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perf: pre-allocate strings when reading files

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ErrorNoInternet 2024-08-15 16:43:12 +08:00
commit 407d98f3fa
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2 changed files with 16 additions and 6 deletions
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10
src/release.rs
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@ -1,6 +1,8 @@
use color_eyre::Result;
use std::fs::read_to_string;
use std::io;
use std::{
fs::File,
io::{self, Read},
};
pub fn get_system_info() -> nix::Result<String> {
let utsname = nix::sys::utsname::uname()?;
@ -13,7 +15,9 @@ pub fn get_system_info() -> nix::Result<String> {
}
pub fn get_os_pretty_name() -> Result<String, io::Error> {
let os_release_content = read_to_string("/etc/os-release")?;
let mut os_release_content = String::with_capacity(1024);
File::open("/etc/os-release")?.read_to_string(&mut os_release_content)?;
let pretty_name = os_release_content
.lines()
.find(|line| line.starts_with("PRETTY_NAME="))