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dmesg: add context message to UIoError.

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This commit is contained in:
Fuad Ismail
2024-11-17 10:02:11 +07:00
parent ac6caf17e3
commit e5441aa0ba
1 changed files with 4 additions and 2 deletions
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6
src/uu/dmesg/src/dmesg.rs
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@@ -6,7 +6,7 @@
use clap::{crate_version, Arg, ArgAction, Command}; use clap::{crate_version, Arg, ArgAction, Command};
use regex::Regex; use regex::Regex;
use std::fs; use std::fs;
use uucore::{error::UResult, format_usage, help_about, help_usage}; use uucore::{error::FromIo, error::UResult, format_usage, help_about, help_usage};
mod json; mod json;
@@ -94,7 +94,9 @@ impl Dmesg<'_> {
fn read_lines_from_kmsg_file(&self) -> UResult<Vec<String>> { fn read_lines_from_kmsg_file(&self) -> UResult<Vec<String>> {
let mut lines = vec![]; let mut lines = vec![];
let mut line = vec![]; let mut line = vec![];
for byte in fs::read(self.kmsg_file)? { let kmsg_bytes = fs::read(self.kmsg_file)
.map_err_context(|| format!("cannot open {}", self.kmsg_file))?;
for byte in kmsg_bytes {
if byte == 0 { if byte == 0 {
lines.push(String::from_utf8_lossy(&line).to_string()); lines.push(String::from_utf8_lossy(&line).to_string());
line.clear(); line.clear();