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perf: get rid of duplicate uname syscall

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ErrorNoInternet 2024-08-15 17:09:25 +08:00
commit 577012ff51
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3 changed files with 12 additions and 8 deletions
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5
src/main.rs
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@ -17,10 +17,11 @@ use color_eyre::Report;
fn main() -> Result<(), Report> { fn main() -> Result<(), Report> {
color_eyre::install()?; color_eyre::install()?;
let utsname = nix::sys::utsname::uname()?;
let fields = Fields { let fields = Fields {
user_info: get_username_and_hostname(), user_info: get_username_and_hostname(&utsname),
os_name: get_os_pretty_name()?, os_name: get_os_pretty_name()?,
kernel_version: get_system_info()?, kernel_version: get_system_info(&utsname)?,
shell: get_shell(), shell: get_shell(),
desktop: get_desktop_info(), desktop: get_desktop_info(),
uptime: get_current()?, uptime: get_current()?,

4
src/release.rs
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@ -1,11 +1,11 @@
use color_eyre::Result; use color_eyre::Result;
use nix::sys::utsname::UtsName;
use std::{ use std::{
fs::File, fs::File,
io::{self, Read}, io::{self, Read},
}; };
pub fn get_system_info() -> nix::Result<String> { pub fn get_system_info(utsname: &UtsName) -> nix::Result<String> {
let utsname = nix::sys::utsname::uname()?;
Ok(format!( Ok(format!(
"{} {} ({})", "{} {} ({})",
utsname.sysname().to_str().unwrap_or("Unknown"), utsname.sysname().to_str().unwrap_or("Unknown"),

11
src/system.rs
View file

@ -1,5 +1,5 @@
use color_eyre::Result; use color_eyre::Result;
use nix::sys::statvfs::statvfs; use nix::sys::{statvfs::statvfs, utsname::UtsName};
use std::{ use std::{
env, env,
@ -9,10 +9,13 @@ use std::{
use crate::colors::{CYAN, GREEN, RED, RESET, YELLOW}; use crate::colors::{CYAN, GREEN, RED, RESET, YELLOW};
pub fn get_username_and_hostname() -> String { pub fn get_username_and_hostname(utsname: &UtsName) -> String {
let username = env::var("USER").unwrap_or("unknown_user".to_string()); let username = env::var("USER").unwrap_or("unknown_user".to_string());
let hostname = nix::unistd::gethostname().unwrap_or("unknown_host".to_string().into()); let hostname = utsname
let hostname = hostname.to_string_lossy(); .nodename()
.to_str()
.unwrap_or("unknown_host")
.to_string();
format!("{YELLOW}{username}{RED}@{GREEN}{hostname}") format!("{YELLOW}{username}{RED}@{GREEN}{hostname}")
} }