,7 @@
-use std::sync::{mpsc, Arc, Barrier, OnceLock};
+use std::{
+    sync::{mpsc, Arc, Barrier, OnceLock},
+    thread,
+};
 
 pub use logger_thread::spawn_logger_thread;
 
@@ -168,7 +171,7 @@ mod logger_thread {
 
     pub fn spawn_logger_thread() {
         let log_receiver = setup_channel();
-        rayon::spawn(move || run_logger(log_receiver));
+        thread::spawn(move || run_logger(log_receiver));
     }
 
     fn run_logger(log_receiver: LogReceiver) {

tests/snapshots/ui__ui_test_usage_help_flag-2.snap

@@ -1,6 +1,7 @@
 ---
 source: tests/ui.rs
 expression: "output_to_string(ouch!(\"-h\"))"
+snapshot_kind: text
 ---
 A command-line utility for easily compressing and decompressing files and directories.
 
@@ -21,5 +22,6 @@ Options:
   -g, --gitignore            Ignores files matched by git's ignore files
   -f, --format <FORMAT>      Specify the format of the archive
   -p, --password <PASSWORD>  decompress or list with password
+  -c, --threads <THREADS>    cocurrent working threads
   -h, --help                 Print help (see more with '--help')
   -V, --version              Print version

tests/snapshots/ui__ui_test_usage_help_flag.snap

@@ -1,6 +1,7 @@
 ---
 source: tests/ui.rs
 expression: "output_to_string(ouch!(\"--help\"))"
+snapshot_kind: text
 ---
 A command-line utility for easily compressing and decompressing files and directories.
 
@@ -43,6 +44,9 @@ Options:
   -p, --password <PASSWORD>
           decompress or list with password
 
+  -c, --threads <THREADS>
+          cocurrent working threads
+
   -h, --help
           Print help (see a summary with '-h')