oysteikt/uutil-linux
oysteikt/uutil-linux
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feature: add --hex flag for lscpu

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This commits add the `--hex` flag for lscpu in order to convert
all the decimal values (for now only cores) to hexadecimal.
This commit is contained in:
Harshit Verma 2025-01-23 06:08:43 +05:30
parent c00a4cb0b6
commit ffe2ba60b0
1 changed files with 15 additions and 3 deletions

18
src/uu/lscpu/src/lscpu.rs

@ -3,7 +3,7 @@
// For the full copyright and license information, please view the LICENSE
// file that was distributed with this source code.
use clap::{crate_version, Command};
use clap::{crate_version, Arg, ArgAction, Command};
use regex::Regex;
use std::fs;
use sysinfo::System;
@ -16,9 +16,14 @@ const USAGE: &str = help_usage!("lscpu.md");
pub fn uumain(args: impl uucore::Args) -> UResult<()> {
let _matches: clap::ArgMatches = uu_app().try_get_matches_from(args)?;
let system = System::new_all();
let hex= _matches.get_flag(options::HEX);
println!("Architecture: {}", get_architecture());
println!("CPU(s): {}", system.cpus().len());
if hex {
println!("CPU(s): 0x{:x}", system.cpus().len());
} else {
println!("CPU(s): {}", system.cpus().len());
}
// Add more CPU information here...
if let Ok(contents) = fs::read_to_string("/proc/cpuinfo") {
@ -31,6 +36,11 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
Ok(())
}
// More options can be added here
mod options {
pub const HEX: &str = "hex";
}
fn get_architecture() -> String {
if cfg!(target_arch = "x86") {
"x86".to_string()
@ -46,5 +56,7 @@ pub fn uu_app() -> Command {
.version(crate_version!())
.about(ABOUT)
.override_usage(format_usage(USAGE))
.infer_long_args(true)
.infer_long_args(true).arg(Arg::new(options::HEX).short('x').long("hex").action(ArgAction::SetTrue).help("Use hexadecimal masks for CPU sets (for example 'ff'). The default is to print the
sets in list format (for example 0,1). Note that before version 2.30 the mask has been
printed with 0x prefix.").required(false))
}