feat: add a function to the argparser so we can stop repeating

coreutils/src/commands/mkdir.rs

@@ -1,18 +1,16 @@
 use boxutils::args::ArgParser;
 use boxutils::commands::Command;
-use std::env;
 use std::fs;
 
 pub struct Mkdir;
 
 impl Command for Mkdir {
     fn execute(&self) {
-        let raw_args: Vec<String> = env::args().collect::<Vec<_>>();
         let args = ArgParser::builder()
             .add_flag("-p")
             .add_flag("--parents")
             .add_flag("--help")
-            .parse("mkdir", raw_args);
+            .parse_args("mkdir");
 
         if args.get_flag("--help") {
             println!("Usage: mkdir [DIR1] [DIR2] etc. pp. [-p, --parents]");

coreutils/src/commands/nproc.rs

@@ -1,18 +1,16 @@
 use boxutils::args::ArgParser;
 use boxutils::commands::Command;
-use num_cpus::{get, get_physical};
-use std::env;
+use num_cpus::get;
 
 pub struct Nproc;
 
 impl Command for Nproc {
     fn execute(&self) {
-        let raw_args = env::args().collect::<Vec<_>>();
         let args = ArgParser::builder()
             .add_flag("--help")
             .add_flag("--ignore")
             .add_flag("--all")
-            .parse("nproc", raw_args);
+            .parse_args("nproc");
         let mut ignore: u64 = 0;
         let mut all = false;
         if args.get_flag("--help") {

utils/src/args.rs

@@ -111,6 +111,10 @@ impl ArgParserBuilder {
             normal_args,
         }
     }
+
+    pub fn parse_args(self, program_name: &str) -> ArgParser {
+        self.parse(program_name, std::env::args().collect())
+    }
 }
 
 #[cfg(test)]