From cf0a52150c29cf5f3c1b49af0b70354c6de37d6f Mon Sep 17 00:00:00 2001
From: NotAShelf <raf@notashelf.dev>
Date: Sun, 4 Aug 2024 17:20:34 +0300
Subject: [PATCH] minify and optimize uptime reader

---
 src/uptime.rs | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/src/uptime.rs b/src/uptime.rs
index 2183143..b89cb42 100644
--- a/src/uptime.rs
+++ b/src/uptime.rs
@@ -1,16 +1,14 @@
 use std::fs::File;
-use std::io::{self, BufRead};
+use std::io::{self, BufRead, BufReader};
 use std::path::Path;
 
 pub fn get_current() -> Result<String, io::Error> {
     let path = Path::new("/proc/uptime");
     let file = File::open(path)?;
-    let reader = io::BufReader::new(file);
+    let mut reader = BufReader::new(file);
 
-    let line = reader
-        .lines()
-        .next()
-        .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Failed to read uptime"))??;
+    let mut line = String::new();
+    reader.read_line(&mut line)?;
 
     let uptime_seconds: f64 = line
         .split_whitespace()
@@ -19,7 +17,6 @@ pub fn get_current() -> Result<String, io::Error> {
         .parse()
         .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
 
-    // calculate days, hours, and minutes
     let total_minutes = (uptime_seconds / 60.0).round() as u64;
     let days = total_minutes / (60 * 24);
     let hours = (total_minutes % (60 * 24)) / 60;
@@ -29,11 +26,9 @@ pub fn get_current() -> Result<String, io::Error> {
     if days > 0 {
         parts.push(format!("{days} days"));
     }
-
     if hours > 0 || days > 0 {
         parts.push(format!("{hours} hours"));
     }
-
     if minutes > 0 || hours > 0 || days > 0 {
         parts.push(format!("{minutes} minutes"));
     }